From d743e7f8e355dd23f4692c223f2f360358b87696 Mon Sep 17 00:00:00 2001
From: George Moroz <agricolamz@gmail.com>
Date: Thu, 11 Jan 2024 15:04:42 +0300
Subject: [PATCH] update

---
 dialects.qmd                                  |   21 +-
 docs/dialects.html                            |   19 +-
 docs/search.json                              |    6 +-
 .../crosstalk-1.2.0/css/crosstalk.min.css     |    1 +
 .../site_libs/crosstalk-1.2.0/js/crosstalk.js | 1474 +++++++++
 .../crosstalk-1.2.0/js/crosstalk.js.map       |   37 +
 .../crosstalk-1.2.0/js/crosstalk.min.js       |    2 +
 .../crosstalk-1.2.0/js/crosstalk.min.js.map   |    1 +
 .../crosstalk-1.2.0/scss/crosstalk.scss       |   75 +
 .../datatables-binding-0.28/datatables.js     | 1515 +++++++++
 .../datatables-binding-0.29/datatables.js     | 1515 +++++++++
 .../datatables-binding-0.30/datatables.js     | 1517 +++++++++
 .../css/jquery.dataTables.extra.css           |   28 +
 .../css/jquery.dataTables.min.css             |    1 +
 .../js/jquery.dataTables.min.js               |    4 +
 .../htmlwidgets-1.6.2/htmlwidgets.js          |  901 ++++++
 docs/site_libs/jquery-1.12.4/jquery.min.js    |    5 +
 docs/site_libs/kePrint-0.0.1/kePrint.js       |    8 +
 .../leaflet-binding-2.1.2/leaflet.js          | 2785 ++++++++++++++++
 .../leaflet-binding-2.2.0/leaflet.js          | 2789 +++++++++++++++++
 docs/site_libs/lightable-0.0.1/lightable.css  |  272 ++
 21 files changed, 12962 insertions(+), 14 deletions(-)
 create mode 100644 docs/site_libs/crosstalk-1.2.0/css/crosstalk.min.css
 create mode 100644 docs/site_libs/crosstalk-1.2.0/js/crosstalk.js
 create mode 100644 docs/site_libs/crosstalk-1.2.0/js/crosstalk.js.map
 create mode 100644 docs/site_libs/crosstalk-1.2.0/js/crosstalk.min.js
 create mode 100644 docs/site_libs/crosstalk-1.2.0/js/crosstalk.min.js.map
 create mode 100644 docs/site_libs/crosstalk-1.2.0/scss/crosstalk.scss
 create mode 100644 docs/site_libs/datatables-binding-0.28/datatables.js
 create mode 100644 docs/site_libs/datatables-binding-0.29/datatables.js
 create mode 100644 docs/site_libs/datatables-binding-0.30/datatables.js
 create mode 100644 docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.extra.css
 create mode 100644 docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.min.css
 create mode 100644 docs/site_libs/dt-core-1.13.4/js/jquery.dataTables.min.js
 create mode 100644 docs/site_libs/htmlwidgets-1.6.2/htmlwidgets.js
 create mode 100644 docs/site_libs/jquery-1.12.4/jquery.min.js
 create mode 100644 docs/site_libs/kePrint-0.0.1/kePrint.js
 create mode 100644 docs/site_libs/leaflet-binding-2.1.2/leaflet.js
 create mode 100644 docs/site_libs/leaflet-binding-2.2.0/leaflet.js
 create mode 100644 docs/site_libs/lightable-0.0.1/lightable.css

diff --git a/dialects.qmd b/dialects.qmd
index c1eb4d79..6c151dac 100644
--- a/dialects.qmd
+++ b/dialects.qmd
@@ -601,14 +601,21 @@ tibble::tibble(`нотация Е. А. Брызгуновой` = c("ИК-1:", "
 ## Татарино (Говор 27) {#d27}
 
 Говор села Татарино Каменского района Воронежской области находится в окружении диалектов украинского языка, распространенных на территории РФ (см. [говор 30](#d30) Колодежное).
-Утверждение с широким фокусом чаще всего оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом L* и низким конечным пограничным тоном %H L* L%), широко представленной в южнорусских говорах. Второй вариант оформления этих утверждений – мелодический контур %H L* H- L%, в котором после понижения тона к ударному слогу акцентоносителя наблюдается повышение (и ровный высокий тон при наличии достаточного числа заударных слогов) с последующим падением на конечном слоге интонационной фразы. Этот контур весьма схож с соответствующим контуром северовосточных русских говоров. 
-Для оформления общего вопроса и незавершеноости в говоре используется тональный акцент L+H* (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (%L) и конечным (L%) пограничными тонами: (%L) L+H* L% или (только при оформлении незавершенности) с низким начальным (%L) и высоким конечным (H%): (%L) L+H* L% // (%L) L+H* H%. 
+
+Утверждение с широким фокусом чаще всего оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом `L*` и низким конечным пограничным тоном `%H L* L%`), широко представленной в южнорусских говорах. Второй вариант оформления этих утверждений --- мелодический контур `%H L* H- L%`, в котором после понижения тона к ударному слогу акцентоносителя наблюдается повышение (и ровный высокий тон при наличии достаточного числа заударных слогов) с последующим падением на конечном слоге интонационной фразы. Этот контур весьма схож с соответствующим контуром северовосточных русских говоров. 
+
+Для оформления общего вопроса и незавершеноости в говоре используется тональный акцент `L+H*` (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (`%L`) и конечным (`L%`) пограничными тонами: (`%L`) `L+H* L%` или (только при оформлении незавершенности) с низким начальным (`%L`) и высоким конечным (`H%`): `(%L) L+H* L%` // `(%L) L+H* H%`.
+
 В вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается вариативность: в них преобладает нисходящий тональный акцент, но реализация мелодического контура может быть весьма различной за счет того, что
-    1) акцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного, причем падению предшествует довольно существенное повышение); 
-    2) начальный пограничный тон может быть как высоким1, так и низким;
-    3) в специальных вопросах имеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом – H*+L !H*+L L%;
-    4) наблюдается отчетливая тенденция (очень редкая в русском языке) к противопоставлению частного вопроса и утверждения с узким фокусом за счет разного тайминга нисходящего тонального акцента, более раннего в утверждениях (H+L*) по сравнению со специальными вопросами (H*+L). 
-Наконец, в самом архаическом слое говора (информанты 1915 и 1918 годов рождения) в общем вопросе, переспросе и даже в специальном вопросе представлен контур %H L* H- L%; он, таким образом, может (или мог) употребляться в диалекте Татарина для оформления ненейтрального высказывания любого типа. 
+
+1) акцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного, причем падению предшествует довольно существенное повышение); 
+2) начальный пограничный тон может быть как высоким[^tat_1], так и низким;
+3) в специальных вопросах имеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом --- `H*+L !H*+L L%`;
+4) наблюдается отчетливая тенденция (очень редкая в русском языке) к противопоставлению частного вопроса и утверждения с узким фокусом за счет разного тайминга нисходящего тонального акцента, более раннего в утверждениях (`H+L*`) по сравнению со специальными вопросами (`H*+L`).
+
+Наконец, в самом архаическом слое говора (информанты 1915 и 1918 годов рождения) в общем вопросе, переспросе и даже в специальном вопросе представлен контур `%H L* H- L%`; он, таким образом, может (или мог) употребляться в диалекте Татарина для оформления ненейтрального высказывания любого типа. 
+
+[^tat_1]: Этот контур похож на ИК-5 СРЛЯ, но повышение тона происходит не на первом ударном слоге, а на начальном (или конткр начинается сразу с высокого).
 
 ## Краснолипье (Говор 28) {#d28}
 
diff --git a/docs/dialects.html b/docs/dialects.html
index 8eaea126..91239dd2 100644
--- a/docs/dialects.html
+++ b/docs/dialects.html
@@ -730,7 +730,17 @@ <h2 class="anchored" data-anchor-id="d26">Лух (Говор 26)</h2>
 </section>
 <section id="d27" class="level2">
 <h2 class="anchored" data-anchor-id="d27">Татарино (Говор 27)</h2>
-<p>Говор села Татарино Каменского района Воронежской области находится в окружении диалектов украинского языка, распространенных на территории РФ (см. <a href="#d30">говор 30</a> Колодежное). Утверждение с широким фокусом чаще всего оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом L* и низким конечным пограничным тоном %H L* L%), широко представленной в южнорусских говорах. Второй вариант оформления этих утверждений – мелодический контур %H L* H- L%, в котором после понижения тона к ударному слогу акцентоносителя наблюдается повышение (и ровный высокий тон при наличии достаточного числа заударных слогов) с последующим падением на конечном слоге интонационной фразы. Этот контур весьма схож с соответствующим контуром северовосточных русских говоров. Для оформления общего вопроса и незавершеноости в говоре используется тональный акцент L+H* (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (%L) и конечным (L%) пограничными тонами: (%L) L+H* L% или (только при оформлении незавершенности) с низким начальным (%L) и высоким конечным (H%): (%L) L+H* L% // (%L) L+H* H%. В вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается вариативность: в них преобладает нисходящий тональный акцент, но реализация мелодического контура может быть весьма различной за счет того, что 1) акцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного, причем падению предшествует довольно существенное повышение); 2) начальный пограничный тон может быть как высоким1, так и низким; 3) в специальных вопросах имеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом – H<em>+L !H</em>+L L%; 4) наблюдается отчетливая тенденция (очень редкая в русском языке) к противопоставлению частного вопроса и утверждения с узким фокусом за счет разного тайминга нисходящего тонального акцента, более раннего в утверждениях (H+L<em>) по сравнению со специальными вопросами (H</em>+L). Наконец, в самом архаическом слое говора (информанты 1915 и 1918 годов рождения) в общем вопросе, переспросе и даже в специальном вопросе представлен контур %H L* H- L%; он, таким образом, может (или мог) употребляться в диалекте Татарина для оформления ненейтрального высказывания любого типа.</p>
+<p>Говор села Татарино Каменского района Воронежской области находится в окружении диалектов украинского языка, распространенных на территории РФ (см. <a href="#d30">говор 30</a> Колодежное).</p>
+<p>Утверждение с широким фокусом чаще всего оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом <code>L*</code> и низким конечным пограничным тоном <code>%H L* L%</code>), широко представленной в южнорусских говорах. Второй вариант оформления этих утверждений — мелодический контур <code>%H L* H- L%</code>, в котором после понижения тона к ударному слогу акцентоносителя наблюдается повышение (и ровный высокий тон при наличии достаточного числа заударных слогов) с последующим падением на конечном слоге интонационной фразы. Этот контур весьма схож с соответствующим контуром северовосточных русских говоров.</p>
+<p>Для оформления общего вопроса и незавершеноости в говоре используется тональный акцент <code>L+H*</code> (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (<code>%L</code>) и конечным (<code>L%</code>) пограничными тонами: (<code>%L</code>) <code>L+H* L%</code> или (только при оформлении незавершенности) с низким начальным (<code>%L</code>) и высоким конечным (<code>H%</code>): <code>(%L) L+H* L%</code> // <code>(%L) L+H* H%</code>.</p>
+<p>В вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается вариативность: в них преобладает нисходящий тональный акцент, но реализация мелодического контура может быть весьма различной за счет того, что</p>
+<ol type="1">
+<li>акцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного, причем падению предшествует довольно существенное повышение);</li>
+<li>начальный пограничный тон может быть как высоким<a href="#fn2" class="footnote-ref" id="fnref2" role="doc-noteref"><sup>2</sup></a>, так и низким;</li>
+<li>в специальных вопросах имеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом — <code>H*+L !H*+L L%</code>;</li>
+<li>наблюдается отчетливая тенденция (очень редкая в русском языке) к противопоставлению частного вопроса и утверждения с узким фокусом за счет разного тайминга нисходящего тонального акцента, более раннего в утверждениях (<code>H+L*</code>) по сравнению со специальными вопросами (<code>H*+L</code>).</li>
+</ol>
+<p>Наконец, в самом архаическом слое говора (информанты 1915 и 1918 годов рождения) в общем вопросе, переспросе и даже в специальном вопросе представлен контур <code>%H L* H- L%</code>; он, таким образом, может (или мог) употребляться в диалекте Татарина для оформления ненейтрального высказывания любого типа.</p>
 </section>
 <section id="d28" class="level2">
 <h2 class="anchored" data-anchor-id="d28">Краснолипье (Говор 28)</h2>
@@ -756,8 +766,8 @@ <h2 class="anchored" data-anchor-id="d30">Колодежное (Говор 30)</
 <p>Наоборот, в вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается очень значительная вариативность: в них преобладает нисходящий тональный акцент, который мы обозначаем <code>H*+L</code>, но фонетическая реализация мелодического контура может быть весьма различной за счет того, что</p>
 <ol type="1">
 <li>акцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного): <code>H*(+L)</code>;</li>
-<li>начальный пограничный тон может быть как высоким<a href="#fn2" class="footnote-ref" id="fnref2" role="doc-noteref"><sup>2</sup></a>, так и низким;</li>
-<li>в последнем случае повышение тона, предшествующее акцентному падению, может происходить в начале ударного гласного<a href="#fn3" class="footnote-ref" id="fnref3" role="doc-noteref"><sup>3</sup></a>, что сближает этот фонологически нисходящий акцент с фонологически восходящим (общий вопрос, незавершенность); полного совпадения, однако, не происходит, поскольку сохраняется различие в преобладании восходящего или нисходящего движения тона;</li>
+<li>начальный пограничный тон может быть как высоким<a href="#fn3" class="footnote-ref" id="fnref3" role="doc-noteref"><sup>3</sup></a>, так и низким;</li>
+<li>в последнем случае повышение тона, предшествующее акцентному падению, может происходить в начале ударного гласного<a href="#fn4" class="footnote-ref" id="fnref4" role="doc-noteref"><sup>4</sup></a>, что сближает этот фонологически нисходящий акцент с фонологически восходящим (общий вопрос, незавершенность); полного совпадения, однако, не происходит, поскольку сохраняется различие в преобладании восходящего или нисходящего движения тона;</li>
 <li>имеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом — <code>H*+L !H*+L L%</code> (он же представлен и в вокативе).</li>
 </ol>
 
@@ -952,7 +962,8 @@ <h2 class="anchored" data-anchor-id="d30">Колодежное (Говор 30)</
 <ol>
 <li id="fn1"><p>!H означает более низкую тональную цель, чем собственно H.<a href="#fnref1" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
 <li id="fn2"><p>Этот контур похож на ИК-5 СРЛЯ, но повышение тона происходит не на первом ударном слоге, а на начальном (или конткр начинается сразу с высокого).<a href="#fnref2" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
-<li id="fn3"><p>В этом случае падение часто продолжается на заударных слогах.<a href="#fnref3" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
+<li id="fn3"><p>Этот контур похож на ИК-5 СРЛЯ, но повышение тона происходит не на первом ударном слоге, а на начальном (или конткр начинается сразу с высокого).<a href="#fnref3" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
+<li id="fn4"><p>В этом случае падение часто продолжается на заударных слогах.<a href="#fnref4" class="footnote-back" role="doc-backlink">↩︎</a></p></li>
 </ol>
 </section></div></main> <!-- /main -->
 <script id="quarto-html-after-body" type="application/javascript">
diff --git a/docs/search.json b/docs/search.json
index 643d83e5..d038e104 100644
--- a/docs/search.json
+++ b/docs/search.json
@@ -193,7 +193,7 @@
     "href": "dialects.html#d27",
     "title": "PRuD",
     "section": "Татарино (Говор 27)",
-    "text": "Татарино (Говор 27)\nГовор села Татарино Каменского района Воронежской области находится в окружении диалектов украинского языка, распространенных на территории РФ (см. говор 30 Колодежное). Утверждение с широким фокусом чаще всего оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом L* и низким конечным пограничным тоном %H L* L%), широко представленной в южнорусских говорах. Второй вариант оформления этих утверждений – мелодический контур %H L* H- L%, в котором после понижения тона к ударному слогу акцентоносителя наблюдается повышение (и ровный высокий тон при наличии достаточного числа заударных слогов) с последующим падением на конечном слоге интонационной фразы. Этот контур весьма схож с соответствующим контуром северовосточных русских говоров. Для оформления общего вопроса и незавершеноости в говоре используется тональный акцент L+H* (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (%L) и конечным (L%) пограничными тонами: (%L) L+H* L% или (только при оформлении незавершенности) с низким начальным (%L) и высоким конечным (H%): (%L) L+H* L% // (%L) L+H* H%. В вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается вариативность: в них преобладает нисходящий тональный акцент, но реализация мелодического контура может быть весьма различной за счет того, что 1) акцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного, причем падению предшествует довольно существенное повышение); 2) начальный пограничный тон может быть как высоким1, так и низким; 3) в специальных вопросах имеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом – H+L !H+L L%; 4) наблюдается отчетливая тенденция (очень редкая в русском языке) к противопоставлению частного вопроса и утверждения с узким фокусом за счет разного тайминга нисходящего тонального акцента, более раннего в утверждениях (H+L) по сравнению со специальными вопросами (H+L). Наконец, в самом архаическом слое говора (информанты 1915 и 1918 годов рождения) в общем вопросе, переспросе и даже в специальном вопросе представлен контур %H L* H- L%; он, таким образом, может (или мог) употребляться в диалекте Татарина для оформления ненейтрального высказывания любого типа."
+    "text": "Татарино (Говор 27)\nГовор села Татарино Каменского района Воронежской области находится в окружении диалектов украинского языка, распространенных на территории РФ (см. говор 30 Колодежное).\nУтверждение с широким фокусом чаще всего оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом L* и низким конечным пограничным тоном %H L* L%), широко представленной в южнорусских говорах. Второй вариант оформления этих утверждений — мелодический контур %H L* H- L%, в котором после понижения тона к ударному слогу акцентоносителя наблюдается повышение (и ровный высокий тон при наличии достаточного числа заударных слогов) с последующим падением на конечном слоге интонационной фразы. Этот контур весьма схож с соответствующим контуром северовосточных русских говоров.\nДля оформления общего вопроса и незавершеноости в говоре используется тональный акцент L+H* (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (%L) и конечным (L%) пограничными тонами: (%L) L+H* L% или (только при оформлении незавершенности) с низким начальным (%L) и высоким конечным (H%): (%L) L+H* L% // (%L) L+H* H%.\nВ вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается вариативность: в них преобладает нисходящий тональный акцент, но реализация мелодического контура может быть весьма различной за счет того, что\n\nакцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного, причем падению предшествует довольно существенное повышение);\nначальный пограничный тон может быть как высоким2, так и низким;\nв специальных вопросах имеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом — H*+L !H*+L L%;\nнаблюдается отчетливая тенденция (очень редкая в русском языке) к противопоставлению частного вопроса и утверждения с узким фокусом за счет разного тайминга нисходящего тонального акцента, более раннего в утверждениях (H+L*) по сравнению со специальными вопросами (H*+L).\n\nНаконец, в самом архаическом слое говора (информанты 1915 и 1918 годов рождения) в общем вопросе, переспросе и даже в специальном вопросе представлен контур %H L* H- L%; он, таким образом, может (или мог) употребляться в диалекте Татарина для оформления ненейтрального высказывания любого типа."
   },
   {
     "objectID": "dialects.html#d28",
@@ -207,14 +207,14 @@
     "href": "dialects.html#d30",
     "title": "PRuD",
     "section": "Колодежное (Говор 30)",
-    "text": "Колодежное (Говор 30)\nГовор села Колодежное Подгоренского района Воронежской области является одним из диалектов украинского языка, распространенных на территории РФ.\nУтверждение с широким фокусом оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом L* и низким конечным пограничным тоном %H L* L%), широко представленной и в южнорусских говорах.\nДля оформления общего вопроса и незавершеноости в говоре очень последовательно используется тональный акцент L+H* (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (%L) и конечным (L%) пограничными тонами: (%L) L+H* L%.\nНаоборот, в вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается очень значительная вариативность: в них преобладает нисходящий тональный акцент, который мы обозначаем H*+L, но фонетическая реализация мелодического контура может быть весьма различной за счет того, что\n\nакцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного): H*(+L);\nначальный пограничный тон может быть как высоким2, так и низким;\nв последнем случае повышение тона, предшествующее акцентному падению, может происходить в начале ударного гласного3, что сближает этот фонологически нисходящий акцент с фонологически восходящим (общий вопрос, незавершенность); полного совпадения, однако, не происходит, поскольку сохраняется различие в преобладании восходящего или нисходящего движения тона;\nимеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом — H*+L !H*+L L% (он же представлен и в вокативе)."
+    "text": "Колодежное (Говор 30)\nГовор села Колодежное Подгоренского района Воронежской области является одним из диалектов украинского языка, распространенных на территории РФ.\nУтверждение с широким фокусом оформляется в говоре конструкцией с высоким начальным пограничным тоном, тональным акцентом L* и низким конечным пограничным тоном %H L* L%), широко представленной и в южнорусских говорах.\nДля оформления общего вопроса и незавершеноости в говоре очень последовательно используется тональный акцент L+H* (повышение тона в первой половине ударного гласного с последующим падением на нем же) в сочетании с низким начальным (%L) и конечным (L%) пограничными тонами: (%L) L+H* L%.\nНаоборот, в вопросах с вопросительным словом и утверждениях с узким фокусом наблюдается очень значительная вариативность: в них преобладает нисходящий тональный акцент, который мы обозначаем H*+L, но фонетическая реализация мелодического контура может быть весьма различной за счет того, что\n\nакцентное падение тона может начинаться как на границе инициали и ядра ударного слога, так и с очень существенной задержкой (с середины ударного гласного): H*(+L);\nначальный пограничный тон может быть как высоким3, так и низким;\nв последнем случае повышение тона, предшествующее акцентному падению, может происходить в начале ударного гласного4, что сближает этот фонологически нисходящий акцент с фонологически восходящим (общий вопрос, незавершенность); полного совпадения, однако, не происходит, поскольку сохраняется различие в преобладании восходящего или нисходящего движения тона;\nимеется также мелодический контур с двумя нисходящими тональными акцентами с даунстепом — H*+L !H*+L L% (он же представлен и в вокативе)."
   },
   {
     "objectID": "dialects.html#footnotes",
     "href": "dialects.html#footnotes",
     "title": "PRuD",
     "section": "Примечания",
-    "text": "Примечания\n\n\n!H означает более низкую тональную цель, чем собственно H.↩︎\nЭтот контур похож на ИК-5 СРЛЯ, но повышение тона происходит не на первом ударном слоге, а на начальном (или конткр начинается сразу с высокого).↩︎\nВ этом случае падение часто продолжается на заударных слогах.↩︎"
+    "text": "Примечания\n\n\n!H означает более низкую тональную цель, чем собственно H.↩︎\nЭтот контур похож на ИК-5 СРЛЯ, но повышение тона происходит не на первом ударном слоге, а на начальном (или конткр начинается сразу с высокого).↩︎\nЭтот контур похож на ИК-5 СРЛЯ, но повышение тона происходит не на первом ударном слоге, а на начальном (или конткр начинается сразу с высокого).↩︎\nВ этом случае падение часто продолжается на заударных слогах.↩︎"
   },
   {
     "objectID": "index.html",
diff --git a/docs/site_libs/crosstalk-1.2.0/css/crosstalk.min.css b/docs/site_libs/crosstalk-1.2.0/css/crosstalk.min.css
new file mode 100644
index 00000000..6b453828
--- /dev/null
+++ b/docs/site_libs/crosstalk-1.2.0/css/crosstalk.min.css
@@ -0,0 +1 @@
+.container-fluid.crosstalk-bscols{margin-left:-30px;margin-right:-30px;white-space:normal}body>.container-fluid.crosstalk-bscols{margin-left:auto;margin-right:auto}.crosstalk-input-checkboxgroup .crosstalk-options-group .crosstalk-options-column{display:inline-block;padding-right:12px;vertical-align:top}@media only screen and (max-width: 480px){.crosstalk-input-checkboxgroup .crosstalk-options-group .crosstalk-options-column{display:block;padding-right:inherit}}.crosstalk-input{margin-bottom:15px}.crosstalk-input .control-label{margin-bottom:0;vertical-align:middle}.crosstalk-input input[type="checkbox"]{margin:4px 0 0;margin-top:1px;line-height:normal}.crosstalk-input .checkbox{position:relative;display:block;margin-top:10px;margin-bottom:10px}.crosstalk-input .checkbox>label{padding-left:20px;margin-bottom:0;font-weight:400;cursor:pointer}.crosstalk-input .checkbox input[type="checkbox"],.crosstalk-input .checkbox-inline input[type="checkbox"]{position:absolute;margin-top:2px;margin-left:-20px}.crosstalk-input .checkbox+.checkbox{margin-top:-5px}.crosstalk-input .checkbox-inline{position:relative;display:inline-block;padding-left:20px;margin-bottom:0;font-weight:400;vertical-align:middle;cursor:pointer}.crosstalk-input .checkbox-inline+.checkbox-inline{margin-top:0;margin-left:10px}
diff --git a/docs/site_libs/crosstalk-1.2.0/js/crosstalk.js b/docs/site_libs/crosstalk-1.2.0/js/crosstalk.js
new file mode 100644
index 00000000..fd9eb53d
--- /dev/null
+++ b/docs/site_libs/crosstalk-1.2.0/js/crosstalk.js
@@ -0,0 +1,1474 @@
+(function(){function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}return e})()({1:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Events = function () {
+  function Events() {
+    _classCallCheck(this, Events);
+
+    this._types = {};
+    this._seq = 0;
+  }
+
+  _createClass(Events, [{
+    key: "on",
+    value: function on(eventType, listener) {
+      var subs = this._types[eventType];
+      if (!subs) {
+        subs = this._types[eventType] = {};
+      }
+      var sub = "sub" + this._seq++;
+      subs[sub] = listener;
+      return sub;
+    }
+
+    // Returns false if no match, or string for sub name if matched
+
+  }, {
+    key: "off",
+    value: function off(eventType, listener) {
+      var subs = this._types[eventType];
+      if (typeof listener === "function") {
+        for (var key in subs) {
+          if (subs.hasOwnProperty(key)) {
+            if (subs[key] === listener) {
+              delete subs[key];
+              return key;
+            }
+          }
+        }
+        return false;
+      } else if (typeof listener === "string") {
+        if (subs && subs[listener]) {
+          delete subs[listener];
+          return listener;
+        }
+        return false;
+      } else {
+        throw new Error("Unexpected type for listener");
+      }
+    }
+  }, {
+    key: "trigger",
+    value: function trigger(eventType, arg, thisObj) {
+      var subs = this._types[eventType];
+      for (var key in subs) {
+        if (subs.hasOwnProperty(key)) {
+          subs[key].call(thisObj, arg);
+        }
+      }
+    }
+  }]);
+
+  return Events;
+}();
+
+exports.default = Events;
+
+},{}],2:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.FilterHandle = undefined;
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _events = require("./events");
+
+var _events2 = _interopRequireDefault(_events);
+
+var _filterset = require("./filterset");
+
+var _filterset2 = _interopRequireDefault(_filterset);
+
+var _group = require("./group");
+
+var _group2 = _interopRequireDefault(_group);
+
+var _util = require("./util");
+
+var util = _interopRequireWildcard(_util);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function getFilterSet(group) {
+  var fsVar = group.var("filterset");
+  var result = fsVar.get();
+  if (!result) {
+    result = new _filterset2.default();
+    fsVar.set(result);
+  }
+  return result;
+}
+
+var id = 1;
+function nextId() {
+  return id++;
+}
+
+/**
+ * Use this class to contribute to, and listen for changes to, the filter set
+ * for the given group of widgets. Filter input controls should create one
+ * `FilterHandle` and only call {@link FilterHandle#set}. Output widgets that
+ * wish to displayed filtered data should create one `FilterHandle` and use
+ * the {@link FilterHandle#filteredKeys} property and listen for change
+ * events.
+ *
+ * If two (or more) `FilterHandle` instances in the same webpage share the
+ * same group name, they will contribute to a single "filter set". Each
+ * `FilterHandle` starts out with a `null` value, which means they take
+ * nothing away from the set of data that should be shown. To make a
+ * `FilterHandle` actually remove data from the filter set, set its value to
+ * an array of keys which should be displayed. Crosstalk will aggregate the
+ * various key arrays by finding their intersection; only keys that are
+ * present in all non-null filter handles are considered part of the filter
+ * set.
+ *
+ * @param {string} [group] - The name of the Crosstalk group, or if none,
+ *   null or undefined (or any other falsy value). This can be changed later
+ *   via the {@link FilterHandle#setGroup} method.
+ * @param {Object} [extraInfo] - An object whose properties will be copied to
+ *   the event object whenever an event is emitted.
+ */
+
+var FilterHandle = exports.FilterHandle = function () {
+  function FilterHandle(group, extraInfo) {
+    _classCallCheck(this, FilterHandle);
+
+    this._eventRelay = new _events2.default();
+    this._emitter = new util.SubscriptionTracker(this._eventRelay);
+
+    // Name of the group we're currently tracking, if any. Can change over time.
+    this._group = null;
+    // The filterSet that we're tracking, if any. Can change over time.
+    this._filterSet = null;
+    // The Var we're currently tracking, if any. Can change over time.
+    this._filterVar = null;
+    // The event handler subscription we currently have on var.on("change").
+    this._varOnChangeSub = null;
+
+    this._extraInfo = util.extend({ sender: this }, extraInfo);
+
+    this._id = "filter" + nextId();
+
+    this.setGroup(group);
+  }
+
+  /**
+   * Changes the Crosstalk group membership of this FilterHandle. If `set()` was
+   * previously called on this handle, switching groups will clear those keys
+   * from the old group's filter set. These keys will not be applied to the new
+   * group's filter set either. In other words, `setGroup()` effectively calls
+   * `clear()` before switching groups.
+   *
+   * @param {string} group - The name of the Crosstalk group, or null (or
+   *   undefined) to clear the group.
+   */
+
+
+  _createClass(FilterHandle, [{
+    key: "setGroup",
+    value: function setGroup(group) {
+      var _this = this;
+
+      // If group is unchanged, do nothing
+      if (this._group === group) return;
+      // Treat null, undefined, and other falsy values the same
+      if (!this._group && !group) return;
+
+      if (this._filterVar) {
+        this._filterVar.off("change", this._varOnChangeSub);
+        this.clear();
+        this._varOnChangeSub = null;
+        this._filterVar = null;
+        this._filterSet = null;
+      }
+
+      this._group = group;
+
+      if (group) {
+        group = (0, _group2.default)(group);
+        this._filterSet = getFilterSet(group);
+        this._filterVar = (0, _group2.default)(group).var("filter");
+        var sub = this._filterVar.on("change", function (e) {
+          _this._eventRelay.trigger("change", e, _this);
+        });
+        this._varOnChangeSub = sub;
+      }
+    }
+
+    /**
+     * Combine the given `extraInfo` (if any) with the handle's default
+     * `_extraInfo` (if any).
+     * @private
+     */
+
+  }, {
+    key: "_mergeExtraInfo",
+    value: function _mergeExtraInfo(extraInfo) {
+      return util.extend({}, this._extraInfo ? this._extraInfo : null, extraInfo ? extraInfo : null);
+    }
+
+    /**
+     * Close the handle. This clears this handle's contribution to the filter set,
+     * and unsubscribes all event listeners.
+     */
+
+  }, {
+    key: "close",
+    value: function close() {
+      this._emitter.removeAllListeners();
+      this.clear();
+      this.setGroup(null);
+    }
+
+    /**
+     * Clear this handle's contribution to the filter set.
+     *
+     * @param {Object} [extraInfo] - Extra properties to be included on the event
+     *   object that's passed to listeners (in addition to any options that were
+     *   passed into the `FilterHandle` constructor).
+     * 
+     * @fires FilterHandle#change
+     */
+
+  }, {
+    key: "clear",
+    value: function clear(extraInfo) {
+      if (!this._filterSet) return;
+      this._filterSet.clear(this._id);
+      this._onChange(extraInfo);
+    }
+
+    /**
+     * Set this handle's contribution to the filter set. This array should consist
+     * of the keys of the rows that _should_ be displayed; any keys that are not
+     * present in the array will be considered _filtered out_. Note that multiple
+     * `FilterHandle` instances in the group may each contribute an array of keys,
+     * and only those keys that appear in _all_ of the arrays make it through the
+     * filter.
+     *
+     * @param {string[]} keys - Empty array, or array of keys. To clear the
+     *   filter, don't pass an empty array; instead, use the
+     *   {@link FilterHandle#clear} method.
+     * @param {Object} [extraInfo] - Extra properties to be included on the event
+     *   object that's passed to listeners (in addition to any options that were
+     *   passed into the `FilterHandle` constructor).
+     * 
+     * @fires FilterHandle#change
+     */
+
+  }, {
+    key: "set",
+    value: function set(keys, extraInfo) {
+      if (!this._filterSet) return;
+      this._filterSet.update(this._id, keys);
+      this._onChange(extraInfo);
+    }
+
+    /**
+     * @return {string[]|null} - Either: 1) an array of keys that made it through
+     *   all of the `FilterHandle` instances, or, 2) `null`, which means no filter
+     *   is being applied (all data should be displayed).
+     */
+
+  }, {
+    key: "on",
+
+
+    /**
+     * Subscribe to events on this `FilterHandle`.
+     *
+     * @param {string} eventType - Indicates the type of events to listen to.
+     *   Currently, only `"change"` is supported.
+     * @param {FilterHandle~listener} listener - The callback function that
+     *   will be invoked when the event occurs.
+     * @return {string} - A token to pass to {@link FilterHandle#off} to cancel
+     *   this subscription.
+     */
+    value: function on(eventType, listener) {
+      return this._emitter.on(eventType, listener);
+    }
+
+    /**
+     * Cancel event subscriptions created by {@link FilterHandle#on}.
+     *
+     * @param {string} eventType - The type of event to unsubscribe.
+     * @param {string|FilterHandle~listener} listener - Either the callback
+     *   function previously passed into {@link FilterHandle#on}, or the
+     *   string that was returned from {@link FilterHandle#on}.
+     */
+
+  }, {
+    key: "off",
+    value: function off(eventType, listener) {
+      return this._emitter.off(eventType, listener);
+    }
+  }, {
+    key: "_onChange",
+    value: function _onChange(extraInfo) {
+      if (!this._filterSet) return;
+      this._filterVar.set(this._filterSet.value, this._mergeExtraInfo(extraInfo));
+    }
+
+    /**
+     * @callback FilterHandle~listener
+     * @param {Object} event - An object containing details of the event. For
+     *   `"change"` events, this includes the properties `value` (the new
+     *   value of the filter set, or `null` if no filter set is active),
+     *   `oldValue` (the previous value of the filter set), and `sender` (the
+     *   `FilterHandle` instance that made the change).
+     */
+
+  }, {
+    key: "filteredKeys",
+    get: function get() {
+      return this._filterSet ? this._filterSet.value : null;
+    }
+  }]);
+
+  return FilterHandle;
+}();
+
+/**
+ * @event FilterHandle#change
+ * @type {object}
+ * @property {object} value - The new value of the filter set, or `null`
+ *   if no filter set is active.
+ * @property {object} oldValue - The previous value of the filter set.
+ * @property {FilterHandle} sender - The `FilterHandle` instance that
+ *   changed the value.
+ */
+
+},{"./events":1,"./filterset":3,"./group":4,"./util":11}],3:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _util = require("./util");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function naturalComparator(a, b) {
+  if (a === b) {
+    return 0;
+  } else if (a < b) {
+    return -1;
+  } else if (a > b) {
+    return 1;
+  }
+}
+
+/**
+ * @private
+ */
+
+var FilterSet = function () {
+  function FilterSet() {
+    _classCallCheck(this, FilterSet);
+
+    this.reset();
+  }
+
+  _createClass(FilterSet, [{
+    key: "reset",
+    value: function reset() {
+      // Key: handle ID, Value: array of selected keys, or null
+      this._handles = {};
+      // Key: key string, Value: count of handles that include it
+      this._keys = {};
+      this._value = null;
+      this._activeHandles = 0;
+    }
+  }, {
+    key: "update",
+    value: function update(handleId, keys) {
+      if (keys !== null) {
+        keys = keys.slice(0); // clone before sorting
+        keys.sort(naturalComparator);
+      }
+
+      var _diffSortedLists = (0, _util.diffSortedLists)(this._handles[handleId], keys),
+          added = _diffSortedLists.added,
+          removed = _diffSortedLists.removed;
+
+      this._handles[handleId] = keys;
+
+      for (var i = 0; i < added.length; i++) {
+        this._keys[added[i]] = (this._keys[added[i]] || 0) + 1;
+      }
+      for (var _i = 0; _i < removed.length; _i++) {
+        this._keys[removed[_i]]--;
+      }
+
+      this._updateValue(keys);
+    }
+
+    /**
+     * @param {string[]} keys Sorted array of strings that indicate
+     * a superset of possible keys.
+     * @private
+     */
+
+  }, {
+    key: "_updateValue",
+    value: function _updateValue() {
+      var keys = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this._allKeys;
+
+      var handleCount = Object.keys(this._handles).length;
+      if (handleCount === 0) {
+        this._value = null;
+      } else {
+        this._value = [];
+        for (var i = 0; i < keys.length; i++) {
+          var count = this._keys[keys[i]];
+          if (count === handleCount) {
+            this._value.push(keys[i]);
+          }
+        }
+      }
+    }
+  }, {
+    key: "clear",
+    value: function clear(handleId) {
+      if (typeof this._handles[handleId] === "undefined") {
+        return;
+      }
+
+      var keys = this._handles[handleId];
+      if (!keys) {
+        keys = [];
+      }
+
+      for (var i = 0; i < keys.length; i++) {
+        this._keys[keys[i]]--;
+      }
+      delete this._handles[handleId];
+
+      this._updateValue();
+    }
+  }, {
+    key: "value",
+    get: function get() {
+      return this._value;
+    }
+  }, {
+    key: "_allKeys",
+    get: function get() {
+      var allKeys = Object.keys(this._keys);
+      allKeys.sort(naturalComparator);
+      return allKeys;
+    }
+  }]);
+
+  return FilterSet;
+}();
+
+exports.default = FilterSet;
+
+},{"./util":11}],4:[function(require,module,exports){
+(function (global){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+exports.default = group;
+
+var _var2 = require("./var");
+
+var _var3 = _interopRequireDefault(_var2);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+// Use a global so that multiple copies of crosstalk.js can be loaded and still
+// have groups behave as singletons across all copies.
+global.__crosstalk_groups = global.__crosstalk_groups || {};
+var groups = global.__crosstalk_groups;
+
+function group(groupName) {
+  if (groupName && typeof groupName === "string") {
+    if (!groups.hasOwnProperty(groupName)) {
+      groups[groupName] = new Group(groupName);
+    }
+    return groups[groupName];
+  } else if ((typeof groupName === "undefined" ? "undefined" : _typeof(groupName)) === "object" && groupName._vars && groupName.var) {
+    // Appears to already be a group object
+    return groupName;
+  } else if (Array.isArray(groupName) && groupName.length == 1 && typeof groupName[0] === "string") {
+    return group(groupName[0]);
+  } else {
+    throw new Error("Invalid groupName argument");
+  }
+}
+
+var Group = function () {
+  function Group(name) {
+    _classCallCheck(this, Group);
+
+    this.name = name;
+    this._vars = {};
+  }
+
+  _createClass(Group, [{
+    key: "var",
+    value: function _var(name) {
+      if (!name || typeof name !== "string") {
+        throw new Error("Invalid var name");
+      }
+
+      if (!this._vars.hasOwnProperty(name)) this._vars[name] = new _var3.default(this, name);
+      return this._vars[name];
+    }
+  }, {
+    key: "has",
+    value: function has(name) {
+      if (!name || typeof name !== "string") {
+        throw new Error("Invalid var name");
+      }
+
+      return this._vars.hasOwnProperty(name);
+    }
+  }]);
+
+  return Group;
+}();
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{"./var":12}],5:[function(require,module,exports){
+(function (global){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _group = require("./group");
+
+var _group2 = _interopRequireDefault(_group);
+
+var _selection = require("./selection");
+
+var _filter = require("./filter");
+
+var _input = require("./input");
+
+require("./input_selectize");
+
+require("./input_checkboxgroup");
+
+require("./input_slider");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var defaultGroup = (0, _group2.default)("default");
+
+function var_(name) {
+  return defaultGroup.var(name);
+}
+
+function has(name) {
+  return defaultGroup.has(name);
+}
+
+if (global.Shiny) {
+  global.Shiny.addCustomMessageHandler("update-client-value", function (message) {
+    if (typeof message.group === "string") {
+      (0, _group2.default)(message.group).var(message.name).set(message.value);
+    } else {
+      var_(message.name).set(message.value);
+    }
+  });
+}
+
+var crosstalk = {
+  group: _group2.default,
+  var: var_,
+  has: has,
+  SelectionHandle: _selection.SelectionHandle,
+  FilterHandle: _filter.FilterHandle,
+  bind: _input.bind
+};
+
+/**
+ * @namespace crosstalk
+ */
+exports.default = crosstalk;
+
+global.crosstalk = crosstalk;
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{"./filter":2,"./group":4,"./input":6,"./input_checkboxgroup":7,"./input_selectize":8,"./input_slider":9,"./selection":10}],6:[function(require,module,exports){
+(function (global){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.register = register;
+exports.bind = bind;
+var $ = global.jQuery;
+
+var bindings = {};
+
+function register(reg) {
+  bindings[reg.className] = reg;
+  if (global.document && global.document.readyState !== "complete") {
+    $(function () {
+      bind();
+    });
+  } else if (global.document) {
+    setTimeout(bind, 100);
+  }
+}
+
+function bind() {
+  Object.keys(bindings).forEach(function (className) {
+    var binding = bindings[className];
+    $("." + binding.className).not(".crosstalk-input-bound").each(function (i, el) {
+      bindInstance(binding, el);
+    });
+  });
+}
+
+// Escape jQuery identifier
+function $escape(val) {
+  return val.replace(/([!"#$%&'()*+,./:;<=>?@[\\\]^`{|}~])/g, "\\$1");
+}
+
+function bindEl(el) {
+  var $el = $(el);
+  Object.keys(bindings).forEach(function (className) {
+    if ($el.hasClass(className) && !$el.hasClass("crosstalk-input-bound")) {
+      var binding = bindings[className];
+      bindInstance(binding, el);
+    }
+  });
+}
+
+function bindInstance(binding, el) {
+  var jsonEl = $(el).find("script[type='application/json'][data-for='" + $escape(el.id) + "']");
+  var data = JSON.parse(jsonEl[0].innerText);
+
+  var instance = binding.factory(el, data);
+  $(el).data("crosstalk-instance", instance);
+  $(el).addClass("crosstalk-input-bound");
+}
+
+if (global.Shiny) {
+  var inputBinding = new global.Shiny.InputBinding();
+  var _$ = global.jQuery;
+  _$.extend(inputBinding, {
+    find: function find(scope) {
+      return _$(scope).find(".crosstalk-input");
+    },
+    initialize: function initialize(el) {
+      if (!_$(el).hasClass("crosstalk-input-bound")) {
+        bindEl(el);
+      }
+    },
+    getId: function getId(el) {
+      return el.id;
+    },
+    getValue: function getValue(el) {},
+    setValue: function setValue(el, value) {},
+    receiveMessage: function receiveMessage(el, data) {},
+    subscribe: function subscribe(el, callback) {
+      _$(el).data("crosstalk-instance").resume();
+    },
+    unsubscribe: function unsubscribe(el) {
+      _$(el).data("crosstalk-instance").suspend();
+    }
+  });
+  global.Shiny.inputBindings.register(inputBinding, "crosstalk.inputBinding");
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{}],7:[function(require,module,exports){
+(function (global){
+"use strict";
+
+var _input = require("./input");
+
+var input = _interopRequireWildcard(_input);
+
+var _filter = require("./filter");
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+var $ = global.jQuery;
+
+input.register({
+  className: "crosstalk-input-checkboxgroup",
+
+  factory: function factory(el, data) {
+    /*
+     * map: {"groupA": ["keyA", "keyB", ...], ...}
+     * group: "ct-groupname"
+     */
+    var ctHandle = new _filter.FilterHandle(data.group);
+
+    var lastKnownKeys = void 0;
+    var $el = $(el);
+    $el.on("change", "input[type='checkbox']", function () {
+      var checked = $el.find("input[type='checkbox']:checked");
+      if (checked.length === 0) {
+        lastKnownKeys = null;
+        ctHandle.clear();
+      } else {
+        var keys = {};
+        checked.each(function () {
+          data.map[this.value].forEach(function (key) {
+            keys[key] = true;
+          });
+        });
+        var keyArray = Object.keys(keys);
+        keyArray.sort();
+        lastKnownKeys = keyArray;
+        ctHandle.set(keyArray);
+      }
+    });
+
+    return {
+      suspend: function suspend() {
+        ctHandle.clear();
+      },
+      resume: function resume() {
+        if (lastKnownKeys) ctHandle.set(lastKnownKeys);
+      }
+    };
+  }
+});
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{"./filter":2,"./input":6}],8:[function(require,module,exports){
+(function (global){
+"use strict";
+
+var _input = require("./input");
+
+var input = _interopRequireWildcard(_input);
+
+var _util = require("./util");
+
+var util = _interopRequireWildcard(_util);
+
+var _filter = require("./filter");
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+var $ = global.jQuery;
+
+input.register({
+  className: "crosstalk-input-select",
+
+  factory: function factory(el, data) {
+    /*
+     * items: {value: [...], label: [...]}
+     * map: {"groupA": ["keyA", "keyB", ...], ...}
+     * group: "ct-groupname"
+     */
+
+    var first = [{ value: "", label: "(All)" }];
+    var items = util.dataframeToD3(data.items);
+    var opts = {
+      options: first.concat(items),
+      valueField: "value",
+      labelField: "label",
+      searchField: "label"
+    };
+
+    var select = $(el).find("select")[0];
+
+    var selectize = $(select).selectize(opts)[0].selectize;
+
+    var ctHandle = new _filter.FilterHandle(data.group);
+
+    var lastKnownKeys = void 0;
+    selectize.on("change", function () {
+      if (selectize.items.length === 0) {
+        lastKnownKeys = null;
+        ctHandle.clear();
+      } else {
+        var keys = {};
+        selectize.items.forEach(function (group) {
+          data.map[group].forEach(function (key) {
+            keys[key] = true;
+          });
+        });
+        var keyArray = Object.keys(keys);
+        keyArray.sort();
+        lastKnownKeys = keyArray;
+        ctHandle.set(keyArray);
+      }
+    });
+
+    return {
+      suspend: function suspend() {
+        ctHandle.clear();
+      },
+      resume: function resume() {
+        if (lastKnownKeys) ctHandle.set(lastKnownKeys);
+      }
+    };
+  }
+});
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{"./filter":2,"./input":6,"./util":11}],9:[function(require,module,exports){
+(function (global){
+"use strict";
+
+var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
+
+var _input = require("./input");
+
+var input = _interopRequireWildcard(_input);
+
+var _filter = require("./filter");
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+var $ = global.jQuery;
+var strftime = global.strftime;
+
+input.register({
+  className: "crosstalk-input-slider",
+
+  factory: function factory(el, data) {
+    /*
+     * map: {"groupA": ["keyA", "keyB", ...], ...}
+     * group: "ct-groupname"
+     */
+    var ctHandle = new _filter.FilterHandle(data.group);
+
+    var opts = {};
+    var $el = $(el).find("input");
+    var dataType = $el.data("data-type");
+    var timeFormat = $el.data("time-format");
+    var round = $el.data("round");
+    var timeFormatter = void 0;
+
+    // Set up formatting functions
+    if (dataType === "date") {
+      timeFormatter = strftime.utc();
+      opts.prettify = function (num) {
+        return timeFormatter(timeFormat, new Date(num));
+      };
+    } else if (dataType === "datetime") {
+      var timezone = $el.data("timezone");
+      if (timezone) timeFormatter = strftime.timezone(timezone);else timeFormatter = strftime;
+
+      opts.prettify = function (num) {
+        return timeFormatter(timeFormat, new Date(num));
+      };
+    } else if (dataType === "number") {
+      if (typeof round !== "undefined") opts.prettify = function (num) {
+        var factor = Math.pow(10, round);
+        return Math.round(num * factor) / factor;
+      };
+    }
+
+    $el.ionRangeSlider(opts);
+
+    function getValue() {
+      var result = $el.data("ionRangeSlider").result;
+
+      // Function for converting numeric value from slider to appropriate type.
+      var convert = void 0;
+      var dataType = $el.data("data-type");
+      if (dataType === "date") {
+        convert = function convert(val) {
+          return formatDateUTC(new Date(+val));
+        };
+      } else if (dataType === "datetime") {
+        convert = function convert(val) {
+          // Convert ms to s
+          return +val / 1000;
+        };
+      } else {
+        convert = function convert(val) {
+          return +val;
+        };
+      }
+
+      if ($el.data("ionRangeSlider").options.type === "double") {
+        return [convert(result.from), convert(result.to)];
+      } else {
+        return convert(result.from);
+      }
+    }
+
+    var lastKnownKeys = null;
+
+    $el.on("change.crosstalkSliderInput", function (event) {
+      if (!$el.data("updating") && !$el.data("animating")) {
+        var _getValue = getValue(),
+            _getValue2 = _slicedToArray(_getValue, 2),
+            from = _getValue2[0],
+            to = _getValue2[1];
+
+        var keys = [];
+        for (var i = 0; i < data.values.length; i++) {
+          var val = data.values[i];
+          if (val >= from && val <= to) {
+            keys.push(data.keys[i]);
+          }
+        }
+        keys.sort();
+        ctHandle.set(keys);
+        lastKnownKeys = keys;
+      }
+    });
+
+    // let $el = $(el);
+    // $el.on("change", "input[type="checkbox"]", function() {
+    //   let checked = $el.find("input[type="checkbox"]:checked");
+    //   if (checked.length === 0) {
+    //     ctHandle.clear();
+    //   } else {
+    //     let keys = {};
+    //     checked.each(function() {
+    //       data.map[this.value].forEach(function(key) {
+    //         keys[key] = true;
+    //       });
+    //     });
+    //     let keyArray = Object.keys(keys);
+    //     keyArray.sort();
+    //     ctHandle.set(keyArray);
+    //   }
+    // });
+
+    return {
+      suspend: function suspend() {
+        ctHandle.clear();
+      },
+      resume: function resume() {
+        if (lastKnownKeys) ctHandle.set(lastKnownKeys);
+      }
+    };
+  }
+});
+
+// Convert a number to a string with leading zeros
+function padZeros(n, digits) {
+  var str = n.toString();
+  while (str.length < digits) {
+    str = "0" + str;
+  }return str;
+}
+
+// Given a Date object, return a string in yyyy-mm-dd format, using the
+// UTC date. This may be a day off from the date in the local time zone.
+function formatDateUTC(date) {
+  if (date instanceof Date) {
+    return date.getUTCFullYear() + "-" + padZeros(date.getUTCMonth() + 1, 2) + "-" + padZeros(date.getUTCDate(), 2);
+  } else {
+    return null;
+  }
+}
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{"./filter":2,"./input":6}],10:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.SelectionHandle = undefined;
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _events = require("./events");
+
+var _events2 = _interopRequireDefault(_events);
+
+var _group = require("./group");
+
+var _group2 = _interopRequireDefault(_group);
+
+var _util = require("./util");
+
+var util = _interopRequireWildcard(_util);
+
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+/**
+ * Use this class to read and write (and listen for changes to) the selection
+ * for a Crosstalk group. This is intended to be used for linked brushing.
+ *
+ * If two (or more) `SelectionHandle` instances in the same webpage share the
+ * same group name, they will share the same state. Setting the selection using
+ * one `SelectionHandle` instance will result in the `value` property instantly
+ * changing across the others, and `"change"` event listeners on all instances
+ * (including the one that initiated the sending) will fire.
+ *
+ * @param {string} [group] - The name of the Crosstalk group, or if none,
+ *   null or undefined (or any other falsy value). This can be changed later
+ *   via the [SelectionHandle#setGroup](#setGroup) method.
+ * @param {Object} [extraInfo] - An object whose properties will be copied to
+ *   the event object whenever an event is emitted.
+ */
+var SelectionHandle = exports.SelectionHandle = function () {
+  function SelectionHandle() {
+    var group = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
+    var extraInfo = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
+
+    _classCallCheck(this, SelectionHandle);
+
+    this._eventRelay = new _events2.default();
+    this._emitter = new util.SubscriptionTracker(this._eventRelay);
+
+    // Name of the group we're currently tracking, if any. Can change over time.
+    this._group = null;
+    // The Var we're currently tracking, if any. Can change over time.
+    this._var = null;
+    // The event handler subscription we currently have on var.on("change").
+    this._varOnChangeSub = null;
+
+    this._extraInfo = util.extend({ sender: this }, extraInfo);
+
+    this.setGroup(group);
+  }
+
+  /**
+   * Changes the Crosstalk group membership of this SelectionHandle. The group
+   * being switched away from (if any) will not have its selection value
+   * modified as a result of calling `setGroup`, even if this handle was the
+   * most recent handle to set the selection of the group.
+   *
+   * The group being switched to (if any) will also not have its selection value
+   * modified as a result of calling `setGroup`. If you want to set the
+   * selection value of the new group, call `set` explicitly.
+   *
+   * @param {string} group - The name of the Crosstalk group, or null (or
+   *   undefined) to clear the group.
+   */
+
+
+  _createClass(SelectionHandle, [{
+    key: "setGroup",
+    value: function setGroup(group) {
+      var _this = this;
+
+      // If group is unchanged, do nothing
+      if (this._group === group) return;
+      // Treat null, undefined, and other falsy values the same
+      if (!this._group && !group) return;
+
+      if (this._var) {
+        this._var.off("change", this._varOnChangeSub);
+        this._var = null;
+        this._varOnChangeSub = null;
+      }
+
+      this._group = group;
+
+      if (group) {
+        this._var = (0, _group2.default)(group).var("selection");
+        var sub = this._var.on("change", function (e) {
+          _this._eventRelay.trigger("change", e, _this);
+        });
+        this._varOnChangeSub = sub;
+      }
+    }
+
+    /**
+     * Retrieves the current selection for the group represented by this
+     * `SelectionHandle`.
+     *
+     * - If no selection is active, then this value will be falsy.
+     * - If a selection is active, but no data points are selected, then this
+     *   value will be an empty array.
+     * - If a selection is active, and data points are selected, then the keys
+     *   of the selected data points will be present in the array.
+     */
+
+  }, {
+    key: "_mergeExtraInfo",
+
+
+    /**
+     * Combines the given `extraInfo` (if any) with the handle's default
+     * `_extraInfo` (if any).
+     * @private
+     */
+    value: function _mergeExtraInfo(extraInfo) {
+      // Important incidental effect: shallow clone is returned
+      return util.extend({}, this._extraInfo ? this._extraInfo : null, extraInfo ? extraInfo : null);
+    }
+
+    /**
+     * Overwrites the current selection for the group, and raises the `"change"`
+     * event among all of the group's '`SelectionHandle` instances (including
+     * this one).
+     *
+     * @fires SelectionHandle#change
+     * @param {string[]} selectedKeys - Falsy, empty array, or array of keys (see
+     *   {@link SelectionHandle#value}).
+     * @param {Object} [extraInfo] - Extra properties to be included on the event
+     *   object that's passed to listeners (in addition to any options that were
+     *   passed into the `SelectionHandle` constructor).
+     */
+
+  }, {
+    key: "set",
+    value: function set(selectedKeys, extraInfo) {
+      if (this._var) this._var.set(selectedKeys, this._mergeExtraInfo(extraInfo));
+    }
+
+    /**
+     * Overwrites the current selection for the group, and raises the `"change"`
+     * event among all of the group's '`SelectionHandle` instances (including
+     * this one).
+     *
+     * @fires SelectionHandle#change
+     * @param {Object} [extraInfo] - Extra properties to be included on the event
+     *   object that's passed to listeners (in addition to any that were passed
+     *   into the `SelectionHandle` constructor).
+     */
+
+  }, {
+    key: "clear",
+    value: function clear(extraInfo) {
+      if (this._var) this.set(void 0, this._mergeExtraInfo(extraInfo));
+    }
+
+    /**
+     * Subscribes to events on this `SelectionHandle`.
+     *
+     * @param {string} eventType - Indicates the type of events to listen to.
+     *   Currently, only `"change"` is supported.
+     * @param {SelectionHandle~listener} listener - The callback function that
+     *   will be invoked when the event occurs.
+     * @return {string} - A token to pass to {@link SelectionHandle#off} to cancel
+     *   this subscription.
+     */
+
+  }, {
+    key: "on",
+    value: function on(eventType, listener) {
+      return this._emitter.on(eventType, listener);
+    }
+
+    /**
+     * Cancels event subscriptions created by {@link SelectionHandle#on}.
+     *
+     * @param {string} eventType - The type of event to unsubscribe.
+     * @param {string|SelectionHandle~listener} listener - Either the callback
+     *   function previously passed into {@link SelectionHandle#on}, or the
+     *   string that was returned from {@link SelectionHandle#on}.
+     */
+
+  }, {
+    key: "off",
+    value: function off(eventType, listener) {
+      return this._emitter.off(eventType, listener);
+    }
+
+    /**
+     * Shuts down the `SelectionHandle` object.
+     *
+     * Removes all event listeners that were added through this handle.
+     */
+
+  }, {
+    key: "close",
+    value: function close() {
+      this._emitter.removeAllListeners();
+      this.setGroup(null);
+    }
+  }, {
+    key: "value",
+    get: function get() {
+      return this._var ? this._var.get() : null;
+    }
+  }]);
+
+  return SelectionHandle;
+}();
+
+/**
+ * @callback SelectionHandle~listener
+ * @param {Object} event - An object containing details of the event. For
+ *   `"change"` events, this includes the properties `value` (the new
+ *   value of the selection, or `undefined` if no selection is active),
+ *   `oldValue` (the previous value of the selection), and `sender` (the
+ *   `SelectionHandle` instance that made the change).
+ */
+
+/**
+ * @event SelectionHandle#change
+ * @type {object}
+ * @property {object} value - The new value of the selection, or `undefined`
+ *   if no selection is active.
+ * @property {object} oldValue - The previous value of the selection.
+ * @property {SelectionHandle} sender - The `SelectionHandle` instance that
+ *   changed the value.
+ */
+
+},{"./events":1,"./group":4,"./util":11}],11:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+exports.extend = extend;
+exports.checkSorted = checkSorted;
+exports.diffSortedLists = diffSortedLists;
+exports.dataframeToD3 = dataframeToD3;
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function extend(target) {
+  for (var _len = arguments.length, sources = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+    sources[_key - 1] = arguments[_key];
+  }
+
+  for (var i = 0; i < sources.length; i++) {
+    var src = sources[i];
+    if (typeof src === "undefined" || src === null) continue;
+
+    for (var key in src) {
+      if (src.hasOwnProperty(key)) {
+        target[key] = src[key];
+      }
+    }
+  }
+  return target;
+}
+
+function checkSorted(list) {
+  for (var i = 1; i < list.length; i++) {
+    if (list[i] <= list[i - 1]) {
+      throw new Error("List is not sorted or contains duplicate");
+    }
+  }
+}
+
+function diffSortedLists(a, b) {
+  var i_a = 0;
+  var i_b = 0;
+
+  if (!a) a = [];
+  if (!b) b = [];
+
+  var a_only = [];
+  var b_only = [];
+
+  checkSorted(a);
+  checkSorted(b);
+
+  while (i_a < a.length && i_b < b.length) {
+    if (a[i_a] === b[i_b]) {
+      i_a++;
+      i_b++;
+    } else if (a[i_a] < b[i_b]) {
+      a_only.push(a[i_a++]);
+    } else {
+      b_only.push(b[i_b++]);
+    }
+  }
+
+  if (i_a < a.length) a_only = a_only.concat(a.slice(i_a));
+  if (i_b < b.length) b_only = b_only.concat(b.slice(i_b));
+  return {
+    removed: a_only,
+    added: b_only
+  };
+}
+
+// Convert from wide: { colA: [1,2,3], colB: [4,5,6], ... }
+// to long: [ {colA: 1, colB: 4}, {colA: 2, colB: 5}, ... ]
+function dataframeToD3(df) {
+  var names = [];
+  var length = void 0;
+  for (var name in df) {
+    if (df.hasOwnProperty(name)) names.push(name);
+    if (_typeof(df[name]) !== "object" || typeof df[name].length === "undefined") {
+      throw new Error("All fields must be arrays");
+    } else if (typeof length !== "undefined" && length !== df[name].length) {
+      throw new Error("All fields must be arrays of the same length");
+    }
+    length = df[name].length;
+  }
+  var results = [];
+  var item = void 0;
+  for (var row = 0; row < length; row++) {
+    item = {};
+    for (var col = 0; col < names.length; col++) {
+      item[names[col]] = df[names[col]][row];
+    }
+    results.push(item);
+  }
+  return results;
+}
+
+/**
+ * Keeps track of all event listener additions/removals and lets all active
+ * listeners be removed with a single operation.
+ *
+ * @private
+ */
+
+var SubscriptionTracker = exports.SubscriptionTracker = function () {
+  function SubscriptionTracker(emitter) {
+    _classCallCheck(this, SubscriptionTracker);
+
+    this._emitter = emitter;
+    this._subs = {};
+  }
+
+  _createClass(SubscriptionTracker, [{
+    key: "on",
+    value: function on(eventType, listener) {
+      var sub = this._emitter.on(eventType, listener);
+      this._subs[sub] = eventType;
+      return sub;
+    }
+  }, {
+    key: "off",
+    value: function off(eventType, listener) {
+      var sub = this._emitter.off(eventType, listener);
+      if (sub) {
+        delete this._subs[sub];
+      }
+      return sub;
+    }
+  }, {
+    key: "removeAllListeners",
+    value: function removeAllListeners() {
+      var _this = this;
+
+      var current_subs = this._subs;
+      this._subs = {};
+      Object.keys(current_subs).forEach(function (sub) {
+        _this._emitter.off(current_subs[sub], sub);
+      });
+    }
+  }]);
+
+  return SubscriptionTracker;
+}();
+
+},{}],12:[function(require,module,exports){
+(function (global){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _events = require("./events");
+
+var _events2 = _interopRequireDefault(_events);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var Var = function () {
+  function Var(group, name, /*optional*/value) {
+    _classCallCheck(this, Var);
+
+    this._group = group;
+    this._name = name;
+    this._value = value;
+    this._events = new _events2.default();
+  }
+
+  _createClass(Var, [{
+    key: "get",
+    value: function get() {
+      return this._value;
+    }
+  }, {
+    key: "set",
+    value: function set(value, /*optional*/event) {
+      if (this._value === value) {
+        // Do nothing; the value hasn't changed
+        return;
+      }
+      var oldValue = this._value;
+      this._value = value;
+      // Alert JavaScript listeners that the value has changed
+      var evt = {};
+      if (event && (typeof event === "undefined" ? "undefined" : _typeof(event)) === "object") {
+        for (var k in event) {
+          if (event.hasOwnProperty(k)) evt[k] = event[k];
+        }
+      }
+      evt.oldValue = oldValue;
+      evt.value = value;
+      this._events.trigger("change", evt, this);
+
+      // TODO: Make this extensible, to let arbitrary back-ends know that
+      // something has changed
+      if (global.Shiny && global.Shiny.onInputChange) {
+        global.Shiny.onInputChange(".clientValue-" + (this._group.name !== null ? this._group.name + "-" : "") + this._name, typeof value === "undefined" ? null : value);
+      }
+    }
+  }, {
+    key: "on",
+    value: function on(eventType, listener) {
+      return this._events.on(eventType, listener);
+    }
+  }, {
+    key: "off",
+    value: function off(eventType, listener) {
+      return this._events.off(eventType, listener);
+    }
+  }]);
+
+  return Var;
+}();
+
+exports.default = Var;
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{"./events":1}]},{},[5])
+//# sourceMappingURL=crosstalk.js.map
diff --git a/docs/site_libs/crosstalk-1.2.0/js/crosstalk.js.map b/docs/site_libs/crosstalk-1.2.0/js/crosstalk.js.map
new file mode 100644
index 00000000..cff94f08
--- /dev/null
+++ b/docs/site_libs/crosstalk-1.2.0/js/crosstalk.js.map
@@ -0,0 +1,37 @@
+{
+  "version": 3,
+  "sources": [
+    "node_modules/browser-pack/_prelude.js",
+    "javascript/src/events.js",
+    "javascript/src/filter.js",
+    "javascript/src/filterset.js",
+    "javascript/src/group.js",
+    "javascript/src/index.js",
+    "javascript/src/input.js",
+    "javascript/src/input_checkboxgroup.js",
+    "javascript/src/input_selectize.js",
+    "javascript/src/input_slider.js",
+    "javascript/src/selection.js",
+    "javascript/src/util.js",
+    "javascript/src/var.js"
+  ],
+  "names": [],
+  "mappings": 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+  "file": "generated.js",
+  "sourceRoot": "",
+  "sourcesContent": [
+    "(function(){function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}return e})()",
+    "export default class Events {\n  constructor() {\n    this._types = {};\n    this._seq = 0;\n  }\n\n  on(eventType, listener) {\n    let subs = this._types[eventType];\n    if (!subs) {\n      subs = this._types[eventType] = {};\n    }\n    let sub = \"sub\" + (this._seq++);\n    subs[sub] = listener;\n    return sub;\n  }\n\n  // Returns false if no match, or string for sub name if matched\n  off(eventType, listener) {\n    let subs = this._types[eventType];\n    if (typeof(listener) === \"function\") {\n      for (let key in subs) {\n        if (subs.hasOwnProperty(key)) {\n          if (subs[key] === listener) {\n            delete subs[key];\n            return key;\n          }\n        }\n      }\n      return false;\n    } else if (typeof(listener) === \"string\") {\n      if (subs && subs[listener]) {\n        delete subs[listener];\n        return listener;\n      }\n      return false;\n    } else {\n      throw new Error(\"Unexpected type for listener\");\n    }\n  }\n\n  trigger(eventType, arg, thisObj) {\n    let subs = this._types[eventType];\n    for (let key in subs) {\n      if (subs.hasOwnProperty(key)) {\n        subs[key].call(thisObj, arg);\n      }\n    }\n  }\n}\n",
+    "import Events from \"./events\";\nimport FilterSet from \"./filterset\";\nimport grp from \"./group\";\nimport * as util from \"./util\";\n\nfunction getFilterSet(group) {\n  let fsVar = group.var(\"filterset\");\n  let result = fsVar.get();\n  if (!result) {\n    result = new FilterSet();\n    fsVar.set(result);\n  }\n  return result;\n}\n\nlet id = 1;\nfunction nextId() {\n  return id++;\n}\n\n/**\n * Use this class to contribute to, and listen for changes to, the filter set\n * for the given group of widgets. Filter input controls should create one\n * `FilterHandle` and only call {@link FilterHandle#set}. Output widgets that\n * wish to displayed filtered data should create one `FilterHandle` and use\n * the {@link FilterHandle#filteredKeys} property and listen for change\n * events.\n *\n * If two (or more) `FilterHandle` instances in the same webpage share the\n * same group name, they will contribute to a single \"filter set\". Each\n * `FilterHandle` starts out with a `null` value, which means they take\n * nothing away from the set of data that should be shown. To make a\n * `FilterHandle` actually remove data from the filter set, set its value to\n * an array of keys which should be displayed. Crosstalk will aggregate the\n * various key arrays by finding their intersection; only keys that are\n * present in all non-null filter handles are considered part of the filter\n * set.\n *\n * @param {string} [group] - The name of the Crosstalk group, or if none,\n *   null or undefined (or any other falsy value). This can be changed later\n *   via the {@link FilterHandle#setGroup} method.\n * @param {Object} [extraInfo] - An object whose properties will be copied to\n *   the event object whenever an event is emitted.\n */\nexport class FilterHandle {\n  constructor(group, extraInfo) {\n    this._eventRelay = new Events();\n    this._emitter = new util.SubscriptionTracker(this._eventRelay);\n\n    // Name of the group we're currently tracking, if any. Can change over time.\n    this._group = null;\n    // The filterSet that we're tracking, if any. Can change over time.\n    this._filterSet = null;\n    // The Var we're currently tracking, if any. Can change over time.\n    this._filterVar = null;\n    // The event handler subscription we currently have on var.on(\"change\").\n    this._varOnChangeSub = null;\n\n    this._extraInfo = util.extend({ sender: this }, extraInfo);\n\n    this._id = \"filter\" + nextId();\n\n    this.setGroup(group);\n  }\n\n  /**\n   * Changes the Crosstalk group membership of this FilterHandle. If `set()` was\n   * previously called on this handle, switching groups will clear those keys\n   * from the old group's filter set. These keys will not be applied to the new\n   * group's filter set either. In other words, `setGroup()` effectively calls\n   * `clear()` before switching groups.\n   *\n   * @param {string} group - The name of the Crosstalk group, or null (or\n   *   undefined) to clear the group.\n   */\n  setGroup(group) {\n    // If group is unchanged, do nothing\n    if (this._group === group)\n      return;\n    // Treat null, undefined, and other falsy values the same\n    if (!this._group && !group)\n      return;\n\n    if (this._filterVar) {\n      this._filterVar.off(\"change\", this._varOnChangeSub);\n      this.clear();\n      this._varOnChangeSub = null;\n      this._filterVar = null;\n      this._filterSet = null;\n    }\n\n    this._group = group;\n\n    if (group) {\n      group = grp(group);\n      this._filterSet = getFilterSet(group);\n      this._filterVar = grp(group).var(\"filter\");\n      let sub = this._filterVar.on(\"change\", (e) => {\n        this._eventRelay.trigger(\"change\", e, this);\n      });\n      this._varOnChangeSub = sub;\n    }\n  }\n\n  /**\n   * Combine the given `extraInfo` (if any) with the handle's default\n   * `_extraInfo` (if any).\n   * @private\n   */\n  _mergeExtraInfo(extraInfo) {\n    return util.extend({},\n      this._extraInfo ? this._extraInfo : null,\n      extraInfo ? extraInfo : null);\n  }\n\n  /**\n   * Close the handle. This clears this handle's contribution to the filter set,\n   * and unsubscribes all event listeners.\n   */\n  close() {\n    this._emitter.removeAllListeners();\n    this.clear();\n    this.setGroup(null);\n  }\n\n  /**\n   * Clear this handle's contribution to the filter set.\n   *\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any options that were\n   *   passed into the `FilterHandle` constructor).\n   * \n   * @fires FilterHandle#change\n   */\n  clear(extraInfo) {\n    if (!this._filterSet)\n      return;\n    this._filterSet.clear(this._id);\n    this._onChange(extraInfo);\n  }\n\n  /**\n   * Set this handle's contribution to the filter set. This array should consist\n   * of the keys of the rows that _should_ be displayed; any keys that are not\n   * present in the array will be considered _filtered out_. Note that multiple\n   * `FilterHandle` instances in the group may each contribute an array of keys,\n   * and only those keys that appear in _all_ of the arrays make it through the\n   * filter.\n   *\n   * @param {string[]} keys - Empty array, or array of keys. To clear the\n   *   filter, don't pass an empty array; instead, use the\n   *   {@link FilterHandle#clear} method.\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any options that were\n   *   passed into the `FilterHandle` constructor).\n   * \n   * @fires FilterHandle#change\n   */\n  set(keys, extraInfo) {\n    if (!this._filterSet)\n      return;\n    this._filterSet.update(this._id, keys);\n    this._onChange(extraInfo);\n  }\n\n  /**\n   * @return {string[]|null} - Either: 1) an array of keys that made it through\n   *   all of the `FilterHandle` instances, or, 2) `null`, which means no filter\n   *   is being applied (all data should be displayed).\n   */\n  get filteredKeys() {\n    return this._filterSet ? this._filterSet.value : null;\n  }\n\n  /**\n   * Subscribe to events on this `FilterHandle`.\n   *\n   * @param {string} eventType - Indicates the type of events to listen to.\n   *   Currently, only `\"change\"` is supported.\n   * @param {FilterHandle~listener} listener - The callback function that\n   *   will be invoked when the event occurs.\n   * @return {string} - A token to pass to {@link FilterHandle#off} to cancel\n   *   this subscription.\n   */\n  on(eventType, listener) {\n    return this._emitter.on(eventType, listener);\n  }\n\n  /**\n   * Cancel event subscriptions created by {@link FilterHandle#on}.\n   *\n   * @param {string} eventType - The type of event to unsubscribe.\n   * @param {string|FilterHandle~listener} listener - Either the callback\n   *   function previously passed into {@link FilterHandle#on}, or the\n   *   string that was returned from {@link FilterHandle#on}.\n   */\n  off(eventType, listener) {\n    return this._emitter.off(eventType, listener);\n  }\n\n  _onChange(extraInfo) {\n    if (!this._filterSet)\n      return;\n    this._filterVar.set(this._filterSet.value, this._mergeExtraInfo(extraInfo));\n  }\n\n  /**\n   * @callback FilterHandle~listener\n   * @param {Object} event - An object containing details of the event. For\n   *   `\"change\"` events, this includes the properties `value` (the new\n   *   value of the filter set, or `null` if no filter set is active),\n   *   `oldValue` (the previous value of the filter set), and `sender` (the\n   *   `FilterHandle` instance that made the change).\n   */\n\n}\n\n/**\n * @event FilterHandle#change\n * @type {object}\n * @property {object} value - The new value of the filter set, or `null`\n *   if no filter set is active.\n * @property {object} oldValue - The previous value of the filter set.\n * @property {FilterHandle} sender - The `FilterHandle` instance that\n *   changed the value.\n */\n",
+    "import { diffSortedLists } from \"./util\";\n\nfunction naturalComparator(a, b) {\n  if (a === b) {\n    return 0;\n  } else if (a < b) {\n    return -1;\n  } else if (a > b) {\n    return 1;\n  }\n}\n\n/**\n * @private\n */\nexport default class FilterSet {\n  constructor() {\n    this.reset();\n  }\n\n  reset() {\n    // Key: handle ID, Value: array of selected keys, or null\n    this._handles = {};\n    // Key: key string, Value: count of handles that include it\n    this._keys = {};\n    this._value = null;\n    this._activeHandles = 0;\n  }\n\n  get value() {\n    return this._value;\n  }\n\n  update(handleId, keys) {\n    if (keys !== null) {\n      keys = keys.slice(0); // clone before sorting\n      keys.sort(naturalComparator);\n    }\n\n    let {added, removed} = diffSortedLists(this._handles[handleId], keys);\n    this._handles[handleId] = keys;\n\n    for (let i = 0; i < added.length; i++) {\n      this._keys[added[i]] = (this._keys[added[i]] || 0) + 1;\n    }\n    for (let i = 0; i < removed.length; i++) {\n      this._keys[removed[i]]--;\n    }\n\n    this._updateValue(keys);\n  }\n\n  /**\n   * @param {string[]} keys Sorted array of strings that indicate\n   * a superset of possible keys.\n   * @private\n   */\n  _updateValue(keys = this._allKeys) {\n    let handleCount = Object.keys(this._handles).length;\n    if (handleCount === 0) {\n      this._value = null;\n    } else {\n      this._value = [];\n      for (let i = 0; i < keys.length; i++) {\n        let count = this._keys[keys[i]];\n        if (count === handleCount) {\n          this._value.push(keys[i]);\n        }\n      }\n    }\n  }\n\n  clear(handleId) {\n    if (typeof(this._handles[handleId]) === \"undefined\") {\n      return;\n    }\n\n    let keys = this._handles[handleId];\n    if (!keys) {\n      keys = [];\n    }\n\n    for (let i = 0; i < keys.length; i++) {\n      this._keys[keys[i]]--;\n    }\n    delete this._handles[handleId];\n\n    this._updateValue();\n  }\n\n  get _allKeys() {\n    let allKeys = Object.keys(this._keys);\n    allKeys.sort(naturalComparator);\n    return allKeys;\n  }\n}\n",
+    "import Var from \"./var\";\n\n// Use a global so that multiple copies of crosstalk.js can be loaded and still\n// have groups behave as singletons across all copies.\nglobal.__crosstalk_groups = global.__crosstalk_groups || {};\nlet groups = global.__crosstalk_groups;\n\nexport default function group(groupName) {\n  if (groupName && typeof(groupName) === \"string\") {\n    if (!groups.hasOwnProperty(groupName)) {\n      groups[groupName] = new Group(groupName);\n    }\n    return groups[groupName];\n  } else if (typeof(groupName) === \"object\" && groupName._vars && groupName.var) {\n    // Appears to already be a group object\n    return groupName;\n  } else if (Array.isArray(groupName) &&\n      groupName.length == 1 &&\n      typeof(groupName[0]) === \"string\") {\n    return group(groupName[0]);\n  } else {\n    throw new Error(\"Invalid groupName argument\");\n  }\n}\n\nclass Group {\n  constructor(name) {\n    this.name = name;\n    this._vars = {};\n  }\n\n  var(name) {\n    if (!name || typeof(name) !== \"string\") {\n      throw new Error(\"Invalid var name\");\n    }\n\n    if (!this._vars.hasOwnProperty(name))\n      this._vars[name] = new Var(this, name);\n    return this._vars[name];\n  }\n\n  has(name) {\n    if (!name || typeof(name) !== \"string\") {\n      throw new Error(\"Invalid var name\");\n    }\n\n    return this._vars.hasOwnProperty(name);\n  }\n}\n",
+    "import group from \"./group\";\nimport { SelectionHandle } from \"./selection\";\nimport { FilterHandle } from \"./filter\";\nimport { bind } from \"./input\";\nimport \"./input_selectize\";\nimport \"./input_checkboxgroup\";\nimport \"./input_slider\";\n\nconst defaultGroup = group(\"default\");\n\nfunction var_(name) {\n  return defaultGroup.var(name);\n}\n\nfunction has(name) {\n  return defaultGroup.has(name);\n}\n\nif (global.Shiny) {\n  global.Shiny.addCustomMessageHandler(\"update-client-value\", function(message) {\n    if (typeof(message.group) === \"string\") {\n      group(message.group).var(message.name).set(message.value);\n    } else {\n      var_(message.name).set(message.value);\n    }\n  });\n}\n\nconst crosstalk = {\n  group: group,\n  var: var_,\n  has: has,\n  SelectionHandle: SelectionHandle,\n  FilterHandle: FilterHandle,\n  bind: bind\n};\n\n/**\n * @namespace crosstalk\n */\nexport default crosstalk;\nglobal.crosstalk = crosstalk;\n",
+    "let $ = global.jQuery;\n\nlet bindings = {};\n\nexport function register(reg) {\n  bindings[reg.className] = reg;\n  if (global.document && global.document.readyState !== \"complete\") {\n    $(() => {\n      bind();\n    });\n  } else if (global.document) {\n    setTimeout(bind, 100);\n  }\n}\n\nexport function bind() {\n  Object.keys(bindings).forEach(function(className) {\n    let binding = bindings[className];\n    $(\".\" + binding.className).not(\".crosstalk-input-bound\").each(function(i, el) {\n      bindInstance(binding, el);\n    });\n  });\n}\n\n// Escape jQuery identifier\nfunction $escape(val) {\n  return val.replace(/([!\"#$%&'()*+,./:;<=>?@[\\\\\\]^`{|}~])/g, \"\\\\$1\");\n}\n\nfunction bindEl(el) {\n  let $el = $(el);\n  Object.keys(bindings).forEach(function(className) {\n    if ($el.hasClass(className) && !$el.hasClass(\"crosstalk-input-bound\")) {\n      let binding = bindings[className];\n      bindInstance(binding, el);\n    }\n  });\n}\n\nfunction bindInstance(binding, el) {\n  let jsonEl = $(el).find(\"script[type='application/json'][data-for='\" + $escape(el.id) + \"']\");\n  let data = JSON.parse(jsonEl[0].innerText);\n\n  let instance = binding.factory(el, data);\n  $(el).data(\"crosstalk-instance\", instance);\n  $(el).addClass(\"crosstalk-input-bound\");\n}\n\nif (global.Shiny) {\n  let inputBinding = new global.Shiny.InputBinding();\n  let $ = global.jQuery;\n  $.extend(inputBinding, {\n    find: function(scope) {\n      return $(scope).find(\".crosstalk-input\");\n    },\n    initialize: function(el) {\n      if (!$(el).hasClass(\"crosstalk-input-bound\")) {\n        bindEl(el);\n      }\n    },\n    getId: function(el) {\n      return el.id;\n    },\n    getValue: function(el) {\n\n    },\n    setValue: function(el, value) {\n\n    },\n    receiveMessage: function(el, data) {\n\n    },\n    subscribe: function(el, callback) {\n      $(el).data(\"crosstalk-instance\").resume();\n    },\n    unsubscribe: function(el) {\n      $(el).data(\"crosstalk-instance\").suspend();\n    }\n  });\n  global.Shiny.inputBindings.register(inputBinding, \"crosstalk.inputBinding\");\n}\n",
+    "import * as input from \"./input\";\nimport { FilterHandle } from \"./filter\";\n\nlet $ = global.jQuery;\n\ninput.register({\n  className: \"crosstalk-input-checkboxgroup\",\n\n  factory: function(el, data) {\n    /*\n     * map: {\"groupA\": [\"keyA\", \"keyB\", ...], ...}\n     * group: \"ct-groupname\"\n     */\n    let ctHandle = new FilterHandle(data.group);\n\n    let lastKnownKeys;\n    let $el = $(el);\n    $el.on(\"change\", \"input[type='checkbox']\", function() {\n      let checked = $el.find(\"input[type='checkbox']:checked\");\n      if (checked.length === 0) {\n        lastKnownKeys = null;\n        ctHandle.clear();\n      } else {\n        let keys = {};\n        checked.each(function() {\n          data.map[this.value].forEach(function(key) {\n            keys[key] = true;\n          });\n        });\n        let keyArray = Object.keys(keys);\n        keyArray.sort();\n        lastKnownKeys = keyArray;\n        ctHandle.set(keyArray);\n      }\n    });\n\n    return {\n      suspend: function() {\n        ctHandle.clear();\n      },\n      resume: function() {\n        if (lastKnownKeys)\n          ctHandle.set(lastKnownKeys);\n      }\n    };\n  }\n});\n",
+    "import * as input from \"./input\";\nimport * as util from \"./util\";\nimport { FilterHandle } from \"./filter\";\n\nlet $ = global.jQuery;\n\ninput.register({\n  className: \"crosstalk-input-select\",\n\n  factory: function(el, data) {\n    /*\n     * items: {value: [...], label: [...]}\n     * map: {\"groupA\": [\"keyA\", \"keyB\", ...], ...}\n     * group: \"ct-groupname\"\n     */\n\n    let first = [{value: \"\", label: \"(All)\"}];\n    let items = util.dataframeToD3(data.items);\n    let opts = {\n      options: first.concat(items),\n      valueField: \"value\",\n      labelField: \"label\",\n      searchField: \"label\"\n    };\n\n    let select = $(el).find(\"select\")[0];\n\n    let selectize = $(select).selectize(opts)[0].selectize;\n\n    let ctHandle = new FilterHandle(data.group);\n\n    let lastKnownKeys;\n    selectize.on(\"change\", function() {\n      if (selectize.items.length === 0) {\n        lastKnownKeys = null;\n        ctHandle.clear();\n      } else {\n        let keys = {};\n        selectize.items.forEach(function(group) {\n          data.map[group].forEach(function(key) {\n            keys[key] = true;\n          });\n        });\n        let keyArray = Object.keys(keys);\n        keyArray.sort();\n        lastKnownKeys = keyArray;\n        ctHandle.set(keyArray);\n      }\n    });\n\n    return {\n      suspend: function() {\n        ctHandle.clear();\n      },\n      resume: function() {\n        if (lastKnownKeys)\n          ctHandle.set(lastKnownKeys);\n      }\n    };\n  }\n});\n",
+    "import * as input from \"./input\";\nimport { FilterHandle } from \"./filter\";\n\nlet $ = global.jQuery;\nlet strftime = global.strftime;\n\ninput.register({\n  className: \"crosstalk-input-slider\",\n\n  factory: function(el, data) {\n    /*\n     * map: {\"groupA\": [\"keyA\", \"keyB\", ...], ...}\n     * group: \"ct-groupname\"\n     */\n    let ctHandle = new FilterHandle(data.group);\n\n    let opts = {};\n    let $el = $(el).find(\"input\");\n    let dataType = $el.data(\"data-type\");\n    let timeFormat = $el.data(\"time-format\");\n    let round = $el.data(\"round\");\n    let timeFormatter;\n\n    // Set up formatting functions\n    if (dataType === \"date\") {\n      timeFormatter = strftime.utc();\n      opts.prettify = function(num) {\n        return timeFormatter(timeFormat, new Date(num));\n      };\n\n    } else if (dataType === \"datetime\") {\n      let timezone = $el.data(\"timezone\");\n      if (timezone)\n        timeFormatter = strftime.timezone(timezone);\n      else\n        timeFormatter = strftime;\n\n      opts.prettify = function(num) {\n        return timeFormatter(timeFormat, new Date(num));\n      };\n    } else if (dataType === \"number\") {\n      if (typeof round !== \"undefined\")\n        opts.prettify = function(num) {\n          let factor = Math.pow(10, round);\n          return Math.round(num * factor) / factor;\n        };\n    }\n\n    $el.ionRangeSlider(opts);\n\n    function getValue() {\n      let result = $el.data(\"ionRangeSlider\").result;\n\n      // Function for converting numeric value from slider to appropriate type.\n      let convert;\n      let dataType = $el.data(\"data-type\");\n      if (dataType === \"date\") {\n        convert = function(val) {\n          return formatDateUTC(new Date(+val));\n        };\n      } else if (dataType === \"datetime\") {\n        convert = function(val) {\n          // Convert ms to s\n          return +val / 1000;\n        };\n      } else {\n        convert = function(val) { return +val; };\n      }\n\n      if ($el.data(\"ionRangeSlider\").options.type === \"double\") {\n        return [convert(result.from), convert(result.to)];\n      } else {\n        return convert(result.from);\n      }\n    }\n\n    let lastKnownKeys = null;\n\n    $el.on(\"change.crosstalkSliderInput\", function(event) {\n      if (!$el.data(\"updating\") && !$el.data(\"animating\")) {\n        let [from, to] = getValue();\n        let keys = [];\n        for (let i = 0; i < data.values.length; i++) {\n          let val = data.values[i];\n          if (val >= from && val <= to) {\n            keys.push(data.keys[i]);\n          }\n        }\n        keys.sort();\n        ctHandle.set(keys);\n        lastKnownKeys = keys;\n      }\n    });\n\n\n    // let $el = $(el);\n    // $el.on(\"change\", \"input[type=\"checkbox\"]\", function() {\n    //   let checked = $el.find(\"input[type=\"checkbox\"]:checked\");\n    //   if (checked.length === 0) {\n    //     ctHandle.clear();\n    //   } else {\n    //     let keys = {};\n    //     checked.each(function() {\n    //       data.map[this.value].forEach(function(key) {\n    //         keys[key] = true;\n    //       });\n    //     });\n    //     let keyArray = Object.keys(keys);\n    //     keyArray.sort();\n    //     ctHandle.set(keyArray);\n    //   }\n    // });\n\n    return {\n      suspend: function() {\n        ctHandle.clear();\n      },\n      resume: function() {\n        if (lastKnownKeys)\n          ctHandle.set(lastKnownKeys);\n      }\n    };\n  }\n});\n\n\n// Convert a number to a string with leading zeros\nfunction padZeros(n, digits) {\n  let str = n.toString();\n  while (str.length < digits)\n    str = \"0\" + str;\n  return str;\n}\n\n// Given a Date object, return a string in yyyy-mm-dd format, using the\n// UTC date. This may be a day off from the date in the local time zone.\nfunction formatDateUTC(date) {\n  if (date instanceof Date) {\n    return date.getUTCFullYear() + \"-\" +\n           padZeros(date.getUTCMonth()+1, 2) + \"-\" +\n           padZeros(date.getUTCDate(), 2);\n\n  } else {\n    return null;\n  }\n}\n",
+    "import Events from \"./events\";\nimport grp from \"./group\";\nimport * as util from \"./util\";\n\n/**\n * Use this class to read and write (and listen for changes to) the selection\n * for a Crosstalk group. This is intended to be used for linked brushing.\n *\n * If two (or more) `SelectionHandle` instances in the same webpage share the\n * same group name, they will share the same state. Setting the selection using\n * one `SelectionHandle` instance will result in the `value` property instantly\n * changing across the others, and `\"change\"` event listeners on all instances\n * (including the one that initiated the sending) will fire.\n *\n * @param {string} [group] - The name of the Crosstalk group, or if none,\n *   null or undefined (or any other falsy value). This can be changed later\n *   via the [SelectionHandle#setGroup](#setGroup) method.\n * @param {Object} [extraInfo] - An object whose properties will be copied to\n *   the event object whenever an event is emitted.\n */\nexport class SelectionHandle {\n\n  constructor(group = null, extraInfo = null) {\n    this._eventRelay = new Events();\n    this._emitter = new util.SubscriptionTracker(this._eventRelay);\n\n    // Name of the group we're currently tracking, if any. Can change over time.\n    this._group = null;\n    // The Var we're currently tracking, if any. Can change over time.\n    this._var = null;\n    // The event handler subscription we currently have on var.on(\"change\").\n    this._varOnChangeSub = null;\n\n    this._extraInfo = util.extend({ sender: this }, extraInfo);\n\n    this.setGroup(group);\n  }\n\n  /**\n   * Changes the Crosstalk group membership of this SelectionHandle. The group\n   * being switched away from (if any) will not have its selection value\n   * modified as a result of calling `setGroup`, even if this handle was the\n   * most recent handle to set the selection of the group.\n   *\n   * The group being switched to (if any) will also not have its selection value\n   * modified as a result of calling `setGroup`. If you want to set the\n   * selection value of the new group, call `set` explicitly.\n   *\n   * @param {string} group - The name of the Crosstalk group, or null (or\n   *   undefined) to clear the group.\n   */\n  setGroup(group) {\n    // If group is unchanged, do nothing\n    if (this._group === group)\n      return;\n    // Treat null, undefined, and other falsy values the same\n    if (!this._group && !group)\n      return;\n\n    if (this._var) {\n      this._var.off(\"change\", this._varOnChangeSub);\n      this._var = null;\n      this._varOnChangeSub = null;\n    }\n\n    this._group = group;\n\n    if (group) {\n      this._var = grp(group).var(\"selection\");\n      let sub = this._var.on(\"change\", (e) => {\n        this._eventRelay.trigger(\"change\", e, this);\n      });\n      this._varOnChangeSub = sub;\n    }\n  }\n\n  /**\n   * Retrieves the current selection for the group represented by this\n   * `SelectionHandle`.\n   *\n   * - If no selection is active, then this value will be falsy.\n   * - If a selection is active, but no data points are selected, then this\n   *   value will be an empty array.\n   * - If a selection is active, and data points are selected, then the keys\n   *   of the selected data points will be present in the array.\n   */\n  get value() {\n    return this._var ? this._var.get() : null;\n  }\n\n  /**\n   * Combines the given `extraInfo` (if any) with the handle's default\n   * `_extraInfo` (if any).\n   * @private\n   */\n  _mergeExtraInfo(extraInfo) {\n    // Important incidental effect: shallow clone is returned\n    return util.extend({},\n      this._extraInfo ? this._extraInfo : null,\n      extraInfo ? extraInfo : null);\n  }\n\n  /**\n   * Overwrites the current selection for the group, and raises the `\"change\"`\n   * event among all of the group's '`SelectionHandle` instances (including\n   * this one).\n   *\n   * @fires SelectionHandle#change\n   * @param {string[]} selectedKeys - Falsy, empty array, or array of keys (see\n   *   {@link SelectionHandle#value}).\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any options that were\n   *   passed into the `SelectionHandle` constructor).\n   */\n  set(selectedKeys, extraInfo) {\n    if (this._var)\n      this._var.set(selectedKeys, this._mergeExtraInfo(extraInfo));\n  }\n\n  /**\n   * Overwrites the current selection for the group, and raises the `\"change\"`\n   * event among all of the group's '`SelectionHandle` instances (including\n   * this one).\n   *\n   * @fires SelectionHandle#change\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any that were passed\n   *   into the `SelectionHandle` constructor).\n   */\n  clear(extraInfo) {\n    if (this._var)\n      this.set(void 0, this._mergeExtraInfo(extraInfo));\n  }\n\n  /**\n   * Subscribes to events on this `SelectionHandle`.\n   *\n   * @param {string} eventType - Indicates the type of events to listen to.\n   *   Currently, only `\"change\"` is supported.\n   * @param {SelectionHandle~listener} listener - The callback function that\n   *   will be invoked when the event occurs.\n   * @return {string} - A token to pass to {@link SelectionHandle#off} to cancel\n   *   this subscription.\n   */\n  on(eventType, listener) {\n    return this._emitter.on(eventType, listener);\n  }\n\n  /**\n   * Cancels event subscriptions created by {@link SelectionHandle#on}.\n   *\n   * @param {string} eventType - The type of event to unsubscribe.\n   * @param {string|SelectionHandle~listener} listener - Either the callback\n   *   function previously passed into {@link SelectionHandle#on}, or the\n   *   string that was returned from {@link SelectionHandle#on}.\n   */\n  off(eventType, listener) {\n    return this._emitter.off(eventType, listener);\n  }\n\n  /**\n   * Shuts down the `SelectionHandle` object.\n   *\n   * Removes all event listeners that were added through this handle.\n   */\n  close() {\n    this._emitter.removeAllListeners();\n    this.setGroup(null);\n  }\n}\n\n/**\n * @callback SelectionHandle~listener\n * @param {Object} event - An object containing details of the event. For\n *   `\"change\"` events, this includes the properties `value` (the new\n *   value of the selection, or `undefined` if no selection is active),\n *   `oldValue` (the previous value of the selection), and `sender` (the\n *   `SelectionHandle` instance that made the change).\n */\n\n/**\n * @event SelectionHandle#change\n * @type {object}\n * @property {object} value - The new value of the selection, or `undefined`\n *   if no selection is active.\n * @property {object} oldValue - The previous value of the selection.\n * @property {SelectionHandle} sender - The `SelectionHandle` instance that\n *   changed the value.\n */\n",
+    "export function extend(target, ...sources) {\n  for (let i = 0; i < sources.length; i++) {\n    let src = sources[i];\n    if (typeof(src) === \"undefined\" || src === null)\n      continue;\n\n    for (let key in src) {\n      if (src.hasOwnProperty(key)) {\n        target[key] = src[key];\n      }\n    }\n  }\n  return target;\n}\n\nexport function checkSorted(list) {\n  for (let i = 1; i < list.length; i++) {\n    if (list[i] <= list[i-1]) {\n      throw new Error(\"List is not sorted or contains duplicate\");\n    }\n  }\n}\n\nexport function diffSortedLists(a, b) {\n  let i_a = 0;\n  let i_b = 0;\n\n  if (!a) a = [];\n  if (!b) b = [];\n\n  let a_only = [];\n  let b_only = [];\n\n  checkSorted(a);\n  checkSorted(b);\n\n  while (i_a < a.length && i_b < b.length) {\n    if (a[i_a] === b[i_b]) {\n      i_a++;\n      i_b++;\n    } else if (a[i_a] < b[i_b]) {\n      a_only.push(a[i_a++]);\n    } else {\n      b_only.push(b[i_b++]);\n    }\n  }\n\n  if (i_a < a.length)\n    a_only = a_only.concat(a.slice(i_a));\n  if (i_b < b.length)\n    b_only = b_only.concat(b.slice(i_b));\n  return {\n    removed: a_only,\n    added: b_only\n  };\n}\n\n// Convert from wide: { colA: [1,2,3], colB: [4,5,6], ... }\n// to long: [ {colA: 1, colB: 4}, {colA: 2, colB: 5}, ... ]\nexport function dataframeToD3(df) {\n  let names = [];\n  let length;\n  for (let name in df) {\n    if (df.hasOwnProperty(name))\n      names.push(name);\n    if (typeof(df[name]) !== \"object\" || typeof(df[name].length) === \"undefined\") {\n      throw new Error(\"All fields must be arrays\");\n    } else if (typeof(length) !== \"undefined\" && length !== df[name].length) {\n      throw new Error(\"All fields must be arrays of the same length\");\n    }\n    length = df[name].length;\n  }\n  let results = [];\n  let item;\n  for (let row = 0; row < length; row++) {\n    item = {};\n    for (let col = 0; col < names.length; col++) {\n      item[names[col]] = df[names[col]][row];\n    }\n    results.push(item);\n  }\n  return results;\n}\n\n/**\n * Keeps track of all event listener additions/removals and lets all active\n * listeners be removed with a single operation.\n *\n * @private\n */\nexport class SubscriptionTracker {\n  constructor(emitter) {\n    this._emitter = emitter;\n    this._subs = {};\n  }\n\n  on(eventType, listener) {\n    let sub = this._emitter.on(eventType, listener);\n    this._subs[sub] = eventType;\n    return sub;\n  }\n\n  off(eventType, listener) {\n    let sub = this._emitter.off(eventType, listener);\n    if (sub) {\n      delete this._subs[sub];\n    }\n    return sub;\n  }\n\n  removeAllListeners() {\n    let current_subs = this._subs;\n    this._subs = {};\n    Object.keys(current_subs).forEach((sub) => {\n      this._emitter.off(current_subs[sub], sub);\n    });\n  }\n}\n",
+    "import Events from \"./events\";\n\nexport default class Var {\n  constructor(group, name, /*optional*/ value) {\n    this._group = group;\n    this._name = name;\n    this._value = value;\n    this._events = new Events();\n  }\n\n  get() {\n    return this._value;\n  }\n\n  set(value, /*optional*/ event) {\n    if (this._value === value) {\n      // Do nothing; the value hasn't changed\n      return;\n    }\n    let oldValue = this._value;\n    this._value = value;\n    // Alert JavaScript listeners that the value has changed\n    let evt = {};\n    if (event && typeof(event) === \"object\") {\n      for (let k in event) {\n        if (event.hasOwnProperty(k))\n          evt[k] = event[k];\n      }\n    }\n    evt.oldValue = oldValue;\n    evt.value = value;\n    this._events.trigger(\"change\", evt, this);\n\n    // TODO: Make this extensible, to let arbitrary back-ends know that\n    // something has changed\n    if (global.Shiny && global.Shiny.onInputChange) {\n      global.Shiny.onInputChange(\n        \".clientValue-\" +\n          (this._group.name !== null ? this._group.name + \"-\" : \"\") +\n          this._name,\n        typeof(value) === \"undefined\" ? null : value\n      );\n    }\n  }\n\n  on(eventType, listener) {\n    return this._events.on(eventType, listener);\n  }\n\n  off(eventType, listener) {\n    return this._events.off(eventType, listener);\n  }\n}\n"
+  ]
+}
\ No newline at end of file
diff --git a/docs/site_libs/crosstalk-1.2.0/js/crosstalk.min.js b/docs/site_libs/crosstalk-1.2.0/js/crosstalk.min.js
new file mode 100644
index 00000000..b7ec0ac9
--- /dev/null
+++ b/docs/site_libs/crosstalk-1.2.0/js/crosstalk.min.js
@@ -0,0 +1,2 @@
+!function o(u,a,l){function s(n,e){if(!a[n]){if(!u[n]){var t="function"==typeof require&&require;if(!e&&t)return t(n,!0);if(f)return f(n,!0);var r=new Error("Cannot find module '"+n+"'");throw r.code="MODULE_NOT_FOUND",r}var i=a[n]={exports:{}};u[n][0].call(i.exports,function(e){var t=u[n][1][e];return s(t||e)},i,i.exports,o,u,a,l)}return a[n].exports}for(var f="function"==typeof require&&require,e=0;e<l.length;e++)s(l[e]);return s}({1:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r=function(){function r(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(e,t,n){return t&&r(e.prototype,t),n&&r(e,n),e}}();var i=function(){function e(){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this._types={},this._seq=0}return r(e,[{key:"on",value:function(e,t){var n=this._types[e];n||(n=this._types[e]={});var r="sub"+this._seq++;return n[r]=t,r}},{key:"off",value:function(e,t){var n=this._types[e];if("function"==typeof t){for(var r in n)if(n.hasOwnProperty(r)&&n[r]===t)return delete n[r],r;return!1}if("string"==typeof t)return!(!n||!n[t])&&(delete n[t],t);throw new Error("Unexpected type for listener")}},{key:"trigger",value:function(e,t,n){var r=this._types[e];for(var i in r)r.hasOwnProperty(i)&&r[i].call(n,t)}}]),e}();n.default=i},{}],2:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0}),n.FilterHandle=void 0;var r=function(){function r(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(e,t,n){return t&&r(e.prototype,t),n&&r(e,n),e}}(),i=l(e("./events")),o=l(e("./filterset")),u=l(e("./group")),a=function(e){{if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)Object.prototype.hasOwnProperty.call(e,n)&&(t[n]=e[n]);return t.default=e,t}}(e("./util"));function l(e){return e&&e.__esModule?e:{default:e}}var s=1;n.FilterHandle=function(){function n(e,t){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,n),this._eventRelay=new i.default,this._emitter=new a.SubscriptionTracker(this._eventRelay),this._group=null,this._filterSet=null,this._filterVar=null,this._varOnChangeSub=null,this._extraInfo=a.extend({sender:this},t),this._id="filter"+s++,this.setGroup(e)}return r(n,[{key:"setGroup",value:function(e){var t,n,r=this;if(this._group!==e&&((this._group||e)&&(this._filterVar&&(this._filterVar.off("change",this._varOnChangeSub),this.clear(),this._varOnChangeSub=null,this._filterVar=null,this._filterSet=null),this._group=e))){e=(0,u.default)(e),this._filterSet=(t=e.var("filterset"),(n=t.get())||(n=new o.default,t.set(n)),n),this._filterVar=(0,u.default)(e).var("filter");var i=this._filterVar.on("change",function(e){r._eventRelay.trigger("change",e,r)});this._varOnChangeSub=i}}},{key:"_mergeExtraInfo",value:function(e){return a.extend({},this._extraInfo?this._extraInfo:null,e||null)}},{key:"close",value:function(){this._emitter.removeAllListeners(),this.clear(),this.setGroup(null)}},{key:"clear",value:function(e){this._filterSet&&(this._filterSet.clear(this._id),this._onChange(e))}},{key:"set",value:function(e,t){this._filterSet&&(this._filterSet.update(this._id,e),this._onChange(t))}},{key:"on",value:function(e,t){return this._emitter.on(e,t)}},{key:"off",value:function(e,t){return this._emitter.off(e,t)}},{key:"_onChange",value:function(e){this._filterSet&&this._filterVar.set(this._filterSet.value,this._mergeExtraInfo(e))}},{key:"filteredKeys",get:function(){return this._filterSet?this._filterSet.value:null}}]),n}()},{"./events":1,"./filterset":3,"./group":4,"./util":11}],3:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0});var r=function(){function r(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(e,t,n){return t&&r(e.prototype,t),n&&r(e,n),e}}(),a=e("./util");function l(e,t){return e===t?0:e<t?-1:t<e?1:void 0}var i=function(){function e(){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,e),this.reset()}return r(e,[{key:"reset",value:function(){this._handles={},this._keys={},this._value=null,this._activeHandles=0}},{key:"update",value:function(e,t){null!==t&&(t=t.slice(0)).sort(l);var n=(0,a.diffSortedLists)(this._handles[e],t),r=n.added,i=n.removed;this._handles[e]=t;for(var o=0;o<r.length;o++)this._keys[r[o]]=(this._keys[r[o]]||0)+1;for(var u=0;u<i.length;u++)this._keys[i[u]]--;this._updateValue(t)}},{key:"_updateValue",value:function(){var e=0<arguments.length&&void 0!==arguments[0]?arguments[0]:this._allKeys,t=Object.keys(this._handles).length;if(0===t)this._value=null;else{this._value=[];for(var n=0;n<e.length;n++){this._keys[e[n]]===t&&this._value.push(e[n])}}}},{key:"clear",value:function(e){if(void 0!==this._handles[e]){var t=this._handles[e];t||(t=[]);for(var n=0;n<t.length;n++)this._keys[t[n]]--;delete this._handles[e],this._updateValue()}}},{key:"value",get:function(){return this._value}},{key:"_allKeys",get:function(){var e=Object.keys(this._keys);return e.sort(l),e}}]),e}();n.default=i},{"./util":11}],4:[function(l,e,s){(function(e){"use strict";Object.defineProperty(s,"__esModule",{value:!0});var n=function(){function r(e,t){for(var n=0;n<t.length;n++){var r=t[n];r.enumerable=r.enumerable||!1,r.configurable=!0,"value"in r&&(r.writable=!0),Object.defineProperty(e,r.key,r)}}return function(e,t,n){return t&&r(e.prototype,t),n&&r(e,n),e}}(),r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(e){return typeof e}:function(e){return e&&"function"==typeof Symbol&&e.constructor===Symbol&&e!==Symbol.prototype?"symbol":typeof e};s.default=function e(t){{if(t&&"string"==typeof t)return u.hasOwnProperty(t)||(u[t]=new a(t)),u[t];if("object"===(void 0===t?"undefined":r(t))&&t._vars&&t.var)return t;if(Array.isArray(t)&&1==t.length&&"string"==typeof t[0])return e(t[0]);throw new Error("Invalid groupName argument")}};var t,i=l("./var"),o=(t=i)&&t.__esModule?t:{default:t};e.__crosstalk_groups=e.__crosstalk_groups||{};var u=e.__crosstalk_groups;var a=function(){function t(e){!function(e,t){if(!(e instanceof t))throw new TypeError("Cannot call a class as a function")}(this,t),this.name=e,this._vars={}}return n(t,[{key:"var",value:function(e){if(!e||"string"!=typeof e)throw new Error("Invalid var name");return this._vars.hasOwnProperty(e)||(this._vars[e]=new o.default(this,e)),this._vars[e]}},{key:"has",value:function(e){if(!e||"string"!=typeof e)throw new Error("Invalid var name");return this._vars.hasOwnProperty(e)}}]),t}()}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./var":12}],5:[function(f,e,c){(function(e){"use strict";Object.defineProperty(c,"__esModule",{value:!0});var t,n=f("./group"),r=(t=n)&&t.__esModule?t:{default:t},i=f("./selection"),o=f("./filter"),u=f("./input");f("./input_selectize"),f("./input_checkboxgroup"),f("./input_slider");var a=(0,r.default)("default");function l(e){return a.var(e)}e.Shiny&&e.Shiny.addCustomMessageHandler("update-client-value",function(e){"string"==typeof e.group?(0,r.default)(e.group).var(e.name).set(e.value):l(e.name).set(e.value)});var s={group:r.default,var:l,has:function(e){return a.has(e)},SelectionHandle:i.SelectionHandle,FilterHandle:o.FilterHandle,bind:u.bind};c.default=s,e.crosstalk=s}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./filter":2,"./group":4,"./input":6,"./input_checkboxgroup":7,"./input_selectize":8,"./input_slider":9,"./selection":10}],6:[function(e,t,a){(function(t){"use strict";Object.defineProperty(a,"__esModule",{value:!0}),a.register=function(e){r[e.className]=e,t.document&&"complete"!==t.document.readyState?o(function(){n()}):t.document&&setTimeout(n,100)},a.bind=n;var o=t.jQuery,r={};function n(){Object.keys(r).forEach(function(e){var n=r[e];o("."+n.className).not(".crosstalk-input-bound").each(function(e,t){i(n,t)})})}function i(e,t){var n=o(t).find("script[type='application/json'][data-for='"+t.id.replace(/([!"#$%&'()*+,./:;<=>?@[\\\]^`{|}~])/g,"\\$1")+"']"),r=JSON.parse(n[0].innerText),i=e.factory(t,r);o(t).data("crosstalk-instance",i),o(t).addClass("crosstalk-input-bound")}if(t.Shiny){var e=new t.Shiny.InputBinding,u=t.jQuery;u.extend(e,{find:function(e){return u(e).find(".crosstalk-input")},initialize:function(e){var t,n;u(e).hasClass("crosstalk-input-bound")||(n=o(t=e),Object.keys(r).forEach(function(e){n.hasClass(e)&&!n.hasClass("crosstalk-input-bound")&&i(r[e],t)}))},getId:function(e){return e.id},getValue:function(e){},setValue:function(e,t){},receiveMessage:function(e,t){},subscribe:function(e,t){u(e).data("crosstalk-instance").resume()},unsubscribe:function(e){u(e).data("crosstalk-instance").suspend()}}),t.Shiny.inputBindings.register(e,"crosstalk.inputBinding")}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{}],7:[function(r,e,t){(function(e){"use strict";var t=function(e){{if(e&&e.__esModule)return e;var t={};if(null!=e)for(var n in e)Object.prototype.hasOwnProperty.call(e,n)&&(t[n]=e[n]);return t.default=e,t}}(r("./input")),n=r("./filter");var a=e.jQuery;t.register({className:"crosstalk-input-checkboxgroup",factory:function(e,r){var i=new n.FilterHandle(r.group),o=void 0,u=a(e);return 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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}return e})()","export default class Events {\n  constructor() {\n    this._types = {};\n    this._seq = 0;\n  }\n\n  on(eventType, listener) {\n    let subs = this._types[eventType];\n    if (!subs) {\n      subs = this._types[eventType] = {};\n    }\n    let sub = \"sub\" + (this._seq++);\n    subs[sub] = listener;\n    return sub;\n  }\n\n  // Returns false if no match, or string for sub name if matched\n  off(eventType, listener) {\n    let subs = this._types[eventType];\n    if (typeof(listener) === \"function\") {\n      for (let key in subs) {\n        if (subs.hasOwnProperty(key)) {\n          if (subs[key] === listener) {\n            delete subs[key];\n            return key;\n          }\n        }\n      }\n      return false;\n    } else if (typeof(listener) === \"string\") {\n      if (subs && subs[listener]) {\n        delete subs[listener];\n        return listener;\n      }\n      return false;\n    } else {\n      throw new Error(\"Unexpected type for listener\");\n    }\n  }\n\n  trigger(eventType, arg, thisObj) {\n    let subs = this._types[eventType];\n    for (let key in subs) {\n      if (subs.hasOwnProperty(key)) {\n        subs[key].call(thisObj, arg);\n      }\n    }\n  }\n}\n","import Events from \"./events\";\nimport FilterSet from \"./filterset\";\nimport grp from \"./group\";\nimport * as util from \"./util\";\n\nfunction getFilterSet(group) {\n  let fsVar = group.var(\"filterset\");\n  let result = fsVar.get();\n  if (!result) {\n    result = new FilterSet();\n    fsVar.set(result);\n  }\n  return result;\n}\n\nlet id = 1;\nfunction nextId() {\n  return id++;\n}\n\n/**\n * Use this class to contribute to, and listen for changes to, the filter set\n * for the given group of widgets. Filter input controls should create one\n * `FilterHandle` and only call {@link FilterHandle#set}. Output widgets that\n * wish to displayed filtered data should create one `FilterHandle` and use\n * the {@link FilterHandle#filteredKeys} property and listen for change\n * events.\n *\n * If two (or more) `FilterHandle` instances in the same webpage share the\n * same group name, they will contribute to a single \"filter set\". Each\n * `FilterHandle` starts out with a `null` value, which means they take\n * nothing away from the set of data that should be shown. To make a\n * `FilterHandle` actually remove data from the filter set, set its value to\n * an array of keys which should be displayed. Crosstalk will aggregate the\n * various key arrays by finding their intersection; only keys that are\n * present in all non-null filter handles are considered part of the filter\n * set.\n *\n * @param {string} [group] - The name of the Crosstalk group, or if none,\n *   null or undefined (or any other falsy value). This can be changed later\n *   via the {@link FilterHandle#setGroup} method.\n * @param {Object} [extraInfo] - An object whose properties will be copied to\n *   the event object whenever an event is emitted.\n */\nexport class FilterHandle {\n  constructor(group, extraInfo) {\n    this._eventRelay = new Events();\n    this._emitter = new util.SubscriptionTracker(this._eventRelay);\n\n    // Name of the group we're currently tracking, if any. Can change over time.\n    this._group = null;\n    // The filterSet that we're tracking, if any. Can change over time.\n    this._filterSet = null;\n    // The Var we're currently tracking, if any. Can change over time.\n    this._filterVar = null;\n    // The event handler subscription we currently have on var.on(\"change\").\n    this._varOnChangeSub = null;\n\n    this._extraInfo = util.extend({ sender: this }, extraInfo);\n\n    this._id = \"filter\" + nextId();\n\n    this.setGroup(group);\n  }\n\n  /**\n   * Changes the Crosstalk group membership of this FilterHandle. If `set()` was\n   * previously called on this handle, switching groups will clear those keys\n   * from the old group's filter set. These keys will not be applied to the new\n   * group's filter set either. In other words, `setGroup()` effectively calls\n   * `clear()` before switching groups.\n   *\n   * @param {string} group - The name of the Crosstalk group, or null (or\n   *   undefined) to clear the group.\n   */\n  setGroup(group) {\n    // If group is unchanged, do nothing\n    if (this._group === group)\n      return;\n    // Treat null, undefined, and other falsy values the same\n    if (!this._group && !group)\n      return;\n\n    if (this._filterVar) {\n      this._filterVar.off(\"change\", this._varOnChangeSub);\n      this.clear();\n      this._varOnChangeSub = null;\n      this._filterVar = null;\n      this._filterSet = null;\n    }\n\n    this._group = group;\n\n    if (group) {\n      group = grp(group);\n      this._filterSet = getFilterSet(group);\n      this._filterVar = grp(group).var(\"filter\");\n      let sub = this._filterVar.on(\"change\", (e) => {\n        this._eventRelay.trigger(\"change\", e, this);\n      });\n      this._varOnChangeSub = sub;\n    }\n  }\n\n  /**\n   * Combine the given `extraInfo` (if any) with the handle's default\n   * `_extraInfo` (if any).\n   * @private\n   */\n  _mergeExtraInfo(extraInfo) {\n    return util.extend({},\n      this._extraInfo ? this._extraInfo : null,\n      extraInfo ? extraInfo : null);\n  }\n\n  /**\n   * Close the handle. This clears this handle's contribution to the filter set,\n   * and unsubscribes all event listeners.\n   */\n  close() {\n    this._emitter.removeAllListeners();\n    this.clear();\n    this.setGroup(null);\n  }\n\n  /**\n   * Clear this handle's contribution to the filter set.\n   *\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any options that were\n   *   passed into the `FilterHandle` constructor).\n   * \n   * @fires FilterHandle#change\n   */\n  clear(extraInfo) {\n    if (!this._filterSet)\n      return;\n    this._filterSet.clear(this._id);\n    this._onChange(extraInfo);\n  }\n\n  /**\n   * Set this handle's contribution to the filter set. This array should consist\n   * of the keys of the rows that _should_ be displayed; any keys that are not\n   * present in the array will be considered _filtered out_. Note that multiple\n   * `FilterHandle` instances in the group may each contribute an array of keys,\n   * and only those keys that appear in _all_ of the arrays make it through the\n   * filter.\n   *\n   * @param {string[]} keys - Empty array, or array of keys. To clear the\n   *   filter, don't pass an empty array; instead, use the\n   *   {@link FilterHandle#clear} method.\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any options that were\n   *   passed into the `FilterHandle` constructor).\n   * \n   * @fires FilterHandle#change\n   */\n  set(keys, extraInfo) {\n    if (!this._filterSet)\n      return;\n    this._filterSet.update(this._id, keys);\n    this._onChange(extraInfo);\n  }\n\n  /**\n   * @return {string[]|null} - Either: 1) an array of keys that made it through\n   *   all of the `FilterHandle` instances, or, 2) `null`, which means no filter\n   *   is being applied (all data should be displayed).\n   */\n  get filteredKeys() {\n    return this._filterSet ? this._filterSet.value : null;\n  }\n\n  /**\n   * Subscribe to events on this `FilterHandle`.\n   *\n   * @param {string} eventType - Indicates the type of events to listen to.\n   *   Currently, only `\"change\"` is supported.\n   * @param {FilterHandle~listener} listener - The callback function that\n   *   will be invoked when the event occurs.\n   * @return {string} - A token to pass to {@link FilterHandle#off} to cancel\n   *   this subscription.\n   */\n  on(eventType, listener) {\n    return this._emitter.on(eventType, listener);\n  }\n\n  /**\n   * Cancel event subscriptions created by {@link FilterHandle#on}.\n   *\n   * @param {string} eventType - The type of event to unsubscribe.\n   * @param {string|FilterHandle~listener} listener - Either the callback\n   *   function previously passed into {@link FilterHandle#on}, or the\n   *   string that was returned from {@link FilterHandle#on}.\n   */\n  off(eventType, listener) {\n    return this._emitter.off(eventType, listener);\n  }\n\n  _onChange(extraInfo) {\n    if (!this._filterSet)\n      return;\n    this._filterVar.set(this._filterSet.value, this._mergeExtraInfo(extraInfo));\n  }\n\n  /**\n   * @callback FilterHandle~listener\n   * @param {Object} event - An object containing details of the event. For\n   *   `\"change\"` events, this includes the properties `value` (the new\n   *   value of the filter set, or `null` if no filter set is active),\n   *   `oldValue` (the previous value of the filter set), and `sender` (the\n   *   `FilterHandle` instance that made the change).\n   */\n\n}\n\n/**\n * @event FilterHandle#change\n * @type {object}\n * @property {object} value - The new value of the filter set, or `null`\n *   if no filter set is active.\n * @property {object} oldValue - The previous value of the filter set.\n * @property {FilterHandle} sender - The `FilterHandle` instance that\n *   changed the value.\n */\n","import { diffSortedLists } from \"./util\";\n\nfunction naturalComparator(a, b) {\n  if (a === b) {\n    return 0;\n  } else if (a < b) {\n    return -1;\n  } else if (a > b) {\n    return 1;\n  }\n}\n\n/**\n * @private\n */\nexport default class FilterSet {\n  constructor() {\n    this.reset();\n  }\n\n  reset() {\n    // Key: handle ID, Value: array of selected keys, or null\n    this._handles = {};\n    // Key: key string, Value: count of handles that include it\n    this._keys = {};\n    this._value = null;\n    this._activeHandles = 0;\n  }\n\n  get value() {\n    return this._value;\n  }\n\n  update(handleId, keys) {\n    if (keys !== null) {\n      keys = keys.slice(0); // clone before sorting\n      keys.sort(naturalComparator);\n    }\n\n    let {added, removed} = diffSortedLists(this._handles[handleId], keys);\n    this._handles[handleId] = keys;\n\n    for (let i = 0; i < added.length; i++) {\n      this._keys[added[i]] = (this._keys[added[i]] || 0) + 1;\n    }\n    for (let i = 0; i < removed.length; i++) {\n      this._keys[removed[i]]--;\n    }\n\n    this._updateValue(keys);\n  }\n\n  /**\n   * @param {string[]} keys Sorted array of strings that indicate\n   * a superset of possible keys.\n   * @private\n   */\n  _updateValue(keys = this._allKeys) {\n    let handleCount = Object.keys(this._handles).length;\n    if (handleCount === 0) {\n      this._value = null;\n    } else {\n      this._value = [];\n      for (let i = 0; i < keys.length; i++) {\n        let count = this._keys[keys[i]];\n        if (count === handleCount) {\n          this._value.push(keys[i]);\n        }\n      }\n    }\n  }\n\n  clear(handleId) {\n    if (typeof(this._handles[handleId]) === \"undefined\") {\n      return;\n    }\n\n    let keys = this._handles[handleId];\n    if (!keys) {\n      keys = [];\n    }\n\n    for (let i = 0; i < keys.length; i++) {\n      this._keys[keys[i]]--;\n    }\n    delete this._handles[handleId];\n\n    this._updateValue();\n  }\n\n  get _allKeys() {\n    let allKeys = Object.keys(this._keys);\n    allKeys.sort(naturalComparator);\n    return allKeys;\n  }\n}\n","import Var from \"./var\";\n\n// Use a global so that multiple copies of crosstalk.js can be loaded and still\n// have groups behave as singletons across all copies.\nglobal.__crosstalk_groups = global.__crosstalk_groups || {};\nlet groups = global.__crosstalk_groups;\n\nexport default function group(groupName) {\n  if (groupName && typeof(groupName) === \"string\") {\n    if (!groups.hasOwnProperty(groupName)) {\n      groups[groupName] = new Group(groupName);\n    }\n    return groups[groupName];\n  } else if (typeof(groupName) === \"object\" && groupName._vars && groupName.var) {\n    // Appears to already be a group object\n    return groupName;\n  } else if (Array.isArray(groupName) &&\n      groupName.length == 1 &&\n      typeof(groupName[0]) === \"string\") {\n    return group(groupName[0]);\n  } else {\n    throw new Error(\"Invalid groupName argument\");\n  }\n}\n\nclass Group {\n  constructor(name) {\n    this.name = name;\n    this._vars = {};\n  }\n\n  var(name) {\n    if (!name || typeof(name) !== \"string\") {\n      throw new Error(\"Invalid var name\");\n    }\n\n    if (!this._vars.hasOwnProperty(name))\n      this._vars[name] = new Var(this, name);\n    return this._vars[name];\n  }\n\n  has(name) {\n    if (!name || typeof(name) !== \"string\") {\n      throw new Error(\"Invalid var name\");\n    }\n\n    return this._vars.hasOwnProperty(name);\n  }\n}\n","import group from \"./group\";\nimport { SelectionHandle } from \"./selection\";\nimport { FilterHandle } from \"./filter\";\nimport { bind } from \"./input\";\nimport \"./input_selectize\";\nimport \"./input_checkboxgroup\";\nimport \"./input_slider\";\n\nconst defaultGroup = group(\"default\");\n\nfunction var_(name) {\n  return defaultGroup.var(name);\n}\n\nfunction has(name) {\n  return defaultGroup.has(name);\n}\n\nif (global.Shiny) {\n  global.Shiny.addCustomMessageHandler(\"update-client-value\", function(message) {\n    if (typeof(message.group) === \"string\") {\n      group(message.group).var(message.name).set(message.value);\n    } else {\n      var_(message.name).set(message.value);\n    }\n  });\n}\n\nconst crosstalk = {\n  group: group,\n  var: var_,\n  has: has,\n  SelectionHandle: SelectionHandle,\n  FilterHandle: FilterHandle,\n  bind: bind\n};\n\n/**\n * @namespace crosstalk\n */\nexport default crosstalk;\nglobal.crosstalk = crosstalk;\n","let $ = global.jQuery;\n\nlet bindings = {};\n\nexport function register(reg) {\n  bindings[reg.className] = reg;\n  if (global.document && global.document.readyState !== \"complete\") {\n    $(() => {\n      bind();\n    });\n  } else if (global.document) {\n    setTimeout(bind, 100);\n  }\n}\n\nexport function bind() {\n  Object.keys(bindings).forEach(function(className) {\n    let binding = bindings[className];\n    $(\".\" + binding.className).not(\".crosstalk-input-bound\").each(function(i, el) {\n      bindInstance(binding, el);\n    });\n  });\n}\n\n// Escape jQuery identifier\nfunction $escape(val) {\n  return val.replace(/([!\"#$%&'()*+,./:;<=>?@[\\\\\\]^`{|}~])/g, \"\\\\$1\");\n}\n\nfunction bindEl(el) {\n  let $el = $(el);\n  Object.keys(bindings).forEach(function(className) {\n    if ($el.hasClass(className) && !$el.hasClass(\"crosstalk-input-bound\")) {\n      let binding = bindings[className];\n      bindInstance(binding, el);\n    }\n  });\n}\n\nfunction bindInstance(binding, el) {\n  let jsonEl = $(el).find(\"script[type='application/json'][data-for='\" + $escape(el.id) + \"']\");\n  let data = JSON.parse(jsonEl[0].innerText);\n\n  let instance = binding.factory(el, data);\n  $(el).data(\"crosstalk-instance\", instance);\n  $(el).addClass(\"crosstalk-input-bound\");\n}\n\nif (global.Shiny) {\n  let inputBinding = new global.Shiny.InputBinding();\n  let $ = global.jQuery;\n  $.extend(inputBinding, {\n    find: function(scope) {\n      return $(scope).find(\".crosstalk-input\");\n    },\n    initialize: function(el) {\n      if (!$(el).hasClass(\"crosstalk-input-bound\")) {\n        bindEl(el);\n      }\n    },\n    getId: function(el) {\n      return el.id;\n    },\n    getValue: function(el) {\n\n    },\n    setValue: function(el, value) {\n\n    },\n    receiveMessage: function(el, data) {\n\n    },\n    subscribe: function(el, callback) {\n      $(el).data(\"crosstalk-instance\").resume();\n    },\n    unsubscribe: function(el) {\n      $(el).data(\"crosstalk-instance\").suspend();\n    }\n  });\n  global.Shiny.inputBindings.register(inputBinding, \"crosstalk.inputBinding\");\n}\n","import * as input from \"./input\";\nimport { FilterHandle } from \"./filter\";\n\nlet $ = global.jQuery;\n\ninput.register({\n  className: \"crosstalk-input-checkboxgroup\",\n\n  factory: function(el, data) {\n    /*\n     * map: {\"groupA\": [\"keyA\", \"keyB\", ...], ...}\n     * group: \"ct-groupname\"\n     */\n    let ctHandle = new FilterHandle(data.group);\n\n    let lastKnownKeys;\n    let $el = $(el);\n    $el.on(\"change\", \"input[type='checkbox']\", function() {\n      let checked = $el.find(\"input[type='checkbox']:checked\");\n      if (checked.length === 0) {\n        lastKnownKeys = null;\n        ctHandle.clear();\n      } else {\n        let keys = {};\n        checked.each(function() {\n          data.map[this.value].forEach(function(key) {\n            keys[key] = true;\n          });\n        });\n        let keyArray = Object.keys(keys);\n        keyArray.sort();\n        lastKnownKeys = keyArray;\n        ctHandle.set(keyArray);\n      }\n    });\n\n    return {\n      suspend: function() {\n        ctHandle.clear();\n      },\n      resume: function() {\n        if (lastKnownKeys)\n          ctHandle.set(lastKnownKeys);\n      }\n    };\n  }\n});\n","import * as input from \"./input\";\nimport * as util from \"./util\";\nimport { FilterHandle } from \"./filter\";\n\nlet $ = global.jQuery;\n\ninput.register({\n  className: \"crosstalk-input-select\",\n\n  factory: function(el, data) {\n    /*\n     * items: {value: [...], label: [...]}\n     * map: {\"groupA\": [\"keyA\", \"keyB\", ...], ...}\n     * group: \"ct-groupname\"\n     */\n\n    let first = [{value: \"\", label: \"(All)\"}];\n    let items = util.dataframeToD3(data.items);\n    let opts = {\n      options: first.concat(items),\n      valueField: \"value\",\n      labelField: \"label\",\n      searchField: \"label\"\n    };\n\n    let select = $(el).find(\"select\")[0];\n\n    let selectize = $(select).selectize(opts)[0].selectize;\n\n    let ctHandle = new FilterHandle(data.group);\n\n    let lastKnownKeys;\n    selectize.on(\"change\", function() {\n      if (selectize.items.length === 0) {\n        lastKnownKeys = null;\n        ctHandle.clear();\n      } else {\n        let keys = {};\n        selectize.items.forEach(function(group) {\n          data.map[group].forEach(function(key) {\n            keys[key] = true;\n          });\n        });\n        let keyArray = Object.keys(keys);\n        keyArray.sort();\n        lastKnownKeys = keyArray;\n        ctHandle.set(keyArray);\n      }\n    });\n\n    return {\n      suspend: function() {\n        ctHandle.clear();\n      },\n      resume: function() {\n        if (lastKnownKeys)\n          ctHandle.set(lastKnownKeys);\n      }\n    };\n  }\n});\n","import * as input from \"./input\";\nimport { FilterHandle } from \"./filter\";\n\nlet $ = global.jQuery;\nlet strftime = global.strftime;\n\ninput.register({\n  className: \"crosstalk-input-slider\",\n\n  factory: function(el, data) {\n    /*\n     * map: {\"groupA\": [\"keyA\", \"keyB\", ...], ...}\n     * group: \"ct-groupname\"\n     */\n    let ctHandle = new FilterHandle(data.group);\n\n    let opts = {};\n    let $el = $(el).find(\"input\");\n    let dataType = $el.data(\"data-type\");\n    let timeFormat = $el.data(\"time-format\");\n    let round = $el.data(\"round\");\n    let timeFormatter;\n\n    // Set up formatting functions\n    if (dataType === \"date\") {\n      timeFormatter = strftime.utc();\n      opts.prettify = function(num) {\n        return timeFormatter(timeFormat, new Date(num));\n      };\n\n    } else if (dataType === \"datetime\") {\n      let timezone = $el.data(\"timezone\");\n      if (timezone)\n        timeFormatter = strftime.timezone(timezone);\n      else\n        timeFormatter = strftime;\n\n      opts.prettify = function(num) {\n        return timeFormatter(timeFormat, new Date(num));\n      };\n    } else if (dataType === \"number\") {\n      if (typeof round !== \"undefined\")\n        opts.prettify = function(num) {\n          let factor = Math.pow(10, round);\n          return Math.round(num * factor) / factor;\n        };\n    }\n\n    $el.ionRangeSlider(opts);\n\n    function getValue() {\n      let result = $el.data(\"ionRangeSlider\").result;\n\n      // Function for converting numeric value from slider to appropriate type.\n      let convert;\n      let dataType = $el.data(\"data-type\");\n      if (dataType === \"date\") {\n        convert = function(val) {\n          return formatDateUTC(new Date(+val));\n        };\n      } else if (dataType === \"datetime\") {\n        convert = function(val) {\n          // Convert ms to s\n          return +val / 1000;\n        };\n      } else {\n        convert = function(val) { return +val; };\n      }\n\n      if ($el.data(\"ionRangeSlider\").options.type === \"double\") {\n        return [convert(result.from), convert(result.to)];\n      } else {\n        return convert(result.from);\n      }\n    }\n\n    let lastKnownKeys = null;\n\n    $el.on(\"change.crosstalkSliderInput\", function(event) {\n      if (!$el.data(\"updating\") && !$el.data(\"animating\")) {\n        let [from, to] = getValue();\n        let keys = [];\n        for (let i = 0; i < data.values.length; i++) {\n          let val = data.values[i];\n          if (val >= from && val <= to) {\n            keys.push(data.keys[i]);\n          }\n        }\n        keys.sort();\n        ctHandle.set(keys);\n        lastKnownKeys = keys;\n      }\n    });\n\n\n    // let $el = $(el);\n    // $el.on(\"change\", \"input[type=\"checkbox\"]\", function() {\n    //   let checked = $el.find(\"input[type=\"checkbox\"]:checked\");\n    //   if (checked.length === 0) {\n    //     ctHandle.clear();\n    //   } else {\n    //     let keys = {};\n    //     checked.each(function() {\n    //       data.map[this.value].forEach(function(key) {\n    //         keys[key] = true;\n    //       });\n    //     });\n    //     let keyArray = Object.keys(keys);\n    //     keyArray.sort();\n    //     ctHandle.set(keyArray);\n    //   }\n    // });\n\n    return {\n      suspend: function() {\n        ctHandle.clear();\n      },\n      resume: function() {\n        if (lastKnownKeys)\n          ctHandle.set(lastKnownKeys);\n      }\n    };\n  }\n});\n\n\n// Convert a number to a string with leading zeros\nfunction padZeros(n, digits) {\n  let str = n.toString();\n  while (str.length < digits)\n    str = \"0\" + str;\n  return str;\n}\n\n// Given a Date object, return a string in yyyy-mm-dd format, using the\n// UTC date. This may be a day off from the date in the local time zone.\nfunction formatDateUTC(date) {\n  if (date instanceof Date) {\n    return date.getUTCFullYear() + \"-\" +\n           padZeros(date.getUTCMonth()+1, 2) + \"-\" +\n           padZeros(date.getUTCDate(), 2);\n\n  } else {\n    return null;\n  }\n}\n","import Events from \"./events\";\nimport grp from \"./group\";\nimport * as util from \"./util\";\n\n/**\n * Use this class to read and write (and listen for changes to) the selection\n * for a Crosstalk group. This is intended to be used for linked brushing.\n *\n * If two (or more) `SelectionHandle` instances in the same webpage share the\n * same group name, they will share the same state. Setting the selection using\n * one `SelectionHandle` instance will result in the `value` property instantly\n * changing across the others, and `\"change\"` event listeners on all instances\n * (including the one that initiated the sending) will fire.\n *\n * @param {string} [group] - The name of the Crosstalk group, or if none,\n *   null or undefined (or any other falsy value). This can be changed later\n *   via the [SelectionHandle#setGroup](#setGroup) method.\n * @param {Object} [extraInfo] - An object whose properties will be copied to\n *   the event object whenever an event is emitted.\n */\nexport class SelectionHandle {\n\n  constructor(group = null, extraInfo = null) {\n    this._eventRelay = new Events();\n    this._emitter = new util.SubscriptionTracker(this._eventRelay);\n\n    // Name of the group we're currently tracking, if any. Can change over time.\n    this._group = null;\n    // The Var we're currently tracking, if any. Can change over time.\n    this._var = null;\n    // The event handler subscription we currently have on var.on(\"change\").\n    this._varOnChangeSub = null;\n\n    this._extraInfo = util.extend({ sender: this }, extraInfo);\n\n    this.setGroup(group);\n  }\n\n  /**\n   * Changes the Crosstalk group membership of this SelectionHandle. The group\n   * being switched away from (if any) will not have its selection value\n   * modified as a result of calling `setGroup`, even if this handle was the\n   * most recent handle to set the selection of the group.\n   *\n   * The group being switched to (if any) will also not have its selection value\n   * modified as a result of calling `setGroup`. If you want to set the\n   * selection value of the new group, call `set` explicitly.\n   *\n   * @param {string} group - The name of the Crosstalk group, or null (or\n   *   undefined) to clear the group.\n   */\n  setGroup(group) {\n    // If group is unchanged, do nothing\n    if (this._group === group)\n      return;\n    // Treat null, undefined, and other falsy values the same\n    if (!this._group && !group)\n      return;\n\n    if (this._var) {\n      this._var.off(\"change\", this._varOnChangeSub);\n      this._var = null;\n      this._varOnChangeSub = null;\n    }\n\n    this._group = group;\n\n    if (group) {\n      this._var = grp(group).var(\"selection\");\n      let sub = this._var.on(\"change\", (e) => {\n        this._eventRelay.trigger(\"change\", e, this);\n      });\n      this._varOnChangeSub = sub;\n    }\n  }\n\n  /**\n   * Retrieves the current selection for the group represented by this\n   * `SelectionHandle`.\n   *\n   * - If no selection is active, then this value will be falsy.\n   * - If a selection is active, but no data points are selected, then this\n   *   value will be an empty array.\n   * - If a selection is active, and data points are selected, then the keys\n   *   of the selected data points will be present in the array.\n   */\n  get value() {\n    return this._var ? this._var.get() : null;\n  }\n\n  /**\n   * Combines the given `extraInfo` (if any) with the handle's default\n   * `_extraInfo` (if any).\n   * @private\n   */\n  _mergeExtraInfo(extraInfo) {\n    // Important incidental effect: shallow clone is returned\n    return util.extend({},\n      this._extraInfo ? this._extraInfo : null,\n      extraInfo ? extraInfo : null);\n  }\n\n  /**\n   * Overwrites the current selection for the group, and raises the `\"change\"`\n   * event among all of the group's '`SelectionHandle` instances (including\n   * this one).\n   *\n   * @fires SelectionHandle#change\n   * @param {string[]} selectedKeys - Falsy, empty array, or array of keys (see\n   *   {@link SelectionHandle#value}).\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any options that were\n   *   passed into the `SelectionHandle` constructor).\n   */\n  set(selectedKeys, extraInfo) {\n    if (this._var)\n      this._var.set(selectedKeys, this._mergeExtraInfo(extraInfo));\n  }\n\n  /**\n   * Overwrites the current selection for the group, and raises the `\"change\"`\n   * event among all of the group's '`SelectionHandle` instances (including\n   * this one).\n   *\n   * @fires SelectionHandle#change\n   * @param {Object} [extraInfo] - Extra properties to be included on the event\n   *   object that's passed to listeners (in addition to any that were passed\n   *   into the `SelectionHandle` constructor).\n   */\n  clear(extraInfo) {\n    if (this._var)\n      this.set(void 0, this._mergeExtraInfo(extraInfo));\n  }\n\n  /**\n   * Subscribes to events on this `SelectionHandle`.\n   *\n   * @param {string} eventType - Indicates the type of events to listen to.\n   *   Currently, only `\"change\"` is supported.\n   * @param {SelectionHandle~listener} listener - The callback function that\n   *   will be invoked when the event occurs.\n   * @return {string} - A token to pass to {@link SelectionHandle#off} to cancel\n   *   this subscription.\n   */\n  on(eventType, listener) {\n    return this._emitter.on(eventType, listener);\n  }\n\n  /**\n   * Cancels event subscriptions created by {@link SelectionHandle#on}.\n   *\n   * @param {string} eventType - The type of event to unsubscribe.\n   * @param {string|SelectionHandle~listener} listener - Either the callback\n   *   function previously passed into {@link SelectionHandle#on}, or the\n   *   string that was returned from {@link SelectionHandle#on}.\n   */\n  off(eventType, listener) {\n    return this._emitter.off(eventType, listener);\n  }\n\n  /**\n   * Shuts down the `SelectionHandle` object.\n   *\n   * Removes all event listeners that were added through this handle.\n   */\n  close() {\n    this._emitter.removeAllListeners();\n    this.setGroup(null);\n  }\n}\n\n/**\n * @callback SelectionHandle~listener\n * @param {Object} event - An object containing details of the event. For\n *   `\"change\"` events, this includes the properties `value` (the new\n *   value of the selection, or `undefined` if no selection is active),\n *   `oldValue` (the previous value of the selection), and `sender` (the\n *   `SelectionHandle` instance that made the change).\n */\n\n/**\n * @event SelectionHandle#change\n * @type {object}\n * @property {object} value - The new value of the selection, or `undefined`\n *   if no selection is active.\n * @property {object} oldValue - The previous value of the selection.\n * @property {SelectionHandle} sender - The `SelectionHandle` instance that\n *   changed the value.\n */\n","export function extend(target, ...sources) {\n  for (let i = 0; i < sources.length; i++) {\n    let src = sources[i];\n    if (typeof(src) === \"undefined\" || src === null)\n      continue;\n\n    for (let key in src) {\n      if (src.hasOwnProperty(key)) {\n        target[key] = src[key];\n      }\n    }\n  }\n  return target;\n}\n\nexport function checkSorted(list) {\n  for (let i = 1; i < list.length; i++) {\n    if (list[i] <= list[i-1]) {\n      throw new Error(\"List is not sorted or contains duplicate\");\n    }\n  }\n}\n\nexport function diffSortedLists(a, b) {\n  let i_a = 0;\n  let i_b = 0;\n\n  if (!a) a = [];\n  if (!b) b = [];\n\n  let a_only = [];\n  let b_only = [];\n\n  checkSorted(a);\n  checkSorted(b);\n\n  while (i_a < a.length && i_b < b.length) {\n    if (a[i_a] === b[i_b]) {\n      i_a++;\n      i_b++;\n    } else if (a[i_a] < b[i_b]) {\n      a_only.push(a[i_a++]);\n    } else {\n      b_only.push(b[i_b++]);\n    }\n  }\n\n  if (i_a < a.length)\n    a_only = a_only.concat(a.slice(i_a));\n  if (i_b < b.length)\n    b_only = b_only.concat(b.slice(i_b));\n  return {\n    removed: a_only,\n    added: b_only\n  };\n}\n\n// Convert from wide: { colA: [1,2,3], colB: [4,5,6], ... }\n// to long: [ {colA: 1, colB: 4}, {colA: 2, colB: 5}, ... ]\nexport function dataframeToD3(df) {\n  let names = [];\n  let length;\n  for (let name in df) {\n    if (df.hasOwnProperty(name))\n      names.push(name);\n    if (typeof(df[name]) !== \"object\" || typeof(df[name].length) === \"undefined\") {\n      throw new Error(\"All fields must be arrays\");\n    } else if (typeof(length) !== \"undefined\" && length !== df[name].length) {\n      throw new Error(\"All fields must be arrays of the same length\");\n    }\n    length = df[name].length;\n  }\n  let results = [];\n  let item;\n  for (let row = 0; row < length; row++) {\n    item = {};\n    for (let col = 0; col < names.length; col++) {\n      item[names[col]] = df[names[col]][row];\n    }\n    results.push(item);\n  }\n  return results;\n}\n\n/**\n * Keeps track of all event listener additions/removals and lets all active\n * listeners be removed with a single operation.\n *\n * @private\n */\nexport class SubscriptionTracker {\n  constructor(emitter) {\n    this._emitter = emitter;\n    this._subs = {};\n  }\n\n  on(eventType, listener) {\n    let sub = this._emitter.on(eventType, listener);\n    this._subs[sub] = eventType;\n    return sub;\n  }\n\n  off(eventType, listener) {\n    let sub = this._emitter.off(eventType, listener);\n    if (sub) {\n      delete this._subs[sub];\n    }\n    return sub;\n  }\n\n  removeAllListeners() {\n    let current_subs = this._subs;\n    this._subs = {};\n    Object.keys(current_subs).forEach((sub) => {\n      this._emitter.off(current_subs[sub], sub);\n    });\n  }\n}\n","import Events from \"./events\";\n\nexport default class Var {\n  constructor(group, name, /*optional*/ value) {\n    this._group = group;\n    this._name = name;\n    this._value = value;\n    this._events = new Events();\n  }\n\n  get() {\n    return this._value;\n  }\n\n  set(value, /*optional*/ event) {\n    if (this._value === value) {\n      // Do nothing; the value hasn't changed\n      return;\n    }\n    let oldValue = this._value;\n    this._value = value;\n    // Alert JavaScript listeners that the value has changed\n    let evt = {};\n    if (event && typeof(event) === \"object\") {\n      for (let k in event) {\n        if (event.hasOwnProperty(k))\n          evt[k] = event[k];\n      }\n    }\n    evt.oldValue = oldValue;\n    evt.value = value;\n    this._events.trigger(\"change\", evt, this);\n\n    // TODO: Make this extensible, to let arbitrary back-ends know that\n    // something has changed\n    if (global.Shiny && global.Shiny.onInputChange) {\n      global.Shiny.onInputChange(\n        \".clientValue-\" +\n          (this._group.name !== null ? this._group.name + \"-\" : \"\") +\n          this._name,\n        typeof(value) === \"undefined\" ? null : value\n      );\n    }\n  }\n\n  on(eventType, listener) {\n    return this._events.on(eventType, listener);\n  }\n\n  off(eventType, listener) {\n    return this._events.off(eventType, listener);\n  }\n}\n"]}
\ No newline at end of file
diff --git a/docs/site_libs/crosstalk-1.2.0/scss/crosstalk.scss b/docs/site_libs/crosstalk-1.2.0/scss/crosstalk.scss
new file mode 100644
index 00000000..35665616
--- /dev/null
+++ b/docs/site_libs/crosstalk-1.2.0/scss/crosstalk.scss
@@ -0,0 +1,75 @@
+/* Adjust margins outwards, so column contents line up with the edges of the
+   parent of container-fluid. */
+.container-fluid.crosstalk-bscols {
+  margin-left: -30px;
+  margin-right: -30px;
+  white-space: normal;
+}
+
+/* But don't adjust the margins outwards if we're directly under the body,
+   i.e. we were the top-level of something at the console. */
+body > .container-fluid.crosstalk-bscols {
+  margin-left: auto;
+  margin-right: auto;
+}
+
+.crosstalk-input-checkboxgroup .crosstalk-options-group .crosstalk-options-column {
+  display: inline-block;
+  padding-right: 12px;
+  vertical-align: top;
+}
+
+@media only screen and (max-width:480px) {
+  .crosstalk-input-checkboxgroup .crosstalk-options-group .crosstalk-options-column {
+    display: block;
+    padding-right: inherit;
+  }
+}
+
+/* Relevant BS3 styles to make filter_checkbox() look reasonable without Bootstrap */
+.crosstalk-input {
+  margin-bottom: 15px; /* a la .form-group */
+  .control-label {
+    margin-bottom: 0;
+    vertical-align: middle;
+  }
+  input[type="checkbox"] {
+    margin: 4px 0 0;
+    margin-top: 1px;
+    line-height: normal;
+  }
+  .checkbox {
+    position: relative;
+    display: block;
+    margin-top: 10px;
+    margin-bottom: 10px;
+  }
+  .checkbox > label{
+    padding-left: 20px;
+    margin-bottom: 0;
+    font-weight: 400;
+    cursor: pointer;
+  }
+  .checkbox input[type="checkbox"],
+  .checkbox-inline input[type="checkbox"] {
+    position: absolute;
+    margin-top: 2px;
+    margin-left: -20px;
+  }
+  .checkbox + .checkbox {
+    margin-top: -5px;
+  }
+  .checkbox-inline {
+    position: relative;
+    display: inline-block;
+    padding-left: 20px;
+    margin-bottom: 0;
+    font-weight: 400;
+    vertical-align: middle;
+    cursor: pointer;
+  }
+  .checkbox-inline + .checkbox-inline {
+    margin-top: 0;
+    margin-left: 10px;
+  }
+}
diff --git a/docs/site_libs/datatables-binding-0.28/datatables.js b/docs/site_libs/datatables-binding-0.28/datatables.js
new file mode 100644
index 00000000..aee8ab54
--- /dev/null
+++ b/docs/site_libs/datatables-binding-0.28/datatables.js
@@ -0,0 +1,1515 @@
+(function() {
+
+// some helper functions: using a global object DTWidget so that it can be used
+// in JS() code, e.g. datatable(options = list(foo = JS('code'))); unlike R's
+// dynamic scoping, when 'code' is eval()'ed, JavaScript does not know objects
+// from the "parent frame", e.g. JS('DTWidget') will not work unless it was made
+// a global object
+var DTWidget = {};
+
+// 123456666.7890 -> 123,456,666.7890
+var markInterval = function(d, digits, interval, mark, decMark, precision) {
+  x = precision ? d.toPrecision(digits) : d.toFixed(digits);
+  if (!/^-?[\d.]+$/.test(x)) return x;
+  var xv = x.split('.');
+  if (xv.length > 2) return x;  // should have at most one decimal point
+  xv[0] = xv[0].replace(new RegExp('\\B(?=(\\d{' + interval + '})+(?!\\d))', 'g'), mark);
+  return xv.join(decMark);
+};
+
+DTWidget.formatCurrency = function(data, currency, digits, interval, mark, decMark, before, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  var res = markInterval(d, digits, interval, mark, decMark);
+  res = before ? (/^-/.test(res) ? '-' + currency + res.replace(/^-/, '') : currency + res) :
+    res + currency;
+  return res;
+};
+
+DTWidget.formatString = function(data, prefix, suffix) {
+  var d = data;
+  if (d === null) return '';
+  return prefix + d + suffix;
+};
+
+DTWidget.formatPercentage = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d * 100, digits, interval, mark, decMark) + '%';
+};
+
+DTWidget.formatRound = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d, digits, interval, mark, decMark);
+};
+
+DTWidget.formatSignif = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d, digits, interval, mark, decMark, true);
+};
+
+DTWidget.formatDate = function(data, method, params) {
+  var d = data;
+  if (d === null) return '';
+  // (new Date('2015-10-28')).toDateString() may return 2015-10-27 because the
+  // actual time created could be like 'Tue Oct 27 2015 19:00:00 GMT-0500 (CDT)',
+  // i.e. the date-only string is treated as UTC time instead of local time
+  if ((method === 'toDateString' || method === 'toLocaleDateString') && /^\d{4,}\D\d{2}\D\d{2}$/.test(d)) {
+    d = d.split(/\D/);
+    d = new Date(d[0], d[1] - 1, d[2]);
+  } else {
+    d = new Date(d);
+  }
+  return d[method].apply(d, params);
+};
+
+window.DTWidget = DTWidget;
+
+// A helper function to update the properties of existing filters
+var setFilterProps = function(td, props) {
+  // Update enabled/disabled state
+  var $input = $(td).find('input').first();
+  var searchable = $input.data('searchable');
+  $input.prop('disabled', !searchable || props.disabled);
+
+  // Based on the filter type, set its new values
+  var type = td.getAttribute('data-type');
+  if (['factor', 'logical'].includes(type)) {
+    // Reformat the new dropdown options for use with selectize
+    var new_vals = props.params.options.map(function(item) {
+      return { text: item, value: item };
+    });
+
+    // Find the selectize object
+    var dropdown = $(td).find('.selectized').eq(0)[0].selectize;
+
+    // Note the current values
+    var old_vals = dropdown.getValue();
+
+    // Remove the existing values
+    dropdown.clearOptions();
+
+    // Add the new options
+    dropdown.addOption(new_vals);
+
+    // Preserve the existing values
+    dropdown.setValue(old_vals);
+
+  } else if (['number', 'integer', 'date', 'time'].includes(type)) {
+    // Apply internal scaling to new limits. Updating scale not yet implemented.
+    var slider = $(td).find('.noUi-target').eq(0);
+    var scale = Math.pow(10, Math.max(0, +slider.data('scale') || 0));
+    var new_vals = [props.params.min * scale, props.params.max * scale];
+
+    // Note what the new limits will be just for this filter
+    var new_lims = new_vals.slice();
+
+    // Determine the current values and limits
+    var old_vals = slider.val().map(Number);
+    var old_lims = slider.noUiSlider('options').range;
+    old_lims = [old_lims.min, old_lims.max];
+
+    // Preserve the current values if filters have been applied; otherwise, apply no filtering
+    if (old_vals[0] != old_lims[0]) {
+      new_vals[0] = Math.max(old_vals[0], new_vals[0]);
+    }
+
+    if (old_vals[1] != old_lims[1]) {
+      new_vals[1] = Math.min(old_vals[1], new_vals[1]);
+    }
+
+    // Update the endpoints of the slider
+    slider.noUiSlider({
+      start: new_vals,
+      range: {'min': new_lims[0], 'max': new_lims[1]}
+    }, true);
+  }
+};
+
+var transposeArray2D = function(a) {
+  return a.length === 0 ? a : HTMLWidgets.transposeArray2D(a);
+};
+
+var crosstalkPluginsInstalled = false;
+
+function maybeInstallCrosstalkPlugins() {
+  if (crosstalkPluginsInstalled)
+    return;
+  crosstalkPluginsInstalled = true;
+
+  $.fn.dataTable.ext.afnFiltering.push(
+    function(oSettings, aData, iDataIndex) {
+      var ctfilter = oSettings.nTable.ctfilter;
+      if (ctfilter && !ctfilter[iDataIndex])
+        return false;
+
+      var ctselect = oSettings.nTable.ctselect;
+      if (ctselect && !ctselect[iDataIndex])
+        return false;
+
+      return true;
+    }
+  );
+}
+
+HTMLWidgets.widget({
+  name: "datatables",
+  type: "output",
+  renderOnNullValue: true,
+  initialize: function(el, width, height) {
+    // in order that the type=number inputs return a number
+    $.valHooks.number = {
+      get: function(el) {
+        var value = parseFloat(el.value);
+        return isNaN(value) ? "" : value;
+      }
+    };
+    $(el).html('&nbsp;');
+    return {
+      data: null,
+      ctfilterHandle: new crosstalk.FilterHandle(),
+      ctfilterSubscription: null,
+      ctselectHandle: new crosstalk.SelectionHandle(),
+      ctselectSubscription: null
+    };
+  },
+  renderValue: function(el, data, instance) {
+    if (el.offsetWidth === 0 || el.offsetHeight === 0) {
+      instance.data = data;
+      return;
+    }
+    instance.data = null;
+    var $el = $(el);
+    $el.empty();
+
+    if (data === null) {
+      $el.append('&nbsp;');
+      // clear previous Shiny inputs (if any)
+      for (var i in instance.clearInputs) instance.clearInputs[i]();
+      instance.clearInputs = {};
+      return;
+    }
+
+    var crosstalkOptions = data.crosstalkOptions;
+    if (!crosstalkOptions) crosstalkOptions = {
+      'key': null, 'group': null
+    };
+    if (crosstalkOptions.group) {
+      maybeInstallCrosstalkPlugins();
+      instance.ctfilterHandle.setGroup(crosstalkOptions.group);
+      instance.ctselectHandle.setGroup(crosstalkOptions.group);
+    }
+
+    // if we are in the viewer then we always want to fillContainer and
+    // and autoHideNavigation (unless the user has explicitly set these)
+    if (window.HTMLWidgets.viewerMode) {
+      if (!data.hasOwnProperty("fillContainer"))
+        data.fillContainer = true;
+      if (!data.hasOwnProperty("autoHideNavigation"))
+        data.autoHideNavigation = true;
+    }
+
+    // propagate fillContainer to instance (so we have it in resize)
+    instance.fillContainer = data.fillContainer;
+
+    var cells = data.data;
+
+    if (cells instanceof Array) cells = transposeArray2D(cells);
+
+    $el.append(data.container);
+    var $table = $el.find('table');
+    if (data.class) $table.addClass(data.class);
+    if (data.caption) $table.prepend(data.caption);
+
+    if (!data.selection) data.selection = {
+      mode: 'none', selected: null, target: 'row', selectable: null
+    };
+    if (HTMLWidgets.shinyMode && data.selection.mode !== 'none' &&
+        data.selection.target === 'row+column') {
+      if ($table.children('tfoot').length === 0) {
+        $table.append($('<tfoot>'));
+        $table.find('thead tr').clone().appendTo($table.find('tfoot'));
+      }
+    }
+
+    // column filters
+    var filterRow;
+    switch (data.filter) {
+      case 'top':
+        $table.children('thead').append(data.filterHTML);
+        filterRow = $table.find('thead tr:last td');
+        break;
+      case 'bottom':
+        if ($table.children('tfoot').length === 0) {
+          $table.append($('<tfoot>'));
+        }
+        $table.children('tfoot').prepend(data.filterHTML);
+        filterRow = $table.find('tfoot tr:first td');
+        break;
+    }
+
+    var options = { searchDelay: 1000 };
+    if (cells !== null) $.extend(options, {
+      data: cells
+    });
+
+    // options for fillContainer
+    var bootstrapActive = typeof($.fn.popover) != 'undefined';
+    if (instance.fillContainer) {
+
+      // force scrollX/scrollY and turn off autoWidth
+      options.scrollX = true;
+      options.scrollY = "100px"; // can be any value, we'll adjust below
+
+      // if we aren't paginating then move around the info/filter controls
+      // to save space at the bottom and rephrase the info callback
+      if (data.options.paging === false) {
+
+        // we know how to do this cleanly for bootstrap, not so much
+        // for other themes/layouts
+        if (bootstrapActive) {
+          options.dom = "<'row'<'col-sm-4'i><'col-sm-8'f>>" +
+                        "<'row'<'col-sm-12'tr>>";
+        }
+
+        options.fnInfoCallback = function(oSettings, iStart, iEnd,
+                                           iMax, iTotal, sPre) {
+          return Number(iTotal).toLocaleString() + " records";
+        };
+      }
+    }
+
+    // auto hide navigation if requested
+    // Note, this only works on client-side processing mode as on server-side,
+    // cells (data.data) is null; In addition, we require the pageLength option
+    // being provided explicitly to enable this. Despite we may be able to deduce
+    // the default value of pageLength, it may complicate things so we'd rather
+    // put this responsiblity to users and warn them on the R side.
+    if (data.autoHideNavigation === true && data.options.paging !== false) {
+      // strip all nav if length >= cells
+      if ((cells instanceof Array) && data.options.pageLength >= cells.length)
+        options.dom = bootstrapActive ? "<'row'<'col-sm-12'tr>>" : "t";
+      // alternatively lean things out for flexdashboard mobile portrait
+      else if (bootstrapActive && window.FlexDashboard && window.FlexDashboard.isMobilePhone())
+        options.dom = "<'row'<'col-sm-12'f>>" +
+                      "<'row'<'col-sm-12'tr>>"  +
+                      "<'row'<'col-sm-12'p>>";
+    }
+
+    $.extend(true, options, data.options || {});
+
+    var searchCols = options.searchCols;
+    if (searchCols) {
+      searchCols = searchCols.map(function(x) {
+        return x === null ? '' : x.search;
+      });
+      // FIXME: this means I don't respect the escapeRegex setting
+      delete options.searchCols;
+    }
+
+    // server-side processing?
+    var server = options.serverSide === true;
+
+    // use the dataSrc function to pre-process JSON data returned from R
+    var DT_rows_all = [], DT_rows_current = [];
+    if (server && HTMLWidgets.shinyMode && typeof options.ajax === 'object' &&
+        /^session\/[\da-z]+\/dataobj/.test(options.ajax.url) && !options.ajax.dataSrc) {
+      options.ajax.dataSrc = function(json) {
+        DT_rows_all = $.makeArray(json.DT_rows_all);
+        DT_rows_current = $.makeArray(json.DT_rows_current);
+        var data = json.data;
+        if (!colReorderEnabled()) return data;
+        var table = $table.DataTable(), order = table.colReorder.order(), flag = true, i, j, row;
+        for (i = 0; i < order.length; ++i) if (order[i] !== i) flag = false;
+        if (flag) return data;
+        for (i = 0; i < data.length; ++i) {
+          row = data[i].slice();
+          for (j = 0; j < order.length; ++j) data[i][j] = row[order[j]];
+        }
+        return data;
+      };
+    }
+
+    var thiz = this;
+    if (instance.fillContainer) $table.on('init.dt', function(e) {
+      thiz.fillAvailableHeight(el, $(el).innerHeight());
+    });
+    // If the page contains serveral datatables and one of which enables colReorder,
+    // the table.colReorder.order() function will exist but throws error when called.
+    // So it seems like the only way to know if colReorder is enabled or not is to
+    // check the options.
+    var colReorderEnabled = function() { return "colReorder" in options; };
+    var table = $table.DataTable(options);
+    $el.data('datatable', table);
+
+    // Unregister previous Crosstalk event subscriptions, if they exist
+    if (instance.ctfilterSubscription) {
+      instance.ctfilterHandle.off("change", instance.ctfilterSubscription);
+      instance.ctfilterSubscription = null;
+    }
+    if (instance.ctselectSubscription) {
+      instance.ctselectHandle.off("change", instance.ctselectSubscription);
+      instance.ctselectSubscription = null;
+    }
+
+    if (!crosstalkOptions.group) {
+      $table[0].ctfilter = null;
+      $table[0].ctselect = null;
+    } else {
+      var key = crosstalkOptions.key;
+      function keysToMatches(keys) {
+        if (!keys) {
+          return null;
+        } else {
+          var selectedKeys = {};
+          for (var i = 0; i < keys.length; i++) {
+            selectedKeys[keys[i]] = true;
+          }
+          var matches = {};
+          for (var j = 0; j < key.length; j++) {
+            if (selectedKeys[key[j]])
+              matches[j] = true;
+          }
+          return matches;
+        }
+      }
+
+      function applyCrosstalkFilter(e) {
+        $table[0].ctfilter = keysToMatches(e.value);
+        table.draw();
+      }
+      instance.ctfilterSubscription = instance.ctfilterHandle.on("change", applyCrosstalkFilter);
+      applyCrosstalkFilter({value: instance.ctfilterHandle.filteredKeys});
+
+      function applyCrosstalkSelection(e) {
+        if (e.sender !== instance.ctselectHandle) {
+          table
+            .rows('.' + selClass, {search: 'applied'})
+            .nodes()
+            .to$()
+            .removeClass(selClass);
+          if (selectedRows)
+            changeInput('rows_selected', selectedRows(), void 0, true);
+        }
+
+        if (e.sender !== instance.ctselectHandle && e.value && e.value.length) {
+          var matches = keysToMatches(e.value);
+
+          // persistent selection with plotly (& leaflet)
+          var ctOpts = crosstalk.var("plotlyCrosstalkOpts").get() || {};
+          if (ctOpts.persistent === true) {
+            var matches = $.extend(matches, $table[0].ctselect);
+          }
+
+          $table[0].ctselect = matches;
+          table.draw();
+        } else {
+          if ($table[0].ctselect) {
+            $table[0].ctselect = null;
+            table.draw();
+          }
+        }
+      }
+      instance.ctselectSubscription = instance.ctselectHandle.on("change", applyCrosstalkSelection);
+      // TODO: This next line doesn't seem to work when renderDataTable is used
+      applyCrosstalkSelection({value: instance.ctselectHandle.value});
+    }
+
+    var inArray = function(val, array) {
+      return $.inArray(val, $.makeArray(array)) > -1;
+    };
+
+    // search the i-th column
+    var searchColumn = function(i, value) {
+      var regex = false, ci = true;
+      if (options.search) {
+        regex = options.search.regex,
+        ci = options.search.caseInsensitive !== false;
+      }
+      return table.column(i).search(value, regex, !regex, ci);
+    };
+
+    if (data.filter !== 'none') {
+
+      filterRow.each(function(i, td) {
+
+        var $td = $(td), type = $td.data('type'), filter;
+        var $input = $td.children('div').first().children('input');
+        var disabled = $input.prop('disabled');
+        var searchable = table.settings()[0].aoColumns[i].bSearchable;
+        $input.prop('disabled', !searchable || disabled);
+        $input.data('searchable', searchable); // for updating later
+        $input.on('input blur', function() {
+          $input.next('span').toggle(Boolean($input.val()));
+        });
+        // Bootstrap sets pointer-events to none and we won't be able to click
+        // the clear button
+        $input.next('span').css('pointer-events', 'auto').hide().click(function() {
+          $(this).hide().prev('input').val('').trigger('input').focus();
+        });
+        var searchCol;  // search string for this column
+        if (searchCols && searchCols[i]) {
+          searchCol = searchCols[i];
+          $input.val(searchCol).trigger('input');
+        }
+        var $x = $td.children('div').last();
+
+        // remove the overflow: hidden attribute of the scrollHead
+        // (otherwise the scrolling table body obscures the filters)
+        // The workaround and the discussion from
+        // https://github.com/rstudio/DT/issues/554#issuecomment-518007347
+        // Otherwise the filter selection will not be anchored to the values
+        // when the columns number is many and scrollX is enabled.
+        var scrollHead = $(el).find('.dataTables_scrollHead,.dataTables_scrollFoot');
+        var cssOverflowHead = scrollHead.css('overflow');
+        var scrollBody = $(el).find('.dataTables_scrollBody');
+        var cssOverflowBody = scrollBody.css('overflow');
+        var scrollTable = $(el).find('.dataTables_scroll');
+        var cssOverflowTable = scrollTable.css('overflow');
+        if (cssOverflowHead === 'hidden') {
+          $x.on('show hide', function(e) {
+            if (e.type === 'show') {
+              scrollHead.css('overflow', 'visible');
+              scrollBody.css('overflow', 'visible');
+              scrollTable.css('overflow-x', 'scroll');
+            } else {
+              scrollHead.css('overflow', cssOverflowHead);
+              scrollBody.css('overflow', cssOverflowBody);
+              scrollTable.css('overflow-x', cssOverflowTable);
+            }
+          });
+          $x.css('z-index', 25);
+        }
+
+        if (inArray(type, ['factor', 'logical'])) {
+          $input.on({
+            click: function() {
+              $input.parent().hide(); $x.show().trigger('show'); filter[0].selectize.focus();
+            },
+            input: function() {
+              if ($input.val() === '') filter[0].selectize.setValue([]);
+            }
+          });
+          var $input2 = $x.children('select');
+          filter = $input2.selectize({
+            options: $input2.data('options').map(function(v, i) {
+              return ({text: v, value: v});
+            }),
+            plugins: ['remove_button'],
+            hideSelected: true,
+            onChange: function(value) {
+              if (value === null) value = []; // compatibility with jQuery 3.0
+              $input.val(value.length ? JSON.stringify(value) : '');
+              if (value.length) $input.trigger('input');
+              $input.attr('title', $input.val());
+              if (server) {
+                table.column(i).search(value.length ? JSON.stringify(value) : '').draw();
+                return;
+              }
+              // turn off filter if nothing selected
+              $td.data('filter', value.length > 0);
+              table.draw();  // redraw table, and filters will be applied
+            }
+          });
+          if (searchCol) filter[0].selectize.setValue(JSON.parse(searchCol));
+          filter[0].selectize.on('blur', function() {
+            $x.hide().trigger('hide'); $input.parent().show(); $input.trigger('blur');
+          });
+          filter.next('div').css('margin-bottom', 'auto');
+        } else if (type === 'character') {
+          var fun = function() {
+            searchColumn(i, $input.val()).draw();
+          };
+          if (server) {
+            fun = $.fn.dataTable.util.throttle(fun, options.searchDelay);
+          }
+          $input.on('input', fun);
+        } else if (inArray(type, ['number', 'integer', 'date', 'time'])) {
+          var $x0 = $x;
+          $x = $x0.children('div').first();
+          $x0.css({
+            'background-color': '#fff',
+            'border': '1px #ddd solid',
+            'border-radius': '4px',
+            'padding': data.vertical ? '35px 20px': '20px 20px 10px 20px'
+          });
+          var $spans = $x0.children('span').css({
+            'margin-top': data.vertical ? '0' : '10px',
+            'white-space': 'nowrap'
+          });
+          var $span1 = $spans.first(), $span2 = $spans.last();
+          var r1 = +$x.data('min'), r2 = +$x.data('max');
+          // when the numbers are too small or have many decimal places, the
+          // slider may have numeric precision problems (#150)
+          var scale = Math.pow(10, Math.max(0, +$x.data('scale') || 0));
+          r1 = Math.round(r1 * scale); r2 = Math.round(r2 * scale);
+          var scaleBack = function(x, scale) {
+            if (scale === 1) return x;
+            var d = Math.round(Math.log(scale) / Math.log(10));
+            // to avoid problems like 3.423/100 -> 0.034230000000000003
+            return (x / scale).toFixed(d);
+          };
+          var slider_min = function() {
+            return filter.noUiSlider('options').range.min;
+          };
+          var slider_max = function() {
+            return filter.noUiSlider('options').range.max;
+          };
+          $input.on({
+            focus: function() {
+              $x0.show().trigger('show');
+              // first, make sure the slider div leaves at least 20px between
+              // the two (slider value) span's
+              $x0.width(Math.max(160, $span1.outerWidth() + $span2.outerWidth() + 20));
+              // then, if the input is really wide or slider is vertical,
+              // make the slider the same width as the input
+              if ($x0.outerWidth() < $input.outerWidth() || data.vertical) {
+                $x0.outerWidth($input.outerWidth());
+              }
+              // make sure the slider div does not reach beyond the right margin
+              if ($(window).width() < $x0.offset().left + $x0.width()) {
+                $x0.offset({
+                  'left': $input.offset().left + $input.outerWidth() - $x0.outerWidth()
+                });
+              }
+            },
+            blur: function() {
+              $x0.hide().trigger('hide');
+            },
+            input: function() {
+              if ($input.val() === '') filter.val([slider_min(), slider_max()]);
+            },
+            change: function() {
+              var v = $input.val().replace(/\s/g, '');
+              if (v === '') return;
+              v = v.split('...');
+              if (v.length !== 2) {
+                $input.parent().addClass('has-error');
+                return;
+              }
+              if (v[0] === '') v[0] = slider_min();
+              if (v[1] === '') v[1] = slider_max();
+              $input.parent().removeClass('has-error');
+              // treat date as UTC time at midnight
+              var strTime = function(x) {
+                var s = type === 'date' ? 'T00:00:00Z' : '';
+                var t = new Date(x + s).getTime();
+                // add 10 minutes to date since it does not hurt the date, and
+                // it helps avoid the tricky floating point arithmetic problems,
+                // e.g. sometimes the date may be a few milliseconds earlier
+                // than the midnight due to precision problems in noUiSlider
+                return type === 'date' ? t + 3600000 : t;
+              };
+              if (inArray(type, ['date', 'time'])) {
+                v[0] = strTime(v[0]);
+                v[1] = strTime(v[1]);
+              }
+              if (v[0] != slider_min()) v[0] *= scale;
+              if (v[1] != slider_max()) v[1] *= scale;
+              filter.val(v);
+            }
+          });
+          var formatDate = function(d, isoFmt) {
+            d = scaleBack(d, scale);
+            if (type === 'number') return d;
+            if (type === 'integer') return parseInt(d);
+            var x = new Date(+d);
+            var fmt = ('filterDateFmt' in data) ? data.filterDateFmt[i] : undefined;
+            if (fmt !== undefined && isoFmt === false) return x[fmt.method].apply(x, fmt.params);
+            if (type === 'date') {
+              var pad0 = function(x) {
+                return ('0' + x).substr(-2, 2);
+              };
+              return x.getUTCFullYear() + '-' + pad0(1 + x.getUTCMonth())
+                      + '-' + pad0(x.getUTCDate());
+            } else {
+              return x.toISOString();
+            }
+          };
+          var opts = type === 'date' ? { step: 60 * 60 * 1000 } :
+                     type === 'integer' ? { step: 1 } : {};
+
+          opts.orientation = data.vertical ? 'vertical': 'horizontal';
+          opts.direction = data.vertical ? 'rtl': 'ltr';
+
+          filter = $x.noUiSlider($.extend({
+            start: [r1, r2],
+            range: {min: r1, max: r2},
+            connect: true
+          }, opts));
+          if (scale > 1) (function() {
+            var t1 = r1, t2 = r2;
+            var val = filter.val();
+            while (val[0] > r1 || val[1] < r2) {
+              if (val[0] > r1) {
+                t1 -= val[0] - r1;
+              }
+              if (val[1] < r2) {
+                t2 += r2 - val[1];
+              }
+              filter = $x.noUiSlider($.extend({
+                start: [t1, t2],
+                range: {min: t1, max: t2},
+                connect: true
+              }, opts), true);
+              val = filter.val();
+            }
+            r1  = t1; r2 = t2;
+          })();
+          var updateSliderText = function(v1, v2) {
+            $span1.text(formatDate(v1, false)); $span2.text(formatDate(v2, false));
+          };
+          updateSliderText(r1, r2);
+          var updateSlider = function(e) {
+            var val = filter.val();
+            // turn off filter if in full range
+            $td.data('filter', val[0] > slider_min() || val[1] < slider_max());
+            var v1 = formatDate(val[0]), v2 = formatDate(val[1]), ival;
+            if ($td.data('filter')) {
+              ival = v1 + ' ... ' + v2;
+              $input.attr('title', ival).val(ival).trigger('input');
+            } else {
+              $input.attr('title', '').val('');
+            }
+            updateSliderText(val[0], val[1]);
+            if (e.type === 'slide') return;  // no searching when sliding only
+            if (server) {
+              table.column(i).search($td.data('filter') ? ival : '').draw();
+              return;
+            }
+            table.draw();
+          };
+          filter.on({
+            set: updateSlider,
+            slide: updateSlider
+          });
+        }
+
+        // server-side processing will be handled by R (or whatever server
+        // language you use); the following code is only needed for client-side
+        // processing
+        if (server) {
+          // if a search string has been pre-set, search now
+          if (searchCol) searchColumn(i, searchCol).draw();
+          return;
+        }
+
+        var customFilter = function(settings, data, dataIndex) {
+          // there is no way to attach a search function to a specific table,
+          // and we need to make sure a global search function is not applied to
+          // all tables (i.e. a range filter in a previous table should not be
+          // applied to the current table); we use the settings object to
+          // determine if we want to perform searching on the current table,
+          // since settings.sTableId will be different to different tables
+          if (table.settings()[0] !== settings) return true;
+          // no filter on this column or no need to filter this column
+          if (typeof filter === 'undefined' || !$td.data('filter')) return true;
+
+          var r = filter.val(), v, r0, r1;
+          var i_data = function(i) {
+            if (!colReorderEnabled()) return i;
+            var order = table.colReorder.order(), k;
+            for (k = 0; k < order.length; ++k) if (order[k] === i) return k;
+            return i; // in theory it will never be here...
+          }
+          v = data[i_data(i)];
+          if (type === 'number' || type === 'integer') {
+            v = parseFloat(v);
+            // how to handle NaN? currently exclude these rows
+            if (isNaN(v)) return(false);
+            r0 = parseFloat(scaleBack(r[0], scale))
+            r1 = parseFloat(scaleBack(r[1], scale));
+            if (v >= r0 && v <= r1) return true;
+          } else if (type === 'date' || type === 'time') {
+            v = new Date(v);
+            r0 = new Date(r[0] / scale); r1 = new Date(r[1] / scale);
+            if (v >= r0 && v <= r1) return true;
+          } else if (type === 'factor') {
+            if (r.length === 0 || inArray(v, r)) return true;
+          } else if (type === 'logical') {
+            if (r.length === 0) return true;
+            if (inArray(v === '' ? 'na' : v, r)) return true;
+          }
+          return false;
+        };
+
+        $.fn.dataTable.ext.search.push(customFilter);
+
+        // search for the preset search strings if it is non-empty
+        if (searchCol) {
+          if (inArray(type, ['factor', 'logical'])) {
+            filter[0].selectize.setValue(JSON.parse(searchCol));
+          } else if (type === 'character') {
+            $input.trigger('input');
+          } else if (inArray(type, ['number', 'integer', 'date', 'time'])) {
+            $input.trigger('change');
+          }
+        }
+
+      });
+
+    }
+
+    // highlight search keywords
+    var highlight = function() {
+      var body = $(table.table().body());
+      // removing the old highlighting first
+      body.unhighlight();
+
+      // don't highlight the "not found" row, so we get the rows using the api
+      if (table.rows({ filter: 'applied' }).data().length === 0) return;
+      // highlight global search keywords
+      body.highlight($.trim(table.search()).split(/\s+/));
+      // then highlight keywords from individual column filters
+      if (filterRow) filterRow.each(function(i, td) {
+        var $td = $(td), type = $td.data('type');
+        if (type !== 'character') return;
+        var $input = $td.children('div').first().children('input');
+        var column = table.column(i).nodes().to$(),
+            val = $.trim($input.val());
+        if (type !== 'character' || val === '') return;
+        column.highlight(val.split(/\s+/));
+      });
+    };
+
+    if (options.searchHighlight) {
+      table
+      .on('draw.dt.dth column-visibility.dt.dth column-reorder.dt.dth', highlight)
+      .on('destroy', function() {
+        // remove event handler
+        table.off('draw.dt.dth column-visibility.dt.dth column-reorder.dt.dth');
+      });
+
+      // Set the option for escaping regex characters in our search string.  This will be used
+      // for all future matching.
+      jQuery.fn.highlight.options.escapeRegex = (!options.search || !options.search.regex);
+
+      // initial highlight for state saved conditions and initial states
+      highlight();
+    }
+
+    // run the callback function on the table instance
+    if (typeof data.callback === 'function') data.callback(table);
+
+    // double click to edit the cell, row, column, or all cells
+    if (data.editable) table.on('dblclick.dt', 'tbody td', function(e) {
+      // only bring up the editor when the cell itself is dbclicked, and ignore
+      // other dbclick events bubbled up (e.g. from the <input>)
+      if (e.target !== this) return;
+      var target = [], immediate = false;
+      switch (data.editable.target) {
+        case 'cell':
+          target = [this];
+          immediate = true;  // edit will take effect immediately
+          break;
+        case 'row':
+          target = table.cells(table.cell(this).index().row, '*').nodes();
+          break;
+        case 'column':
+          target = table.cells('*', table.cell(this).index().column).nodes();
+          break;
+        case 'all':
+          target = table.cells().nodes();
+          break;
+        default:
+          throw 'The editable parameter must be "cell", "row", "column", or "all"';
+      }
+      var disableCols = data.editable.disable ? data.editable.disable.columns : null;
+      var numericCols = data.editable.numeric;
+      var areaCols = data.editable.area;
+      var dateCols = data.editable.date;
+      for (var i = 0; i < target.length; i++) {
+        (function(cell, current) {
+          var $cell = $(cell), html = $cell.html();
+          var _cell = table.cell(cell), value = _cell.data(), index = _cell.index().column;
+          var $input;
+          if (inArray(index, numericCols)) {
+            $input = $('<input type="number">');
+          } else if (inArray(index, areaCols)) {
+            $input = $('<textarea></textarea>');
+          } else if (inArray(index, dateCols)) {
+            $input = $('<input type="date">');
+          } else {
+            $input = $('<input type="text">');
+          }
+          if (!immediate) {
+            $cell.data('input', $input).data('html', html);
+            $input.attr('title', 'Hit Ctrl+Enter to finish editing, or Esc to cancel');
+          }
+          $input.val(value);
+          if (inArray(index, disableCols)) {
+            $input.attr('readonly', '').css('filter', 'invert(25%)');
+          }
+          $cell.empty().append($input);
+          if (cell === current) $input.focus();
+          $input.css('width', '100%');
+
+          if (immediate) $input.on('blur', function(e) {
+            var valueNew = $input.val();
+            if (valueNew !== value) {
+              _cell.data(valueNew);
+              if (HTMLWidgets.shinyMode) {
+                changeInput('cell_edit', [cellInfo(cell)], 'DT.cellInfo', null, {priority: 'event'});
+              }
+              // for server-side processing, users have to call replaceData() to update the table
+              if (!server) table.draw(false);
+            } else {
+              $cell.html(html);
+            }
+          }).on('keyup', function(e) {
+            // hit Escape to cancel editing
+            if (e.keyCode === 27) $input.trigger('blur');
+          });
+
+          // bulk edit (row, column, or all)
+          if (!immediate) $input.on('keyup', function(e) {
+            var removeInput = function($cell, restore) {
+              $cell.data('input').remove();
+              if (restore) $cell.html($cell.data('html'));
+            }
+            if (e.keyCode === 27) {
+              for (var i = 0; i < target.length; i++) {
+                removeInput($(target[i]), true);
+              }
+            } else if (e.keyCode === 13 && e.ctrlKey) {
+              // Ctrl + Enter
+              var cell, $cell, _cell, cellData = [];
+              for (var i = 0; i < target.length; i++) {
+                cell = target[i]; $cell = $(cell); _cell = table.cell(cell);
+                _cell.data($cell.data('input').val());
+                HTMLWidgets.shinyMode && cellData.push(cellInfo(cell));
+                removeInput($cell, false);
+              }
+              if (HTMLWidgets.shinyMode) {
+                changeInput('cell_edit', cellData, 'DT.cellInfo', null, {priority: "event"});
+              }
+              if (!server) table.draw(false);
+            }
+          });
+        })(target[i], this);
+      }
+    });
+
+    // interaction with shiny
+    if (!HTMLWidgets.shinyMode && !crosstalkOptions.group) return;
+
+    var methods = {};
+    var shinyData = {};
+
+    methods.updateCaption = function(caption) {
+      if (!caption) return;
+      $table.children('caption').replaceWith(caption);
+    }
+
+    // register clear functions to remove input values when the table is removed
+    instance.clearInputs = {};
+
+    var changeInput = function(id, value, type, noCrosstalk, opts) {
+      var event = id;
+      id = el.id + '_' + id;
+      if (type) id = id + ':' + type;
+      // do not update if the new value is the same as old value
+      if (event !== 'cell_edit' && !/_clicked$/.test(event) && shinyData.hasOwnProperty(id) && shinyData[id] === JSON.stringify(value))
+        return;
+      shinyData[id] = JSON.stringify(value);
+      if (HTMLWidgets.shinyMode && Shiny.setInputValue) {
+        Shiny.setInputValue(id, value, opts);
+        if (!instance.clearInputs[id]) instance.clearInputs[id] = function() {
+          Shiny.setInputValue(id, null);
+        }
+      }
+
+      // HACK
+      if (event === "rows_selected" && !noCrosstalk) {
+        if (crosstalkOptions.group) {
+          var keys = crosstalkOptions.key;
+          var selectedKeys = null;
+          if (value) {
+            selectedKeys = [];
+            for (var i = 0; i < value.length; i++) {
+              // The value array's contents use 1-based row numbers, so we must
+              // convert to 0-based before indexing into the keys array.
+              selectedKeys.push(keys[value[i] - 1]);
+            }
+          }
+          instance.ctselectHandle.set(selectedKeys);
+        }
+      }
+    };
+
+    var addOne = function(x) {
+      return x.map(function(i) { return 1 + i; });
+    };
+
+    var unique = function(x) {
+      var ux = [];
+      $.each(x, function(i, el){
+        if ($.inArray(el, ux) === -1) ux.push(el);
+      });
+      return ux;
+    }
+
+    // change the row index of a cell
+    var tweakCellIndex = function(cell) {
+      var info = cell.index();
+      // some cell may not be valid. e.g, #759
+      // when using the RowGroup extension, datatables will
+      // generate the row label and the cells are not part of
+      // the data thus contain no row/col info
+      if (info === undefined)
+        return {row: null, col: null};
+      if (server) {
+        info.row = DT_rows_current[info.row];
+      } else {
+        info.row += 1;
+      }
+      return {row: info.row, col: info.column};
+    }
+
+    var cleanSelectedValues = function() {
+      changeInput('rows_selected', []);
+      changeInput('columns_selected', []);
+      changeInput('cells_selected', transposeArray2D([]), 'shiny.matrix');
+    }
+    // #828 we should clean the selection on the server-side when the table reloads
+    cleanSelectedValues();
+
+    // a flag to indicates if select extension is initialized or not
+    var flagSelectExt = table.settings()[0]._select !== undefined;
+    // the Select extension should only be used in the client mode and
+    // when the selection.mode is set to none
+    if (data.selection.mode === 'none' && !server && flagSelectExt) {
+      var updateRowsSelected = function() {
+        var rows = table.rows({selected: true});
+        var selected = [];
+        $.each(rows.indexes().toArray(), function(i, v) {
+          selected.push(v + 1);
+        });
+        changeInput('rows_selected', selected);
+      }
+      var updateColsSelected = function() {
+        var columns = table.columns({selected: true});
+        changeInput('columns_selected', columns.indexes().toArray());
+      }
+      var updateCellsSelected = function() {
+        var cells = table.cells({selected: true});
+        var selected = [];
+        cells.every(function() {
+          var row = this.index().row;
+          var col = this.index().column;
+          selected = selected.concat([[row + 1, col]]);
+        });
+        changeInput('cells_selected', transposeArray2D(selected), 'shiny.matrix');
+      }
+      table.on('select deselect', function(e, dt, type, indexes) {
+        updateRowsSelected();
+        updateColsSelected();
+        updateCellsSelected();
+      })
+    }
+
+    var selMode = data.selection.mode, selTarget = data.selection.target;
+    var selDisable = data.selection.selectable === false;
+    if (inArray(selMode, ['single', 'multiple'])) {
+      var selClass = inArray(data.style, ['bootstrap', 'bootstrap4']) ? 'active' : 'selected';
+      // selected1: row indices; selected2: column indices
+      var initSel = function(x) {
+        if (x === null || typeof x === 'boolean' || selTarget === 'cell') {
+          return {rows: [], cols: []};
+        } else if (selTarget === 'row') {
+          return {rows: $.makeArray(x), cols: []};
+        } else if (selTarget === 'column') {
+          return {rows: [], cols: $.makeArray(x)};
+        } else if (selTarget === 'row+column') {
+          return {rows: $.makeArray(x.rows), cols: $.makeArray(x.cols)};
+        }
+      }
+      var selected = data.selection.selected;
+      var selected1 = initSel(selected).rows, selected2 = initSel(selected).cols;
+      // selectable should contain either all positive or all non-positive values, not both
+      // positive values indicate "selectable" while non-positive values means "nonselectable"
+      // the assertion is performed on R side. (only column indicides could be zero which indicates
+      // the row name)
+      var selectable = data.selection.selectable;
+      var selectable1 = initSel(selectable).rows, selectable2 = initSel(selectable).cols;
+
+      // After users reorder the rows or filter the table, we cannot use the table index
+      // directly. Instead, we need this function to find out the rows between the two clicks.
+      // If user filter the table again between the start click and the end click, the behavior
+      // would be undefined, but it should not be a problem.
+      var shiftSelRowsIndex = function(start, end) {
+        var indexes = server ? DT_rows_all : table.rows({ search: 'applied' }).indexes().toArray();
+        start = indexes.indexOf(start); end = indexes.indexOf(end);
+        // if start is larger than end, we need to swap
+        if (start > end) {
+          var tmp = end; end = start; start = tmp;
+        }
+        return indexes.slice(start, end + 1);
+      }
+
+      var serverRowIndex = function(clientRowIndex) {
+        return server ? DT_rows_current[clientRowIndex] : clientRowIndex + 1;
+      }
+
+      // row, column, or cell selection
+      var lastClickedRow;
+      if (inArray(selTarget, ['row', 'row+column'])) {
+        // Get the current selected rows. It will also
+        // update the selected1's value based on the current row selection state
+        // Note we can't put this function inside selectRows() directly,
+        // the reason is method.selectRows() will override selected1's value but this
+        // function will add rows to selected1 (keep the existing selection), which is
+        // inconsistent with column and cell selection.
+        var selectedRows = function() {
+          var rows = table.rows('.' + selClass);
+          var idx = rows.indexes().toArray();
+          if (!server) {
+            selected1 = addOne(idx);
+            return selected1;
+          }
+          idx = idx.map(function(i) {
+            return DT_rows_current[i];
+          });
+          selected1 = selMode === 'multiple' ? unique(selected1.concat(idx)) : idx;
+          return selected1;
+        }
+        // Change selected1's value based on selectable1, then refresh the row state
+        var onlyKeepSelectableRows = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected1 = [];
+            return;
+          }
+          if (selectable1.length === 0) return;
+          var nonselectable = selectable1[0] <= 0;
+          if (nonselectable) {
+            // should make selectable1 positive
+            selected1 = $(selected1).not(selectable1.map(function(i) { return -i; })).get();
+          } else {
+            selected1 = $(selected1).filter(selectable1).get();
+          }
+        }
+        // Change selected1's value based on selectable1, then
+        // refresh the row selection state according to values in selected1
+        var selectRows = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableRows();
+          table.$('tr.' + selClass).removeClass(selClass);
+          if (selected1.length === 0) return;
+          if (server) {
+            table.rows({page: 'current'}).every(function() {
+              if (inArray(DT_rows_current[this.index()], selected1)) {
+                $(this.node()).addClass(selClass);
+              }
+            });
+          } else {
+            var selected0 = selected1.map(function(i) { return i - 1; });
+            $(table.rows(selected0).nodes()).addClass(selClass);
+          }
+        }
+        table.on('mousedown.dt', 'tbody tr', function(e) {
+          var $this = $(this), thisRow = table.row(this);
+          if (selMode === 'multiple') {
+            if (e.shiftKey && lastClickedRow !== undefined) {
+              // select or de-select depends on the last clicked row's status
+              var flagSel = !$this.hasClass(selClass);
+              var crtClickedRow = serverRowIndex(thisRow.index());
+              if (server) {
+                var rowsIndex = shiftSelRowsIndex(lastClickedRow, crtClickedRow);
+                // update current page's selClass
+                rowsIndex.map(function(i) {
+                  var rowIndex = DT_rows_current.indexOf(i);
+                  if (rowIndex >= 0) {
+                    var row = table.row(rowIndex).nodes().to$();
+                    var flagRowSel = !row.hasClass(selClass);
+                    if (flagSel === flagRowSel) row.toggleClass(selClass);
+                  }
+                });
+                // update selected1
+                if (flagSel) {
+                  selected1 = unique(selected1.concat(rowsIndex));
+                } else {
+                  selected1 = selected1.filter(function(index) {
+                    return !inArray(index, rowsIndex);
+                  });
+                }
+              } else {
+                // js starts from 0
+                shiftSelRowsIndex(lastClickedRow - 1, crtClickedRow - 1).map(function(value) {
+                  var row = table.row(value).nodes().to$();
+                  var flagRowSel = !row.hasClass(selClass);
+                  if (flagSel === flagRowSel) row.toggleClass(selClass);
+                });
+              }
+              e.preventDefault();
+            } else {
+              $this.toggleClass(selClass);
+            }
+          } else {
+            if ($this.hasClass(selClass)) {
+              $this.removeClass(selClass);
+            } else {
+              table.$('tr.' + selClass).removeClass(selClass);
+              $this.addClass(selClass);
+            }
+          }
+          if (server && !$this.hasClass(selClass)) {
+            var id = DT_rows_current[thisRow.index()];
+            // remove id from selected1 since its class .selected has been removed
+            if (inArray(id, selected1)) selected1.splice($.inArray(id, selected1), 1);
+          }
+          selectedRows(); // update selected1's value based on selClass
+          selectRows(false); // only keep the selectable rows
+          changeInput('rows_selected', selected1);
+          changeInput('row_last_clicked', serverRowIndex(thisRow.index()), null, null, {priority: 'event'});
+          lastClickedRow = serverRowIndex(thisRow.index());
+        });
+        selectRows(false);  // in case users have specified pre-selected rows
+        // restore selected rows after the table is redrawn (e.g. sort/search/page);
+        // client-side tables will preserve the selections automatically; for
+        // server-side tables, we have to *real* row indices are in `selected1`
+        changeInput('rows_selected', selected1);
+        if (server) table.on('draw.dt', function(e) { selectRows(false); });
+        methods.selectRows = function(selected, ignoreSelectable) {
+          selected1 = $.makeArray(selected);
+          selectRows(ignoreSelectable);
+          changeInput('rows_selected', selected1);
+        }
+      }
+
+      if (inArray(selTarget, ['column', 'row+column'])) {
+        if (selTarget === 'row+column') {
+          $(table.columns().footer()).css('cursor', 'pointer');
+        }
+        // update selected2's value based on selectable2
+        var onlyKeepSelectableCols = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected2 = [];
+            return;
+          }
+          if (selectable2.length === 0) return;
+          var nonselectable = selectable2[0] <= 0;
+          if (nonselectable) {
+            // need to make selectable2 positive
+            selected2 = $(selected2).not(selectable2.map(function(i) { return -i; })).get();
+          } else {
+            selected2 = $(selected2).filter(selectable2).get();
+          }
+        }
+        // update selected2 and then
+        // refresh the col selection state according to values in selected2
+        var selectCols = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableCols();
+          // if selected2 is not a valide index (e.g., larger than the column number)
+          // table.columns(selected2) will fail and result in a blank table
+          // this is different from the table.rows(), where the out-of-range indexes
+          // doesn't affect at all
+          selected2 = $(selected2).filter(table.columns().indexes()).get();
+          table.columns().nodes().flatten().to$().removeClass(selClass);
+          if (selected2.length > 0)
+            table.columns(selected2).nodes().flatten().to$().addClass(selClass);
+        }
+        var callback = function() {
+          var colIdx = selTarget === 'column' ? table.cell(this).index().column :
+              $.inArray(this, table.columns().footer()),
+              thisCol = $(table.column(colIdx).nodes());
+          if (colIdx === -1) return;
+          if (thisCol.hasClass(selClass)) {
+            thisCol.removeClass(selClass);
+            selected2.splice($.inArray(colIdx, selected2), 1);
+          } else {
+            if (selMode === 'single') $(table.cells().nodes()).removeClass(selClass);
+            thisCol.addClass(selClass);
+            selected2 = selMode === 'single' ? [colIdx] : unique(selected2.concat([colIdx]));
+          }
+          selectCols(false); // update selected2 based on selectable
+          changeInput('columns_selected', selected2);
+        }
+        if (selTarget === 'column') {
+          $(table.table().body()).on('click.dt', 'td', callback);
+        } else {
+          $(table.table().footer()).on('click.dt', 'tr th', callback);
+        }
+        selectCols(false);  // in case users have specified pre-selected columns
+        changeInput('columns_selected', selected2);
+        if (server) table.on('draw.dt', function(e) { selectCols(false); });
+        methods.selectColumns = function(selected, ignoreSelectable) {
+          selected2 = $.makeArray(selected);
+          selectCols(ignoreSelectable);
+          changeInput('columns_selected', selected2);
+        }
+      }
+
+      if (selTarget === 'cell') {
+        var selected3 = [], selectable3 = [];
+        if (selected !== null) selected3 = selected;
+        if (selectable !== null && typeof selectable !== 'boolean') selectable3 = selectable;
+        var findIndex = function(ij, sel) {
+          for (var i = 0; i < sel.length; i++) {
+            if (ij[0] === sel[i][0] && ij[1] === sel[i][1]) return i;
+          }
+          return -1;
+        }
+         // Change selected3's value based on selectable3, then refresh the cell state
+        var onlyKeepSelectableCells = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected3 = [];
+            return;
+          }
+          if (selectable3.length === 0) return;
+          var nonselectable = selectable3[0][0] <= 0;
+          var out = [];
+          if (nonselectable) {
+            selected3.map(function(ij) {
+              // should make selectable3 positive
+              if (findIndex([-ij[0], -ij[1]], selectable3) === -1) { out.push(ij); }
+            });
+          } else {
+            selected3.map(function(ij) {
+              if (findIndex(ij, selectable3) > -1) { out.push(ij); }
+            });
+          }
+          selected3 = out;
+        }
+        // Change selected3's value based on selectable3, then
+        // refresh the cell selection state according to values in selected3
+        var selectCells = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableCells();
+          table.$('td.' + selClass).removeClass(selClass);
+          if (selected3.length === 0) return;
+          if (server) {
+            table.cells({page: 'current'}).every(function() {
+              var info = tweakCellIndex(this);
+              if (findIndex([info.row, info.col], selected3) > -1)
+                $(this.node()).addClass(selClass);
+            });
+          } else {
+            selected3.map(function(ij) {
+              $(table.cell(ij[0] - 1, ij[1]).node()).addClass(selClass);
+            });
+          }
+        };
+        table.on('click.dt', 'tbody td', function() {
+          var $this = $(this), info = tweakCellIndex(table.cell(this));
+          if ($this.hasClass(selClass)) {
+            $this.removeClass(selClass);
+            selected3.splice(findIndex([info.row, info.col], selected3), 1);
+          } else {
+            if (selMode === 'single') $(table.cells().nodes()).removeClass(selClass);
+            $this.addClass(selClass);
+            selected3 = selMode === 'single' ? [[info.row, info.col]] :
+              unique(selected3.concat([[info.row, info.col]]));
+          }
+          selectCells(false); // must call this to update selected3 based on selectable3
+          changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+        });
+        selectCells(false);  // in case users have specified pre-selected columns
+        changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+
+        if (server) table.on('draw.dt', function(e) { selectCells(false); });
+        methods.selectCells = function(selected, ignoreSelectable) {
+          selected3 = selected ? selected : [];
+          selectCells(ignoreSelectable);
+          changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+        }
+      }
+    }
+
+    // expose some table info to Shiny
+    var updateTableInfo = function(e, settings) {
+      // TODO: is anyone interested in the page info?
+      // changeInput('page_info', table.page.info());
+      var updateRowInfo = function(id, modifier) {
+        var idx;
+        if (server) {
+          idx = modifier.page === 'current' ? DT_rows_current : DT_rows_all;
+        } else {
+          var rows = table.rows($.extend({
+            search: 'applied',
+            page: 'all'
+          }, modifier));
+          idx = addOne(rows.indexes().toArray());
+        }
+        changeInput('rows' + '_' + id, idx);
+      };
+      updateRowInfo('current', {page: 'current'});
+      updateRowInfo('all', {});
+    }
+    table.on('draw.dt', updateTableInfo);
+    updateTableInfo();
+
+    // state info
+    table.on('draw.dt column-visibility.dt', function() {
+      changeInput('state', table.state());
+    });
+    changeInput('state', table.state());
+
+    // search info
+    var updateSearchInfo = function() {
+      changeInput('search', table.search());
+      if (filterRow) changeInput('search_columns', filterRow.toArray().map(function(td) {
+        return $(td).find('input').first().val();
+      }));
+    }
+    table.on('draw.dt', updateSearchInfo);
+    updateSearchInfo();
+
+    var cellInfo = function(thiz) {
+      var info = tweakCellIndex(table.cell(thiz));
+      info.value = table.cell(thiz).data();
+      return info;
+    }
+    // the current cell clicked on
+    table.on('click.dt', 'tbody td', function() {
+      changeInput('cell_clicked', cellInfo(this), null, null, {priority: 'event'});
+    })
+    changeInput('cell_clicked', {});
+
+    // do not trigger table selection when clicking on links unless they have classes
+    table.on('click.dt', 'tbody td a', function(e) {
+      if (this.className === '') e.stopPropagation();
+    });
+
+    methods.addRow = function(data, rowname, resetPaging) {
+      var n = table.columns().indexes().length, d = n - data.length;
+      if (d === 1) {
+        data = rowname.concat(data)
+      } else if (d !== 0) {
+        console.log(data);
+        console.log(table.columns().indexes());
+        throw 'New data must be of the same length as current data (' + n + ')';
+      };
+      table.row.add(data).draw(resetPaging);
+    }
+
+    methods.updateSearch = function(keywords) {
+      if (keywords.global !== null)
+        $(table.table().container()).find('input[type=search]').first()
+             .val(keywords.global).trigger('input');
+      var columns = keywords.columns;
+      if (!filterRow || columns === null) return;
+      filterRow.toArray().map(function(td, i) {
+        var v = typeof columns === 'string' ? columns : columns[i];
+        if (typeof v === 'undefined') {
+          console.log('The search keyword for column ' + i + ' is undefined')
+          return;
+        }
+        $(td).find('input').first().val(v);
+        searchColumn(i, v);
+      });
+      table.draw();
+    }
+
+    methods.hideCols = function(hide, reset) {
+      if (reset) table.columns().visible(true, false);
+      table.columns(hide).visible(false);
+    }
+
+    methods.showCols = function(show, reset) {
+      if (reset) table.columns().visible(false, false);
+      table.columns(show).visible(true);
+    }
+
+    methods.colReorder = function(order, origOrder) {
+      table.colReorder.order(order, origOrder);
+    }
+
+    methods.selectPage = function(page) {
+      if (table.page.info().pages < page || page < 1) {
+        throw 'Selected page is out of range';
+      };
+      table.page(page - 1).draw(false);
+    }
+
+    methods.reloadData = function(resetPaging, clearSelection) {
+      // empty selections first if necessary
+      if (methods.selectRows && inArray('row', clearSelection)) methods.selectRows([]);
+      if (methods.selectColumns && inArray('column', clearSelection)) methods.selectColumns([]);
+      if (methods.selectCells && inArray('cell', clearSelection)) methods.selectCells([]);
+      table.ajax.reload(null, resetPaging);
+    }
+
+    // update table filters (set new limits of sliders)
+    methods.updateFilters = function(newProps) {
+      // loop through each filter in the filter row
+      filterRow.each(function(i, td) {
+        var k = i;
+        if (filterRow.length > newProps.length) {
+          if (i === 0) return;  // first column is row names
+          k = i - 1;
+        }
+        // Update the filters to reflect the updated data.
+        // Allow "falsy" (e.g. NULL) to signify a no-op.
+        if (newProps[k]) {
+          setFilterProps(td, newProps[k]);
+        }
+      });
+    };
+
+    table.shinyMethods = methods;
+  },
+  resize: function(el, width, height, instance) {
+    if (instance.data) this.renderValue(el, instance.data, instance);
+
+    // dynamically adjust height if fillContainer = TRUE
+    if (instance.fillContainer)
+      this.fillAvailableHeight(el, height);
+
+    this.adjustWidth(el);
+  },
+
+  // dynamically set the scroll body to fill available height
+  // (used with fillContainer = TRUE)
+  fillAvailableHeight: function(el, availableHeight) {
+
+    // see how much of the table is occupied by header/footer elements
+    // and use that to compute a target scroll body height
+    var dtWrapper = $(el).find('div.dataTables_wrapper');
+    var dtScrollBody = $(el).find($('div.dataTables_scrollBody'));
+    var framingHeight = dtWrapper.innerHeight() - dtScrollBody.innerHeight();
+    var scrollBodyHeight = availableHeight - framingHeight;
+
+    // we need to set `max-height` to none as datatables library now sets this
+    // to a fixed height, disabling the ability to resize to fill the window,
+    // as it will be set to a fixed 100px under such circumstances, e.g., RStudio IDE,
+    // or FlexDashboard
+    // see https://github.com/rstudio/DT/issues/951#issuecomment-1026464509
+    dtScrollBody.css('max-height', 'none');
+    // set the height
+    dtScrollBody.height(scrollBodyHeight + 'px');
+  },
+
+  // adjust the width of columns; remove the hard-coded widths on table and the
+  // scroll header when scrollX/Y are enabled
+  adjustWidth: function(el) {
+    var $el = $(el), table = $el.data('datatable');
+    if (table) table.columns.adjust();
+    $el.find('.dataTables_scrollHeadInner').css('width', '')
+        .children('table').css('margin-left', '');
+  }
+});
+
+  if (!HTMLWidgets.shinyMode) return;
+
+  Shiny.addCustomMessageHandler('datatable-calls', function(data) {
+    var id = data.id;
+    var el = document.getElementById(id);
+    var table = el ? $(el).data('datatable') : null;
+    if (!table) {
+      console.log("Couldn't find table with id " + id);
+      return;
+    }
+
+    var methods = table.shinyMethods, call = data.call;
+    if (methods[call.method]) {
+      methods[call.method].apply(table, call.args);
+    } else {
+      console.log("Unknown method " + call.method);
+    }
+  });
+
+})();
diff --git a/docs/site_libs/datatables-binding-0.29/datatables.js b/docs/site_libs/datatables-binding-0.29/datatables.js
new file mode 100644
index 00000000..b930851b
--- /dev/null
+++ b/docs/site_libs/datatables-binding-0.29/datatables.js
@@ -0,0 +1,1515 @@
+(function() {
+
+// some helper functions: using a global object DTWidget so that it can be used
+// in JS() code, e.g. datatable(options = list(foo = JS('code'))); unlike R's
+// dynamic scoping, when 'code' is eval'ed, JavaScript does not know objects
+// from the "parent frame", e.g. JS('DTWidget') will not work unless it was made
+// a global object
+var DTWidget = {};
+
+// 123456666.7890 -> 123,456,666.7890
+var markInterval = function(d, digits, interval, mark, decMark, precision) {
+  x = precision ? d.toPrecision(digits) : d.toFixed(digits);
+  if (!/^-?[\d.]+$/.test(x)) return x;
+  var xv = x.split('.');
+  if (xv.length > 2) return x;  // should have at most one decimal point
+  xv[0] = xv[0].replace(new RegExp('\\B(?=(\\d{' + interval + '})+(?!\\d))', 'g'), mark);
+  return xv.join(decMark);
+};
+
+DTWidget.formatCurrency = function(data, currency, digits, interval, mark, decMark, before, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  var res = markInterval(d, digits, interval, mark, decMark);
+  res = before ? (/^-/.test(res) ? '-' + currency + res.replace(/^-/, '') : currency + res) :
+    res + currency;
+  return res;
+};
+
+DTWidget.formatString = function(data, prefix, suffix) {
+  var d = data;
+  if (d === null) return '';
+  return prefix + d + suffix;
+};
+
+DTWidget.formatPercentage = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d * 100, digits, interval, mark, decMark) + '%';
+};
+
+DTWidget.formatRound = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d, digits, interval, mark, decMark);
+};
+
+DTWidget.formatSignif = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d, digits, interval, mark, decMark, true);
+};
+
+DTWidget.formatDate = function(data, method, params) {
+  var d = data;
+  if (d === null) return '';
+  // (new Date('2015-10-28')).toDateString() may return 2015-10-27 because the
+  // actual time created could be like 'Tue Oct 27 2015 19:00:00 GMT-0500 (CDT)',
+  // i.e. the date-only string is treated as UTC time instead of local time
+  if ((method === 'toDateString' || method === 'toLocaleDateString') && /^\d{4,}\D\d{2}\D\d{2}$/.test(d)) {
+    d = d.split(/\D/);
+    d = new Date(d[0], d[1] - 1, d[2]);
+  } else {
+    d = new Date(d);
+  }
+  return d[method].apply(d, params);
+};
+
+window.DTWidget = DTWidget;
+
+// A helper function to update the properties of existing filters
+var setFilterProps = function(td, props) {
+  // Update enabled/disabled state
+  var $input = $(td).find('input').first();
+  var searchable = $input.data('searchable');
+  $input.prop('disabled', !searchable || props.disabled);
+
+  // Based on the filter type, set its new values
+  var type = td.getAttribute('data-type');
+  if (['factor', 'logical'].includes(type)) {
+    // Reformat the new dropdown options for use with selectize
+    var new_vals = props.params.options.map(function(item) {
+      return { text: item, value: item };
+    });
+
+    // Find the selectize object
+    var dropdown = $(td).find('.selectized').eq(0)[0].selectize;
+
+    // Note the current values
+    var old_vals = dropdown.getValue();
+
+    // Remove the existing values
+    dropdown.clearOptions();
+
+    // Add the new options
+    dropdown.addOption(new_vals);
+
+    // Preserve the existing values
+    dropdown.setValue(old_vals);
+
+  } else if (['number', 'integer', 'date', 'time'].includes(type)) {
+    // Apply internal scaling to new limits. Updating scale not yet implemented.
+    var slider = $(td).find('.noUi-target').eq(0);
+    var scale = Math.pow(10, Math.max(0, +slider.data('scale') || 0));
+    var new_vals = [props.params.min * scale, props.params.max * scale];
+
+    // Note what the new limits will be just for this filter
+    var new_lims = new_vals.slice();
+
+    // Determine the current values and limits
+    var old_vals = slider.val().map(Number);
+    var old_lims = slider.noUiSlider('options').range;
+    old_lims = [old_lims.min, old_lims.max];
+
+    // Preserve the current values if filters have been applied; otherwise, apply no filtering
+    if (old_vals[0] != old_lims[0]) {
+      new_vals[0] = Math.max(old_vals[0], new_vals[0]);
+    }
+
+    if (old_vals[1] != old_lims[1]) {
+      new_vals[1] = Math.min(old_vals[1], new_vals[1]);
+    }
+
+    // Update the endpoints of the slider
+    slider.noUiSlider({
+      start: new_vals,
+      range: {'min': new_lims[0], 'max': new_lims[1]}
+    }, true);
+  }
+};
+
+var transposeArray2D = function(a) {
+  return a.length === 0 ? a : HTMLWidgets.transposeArray2D(a);
+};
+
+var crosstalkPluginsInstalled = false;
+
+function maybeInstallCrosstalkPlugins() {
+  if (crosstalkPluginsInstalled)
+    return;
+  crosstalkPluginsInstalled = true;
+
+  $.fn.dataTable.ext.afnFiltering.push(
+    function(oSettings, aData, iDataIndex) {
+      var ctfilter = oSettings.nTable.ctfilter;
+      if (ctfilter && !ctfilter[iDataIndex])
+        return false;
+
+      var ctselect = oSettings.nTable.ctselect;
+      if (ctselect && !ctselect[iDataIndex])
+        return false;
+
+      return true;
+    }
+  );
+}
+
+HTMLWidgets.widget({
+  name: "datatables",
+  type: "output",
+  renderOnNullValue: true,
+  initialize: function(el, width, height) {
+    // in order that the type=number inputs return a number
+    $.valHooks.number = {
+      get: function(el) {
+        var value = parseFloat(el.value);
+        return isNaN(value) ? "" : value;
+      }
+    };
+    $(el).html('&nbsp;');
+    return {
+      data: null,
+      ctfilterHandle: new crosstalk.FilterHandle(),
+      ctfilterSubscription: null,
+      ctselectHandle: new crosstalk.SelectionHandle(),
+      ctselectSubscription: null
+    };
+  },
+  renderValue: function(el, data, instance) {
+    if (el.offsetWidth === 0 || el.offsetHeight === 0) {
+      instance.data = data;
+      return;
+    }
+    instance.data = null;
+    var $el = $(el);
+    $el.empty();
+
+    if (data === null) {
+      $el.append('&nbsp;');
+      // clear previous Shiny inputs (if any)
+      for (var i in instance.clearInputs) instance.clearInputs[i]();
+      instance.clearInputs = {};
+      return;
+    }
+
+    var crosstalkOptions = data.crosstalkOptions;
+    if (!crosstalkOptions) crosstalkOptions = {
+      'key': null, 'group': null
+    };
+    if (crosstalkOptions.group) {
+      maybeInstallCrosstalkPlugins();
+      instance.ctfilterHandle.setGroup(crosstalkOptions.group);
+      instance.ctselectHandle.setGroup(crosstalkOptions.group);
+    }
+
+    // if we are in the viewer then we always want to fillContainer and
+    // and autoHideNavigation (unless the user has explicitly set these)
+    if (window.HTMLWidgets.viewerMode) {
+      if (!data.hasOwnProperty("fillContainer"))
+        data.fillContainer = true;
+      if (!data.hasOwnProperty("autoHideNavigation"))
+        data.autoHideNavigation = true;
+    }
+
+    // propagate fillContainer to instance (so we have it in resize)
+    instance.fillContainer = data.fillContainer;
+
+    var cells = data.data;
+
+    if (cells instanceof Array) cells = transposeArray2D(cells);
+
+    $el.append(data.container);
+    var $table = $el.find('table');
+    if (data.class) $table.addClass(data.class);
+    if (data.caption) $table.prepend(data.caption);
+
+    if (!data.selection) data.selection = {
+      mode: 'none', selected: null, target: 'row', selectable: null
+    };
+    if (HTMLWidgets.shinyMode && data.selection.mode !== 'none' &&
+        data.selection.target === 'row+column') {
+      if ($table.children('tfoot').length === 0) {
+        $table.append($('<tfoot>'));
+        $table.find('thead tr').clone().appendTo($table.find('tfoot'));
+      }
+    }
+
+    // column filters
+    var filterRow;
+    switch (data.filter) {
+      case 'top':
+        $table.children('thead').append(data.filterHTML);
+        filterRow = $table.find('thead tr:last td');
+        break;
+      case 'bottom':
+        if ($table.children('tfoot').length === 0) {
+          $table.append($('<tfoot>'));
+        }
+        $table.children('tfoot').prepend(data.filterHTML);
+        filterRow = $table.find('tfoot tr:first td');
+        break;
+    }
+
+    var options = { searchDelay: 1000 };
+    if (cells !== null) $.extend(options, {
+      data: cells
+    });
+
+    // options for fillContainer
+    var bootstrapActive = typeof($.fn.popover) != 'undefined';
+    if (instance.fillContainer) {
+
+      // force scrollX/scrollY and turn off autoWidth
+      options.scrollX = true;
+      options.scrollY = "100px"; // can be any value, we'll adjust below
+
+      // if we aren't paginating then move around the info/filter controls
+      // to save space at the bottom and rephrase the info callback
+      if (data.options.paging === false) {
+
+        // we know how to do this cleanly for bootstrap, not so much
+        // for other themes/layouts
+        if (bootstrapActive) {
+          options.dom = "<'row'<'col-sm-4'i><'col-sm-8'f>>" +
+                        "<'row'<'col-sm-12'tr>>";
+        }
+
+        options.fnInfoCallback = function(oSettings, iStart, iEnd,
+                                           iMax, iTotal, sPre) {
+          return Number(iTotal).toLocaleString() + " records";
+        };
+      }
+    }
+
+    // auto hide navigation if requested
+    // Note, this only works on client-side processing mode as on server-side,
+    // cells (data.data) is null; In addition, we require the pageLength option
+    // being provided explicitly to enable this. Despite we may be able to deduce
+    // the default value of pageLength, it may complicate things so we'd rather
+    // put this responsiblity to users and warn them on the R side.
+    if (data.autoHideNavigation === true && data.options.paging !== false) {
+      // strip all nav if length >= cells
+      if ((cells instanceof Array) && data.options.pageLength >= cells.length)
+        options.dom = bootstrapActive ? "<'row'<'col-sm-12'tr>>" : "t";
+      // alternatively lean things out for flexdashboard mobile portrait
+      else if (bootstrapActive && window.FlexDashboard && window.FlexDashboard.isMobilePhone())
+        options.dom = "<'row'<'col-sm-12'f>>" +
+                      "<'row'<'col-sm-12'tr>>"  +
+                      "<'row'<'col-sm-12'p>>";
+    }
+
+    $.extend(true, options, data.options || {});
+
+    var searchCols = options.searchCols;
+    if (searchCols) {
+      searchCols = searchCols.map(function(x) {
+        return x === null ? '' : x.search;
+      });
+      // FIXME: this means I don't respect the escapeRegex setting
+      delete options.searchCols;
+    }
+
+    // server-side processing?
+    var server = options.serverSide === true;
+
+    // use the dataSrc function to pre-process JSON data returned from R
+    var DT_rows_all = [], DT_rows_current = [];
+    if (server && HTMLWidgets.shinyMode && typeof options.ajax === 'object' &&
+        /^session\/[\da-z]+\/dataobj/.test(options.ajax.url) && !options.ajax.dataSrc) {
+      options.ajax.dataSrc = function(json) {
+        DT_rows_all = $.makeArray(json.DT_rows_all);
+        DT_rows_current = $.makeArray(json.DT_rows_current);
+        var data = json.data;
+        if (!colReorderEnabled()) return data;
+        var table = $table.DataTable(), order = table.colReorder.order(), flag = true, i, j, row;
+        for (i = 0; i < order.length; ++i) if (order[i] !== i) flag = false;
+        if (flag) return data;
+        for (i = 0; i < data.length; ++i) {
+          row = data[i].slice();
+          for (j = 0; j < order.length; ++j) data[i][j] = row[order[j]];
+        }
+        return data;
+      };
+    }
+
+    var thiz = this;
+    if (instance.fillContainer) $table.on('init.dt', function(e) {
+      thiz.fillAvailableHeight(el, $(el).innerHeight());
+    });
+    // If the page contains serveral datatables and one of which enables colReorder,
+    // the table.colReorder.order() function will exist but throws error when called.
+    // So it seems like the only way to know if colReorder is enabled or not is to
+    // check the options.
+    var colReorderEnabled = function() { return "colReorder" in options; };
+    var table = $table.DataTable(options);
+    $el.data('datatable', table);
+
+    // Unregister previous Crosstalk event subscriptions, if they exist
+    if (instance.ctfilterSubscription) {
+      instance.ctfilterHandle.off("change", instance.ctfilterSubscription);
+      instance.ctfilterSubscription = null;
+    }
+    if (instance.ctselectSubscription) {
+      instance.ctselectHandle.off("change", instance.ctselectSubscription);
+      instance.ctselectSubscription = null;
+    }
+
+    if (!crosstalkOptions.group) {
+      $table[0].ctfilter = null;
+      $table[0].ctselect = null;
+    } else {
+      var key = crosstalkOptions.key;
+      function keysToMatches(keys) {
+        if (!keys) {
+          return null;
+        } else {
+          var selectedKeys = {};
+          for (var i = 0; i < keys.length; i++) {
+            selectedKeys[keys[i]] = true;
+          }
+          var matches = {};
+          for (var j = 0; j < key.length; j++) {
+            if (selectedKeys[key[j]])
+              matches[j] = true;
+          }
+          return matches;
+        }
+      }
+
+      function applyCrosstalkFilter(e) {
+        $table[0].ctfilter = keysToMatches(e.value);
+        table.draw();
+      }
+      instance.ctfilterSubscription = instance.ctfilterHandle.on("change", applyCrosstalkFilter);
+      applyCrosstalkFilter({value: instance.ctfilterHandle.filteredKeys});
+
+      function applyCrosstalkSelection(e) {
+        if (e.sender !== instance.ctselectHandle) {
+          table
+            .rows('.' + selClass, {search: 'applied'})
+            .nodes()
+            .to$()
+            .removeClass(selClass);
+          if (selectedRows)
+            changeInput('rows_selected', selectedRows(), void 0, true);
+        }
+
+        if (e.sender !== instance.ctselectHandle && e.value && e.value.length) {
+          var matches = keysToMatches(e.value);
+
+          // persistent selection with plotly (& leaflet)
+          var ctOpts = crosstalk.var("plotlyCrosstalkOpts").get() || {};
+          if (ctOpts.persistent === true) {
+            var matches = $.extend(matches, $table[0].ctselect);
+          }
+
+          $table[0].ctselect = matches;
+          table.draw();
+        } else {
+          if ($table[0].ctselect) {
+            $table[0].ctselect = null;
+            table.draw();
+          }
+        }
+      }
+      instance.ctselectSubscription = instance.ctselectHandle.on("change", applyCrosstalkSelection);
+      // TODO: This next line doesn't seem to work when renderDataTable is used
+      applyCrosstalkSelection({value: instance.ctselectHandle.value});
+    }
+
+    var inArray = function(val, array) {
+      return $.inArray(val, $.makeArray(array)) > -1;
+    };
+
+    // search the i-th column
+    var searchColumn = function(i, value) {
+      var regex = false, ci = true;
+      if (options.search) {
+        regex = options.search.regex,
+        ci = options.search.caseInsensitive !== false;
+      }
+      return table.column(i).search(value, regex, !regex, ci);
+    };
+
+    if (data.filter !== 'none') {
+
+      filterRow.each(function(i, td) {
+
+        var $td = $(td), type = $td.data('type'), filter;
+        var $input = $td.children('div').first().children('input');
+        var disabled = $input.prop('disabled');
+        var searchable = table.settings()[0].aoColumns[i].bSearchable;
+        $input.prop('disabled', !searchable || disabled);
+        $input.data('searchable', searchable); // for updating later
+        $input.on('input blur', function() {
+          $input.next('span').toggle(Boolean($input.val()));
+        });
+        // Bootstrap sets pointer-events to none and we won't be able to click
+        // the clear button
+        $input.next('span').css('pointer-events', 'auto').hide().click(function() {
+          $(this).hide().prev('input').val('').trigger('input').focus();
+        });
+        var searchCol;  // search string for this column
+        if (searchCols && searchCols[i]) {
+          searchCol = searchCols[i];
+          $input.val(searchCol).trigger('input');
+        }
+        var $x = $td.children('div').last();
+
+        // remove the overflow: hidden attribute of the scrollHead
+        // (otherwise the scrolling table body obscures the filters)
+        // The workaround and the discussion from
+        // https://github.com/rstudio/DT/issues/554#issuecomment-518007347
+        // Otherwise the filter selection will not be anchored to the values
+        // when the columns number is many and scrollX is enabled.
+        var scrollHead = $(el).find('.dataTables_scrollHead,.dataTables_scrollFoot');
+        var cssOverflowHead = scrollHead.css('overflow');
+        var scrollBody = $(el).find('.dataTables_scrollBody');
+        var cssOverflowBody = scrollBody.css('overflow');
+        var scrollTable = $(el).find('.dataTables_scroll');
+        var cssOverflowTable = scrollTable.css('overflow');
+        if (cssOverflowHead === 'hidden') {
+          $x.on('show hide', function(e) {
+            if (e.type === 'show') {
+              scrollHead.css('overflow', 'visible');
+              scrollBody.css('overflow', 'visible');
+              scrollTable.css('overflow-x', 'scroll');
+            } else {
+              scrollHead.css('overflow', cssOverflowHead);
+              scrollBody.css('overflow', cssOverflowBody);
+              scrollTable.css('overflow-x', cssOverflowTable);
+            }
+          });
+          $x.css('z-index', 25);
+        }
+
+        if (inArray(type, ['factor', 'logical'])) {
+          $input.on({
+            click: function() {
+              $input.parent().hide(); $x.show().trigger('show'); filter[0].selectize.focus();
+            },
+            input: function() {
+              if ($input.val() === '') filter[0].selectize.setValue([]);
+            }
+          });
+          var $input2 = $x.children('select');
+          filter = $input2.selectize({
+            options: $input2.data('options').map(function(v, i) {
+              return ({text: v, value: v});
+            }),
+            plugins: ['remove_button'],
+            hideSelected: true,
+            onChange: function(value) {
+              if (value === null) value = []; // compatibility with jQuery 3.0
+              $input.val(value.length ? JSON.stringify(value) : '');
+              if (value.length) $input.trigger('input');
+              $input.attr('title', $input.val());
+              if (server) {
+                table.column(i).search(value.length ? JSON.stringify(value) : '').draw();
+                return;
+              }
+              // turn off filter if nothing selected
+              $td.data('filter', value.length > 0);
+              table.draw();  // redraw table, and filters will be applied
+            }
+          });
+          if (searchCol) filter[0].selectize.setValue(JSON.parse(searchCol));
+          filter[0].selectize.on('blur', function() {
+            $x.hide().trigger('hide'); $input.parent().show(); $input.trigger('blur');
+          });
+          filter.next('div').css('margin-bottom', 'auto');
+        } else if (type === 'character') {
+          var fun = function() {
+            searchColumn(i, $input.val()).draw();
+          };
+          if (server) {
+            fun = $.fn.dataTable.util.throttle(fun, options.searchDelay);
+          }
+          $input.on('input', fun);
+        } else if (inArray(type, ['number', 'integer', 'date', 'time'])) {
+          var $x0 = $x;
+          $x = $x0.children('div').first();
+          $x0.css({
+            'background-color': '#fff',
+            'border': '1px #ddd solid',
+            'border-radius': '4px',
+            'padding': data.vertical ? '35px 20px': '20px 20px 10px 20px'
+          });
+          var $spans = $x0.children('span').css({
+            'margin-top': data.vertical ? '0' : '10px',
+            'white-space': 'nowrap'
+          });
+          var $span1 = $spans.first(), $span2 = $spans.last();
+          var r1 = +$x.data('min'), r2 = +$x.data('max');
+          // when the numbers are too small or have many decimal places, the
+          // slider may have numeric precision problems (#150)
+          var scale = Math.pow(10, Math.max(0, +$x.data('scale') || 0));
+          r1 = Math.round(r1 * scale); r2 = Math.round(r2 * scale);
+          var scaleBack = function(x, scale) {
+            if (scale === 1) return x;
+            var d = Math.round(Math.log(scale) / Math.log(10));
+            // to avoid problems like 3.423/100 -> 0.034230000000000003
+            return (x / scale).toFixed(d);
+          };
+          var slider_min = function() {
+            return filter.noUiSlider('options').range.min;
+          };
+          var slider_max = function() {
+            return filter.noUiSlider('options').range.max;
+          };
+          $input.on({
+            focus: function() {
+              $x0.show().trigger('show');
+              // first, make sure the slider div leaves at least 20px between
+              // the two (slider value) span's
+              $x0.width(Math.max(160, $span1.outerWidth() + $span2.outerWidth() + 20));
+              // then, if the input is really wide or slider is vertical,
+              // make the slider the same width as the input
+              if ($x0.outerWidth() < $input.outerWidth() || data.vertical) {
+                $x0.outerWidth($input.outerWidth());
+              }
+              // make sure the slider div does not reach beyond the right margin
+              if ($(window).width() < $x0.offset().left + $x0.width()) {
+                $x0.offset({
+                  'left': $input.offset().left + $input.outerWidth() - $x0.outerWidth()
+                });
+              }
+            },
+            blur: function() {
+              $x0.hide().trigger('hide');
+            },
+            input: function() {
+              if ($input.val() === '') filter.val([slider_min(), slider_max()]);
+            },
+            change: function() {
+              var v = $input.val().replace(/\s/g, '');
+              if (v === '') return;
+              v = v.split('...');
+              if (v.length !== 2) {
+                $input.parent().addClass('has-error');
+                return;
+              }
+              if (v[0] === '') v[0] = slider_min();
+              if (v[1] === '') v[1] = slider_max();
+              $input.parent().removeClass('has-error');
+              // treat date as UTC time at midnight
+              var strTime = function(x) {
+                var s = type === 'date' ? 'T00:00:00Z' : '';
+                var t = new Date(x + s).getTime();
+                // add 10 minutes to date since it does not hurt the date, and
+                // it helps avoid the tricky floating point arithmetic problems,
+                // e.g. sometimes the date may be a few milliseconds earlier
+                // than the midnight due to precision problems in noUiSlider
+                return type === 'date' ? t + 3600000 : t;
+              };
+              if (inArray(type, ['date', 'time'])) {
+                v[0] = strTime(v[0]);
+                v[1] = strTime(v[1]);
+              }
+              if (v[0] != slider_min()) v[0] *= scale;
+              if (v[1] != slider_max()) v[1] *= scale;
+              filter.val(v);
+            }
+          });
+          var formatDate = function(d, isoFmt) {
+            d = scaleBack(d, scale);
+            if (type === 'number') return d;
+            if (type === 'integer') return parseInt(d);
+            var x = new Date(+d);
+            var fmt = ('filterDateFmt' in data) ? data.filterDateFmt[i] : undefined;
+            if (fmt !== undefined && isoFmt === false) return x[fmt.method].apply(x, fmt.params);
+            if (type === 'date') {
+              var pad0 = function(x) {
+                return ('0' + x).substr(-2, 2);
+              };
+              return x.getUTCFullYear() + '-' + pad0(1 + x.getUTCMonth())
+                      + '-' + pad0(x.getUTCDate());
+            } else {
+              return x.toISOString();
+            }
+          };
+          var opts = type === 'date' ? { step: 60 * 60 * 1000 } :
+                     type === 'integer' ? { step: 1 } : {};
+
+          opts.orientation = data.vertical ? 'vertical': 'horizontal';
+          opts.direction = data.vertical ? 'rtl': 'ltr';
+
+          filter = $x.noUiSlider($.extend({
+            start: [r1, r2],
+            range: {min: r1, max: r2},
+            connect: true
+          }, opts));
+          if (scale > 1) (function() {
+            var t1 = r1, t2 = r2;
+            var val = filter.val();
+            while (val[0] > r1 || val[1] < r2) {
+              if (val[0] > r1) {
+                t1 -= val[0] - r1;
+              }
+              if (val[1] < r2) {
+                t2 += r2 - val[1];
+              }
+              filter = $x.noUiSlider($.extend({
+                start: [t1, t2],
+                range: {min: t1, max: t2},
+                connect: true
+              }, opts), true);
+              val = filter.val();
+            }
+            r1  = t1; r2 = t2;
+          })();
+          var updateSliderText = function(v1, v2) {
+            $span1.text(formatDate(v1, false)); $span2.text(formatDate(v2, false));
+          };
+          updateSliderText(r1, r2);
+          var updateSlider = function(e) {
+            var val = filter.val();
+            // turn off filter if in full range
+            $td.data('filter', val[0] > slider_min() || val[1] < slider_max());
+            var v1 = formatDate(val[0]), v2 = formatDate(val[1]), ival;
+            if ($td.data('filter')) {
+              ival = v1 + ' ... ' + v2;
+              $input.attr('title', ival).val(ival).trigger('input');
+            } else {
+              $input.attr('title', '').val('');
+            }
+            updateSliderText(val[0], val[1]);
+            if (e.type === 'slide') return;  // no searching when sliding only
+            if (server) {
+              table.column(i).search($td.data('filter') ? ival : '').draw();
+              return;
+            }
+            table.draw();
+          };
+          filter.on({
+            set: updateSlider,
+            slide: updateSlider
+          });
+        }
+
+        // server-side processing will be handled by R (or whatever server
+        // language you use); the following code is only needed for client-side
+        // processing
+        if (server) {
+          // if a search string has been pre-set, search now
+          if (searchCol) searchColumn(i, searchCol).draw();
+          return;
+        }
+
+        var customFilter = function(settings, data, dataIndex) {
+          // there is no way to attach a search function to a specific table,
+          // and we need to make sure a global search function is not applied to
+          // all tables (i.e. a range filter in a previous table should not be
+          // applied to the current table); we use the settings object to
+          // determine if we want to perform searching on the current table,
+          // since settings.sTableId will be different to different tables
+          if (table.settings()[0] !== settings) return true;
+          // no filter on this column or no need to filter this column
+          if (typeof filter === 'undefined' || !$td.data('filter')) return true;
+
+          var r = filter.val(), v, r0, r1;
+          var i_data = function(i) {
+            if (!colReorderEnabled()) return i;
+            var order = table.colReorder.order(), k;
+            for (k = 0; k < order.length; ++k) if (order[k] === i) return k;
+            return i; // in theory it will never be here...
+          }
+          v = data[i_data(i)];
+          if (type === 'number' || type === 'integer') {
+            v = parseFloat(v);
+            // how to handle NaN? currently exclude these rows
+            if (isNaN(v)) return(false);
+            r0 = parseFloat(scaleBack(r[0], scale))
+            r1 = parseFloat(scaleBack(r[1], scale));
+            if (v >= r0 && v <= r1) return true;
+          } else if (type === 'date' || type === 'time') {
+            v = new Date(v);
+            r0 = new Date(r[0] / scale); r1 = new Date(r[1] / scale);
+            if (v >= r0 && v <= r1) return true;
+          } else if (type === 'factor') {
+            if (r.length === 0 || inArray(v, r)) return true;
+          } else if (type === 'logical') {
+            if (r.length === 0) return true;
+            if (inArray(v === '' ? 'na' : v, r)) return true;
+          }
+          return false;
+        };
+
+        $.fn.dataTable.ext.search.push(customFilter);
+
+        // search for the preset search strings if it is non-empty
+        if (searchCol) {
+          if (inArray(type, ['factor', 'logical'])) {
+            filter[0].selectize.setValue(JSON.parse(searchCol));
+          } else if (type === 'character') {
+            $input.trigger('input');
+          } else if (inArray(type, ['number', 'integer', 'date', 'time'])) {
+            $input.trigger('change');
+          }
+        }
+
+      });
+
+    }
+
+    // highlight search keywords
+    var highlight = function() {
+      var body = $(table.table().body());
+      // removing the old highlighting first
+      body.unhighlight();
+
+      // don't highlight the "not found" row, so we get the rows using the api
+      if (table.rows({ filter: 'applied' }).data().length === 0) return;
+      // highlight global search keywords
+      body.highlight($.trim(table.search()).split(/\s+/));
+      // then highlight keywords from individual column filters
+      if (filterRow) filterRow.each(function(i, td) {
+        var $td = $(td), type = $td.data('type');
+        if (type !== 'character') return;
+        var $input = $td.children('div').first().children('input');
+        var column = table.column(i).nodes().to$(),
+            val = $.trim($input.val());
+        if (type !== 'character' || val === '') return;
+        column.highlight(val.split(/\s+/));
+      });
+    };
+
+    if (options.searchHighlight) {
+      table
+      .on('draw.dt.dth column-visibility.dt.dth column-reorder.dt.dth', highlight)
+      .on('destroy', function() {
+        // remove event handler
+        table.off('draw.dt.dth column-visibility.dt.dth column-reorder.dt.dth');
+      });
+
+      // Set the option for escaping regex characters in our search string.  This will be used
+      // for all future matching.
+      jQuery.fn.highlight.options.escapeRegex = (!options.search || !options.search.regex);
+
+      // initial highlight for state saved conditions and initial states
+      highlight();
+    }
+
+    // run the callback function on the table instance
+    if (typeof data.callback === 'function') data.callback(table);
+
+    // double click to edit the cell, row, column, or all cells
+    if (data.editable) table.on('dblclick.dt', 'tbody td', function(e) {
+      // only bring up the editor when the cell itself is dbclicked, and ignore
+      // other dbclick events bubbled up (e.g. from the <input>)
+      if (e.target !== this) return;
+      var target = [], immediate = false;
+      switch (data.editable.target) {
+        case 'cell':
+          target = [this];
+          immediate = true;  // edit will take effect immediately
+          break;
+        case 'row':
+          target = table.cells(table.cell(this).index().row, '*').nodes();
+          break;
+        case 'column':
+          target = table.cells('*', table.cell(this).index().column).nodes();
+          break;
+        case 'all':
+          target = table.cells().nodes();
+          break;
+        default:
+          throw 'The editable parameter must be "cell", "row", "column", or "all"';
+      }
+      var disableCols = data.editable.disable ? data.editable.disable.columns : null;
+      var numericCols = data.editable.numeric;
+      var areaCols = data.editable.area;
+      var dateCols = data.editable.date;
+      for (var i = 0; i < target.length; i++) {
+        (function(cell, current) {
+          var $cell = $(cell), html = $cell.html();
+          var _cell = table.cell(cell), value = _cell.data(), index = _cell.index().column;
+          var $input;
+          if (inArray(index, numericCols)) {
+            $input = $('<input type="number">');
+          } else if (inArray(index, areaCols)) {
+            $input = $('<textarea></textarea>');
+          } else if (inArray(index, dateCols)) {
+            $input = $('<input type="date">');
+          } else {
+            $input = $('<input type="text">');
+          }
+          if (!immediate) {
+            $cell.data('input', $input).data('html', html);
+            $input.attr('title', 'Hit Ctrl+Enter to finish editing, or Esc to cancel');
+          }
+          $input.val(value);
+          if (inArray(index, disableCols)) {
+            $input.attr('readonly', '').css('filter', 'invert(25%)');
+          }
+          $cell.empty().append($input);
+          if (cell === current) $input.focus();
+          $input.css('width', '100%');
+
+          if (immediate) $input.on('blur', function(e) {
+            var valueNew = $input.val();
+            if (valueNew !== value) {
+              _cell.data(valueNew);
+              if (HTMLWidgets.shinyMode) {
+                changeInput('cell_edit', [cellInfo(cell)], 'DT.cellInfo', null, {priority: 'event'});
+              }
+              // for server-side processing, users have to call replaceData() to update the table
+              if (!server) table.draw(false);
+            } else {
+              $cell.html(html);
+            }
+          }).on('keyup', function(e) {
+            // hit Escape to cancel editing
+            if (e.keyCode === 27) $input.trigger('blur');
+          });
+
+          // bulk edit (row, column, or all)
+          if (!immediate) $input.on('keyup', function(e) {
+            var removeInput = function($cell, restore) {
+              $cell.data('input').remove();
+              if (restore) $cell.html($cell.data('html'));
+            }
+            if (e.keyCode === 27) {
+              for (var i = 0; i < target.length; i++) {
+                removeInput($(target[i]), true);
+              }
+            } else if (e.keyCode === 13 && e.ctrlKey) {
+              // Ctrl + Enter
+              var cell, $cell, _cell, cellData = [];
+              for (var i = 0; i < target.length; i++) {
+                cell = target[i]; $cell = $(cell); _cell = table.cell(cell);
+                _cell.data($cell.data('input').val());
+                HTMLWidgets.shinyMode && cellData.push(cellInfo(cell));
+                removeInput($cell, false);
+              }
+              if (HTMLWidgets.shinyMode) {
+                changeInput('cell_edit', cellData, 'DT.cellInfo', null, {priority: "event"});
+              }
+              if (!server) table.draw(false);
+            }
+          });
+        })(target[i], this);
+      }
+    });
+
+    // interaction with shiny
+    if (!HTMLWidgets.shinyMode && !crosstalkOptions.group) return;
+
+    var methods = {};
+    var shinyData = {};
+
+    methods.updateCaption = function(caption) {
+      if (!caption) return;
+      $table.children('caption').replaceWith(caption);
+    }
+
+    // register clear functions to remove input values when the table is removed
+    instance.clearInputs = {};
+
+    var changeInput = function(id, value, type, noCrosstalk, opts) {
+      var event = id;
+      id = el.id + '_' + id;
+      if (type) id = id + ':' + type;
+      // do not update if the new value is the same as old value
+      if (event !== 'cell_edit' && !/_clicked$/.test(event) && shinyData.hasOwnProperty(id) && shinyData[id] === JSON.stringify(value))
+        return;
+      shinyData[id] = JSON.stringify(value);
+      if (HTMLWidgets.shinyMode && Shiny.setInputValue) {
+        Shiny.setInputValue(id, value, opts);
+        if (!instance.clearInputs[id]) instance.clearInputs[id] = function() {
+          Shiny.setInputValue(id, null);
+        }
+      }
+
+      // HACK
+      if (event === "rows_selected" && !noCrosstalk) {
+        if (crosstalkOptions.group) {
+          var keys = crosstalkOptions.key;
+          var selectedKeys = null;
+          if (value) {
+            selectedKeys = [];
+            for (var i = 0; i < value.length; i++) {
+              // The value array's contents use 1-based row numbers, so we must
+              // convert to 0-based before indexing into the keys array.
+              selectedKeys.push(keys[value[i] - 1]);
+            }
+          }
+          instance.ctselectHandle.set(selectedKeys);
+        }
+      }
+    };
+
+    var addOne = function(x) {
+      return x.map(function(i) { return 1 + i; });
+    };
+
+    var unique = function(x) {
+      var ux = [];
+      $.each(x, function(i, el){
+        if ($.inArray(el, ux) === -1) ux.push(el);
+      });
+      return ux;
+    }
+
+    // change the row index of a cell
+    var tweakCellIndex = function(cell) {
+      var info = cell.index();
+      // some cell may not be valid. e.g, #759
+      // when using the RowGroup extension, datatables will
+      // generate the row label and the cells are not part of
+      // the data thus contain no row/col info
+      if (info === undefined)
+        return {row: null, col: null};
+      if (server) {
+        info.row = DT_rows_current[info.row];
+      } else {
+        info.row += 1;
+      }
+      return {row: info.row, col: info.column};
+    }
+
+    var cleanSelectedValues = function() {
+      changeInput('rows_selected', []);
+      changeInput('columns_selected', []);
+      changeInput('cells_selected', transposeArray2D([]), 'shiny.matrix');
+    }
+    // #828 we should clean the selection on the server-side when the table reloads
+    cleanSelectedValues();
+
+    // a flag to indicates if select extension is initialized or not
+    var flagSelectExt = table.settings()[0]._select !== undefined;
+    // the Select extension should only be used in the client mode and
+    // when the selection.mode is set to none
+    if (data.selection.mode === 'none' && !server && flagSelectExt) {
+      var updateRowsSelected = function() {
+        var rows = table.rows({selected: true});
+        var selected = [];
+        $.each(rows.indexes().toArray(), function(i, v) {
+          selected.push(v + 1);
+        });
+        changeInput('rows_selected', selected);
+      }
+      var updateColsSelected = function() {
+        var columns = table.columns({selected: true});
+        changeInput('columns_selected', columns.indexes().toArray());
+      }
+      var updateCellsSelected = function() {
+        var cells = table.cells({selected: true});
+        var selected = [];
+        cells.every(function() {
+          var row = this.index().row;
+          var col = this.index().column;
+          selected = selected.concat([[row + 1, col]]);
+        });
+        changeInput('cells_selected', transposeArray2D(selected), 'shiny.matrix');
+      }
+      table.on('select deselect', function(e, dt, type, indexes) {
+        updateRowsSelected();
+        updateColsSelected();
+        updateCellsSelected();
+      })
+    }
+
+    var selMode = data.selection.mode, selTarget = data.selection.target;
+    var selDisable = data.selection.selectable === false;
+    if (inArray(selMode, ['single', 'multiple'])) {
+      var selClass = inArray(data.style, ['bootstrap', 'bootstrap4']) ? 'active' : 'selected';
+      // selected1: row indices; selected2: column indices
+      var initSel = function(x) {
+        if (x === null || typeof x === 'boolean' || selTarget === 'cell') {
+          return {rows: [], cols: []};
+        } else if (selTarget === 'row') {
+          return {rows: $.makeArray(x), cols: []};
+        } else if (selTarget === 'column') {
+          return {rows: [], cols: $.makeArray(x)};
+        } else if (selTarget === 'row+column') {
+          return {rows: $.makeArray(x.rows), cols: $.makeArray(x.cols)};
+        }
+      }
+      var selected = data.selection.selected;
+      var selected1 = initSel(selected).rows, selected2 = initSel(selected).cols;
+      // selectable should contain either all positive or all non-positive values, not both
+      // positive values indicate "selectable" while non-positive values means "nonselectable"
+      // the assertion is performed on R side. (only column indicides could be zero which indicates
+      // the row name)
+      var selectable = data.selection.selectable;
+      var selectable1 = initSel(selectable).rows, selectable2 = initSel(selectable).cols;
+
+      // After users reorder the rows or filter the table, we cannot use the table index
+      // directly. Instead, we need this function to find out the rows between the two clicks.
+      // If user filter the table again between the start click and the end click, the behavior
+      // would be undefined, but it should not be a problem.
+      var shiftSelRowsIndex = function(start, end) {
+        var indexes = server ? DT_rows_all : table.rows({ search: 'applied' }).indexes().toArray();
+        start = indexes.indexOf(start); end = indexes.indexOf(end);
+        // if start is larger than end, we need to swap
+        if (start > end) {
+          var tmp = end; end = start; start = tmp;
+        }
+        return indexes.slice(start, end + 1);
+      }
+
+      var serverRowIndex = function(clientRowIndex) {
+        return server ? DT_rows_current[clientRowIndex] : clientRowIndex + 1;
+      }
+
+      // row, column, or cell selection
+      var lastClickedRow;
+      if (inArray(selTarget, ['row', 'row+column'])) {
+        // Get the current selected rows. It will also
+        // update the selected1's value based on the current row selection state
+        // Note we can't put this function inside selectRows() directly,
+        // the reason is method.selectRows() will override selected1's value but this
+        // function will add rows to selected1 (keep the existing selection), which is
+        // inconsistent with column and cell selection.
+        var selectedRows = function() {
+          var rows = table.rows('.' + selClass);
+          var idx = rows.indexes().toArray();
+          if (!server) {
+            selected1 = addOne(idx);
+            return selected1;
+          }
+          idx = idx.map(function(i) {
+            return DT_rows_current[i];
+          });
+          selected1 = selMode === 'multiple' ? unique(selected1.concat(idx)) : idx;
+          return selected1;
+        }
+        // Change selected1's value based on selectable1, then refresh the row state
+        var onlyKeepSelectableRows = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected1 = [];
+            return;
+          }
+          if (selectable1.length === 0) return;
+          var nonselectable = selectable1[0] <= 0;
+          if (nonselectable) {
+            // should make selectable1 positive
+            selected1 = $(selected1).not(selectable1.map(function(i) { return -i; })).get();
+          } else {
+            selected1 = $(selected1).filter(selectable1).get();
+          }
+        }
+        // Change selected1's value based on selectable1, then
+        // refresh the row selection state according to values in selected1
+        var selectRows = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableRows();
+          table.$('tr.' + selClass).removeClass(selClass);
+          if (selected1.length === 0) return;
+          if (server) {
+            table.rows({page: 'current'}).every(function() {
+              if (inArray(DT_rows_current[this.index()], selected1)) {
+                $(this.node()).addClass(selClass);
+              }
+            });
+          } else {
+            var selected0 = selected1.map(function(i) { return i - 1; });
+            $(table.rows(selected0).nodes()).addClass(selClass);
+          }
+        }
+        table.on('mousedown.dt', 'tbody tr', function(e) {
+          var $this = $(this), thisRow = table.row(this);
+          if (selMode === 'multiple') {
+            if (e.shiftKey && lastClickedRow !== undefined) {
+              // select or de-select depends on the last clicked row's status
+              var flagSel = !$this.hasClass(selClass);
+              var crtClickedRow = serverRowIndex(thisRow.index());
+              if (server) {
+                var rowsIndex = shiftSelRowsIndex(lastClickedRow, crtClickedRow);
+                // update current page's selClass
+                rowsIndex.map(function(i) {
+                  var rowIndex = DT_rows_current.indexOf(i);
+                  if (rowIndex >= 0) {
+                    var row = table.row(rowIndex).nodes().to$();
+                    var flagRowSel = !row.hasClass(selClass);
+                    if (flagSel === flagRowSel) row.toggleClass(selClass);
+                  }
+                });
+                // update selected1
+                if (flagSel) {
+                  selected1 = unique(selected1.concat(rowsIndex));
+                } else {
+                  selected1 = selected1.filter(function(index) {
+                    return !inArray(index, rowsIndex);
+                  });
+                }
+              } else {
+                // js starts from 0
+                shiftSelRowsIndex(lastClickedRow - 1, crtClickedRow - 1).map(function(value) {
+                  var row = table.row(value).nodes().to$();
+                  var flagRowSel = !row.hasClass(selClass);
+                  if (flagSel === flagRowSel) row.toggleClass(selClass);
+                });
+              }
+              e.preventDefault();
+            } else {
+              $this.toggleClass(selClass);
+            }
+          } else {
+            if ($this.hasClass(selClass)) {
+              $this.removeClass(selClass);
+            } else {
+              table.$('tr.' + selClass).removeClass(selClass);
+              $this.addClass(selClass);
+            }
+          }
+          if (server && !$this.hasClass(selClass)) {
+            var id = DT_rows_current[thisRow.index()];
+            // remove id from selected1 since its class .selected has been removed
+            if (inArray(id, selected1)) selected1.splice($.inArray(id, selected1), 1);
+          }
+          selectedRows(); // update selected1's value based on selClass
+          selectRows(false); // only keep the selectable rows
+          changeInput('rows_selected', selected1);
+          changeInput('row_last_clicked', serverRowIndex(thisRow.index()), null, null, {priority: 'event'});
+          lastClickedRow = serverRowIndex(thisRow.index());
+        });
+        selectRows(false);  // in case users have specified pre-selected rows
+        // restore selected rows after the table is redrawn (e.g. sort/search/page);
+        // client-side tables will preserve the selections automatically; for
+        // server-side tables, we have to *real* row indices are in `selected1`
+        changeInput('rows_selected', selected1);
+        if (server) table.on('draw.dt', function(e) { selectRows(false); });
+        methods.selectRows = function(selected, ignoreSelectable) {
+          selected1 = $.makeArray(selected);
+          selectRows(ignoreSelectable);
+          changeInput('rows_selected', selected1);
+        }
+      }
+
+      if (inArray(selTarget, ['column', 'row+column'])) {
+        if (selTarget === 'row+column') {
+          $(table.columns().footer()).css('cursor', 'pointer');
+        }
+        // update selected2's value based on selectable2
+        var onlyKeepSelectableCols = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected2 = [];
+            return;
+          }
+          if (selectable2.length === 0) return;
+          var nonselectable = selectable2[0] <= 0;
+          if (nonselectable) {
+            // need to make selectable2 positive
+            selected2 = $(selected2).not(selectable2.map(function(i) { return -i; })).get();
+          } else {
+            selected2 = $(selected2).filter(selectable2).get();
+          }
+        }
+        // update selected2 and then
+        // refresh the col selection state according to values in selected2
+        var selectCols = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableCols();
+          // if selected2 is not a valide index (e.g., larger than the column number)
+          // table.columns(selected2) will fail and result in a blank table
+          // this is different from the table.rows(), where the out-of-range indexes
+          // doesn't affect at all
+          selected2 = $(selected2).filter(table.columns().indexes()).get();
+          table.columns().nodes().flatten().to$().removeClass(selClass);
+          if (selected2.length > 0)
+            table.columns(selected2).nodes().flatten().to$().addClass(selClass);
+        }
+        var callback = function() {
+          var colIdx = selTarget === 'column' ? table.cell(this).index().column :
+              $.inArray(this, table.columns().footer()),
+              thisCol = $(table.column(colIdx).nodes());
+          if (colIdx === -1) return;
+          if (thisCol.hasClass(selClass)) {
+            thisCol.removeClass(selClass);
+            selected2.splice($.inArray(colIdx, selected2), 1);
+          } else {
+            if (selMode === 'single') $(table.cells().nodes()).removeClass(selClass);
+            thisCol.addClass(selClass);
+            selected2 = selMode === 'single' ? [colIdx] : unique(selected2.concat([colIdx]));
+          }
+          selectCols(false); // update selected2 based on selectable
+          changeInput('columns_selected', selected2);
+        }
+        if (selTarget === 'column') {
+          $(table.table().body()).on('click.dt', 'td', callback);
+        } else {
+          $(table.table().footer()).on('click.dt', 'tr th', callback);
+        }
+        selectCols(false);  // in case users have specified pre-selected columns
+        changeInput('columns_selected', selected2);
+        if (server) table.on('draw.dt', function(e) { selectCols(false); });
+        methods.selectColumns = function(selected, ignoreSelectable) {
+          selected2 = $.makeArray(selected);
+          selectCols(ignoreSelectable);
+          changeInput('columns_selected', selected2);
+        }
+      }
+
+      if (selTarget === 'cell') {
+        var selected3 = [], selectable3 = [];
+        if (selected !== null) selected3 = selected;
+        if (selectable !== null && typeof selectable !== 'boolean') selectable3 = selectable;
+        var findIndex = function(ij, sel) {
+          for (var i = 0; i < sel.length; i++) {
+            if (ij[0] === sel[i][0] && ij[1] === sel[i][1]) return i;
+          }
+          return -1;
+        }
+         // Change selected3's value based on selectable3, then refresh the cell state
+        var onlyKeepSelectableCells = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected3 = [];
+            return;
+          }
+          if (selectable3.length === 0) return;
+          var nonselectable = selectable3[0][0] <= 0;
+          var out = [];
+          if (nonselectable) {
+            selected3.map(function(ij) {
+              // should make selectable3 positive
+              if (findIndex([-ij[0], -ij[1]], selectable3) === -1) { out.push(ij); }
+            });
+          } else {
+            selected3.map(function(ij) {
+              if (findIndex(ij, selectable3) > -1) { out.push(ij); }
+            });
+          }
+          selected3 = out;
+        }
+        // Change selected3's value based on selectable3, then
+        // refresh the cell selection state according to values in selected3
+        var selectCells = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableCells();
+          table.$('td.' + selClass).removeClass(selClass);
+          if (selected3.length === 0) return;
+          if (server) {
+            table.cells({page: 'current'}).every(function() {
+              var info = tweakCellIndex(this);
+              if (findIndex([info.row, info.col], selected3) > -1)
+                $(this.node()).addClass(selClass);
+            });
+          } else {
+            selected3.map(function(ij) {
+              $(table.cell(ij[0] - 1, ij[1]).node()).addClass(selClass);
+            });
+          }
+        };
+        table.on('click.dt', 'tbody td', function() {
+          var $this = $(this), info = tweakCellIndex(table.cell(this));
+          if ($this.hasClass(selClass)) {
+            $this.removeClass(selClass);
+            selected3.splice(findIndex([info.row, info.col], selected3), 1);
+          } else {
+            if (selMode === 'single') $(table.cells().nodes()).removeClass(selClass);
+            $this.addClass(selClass);
+            selected3 = selMode === 'single' ? [[info.row, info.col]] :
+              unique(selected3.concat([[info.row, info.col]]));
+          }
+          selectCells(false); // must call this to update selected3 based on selectable3
+          changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+        });
+        selectCells(false);  // in case users have specified pre-selected columns
+        changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+
+        if (server) table.on('draw.dt', function(e) { selectCells(false); });
+        methods.selectCells = function(selected, ignoreSelectable) {
+          selected3 = selected ? selected : [];
+          selectCells(ignoreSelectable);
+          changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+        }
+      }
+    }
+
+    // expose some table info to Shiny
+    var updateTableInfo = function(e, settings) {
+      // TODO: is anyone interested in the page info?
+      // changeInput('page_info', table.page.info());
+      var updateRowInfo = function(id, modifier) {
+        var idx;
+        if (server) {
+          idx = modifier.page === 'current' ? DT_rows_current : DT_rows_all;
+        } else {
+          var rows = table.rows($.extend({
+            search: 'applied',
+            page: 'all'
+          }, modifier));
+          idx = addOne(rows.indexes().toArray());
+        }
+        changeInput('rows' + '_' + id, idx);
+      };
+      updateRowInfo('current', {page: 'current'});
+      updateRowInfo('all', {});
+    }
+    table.on('draw.dt', updateTableInfo);
+    updateTableInfo();
+
+    // state info
+    table.on('draw.dt column-visibility.dt', function() {
+      changeInput('state', table.state());
+    });
+    changeInput('state', table.state());
+
+    // search info
+    var updateSearchInfo = function() {
+      changeInput('search', table.search());
+      if (filterRow) changeInput('search_columns', filterRow.toArray().map(function(td) {
+        return $(td).find('input').first().val();
+      }));
+    }
+    table.on('draw.dt', updateSearchInfo);
+    updateSearchInfo();
+
+    var cellInfo = function(thiz) {
+      var info = tweakCellIndex(table.cell(thiz));
+      info.value = table.cell(thiz).data();
+      return info;
+    }
+    // the current cell clicked on
+    table.on('click.dt', 'tbody td', function() {
+      changeInput('cell_clicked', cellInfo(this), null, null, {priority: 'event'});
+    })
+    changeInput('cell_clicked', {});
+
+    // do not trigger table selection when clicking on links unless they have classes
+    table.on('click.dt', 'tbody td a', function(e) {
+      if (this.className === '') e.stopPropagation();
+    });
+
+    methods.addRow = function(data, rowname, resetPaging) {
+      var n = table.columns().indexes().length, d = n - data.length;
+      if (d === 1) {
+        data = rowname.concat(data)
+      } else if (d !== 0) {
+        console.log(data);
+        console.log(table.columns().indexes());
+        throw 'New data must be of the same length as current data (' + n + ')';
+      };
+      table.row.add(data).draw(resetPaging);
+    }
+
+    methods.updateSearch = function(keywords) {
+      if (keywords.global !== null)
+        $(table.table().container()).find('input[type=search]').first()
+             .val(keywords.global).trigger('input');
+      var columns = keywords.columns;
+      if (!filterRow || columns === null) return;
+      filterRow.toArray().map(function(td, i) {
+        var v = typeof columns === 'string' ? columns : columns[i];
+        if (typeof v === 'undefined') {
+          console.log('The search keyword for column ' + i + ' is undefined')
+          return;
+        }
+        $(td).find('input').first().val(v);
+        searchColumn(i, v);
+      });
+      table.draw();
+    }
+
+    methods.hideCols = function(hide, reset) {
+      if (reset) table.columns().visible(true, false);
+      table.columns(hide).visible(false);
+    }
+
+    methods.showCols = function(show, reset) {
+      if (reset) table.columns().visible(false, false);
+      table.columns(show).visible(true);
+    }
+
+    methods.colReorder = function(order, origOrder) {
+      table.colReorder.order(order, origOrder);
+    }
+
+    methods.selectPage = function(page) {
+      if (table.page.info().pages < page || page < 1) {
+        throw 'Selected page is out of range';
+      };
+      table.page(page - 1).draw(false);
+    }
+
+    methods.reloadData = function(resetPaging, clearSelection) {
+      // empty selections first if necessary
+      if (methods.selectRows && inArray('row', clearSelection)) methods.selectRows([]);
+      if (methods.selectColumns && inArray('column', clearSelection)) methods.selectColumns([]);
+      if (methods.selectCells && inArray('cell', clearSelection)) methods.selectCells([]);
+      table.ajax.reload(null, resetPaging);
+    }
+
+    // update table filters (set new limits of sliders)
+    methods.updateFilters = function(newProps) {
+      // loop through each filter in the filter row
+      filterRow.each(function(i, td) {
+        var k = i;
+        if (filterRow.length > newProps.length) {
+          if (i === 0) return;  // first column is row names
+          k = i - 1;
+        }
+        // Update the filters to reflect the updated data.
+        // Allow "falsy" (e.g. NULL) to signify a no-op.
+        if (newProps[k]) {
+          setFilterProps(td, newProps[k]);
+        }
+      });
+    };
+
+    table.shinyMethods = methods;
+  },
+  resize: function(el, width, height, instance) {
+    if (instance.data) this.renderValue(el, instance.data, instance);
+
+    // dynamically adjust height if fillContainer = TRUE
+    if (instance.fillContainer)
+      this.fillAvailableHeight(el, height);
+
+    this.adjustWidth(el);
+  },
+
+  // dynamically set the scroll body to fill available height
+  // (used with fillContainer = TRUE)
+  fillAvailableHeight: function(el, availableHeight) {
+
+    // see how much of the table is occupied by header/footer elements
+    // and use that to compute a target scroll body height
+    var dtWrapper = $(el).find('div.dataTables_wrapper');
+    var dtScrollBody = $(el).find($('div.dataTables_scrollBody'));
+    var framingHeight = dtWrapper.innerHeight() - dtScrollBody.innerHeight();
+    var scrollBodyHeight = availableHeight - framingHeight;
+
+    // we need to set `max-height` to none as datatables library now sets this
+    // to a fixed height, disabling the ability to resize to fill the window,
+    // as it will be set to a fixed 100px under such circumstances, e.g., RStudio IDE,
+    // or FlexDashboard
+    // see https://github.com/rstudio/DT/issues/951#issuecomment-1026464509
+    dtScrollBody.css('max-height', 'none');
+    // set the height
+    dtScrollBody.height(scrollBodyHeight + 'px');
+  },
+
+  // adjust the width of columns; remove the hard-coded widths on table and the
+  // scroll header when scrollX/Y are enabled
+  adjustWidth: function(el) {
+    var $el = $(el), table = $el.data('datatable');
+    if (table) table.columns.adjust();
+    $el.find('.dataTables_scrollHeadInner').css('width', '')
+        .children('table').css('margin-left', '');
+  }
+});
+
+  if (!HTMLWidgets.shinyMode) return;
+
+  Shiny.addCustomMessageHandler('datatable-calls', function(data) {
+    var id = data.id;
+    var el = document.getElementById(id);
+    var table = el ? $(el).data('datatable') : null;
+    if (!table) {
+      console.log("Couldn't find table with id " + id);
+      return;
+    }
+
+    var methods = table.shinyMethods, call = data.call;
+    if (methods[call.method]) {
+      methods[call.method].apply(table, call.args);
+    } else {
+      console.log("Unknown method " + call.method);
+    }
+  });
+
+})();
diff --git a/docs/site_libs/datatables-binding-0.30/datatables.js b/docs/site_libs/datatables-binding-0.30/datatables.js
new file mode 100644
index 00000000..d968d8be
--- /dev/null
+++ b/docs/site_libs/datatables-binding-0.30/datatables.js
@@ -0,0 +1,1517 @@
+(function() {
+
+// some helper functions: using a global object DTWidget so that it can be used
+// in JS() code, e.g. datatable(options = list(foo = JS('code'))); unlike R's
+// dynamic scoping, when 'code' is eval'ed, JavaScript does not know objects
+// from the "parent frame", e.g. JS('DTWidget') will not work unless it was made
+// a global object
+var DTWidget = {};
+
+// 123456666.7890 -> 123,456,666.7890
+var markInterval = function(d, digits, interval, mark, decMark, precision) {
+  x = precision ? d.toPrecision(digits) : d.toFixed(digits);
+  if (!/^-?[\d.]+$/.test(x)) return x;
+  var xv = x.split('.');
+  if (xv.length > 2) return x;  // should have at most one decimal point
+  xv[0] = xv[0].replace(new RegExp('\\B(?=(\\d{' + interval + '})+(?!\\d))', 'g'), mark);
+  return xv.join(decMark);
+};
+
+DTWidget.formatCurrency = function(data, currency, digits, interval, mark, decMark, before, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  var res = markInterval(d, digits, interval, mark, decMark);
+  res = before ? (/^-/.test(res) ? '-' + currency + res.replace(/^-/, '') : currency + res) :
+    res + currency;
+  return res;
+};
+
+DTWidget.formatString = function(data, prefix, suffix) {
+  var d = data;
+  if (d === null) return '';
+  return prefix + d + suffix;
+};
+
+DTWidget.formatPercentage = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d * 100, digits, interval, mark, decMark) + '%';
+};
+
+DTWidget.formatRound = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d, digits, interval, mark, decMark);
+};
+
+DTWidget.formatSignif = function(data, digits, interval, mark, decMark, zeroPrint) {
+  var d = parseFloat(data);
+  if (isNaN(d)) return '';
+  if (zeroPrint !== null && d === 0.0) return zeroPrint;
+  return markInterval(d, digits, interval, mark, decMark, true);
+};
+
+DTWidget.formatDate = function(data, method, params) {
+  var d = data;
+  if (d === null) return '';
+  // (new Date('2015-10-28')).toDateString() may return 2015-10-27 because the
+  // actual time created could be like 'Tue Oct 27 2015 19:00:00 GMT-0500 (CDT)',
+  // i.e. the date-only string is treated as UTC time instead of local time
+  if ((method === 'toDateString' || method === 'toLocaleDateString') && /^\d{4,}\D\d{2}\D\d{2}$/.test(d)) {
+    d = d.split(/\D/);
+    d = new Date(d[0], d[1] - 1, d[2]);
+  } else {
+    d = new Date(d);
+  }
+  return d[method].apply(d, params);
+};
+
+window.DTWidget = DTWidget;
+
+// A helper function to update the properties of existing filters
+var setFilterProps = function(td, props) {
+  // Update enabled/disabled state
+  var $input = $(td).find('input').first();
+  var searchable = $input.data('searchable');
+  $input.prop('disabled', !searchable || props.disabled);
+
+  // Based on the filter type, set its new values
+  var type = td.getAttribute('data-type');
+  if (['factor', 'logical'].includes(type)) {
+    // Reformat the new dropdown options for use with selectize
+    var new_vals = props.params.options.map(function(item) {
+      return { text: item, value: item };
+    });
+
+    // Find the selectize object
+    var dropdown = $(td).find('.selectized').eq(0)[0].selectize;
+
+    // Note the current values
+    var old_vals = dropdown.getValue();
+
+    // Remove the existing values
+    dropdown.clearOptions();
+
+    // Add the new options
+    dropdown.addOption(new_vals);
+
+    // Preserve the existing values
+    dropdown.setValue(old_vals);
+
+  } else if (['number', 'integer', 'date', 'time'].includes(type)) {
+    // Apply internal scaling to new limits. Updating scale not yet implemented.
+    var slider = $(td).find('.noUi-target').eq(0);
+    var scale = Math.pow(10, Math.max(0, +slider.data('scale') || 0));
+    var new_vals = [props.params.min * scale, props.params.max * scale];
+
+    // Note what the new limits will be just for this filter
+    var new_lims = new_vals.slice();
+
+    // Determine the current values and limits
+    var old_vals = slider.val().map(Number);
+    var old_lims = slider.noUiSlider('options').range;
+    old_lims = [old_lims.min, old_lims.max];
+
+    // Preserve the current values if filters have been applied; otherwise, apply no filtering
+    if (old_vals[0] != old_lims[0]) {
+      new_vals[0] = Math.max(old_vals[0], new_vals[0]);
+    }
+
+    if (old_vals[1] != old_lims[1]) {
+      new_vals[1] = Math.min(old_vals[1], new_vals[1]);
+    }
+
+    // Update the endpoints of the slider
+    slider.noUiSlider({
+      start: new_vals,
+      range: {'min': new_lims[0], 'max': new_lims[1]}
+    }, true);
+  }
+};
+
+var transposeArray2D = function(a) {
+  return a.length === 0 ? a : HTMLWidgets.transposeArray2D(a);
+};
+
+var crosstalkPluginsInstalled = false;
+
+function maybeInstallCrosstalkPlugins() {
+  if (crosstalkPluginsInstalled)
+    return;
+  crosstalkPluginsInstalled = true;
+
+  $.fn.dataTable.ext.afnFiltering.push(
+    function(oSettings, aData, iDataIndex) {
+      var ctfilter = oSettings.nTable.ctfilter;
+      if (ctfilter && !ctfilter[iDataIndex])
+        return false;
+
+      var ctselect = oSettings.nTable.ctselect;
+      if (ctselect && !ctselect[iDataIndex])
+        return false;
+
+      return true;
+    }
+  );
+}
+
+HTMLWidgets.widget({
+  name: "datatables",
+  type: "output",
+  renderOnNullValue: true,
+  initialize: function(el, width, height) {
+    // in order that the type=number inputs return a number
+    $.valHooks.number = {
+      get: function(el) {
+        var value = parseFloat(el.value);
+        return isNaN(value) ? "" : value;
+      }
+    };
+    $(el).html('&nbsp;');
+    return {
+      data: null,
+      ctfilterHandle: new crosstalk.FilterHandle(),
+      ctfilterSubscription: null,
+      ctselectHandle: new crosstalk.SelectionHandle(),
+      ctselectSubscription: null
+    };
+  },
+  renderValue: function(el, data, instance) {
+    if (el.offsetWidth === 0 || el.offsetHeight === 0) {
+      instance.data = data;
+      return;
+    }
+    instance.data = null;
+    var $el = $(el);
+    $el.empty();
+
+    if (data === null) {
+      $el.append('&nbsp;');
+      // clear previous Shiny inputs (if any)
+      for (var i in instance.clearInputs) instance.clearInputs[i]();
+      instance.clearInputs = {};
+      return;
+    }
+
+    var crosstalkOptions = data.crosstalkOptions;
+    if (!crosstalkOptions) crosstalkOptions = {
+      'key': null, 'group': null
+    };
+    if (crosstalkOptions.group) {
+      maybeInstallCrosstalkPlugins();
+      instance.ctfilterHandle.setGroup(crosstalkOptions.group);
+      instance.ctselectHandle.setGroup(crosstalkOptions.group);
+    }
+
+    // if we are in the viewer then we always want to fillContainer and
+    // and autoHideNavigation (unless the user has explicitly set these)
+    if (window.HTMLWidgets.viewerMode) {
+      if (!data.hasOwnProperty("fillContainer"))
+        data.fillContainer = true;
+      if (!data.hasOwnProperty("autoHideNavigation"))
+        data.autoHideNavigation = true;
+    }
+
+    // propagate fillContainer to instance (so we have it in resize)
+    instance.fillContainer = data.fillContainer;
+
+    var cells = data.data;
+
+    if (cells instanceof Array) cells = transposeArray2D(cells);
+
+    $el.append(data.container);
+    var $table = $el.find('table');
+    if (data.class) $table.addClass(data.class);
+    if (data.caption) $table.prepend(data.caption);
+
+    if (!data.selection) data.selection = {
+      mode: 'none', selected: null, target: 'row', selectable: null
+    };
+    if (HTMLWidgets.shinyMode && data.selection.mode !== 'none' &&
+        data.selection.target === 'row+column') {
+      if ($table.children('tfoot').length === 0) {
+        $table.append($('<tfoot>'));
+        $table.find('thead tr').clone().appendTo($table.find('tfoot'));
+      }
+    }
+
+    // column filters
+    var filterRow;
+    switch (data.filter) {
+      case 'top':
+        $table.children('thead').append(data.filterHTML);
+        filterRow = $table.find('thead tr:last td');
+        break;
+      case 'bottom':
+        if ($table.children('tfoot').length === 0) {
+          $table.append($('<tfoot>'));
+        }
+        $table.children('tfoot').prepend(data.filterHTML);
+        filterRow = $table.find('tfoot tr:first td');
+        break;
+    }
+
+    var options = { searchDelay: 1000 };
+    if (cells !== null) $.extend(options, {
+      data: cells
+    });
+
+    // options for fillContainer
+    var bootstrapActive = typeof($.fn.popover) != 'undefined';
+    if (instance.fillContainer) {
+
+      // force scrollX/scrollY and turn off autoWidth
+      options.scrollX = true;
+      options.scrollY = "100px"; // can be any value, we'll adjust below
+
+      // if we aren't paginating then move around the info/filter controls
+      // to save space at the bottom and rephrase the info callback
+      if (data.options.paging === false) {
+
+        // we know how to do this cleanly for bootstrap, not so much
+        // for other themes/layouts
+        if (bootstrapActive) {
+          options.dom = "<'row'<'col-sm-4'i><'col-sm-8'f>>" +
+                        "<'row'<'col-sm-12'tr>>";
+        }
+
+        options.fnInfoCallback = function(oSettings, iStart, iEnd,
+                                           iMax, iTotal, sPre) {
+          return Number(iTotal).toLocaleString() + " records";
+        };
+      }
+    }
+
+    // auto hide navigation if requested
+    // Note, this only works on client-side processing mode as on server-side,
+    // cells (data.data) is null; In addition, we require the pageLength option
+    // being provided explicitly to enable this. Despite we may be able to deduce
+    // the default value of pageLength, it may complicate things so we'd rather
+    // put this responsiblity to users and warn them on the R side.
+    if (data.autoHideNavigation === true && data.options.paging !== false) {
+      // strip all nav if length >= cells
+      if ((cells instanceof Array) && data.options.pageLength >= cells.length)
+        options.dom = bootstrapActive ? "<'row'<'col-sm-12'tr>>" : "t";
+      // alternatively lean things out for flexdashboard mobile portrait
+      else if (bootstrapActive && window.FlexDashboard && window.FlexDashboard.isMobilePhone())
+        options.dom = "<'row'<'col-sm-12'f>>" +
+                      "<'row'<'col-sm-12'tr>>"  +
+                      "<'row'<'col-sm-12'p>>";
+    }
+
+    $.extend(true, options, data.options || {});
+
+    var searchCols = options.searchCols;
+    if (searchCols) {
+      searchCols = searchCols.map(function(x) {
+        return x === null ? '' : x.search;
+      });
+      // FIXME: this means I don't respect the escapeRegex setting
+      delete options.searchCols;
+    }
+
+    // server-side processing?
+    var server = options.serverSide === true;
+
+    // use the dataSrc function to pre-process JSON data returned from R
+    var DT_rows_all = [], DT_rows_current = [];
+    if (server && HTMLWidgets.shinyMode && typeof options.ajax === 'object' &&
+        /^session\/[\da-z]+\/dataobj/.test(options.ajax.url) && !options.ajax.dataSrc) {
+      options.ajax.dataSrc = function(json) {
+        DT_rows_all = $.makeArray(json.DT_rows_all);
+        DT_rows_current = $.makeArray(json.DT_rows_current);
+        var data = json.data;
+        if (!colReorderEnabled()) return data;
+        var table = $table.DataTable(), order = table.colReorder.order(), flag = true, i, j, row;
+        for (i = 0; i < order.length; ++i) if (order[i] !== i) flag = false;
+        if (flag) return data;
+        for (i = 0; i < data.length; ++i) {
+          row = data[i].slice();
+          for (j = 0; j < order.length; ++j) data[i][j] = row[order[j]];
+        }
+        return data;
+      };
+    }
+
+    var thiz = this;
+    if (instance.fillContainer) $table.on('init.dt', function(e) {
+      thiz.fillAvailableHeight(el, $(el).innerHeight());
+    });
+    // If the page contains serveral datatables and one of which enables colReorder,
+    // the table.colReorder.order() function will exist but throws error when called.
+    // So it seems like the only way to know if colReorder is enabled or not is to
+    // check the options.
+    var colReorderEnabled = function() { return "colReorder" in options; };
+    var table = $table.DataTable(options);
+    $el.data('datatable', table);
+
+    // Unregister previous Crosstalk event subscriptions, if they exist
+    if (instance.ctfilterSubscription) {
+      instance.ctfilterHandle.off("change", instance.ctfilterSubscription);
+      instance.ctfilterSubscription = null;
+    }
+    if (instance.ctselectSubscription) {
+      instance.ctselectHandle.off("change", instance.ctselectSubscription);
+      instance.ctselectSubscription = null;
+    }
+
+    if (!crosstalkOptions.group) {
+      $table[0].ctfilter = null;
+      $table[0].ctselect = null;
+    } else {
+      var key = crosstalkOptions.key;
+      function keysToMatches(keys) {
+        if (!keys) {
+          return null;
+        } else {
+          var selectedKeys = {};
+          for (var i = 0; i < keys.length; i++) {
+            selectedKeys[keys[i]] = true;
+          }
+          var matches = {};
+          for (var j = 0; j < key.length; j++) {
+            if (selectedKeys[key[j]])
+              matches[j] = true;
+          }
+          return matches;
+        }
+      }
+
+      function applyCrosstalkFilter(e) {
+        $table[0].ctfilter = keysToMatches(e.value);
+        table.draw();
+      }
+      instance.ctfilterSubscription = instance.ctfilterHandle.on("change", applyCrosstalkFilter);
+      applyCrosstalkFilter({value: instance.ctfilterHandle.filteredKeys});
+
+      function applyCrosstalkSelection(e) {
+        if (e.sender !== instance.ctselectHandle) {
+          table
+            .rows('.' + selClass, {search: 'applied'})
+            .nodes()
+            .to$()
+            .removeClass(selClass);
+          if (selectedRows)
+            changeInput('rows_selected', selectedRows(), void 0, true);
+        }
+
+        if (e.sender !== instance.ctselectHandle && e.value && e.value.length) {
+          var matches = keysToMatches(e.value);
+
+          // persistent selection with plotly (& leaflet)
+          var ctOpts = crosstalk.var("plotlyCrosstalkOpts").get() || {};
+          if (ctOpts.persistent === true) {
+            var matches = $.extend(matches, $table[0].ctselect);
+          }
+
+          $table[0].ctselect = matches;
+          table.draw();
+        } else {
+          if ($table[0].ctselect) {
+            $table[0].ctselect = null;
+            table.draw();
+          }
+        }
+      }
+      instance.ctselectSubscription = instance.ctselectHandle.on("change", applyCrosstalkSelection);
+      // TODO: This next line doesn't seem to work when renderDataTable is used
+      applyCrosstalkSelection({value: instance.ctselectHandle.value});
+    }
+
+    var inArray = function(val, array) {
+      return $.inArray(val, $.makeArray(array)) > -1;
+    };
+
+    // search the i-th column
+    var searchColumn = function(i, value) {
+      var regex = false, ci = true;
+      if (options.search) {
+        regex = options.search.regex,
+        ci = options.search.caseInsensitive !== false;
+      }
+      return table.column(i).search(value, regex, !regex, ci);
+    };
+
+    if (data.filter !== 'none') {
+
+      filterRow.each(function(i, td) {
+
+        var $td = $(td), type = $td.data('type'), filter;
+        var $input = $td.children('div').first().children('input');
+        var disabled = $input.prop('disabled');
+        var searchable = table.settings()[0].aoColumns[i].bSearchable;
+        $input.prop('disabled', !searchable || disabled);
+        $input.data('searchable', searchable); // for updating later
+        $input.on('input blur', function() {
+          $input.next('span').toggle(Boolean($input.val()));
+        });
+        // Bootstrap sets pointer-events to none and we won't be able to click
+        // the clear button
+        $input.next('span').css('pointer-events', 'auto').hide().click(function() {
+          $(this).hide().prev('input').val('').trigger('input').focus();
+        });
+        var searchCol;  // search string for this column
+        if (searchCols && searchCols[i]) {
+          searchCol = searchCols[i];
+          $input.val(searchCol).trigger('input');
+        }
+        var $x = $td.children('div').last();
+
+        // remove the overflow: hidden attribute of the scrollHead
+        // (otherwise the scrolling table body obscures the filters)
+        // The workaround and the discussion from
+        // https://github.com/rstudio/DT/issues/554#issuecomment-518007347
+        // Otherwise the filter selection will not be anchored to the values
+        // when the columns number is many and scrollX is enabled.
+        var scrollHead = $(el).find('.dataTables_scrollHead,.dataTables_scrollFoot');
+        var cssOverflowHead = scrollHead.css('overflow');
+        var scrollBody = $(el).find('.dataTables_scrollBody');
+        var cssOverflowBody = scrollBody.css('overflow');
+        var scrollTable = $(el).find('.dataTables_scroll');
+        var cssOverflowTable = scrollTable.css('overflow');
+        if (cssOverflowHead === 'hidden') {
+          $x.on('show hide', function(e) {
+            if (e.type === 'show') {
+              scrollHead.css('overflow', 'visible');
+              scrollBody.css('overflow', 'visible');
+              scrollTable.css('overflow-x', 'scroll');
+            } else {
+              scrollHead.css('overflow', cssOverflowHead);
+              scrollBody.css('overflow', cssOverflowBody);
+              scrollTable.css('overflow-x', cssOverflowTable);
+            }
+          });
+          $x.css('z-index', 25);
+        }
+
+        if (inArray(type, ['factor', 'logical'])) {
+          $input.on({
+            click: function() {
+              $input.parent().hide(); $x.show().trigger('show'); filter[0].selectize.focus();
+            },
+            input: function() {
+              var v1 = JSON.stringify(filter[0].selectize.getValue()), v2 = $input.val();
+              if (v1 === '[]') v1 = '';
+              if (v1 !== v2) filter[0].selectize.setValue(v2 === '' ? [] : JSON.parse(v2));
+            }
+          });
+          var $input2 = $x.children('select');
+          filter = $input2.selectize({
+            options: $input2.data('options').map(function(v, i) {
+              return ({text: v, value: v});
+            }),
+            plugins: ['remove_button'],
+            hideSelected: true,
+            onChange: function(value) {
+              if (value === null) value = []; // compatibility with jQuery 3.0
+              $input.val(value.length ? JSON.stringify(value) : '');
+              if (value.length) $input.trigger('input');
+              $input.attr('title', $input.val());
+              if (server) {
+                table.column(i).search(value.length ? JSON.stringify(value) : '').draw();
+                return;
+              }
+              // turn off filter if nothing selected
+              $td.data('filter', value.length > 0);
+              table.draw();  // redraw table, and filters will be applied
+            }
+          });
+          if (searchCol) filter[0].selectize.setValue(JSON.parse(searchCol));
+          filter[0].selectize.on('blur', function() {
+            $x.hide().trigger('hide'); $input.parent().show(); $input.trigger('blur');
+          });
+          filter.next('div').css('margin-bottom', 'auto');
+        } else if (type === 'character') {
+          var fun = function() {
+            searchColumn(i, $input.val()).draw();
+          };
+          if (server) {
+            fun = $.fn.dataTable.util.throttle(fun, options.searchDelay);
+          }
+          $input.on('input', fun);
+        } else if (inArray(type, ['number', 'integer', 'date', 'time'])) {
+          var $x0 = $x;
+          $x = $x0.children('div').first();
+          $x0.css({
+            'background-color': '#fff',
+            'border': '1px #ddd solid',
+            'border-radius': '4px',
+            'padding': data.vertical ? '35px 20px': '20px 20px 10px 20px'
+          });
+          var $spans = $x0.children('span').css({
+            'margin-top': data.vertical ? '0' : '10px',
+            'white-space': 'nowrap'
+          });
+          var $span1 = $spans.first(), $span2 = $spans.last();
+          var r1 = +$x.data('min'), r2 = +$x.data('max');
+          // when the numbers are too small or have many decimal places, the
+          // slider may have numeric precision problems (#150)
+          var scale = Math.pow(10, Math.max(0, +$x.data('scale') || 0));
+          r1 = Math.round(r1 * scale); r2 = Math.round(r2 * scale);
+          var scaleBack = function(x, scale) {
+            if (scale === 1) return x;
+            var d = Math.round(Math.log(scale) / Math.log(10));
+            // to avoid problems like 3.423/100 -> 0.034230000000000003
+            return (x / scale).toFixed(d);
+          };
+          var slider_min = function() {
+            return filter.noUiSlider('options').range.min;
+          };
+          var slider_max = function() {
+            return filter.noUiSlider('options').range.max;
+          };
+          $input.on({
+            focus: function() {
+              $x0.show().trigger('show');
+              // first, make sure the slider div leaves at least 20px between
+              // the two (slider value) span's
+              $x0.width(Math.max(160, $span1.outerWidth() + $span2.outerWidth() + 20));
+              // then, if the input is really wide or slider is vertical,
+              // make the slider the same width as the input
+              if ($x0.outerWidth() < $input.outerWidth() || data.vertical) {
+                $x0.outerWidth($input.outerWidth());
+              }
+              // make sure the slider div does not reach beyond the right margin
+              if ($(window).width() < $x0.offset().left + $x0.width()) {
+                $x0.offset({
+                  'left': $input.offset().left + $input.outerWidth() - $x0.outerWidth()
+                });
+              }
+            },
+            blur: function() {
+              $x0.hide().trigger('hide');
+            },
+            input: function() {
+              if ($input.val() === '') filter.val([slider_min(), slider_max()]);
+            },
+            change: function() {
+              var v = $input.val().replace(/\s/g, '');
+              if (v === '') return;
+              v = v.split('...');
+              if (v.length !== 2) {
+                $input.parent().addClass('has-error');
+                return;
+              }
+              if (v[0] === '') v[0] = slider_min();
+              if (v[1] === '') v[1] = slider_max();
+              $input.parent().removeClass('has-error');
+              // treat date as UTC time at midnight
+              var strTime = function(x) {
+                var s = type === 'date' ? 'T00:00:00Z' : '';
+                var t = new Date(x + s).getTime();
+                // add 10 minutes to date since it does not hurt the date, and
+                // it helps avoid the tricky floating point arithmetic problems,
+                // e.g. sometimes the date may be a few milliseconds earlier
+                // than the midnight due to precision problems in noUiSlider
+                return type === 'date' ? t + 3600000 : t;
+              };
+              if (inArray(type, ['date', 'time'])) {
+                v[0] = strTime(v[0]);
+                v[1] = strTime(v[1]);
+              }
+              if (v[0] != slider_min()) v[0] *= scale;
+              if (v[1] != slider_max()) v[1] *= scale;
+              filter.val(v);
+            }
+          });
+          var formatDate = function(d, isoFmt) {
+            d = scaleBack(d, scale);
+            if (type === 'number') return d;
+            if (type === 'integer') return parseInt(d);
+            var x = new Date(+d);
+            var fmt = ('filterDateFmt' in data) ? data.filterDateFmt[i] : undefined;
+            if (fmt !== undefined && isoFmt === false) return x[fmt.method].apply(x, fmt.params);
+            if (type === 'date') {
+              var pad0 = function(x) {
+                return ('0' + x).substr(-2, 2);
+              };
+              return x.getUTCFullYear() + '-' + pad0(1 + x.getUTCMonth())
+                      + '-' + pad0(x.getUTCDate());
+            } else {
+              return x.toISOString();
+            }
+          };
+          var opts = type === 'date' ? { step: 60 * 60 * 1000 } :
+                     type === 'integer' ? { step: 1 } : {};
+
+          opts.orientation = data.vertical ? 'vertical': 'horizontal';
+          opts.direction = data.vertical ? 'rtl': 'ltr';
+
+          filter = $x.noUiSlider($.extend({
+            start: [r1, r2],
+            range: {min: r1, max: r2},
+            connect: true
+          }, opts));
+          if (scale > 1) (function() {
+            var t1 = r1, t2 = r2;
+            var val = filter.val();
+            while (val[0] > r1 || val[1] < r2) {
+              if (val[0] > r1) {
+                t1 -= val[0] - r1;
+              }
+              if (val[1] < r2) {
+                t2 += r2 - val[1];
+              }
+              filter = $x.noUiSlider($.extend({
+                start: [t1, t2],
+                range: {min: t1, max: t2},
+                connect: true
+              }, opts), true);
+              val = filter.val();
+            }
+            r1  = t1; r2 = t2;
+          })();
+          var updateSliderText = function(v1, v2) {
+            $span1.text(formatDate(v1, false)); $span2.text(formatDate(v2, false));
+          };
+          updateSliderText(r1, r2);
+          var updateSlider = function(e) {
+            var val = filter.val();
+            // turn off filter if in full range
+            $td.data('filter', val[0] > slider_min() || val[1] < slider_max());
+            var v1 = formatDate(val[0]), v2 = formatDate(val[1]), ival;
+            if ($td.data('filter')) {
+              ival = v1 + ' ... ' + v2;
+              $input.attr('title', ival).val(ival).trigger('input');
+            } else {
+              $input.attr('title', '').val('');
+            }
+            updateSliderText(val[0], val[1]);
+            if (e.type === 'slide') return;  // no searching when sliding only
+            if (server) {
+              table.column(i).search($td.data('filter') ? ival : '').draw();
+              return;
+            }
+            table.draw();
+          };
+          filter.on({
+            set: updateSlider,
+            slide: updateSlider
+          });
+        }
+
+        // server-side processing will be handled by R (or whatever server
+        // language you use); the following code is only needed for client-side
+        // processing
+        if (server) {
+          // if a search string has been pre-set, search now
+          if (searchCol) searchColumn(i, searchCol).draw();
+          return;
+        }
+
+        var customFilter = function(settings, data, dataIndex) {
+          // there is no way to attach a search function to a specific table,
+          // and we need to make sure a global search function is not applied to
+          // all tables (i.e. a range filter in a previous table should not be
+          // applied to the current table); we use the settings object to
+          // determine if we want to perform searching on the current table,
+          // since settings.sTableId will be different to different tables
+          if (table.settings()[0] !== settings) return true;
+          // no filter on this column or no need to filter this column
+          if (typeof filter === 'undefined' || !$td.data('filter')) return true;
+
+          var r = filter.val(), v, r0, r1;
+          var i_data = function(i) {
+            if (!colReorderEnabled()) return i;
+            var order = table.colReorder.order(), k;
+            for (k = 0; k < order.length; ++k) if (order[k] === i) return k;
+            return i; // in theory it will never be here...
+          }
+          v = data[i_data(i)];
+          if (type === 'number' || type === 'integer') {
+            v = parseFloat(v);
+            // how to handle NaN? currently exclude these rows
+            if (isNaN(v)) return(false);
+            r0 = parseFloat(scaleBack(r[0], scale))
+            r1 = parseFloat(scaleBack(r[1], scale));
+            if (v >= r0 && v <= r1) return true;
+          } else if (type === 'date' || type === 'time') {
+            v = new Date(v);
+            r0 = new Date(r[0] / scale); r1 = new Date(r[1] / scale);
+            if (v >= r0 && v <= r1) return true;
+          } else if (type === 'factor') {
+            if (r.length === 0 || inArray(v, r)) return true;
+          } else if (type === 'logical') {
+            if (r.length === 0) return true;
+            if (inArray(v === '' ? 'na' : v, r)) return true;
+          }
+          return false;
+        };
+
+        $.fn.dataTable.ext.search.push(customFilter);
+
+        // search for the preset search strings if it is non-empty
+        if (searchCol) {
+          if (inArray(type, ['factor', 'logical'])) {
+            filter[0].selectize.setValue(JSON.parse(searchCol));
+          } else if (type === 'character') {
+            $input.trigger('input');
+          } else if (inArray(type, ['number', 'integer', 'date', 'time'])) {
+            $input.trigger('change');
+          }
+        }
+
+      });
+
+    }
+
+    // highlight search keywords
+    var highlight = function() {
+      var body = $(table.table().body());
+      // removing the old highlighting first
+      body.unhighlight();
+
+      // don't highlight the "not found" row, so we get the rows using the api
+      if (table.rows({ filter: 'applied' }).data().length === 0) return;
+      // highlight global search keywords
+      body.highlight($.trim(table.search()).split(/\s+/));
+      // then highlight keywords from individual column filters
+      if (filterRow) filterRow.each(function(i, td) {
+        var $td = $(td), type = $td.data('type');
+        if (type !== 'character') return;
+        var $input = $td.children('div').first().children('input');
+        var column = table.column(i).nodes().to$(),
+            val = $.trim($input.val());
+        if (type !== 'character' || val === '') return;
+        column.highlight(val.split(/\s+/));
+      });
+    };
+
+    if (options.searchHighlight) {
+      table
+      .on('draw.dt.dth column-visibility.dt.dth column-reorder.dt.dth', highlight)
+      .on('destroy', function() {
+        // remove event handler
+        table.off('draw.dt.dth column-visibility.dt.dth column-reorder.dt.dth');
+      });
+
+      // Set the option for escaping regex characters in our search string.  This will be used
+      // for all future matching.
+      jQuery.fn.highlight.options.escapeRegex = (!options.search || !options.search.regex);
+
+      // initial highlight for state saved conditions and initial states
+      highlight();
+    }
+
+    // run the callback function on the table instance
+    if (typeof data.callback === 'function') data.callback(table);
+
+    // double click to edit the cell, row, column, or all cells
+    if (data.editable) table.on('dblclick.dt', 'tbody td', function(e) {
+      // only bring up the editor when the cell itself is dbclicked, and ignore
+      // other dbclick events bubbled up (e.g. from the <input>)
+      if (e.target !== this) return;
+      var target = [], immediate = false;
+      switch (data.editable.target) {
+        case 'cell':
+          target = [this];
+          immediate = true;  // edit will take effect immediately
+          break;
+        case 'row':
+          target = table.cells(table.cell(this).index().row, '*').nodes();
+          break;
+        case 'column':
+          target = table.cells('*', table.cell(this).index().column).nodes();
+          break;
+        case 'all':
+          target = table.cells().nodes();
+          break;
+        default:
+          throw 'The editable parameter must be "cell", "row", "column", or "all"';
+      }
+      var disableCols = data.editable.disable ? data.editable.disable.columns : null;
+      var numericCols = data.editable.numeric;
+      var areaCols = data.editable.area;
+      var dateCols = data.editable.date;
+      for (var i = 0; i < target.length; i++) {
+        (function(cell, current) {
+          var $cell = $(cell), html = $cell.html();
+          var _cell = table.cell(cell), value = _cell.data(), index = _cell.index().column;
+          var $input;
+          if (inArray(index, numericCols)) {
+            $input = $('<input type="number">');
+          } else if (inArray(index, areaCols)) {
+            $input = $('<textarea></textarea>');
+          } else if (inArray(index, dateCols)) {
+            $input = $('<input type="date">');
+          } else {
+            $input = $('<input type="text">');
+          }
+          if (!immediate) {
+            $cell.data('input', $input).data('html', html);
+            $input.attr('title', 'Hit Ctrl+Enter to finish editing, or Esc to cancel');
+          }
+          $input.val(value);
+          if (inArray(index, disableCols)) {
+            $input.attr('readonly', '').css('filter', 'invert(25%)');
+          }
+          $cell.empty().append($input);
+          if (cell === current) $input.focus();
+          $input.css('width', '100%');
+
+          if (immediate) $input.on('blur', function(e) {
+            var valueNew = $input.val();
+            if (valueNew !== value) {
+              _cell.data(valueNew);
+              if (HTMLWidgets.shinyMode) {
+                changeInput('cell_edit', [cellInfo(cell)], 'DT.cellInfo', null, {priority: 'event'});
+              }
+              // for server-side processing, users have to call replaceData() to update the table
+              if (!server) table.draw(false);
+            } else {
+              $cell.html(html);
+            }
+          }).on('keyup', function(e) {
+            // hit Escape to cancel editing
+            if (e.keyCode === 27) $input.trigger('blur');
+          });
+
+          // bulk edit (row, column, or all)
+          if (!immediate) $input.on('keyup', function(e) {
+            var removeInput = function($cell, restore) {
+              $cell.data('input').remove();
+              if (restore) $cell.html($cell.data('html'));
+            }
+            if (e.keyCode === 27) {
+              for (var i = 0; i < target.length; i++) {
+                removeInput($(target[i]), true);
+              }
+            } else if (e.keyCode === 13 && e.ctrlKey) {
+              // Ctrl + Enter
+              var cell, $cell, _cell, cellData = [];
+              for (var i = 0; i < target.length; i++) {
+                cell = target[i]; $cell = $(cell); _cell = table.cell(cell);
+                _cell.data($cell.data('input').val());
+                HTMLWidgets.shinyMode && cellData.push(cellInfo(cell));
+                removeInput($cell, false);
+              }
+              if (HTMLWidgets.shinyMode) {
+                changeInput('cell_edit', cellData, 'DT.cellInfo', null, {priority: "event"});
+              }
+              if (!server) table.draw(false);
+            }
+          });
+        })(target[i], this);
+      }
+    });
+
+    // interaction with shiny
+    if (!HTMLWidgets.shinyMode && !crosstalkOptions.group) return;
+
+    var methods = {};
+    var shinyData = {};
+
+    methods.updateCaption = function(caption) {
+      if (!caption) return;
+      $table.children('caption').replaceWith(caption);
+    }
+
+    // register clear functions to remove input values when the table is removed
+    instance.clearInputs = {};
+
+    var changeInput = function(id, value, type, noCrosstalk, opts) {
+      var event = id;
+      id = el.id + '_' + id;
+      if (type) id = id + ':' + type;
+      // do not update if the new value is the same as old value
+      if (event !== 'cell_edit' && !/_clicked$/.test(event) && shinyData.hasOwnProperty(id) && shinyData[id] === JSON.stringify(value))
+        return;
+      shinyData[id] = JSON.stringify(value);
+      if (HTMLWidgets.shinyMode && Shiny.setInputValue) {
+        Shiny.setInputValue(id, value, opts);
+        if (!instance.clearInputs[id]) instance.clearInputs[id] = function() {
+          Shiny.setInputValue(id, null);
+        }
+      }
+
+      // HACK
+      if (event === "rows_selected" && !noCrosstalk) {
+        if (crosstalkOptions.group) {
+          var keys = crosstalkOptions.key;
+          var selectedKeys = null;
+          if (value) {
+            selectedKeys = [];
+            for (var i = 0; i < value.length; i++) {
+              // The value array's contents use 1-based row numbers, so we must
+              // convert to 0-based before indexing into the keys array.
+              selectedKeys.push(keys[value[i] - 1]);
+            }
+          }
+          instance.ctselectHandle.set(selectedKeys);
+        }
+      }
+    };
+
+    var addOne = function(x) {
+      return x.map(function(i) { return 1 + i; });
+    };
+
+    var unique = function(x) {
+      var ux = [];
+      $.each(x, function(i, el){
+        if ($.inArray(el, ux) === -1) ux.push(el);
+      });
+      return ux;
+    }
+
+    // change the row index of a cell
+    var tweakCellIndex = function(cell) {
+      var info = cell.index();
+      // some cell may not be valid. e.g, #759
+      // when using the RowGroup extension, datatables will
+      // generate the row label and the cells are not part of
+      // the data thus contain no row/col info
+      if (info === undefined)
+        return {row: null, col: null};
+      if (server) {
+        info.row = DT_rows_current[info.row];
+      } else {
+        info.row += 1;
+      }
+      return {row: info.row, col: info.column};
+    }
+
+    var cleanSelectedValues = function() {
+      changeInput('rows_selected', []);
+      changeInput('columns_selected', []);
+      changeInput('cells_selected', transposeArray2D([]), 'shiny.matrix');
+    }
+    // #828 we should clean the selection on the server-side when the table reloads
+    cleanSelectedValues();
+
+    // a flag to indicates if select extension is initialized or not
+    var flagSelectExt = table.settings()[0]._select !== undefined;
+    // the Select extension should only be used in the client mode and
+    // when the selection.mode is set to none
+    if (data.selection.mode === 'none' && !server && flagSelectExt) {
+      var updateRowsSelected = function() {
+        var rows = table.rows({selected: true});
+        var selected = [];
+        $.each(rows.indexes().toArray(), function(i, v) {
+          selected.push(v + 1);
+        });
+        changeInput('rows_selected', selected);
+      }
+      var updateColsSelected = function() {
+        var columns = table.columns({selected: true});
+        changeInput('columns_selected', columns.indexes().toArray());
+      }
+      var updateCellsSelected = function() {
+        var cells = table.cells({selected: true});
+        var selected = [];
+        cells.every(function() {
+          var row = this.index().row;
+          var col = this.index().column;
+          selected = selected.concat([[row + 1, col]]);
+        });
+        changeInput('cells_selected', transposeArray2D(selected), 'shiny.matrix');
+      }
+      table.on('select deselect', function(e, dt, type, indexes) {
+        updateRowsSelected();
+        updateColsSelected();
+        updateCellsSelected();
+      })
+    }
+
+    var selMode = data.selection.mode, selTarget = data.selection.target;
+    var selDisable = data.selection.selectable === false;
+    if (inArray(selMode, ['single', 'multiple'])) {
+      var selClass = inArray(data.style, ['bootstrap', 'bootstrap4']) ? 'active' : 'selected';
+      // selected1: row indices; selected2: column indices
+      var initSel = function(x) {
+        if (x === null || typeof x === 'boolean' || selTarget === 'cell') {
+          return {rows: [], cols: []};
+        } else if (selTarget === 'row') {
+          return {rows: $.makeArray(x), cols: []};
+        } else if (selTarget === 'column') {
+          return {rows: [], cols: $.makeArray(x)};
+        } else if (selTarget === 'row+column') {
+          return {rows: $.makeArray(x.rows), cols: $.makeArray(x.cols)};
+        }
+      }
+      var selected = data.selection.selected;
+      var selected1 = initSel(selected).rows, selected2 = initSel(selected).cols;
+      // selectable should contain either all positive or all non-positive values, not both
+      // positive values indicate "selectable" while non-positive values means "nonselectable"
+      // the assertion is performed on R side. (only column indicides could be zero which indicates
+      // the row name)
+      var selectable = data.selection.selectable;
+      var selectable1 = initSel(selectable).rows, selectable2 = initSel(selectable).cols;
+
+      // After users reorder the rows or filter the table, we cannot use the table index
+      // directly. Instead, we need this function to find out the rows between the two clicks.
+      // If user filter the table again between the start click and the end click, the behavior
+      // would be undefined, but it should not be a problem.
+      var shiftSelRowsIndex = function(start, end) {
+        var indexes = server ? DT_rows_all : table.rows({ search: 'applied' }).indexes().toArray();
+        start = indexes.indexOf(start); end = indexes.indexOf(end);
+        // if start is larger than end, we need to swap
+        if (start > end) {
+          var tmp = end; end = start; start = tmp;
+        }
+        return indexes.slice(start, end + 1);
+      }
+
+      var serverRowIndex = function(clientRowIndex) {
+        return server ? DT_rows_current[clientRowIndex] : clientRowIndex + 1;
+      }
+
+      // row, column, or cell selection
+      var lastClickedRow;
+      if (inArray(selTarget, ['row', 'row+column'])) {
+        // Get the current selected rows. It will also
+        // update the selected1's value based on the current row selection state
+        // Note we can't put this function inside selectRows() directly,
+        // the reason is method.selectRows() will override selected1's value but this
+        // function will add rows to selected1 (keep the existing selection), which is
+        // inconsistent with column and cell selection.
+        var selectedRows = function() {
+          var rows = table.rows('.' + selClass);
+          var idx = rows.indexes().toArray();
+          if (!server) {
+            selected1 = addOne(idx);
+            return selected1;
+          }
+          idx = idx.map(function(i) {
+            return DT_rows_current[i];
+          });
+          selected1 = selMode === 'multiple' ? unique(selected1.concat(idx)) : idx;
+          return selected1;
+        }
+        // Change selected1's value based on selectable1, then refresh the row state
+        var onlyKeepSelectableRows = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected1 = [];
+            return;
+          }
+          if (selectable1.length === 0) return;
+          var nonselectable = selectable1[0] <= 0;
+          if (nonselectable) {
+            // should make selectable1 positive
+            selected1 = $(selected1).not(selectable1.map(function(i) { return -i; })).get();
+          } else {
+            selected1 = $(selected1).filter(selectable1).get();
+          }
+        }
+        // Change selected1's value based on selectable1, then
+        // refresh the row selection state according to values in selected1
+        var selectRows = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableRows();
+          table.$('tr.' + selClass).removeClass(selClass);
+          if (selected1.length === 0) return;
+          if (server) {
+            table.rows({page: 'current'}).every(function() {
+              if (inArray(DT_rows_current[this.index()], selected1)) {
+                $(this.node()).addClass(selClass);
+              }
+            });
+          } else {
+            var selected0 = selected1.map(function(i) { return i - 1; });
+            $(table.rows(selected0).nodes()).addClass(selClass);
+          }
+        }
+        table.on('mousedown.dt', 'tbody tr', function(e) {
+          var $this = $(this), thisRow = table.row(this);
+          if (selMode === 'multiple') {
+            if (e.shiftKey && lastClickedRow !== undefined) {
+              // select or de-select depends on the last clicked row's status
+              var flagSel = !$this.hasClass(selClass);
+              var crtClickedRow = serverRowIndex(thisRow.index());
+              if (server) {
+                var rowsIndex = shiftSelRowsIndex(lastClickedRow, crtClickedRow);
+                // update current page's selClass
+                rowsIndex.map(function(i) {
+                  var rowIndex = DT_rows_current.indexOf(i);
+                  if (rowIndex >= 0) {
+                    var row = table.row(rowIndex).nodes().to$();
+                    var flagRowSel = !row.hasClass(selClass);
+                    if (flagSel === flagRowSel) row.toggleClass(selClass);
+                  }
+                });
+                // update selected1
+                if (flagSel) {
+                  selected1 = unique(selected1.concat(rowsIndex));
+                } else {
+                  selected1 = selected1.filter(function(index) {
+                    return !inArray(index, rowsIndex);
+                  });
+                }
+              } else {
+                // js starts from 0
+                shiftSelRowsIndex(lastClickedRow - 1, crtClickedRow - 1).map(function(value) {
+                  var row = table.row(value).nodes().to$();
+                  var flagRowSel = !row.hasClass(selClass);
+                  if (flagSel === flagRowSel) row.toggleClass(selClass);
+                });
+              }
+              e.preventDefault();
+            } else {
+              $this.toggleClass(selClass);
+            }
+          } else {
+            if ($this.hasClass(selClass)) {
+              $this.removeClass(selClass);
+            } else {
+              table.$('tr.' + selClass).removeClass(selClass);
+              $this.addClass(selClass);
+            }
+          }
+          if (server && !$this.hasClass(selClass)) {
+            var id = DT_rows_current[thisRow.index()];
+            // remove id from selected1 since its class .selected has been removed
+            if (inArray(id, selected1)) selected1.splice($.inArray(id, selected1), 1);
+          }
+          selectedRows(); // update selected1's value based on selClass
+          selectRows(false); // only keep the selectable rows
+          changeInput('rows_selected', selected1);
+          changeInput('row_last_clicked', serverRowIndex(thisRow.index()), null, null, {priority: 'event'});
+          lastClickedRow = serverRowIndex(thisRow.index());
+        });
+        selectRows(false);  // in case users have specified pre-selected rows
+        // restore selected rows after the table is redrawn (e.g. sort/search/page);
+        // client-side tables will preserve the selections automatically; for
+        // server-side tables, we have to *real* row indices are in `selected1`
+        changeInput('rows_selected', selected1);
+        if (server) table.on('draw.dt', function(e) { selectRows(false); });
+        methods.selectRows = function(selected, ignoreSelectable) {
+          selected1 = $.makeArray(selected);
+          selectRows(ignoreSelectable);
+          changeInput('rows_selected', selected1);
+        }
+      }
+
+      if (inArray(selTarget, ['column', 'row+column'])) {
+        if (selTarget === 'row+column') {
+          $(table.columns().footer()).css('cursor', 'pointer');
+        }
+        // update selected2's value based on selectable2
+        var onlyKeepSelectableCols = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected2 = [];
+            return;
+          }
+          if (selectable2.length === 0) return;
+          var nonselectable = selectable2[0] <= 0;
+          if (nonselectable) {
+            // need to make selectable2 positive
+            selected2 = $(selected2).not(selectable2.map(function(i) { return -i; })).get();
+          } else {
+            selected2 = $(selected2).filter(selectable2).get();
+          }
+        }
+        // update selected2 and then
+        // refresh the col selection state according to values in selected2
+        var selectCols = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableCols();
+          // if selected2 is not a valide index (e.g., larger than the column number)
+          // table.columns(selected2) will fail and result in a blank table
+          // this is different from the table.rows(), where the out-of-range indexes
+          // doesn't affect at all
+          selected2 = $(selected2).filter(table.columns().indexes()).get();
+          table.columns().nodes().flatten().to$().removeClass(selClass);
+          if (selected2.length > 0)
+            table.columns(selected2).nodes().flatten().to$().addClass(selClass);
+        }
+        var callback = function() {
+          var colIdx = selTarget === 'column' ? table.cell(this).index().column :
+              $.inArray(this, table.columns().footer()),
+              thisCol = $(table.column(colIdx).nodes());
+          if (colIdx === -1) return;
+          if (thisCol.hasClass(selClass)) {
+            thisCol.removeClass(selClass);
+            selected2.splice($.inArray(colIdx, selected2), 1);
+          } else {
+            if (selMode === 'single') $(table.cells().nodes()).removeClass(selClass);
+            thisCol.addClass(selClass);
+            selected2 = selMode === 'single' ? [colIdx] : unique(selected2.concat([colIdx]));
+          }
+          selectCols(false); // update selected2 based on selectable
+          changeInput('columns_selected', selected2);
+        }
+        if (selTarget === 'column') {
+          $(table.table().body()).on('click.dt', 'td', callback);
+        } else {
+          $(table.table().footer()).on('click.dt', 'tr th', callback);
+        }
+        selectCols(false);  // in case users have specified pre-selected columns
+        changeInput('columns_selected', selected2);
+        if (server) table.on('draw.dt', function(e) { selectCols(false); });
+        methods.selectColumns = function(selected, ignoreSelectable) {
+          selected2 = $.makeArray(selected);
+          selectCols(ignoreSelectable);
+          changeInput('columns_selected', selected2);
+        }
+      }
+
+      if (selTarget === 'cell') {
+        var selected3 = [], selectable3 = [];
+        if (selected !== null) selected3 = selected;
+        if (selectable !== null && typeof selectable !== 'boolean') selectable3 = selectable;
+        var findIndex = function(ij, sel) {
+          for (var i = 0; i < sel.length; i++) {
+            if (ij[0] === sel[i][0] && ij[1] === sel[i][1]) return i;
+          }
+          return -1;
+        }
+         // Change selected3's value based on selectable3, then refresh the cell state
+        var onlyKeepSelectableCells = function() {
+          if (selDisable) { // users can't select; useful when only want backend select
+            selected3 = [];
+            return;
+          }
+          if (selectable3.length === 0) return;
+          var nonselectable = selectable3[0][0] <= 0;
+          var out = [];
+          if (nonselectable) {
+            selected3.map(function(ij) {
+              // should make selectable3 positive
+              if (findIndex([-ij[0], -ij[1]], selectable3) === -1) { out.push(ij); }
+            });
+          } else {
+            selected3.map(function(ij) {
+              if (findIndex(ij, selectable3) > -1) { out.push(ij); }
+            });
+          }
+          selected3 = out;
+        }
+        // Change selected3's value based on selectable3, then
+        // refresh the cell selection state according to values in selected3
+        var selectCells = function(ignoreSelectable) {
+          if (!ignoreSelectable) onlyKeepSelectableCells();
+          table.$('td.' + selClass).removeClass(selClass);
+          if (selected3.length === 0) return;
+          if (server) {
+            table.cells({page: 'current'}).every(function() {
+              var info = tweakCellIndex(this);
+              if (findIndex([info.row, info.col], selected3) > -1)
+                $(this.node()).addClass(selClass);
+            });
+          } else {
+            selected3.map(function(ij) {
+              $(table.cell(ij[0] - 1, ij[1]).node()).addClass(selClass);
+            });
+          }
+        };
+        table.on('click.dt', 'tbody td', function() {
+          var $this = $(this), info = tweakCellIndex(table.cell(this));
+          if ($this.hasClass(selClass)) {
+            $this.removeClass(selClass);
+            selected3.splice(findIndex([info.row, info.col], selected3), 1);
+          } else {
+            if (selMode === 'single') $(table.cells().nodes()).removeClass(selClass);
+            $this.addClass(selClass);
+            selected3 = selMode === 'single' ? [[info.row, info.col]] :
+              unique(selected3.concat([[info.row, info.col]]));
+          }
+          selectCells(false); // must call this to update selected3 based on selectable3
+          changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+        });
+        selectCells(false);  // in case users have specified pre-selected columns
+        changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+
+        if (server) table.on('draw.dt', function(e) { selectCells(false); });
+        methods.selectCells = function(selected, ignoreSelectable) {
+          selected3 = selected ? selected : [];
+          selectCells(ignoreSelectable);
+          changeInput('cells_selected', transposeArray2D(selected3), 'shiny.matrix');
+        }
+      }
+    }
+
+    // expose some table info to Shiny
+    var updateTableInfo = function(e, settings) {
+      // TODO: is anyone interested in the page info?
+      // changeInput('page_info', table.page.info());
+      var updateRowInfo = function(id, modifier) {
+        var idx;
+        if (server) {
+          idx = modifier.page === 'current' ? DT_rows_current : DT_rows_all;
+        } else {
+          var rows = table.rows($.extend({
+            search: 'applied',
+            page: 'all'
+          }, modifier));
+          idx = addOne(rows.indexes().toArray());
+        }
+        changeInput('rows' + '_' + id, idx);
+      };
+      updateRowInfo('current', {page: 'current'});
+      updateRowInfo('all', {});
+    }
+    table.on('draw.dt', updateTableInfo);
+    updateTableInfo();
+
+    // state info
+    table.on('draw.dt column-visibility.dt', function() {
+      changeInput('state', table.state());
+    });
+    changeInput('state', table.state());
+
+    // search info
+    var updateSearchInfo = function() {
+      changeInput('search', table.search());
+      if (filterRow) changeInput('search_columns', filterRow.toArray().map(function(td) {
+        return $(td).find('input').first().val();
+      }));
+    }
+    table.on('draw.dt', updateSearchInfo);
+    updateSearchInfo();
+
+    var cellInfo = function(thiz) {
+      var info = tweakCellIndex(table.cell(thiz));
+      info.value = table.cell(thiz).data();
+      return info;
+    }
+    // the current cell clicked on
+    table.on('click.dt', 'tbody td', function() {
+      changeInput('cell_clicked', cellInfo(this), null, null, {priority: 'event'});
+    })
+    changeInput('cell_clicked', {});
+
+    // do not trigger table selection when clicking on links unless they have classes
+    table.on('click.dt', 'tbody td a', function(e) {
+      if (this.className === '') e.stopPropagation();
+    });
+
+    methods.addRow = function(data, rowname, resetPaging) {
+      var n = table.columns().indexes().length, d = n - data.length;
+      if (d === 1) {
+        data = rowname.concat(data)
+      } else if (d !== 0) {
+        console.log(data);
+        console.log(table.columns().indexes());
+        throw 'New data must be of the same length as current data (' + n + ')';
+      };
+      table.row.add(data).draw(resetPaging);
+    }
+
+    methods.updateSearch = function(keywords) {
+      if (keywords.global !== null)
+        $(table.table().container()).find('input[type=search]').first()
+             .val(keywords.global).trigger('input');
+      var columns = keywords.columns;
+      if (!filterRow || columns === null) return;
+      filterRow.toArray().map(function(td, i) {
+        var v = typeof columns === 'string' ? columns : columns[i];
+        if (typeof v === 'undefined') {
+          console.log('The search keyword for column ' + i + ' is undefined')
+          return;
+        }
+        $(td).find('input').first().val(v).trigger('input');
+        searchColumn(i, v);
+      });
+      table.draw();
+    }
+
+    methods.hideCols = function(hide, reset) {
+      if (reset) table.columns().visible(true, false);
+      table.columns(hide).visible(false);
+    }
+
+    methods.showCols = function(show, reset) {
+      if (reset) table.columns().visible(false, false);
+      table.columns(show).visible(true);
+    }
+
+    methods.colReorder = function(order, origOrder) {
+      table.colReorder.order(order, origOrder);
+    }
+
+    methods.selectPage = function(page) {
+      if (table.page.info().pages < page || page < 1) {
+        throw 'Selected page is out of range';
+      };
+      table.page(page - 1).draw(false);
+    }
+
+    methods.reloadData = function(resetPaging, clearSelection) {
+      // empty selections first if necessary
+      if (methods.selectRows && inArray('row', clearSelection)) methods.selectRows([]);
+      if (methods.selectColumns && inArray('column', clearSelection)) methods.selectColumns([]);
+      if (methods.selectCells && inArray('cell', clearSelection)) methods.selectCells([]);
+      table.ajax.reload(null, resetPaging);
+    }
+
+    // update table filters (set new limits of sliders)
+    methods.updateFilters = function(newProps) {
+      // loop through each filter in the filter row
+      filterRow.each(function(i, td) {
+        var k = i;
+        if (filterRow.length > newProps.length) {
+          if (i === 0) return;  // first column is row names
+          k = i - 1;
+        }
+        // Update the filters to reflect the updated data.
+        // Allow "falsy" (e.g. NULL) to signify a no-op.
+        if (newProps[k]) {
+          setFilterProps(td, newProps[k]);
+        }
+      });
+    };
+
+    table.shinyMethods = methods;
+  },
+  resize: function(el, width, height, instance) {
+    if (instance.data) this.renderValue(el, instance.data, instance);
+
+    // dynamically adjust height if fillContainer = TRUE
+    if (instance.fillContainer)
+      this.fillAvailableHeight(el, height);
+
+    this.adjustWidth(el);
+  },
+
+  // dynamically set the scroll body to fill available height
+  // (used with fillContainer = TRUE)
+  fillAvailableHeight: function(el, availableHeight) {
+
+    // see how much of the table is occupied by header/footer elements
+    // and use that to compute a target scroll body height
+    var dtWrapper = $(el).find('div.dataTables_wrapper');
+    var dtScrollBody = $(el).find($('div.dataTables_scrollBody'));
+    var framingHeight = dtWrapper.innerHeight() - dtScrollBody.innerHeight();
+    var scrollBodyHeight = availableHeight - framingHeight;
+
+    // we need to set `max-height` to none as datatables library now sets this
+    // to a fixed height, disabling the ability to resize to fill the window,
+    // as it will be set to a fixed 100px under such circumstances, e.g., RStudio IDE,
+    // or FlexDashboard
+    // see https://github.com/rstudio/DT/issues/951#issuecomment-1026464509
+    dtScrollBody.css('max-height', 'none');
+    // set the height
+    dtScrollBody.height(scrollBodyHeight + 'px');
+  },
+
+  // adjust the width of columns; remove the hard-coded widths on table and the
+  // scroll header when scrollX/Y are enabled
+  adjustWidth: function(el) {
+    var $el = $(el), table = $el.data('datatable');
+    if (table) table.columns.adjust();
+    $el.find('.dataTables_scrollHeadInner').css('width', '')
+        .children('table').css('margin-left', '');
+  }
+});
+
+  if (!HTMLWidgets.shinyMode) return;
+
+  Shiny.addCustomMessageHandler('datatable-calls', function(data) {
+    var id = data.id;
+    var el = document.getElementById(id);
+    var table = el ? $(el).data('datatable') : null;
+    if (!table) {
+      console.log("Couldn't find table with id " + id);
+      return;
+    }
+
+    var methods = table.shinyMethods, call = data.call;
+    if (methods[call.method]) {
+      methods[call.method].apply(table, call.args);
+    } else {
+      console.log("Unknown method " + call.method);
+    }
+  });
+
+})();
diff --git a/docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.extra.css b/docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.extra.css
new file mode 100644
index 00000000..b2dd141f
--- /dev/null
+++ b/docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.extra.css
@@ -0,0 +1,28 @@
+/* Selected rows/cells */
+table.dataTable tr.selected td, table.dataTable td.selected {
+  background-color: #b0bed9 !important;
+}
+/* In case of scrollX/Y or FixedHeader */
+.dataTables_scrollBody .dataTables_sizing {
+  visibility: hidden;
+}
+
+/* The datatables' theme CSS file doesn't define
+the color but with white background. It leads to an issue that
+when the HTML's body color is set to 'white', the user can't
+see the text since the background is white. One case happens in the
+RStudio's IDE when inline viewing the DT table inside an Rmd file,
+if the IDE theme is set to "Cobalt".
+
+See https://github.com/rstudio/DT/issues/447 for more info
+
+This fixes should have little side-effects because all the other elements
+of the default theme use the #333 font color.
+
+TODO: The upstream may use relative colors for both the table background
+and the color. It means the table can display well without this patch
+then. At that time, we need to remove the below CSS attributes.
+*/
+div.datatables {
+  color: #333;
+}
diff --git a/docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.min.css b/docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.min.css
new file mode 100644
index 00000000..aff1ca67
--- /dev/null
+++ b/docs/site_libs/dt-core-1.13.4/css/jquery.dataTables.min.css
@@ -0,0 +1 @@
+:root{--dt-row-selected: 13, 110, 253;--dt-row-selected-text: 255, 255, 255;--dt-row-selected-link: 9, 10, 11}table.dataTable td.dt-control{text-align:center;cursor:pointer}table.dataTable td.dt-control:before{height:1em;width:1em;margin-top:-9px;display:inline-block;color:white;border:.15em solid white;border-radius:1em;box-shadow:0 0 .2em #444;box-sizing:content-box;text-align:center;text-indent:0 !important;font-family:"Courier New",Courier,monospace;line-height:1em;content:"+";background-color:#31b131}table.dataTable tr.dt-hasChild td.dt-control:before{content:"-";background-color:#d33333}table.dataTable thead>tr>th.sorting,table.dataTable thead>tr>th.sorting_asc,table.dataTable thead>tr>th.sorting_desc,table.dataTable thead>tr>th.sorting_asc_disabled,table.dataTable thead>tr>th.sorting_desc_disabled,table.dataTable thead>tr>td.sorting,table.dataTable thead>tr>td.sorting_asc,table.dataTable thead>tr>td.sorting_desc,table.dataTable thead>tr>td.sorting_asc_disabled,table.dataTable thead>tr>td.sorting_desc_disabled{cursor:pointer;position:relative;padding-right:26px}table.dataTable thead>tr>th.sorting:before,table.dataTable thead>tr>th.sorting:after,table.dataTable thead>tr>th.sorting_asc:before,table.dataTable thead>tr>th.sorting_asc:after,table.dataTable thead>tr>th.sorting_desc:before,table.dataTable thead>tr>th.sorting_desc:after,table.dataTable thead>tr>th.sorting_asc_disabled:before,table.dataTable thead>tr>th.sorting_asc_disabled:after,table.dataTable thead>tr>th.sorting_desc_disabled:before,table.dataTable thead>tr>th.sorting_desc_disabled:after,table.dataTable thead>tr>td.sorting:before,table.dataTable thead>tr>td.sorting:after,table.dataTable thead>tr>td.sorting_asc:before,table.dataTable thead>tr>td.sorting_asc:after,table.dataTable thead>tr>td.sorting_desc:before,table.dataTable thead>tr>td.sorting_desc:after,table.dataTable thead>tr>td.sorting_asc_disabled:before,table.dataTable thead>tr>td.sorting_asc_disabled:after,table.dataTable thead>tr>td.sorting_desc_disabled:before,table.dataTable thead>tr>td.sorting_desc_disabled:after{position:absolute;display:block;opacity:.125;right:10px;line-height:9px;font-size:.8em}table.dataTable thead>tr>th.sorting:before,table.dataTable thead>tr>th.sorting_asc:before,table.dataTable thead>tr>th.sorting_desc:before,table.dataTable thead>tr>th.sorting_asc_disabled:before,table.dataTable thead>tr>th.sorting_desc_disabled:before,table.dataTable thead>tr>td.sorting:before,table.dataTable thead>tr>td.sorting_asc:before,table.dataTable thead>tr>td.sorting_desc:before,table.dataTable thead>tr>td.sorting_asc_disabled:before,table.dataTable thead>tr>td.sorting_desc_disabled:before{bottom:50%;content:"▲";content:"▲"/""}table.dataTable thead>tr>th.sorting:after,table.dataTable thead>tr>th.sorting_asc:after,table.dataTable thead>tr>th.sorting_desc:after,table.dataTable thead>tr>th.sorting_asc_disabled:after,table.dataTable thead>tr>th.sorting_desc_disabled:after,table.dataTable thead>tr>td.sorting:after,table.dataTable thead>tr>td.sorting_asc:after,table.dataTable thead>tr>td.sorting_desc:after,table.dataTable thead>tr>td.sorting_asc_disabled:after,table.dataTable thead>tr>td.sorting_desc_disabled:after{top:50%;content:"▼";content:"▼"/""}table.dataTable thead>tr>th.sorting_asc:before,table.dataTable thead>tr>th.sorting_desc:after,table.dataTable thead>tr>td.sorting_asc:before,table.dataTable thead>tr>td.sorting_desc:after{opacity:.6}table.dataTable thead>tr>th.sorting_desc_disabled:after,table.dataTable thead>tr>th.sorting_asc_disabled:before,table.dataTable thead>tr>td.sorting_desc_disabled:after,table.dataTable thead>tr>td.sorting_asc_disabled:before{display:none}table.dataTable thead>tr>th:active,table.dataTable thead>tr>td:active{outline:none}div.dataTables_scrollBody>table.dataTable>thead>tr>th:before,div.dataTables_scrollBody>table.dataTable>thead>tr>th:after,div.dataTables_scrollBody>table.dataTable>thead>tr>td:before,div.dataTables_scrollBody>table.dataTable>thead>tr>td:after{display:none}div.dataTables_processing{position:absolute;top:50%;left:50%;width:200px;margin-left:-100px;margin-top:-26px;text-align:center;padding:2px}div.dataTables_processing>div:last-child{position:relative;width:80px;height:15px;margin:1em auto}div.dataTables_processing>div:last-child>div{position:absolute;top:0;width:13px;height:13px;border-radius:50%;background:rgb(13, 110, 253);background:rgb(var(--dt-row-selected));animation-timing-function:cubic-bezier(0, 1, 1, 0)}div.dataTables_processing>div:last-child>div:nth-child(1){left:8px;animation:datatables-loader-1 .6s infinite}div.dataTables_processing>div:last-child>div:nth-child(2){left:8px;animation:datatables-loader-2 .6s 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ke(t,n,V,q)}},function(t,e){p.type.order[t+n+"-pre"]=e,t.match(/^html\-/)&&(p.type.search[t+n]=p.type.search.html)})}P.extend(p.type.order,{"date-pre":function(t){t=Date.parse(t);return isNaN(t)?-1/0:t},"html-pre":function(t){return h(t)?"":t.replace?t.replace(/<.*?>/g,"").toLowerCase():t+""},"string-pre":function(t){return h(t)?"":"string"==typeof t?t.toLowerCase():t.toString?t.toString():""},"string-asc":function(t,e){return t<e?-1:e<t?1:0},"string-desc":function(t,e){return t<e?1:e<t?-1:0}}),Me(""),P.extend(!0,w.ext.renderer,{header:{_:function(r,o,i,l){P(r.nTable).on("order.dt.DT",function(t,e,n,a){r===e&&(e=i.idx,o.removeClass(l.sSortAsc+" "+l.sSortDesc).addClass("asc"==a[e]?l.sSortAsc:"desc"==a[e]?l.sSortDesc:i.sSortingClass))})},jqueryui:function(r,o,i,l){P("<div/>").addClass(l.sSortJUIWrapper).append(o.contents()).append(P("<span/>").addClass(l.sSortIcon+" 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P(this).dataTable(t).api()},P.each(w,function(t,e){P.fn.DataTable[t]=e}),w});
\ No newline at end of file
diff --git a/docs/site_libs/htmlwidgets-1.6.2/htmlwidgets.js b/docs/site_libs/htmlwidgets-1.6.2/htmlwidgets.js
new file mode 100644
index 00000000..1067d029
--- /dev/null
+++ b/docs/site_libs/htmlwidgets-1.6.2/htmlwidgets.js
@@ -0,0 +1,901 @@
+(function() {
+  // If window.HTMLWidgets is already defined, then use it; otherwise create a
+  // new object. This allows preceding code to set options that affect the
+  // initialization process (though none currently exist).
+  window.HTMLWidgets = window.HTMLWidgets || {};
+
+  // See if we're running in a viewer pane. If not, we're in a web browser.
+  var viewerMode = window.HTMLWidgets.viewerMode =
+      /\bviewer_pane=1\b/.test(window.location);
+
+  // See if we're running in Shiny mode. If not, it's a static document.
+  // Note that static widgets can appear in both Shiny and static modes, but
+  // obviously, Shiny widgets can only appear in Shiny apps/documents.
+  var shinyMode = window.HTMLWidgets.shinyMode =
+      typeof(window.Shiny) !== "undefined" && !!window.Shiny.outputBindings;
+
+  // We can't count on jQuery being available, so we implement our own
+  // version if necessary.
+  function querySelectorAll(scope, selector) {
+    if (typeof(jQuery) !== "undefined" && scope instanceof jQuery) {
+      return scope.find(selector);
+    }
+    if (scope.querySelectorAll) {
+      return scope.querySelectorAll(selector);
+    }
+  }
+
+  function asArray(value) {
+    if (value === null)
+      return [];
+    if ($.isArray(value))
+      return value;
+    return [value];
+  }
+
+  // Implement jQuery's extend
+  function extend(target /*, ... */) {
+    if (arguments.length == 1) {
+      return target;
+    }
+    for (var i = 1; i < arguments.length; i++) {
+      var source = arguments[i];
+      for (var prop in source) {
+        if (source.hasOwnProperty(prop)) {
+          target[prop] = source[prop];
+        }
+      }
+    }
+    return target;
+  }
+
+  // IE8 doesn't support Array.forEach.
+  function forEach(values, callback, thisArg) {
+    if (values.forEach) {
+      values.forEach(callback, thisArg);
+    } else {
+      for (var i = 0; i < values.length; i++) {
+        callback.call(thisArg, values[i], i, values);
+      }
+    }
+  }
+
+  // Replaces the specified method with the return value of funcSource.
+  //
+  // Note that funcSource should not BE the new method, it should be a function
+  // that RETURNS the new method. funcSource receives a single argument that is
+  // the overridden method, it can be called from the new method. The overridden
+  // method can be called like a regular function, it has the target permanently
+  // bound to it so "this" will work correctly.
+  function overrideMethod(target, methodName, funcSource) {
+    var superFunc = target[methodName] || function() {};
+    var superFuncBound = function() {
+      return superFunc.apply(target, arguments);
+    };
+    target[methodName] = funcSource(superFuncBound);
+  }
+
+  // Add a method to delegator that, when invoked, calls
+  // delegatee.methodName. If there is no such method on
+  // the delegatee, but there was one on delegator before
+  // delegateMethod was called, then the original version
+  // is invoked instead.
+  // For example:
+  //
+  // var a = {
+  //   method1: function() { console.log('a1'); }
+  //   method2: function() { console.log('a2'); }
+  // };
+  // var b = {
+  //   method1: function() { console.log('b1'); }
+  // };
+  // delegateMethod(a, b, "method1");
+  // delegateMethod(a, b, "method2");
+  // a.method1();
+  // a.method2();
+  //
+  // The output would be "b1", "a2".
+  function delegateMethod(delegator, delegatee, methodName) {
+    var inherited = delegator[methodName];
+    delegator[methodName] = function() {
+      var target = delegatee;
+      var method = delegatee[methodName];
+
+      // The method doesn't exist on the delegatee. Instead,
+      // call the method on the delegator, if it exists.
+      if (!method) {
+        target = delegator;
+        method = inherited;
+      }
+
+      if (method) {
+        return method.apply(target, arguments);
+      }
+    };
+  }
+
+  // Implement a vague facsimilie of jQuery's data method
+  function elementData(el, name, value) {
+    if (arguments.length == 2) {
+      return el["htmlwidget_data_" + name];
+    } else if (arguments.length == 3) {
+      el["htmlwidget_data_" + name] = value;
+      return el;
+    } else {
+      throw new Error("Wrong number of arguments for elementData: " +
+        arguments.length);
+    }
+  }
+
+  // http://stackoverflow.com/questions/3446170/escape-string-for-use-in-javascript-regex
+  function escapeRegExp(str) {
+    return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
+  }
+
+  function hasClass(el, className) {
+    var re = new RegExp("\\b" + escapeRegExp(className) + "\\b");
+    return re.test(el.className);
+  }
+
+  // elements - array (or array-like object) of HTML elements
+  // className - class name to test for
+  // include - if true, only return elements with given className;
+  //   if false, only return elements *without* given className
+  function filterByClass(elements, className, include) {
+    var results = [];
+    for (var i = 0; i < elements.length; i++) {
+      if (hasClass(elements[i], className) == include)
+        results.push(elements[i]);
+    }
+    return results;
+  }
+
+  function on(obj, eventName, func) {
+    if (obj.addEventListener) {
+      obj.addEventListener(eventName, func, false);
+    } else if (obj.attachEvent) {
+      obj.attachEvent(eventName, func);
+    }
+  }
+
+  function off(obj, eventName, func) {
+    if (obj.removeEventListener)
+      obj.removeEventListener(eventName, func, false);
+    else if (obj.detachEvent) {
+      obj.detachEvent(eventName, func);
+    }
+  }
+
+  // Translate array of values to top/right/bottom/left, as usual with
+  // the "padding" CSS property
+  // https://developer.mozilla.org/en-US/docs/Web/CSS/padding
+  function unpackPadding(value) {
+    if (typeof(value) === "number")
+      value = [value];
+    if (value.length === 1) {
+      return {top: value[0], right: value[0], bottom: value[0], left: value[0]};
+    }
+    if (value.length === 2) {
+      return {top: value[0], right: value[1], bottom: value[0], left: value[1]};
+    }
+    if (value.length === 3) {
+      return {top: value[0], right: value[1], bottom: value[2], left: value[1]};
+    }
+    if (value.length === 4) {
+      return {top: value[0], right: value[1], bottom: value[2], left: value[3]};
+    }
+  }
+
+  // Convert an unpacked padding object to a CSS value
+  function paddingToCss(paddingObj) {
+    return paddingObj.top + "px " + paddingObj.right + "px " + paddingObj.bottom + "px " + paddingObj.left + "px";
+  }
+
+  // Makes a number suitable for CSS
+  function px(x) {
+    if (typeof(x) === "number")
+      return x + "px";
+    else
+      return x;
+  }
+
+  // Retrieves runtime widget sizing information for an element.
+  // The return value is either null, or an object with fill, padding,
+  // defaultWidth, defaultHeight fields.
+  function sizingPolicy(el) {
+    var sizingEl = document.querySelector("script[data-for='" + el.id + "'][type='application/htmlwidget-sizing']");
+    if (!sizingEl)
+      return null;
+    var sp = JSON.parse(sizingEl.textContent || sizingEl.text || "{}");
+    if (viewerMode) {
+      return sp.viewer;
+    } else {
+      return sp.browser;
+    }
+  }
+
+  // @param tasks Array of strings (or falsy value, in which case no-op).
+  //   Each element must be a valid JavaScript expression that yields a
+  //   function. Or, can be an array of objects with "code" and "data"
+  //   properties; in this case, the "code" property should be a string
+  //   of JS that's an expr that yields a function, and "data" should be
+  //   an object that will be added as an additional argument when that
+  //   function is called.
+  // @param target The object that will be "this" for each function
+  //   execution.
+  // @param args Array of arguments to be passed to the functions. (The
+  //   same arguments will be passed to all functions.)
+  function evalAndRun(tasks, target, args) {
+    if (tasks) {
+      forEach(tasks, function(task) {
+        var theseArgs = args;
+        if (typeof(task) === "object") {
+          theseArgs = theseArgs.concat([task.data]);
+          task = task.code;
+        }
+        var taskFunc = tryEval(task);
+        if (typeof(taskFunc) !== "function") {
+          throw new Error("Task must be a function! Source:\n" + task);
+        }
+        taskFunc.apply(target, theseArgs);
+      });
+    }
+  }
+
+  // Attempt eval() both with and without enclosing in parentheses.
+  // Note that enclosing coerces a function declaration into
+  // an expression that eval() can parse
+  // (otherwise, a SyntaxError is thrown)
+  function tryEval(code) {
+    var result = null;
+    try {
+      result = eval("(" + code + ")");
+    } catch(error) {
+      if (!(error instanceof SyntaxError)) {
+        throw error;
+      }
+      try {
+        result = eval(code);
+      } catch(e) {
+        if (e instanceof SyntaxError) {
+          throw error;
+        } else {
+          throw e;
+        }
+      }
+    }
+    return result;
+  }
+
+  function initSizing(el) {
+    var sizing = sizingPolicy(el);
+    if (!sizing)
+      return;
+
+    var cel = document.getElementById("htmlwidget_container");
+    if (!cel)
+      return;
+
+    if (typeof(sizing.padding) !== "undefined") {
+      document.body.style.margin = "0";
+      document.body.style.padding = paddingToCss(unpackPadding(sizing.padding));
+    }
+
+    if (sizing.fill) {
+      document.body.style.overflow = "hidden";
+      document.body.style.width = "100%";
+      document.body.style.height = "100%";
+      document.documentElement.style.width = "100%";
+      document.documentElement.style.height = "100%";
+      cel.style.position = "absolute";
+      var pad = unpackPadding(sizing.padding);
+      cel.style.top = pad.top + "px";
+      cel.style.right = pad.right + "px";
+      cel.style.bottom = pad.bottom + "px";
+      cel.style.left = pad.left + "px";
+      el.style.width = "100%";
+      el.style.height = "100%";
+
+      return {
+        getWidth: function() { return cel.getBoundingClientRect().width; },
+        getHeight: function() { return cel.getBoundingClientRect().height; }
+      };
+
+    } else {
+      el.style.width = px(sizing.width);
+      el.style.height = px(sizing.height);
+
+      return {
+        getWidth: function() { return cel.getBoundingClientRect().width; },
+        getHeight: function() { return cel.getBoundingClientRect().height; }
+      };
+    }
+  }
+
+  // Default implementations for methods
+  var defaults = {
+    find: function(scope) {
+      return querySelectorAll(scope, "." + this.name);
+    },
+    renderError: function(el, err) {
+      var $el = $(el);
+
+      this.clearError(el);
+
+      // Add all these error classes, as Shiny does
+      var errClass = "shiny-output-error";
+      if (err.type !== null) {
+        // use the classes of the error condition as CSS class names
+        errClass = errClass + " " + $.map(asArray(err.type), function(type) {
+          return errClass + "-" + type;
+        }).join(" ");
+      }
+      errClass = errClass + " htmlwidgets-error";
+
+      // Is el inline or block? If inline or inline-block, just display:none it
+      // and add an inline error.
+      var display = $el.css("display");
+      $el.data("restore-display-mode", display);
+
+      if (display === "inline" || display === "inline-block") {
+        $el.hide();
+        if (err.message !== "") {
+          var errorSpan = $("<span>").addClass(errClass);
+          errorSpan.text(err.message);
+          $el.after(errorSpan);
+        }
+      } else if (display === "block") {
+        // If block, add an error just after the el, set visibility:none on the
+        // el, and position the error to be on top of the el.
+        // Mark it with a unique ID and CSS class so we can remove it later.
+        $el.css("visibility", "hidden");
+        if (err.message !== "") {
+          var errorDiv = $("<div>").addClass(errClass).css("position", "absolute")
+            .css("top", el.offsetTop)
+            .css("left", el.offsetLeft)
+            // setting width can push out the page size, forcing otherwise
+            // unnecessary scrollbars to appear and making it impossible for
+            // the element to shrink; so use max-width instead
+            .css("maxWidth", el.offsetWidth)
+            .css("height", el.offsetHeight);
+          errorDiv.text(err.message);
+          $el.after(errorDiv);
+
+          // Really dumb way to keep the size/position of the error in sync with
+          // the parent element as the window is resized or whatever.
+          var intId = setInterval(function() {
+            if (!errorDiv[0].parentElement) {
+              clearInterval(intId);
+              return;
+            }
+            errorDiv
+              .css("top", el.offsetTop)
+              .css("left", el.offsetLeft)
+              .css("maxWidth", el.offsetWidth)
+              .css("height", el.offsetHeight);
+          }, 500);
+        }
+      }
+    },
+    clearError: function(el) {
+      var $el = $(el);
+      var display = $el.data("restore-display-mode");
+      $el.data("restore-display-mode", null);
+
+      if (display === "inline" || display === "inline-block") {
+        if (display)
+          $el.css("display", display);
+        $(el.nextSibling).filter(".htmlwidgets-error").remove();
+      } else if (display === "block"){
+        $el.css("visibility", "inherit");
+        $(el.nextSibling).filter(".htmlwidgets-error").remove();
+      }
+    },
+    sizing: {}
+  };
+
+  // Called by widget bindings to register a new type of widget. The definition
+  // object can contain the following properties:
+  // - name (required) - A string indicating the binding name, which will be
+  //   used by default as the CSS classname to look for.
+  // - initialize (optional) - A function(el) that will be called once per
+  //   widget element; if a value is returned, it will be passed as the third
+  //   value to renderValue.
+  // - renderValue (required) - A function(el, data, initValue) that will be
+  //   called with data. Static contexts will cause this to be called once per
+  //   element; Shiny apps will cause this to be called multiple times per
+  //   element, as the data changes.
+  window.HTMLWidgets.widget = function(definition) {
+    if (!definition.name) {
+      throw new Error("Widget must have a name");
+    }
+    if (!definition.type) {
+      throw new Error("Widget must have a type");
+    }
+    // Currently we only support output widgets
+    if (definition.type !== "output") {
+      throw new Error("Unrecognized widget type '" + definition.type + "'");
+    }
+    // TODO: Verify that .name is a valid CSS classname
+
+    // Support new-style instance-bound definitions. Old-style class-bound
+    // definitions have one widget "object" per widget per type/class of
+    // widget; the renderValue and resize methods on such widget objects
+    // take el and instance arguments, because the widget object can't
+    // store them. New-style instance-bound definitions have one widget
+    // object per widget instance; the definition that's passed in doesn't
+    // provide renderValue or resize methods at all, just the single method
+    //   factory(el, width, height)
+    // which returns an object that has renderValue(x) and resize(w, h).
+    // This enables a far more natural programming style for the widget
+    // author, who can store per-instance state using either OO-style
+    // instance fields or functional-style closure variables (I guess this
+    // is in contrast to what can only be called C-style pseudo-OO which is
+    // what we required before).
+    if (definition.factory) {
+      definition = createLegacyDefinitionAdapter(definition);
+    }
+
+    if (!definition.renderValue) {
+      throw new Error("Widget must have a renderValue function");
+    }
+
+    // For static rendering (non-Shiny), use a simple widget registration
+    // scheme. We also use this scheme for Shiny apps/documents that also
+    // contain static widgets.
+    window.HTMLWidgets.widgets = window.HTMLWidgets.widgets || [];
+    // Merge defaults into the definition; don't mutate the original definition.
+    var staticBinding = extend({}, defaults, definition);
+    overrideMethod(staticBinding, "find", function(superfunc) {
+      return function(scope) {
+        var results = superfunc(scope);
+        // Filter out Shiny outputs, we only want the static kind
+        return filterByClass(results, "html-widget-output", false);
+      };
+    });
+    window.HTMLWidgets.widgets.push(staticBinding);
+
+    if (shinyMode) {
+      // Shiny is running. Register the definition with an output binding.
+      // The definition itself will not be the output binding, instead
+      // we will make an output binding object that delegates to the
+      // definition. This is because we foolishly used the same method
+      // name (renderValue) for htmlwidgets definition and Shiny bindings
+      // but they actually have quite different semantics (the Shiny
+      // bindings receive data that includes lots of metadata that it
+      // strips off before calling htmlwidgets renderValue). We can't
+      // just ignore the difference because in some widgets it's helpful
+      // to call this.renderValue() from inside of resize(), and if
+      // we're not delegating, then that call will go to the Shiny
+      // version instead of the htmlwidgets version.
+
+      // Merge defaults with definition, without mutating either.
+      var bindingDef = extend({}, defaults, definition);
+
+      // This object will be our actual Shiny binding.
+      var shinyBinding = new Shiny.OutputBinding();
+
+      // With a few exceptions, we'll want to simply use the bindingDef's
+      // version of methods if they are available, otherwise fall back to
+      // Shiny's defaults. NOTE: If Shiny's output bindings gain additional
+      // methods in the future, and we want them to be overrideable by
+      // HTMLWidget binding definitions, then we'll need to add them to this
+      // list.
+      delegateMethod(shinyBinding, bindingDef, "getId");
+      delegateMethod(shinyBinding, bindingDef, "onValueChange");
+      delegateMethod(shinyBinding, bindingDef, "onValueError");
+      delegateMethod(shinyBinding, bindingDef, "renderError");
+      delegateMethod(shinyBinding, bindingDef, "clearError");
+      delegateMethod(shinyBinding, bindingDef, "showProgress");
+
+      // The find, renderValue, and resize are handled differently, because we
+      // want to actually decorate the behavior of the bindingDef methods.
+
+      shinyBinding.find = function(scope) {
+        var results = bindingDef.find(scope);
+
+        // Only return elements that are Shiny outputs, not static ones
+        var dynamicResults = results.filter(".html-widget-output");
+
+        // It's possible that whatever caused Shiny to think there might be
+        // new dynamic outputs, also caused there to be new static outputs.
+        // Since there might be lots of different htmlwidgets bindings, we
+        // schedule execution for later--no need to staticRender multiple
+        // times.
+        if (results.length !== dynamicResults.length)
+          scheduleStaticRender();
+
+        return dynamicResults;
+      };
+
+      // Wrap renderValue to handle initialization, which unfortunately isn't
+      // supported natively by Shiny at the time of this writing.
+
+      shinyBinding.renderValue = function(el, data) {
+        Shiny.renderDependencies(data.deps);
+        // Resolve strings marked as javascript literals to objects
+        if (!(data.evals instanceof Array)) data.evals = [data.evals];
+        for (var i = 0; data.evals && i < data.evals.length; i++) {
+          window.HTMLWidgets.evaluateStringMember(data.x, data.evals[i]);
+        }
+        if (!bindingDef.renderOnNullValue) {
+          if (data.x === null) {
+            el.style.visibility = "hidden";
+            return;
+          } else {
+            el.style.visibility = "inherit";
+          }
+        }
+        if (!elementData(el, "initialized")) {
+          initSizing(el);
+
+          elementData(el, "initialized", true);
+          if (bindingDef.initialize) {
+            var rect = el.getBoundingClientRect();
+            var result = bindingDef.initialize(el, rect.width, rect.height);
+            elementData(el, "init_result", result);
+          }
+        }
+        bindingDef.renderValue(el, data.x, elementData(el, "init_result"));
+        evalAndRun(data.jsHooks.render, elementData(el, "init_result"), [el, data.x]);
+      };
+
+      // Only override resize if bindingDef implements it
+      if (bindingDef.resize) {
+        shinyBinding.resize = function(el, width, height) {
+          // Shiny can call resize before initialize/renderValue have been
+          // called, which doesn't make sense for widgets.
+          if (elementData(el, "initialized")) {
+            bindingDef.resize(el, width, height, elementData(el, "init_result"));
+          }
+        };
+      }
+
+      Shiny.outputBindings.register(shinyBinding, bindingDef.name);
+    }
+  };
+
+  var scheduleStaticRenderTimerId = null;
+  function scheduleStaticRender() {
+    if (!scheduleStaticRenderTimerId) {
+      scheduleStaticRenderTimerId = setTimeout(function() {
+        scheduleStaticRenderTimerId = null;
+        window.HTMLWidgets.staticRender();
+      }, 1);
+    }
+  }
+
+  // Render static widgets after the document finishes loading
+  // Statically render all elements that are of this widget's class
+  window.HTMLWidgets.staticRender = function() {
+    var bindings = window.HTMLWidgets.widgets || [];
+    forEach(bindings, function(binding) {
+      var matches = binding.find(document.documentElement);
+      forEach(matches, function(el) {
+        var sizeObj = initSizing(el, binding);
+
+        var getSize = function(el) {
+          if (sizeObj) {
+            return {w: sizeObj.getWidth(), h: sizeObj.getHeight()}
+          } else {
+            var rect = el.getBoundingClientRect();
+            return {w: rect.width, h: rect.height}
+          }
+        };
+
+        if (hasClass(el, "html-widget-static-bound"))
+          return;
+        el.className = el.className + " html-widget-static-bound";
+
+        var initResult;
+        if (binding.initialize) {
+          var size = getSize(el);
+          initResult = binding.initialize(el, size.w, size.h);
+          elementData(el, "init_result", initResult);
+        }
+
+        if (binding.resize) {
+          var lastSize = getSize(el);
+          var resizeHandler = function(e) {
+            var size = getSize(el);
+            if (size.w === 0 && size.h === 0)
+              return;
+            if (size.w === lastSize.w && size.h === lastSize.h)
+              return;
+            lastSize = size;
+            binding.resize(el, size.w, size.h, initResult);
+          };
+
+          on(window, "resize", resizeHandler);
+
+          // This is needed for cases where we're running in a Shiny
+          // app, but the widget itself is not a Shiny output, but
+          // rather a simple static widget. One example of this is
+          // an rmarkdown document that has runtime:shiny and widget
+          // that isn't in a render function. Shiny only knows to
+          // call resize handlers for Shiny outputs, not for static
+          // widgets, so we do it ourselves.
+          if (window.jQuery) {
+            window.jQuery(document).on(
+              "shown.htmlwidgets shown.bs.tab.htmlwidgets shown.bs.collapse.htmlwidgets",
+              resizeHandler
+            );
+            window.jQuery(document).on(
+              "hidden.htmlwidgets hidden.bs.tab.htmlwidgets hidden.bs.collapse.htmlwidgets",
+              resizeHandler
+            );
+          }
+
+          // This is needed for the specific case of ioslides, which
+          // flips slides between display:none and display:block.
+          // Ideally we would not have to have ioslide-specific code
+          // here, but rather have ioslides raise a generic event,
+          // but the rmarkdown package just went to CRAN so the
+          // window to getting that fixed may be long.
+          if (window.addEventListener) {
+            // It's OK to limit this to window.addEventListener
+            // browsers because ioslides itself only supports
+            // such browsers.
+            on(document, "slideenter", resizeHandler);
+            on(document, "slideleave", resizeHandler);
+          }
+        }
+
+        var scriptData = document.querySelector("script[data-for='" + el.id + "'][type='application/json']");
+        if (scriptData) {
+          var data = JSON.parse(scriptData.textContent || scriptData.text);
+          // Resolve strings marked as javascript literals to objects
+          if (!(data.evals instanceof Array)) data.evals = [data.evals];
+          for (var k = 0; data.evals && k < data.evals.length; k++) {
+            window.HTMLWidgets.evaluateStringMember(data.x, data.evals[k]);
+          }
+          binding.renderValue(el, data.x, initResult);
+          evalAndRun(data.jsHooks.render, initResult, [el, data.x]);
+        }
+      });
+    });
+
+    invokePostRenderHandlers();
+  }
+
+
+  function has_jQuery3() {
+    if (!window.jQuery) {
+      return false;
+    }
+    var $version = window.jQuery.fn.jquery;
+    var $major_version = parseInt($version.split(".")[0]);
+    return $major_version >= 3;
+  }
+
+  /*
+  / Shiny 1.4 bumped jQuery from 1.x to 3.x which means jQuery's
+  / on-ready handler (i.e., $(fn)) is now asyncronous (i.e., it now
+  / really means $(setTimeout(fn)).
+  / https://jquery.com/upgrade-guide/3.0/#breaking-change-document-ready-handlers-are-now-asynchronous
+  /
+  / Since Shiny uses $() to schedule initShiny, shiny>=1.4 calls initShiny
+  / one tick later than it did before, which means staticRender() is
+  / called renderValue() earlier than (advanced) widget authors might be expecting.
+  / https://github.com/rstudio/shiny/issues/2630
+  /
+  / For a concrete example, leaflet has some methods (e.g., updateBounds)
+  / which reference Shiny methods registered in initShiny (e.g., setInputValue).
+  / Since leaflet is privy to this life-cycle, it knows to use setTimeout() to
+  / delay execution of those methods (until Shiny methods are ready)
+  / https://github.com/rstudio/leaflet/blob/18ec981/javascript/src/index.js#L266-L268
+  /
+  / Ideally widget authors wouldn't need to use this setTimeout() hack that
+  / leaflet uses to call Shiny methods on a staticRender(). In the long run,
+  / the logic initShiny should be broken up so that method registration happens
+  / right away, but binding happens later.
+  */
+  function maybeStaticRenderLater() {
+    if (shinyMode && has_jQuery3()) {
+      window.jQuery(window.HTMLWidgets.staticRender);
+    } else {
+      window.HTMLWidgets.staticRender();
+    }
+  }
+
+  if (document.addEventListener) {
+    document.addEventListener("DOMContentLoaded", function() {
+      document.removeEventListener("DOMContentLoaded", arguments.callee, false);
+      maybeStaticRenderLater();
+    }, false);
+  } else if (document.attachEvent) {
+    document.attachEvent("onreadystatechange", function() {
+      if (document.readyState === "complete") {
+        document.detachEvent("onreadystatechange", arguments.callee);
+        maybeStaticRenderLater();
+      }
+    });
+  }
+
+
+  window.HTMLWidgets.getAttachmentUrl = function(depname, key) {
+    // If no key, default to the first item
+    if (typeof(key) === "undefined")
+      key = 1;
+
+    var link = document.getElementById(depname + "-" + key + "-attachment");
+    if (!link) {
+      throw new Error("Attachment " + depname + "/" + key + " not found in document");
+    }
+    return link.getAttribute("href");
+  };
+
+  window.HTMLWidgets.dataframeToD3 = function(df) {
+    var names = [];
+    var length;
+    for (var name in df) {
+        if (df.hasOwnProperty(name))
+            names.push(name);
+        if (typeof(df[name]) !== "object" || typeof(df[name].length) === "undefined") {
+            throw new Error("All fields must be arrays");
+        } else if (typeof(length) !== "undefined" && length !== df[name].length) {
+            throw new Error("All fields must be arrays of the same length");
+        }
+        length = df[name].length;
+    }
+    var results = [];
+    var item;
+    for (var row = 0; row < length; row++) {
+        item = {};
+        for (var col = 0; col < names.length; col++) {
+            item[names[col]] = df[names[col]][row];
+        }
+        results.push(item);
+    }
+    return results;
+  };
+
+  window.HTMLWidgets.transposeArray2D = function(array) {
+      if (array.length === 0) return array;
+      var newArray = array[0].map(function(col, i) {
+          return array.map(function(row) {
+              return row[i]
+          })
+      });
+      return newArray;
+  };
+  // Split value at splitChar, but allow splitChar to be escaped
+  // using escapeChar. Any other characters escaped by escapeChar
+  // will be included as usual (including escapeChar itself).
+  function splitWithEscape(value, splitChar, escapeChar) {
+    var results = [];
+    var escapeMode = false;
+    var currentResult = "";
+    for (var pos = 0; pos < value.length; pos++) {
+      if (!escapeMode) {
+        if (value[pos] === splitChar) {
+          results.push(currentResult);
+          currentResult = "";
+        } else if (value[pos] === escapeChar) {
+          escapeMode = true;
+        } else {
+          currentResult += value[pos];
+        }
+      } else {
+        currentResult += value[pos];
+        escapeMode = false;
+      }
+    }
+    if (currentResult !== "") {
+      results.push(currentResult);
+    }
+    return results;
+  }
+  // Function authored by Yihui/JJ Allaire
+  window.HTMLWidgets.evaluateStringMember = function(o, member) {
+    var parts = splitWithEscape(member, '.', '\\');
+    for (var i = 0, l = parts.length; i < l; i++) {
+      var part = parts[i];
+      // part may be a character or 'numeric' member name
+      if (o !== null && typeof o === "object" && part in o) {
+        if (i == (l - 1)) { // if we are at the end of the line then evalulate
+          if (typeof o[part] === "string")
+            o[part] = tryEval(o[part]);
+        } else { // otherwise continue to next embedded object
+          o = o[part];
+        }
+      }
+    }
+  };
+
+  // Retrieve the HTMLWidget instance (i.e. the return value of an
+  // HTMLWidget binding's initialize() or factory() function)
+  // associated with an element, or null if none.
+  window.HTMLWidgets.getInstance = function(el) {
+    return elementData(el, "init_result");
+  };
+
+  // Finds the first element in the scope that matches the selector,
+  // and returns the HTMLWidget instance (i.e. the return value of
+  // an HTMLWidget binding's initialize() or factory() function)
+  // associated with that element, if any. If no element matches the
+  // selector, or the first matching element has no HTMLWidget
+  // instance associated with it, then null is returned.
+  //
+  // The scope argument is optional, and defaults to window.document.
+  window.HTMLWidgets.find = function(scope, selector) {
+    if (arguments.length == 1) {
+      selector = scope;
+      scope = document;
+    }
+
+    var el = scope.querySelector(selector);
+    if (el === null) {
+      return null;
+    } else {
+      return window.HTMLWidgets.getInstance(el);
+    }
+  };
+
+  // Finds all elements in the scope that match the selector, and
+  // returns the HTMLWidget instances (i.e. the return values of
+  // an HTMLWidget binding's initialize() or factory() function)
+  // associated with the elements, in an array. If elements that
+  // match the selector don't have an associated HTMLWidget
+  // instance, the returned array will contain nulls.
+  //
+  // The scope argument is optional, and defaults to window.document.
+  window.HTMLWidgets.findAll = function(scope, selector) {
+    if (arguments.length == 1) {
+      selector = scope;
+      scope = document;
+    }
+
+    var nodes = scope.querySelectorAll(selector);
+    var results = [];
+    for (var i = 0; i < nodes.length; i++) {
+      results.push(window.HTMLWidgets.getInstance(nodes[i]));
+    }
+    return results;
+  };
+
+  var postRenderHandlers = [];
+  function invokePostRenderHandlers() {
+    while (postRenderHandlers.length) {
+      var handler = postRenderHandlers.shift();
+      if (handler) {
+        handler();
+      }
+    }
+  }
+
+  // Register the given callback function to be invoked after the
+  // next time static widgets are rendered.
+  window.HTMLWidgets.addPostRenderHandler = function(callback) {
+    postRenderHandlers.push(callback);
+  };
+
+  // Takes a new-style instance-bound definition, and returns an
+  // old-style class-bound definition. This saves us from having
+  // to rewrite all the logic in this file to accomodate both
+  // types of definitions.
+  function createLegacyDefinitionAdapter(defn) {
+    var result = {
+      name: defn.name,
+      type: defn.type,
+      initialize: function(el, width, height) {
+        return defn.factory(el, width, height);
+      },
+      renderValue: function(el, x, instance) {
+        return instance.renderValue(x);
+      },
+      resize: function(el, width, height, instance) {
+        return instance.resize(width, height);
+      }
+    };
+
+    if (defn.find)
+      result.find = defn.find;
+    if (defn.renderError)
+      result.renderError = defn.renderError;
+    if (defn.clearError)
+      result.clearError = defn.clearError;
+
+    return result;
+  }
+})();
diff --git a/docs/site_libs/jquery-1.12.4/jquery.min.js b/docs/site_libs/jquery-1.12.4/jquery.min.js
new file mode 100644
index 00000000..e8364758
--- /dev/null
+++ b/docs/site_libs/jquery-1.12.4/jquery.min.js
@@ -0,0 +1,5 @@
+/*! jQuery v1.12.4 | (c) jQuery Foundation | jquery.org/license */
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+padding:"inner"+a,content:b,"":"outer"+a},function(c,d){n.fn[d]=function(d,e){var f=arguments.length&&(c||"boolean"!=typeof d),g=c||(d===!0||e===!0?"margin":"border");return Y(this,function(b,c,d){var e;return n.isWindow(b)?b.document.documentElement["client"+a]:9===b.nodeType?(e=b.documentElement,Math.max(b.body["scroll"+a],e["scroll"+a],b.body["offset"+a],e["offset"+a],e["client"+a])):void 0===d?n.css(b,c,g):n.style(b,c,d,g)},b,f?d:void 0,f,null)}})}),n.fn.extend({bind:function(a,b,c){return this.on(a,null,b,c)},unbind:function(a,b){return this.off(a,null,b)},delegate:function(a,b,c,d){return this.on(b,a,c,d)},undelegate:function(a,b,c){return 1===arguments.length?this.off(a,"**"):this.off(b,a||"**",c)}}),n.fn.size=function(){return this.length},n.fn.andSelf=n.fn.addBack,"function"==typeof define&&define.amd&&define("jquery",[],function(){return n});var nc=a.jQuery,oc=a.$;return n.noConflict=function(b){return a.$===n&&(a.$=oc),b&&a.jQuery===n&&(a.jQuery=nc),n},b||(a.jQuery=a.$=n),n});
diff --git a/docs/site_libs/kePrint-0.0.1/kePrint.js b/docs/site_libs/kePrint-0.0.1/kePrint.js
new file mode 100644
index 00000000..e6fbbfc4
--- /dev/null
+++ b/docs/site_libs/kePrint-0.0.1/kePrint.js
@@ -0,0 +1,8 @@
+$(document).ready(function(){
+    if (typeof $('[data-toggle="tooltip"]').tooltip === 'function') {
+        $('[data-toggle="tooltip"]').tooltip();
+    }
+    if ($('[data-toggle="popover"]').popover === 'function') {
+        $('[data-toggle="popover"]').popover();
+    }
+});
diff --git a/docs/site_libs/leaflet-binding-2.1.2/leaflet.js b/docs/site_libs/leaflet-binding-2.1.2/leaflet.js
new file mode 100644
index 00000000..1eafcbe0
--- /dev/null
+++ b/docs/site_libs/leaflet-binding-2.1.2/leaflet.js
@@ -0,0 +1,2785 @@
+(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = undefined;
+
+var _util = require("./util");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var ClusterLayerStore = /*#__PURE__*/function () {
+  function ClusterLayerStore(group) {
+    _classCallCheck(this, ClusterLayerStore);
+
+    this._layers = {};
+    this._group = group;
+  }
+
+  _createClass(ClusterLayerStore, [{
+    key: "add",
+    value: function add(layer, id) {
+      if (typeof id !== "undefined" && id !== null) {
+        if (this._layers[id]) {
+          this._group.removeLayer(this._layers[id]);
+        }
+
+        this._layers[id] = layer;
+      }
+
+      this._group.addLayer(layer);
+    }
+  }, {
+    key: "remove",
+    value: function remove(id) {
+      if (typeof id === "undefined" || id === null) {
+        return;
+      }
+
+      id = (0, _util.asArray)(id);
+
+      for (var i = 0; i < id.length; i++) {
+        if (this._layers[id[i]]) {
+          this._group.removeLayer(this._layers[id[i]]);
+
+          delete this._layers[id[i]];
+        }
+      }
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      this._layers = {};
+
+      this._group.clearLayers();
+    }
+  }]);
+
+  return ClusterLayerStore;
+}();
+
+exports["default"] = ClusterLayerStore;
+
+
+},{"./util":17}],2:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var ControlStore = /*#__PURE__*/function () {
+  function ControlStore(map) {
+    _classCallCheck(this, ControlStore);
+
+    this._controlsNoId = [];
+    this._controlsById = {};
+    this._map = map;
+  }
+
+  _createClass(ControlStore, [{
+    key: "add",
+    value: function add(control, id, html) {
+      if (typeof id !== "undefined" && id !== null) {
+        if (this._controlsById[id]) {
+          this._map.removeControl(this._controlsById[id]);
+        }
+
+        this._controlsById[id] = control;
+      } else {
+        this._controlsNoId.push(control);
+      }
+
+      this._map.addControl(control);
+    }
+  }, {
+    key: "get",
+    value: function get(id) {
+      var control = null;
+
+      if (this._controlsById[id]) {
+        control = this._controlsById[id];
+      }
+
+      return control;
+    }
+  }, {
+    key: "remove",
+    value: function remove(id) {
+      if (this._controlsById[id]) {
+        var control = this._controlsById[id];
+
+        this._map.removeControl(control);
+
+        delete this._controlsById[id];
+      }
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      for (var i = 0; i < this._controlsNoId.length; i++) {
+        var control = this._controlsNoId[i];
+
+        this._map.removeControl(control);
+      }
+
+      this._controlsNoId = [];
+
+      for (var key in this._controlsById) {
+        var _control = this._controlsById[key];
+
+        this._map.removeControl(_control);
+      }
+
+      this._controlsById = {};
+    }
+  }]);
+
+  return ControlStore;
+}();
+
+exports["default"] = ControlStore;
+
+
+},{}],3:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getCRS = getCRS;
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _proj4leaflet = require("./global/proj4leaflet");
+
+var _proj4leaflet2 = _interopRequireDefault(_proj4leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// Helper function to instanciate a ICRS instance.
+function getCRS(crsOptions) {
+  var crs = _leaflet2["default"].CRS.EPSG3857; // Default Spherical Mercator
+
+  switch (crsOptions.crsClass) {
+    case "L.CRS.EPSG3857":
+      crs = _leaflet2["default"].CRS.EPSG3857;
+      break;
+
+    case "L.CRS.EPSG4326":
+      crs = _leaflet2["default"].CRS.EPSG4326;
+      break;
+
+    case "L.CRS.EPSG3395":
+      crs = _leaflet2["default"].CRS.EPSG3395;
+      break;
+
+    case "L.CRS.Simple":
+      crs = _leaflet2["default"].CRS.Simple;
+      break;
+
+    case "L.Proj.CRS":
+      if (crsOptions.options && crsOptions.options.bounds) {
+        crsOptions.options.bounds = _leaflet2["default"].bounds(crsOptions.options.bounds);
+      }
+
+      if (crsOptions.options && crsOptions.options.transformation) {
+        crsOptions.options.transformation = new _leaflet2["default"].Transformation(crsOptions.options.transformation[0], crsOptions.options.transformation[1], crsOptions.options.transformation[2], crsOptions.options.transformation[3]);
+      }
+
+      crs = new _proj4leaflet2["default"].CRS(crsOptions.code, crsOptions.proj4def, crsOptions.options);
+      break;
+
+    case "L.Proj.CRS.TMS":
+      if (crsOptions.options && crsOptions.options.bounds) {
+        crsOptions.options.bounds = _leaflet2["default"].bounds(crsOptions.options.bounds);
+      }
+
+      if (crsOptions.options && crsOptions.options.transformation) {
+        crsOptions.options.transformation = _leaflet2["default"].Transformation(crsOptions.options.transformation[0], crsOptions.options.transformation[1], crsOptions.options.transformation[2], crsOptions.options.transformation[3]);
+      } // L.Proj.CRS.TMS is deprecated as of Leaflet 1.x, fall back to L.Proj.CRS
+      //crs = new Proj4Leaflet.CRS.TMS(crsOptions.code, crsOptions.proj4def, crsOptions.projectedBounds, crsOptions.options);
+
+
+      crs = new _proj4leaflet2["default"].CRS(crsOptions.code, crsOptions.proj4def, crsOptions.options);
+      break;
+  }
+
+  return crs;
+}
+
+
+},{"./global/leaflet":10,"./global/proj4leaflet":11}],4:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = undefined;
+
+var _util = require("./util");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var DataFrame = /*#__PURE__*/function () {
+  function DataFrame() {
+    _classCallCheck(this, DataFrame);
+
+    this.columns = [];
+    this.colnames = [];
+    this.colstrict = [];
+    this.effectiveLength = 0;
+    this.colindices = {};
+  }
+
+  _createClass(DataFrame, [{
+    key: "_updateCachedProperties",
+    value: function _updateCachedProperties() {
+      var _this = this;
+
+      this.effectiveLength = 0;
+      this.colindices = {};
+      this.columns.forEach(function (column, i) {
+        _this.effectiveLength = Math.max(_this.effectiveLength, column.length);
+        _this.colindices[_this.colnames[i]] = i;
+      });
+    }
+  }, {
+    key: "_colIndex",
+    value: function _colIndex(colname) {
+      var index = this.colindices[colname];
+      if (typeof index === "undefined") return -1;
+      return index;
+    }
+  }, {
+    key: "col",
+    value: function col(name, values, strict) {
+      if (typeof name !== "string") throw new Error("Invalid column name \"" + name + "\"");
+
+      var index = this._colIndex(name);
+
+      if (arguments.length === 1) {
+        if (index < 0) return null;else return (0, _util.recycle)(this.columns[index], this.effectiveLength);
+      }
+
+      if (index < 0) {
+        index = this.colnames.length;
+        this.colnames.push(name);
+      }
+
+      this.columns[index] = (0, _util.asArray)(values);
+      this.colstrict[index] = !!strict; // TODO: Validate strictness (ensure lengths match up with other stricts)
+
+      this._updateCachedProperties();
+
+      return this;
+    }
+  }, {
+    key: "cbind",
+    value: function cbind(obj, strict) {
+      var _this2 = this;
+
+      Object.keys(obj).forEach(function (name) {
+        var coldata = obj[name];
+
+        _this2.col(name, coldata);
+      });
+      return this;
+    }
+  }, {
+    key: "get",
+    value: function get(row, col, missingOK) {
+      var _this3 = this;
+
+      if (row > this.effectiveLength) throw new Error("Row argument was out of bounds: " + row + " > " + this.effectiveLength);
+      var colIndex = -1;
+
+      if (typeof col === "undefined") {
+        var rowData = {};
+        this.colnames.forEach(function (name, i) {
+          rowData[name] = _this3.columns[i][row % _this3.columns[i].length];
+        });
+        return rowData;
+      } else if (typeof col === "string") {
+        colIndex = this._colIndex(col);
+      } else if (typeof col === "number") {
+        colIndex = col;
+      }
+
+      if (colIndex < 0 || colIndex > this.columns.length) {
+        if (missingOK) return void 0;else throw new Error("Unknown column index: " + col);
+      }
+
+      return this.columns[colIndex][row % this.columns[colIndex].length];
+    }
+  }, {
+    key: "nrow",
+    value: function nrow() {
+      return this.effectiveLength;
+    }
+  }]);
+
+  return DataFrame;
+}();
+
+exports["default"] = DataFrame;
+
+
+},{"./util":17}],5:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// In RMarkdown's self-contained mode, we don't have a way to carry around the
+// images that Leaflet needs but doesn't load into the page. Instead, we'll use
+// the unpkg CDN.
+if (typeof _leaflet2["default"].Icon.Default.imagePath === "undefined") {
+  _leaflet2["default"].Icon.Default.imagePath = "https://unpkg.com/leaflet@1.3.1/dist/images/";
+}
+
+
+},{"./global/leaflet":10}],6:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// add texxtsize, textOnly, and style
+_leaflet2["default"].Tooltip.prototype.options.textsize = "10px";
+_leaflet2["default"].Tooltip.prototype.options.textOnly = false;
+_leaflet2["default"].Tooltip.prototype.options.style = null; // copy original layout to not completely stomp it.
+
+var initLayoutOriginal = _leaflet2["default"].Tooltip.prototype._initLayout;
+
+_leaflet2["default"].Tooltip.prototype._initLayout = function () {
+  initLayoutOriginal.call(this);
+  this._container.style.fontSize = this.options.textsize;
+
+  if (this.options.textOnly) {
+    _leaflet2["default"].DomUtil.addClass(this._container, "leaflet-tooltip-text-only");
+  }
+
+  if (this.options.style) {
+    for (var property in this.options.style) {
+      this._container.style[property] = this.options.style[property];
+    }
+  }
+};
+
+
+},{"./global/leaflet":10}],7:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+var protocolRegex = /^\/\//;
+
+var upgrade_protocol = function upgrade_protocol(urlTemplate) {
+  if (protocolRegex.test(urlTemplate)) {
+    if (window.location.protocol === "file:") {
+      // if in a local file, support http
+      // http should auto upgrade if necessary
+      urlTemplate = "http:" + urlTemplate;
+    }
+  }
+
+  return urlTemplate;
+};
+
+var originalLTileLayerInitialize = _leaflet2["default"].TileLayer.prototype.initialize;
+
+_leaflet2["default"].TileLayer.prototype.initialize = function (urlTemplate, options) {
+  urlTemplate = upgrade_protocol(urlTemplate);
+  originalLTileLayerInitialize.call(this, urlTemplate, options);
+};
+
+var originalLTileLayerWMSInitialize = _leaflet2["default"].TileLayer.WMS.prototype.initialize;
+
+_leaflet2["default"].TileLayer.WMS.prototype.initialize = function (urlTemplate, options) {
+  urlTemplate = upgrade_protocol(urlTemplate);
+  originalLTileLayerWMSInitialize.call(this, urlTemplate, options);
+};
+
+
+},{"./global/leaflet":10}],8:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.HTMLWidgets;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],9:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.jQuery;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],10:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.L;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],11:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.L.Proj;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],12:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.Shiny;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],13:[function(require,module,exports){
+"use strict";
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _shiny = require("./global/shiny");
+
+var _shiny2 = _interopRequireDefault(_shiny);
+
+var _htmlwidgets = require("./global/htmlwidgets");
+
+var _htmlwidgets2 = _interopRequireDefault(_htmlwidgets);
+
+var _util = require("./util");
+
+var _crs_utils = require("./crs_utils");
+
+var _controlStore = require("./control-store");
+
+var _controlStore2 = _interopRequireDefault(_controlStore);
+
+var _layerManager = require("./layer-manager");
+
+var _layerManager2 = _interopRequireDefault(_layerManager);
+
+var _methods = require("./methods");
+
+var _methods2 = _interopRequireDefault(_methods);
+
+require("./fixup-default-icon");
+
+require("./fixup-default-tooltip");
+
+require("./fixup-url-protocol");
+
+var _dataframe = require("./dataframe");
+
+var _dataframe2 = _interopRequireDefault(_dataframe);
+
+var _clusterLayerStore = require("./cluster-layer-store");
+
+var _clusterLayerStore2 = _interopRequireDefault(_clusterLayerStore);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+window.LeafletWidget = {};
+window.LeafletWidget.utils = {};
+
+var methods = window.LeafletWidget.methods = _jquery2["default"].extend({}, _methods2["default"]);
+
+window.LeafletWidget.DataFrame = _dataframe2["default"];
+window.LeafletWidget.ClusterLayerStore = _clusterLayerStore2["default"];
+window.LeafletWidget.utils.getCRS = _crs_utils.getCRS; // Send updated bounds back to app. Takes a leaflet event object as input.
+
+function updateBounds(map) {
+  var id = map.getContainer().id;
+  var bounds = map.getBounds();
+
+  _shiny2["default"].onInputChange(id + "_bounds", {
+    north: bounds.getNorthEast().lat,
+    east: bounds.getNorthEast().lng,
+    south: bounds.getSouthWest().lat,
+    west: bounds.getSouthWest().lng
+  });
+
+  _shiny2["default"].onInputChange(id + "_center", {
+    lng: map.getCenter().lng,
+    lat: map.getCenter().lat
+  });
+
+  _shiny2["default"].onInputChange(id + "_zoom", map.getZoom());
+}
+
+function preventUnintendedZoomOnScroll(map) {
+  // Prevent unwanted scroll capturing. Similar in purpose to
+  // https://github.com/CliffCloud/Leaflet.Sleep but with a
+  // different set of heuristics.
+  // The basic idea is that when a mousewheel/DOMMouseScroll
+  // event is seen, we disable scroll wheel zooming until the
+  // user moves their mouse cursor or clicks on the map. This
+  // is slightly trickier than just listening for mousemove,
+  // because mousemove is fired when the page is scrolled,
+  // even if the user did not physically move the mouse. We
+  // handle this by examining the mousemove event's screenX
+  // and screenY properties; if they change, we know it's a
+  // "true" move.
+  // lastScreen can never be null, but its x and y can.
+  var lastScreen = {
+    x: null,
+    y: null
+  };
+  (0, _jquery2["default"])(document).on("mousewheel DOMMouseScroll", "*", function (e) {
+    // Disable zooming (until the mouse moves or click)
+    map.scrollWheelZoom.disable(); // Any mousemove events at this screen position will be ignored.
+
+    lastScreen = {
+      x: e.originalEvent.screenX,
+      y: e.originalEvent.screenY
+    };
+  });
+  (0, _jquery2["default"])(document).on("mousemove", "*", function (e) {
+    // Did the mouse really move?
+    if (lastScreen.x !== null && e.screenX !== lastScreen.x || e.screenY !== lastScreen.y) {
+      // It really moved. Enable zooming.
+      map.scrollWheelZoom.enable();
+      lastScreen = {
+        x: null,
+        y: null
+      };
+    }
+  });
+  (0, _jquery2["default"])(document).on("mousedown", ".leaflet", function (e) {
+    // Clicking always enables zooming.
+    map.scrollWheelZoom.enable();
+    lastScreen = {
+      x: null,
+      y: null
+    };
+  });
+}
+
+_htmlwidgets2["default"].widget({
+  name: "leaflet",
+  type: "output",
+  factory: function factory(el, width, height) {
+    var map = null;
+    return {
+      // we need to store our map in our returned object.
+      getMap: function getMap() {
+        return map;
+      },
+      renderValue: function renderValue(data) {
+        // Create an appropriate CRS Object if specified
+        if (data && data.options && data.options.crs) {
+          data.options.crs = (0, _crs_utils.getCRS)(data.options.crs);
+        } // As per https://github.com/rstudio/leaflet/pull/294#discussion_r79584810
+
+
+        if (map) {
+          map.remove();
+
+          map = function () {
+            return;
+          }(); // undefine map
+
+        }
+
+        if (data.options.mapFactory && typeof data.options.mapFactory === "function") {
+          map = data.options.mapFactory(el, data.options);
+        } else {
+          map = _leaflet2["default"].map(el, data.options);
+        }
+
+        preventUnintendedZoomOnScroll(map); // Store some state in the map object
+
+        map.leafletr = {
+          // Has the map ever rendered successfully?
+          hasRendered: false,
+          // Data to be rendered when resize is called with area != 0
+          pendingRenderData: null
+        }; // Check if the map is rendered statically (no output binding)
+
+        if (_htmlwidgets2["default"].shinyMode && /\bshiny-bound-output\b/.test(el.className)) {
+          map.id = el.id; // Store the map on the element so we can find it later by ID
+
+          (0, _jquery2["default"])(el).data("leaflet-map", map); // When the map is clicked, send the coordinates back to the app
+
+          map.on("click", function (e) {
+            _shiny2["default"].onInputChange(map.id + "_click", {
+              lat: e.latlng.lat,
+              lng: e.latlng.lng,
+              ".nonce": Math.random() // Force reactivity if lat/lng hasn't changed
+
+            });
+          });
+          var groupTimerId = null;
+          map.on("moveend", function (e) {
+            updateBounds(e.target);
+          }).on("layeradd layerremove", function (e) {
+            // If the layer that's coming or going is a group we created, tell
+            // the server.
+            if (map.layerManager.getGroupNameFromLayerGroup(e.layer)) {
+              // But to avoid chattiness, coalesce events
+              if (groupTimerId) {
+                clearTimeout(groupTimerId);
+                groupTimerId = null;
+              }
+
+              groupTimerId = setTimeout(function () {
+                groupTimerId = null;
+
+                _shiny2["default"].onInputChange(map.id + "_groups", map.layerManager.getVisibleGroups());
+              }, 100);
+            }
+          });
+        }
+
+        this.doRenderValue(data, map);
+      },
+      doRenderValue: function doRenderValue(data, map) {
+        // Leaflet does not behave well when you set up a bunch of layers when
+        // the map is not visible (width/height == 0). Popups get misaligned
+        // relative to their owning markers, and the fitBounds calculations
+        // are off. Therefore we wait until the map is actually showing to
+        // render the value (we rely on the resize() callback being invoked
+        // at the appropriate time).
+        if (el.offsetWidth === 0 || el.offsetHeight === 0) {
+          map.leafletr.pendingRenderData = data;
+          return;
+        }
+
+        map.leafletr.pendingRenderData = null; // Merge data options into defaults
+
+        var options = _jquery2["default"].extend({
+          zoomToLimits: "always"
+        }, data.options);
+
+        if (!map.layerManager) {
+          map.controls = new _controlStore2["default"](map);
+          map.layerManager = new _layerManager2["default"](map);
+        } else {
+          map.controls.clear();
+          map.layerManager.clear();
+        }
+
+        var explicitView = false;
+
+        if (data.setView) {
+          explicitView = true;
+          map.setView.apply(map, data.setView);
+        }
+
+        if (data.fitBounds) {
+          explicitView = true;
+          methods.fitBounds.apply(map, data.fitBounds);
+        }
+
+        if (data.flyTo) {
+          if (!explicitView && !map.leafletr.hasRendered) {
+            // must be done to give a initial starting point
+            map.fitWorld();
+          }
+
+          explicitView = true;
+          map.flyTo.apply(map, data.flyTo);
+        }
+
+        if (data.flyToBounds) {
+          if (!explicitView && !map.leafletr.hasRendered) {
+            // must be done to give a initial starting point
+            map.fitWorld();
+          }
+
+          explicitView = true;
+          methods.flyToBounds.apply(map, data.flyToBounds);
+        }
+
+        if (data.options.center) {
+          explicitView = true;
+        } // Returns true if the zoomToLimits option says that the map should be
+        // zoomed to map elements.
+
+
+        function needsZoom() {
+          return options.zoomToLimits === "always" || options.zoomToLimits === "first" && !map.leafletr.hasRendered;
+        }
+
+        if (!explicitView && needsZoom() && !map.getZoom()) {
+          if (data.limits && !_jquery2["default"].isEmptyObject(data.limits)) {
+            // Use the natural limits of what's being drawn on the map
+            // If the size of the bounding box is 0, leaflet gets all weird
+            var pad = 0.006;
+
+            if (data.limits.lat[0] === data.limits.lat[1]) {
+              data.limits.lat[0] = data.limits.lat[0] - pad;
+              data.limits.lat[1] = data.limits.lat[1] + pad;
+            }
+
+            if (data.limits.lng[0] === data.limits.lng[1]) {
+              data.limits.lng[0] = data.limits.lng[0] - pad;
+              data.limits.lng[1] = data.limits.lng[1] + pad;
+            }
+
+            map.fitBounds([[data.limits.lat[0], data.limits.lng[0]], [data.limits.lat[1], data.limits.lng[1]]]);
+          } else {
+            map.fitWorld();
+          }
+        }
+
+        for (var i = 0; data.calls && i < data.calls.length; i++) {
+          var call = data.calls[i];
+          if (methods[call.method]) methods[call.method].apply(map, call.args);else (0, _util.log)("Unknown method " + call.method);
+        }
+
+        map.leafletr.hasRendered = true;
+
+        if (_htmlwidgets2["default"].shinyMode) {
+          setTimeout(function () {
+            updateBounds(map);
+          }, 1);
+        }
+      },
+      resize: function resize(width, height) {
+        if (map) {
+          map.invalidateSize();
+
+          if (map.leafletr.pendingRenderData) {
+            this.doRenderValue(map.leafletr.pendingRenderData, map);
+          }
+        }
+      }
+    };
+  }
+});
+
+if (_htmlwidgets2["default"].shinyMode) {
+  _shiny2["default"].addCustomMessageHandler("leaflet-calls", function (data) {
+    var id = data.id;
+    var el = document.getElementById(id);
+    var map = el ? (0, _jquery2["default"])(el).data("leaflet-map") : null;
+
+    if (!map) {
+      (0, _util.log)("Couldn't find map with id " + id);
+      return;
+    } // If the map has not rendered, stash the proposed `leafletProxy()` calls
+    // in `pendingRenderData.calls` to be run on display via `doRenderValue()`.
+    // This is necessary if the map has not been rendered.
+    // If new pendingRenderData is set via a new `leaflet()`, the previous calls will be discarded.
+
+
+    if (!map.leafletr.hasRendered) {
+      map.leafletr.pendingRenderData.calls = map.leafletr.pendingRenderData.calls.concat(data.calls);
+      return;
+    }
+
+    for (var i = 0; i < data.calls.length; i++) {
+      var call = data.calls[i];
+      var args = call.args;
+
+      for (var _i = 0; _i < call.evals.length; _i++) {
+        window.HTMLWidgets.evaluateStringMember(args, call.evals[_i]);
+      }
+
+      if (call.dependencies) {
+        _shiny2["default"].renderDependencies(call.dependencies);
+      }
+
+      if (methods[call.method]) methods[call.method].apply(map, args);else (0, _util.log)("Unknown method " + call.method);
+    }
+  });
+}
+
+
+},{"./cluster-layer-store":1,"./control-store":2,"./crs_utils":3,"./dataframe":4,"./fixup-default-icon":5,"./fixup-default-tooltip":6,"./fixup-url-protocol":7,"./global/htmlwidgets":8,"./global/jquery":9,"./global/leaflet":10,"./global/shiny":12,"./layer-manager":14,"./methods":15,"./util":17}],14:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = undefined;
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _util = require("./util");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var LayerManager = /*#__PURE__*/function () {
+  function LayerManager(map) {
+    _classCallCheck(this, LayerManager);
+
+    this._map = map; // BEGIN layer indices
+    // {<groupname>: {<stamp>: layer}}
+
+    this._byGroup = {}; // {<categoryName>: {<stamp>: layer}}
+
+    this._byCategory = {}; // {<categoryName_layerId>: layer}
+
+    this._byLayerId = {}; // {<stamp>: {
+    //             "group": <groupname>,
+    //             "layerId": <layerId>,
+    //             "category": <category>,
+    //             "container": <container>
+    //           }
+    // }
+
+    this._byStamp = {}; // {<crosstalkGroupName>: {<key>: [<stamp>, <stamp>, ...], ...}}
+
+    this._byCrosstalkGroup = {}; // END layer indices
+    // {<categoryName>: L.layerGroup}
+
+    this._categoryContainers = {}; // {<groupName>: L.layerGroup}
+
+    this._groupContainers = {};
+  }
+
+  _createClass(LayerManager, [{
+    key: "addLayer",
+    value: function addLayer(layer, category, layerId, group, ctGroup, ctKey) {
+      var _this = this;
+
+      // Was a group provided?
+      var hasId = typeof layerId === "string";
+      var grouped = typeof group === "string";
+      var stamp = _leaflet2["default"].Util.stamp(layer) + ""; // This will be the default layer group to add the layer to.
+      // We may overwrite this let before using it (i.e. if a group is assigned).
+      // This one liner creates the _categoryContainers[category] entry if it
+      // doesn't already exist.
+
+      var container = this._categoryContainers[category] = this._categoryContainers[category] || _leaflet2["default"].layerGroup().addTo(this._map);
+
+      var oldLayer = null;
+
+      if (hasId) {
+        // First, remove any layer with the same category and layerId
+        var prefixedLayerId = this._layerIdKey(category, layerId);
+
+        oldLayer = this._byLayerId[prefixedLayerId];
+
+        if (oldLayer) {
+          this._removeLayer(oldLayer);
+        } // Update layerId index
+
+
+        this._byLayerId[prefixedLayerId] = layer;
+      } // Update group index
+
+
+      if (grouped) {
+        this._byGroup[group] = this._byGroup[group] || {};
+        this._byGroup[group][stamp] = layer; // Since a group is assigned, don't add the layer to the category's layer
+        // group; instead, use the group's layer group.
+        // This one liner creates the _groupContainers[group] entry if it doesn't
+        // already exist.
+
+        container = this.getLayerGroup(group, true);
+      } // Update category index
+
+
+      this._byCategory[category] = this._byCategory[category] || {};
+      this._byCategory[category][stamp] = layer; // Update stamp index
+
+      var layerInfo = this._byStamp[stamp] = {
+        layer: layer,
+        group: group,
+        ctGroup: ctGroup,
+        ctKey: ctKey,
+        layerId: layerId,
+        category: category,
+        container: container,
+        hidden: false
+      }; // Update crosstalk group index
+
+      if (ctGroup) {
+        if (layer.setStyle) {
+          // Need to save this info so we know what to set opacity to later
+          layer.options.origOpacity = typeof layer.options.opacity !== "undefined" ? layer.options.opacity : 0.5;
+          layer.options.origFillOpacity = typeof layer.options.fillOpacity !== "undefined" ? layer.options.fillOpacity : 0.2;
+        }
+
+        var ctg = this._byCrosstalkGroup[ctGroup];
+
+        if (!ctg) {
+          ctg = this._byCrosstalkGroup[ctGroup] = {};
+          var crosstalk = global.crosstalk;
+
+          var handleFilter = function handleFilter(e) {
+            if (!e.value) {
+              var groupKeys = Object.keys(ctg);
+
+              for (var i = 0; i < groupKeys.length; i++) {
+                var key = groupKeys[i];
+                var _layerInfo = _this._byStamp[ctg[key]];
+
+                _this._setVisibility(_layerInfo, true);
+              }
+            } else {
+              var selectedKeys = {};
+
+              for (var _i = 0; _i < e.value.length; _i++) {
+                selectedKeys[e.value[_i]] = true;
+              }
+
+              var _groupKeys = Object.keys(ctg);
+
+              for (var _i2 = 0; _i2 < _groupKeys.length; _i2++) {
+                var _key = _groupKeys[_i2];
+                var _layerInfo2 = _this._byStamp[ctg[_key]];
+
+                _this._setVisibility(_layerInfo2, selectedKeys[_groupKeys[_i2]]);
+              }
+            }
+          };
+
+          var filterHandle = new crosstalk.FilterHandle(ctGroup);
+          filterHandle.on("change", handleFilter);
+
+          var handleSelection = function handleSelection(e) {
+            if (!e.value || !e.value.length) {
+              var groupKeys = Object.keys(ctg);
+
+              for (var i = 0; i < groupKeys.length; i++) {
+                var key = groupKeys[i];
+                var _layerInfo3 = _this._byStamp[ctg[key]];
+
+                _this._setOpacity(_layerInfo3, 1.0);
+              }
+            } else {
+              var selectedKeys = {};
+
+              for (var _i3 = 0; _i3 < e.value.length; _i3++) {
+                selectedKeys[e.value[_i3]] = true;
+              }
+
+              var _groupKeys2 = Object.keys(ctg);
+
+              for (var _i4 = 0; _i4 < _groupKeys2.length; _i4++) {
+                var _key2 = _groupKeys2[_i4];
+                var _layerInfo4 = _this._byStamp[ctg[_key2]];
+
+                _this._setOpacity(_layerInfo4, selectedKeys[_groupKeys2[_i4]] ? 1.0 : 0.2);
+              }
+            }
+          };
+
+          var selHandle = new crosstalk.SelectionHandle(ctGroup);
+          selHandle.on("change", handleSelection);
+          setTimeout(function () {
+            handleFilter({
+              value: filterHandle.filteredKeys
+            });
+            handleSelection({
+              value: selHandle.value
+            });
+          }, 100);
+        }
+
+        if (!ctg[ctKey]) ctg[ctKey] = [];
+        ctg[ctKey].push(stamp);
+      } // Add to container
+
+
+      if (!layerInfo.hidden) container.addLayer(layer);
+      return oldLayer;
+    }
+  }, {
+    key: "brush",
+    value: function brush(bounds, extraInfo) {
+      var _this2 = this;
+
+      /* eslint-disable no-console */
+      // For each Crosstalk group...
+      Object.keys(this._byCrosstalkGroup).forEach(function (ctGroupName) {
+        var ctg = _this2._byCrosstalkGroup[ctGroupName];
+        var selection = []; // ...iterate over each Crosstalk key (each of which may have multiple
+        // layers)...
+
+        Object.keys(ctg).forEach(function (ctKey) {
+          // ...and for each layer...
+          ctg[ctKey].forEach(function (stamp) {
+            var layerInfo = _this2._byStamp[stamp]; // ...if it's something with a point...
+
+            if (layerInfo.layer.getLatLng) {
+              // ... and it's inside the selection bounds...
+              // TODO: Use pixel containment, not lat/lng containment
+              if (bounds.contains(layerInfo.layer.getLatLng())) {
+                // ...add the key to the selection.
+                selection.push(ctKey);
+              }
+            }
+          });
+        });
+        new global.crosstalk.SelectionHandle(ctGroupName).set(selection, extraInfo);
+      });
+    }
+  }, {
+    key: "unbrush",
+    value: function unbrush(extraInfo) {
+      Object.keys(this._byCrosstalkGroup).forEach(function (ctGroupName) {
+        new global.crosstalk.SelectionHandle(ctGroupName).clear(extraInfo);
+      });
+    }
+  }, {
+    key: "_setVisibility",
+    value: function _setVisibility(layerInfo, visible) {
+      if (layerInfo.hidden ^ visible) {
+        return;
+      } else if (visible) {
+        layerInfo.container.addLayer(layerInfo.layer);
+        layerInfo.hidden = false;
+      } else {
+        layerInfo.container.removeLayer(layerInfo.layer);
+        layerInfo.hidden = true;
+      }
+    }
+  }, {
+    key: "_setOpacity",
+    value: function _setOpacity(layerInfo, opacity) {
+      if (layerInfo.layer.setOpacity) {
+        layerInfo.layer.setOpacity(opacity);
+      } else if (layerInfo.layer.setStyle) {
+        layerInfo.layer.setStyle({
+          opacity: opacity * layerInfo.layer.options.origOpacity,
+          fillOpacity: opacity * layerInfo.layer.options.origFillOpacity
+        });
+      }
+    }
+  }, {
+    key: "getLayer",
+    value: function getLayer(category, layerId) {
+      return this._byLayerId[this._layerIdKey(category, layerId)];
+    }
+  }, {
+    key: "removeLayer",
+    value: function removeLayer(category, layerIds) {
+      var _this3 = this;
+
+      // Find layer info
+      _jquery2["default"].each((0, _util.asArray)(layerIds), function (i, layerId) {
+        var layer = _this3._byLayerId[_this3._layerIdKey(category, layerId)];
+
+        if (layer) {
+          _this3._removeLayer(layer);
+        }
+      });
+    }
+  }, {
+    key: "clearLayers",
+    value: function clearLayers(category) {
+      var _this4 = this;
+
+      // Find all layers in _byCategory[category]
+      var catTable = this._byCategory[category];
+
+      if (!catTable) {
+        return false;
+      } // Remove all layers. Make copy of keys to avoid mutating the collection
+      // behind the iterator you're accessing.
+
+
+      var stamps = [];
+
+      _jquery2["default"].each(catTable, function (k, v) {
+        stamps.push(k);
+      });
+
+      _jquery2["default"].each(stamps, function (i, stamp) {
+        _this4._removeLayer(stamp);
+      });
+    }
+  }, {
+    key: "getLayerGroup",
+    value: function getLayerGroup(group, ensureExists) {
+      var g = this._groupContainers[group];
+
+      if (ensureExists && !g) {
+        this._byGroup[group] = this._byGroup[group] || {};
+        g = this._groupContainers[group] = _leaflet2["default"].featureGroup();
+        g.groupname = group;
+        g.addTo(this._map);
+      }
+
+      return g;
+    }
+  }, {
+    key: "getGroupNameFromLayerGroup",
+    value: function getGroupNameFromLayerGroup(layerGroup) {
+      return layerGroup.groupname;
+    }
+  }, {
+    key: "getVisibleGroups",
+    value: function getVisibleGroups() {
+      var _this5 = this;
+
+      var result = [];
+
+      _jquery2["default"].each(this._groupContainers, function (k, v) {
+        if (_this5._map.hasLayer(v)) {
+          result.push(k);
+        }
+      });
+
+      return result;
+    }
+  }, {
+    key: "getAllGroupNames",
+    value: function getAllGroupNames() {
+      var result = [];
+
+      _jquery2["default"].each(this._groupContainers, function (k, v) {
+        result.push(k);
+      });
+
+      return result;
+    }
+  }, {
+    key: "clearGroup",
+    value: function clearGroup(group) {
+      var _this6 = this;
+
+      // Find all layers in _byGroup[group]
+      var groupTable = this._byGroup[group];
+
+      if (!groupTable) {
+        return false;
+      } // Remove all layers. Make copy of keys to avoid mutating the collection
+      // behind the iterator you're accessing.
+
+
+      var stamps = [];
+
+      _jquery2["default"].each(groupTable, function (k, v) {
+        stamps.push(k);
+      });
+
+      _jquery2["default"].each(stamps, function (i, stamp) {
+        _this6._removeLayer(stamp);
+      });
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      function clearLayerGroup(key, layerGroup) {
+        layerGroup.clearLayers();
+      } // Clear all indices and layerGroups
+
+
+      this._byGroup = {};
+      this._byCategory = {};
+      this._byLayerId = {};
+      this._byStamp = {};
+      this._byCrosstalkGroup = {};
+
+      _jquery2["default"].each(this._categoryContainers, clearLayerGroup);
+
+      this._categoryContainers = {};
+
+      _jquery2["default"].each(this._groupContainers, clearLayerGroup);
+
+      this._groupContainers = {};
+    }
+  }, {
+    key: "_removeLayer",
+    value: function _removeLayer(layer) {
+      var stamp;
+
+      if (typeof layer === "string") {
+        stamp = layer;
+      } else {
+        stamp = _leaflet2["default"].Util.stamp(layer);
+      }
+
+      var layerInfo = this._byStamp[stamp];
+
+      if (!layerInfo) {
+        return false;
+      }
+
+      layerInfo.container.removeLayer(stamp);
+
+      if (typeof layerInfo.group === "string") {
+        delete this._byGroup[layerInfo.group][stamp];
+      }
+
+      if (typeof layerInfo.layerId === "string") {
+        delete this._byLayerId[this._layerIdKey(layerInfo.category, layerInfo.layerId)];
+      }
+
+      delete this._byCategory[layerInfo.category][stamp];
+      delete this._byStamp[stamp];
+
+      if (layerInfo.ctGroup) {
+        var ctGroup = this._byCrosstalkGroup[layerInfo.ctGroup];
+        var layersForKey = ctGroup[layerInfo.ctKey];
+        var idx = layersForKey ? layersForKey.indexOf(stamp) : -1;
+
+        if (idx >= 0) {
+          if (layersForKey.length === 1) {
+            delete ctGroup[layerInfo.ctKey];
+          } else {
+            layersForKey.splice(idx, 1);
+          }
+        }
+      }
+    }
+  }, {
+    key: "_layerIdKey",
+    value: function _layerIdKey(category, layerId) {
+      return category + "\n" + layerId;
+    }
+  }]);
+
+  return LayerManager;
+}();
+
+exports["default"] = LayerManager;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./global/jquery":9,"./global/leaflet":10,"./util":17}],15:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _shiny = require("./global/shiny");
+
+var _shiny2 = _interopRequireDefault(_shiny);
+
+var _htmlwidgets = require("./global/htmlwidgets");
+
+var _htmlwidgets2 = _interopRequireDefault(_htmlwidgets);
+
+var _util = require("./util");
+
+var _crs_utils = require("./crs_utils");
+
+var _dataframe = require("./dataframe");
+
+var _dataframe2 = _interopRequireDefault(_dataframe);
+
+var _clusterLayerStore = require("./cluster-layer-store");
+
+var _clusterLayerStore2 = _interopRequireDefault(_clusterLayerStore);
+
+var _mipmapper = require("./mipmapper");
+
+var _mipmapper2 = _interopRequireDefault(_mipmapper);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+var methods = {};
+exports["default"] = methods;
+
+function mouseHandler(mapId, layerId, group, eventName, extraInfo) {
+  return function (e) {
+    if (!_htmlwidgets2["default"].shinyMode) return;
+    var latLng = e.target.getLatLng ? e.target.getLatLng() : e.latlng;
+
+    if (latLng) {
+      // retrieve only lat, lon values to remove prototype
+      //   and extra parameters added by 3rd party modules
+      // these objects are for json serialization, not javascript
+      var latLngVal = _leaflet2["default"].latLng(latLng); // make sure it has consistent shape
+
+
+      latLng = {
+        lat: latLngVal.lat,
+        lng: latLngVal.lng
+      };
+    }
+
+    var eventInfo = _jquery2["default"].extend({
+      id: layerId,
+      ".nonce": Math.random() // force reactivity
+
+    }, group !== null ? {
+      group: group
+    } : null, latLng, extraInfo);
+
+    _shiny2["default"].onInputChange(mapId + "_" + eventName, eventInfo);
+  };
+}
+
+methods.mouseHandler = mouseHandler;
+
+methods.clearGroup = function (group) {
+  var _this = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, v) {
+    _this.layerManager.clearGroup(v);
+  });
+};
+
+methods.setView = function (center, zoom, options) {
+  this.setView(center, zoom, options);
+};
+
+methods.fitBounds = function (lat1, lng1, lat2, lng2, options) {
+  this.fitBounds([[lat1, lng1], [lat2, lng2]], options);
+};
+
+methods.flyTo = function (center, zoom, options) {
+  this.flyTo(center, zoom, options);
+};
+
+methods.flyToBounds = function (lat1, lng1, lat2, lng2, options) {
+  this.flyToBounds([[lat1, lng1], [lat2, lng2]], options);
+};
+
+methods.setMaxBounds = function (lat1, lng1, lat2, lng2) {
+  this.setMaxBounds([[lat1, lng1], [lat2, lng2]]);
+};
+
+methods.addPopups = function (lat, lng, popup, layerId, group, options) {
+  var _this2 = this;
+
+  var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("popup", popup).col("layerId", layerId).col("group", group).cbind(options);
+
+  var _loop = function _loop(i) {
+    if (_jquery2["default"].isNumeric(df.get(i, "lat")) && _jquery2["default"].isNumeric(df.get(i, "lng"))) {
+      (function () {
+        var popup = _leaflet2["default"].popup(df.get(i)).setLatLng([df.get(i, "lat"), df.get(i, "lng")]).setContent(df.get(i, "popup"));
+
+        var thisId = df.get(i, "layerId");
+        var thisGroup = df.get(i, "group");
+        this.layerManager.addLayer(popup, "popup", thisId, thisGroup);
+      }).call(_this2);
+    }
+  };
+
+  for (var i = 0; i < df.nrow(); i++) {
+    _loop(i);
+  }
+};
+
+methods.removePopup = function (layerId) {
+  this.layerManager.removeLayer("popup", layerId);
+};
+
+methods.clearPopups = function () {
+  this.layerManager.clearLayers("popup");
+};
+
+methods.addTiles = function (urlTemplate, layerId, group, options) {
+  this.layerManager.addLayer(_leaflet2["default"].tileLayer(urlTemplate, options), "tile", layerId, group);
+};
+
+methods.removeTiles = function (layerId) {
+  this.layerManager.removeLayer("tile", layerId);
+};
+
+methods.clearTiles = function () {
+  this.layerManager.clearLayers("tile");
+};
+
+methods.addWMSTiles = function (baseUrl, layerId, group, options) {
+  if (options && options.crs) {
+    options.crs = (0, _crs_utils.getCRS)(options.crs);
+  }
+
+  this.layerManager.addLayer(_leaflet2["default"].tileLayer.wms(baseUrl, options), "tile", layerId, group);
+}; // Given:
+//   {data: ["a", "b", "c"], index: [0, 1, 0, 2]}
+// returns:
+//   ["a", "b", "a", "c"]
+
+
+function unpackStrings(iconset) {
+  if (!iconset) {
+    return iconset;
+  }
+
+  if (typeof iconset.index === "undefined") {
+    return iconset;
+  }
+
+  iconset.data = (0, _util.asArray)(iconset.data);
+  iconset.index = (0, _util.asArray)(iconset.index);
+  return _jquery2["default"].map(iconset.index, function (e, i) {
+    return iconset.data[e];
+  });
+}
+
+function addMarkers(map, df, group, clusterOptions, clusterId, markerFunc) {
+  (function () {
+    var _this3 = this;
+
+    var clusterGroup = this.layerManager.getLayer("cluster", clusterId),
+        cluster = clusterOptions !== null;
+
+    if (cluster && !clusterGroup) {
+      clusterGroup = _leaflet2["default"].markerClusterGroup.layerSupport(clusterOptions);
+
+      if (clusterOptions.freezeAtZoom) {
+        var freezeAtZoom = clusterOptions.freezeAtZoom;
+        delete clusterOptions.freezeAtZoom;
+        clusterGroup.freezeAtZoom(freezeAtZoom);
+      }
+
+      clusterGroup.clusterLayerStore = new _clusterLayerStore2["default"](clusterGroup);
+    }
+
+    var extraInfo = cluster ? {
+      clusterId: clusterId
+    } : {};
+
+    var _loop2 = function _loop2(i) {
+      if (_jquery2["default"].isNumeric(df.get(i, "lat")) && _jquery2["default"].isNumeric(df.get(i, "lng"))) {
+        (function () {
+          var marker = markerFunc(df, i);
+          var thisId = df.get(i, "layerId");
+          var thisGroup = cluster ? null : df.get(i, "group");
+
+          if (cluster) {
+            clusterGroup.clusterLayerStore.add(marker, thisId);
+          } else {
+            this.layerManager.addLayer(marker, "marker", thisId, thisGroup, df.get(i, "ctGroup", true), df.get(i, "ctKey", true));
+          }
+
+          var popup = df.get(i, "popup");
+          var popupOptions = df.get(i, "popupOptions");
+
+          if (popup !== null) {
+            if (popupOptions !== null) {
+              marker.bindPopup(popup, popupOptions);
+            } else {
+              marker.bindPopup(popup);
+            }
+          }
+
+          var label = df.get(i, "label");
+          var labelOptions = df.get(i, "labelOptions");
+
+          if (label !== null) {
+            if (labelOptions !== null) {
+              if (labelOptions.permanent) {
+                marker.bindTooltip(label, labelOptions).openTooltip();
+              } else {
+                marker.bindTooltip(label, labelOptions);
+              }
+            } else {
+              marker.bindTooltip(label);
+            }
+          }
+
+          marker.on("click", mouseHandler(this.id, thisId, thisGroup, "marker_click", extraInfo), this);
+          marker.on("mouseover", mouseHandler(this.id, thisId, thisGroup, "marker_mouseover", extraInfo), this);
+          marker.on("mouseout", mouseHandler(this.id, thisId, thisGroup, "marker_mouseout", extraInfo), this);
+          marker.on("dragend", mouseHandler(this.id, thisId, thisGroup, "marker_dragend", extraInfo), this);
+        }).call(_this3);
+      }
+    };
+
+    for (var i = 0; i < df.nrow(); i++) {
+      _loop2(i);
+    }
+
+    if (cluster) {
+      this.layerManager.addLayer(clusterGroup, "cluster", clusterId, group);
+    }
+  }).call(map);
+}
+
+methods.addGenericMarkers = addMarkers;
+
+methods.addMarkers = function (lat, lng, icon, layerId, group, options, popup, popupOptions, clusterOptions, clusterId, label, labelOptions, crosstalkOptions) {
+  var icondf;
+  var getIcon;
+
+  if (icon) {
+    // Unpack icons
+    icon.iconUrl = unpackStrings(icon.iconUrl);
+    icon.iconRetinaUrl = unpackStrings(icon.iconRetinaUrl);
+    icon.shadowUrl = unpackStrings(icon.shadowUrl);
+    icon.shadowRetinaUrl = unpackStrings(icon.shadowRetinaUrl); // This cbinds the icon URLs and any other icon options; they're all
+    // present on the icon object.
+
+    icondf = new _dataframe2["default"]().cbind(icon); // Constructs an icon from a specified row of the icon dataframe.
+
+    getIcon = function getIcon(i) {
+      var opts = icondf.get(i);
+
+      if (!opts.iconUrl) {
+        return new _leaflet2["default"].Icon.Default();
+      } // Composite options (like points or sizes) are passed from R with each
+      // individual component as its own option. We need to combine them now
+      // into their composite form.
+
+
+      if (opts.iconWidth) {
+        opts.iconSize = [opts.iconWidth, opts.iconHeight];
+      }
+
+      if (opts.shadowWidth) {
+        opts.shadowSize = [opts.shadowWidth, opts.shadowHeight];
+      }
+
+      if (opts.iconAnchorX) {
+        opts.iconAnchor = [opts.iconAnchorX, opts.iconAnchorY];
+      }
+
+      if (opts.shadowAnchorX) {
+        opts.shadowAnchor = [opts.shadowAnchorX, opts.shadowAnchorY];
+      }
+
+      if (opts.popupAnchorX) {
+        opts.popupAnchor = [opts.popupAnchorX, opts.popupAnchorY];
+      }
+
+      return new _leaflet2["default"].Icon(opts);
+    };
+  }
+
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).cbind(options).cbind(crosstalkOptions || {});
+    if (icon) icondf.effectiveLength = df.nrow();
+    addMarkers(this, df, group, clusterOptions, clusterId, function (df, i) {
+      var options = df.get(i);
+      if (icon) options.icon = getIcon(i);
+      return _leaflet2["default"].marker([df.get(i, "lat"), df.get(i, "lng")], options);
+    });
+  }
+};
+
+methods.addAwesomeMarkers = function (lat, lng, icon, layerId, group, options, popup, popupOptions, clusterOptions, clusterId, label, labelOptions, crosstalkOptions) {
+  var icondf;
+  var getIcon;
+
+  if (icon) {
+    // This cbinds the icon URLs and any other icon options; they're all
+    // present on the icon object.
+    icondf = new _dataframe2["default"]().cbind(icon); // Constructs an icon from a specified row of the icon dataframe.
+
+    getIcon = function getIcon(i) {
+      var opts = icondf.get(i);
+
+      if (!opts) {
+        return new _leaflet2["default"].AwesomeMarkers.icon();
+      }
+
+      if (opts.squareMarker) {
+        opts.className = "awesome-marker awesome-marker-square";
+      }
+
+      return new _leaflet2["default"].AwesomeMarkers.icon(opts);
+    };
+  }
+
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).cbind(options).cbind(crosstalkOptions || {});
+    if (icon) icondf.effectiveLength = df.nrow();
+    addMarkers(this, df, group, clusterOptions, clusterId, function (df, i) {
+      var options = df.get(i);
+      if (icon) options.icon = getIcon(i);
+      return _leaflet2["default"].marker([df.get(i, "lat"), df.get(i, "lng")], options);
+    });
+  }
+};
+
+function addLayers(map, category, df, layerFunc) {
+  var _loop3 = function _loop3(i) {
+    (function () {
+      var layer = layerFunc(df, i);
+
+      if (!_jquery2["default"].isEmptyObject(layer)) {
+        var thisId = df.get(i, "layerId");
+        var thisGroup = df.get(i, "group");
+        this.layerManager.addLayer(layer, category, thisId, thisGroup, df.get(i, "ctGroup", true), df.get(i, "ctKey", true));
+
+        if (layer.bindPopup) {
+          var popup = df.get(i, "popup");
+          var popupOptions = df.get(i, "popupOptions");
+
+          if (popup !== null) {
+            if (popupOptions !== null) {
+              layer.bindPopup(popup, popupOptions);
+            } else {
+              layer.bindPopup(popup);
+            }
+          }
+        }
+
+        if (layer.bindTooltip) {
+          var label = df.get(i, "label");
+          var labelOptions = df.get(i, "labelOptions");
+
+          if (label !== null) {
+            if (labelOptions !== null) {
+              layer.bindTooltip(label, labelOptions);
+            } else {
+              layer.bindTooltip(label);
+            }
+          }
+        }
+
+        layer.on("click", mouseHandler(this.id, thisId, thisGroup, category + "_click"), this);
+        layer.on("mouseover", mouseHandler(this.id, thisId, thisGroup, category + "_mouseover"), this);
+        layer.on("mouseout", mouseHandler(this.id, thisId, thisGroup, category + "_mouseout"), this);
+        var highlightStyle = df.get(i, "highlightOptions");
+
+        if (!_jquery2["default"].isEmptyObject(highlightStyle)) {
+          var defaultStyle = {};
+
+          _jquery2["default"].each(highlightStyle, function (k, v) {
+            if (k != "bringToFront" && k != "sendToBack") {
+              if (df.get(i, k)) {
+                defaultStyle[k] = df.get(i, k);
+              }
+            }
+          });
+
+          layer.on("mouseover", function (e) {
+            this.setStyle(highlightStyle);
+
+            if (highlightStyle.bringToFront) {
+              this.bringToFront();
+            }
+          });
+          layer.on("mouseout", function (e) {
+            this.setStyle(defaultStyle);
+
+            if (highlightStyle.sendToBack) {
+              this.bringToBack();
+            }
+          });
+        }
+      }
+    }).call(map);
+  };
+
+  for (var i = 0; i < df.nrow(); i++) {
+    _loop3(i);
+  }
+}
+
+methods.addGenericLayers = addLayers;
+
+methods.addCircles = function (lat, lng, radius, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions, crosstalkOptions) {
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("radius", radius).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options).cbind(crosstalkOptions || {});
+    addLayers(this, "shape", df, function (df, i) {
+      if (_jquery2["default"].isNumeric(df.get(i, "lat")) && _jquery2["default"].isNumeric(df.get(i, "lng")) && _jquery2["default"].isNumeric(df.get(i, "radius"))) {
+        return _leaflet2["default"].circle([df.get(i, "lat"), df.get(i, "lng")], df.get(i, "radius"), df.get(i));
+      } else {
+        return null;
+      }
+    });
+  }
+};
+
+methods.addCircleMarkers = function (lat, lng, radius, layerId, group, options, clusterOptions, clusterId, popup, popupOptions, label, labelOptions, crosstalkOptions) {
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("radius", radius).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).cbind(crosstalkOptions || {}).cbind(options);
+    addMarkers(this, df, group, clusterOptions, clusterId, function (df, i) {
+      return _leaflet2["default"].circleMarker([df.get(i, "lat"), df.get(i, "lng")], df.get(i));
+    });
+  }
+};
+/*
+ * @param lat Array of arrays of latitude coordinates for polylines
+ * @param lng Array of arrays of longitude coordinates for polylines
+ */
+
+
+methods.addPolylines = function (polygons, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions) {
+  if (polygons.length > 0) {
+    var df = new _dataframe2["default"]().col("shapes", polygons).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options);
+    addLayers(this, "shape", df, function (df, i) {
+      var shapes = df.get(i, "shapes");
+      shapes = shapes.map(function (shape) {
+        return _htmlwidgets2["default"].dataframeToD3(shape[0]);
+      });
+
+      if (shapes.length > 1) {
+        return _leaflet2["default"].polyline(shapes, df.get(i));
+      } else {
+        return _leaflet2["default"].polyline(shapes[0], df.get(i));
+      }
+    });
+  }
+};
+
+methods.removeMarker = function (layerId) {
+  this.layerManager.removeLayer("marker", layerId);
+};
+
+methods.clearMarkers = function () {
+  this.layerManager.clearLayers("marker");
+};
+
+methods.removeMarkerCluster = function (layerId) {
+  this.layerManager.removeLayer("cluster", layerId);
+};
+
+methods.removeMarkerFromCluster = function (layerId, clusterId) {
+  var cluster = this.layerManager.getLayer("cluster", clusterId);
+  if (!cluster) return;
+  cluster.clusterLayerStore.remove(layerId);
+};
+
+methods.clearMarkerClusters = function () {
+  this.layerManager.clearLayers("cluster");
+};
+
+methods.removeShape = function (layerId) {
+  this.layerManager.removeLayer("shape", layerId);
+};
+
+methods.clearShapes = function () {
+  this.layerManager.clearLayers("shape");
+};
+
+methods.addRectangles = function (lat1, lng1, lat2, lng2, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions) {
+  var df = new _dataframe2["default"]().col("lat1", lat1).col("lng1", lng1).col("lat2", lat2).col("lng2", lng2).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options);
+  addLayers(this, "shape", df, function (df, i) {
+    if (_jquery2["default"].isNumeric(df.get(i, "lat1")) && _jquery2["default"].isNumeric(df.get(i, "lng1")) && _jquery2["default"].isNumeric(df.get(i, "lat2")) && _jquery2["default"].isNumeric(df.get(i, "lng2"))) {
+      return _leaflet2["default"].rectangle([[df.get(i, "lat1"), df.get(i, "lng1")], [df.get(i, "lat2"), df.get(i, "lng2")]], df.get(i));
+    } else {
+      return null;
+    }
+  });
+};
+/*
+ * @param lat Array of arrays of latitude coordinates for polygons
+ * @param lng Array of arrays of longitude coordinates for polygons
+ */
+
+
+methods.addPolygons = function (polygons, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions) {
+  if (polygons.length > 0) {
+    var df = new _dataframe2["default"]().col("shapes", polygons).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options);
+    addLayers(this, "shape", df, function (df, i) {
+      // This code used to use L.multiPolygon, but that caused
+      // double-click on a multipolygon to fail to zoom in on the
+      // map. Surprisingly, putting all the rings in a single
+      // polygon seems to still work; complicated multipolygons
+      // are still rendered correctly.
+      var shapes = df.get(i, "shapes").map(function (polygon) {
+        return polygon.map(_htmlwidgets2["default"].dataframeToD3);
+      }).reduce(function (acc, val) {
+        return acc.concat(val);
+      }, []);
+      return _leaflet2["default"].polygon(shapes, df.get(i));
+    });
+  }
+};
+
+methods.addGeoJSON = function (data, layerId, group, style) {
+  // This time, self is actually needed because the callbacks below need
+  // to access both the inner and outer senses of "this"
+  var self = this;
+
+  if (typeof data === "string") {
+    data = JSON.parse(data);
+  }
+
+  var globalStyle = _jquery2["default"].extend({}, style, data.style || {});
+
+  var gjlayer = _leaflet2["default"].geoJson(data, {
+    style: function style(feature) {
+      if (feature.style || feature.properties.style) {
+        return _jquery2["default"].extend({}, globalStyle, feature.style, feature.properties.style);
+      } else {
+        return globalStyle;
+      }
+    },
+    onEachFeature: function onEachFeature(feature, layer) {
+      var extraInfo = {
+        featureId: feature.id,
+        properties: feature.properties
+      };
+      var popup = feature.properties ? feature.properties.popup : null;
+      if (typeof popup !== "undefined" && popup !== null) layer.bindPopup(popup);
+      layer.on("click", mouseHandler(self.id, layerId, group, "geojson_click", extraInfo), this);
+      layer.on("mouseover", mouseHandler(self.id, layerId, group, "geojson_mouseover", extraInfo), this);
+      layer.on("mouseout", mouseHandler(self.id, layerId, group, "geojson_mouseout", extraInfo), this);
+    }
+  });
+
+  this.layerManager.addLayer(gjlayer, "geojson", layerId, group);
+};
+
+methods.removeGeoJSON = function (layerId) {
+  this.layerManager.removeLayer("geojson", layerId);
+};
+
+methods.clearGeoJSON = function () {
+  this.layerManager.clearLayers("geojson");
+};
+
+methods.addTopoJSON = function (data, layerId, group, style) {
+  // This time, self is actually needed because the callbacks below need
+  // to access both the inner and outer senses of "this"
+  var self = this;
+
+  if (typeof data === "string") {
+    data = JSON.parse(data);
+  }
+
+  var globalStyle = _jquery2["default"].extend({}, style, data.style || {});
+
+  var gjlayer = _leaflet2["default"].geoJson(null, {
+    style: function style(feature) {
+      if (feature.style || feature.properties.style) {
+        return _jquery2["default"].extend({}, globalStyle, feature.style, feature.properties.style);
+      } else {
+        return globalStyle;
+      }
+    },
+    onEachFeature: function onEachFeature(feature, layer) {
+      var extraInfo = {
+        featureId: feature.id,
+        properties: feature.properties
+      };
+      var popup = feature.properties.popup;
+      if (typeof popup !== "undefined" && popup !== null) layer.bindPopup(popup);
+      layer.on("click", mouseHandler(self.id, layerId, group, "topojson_click", extraInfo), this);
+      layer.on("mouseover", mouseHandler(self.id, layerId, group, "topojson_mouseover", extraInfo), this);
+      layer.on("mouseout", mouseHandler(self.id, layerId, group, "topojson_mouseout", extraInfo), this);
+    }
+  });
+
+  global.omnivore.topojson.parse(data, null, gjlayer);
+  this.layerManager.addLayer(gjlayer, "topojson", layerId, group);
+};
+
+methods.removeTopoJSON = function (layerId) {
+  this.layerManager.removeLayer("topojson", layerId);
+};
+
+methods.clearTopoJSON = function () {
+  this.layerManager.clearLayers("topojson");
+};
+
+methods.addControl = function (html, position, layerId, classes) {
+  function onAdd(map) {
+    var div = _leaflet2["default"].DomUtil.create("div", classes);
+
+    if (typeof layerId !== "undefined" && layerId !== null) {
+      div.setAttribute("id", layerId);
+    }
+
+    this._div = div; // It's possible for window.Shiny to be true but Shiny.initializeInputs to
+    // not be, when a static leaflet widget is included as part of the shiny
+    // UI directly (not through leafletOutput or uiOutput). In this case we
+    // don't do the normal Shiny stuff as that will all happen when Shiny
+    // itself loads and binds the entire doc.
+
+    if (window.Shiny && _shiny2["default"].initializeInputs) {
+      _shiny2["default"].renderHtml(html, this._div);
+
+      _shiny2["default"].initializeInputs(this._div);
+
+      _shiny2["default"].bindAll(this._div);
+    } else {
+      this._div.innerHTML = html;
+    }
+
+    return this._div;
+  }
+
+  function onRemove(map) {
+    if (window.Shiny && _shiny2["default"].unbindAll) {
+      _shiny2["default"].unbindAll(this._div);
+    }
+  }
+
+  var Control = _leaflet2["default"].Control.extend({
+    options: {
+      position: position
+    },
+    onAdd: onAdd,
+    onRemove: onRemove
+  });
+
+  this.controls.add(new Control(), layerId, html);
+};
+
+methods.addCustomControl = function (control, layerId) {
+  this.controls.add(control, layerId);
+};
+
+methods.removeControl = function (layerId) {
+  this.controls.remove(layerId);
+};
+
+methods.getControl = function (layerId) {
+  this.controls.get(layerId);
+};
+
+methods.clearControls = function () {
+  this.controls.clear();
+};
+
+methods.addLegend = function (options) {
+  var legend = _leaflet2["default"].control({
+    position: options.position
+  });
+
+  var gradSpan;
+
+  legend.onAdd = function (map) {
+    var div = _leaflet2["default"].DomUtil.create("div", options.className),
+        colors = options.colors,
+        labels = options.labels,
+        legendHTML = "";
+
+    if (options.type === "numeric") {
+      // # Formatting constants.
+      var singleBinHeight = 20; // The distance between tick marks, in px
+
+      var vMargin = 8; // If 1st tick mark starts at top of gradient, how
+      // many extra px are needed for the top half of the
+      // 1st label? (ditto for last tick mark/label)
+
+      var tickWidth = 4; // How wide should tick marks be, in px?
+
+      var labelPadding = 6; // How much distance to reserve for tick mark?
+      // (Must be >= tickWidth)
+      // # Derived formatting parameters.
+      // What's the height of a single bin, in percentage (of gradient height)?
+      // It might not just be 1/(n-1), if the gradient extends past the tick
+      // marks (which can be the case for pretty cut points).
+
+      var singleBinPct = (options.extra.p_n - options.extra.p_1) / (labels.length - 1); // Each bin is `singleBinHeight` high. How tall is the gradient?
+
+      var totalHeight = 1 / singleBinPct * singleBinHeight + 1; // How far should the first tick be shifted down, relative to the top
+      // of the gradient?
+
+      var tickOffset = singleBinHeight / singleBinPct * options.extra.p_1;
+      gradSpan = (0, _jquery2["default"])("<span/>").css({
+        "background": "linear-gradient(" + colors + ")",
+        "opacity": options.opacity,
+        "height": totalHeight + "px",
+        "width": "18px",
+        "display": "block",
+        "margin-top": vMargin + "px"
+      });
+      var leftDiv = (0, _jquery2["default"])("<div/>").css("float", "left"),
+          rightDiv = (0, _jquery2["default"])("<div/>").css("float", "left");
+      leftDiv.append(gradSpan);
+      (0, _jquery2["default"])(div).append(leftDiv).append(rightDiv).append((0, _jquery2["default"])("<br>")); // Have to attach the div to the body at this early point, so that the
+      // svg text getComputedTextLength() actually works, below.
+
+      document.body.appendChild(div);
+      var ns = "http://www.w3.org/2000/svg";
+      var svg = document.createElementNS(ns, "svg");
+      rightDiv.append(svg);
+      var g = document.createElementNS(ns, "g");
+      (0, _jquery2["default"])(g).attr("transform", "translate(0, " + vMargin + ")");
+      svg.appendChild(g); // max label width needed to set width of svg, and right-justify text
+
+      var maxLblWidth = 0; // Create tick marks and labels
+
+      _jquery2["default"].each(labels, function (i, label) {
+        var y = tickOffset + i * singleBinHeight + 0.5;
+        var thisLabel = document.createElementNS(ns, "text");
+        (0, _jquery2["default"])(thisLabel).text(labels[i]).attr("y", y).attr("dx", labelPadding).attr("dy", "0.5ex");
+        g.appendChild(thisLabel);
+        maxLblWidth = Math.max(maxLblWidth, thisLabel.getComputedTextLength());
+        var thisTick = document.createElementNS(ns, "line");
+        (0, _jquery2["default"])(thisTick).attr("x1", 0).attr("x2", tickWidth).attr("y1", y).attr("y2", y).attr("stroke-width", 1);
+        g.appendChild(thisTick);
+      }); // Now that we know the max label width, we can right-justify
+
+
+      (0, _jquery2["default"])(svg).find("text").attr("dx", labelPadding + maxLblWidth).attr("text-anchor", "end"); // Final size for <svg>
+
+      (0, _jquery2["default"])(svg).css({
+        width: maxLblWidth + labelPadding + "px",
+        height: totalHeight + vMargin * 2 + "px"
+      });
+
+      if (options.na_color && _jquery2["default"].inArray(options.na_label, labels) < 0) {
+        (0, _jquery2["default"])(div).append("<div><i style=\"" + "background:" + options.na_color + ";opacity:" + options.opacity + ";margin-right:" + labelPadding + "px" + ";\"></i>" + options.na_label + "</div>");
+      }
+    } else {
+      if (options.na_color && _jquery2["default"].inArray(options.na_label, labels) < 0) {
+        colors.push(options.na_color);
+        labels.push(options.na_label);
+      }
+
+      for (var i = 0; i < colors.length; i++) {
+        legendHTML += "<i style=\"background:" + colors[i] + ";opacity:" + options.opacity + "\"></i> " + labels[i] + "<br>";
+      }
+
+      div.innerHTML = legendHTML;
+    }
+
+    if (options.title) (0, _jquery2["default"])(div).prepend("<div style=\"margin-bottom:3px\"><strong>" + options.title + "</strong></div>");
+    return div;
+  };
+
+  if (options.group) {
+    // Auto generate a layerID if not provided
+    if (!options.layerId) {
+      options.layerId = _leaflet2["default"].Util.stamp(legend);
+    }
+
+    var map = this;
+    map.on("overlayadd", function (e) {
+      if (e.name === options.group) {
+        map.controls.add(legend, options.layerId);
+      }
+    });
+    map.on("overlayremove", function (e) {
+      if (e.name === options.group) {
+        map.controls.remove(options.layerId);
+      }
+    });
+    map.on("groupadd", function (e) {
+      if (e.name === options.group) {
+        map.controls.add(legend, options.layerId);
+      }
+    });
+    map.on("groupremove", function (e) {
+      if (e.name === options.group) {
+        map.controls.remove(options.layerId);
+      }
+    });
+  }
+
+  this.controls.add(legend, options.layerId);
+};
+
+methods.addLayersControl = function (baseGroups, overlayGroups, options) {
+  var _this4 = this;
+
+  // Only allow one layers control at a time
+  methods.removeLayersControl.call(this);
+  var firstLayer = true;
+  var base = {};
+
+  _jquery2["default"].each((0, _util.asArray)(baseGroups), function (i, g) {
+    var layer = _this4.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      base[g] = layer; // Check if >1 base layers are visible; if so, hide all but the first one
+
+      if (_this4.hasLayer(layer)) {
+        if (firstLayer) {
+          firstLayer = false;
+        } else {
+          _this4.removeLayer(layer);
+        }
+      }
+    }
+  });
+
+  var overlay = {};
+
+  _jquery2["default"].each((0, _util.asArray)(overlayGroups), function (i, g) {
+    var layer = _this4.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      overlay[g] = layer;
+    }
+  });
+
+  this.currentLayersControl = _leaflet2["default"].control.layers(base, overlay, options);
+  this.addControl(this.currentLayersControl);
+};
+
+methods.removeLayersControl = function () {
+  if (this.currentLayersControl) {
+    this.removeControl(this.currentLayersControl);
+    this.currentLayersControl = null;
+  }
+};
+
+methods.addScaleBar = function (options) {
+  // Only allow one scale bar at a time
+  methods.removeScaleBar.call(this);
+
+  var scaleBar = _leaflet2["default"].control.scale(options).addTo(this);
+
+  this.currentScaleBar = scaleBar;
+};
+
+methods.removeScaleBar = function () {
+  if (this.currentScaleBar) {
+    this.currentScaleBar.remove();
+    this.currentScaleBar = null;
+  }
+};
+
+methods.hideGroup = function (group) {
+  var _this5 = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, g) {
+    var layer = _this5.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      _this5.removeLayer(layer);
+    }
+  });
+};
+
+methods.showGroup = function (group) {
+  var _this6 = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, g) {
+    var layer = _this6.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      _this6.addLayer(layer);
+    }
+  });
+};
+
+function setupShowHideGroupsOnZoom(map) {
+  if (map.leafletr._hasInitializedShowHideGroups) {
+    return;
+  }
+
+  map.leafletr._hasInitializedShowHideGroups = true;
+
+  function setVisibility(layer, visible, group) {
+    if (visible !== map.hasLayer(layer)) {
+      if (visible) {
+        map.addLayer(layer);
+        map.fire("groupadd", {
+          "name": group,
+          "layer": layer
+        });
+      } else {
+        map.removeLayer(layer);
+        map.fire("groupremove", {
+          "name": group,
+          "layer": layer
+        });
+      }
+    }
+  }
+
+  function showHideGroupsOnZoom() {
+    if (!map.layerManager) return;
+    var zoom = map.getZoom();
+    map.layerManager.getAllGroupNames().forEach(function (group) {
+      var layer = map.layerManager.getLayerGroup(group, false);
+
+      if (layer && typeof layer.zoomLevels !== "undefined") {
+        setVisibility(layer, layer.zoomLevels === true || layer.zoomLevels.indexOf(zoom) >= 0, group);
+      }
+    });
+  }
+
+  map.showHideGroupsOnZoom = showHideGroupsOnZoom;
+  map.on("zoomend", showHideGroupsOnZoom);
+}
+
+methods.setGroupOptions = function (group, options) {
+  var _this7 = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, g) {
+    var layer = _this7.layerManager.getLayerGroup(g, true); // This slightly tortured check is because 0 is a valid value for zoomLevels
+
+
+    if (typeof options.zoomLevels !== "undefined" && options.zoomLevels !== null) {
+      layer.zoomLevels = (0, _util.asArray)(options.zoomLevels);
+    }
+  });
+
+  setupShowHideGroupsOnZoom(this);
+  this.showHideGroupsOnZoom();
+};
+
+methods.addRasterImage = function (uri, bounds, opacity, attribution, layerId, group) {
+  // uri is a data URI containing an image. We want to paint this image as a
+  // layer at (top-left) bounds[0] to (bottom-right) bounds[1].
+  // We can't simply use ImageOverlay, as it uses bilinear scaling which looks
+  // awful as you zoom in (and sometimes shifts positions or disappears).
+  // Instead, we'll use a TileLayer.Canvas to draw pieces of the image.
+  // First, some helper functions.
+  // degree2tile converts latitude, longitude, and zoom to x and y tile
+  // numbers. The tile numbers returned can be non-integral, as there's no
+  // reason to expect that the lat/lng inputs are exactly on the border of two
+  // tiles.
+  //
+  // We'll use this to convert the bounds we got from the server, into coords
+  // in tile-space at a given zoom level. Note that once we do the conversion,
+  // we don't to do any more trigonometry to convert between pixel coordinates
+  // and tile coordinates; the source image pixel coords, destination canvas
+  // pixel coords, and tile coords all can be scaled linearly.
+  function degree2tile(lat, lng, zoom) {
+    // See http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames
+    var latRad = lat * Math.PI / 180;
+    var n = Math.pow(2, zoom);
+    var x = (lng + 180) / 360 * n;
+    var y = (1 - Math.log(Math.tan(latRad) + 1 / Math.cos(latRad)) / Math.PI) / 2 * n;
+    return {
+      x: x,
+      y: y
+    };
+  } // Given a range [from,to) and either one or two numbers, returns true if
+  // there is any overlap between [x,x1) and the range--or if x1 is omitted,
+  // then returns true if x is within [from,to).
+
+
+  function overlap(from, to, x,
+  /* optional */
+  x1) {
+    if (arguments.length == 3) x1 = x;
+    return x < to && x1 >= from;
+  }
+
+  function getCanvasSmoothingProperty(ctx) {
+    var candidates = ["imageSmoothingEnabled", "mozImageSmoothingEnabled", "webkitImageSmoothingEnabled", "msImageSmoothingEnabled"];
+
+    for (var i = 0; i < candidates.length; i++) {
+      if (typeof ctx[candidates[i]] !== "undefined") {
+        return candidates[i];
+      }
+    }
+
+    return null;
+  } // Our general strategy is to:
+  // 1. Load the data URI in an Image() object, so we can get its pixel
+  //    dimensions and the underlying image data. (We could have done this
+  //    by not encoding as PNG at all but just send an array of RGBA values
+  //    from the server, but that would inflate the JSON too much.)
+  // 2. Create a hidden canvas that we use just to extract the image data
+  //    from the Image (using Context2D.getImageData()).
+  // 3. Create a TileLayer.Canvas and add it to the map.
+  // We want to synchronously create and attach the TileLayer.Canvas (so an
+  // immediate call to clearRasters() will be respected, for example), but
+  // Image loads its data asynchronously. Fortunately we can resolve this
+  // by putting TileLayer.Canvas into async mode, which will let us create
+  // and attach the layer but have it wait until the image is loaded before
+  // it actually draws anything.
+  // These are the variables that we will populate once the image is loaded.
+
+
+  var imgData = null; // 1d row-major array, four [0-255] integers per pixel
+
+  var imgDataMipMapper = null;
+  var w = null; // image width in pixels
+
+  var h = null; // image height in pixels
+  // We'll use this array to store callbacks that need to be invoked once
+  // imgData, w, and h have been resolved.
+
+  var imgDataCallbacks = []; // Consumers of imgData, w, and h can call this to be notified when data
+  // is available.
+
+  function getImageData(callback) {
+    if (imgData != null) {
+      // Must not invoke the callback immediately; it's too confusing and
+      // fragile to have a function invoke the callback *either* immediately
+      // or in the future. Better to be consistent here.
+      setTimeout(function () {
+        callback(imgData, w, h, imgDataMipMapper);
+      }, 0);
+    } else {
+      imgDataCallbacks.push(callback);
+    }
+  }
+
+  var img = new Image();
+
+  img.onload = function () {
+    // Save size
+    w = img.width;
+    h = img.height; // Create a dummy canvas to extract the image data
+
+    var imgDataCanvas = document.createElement("canvas");
+    imgDataCanvas.width = w;
+    imgDataCanvas.height = h;
+    imgDataCanvas.style.display = "none";
+    document.body.appendChild(imgDataCanvas);
+    var imgDataCtx = imgDataCanvas.getContext("2d");
+    imgDataCtx.drawImage(img, 0, 0); // Save the image data.
+
+    imgData = imgDataCtx.getImageData(0, 0, w, h).data;
+    imgDataMipMapper = new _mipmapper2["default"](img); // Done with the canvas, remove it from the page so it can be gc'd.
+
+    document.body.removeChild(imgDataCanvas); // Alert any getImageData callers who are waiting.
+
+    for (var i = 0; i < imgDataCallbacks.length; i++) {
+      imgDataCallbacks[i](imgData, w, h, imgDataMipMapper);
+    }
+
+    imgDataCallbacks = [];
+  };
+
+  img.src = uri;
+
+  var canvasTiles = _leaflet2["default"].gridLayer({
+    opacity: opacity,
+    attribution: attribution,
+    detectRetina: true,
+    async: true
+  }); // NOTE: The done() function MUST NOT be invoked until after the current
+  // tick; done() looks in Leaflet's tile cache for the current tile, and
+  // since it's still being constructed, it won't be found.
+
+
+  canvasTiles.createTile = function (tilePoint, done) {
+    var zoom = tilePoint.z;
+
+    var canvas = _leaflet2["default"].DomUtil.create("canvas");
+
+    var error; // setup tile width and height according to the options
+
+    var size = this.getTileSize();
+    canvas.width = size.x;
+    canvas.height = size.y;
+    getImageData(function (imgData, w, h, mipmapper) {
+      try {
+        // The Context2D we'll being drawing onto. It's always 256x256.
+        var ctx = canvas.getContext("2d"); // Convert our image data's top-left and bottom-right locations into
+        // x/y tile coordinates. This is essentially doing a spherical mercator
+        // projection, then multiplying by 2^zoom.
+
+        var topLeft = degree2tile(bounds[0][0], bounds[0][1], zoom);
+        var bottomRight = degree2tile(bounds[1][0], bounds[1][1], zoom); // The size of the image in x/y tile coordinates.
+
+        var extent = {
+          x: bottomRight.x - topLeft.x,
+          y: bottomRight.y - topLeft.y
+        }; // Short circuit if tile is totally disjoint from image.
+
+        if (!overlap(tilePoint.x, tilePoint.x + 1, topLeft.x, bottomRight.x)) return;
+        if (!overlap(tilePoint.y, tilePoint.y + 1, topLeft.y, bottomRight.y)) return; // The linear resolution of the tile we're drawing is always 256px per tile unit.
+        // If the linear resolution (in either direction) of the image is less than 256px
+        // per tile unit, then use nearest neighbor; otherwise, use the canvas's built-in
+        // scaling.
+
+        var imgRes = {
+          x: w / extent.x,
+          y: h / extent.y
+        }; // We can do the actual drawing in one of three ways:
+        // - Call drawImage(). This is easy and fast, and results in smooth
+        //   interpolation (bilinear?). This is what we want when we are
+        //   reducing the image from its native size.
+        // - Call drawImage() with imageSmoothingEnabled=false. This is easy
+        //   and fast and gives us nearest-neighbor interpolation, which is what
+        //   we want when enlarging the image. However, it's unsupported on many
+        //   browsers (including QtWebkit).
+        // - Do a manual nearest-neighbor interpolation. This is what we'll fall
+        //   back to when enlarging, and imageSmoothingEnabled isn't supported.
+        //   In theory it's slower, but still pretty fast on my machine, and the
+        //   results look the same AFAICT.
+        // Is imageSmoothingEnabled supported? If so, we can let canvas do
+        // nearest-neighbor interpolation for us.
+
+        var smoothingProperty = getCanvasSmoothingProperty(ctx);
+
+        if (smoothingProperty || imgRes.x >= 256 && imgRes.y >= 256) {
+          // Use built-in scaling
+          // Turn off anti-aliasing if necessary
+          if (smoothingProperty) {
+            ctx[smoothingProperty] = imgRes.x >= 256 && imgRes.y >= 256;
+          } // Don't necessarily draw with the full-size image; if we're
+          // downscaling, use the mipmapper to get a pre-downscaled image
+          // (see comments on Mipmapper class for why this matters).
+
+
+          mipmapper.getBySize(extent.x * 256, extent.y * 256, function (mip) {
+            // It's possible that the image will go off the edge of the canvas--
+            // that's OK, the canvas should clip appropriately.
+            ctx.drawImage(mip, // Convert abs tile coords to rel tile coords, then *256 to convert
+            // to rel pixel coords
+            (topLeft.x - tilePoint.x) * 256, (topLeft.y - tilePoint.y) * 256, // Always draw the whole thing and let canvas clip; so we can just
+            // convert from size in tile coords straight to pixels
+            extent.x * 256, extent.y * 256);
+          });
+        } else {
+          // Use manual nearest-neighbor interpolation
+          // Calculate the source image pixel coordinates that correspond with
+          // the top-left and bottom-right of this tile. (If the source image
+          // only partially overlaps the tile, we use max/min to limit the
+          // sourceStart/End to only reflect the overlapping portion.)
+          var sourceStart = {
+            x: Math.max(0, Math.floor((tilePoint.x - topLeft.x) * imgRes.x)),
+            y: Math.max(0, Math.floor((tilePoint.y - topLeft.y) * imgRes.y))
+          };
+          var sourceEnd = {
+            x: Math.min(w, Math.ceil((tilePoint.x + 1 - topLeft.x) * imgRes.x)),
+            y: Math.min(h, Math.ceil((tilePoint.y + 1 - topLeft.y) * imgRes.y))
+          }; // The size, in dest pixels, that each source pixel should occupy.
+          // This might be greater or less than 1 (e.g. if x and y resolution
+          // are very different).
+
+          var pixelSize = {
+            x: 256 / imgRes.x,
+            y: 256 / imgRes.y
+          }; // For each pixel in the source image that overlaps the tile...
+
+          for (var row = sourceStart.y; row < sourceEnd.y; row++) {
+            for (var col = sourceStart.x; col < sourceEnd.x; col++) {
+              // ...extract the pixel data...
+              var i = (row * w + col) * 4;
+              var r = imgData[i];
+              var g = imgData[i + 1];
+              var b = imgData[i + 2];
+              var a = imgData[i + 3];
+              ctx.fillStyle = "rgba(" + [r, g, b, a / 255].join(",") + ")"; // ...calculate the corresponding pixel coord in the dest image
+              // where it should be drawn...
+
+              var pixelPos = {
+                x: (col / imgRes.x + topLeft.x - tilePoint.x) * 256,
+                y: (row / imgRes.y + topLeft.y - tilePoint.y) * 256
+              }; // ...and draw a rectangle there.
+
+              ctx.fillRect(Math.round(pixelPos.x), Math.round(pixelPos.y), // Looks crazy, but this is necessary to prevent rounding from
+              // causing overlap between this rect and its neighbors. The
+              // minuend is the location of the next pixel, while the
+              // subtrahend is the position of the current pixel (to turn an
+              // absolute coordinate to a width/height). Yes, I had to look
+              // up minuend and subtrahend.
+              Math.round(pixelPos.x + pixelSize.x) - Math.round(pixelPos.x), Math.round(pixelPos.y + pixelSize.y) - Math.round(pixelPos.y));
+            }
+          }
+        }
+      } catch (e) {
+        error = e;
+      } finally {
+        done(error, canvas);
+      }
+    });
+    return canvas;
+  };
+
+  this.layerManager.addLayer(canvasTiles, "image", layerId, group);
+};
+
+methods.removeImage = function (layerId) {
+  this.layerManager.removeLayer("image", layerId);
+};
+
+methods.clearImages = function () {
+  this.layerManager.clearLayers("image");
+};
+
+methods.addMeasure = function (options) {
+  // if a measureControl already exists, then remove it and
+  //   replace with a new one
+  methods.removeMeasure.call(this);
+  this.measureControl = _leaflet2["default"].control.measure(options);
+  this.addControl(this.measureControl);
+};
+
+methods.removeMeasure = function () {
+  if (this.measureControl) {
+    this.removeControl(this.measureControl);
+    this.measureControl = null;
+  }
+};
+
+methods.addSelect = function (ctGroup) {
+  var _this8 = this;
+
+  methods.removeSelect.call(this);
+  this._selectButton = _leaflet2["default"].easyButton({
+    states: [{
+      stateName: "select-inactive",
+      icon: "ion-qr-scanner",
+      title: "Make a selection",
+      onClick: function onClick(btn, map) {
+        btn.state("select-active");
+        _this8._locationFilter = new _leaflet2["default"].LocationFilter2();
+
+        if (ctGroup) {
+          var selectionHandle = new global.crosstalk.SelectionHandle(ctGroup);
+          selectionHandle.on("change", function (e) {
+            if (e.sender !== selectionHandle) {
+              if (_this8._locationFilter) {
+                _this8._locationFilter.disable();
+
+                btn.state("select-inactive");
+              }
+            }
+          });
+
+          var handler = function handler(e) {
+            _this8.layerManager.brush(_this8._locationFilter.getBounds(), {
+              sender: selectionHandle
+            });
+          };
+
+          _this8._locationFilter.on("enabled", handler);
+
+          _this8._locationFilter.on("change", handler);
+
+          _this8._locationFilter.on("disabled", function () {
+            selectionHandle.close();
+            _this8._locationFilter = null;
+          });
+        }
+
+        _this8._locationFilter.addTo(map);
+      }
+    }, {
+      stateName: "select-active",
+      icon: "ion-close-round",
+      title: "Dismiss selection",
+      onClick: function onClick(btn, map) {
+        btn.state("select-inactive");
+
+        _this8._locationFilter.disable(); // If explicitly dismissed, clear the crosstalk selections
+
+
+        _this8.layerManager.unbrush();
+      }
+    }]
+  });
+
+  this._selectButton.addTo(this);
+};
+
+methods.removeSelect = function () {
+  if (this._locationFilter) {
+    this._locationFilter.disable();
+  }
+
+  if (this._selectButton) {
+    this.removeControl(this._selectButton);
+    this._selectButton = null;
+  }
+};
+
+methods.createMapPane = function (name, zIndex) {
+  this.createPane(name);
+  this.getPane(name).style.zIndex = zIndex;
+};
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./cluster-layer-store":1,"./crs_utils":3,"./dataframe":4,"./global/htmlwidgets":8,"./global/jquery":9,"./global/leaflet":10,"./global/shiny":12,"./mipmapper":16,"./util":17}],16:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+// This class simulates a mipmap, which shrinks images by powers of two. This
+// stepwise reduction results in "pixel-perfect downscaling" (where every
+// pixel of the original image has some contribution to the downscaled image)
+// as opposed to a single-step downscaling which will discard a lot of data
+// (and with sparse images at small scales can give very surprising results).
+var Mipmapper = /*#__PURE__*/function () {
+  function Mipmapper(img) {
+    _classCallCheck(this, Mipmapper);
+
+    this._layers = [img];
+  } // The various functions on this class take a callback function BUT MAY OR MAY
+  // NOT actually behave asynchronously.
+
+
+  _createClass(Mipmapper, [{
+    key: "getBySize",
+    value: function getBySize(desiredWidth, desiredHeight, callback) {
+      var _this = this;
+
+      var i = 0;
+      var lastImg = this._layers[0];
+
+      var testNext = function testNext() {
+        _this.getByIndex(i, function (img) {
+          // If current image is invalid (i.e. too small to be rendered) or
+          // it's smaller than what we wanted, return the last known good image.
+          if (!img || img.width < desiredWidth || img.height < desiredHeight) {
+            callback(lastImg);
+            return;
+          } else {
+            lastImg = img;
+            i++;
+            testNext();
+            return;
+          }
+        });
+      };
+
+      testNext();
+    }
+  }, {
+    key: "getByIndex",
+    value: function getByIndex(i, callback) {
+      var _this2 = this;
+
+      if (this._layers[i]) {
+        callback(this._layers[i]);
+        return;
+      }
+
+      this.getByIndex(i - 1, function (prevImg) {
+        if (!prevImg) {
+          // prevImg could not be calculated (too small, possibly)
+          callback(null);
+          return;
+        }
+
+        if (prevImg.width < 2 || prevImg.height < 2) {
+          // Can't reduce this image any further
+          callback(null);
+          return;
+        } // If reduce ever becomes truly asynchronous, we should stuff a promise or
+        // something into this._layers[i] before calling this.reduce(), to prevent
+        // redundant reduce operations from happening.
+
+
+        _this2.reduce(prevImg, function (reducedImg) {
+          _this2._layers[i] = reducedImg;
+          callback(reducedImg);
+          return;
+        });
+      });
+    }
+  }, {
+    key: "reduce",
+    value: function reduce(img, callback) {
+      var imgDataCanvas = document.createElement("canvas");
+      imgDataCanvas.width = Math.ceil(img.width / 2);
+      imgDataCanvas.height = Math.ceil(img.height / 2);
+      imgDataCanvas.style.display = "none";
+      document.body.appendChild(imgDataCanvas);
+
+      try {
+        var imgDataCtx = imgDataCanvas.getContext("2d");
+        imgDataCtx.drawImage(img, 0, 0, img.width / 2, img.height / 2);
+        callback(imgDataCanvas);
+      } finally {
+        document.body.removeChild(imgDataCanvas);
+      }
+    }
+  }]);
+
+  return Mipmapper;
+}();
+
+exports["default"] = Mipmapper;
+
+
+},{}],17:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.log = log;
+exports.recycle = recycle;
+exports.asArray = asArray;
+
+function log(message) {
+  /* eslint-disable no-console */
+  if (console && console.log) console.log(message);
+  /* eslint-enable no-console */
+}
+
+function recycle(values, length, inPlace) {
+  if (length === 0 && !inPlace) return [];
+
+  if (!(values instanceof Array)) {
+    if (inPlace) {
+      throw new Error("Can't do in-place recycling of a non-Array value");
+    }
+
+    values = [values];
+  }
+
+  if (typeof length === "undefined") length = values.length;
+  var dest = inPlace ? values : [];
+  var origLength = values.length;
+
+  while (dest.length < length) {
+    dest.push(values[dest.length % origLength]);
+  }
+
+  if (dest.length > length) {
+    dest.splice(length, dest.length - length);
+  }
+
+  return dest;
+}
+
+function asArray(value) {
+  if (value instanceof Array) return value;else return [value];
+}
+
+
+},{}]},{},[13]);
diff --git a/docs/site_libs/leaflet-binding-2.2.0/leaflet.js b/docs/site_libs/leaflet-binding-2.2.0/leaflet.js
new file mode 100644
index 00000000..c8e7e5e0
--- /dev/null
+++ b/docs/site_libs/leaflet-binding-2.2.0/leaflet.js
@@ -0,0 +1,2789 @@
+(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = undefined;
+
+var _util = require("./util");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var ClusterLayerStore = /*#__PURE__*/function () {
+  function ClusterLayerStore(group) {
+    _classCallCheck(this, ClusterLayerStore);
+
+    this._layers = {};
+    this._group = group;
+  }
+
+  _createClass(ClusterLayerStore, [{
+    key: "add",
+    value: function add(layer, id) {
+      if (typeof id !== "undefined" && id !== null) {
+        if (this._layers[id]) {
+          this._group.removeLayer(this._layers[id]);
+        }
+
+        this._layers[id] = layer;
+      }
+
+      this._group.addLayer(layer);
+    }
+  }, {
+    key: "remove",
+    value: function remove(id) {
+      if (typeof id === "undefined" || id === null) {
+        return;
+      }
+
+      id = (0, _util.asArray)(id);
+
+      for (var i = 0; i < id.length; i++) {
+        if (this._layers[id[i]]) {
+          this._group.removeLayer(this._layers[id[i]]);
+
+          delete this._layers[id[i]];
+        }
+      }
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      this._layers = {};
+
+      this._group.clearLayers();
+    }
+  }]);
+
+  return ClusterLayerStore;
+}();
+
+exports["default"] = ClusterLayerStore;
+
+
+},{"./util":17}],2:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var ControlStore = /*#__PURE__*/function () {
+  function ControlStore(map) {
+    _classCallCheck(this, ControlStore);
+
+    this._controlsNoId = [];
+    this._controlsById = {};
+    this._map = map;
+  }
+
+  _createClass(ControlStore, [{
+    key: "add",
+    value: function add(control, id, html) {
+      if (typeof id !== "undefined" && id !== null) {
+        if (this._controlsById[id]) {
+          this._map.removeControl(this._controlsById[id]);
+        }
+
+        this._controlsById[id] = control;
+      } else {
+        this._controlsNoId.push(control);
+      }
+
+      this._map.addControl(control);
+    }
+  }, {
+    key: "get",
+    value: function get(id) {
+      var control = null;
+
+      if (this._controlsById[id]) {
+        control = this._controlsById[id];
+      }
+
+      return control;
+    }
+  }, {
+    key: "remove",
+    value: function remove(id) {
+      if (this._controlsById[id]) {
+        var control = this._controlsById[id];
+
+        this._map.removeControl(control);
+
+        delete this._controlsById[id];
+      }
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      for (var i = 0; i < this._controlsNoId.length; i++) {
+        var control = this._controlsNoId[i];
+
+        this._map.removeControl(control);
+      }
+
+      this._controlsNoId = [];
+
+      for (var key in this._controlsById) {
+        var _control = this._controlsById[key];
+
+        this._map.removeControl(_control);
+      }
+
+      this._controlsById = {};
+    }
+  }]);
+
+  return ControlStore;
+}();
+
+exports["default"] = ControlStore;
+
+
+},{}],3:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.getCRS = getCRS;
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _proj4leaflet = require("./global/proj4leaflet");
+
+var _proj4leaflet2 = _interopRequireDefault(_proj4leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// Helper function to instanciate a ICRS instance.
+function getCRS(crsOptions) {
+  var crs = _leaflet2["default"].CRS.EPSG3857; // Default Spherical Mercator
+
+  switch (crsOptions.crsClass) {
+    case "L.CRS.EPSG3857":
+      crs = _leaflet2["default"].CRS.EPSG3857;
+      break;
+
+    case "L.CRS.EPSG4326":
+      crs = _leaflet2["default"].CRS.EPSG4326;
+      break;
+
+    case "L.CRS.EPSG3395":
+      crs = _leaflet2["default"].CRS.EPSG3395;
+      break;
+
+    case "L.CRS.Simple":
+      crs = _leaflet2["default"].CRS.Simple;
+      break;
+
+    case "L.Proj.CRS":
+      if (crsOptions.options && crsOptions.options.bounds) {
+        crsOptions.options.bounds = _leaflet2["default"].bounds(crsOptions.options.bounds);
+      }
+
+      if (crsOptions.options && crsOptions.options.transformation) {
+        crsOptions.options.transformation = new _leaflet2["default"].Transformation(crsOptions.options.transformation[0], crsOptions.options.transformation[1], crsOptions.options.transformation[2], crsOptions.options.transformation[3]);
+      }
+
+      crs = new _proj4leaflet2["default"].CRS(crsOptions.code, crsOptions.proj4def, crsOptions.options);
+      break;
+
+    case "L.Proj.CRS.TMS":
+      if (crsOptions.options && crsOptions.options.bounds) {
+        crsOptions.options.bounds = _leaflet2["default"].bounds(crsOptions.options.bounds);
+      }
+
+      if (crsOptions.options && crsOptions.options.transformation) {
+        crsOptions.options.transformation = _leaflet2["default"].Transformation(crsOptions.options.transformation[0], crsOptions.options.transformation[1], crsOptions.options.transformation[2], crsOptions.options.transformation[3]);
+      } // L.Proj.CRS.TMS is deprecated as of Leaflet 1.x, fall back to L.Proj.CRS
+      //crs = new Proj4Leaflet.CRS.TMS(crsOptions.code, crsOptions.proj4def, crsOptions.projectedBounds, crsOptions.options);
+
+
+      crs = new _proj4leaflet2["default"].CRS(crsOptions.code, crsOptions.proj4def, crsOptions.options);
+      break;
+  }
+
+  return crs;
+}
+
+
+},{"./global/leaflet":10,"./global/proj4leaflet":11}],4:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = undefined;
+
+var _util = require("./util");
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var DataFrame = /*#__PURE__*/function () {
+  function DataFrame() {
+    _classCallCheck(this, DataFrame);
+
+    this.columns = [];
+    this.colnames = [];
+    this.colstrict = [];
+    this.effectiveLength = 0;
+    this.colindices = {};
+  }
+
+  _createClass(DataFrame, [{
+    key: "_updateCachedProperties",
+    value: function _updateCachedProperties() {
+      var _this = this;
+
+      this.effectiveLength = 0;
+      this.colindices = {};
+      this.columns.forEach(function (column, i) {
+        _this.effectiveLength = Math.max(_this.effectiveLength, column.length);
+        _this.colindices[_this.colnames[i]] = i;
+      });
+    }
+  }, {
+    key: "_colIndex",
+    value: function _colIndex(colname) {
+      var index = this.colindices[colname];
+      if (typeof index === "undefined") return -1;
+      return index;
+    }
+  }, {
+    key: "col",
+    value: function col(name, values, strict) {
+      if (typeof name !== "string") throw new Error("Invalid column name \"" + name + "\"");
+
+      var index = this._colIndex(name);
+
+      if (arguments.length === 1) {
+        if (index < 0) return null;else return (0, _util.recycle)(this.columns[index], this.effectiveLength);
+      }
+
+      if (index < 0) {
+        index = this.colnames.length;
+        this.colnames.push(name);
+      }
+
+      this.columns[index] = (0, _util.asArray)(values);
+      this.colstrict[index] = !!strict; // TODO: Validate strictness (ensure lengths match up with other stricts)
+
+      this._updateCachedProperties();
+
+      return this;
+    }
+  }, {
+    key: "cbind",
+    value: function cbind(obj, strict) {
+      var _this2 = this;
+
+      Object.keys(obj).forEach(function (name) {
+        var coldata = obj[name];
+
+        _this2.col(name, coldata);
+      });
+      return this;
+    }
+  }, {
+    key: "get",
+    value: function get(row, col, missingOK) {
+      var _this3 = this;
+
+      if (row > this.effectiveLength) throw new Error("Row argument was out of bounds: " + row + " > " + this.effectiveLength);
+      var colIndex = -1;
+
+      if (typeof col === "undefined") {
+        var rowData = {};
+        this.colnames.forEach(function (name, i) {
+          rowData[name] = _this3.columns[i][row % _this3.columns[i].length];
+        });
+        return rowData;
+      } else if (typeof col === "string") {
+        colIndex = this._colIndex(col);
+      } else if (typeof col === "number") {
+        colIndex = col;
+      }
+
+      if (colIndex < 0 || colIndex > this.columns.length) {
+        if (missingOK) return void 0;else throw new Error("Unknown column index: " + col);
+      }
+
+      return this.columns[colIndex][row % this.columns[colIndex].length];
+    }
+  }, {
+    key: "nrow",
+    value: function nrow() {
+      return this.effectiveLength;
+    }
+  }]);
+
+  return DataFrame;
+}();
+
+exports["default"] = DataFrame;
+
+
+},{"./util":17}],5:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// In RMarkdown's self-contained mode, we don't have a way to carry around the
+// images that Leaflet needs but doesn't load into the page. Instead, we'll use
+// the unpkg CDN.
+if (typeof _leaflet2["default"].Icon.Default.imagePath === "undefined") {
+  _leaflet2["default"].Icon.Default.imagePath = "https://unpkg.com/leaflet@1.3.1/dist/images/";
+}
+
+
+},{"./global/leaflet":10}],6:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+// add texxtsize, textOnly, and style
+_leaflet2["default"].Tooltip.prototype.options.textsize = "10px";
+_leaflet2["default"].Tooltip.prototype.options.textOnly = false;
+_leaflet2["default"].Tooltip.prototype.options.style = null; // copy original layout to not completely stomp it.
+
+var initLayoutOriginal = _leaflet2["default"].Tooltip.prototype._initLayout;
+
+_leaflet2["default"].Tooltip.prototype._initLayout = function () {
+  initLayoutOriginal.call(this);
+  this._container.style.fontSize = this.options.textsize;
+
+  if (this.options.textOnly) {
+    _leaflet2["default"].DomUtil.addClass(this._container, "leaflet-tooltip-text-only");
+  }
+
+  if (this.options.style) {
+    for (var property in this.options.style) {
+      this._container.style[property] = this.options.style[property];
+    }
+  }
+};
+
+
+},{"./global/leaflet":10}],7:[function(require,module,exports){
+"use strict";
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+var protocolRegex = /^\/\//;
+
+var upgrade_protocol = function upgrade_protocol(urlTemplate) {
+  if (protocolRegex.test(urlTemplate)) {
+    if (window.location.protocol === "file:") {
+      // if in a local file, support http
+      // http should auto upgrade if necessary
+      urlTemplate = "http:" + urlTemplate;
+    }
+  }
+
+  return urlTemplate;
+};
+
+var originalLTileLayerInitialize = _leaflet2["default"].TileLayer.prototype.initialize;
+
+_leaflet2["default"].TileLayer.prototype.initialize = function (urlTemplate, options) {
+  urlTemplate = upgrade_protocol(urlTemplate);
+  originalLTileLayerInitialize.call(this, urlTemplate, options);
+};
+
+var originalLTileLayerWMSInitialize = _leaflet2["default"].TileLayer.WMS.prototype.initialize;
+
+_leaflet2["default"].TileLayer.WMS.prototype.initialize = function (urlTemplate, options) {
+  urlTemplate = upgrade_protocol(urlTemplate);
+  originalLTileLayerWMSInitialize.call(this, urlTemplate, options);
+};
+
+
+},{"./global/leaflet":10}],8:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.HTMLWidgets;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],9:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.jQuery;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],10:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.L;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],11:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.L.Proj;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],12:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = global.Shiny;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],13:[function(require,module,exports){
+"use strict";
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _shiny = require("./global/shiny");
+
+var _shiny2 = _interopRequireDefault(_shiny);
+
+var _htmlwidgets = require("./global/htmlwidgets");
+
+var _htmlwidgets2 = _interopRequireDefault(_htmlwidgets);
+
+var _util = require("./util");
+
+var _crs_utils = require("./crs_utils");
+
+var _controlStore = require("./control-store");
+
+var _controlStore2 = _interopRequireDefault(_controlStore);
+
+var _layerManager = require("./layer-manager");
+
+var _layerManager2 = _interopRequireDefault(_layerManager);
+
+var _methods = require("./methods");
+
+var _methods2 = _interopRequireDefault(_methods);
+
+require("./fixup-default-icon");
+
+require("./fixup-default-tooltip");
+
+require("./fixup-url-protocol");
+
+var _dataframe = require("./dataframe");
+
+var _dataframe2 = _interopRequireDefault(_dataframe);
+
+var _clusterLayerStore = require("./cluster-layer-store");
+
+var _clusterLayerStore2 = _interopRequireDefault(_clusterLayerStore);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+window.LeafletWidget = {};
+window.LeafletWidget.utils = {};
+
+var methods = window.LeafletWidget.methods = _jquery2["default"].extend({}, _methods2["default"]);
+
+window.LeafletWidget.DataFrame = _dataframe2["default"];
+window.LeafletWidget.ClusterLayerStore = _clusterLayerStore2["default"];
+window.LeafletWidget.utils.getCRS = _crs_utils.getCRS; // Send updated bounds back to app. Takes a leaflet event object as input.
+
+function updateBounds(map) {
+  var id = map.getContainer().id;
+  var bounds = map.getBounds();
+
+  _shiny2["default"].onInputChange(id + "_bounds", {
+    north: bounds.getNorthEast().lat,
+    east: bounds.getNorthEast().lng,
+    south: bounds.getSouthWest().lat,
+    west: bounds.getSouthWest().lng
+  });
+
+  _shiny2["default"].onInputChange(id + "_center", {
+    lng: map.getCenter().lng,
+    lat: map.getCenter().lat
+  });
+
+  _shiny2["default"].onInputChange(id + "_zoom", map.getZoom());
+}
+
+function preventUnintendedZoomOnScroll(map) {
+  // Prevent unwanted scroll capturing. Similar in purpose to
+  // https://github.com/CliffCloud/Leaflet.Sleep but with a
+  // different set of heuristics.
+  // The basic idea is that when a mousewheel/DOMMouseScroll
+  // event is seen, we disable scroll wheel zooming until the
+  // user moves their mouse cursor or clicks on the map. This
+  // is slightly trickier than just listening for mousemove,
+  // because mousemove is fired when the page is scrolled,
+  // even if the user did not physically move the mouse. We
+  // handle this by examining the mousemove event's screenX
+  // and screenY properties; if they change, we know it's a
+  // "true" move.
+  // lastScreen can never be null, but its x and y can.
+  var lastScreen = {
+    x: null,
+    y: null
+  };
+  (0, _jquery2["default"])(document).on("mousewheel DOMMouseScroll", "*", function (e) {
+    // Disable zooming (until the mouse moves or click)
+    map.scrollWheelZoom.disable(); // Any mousemove events at this screen position will be ignored.
+
+    lastScreen = {
+      x: e.originalEvent.screenX,
+      y: e.originalEvent.screenY
+    };
+  });
+  (0, _jquery2["default"])(document).on("mousemove", "*", function (e) {
+    // Did the mouse really move?
+    if (map.options.scrollWheelZoom) {
+      if (lastScreen.x !== null && e.screenX !== lastScreen.x || e.screenY !== lastScreen.y) {
+        // It really moved. Enable zooming.
+        map.scrollWheelZoom.enable();
+        lastScreen = {
+          x: null,
+          y: null
+        };
+      }
+    }
+  });
+  (0, _jquery2["default"])(document).on("mousedown", ".leaflet", function (e) {
+    // Clicking always enables zooming.
+    if (map.options.scrollWheelZoom) {
+      map.scrollWheelZoom.enable();
+      lastScreen = {
+        x: null,
+        y: null
+      };
+    }
+  });
+}
+
+_htmlwidgets2["default"].widget({
+  name: "leaflet",
+  type: "output",
+  factory: function factory(el, width, height) {
+    var map = null;
+    return {
+      // we need to store our map in our returned object.
+      getMap: function getMap() {
+        return map;
+      },
+      renderValue: function renderValue(data) {
+        // Create an appropriate CRS Object if specified
+        if (data && data.options && data.options.crs) {
+          data.options.crs = (0, _crs_utils.getCRS)(data.options.crs);
+        } // As per https://github.com/rstudio/leaflet/pull/294#discussion_r79584810
+
+
+        if (map) {
+          map.remove();
+
+          map = function () {
+            return;
+          }(); // undefine map
+
+        }
+
+        if (data.options.mapFactory && typeof data.options.mapFactory === "function") {
+          map = data.options.mapFactory(el, data.options);
+        } else {
+          map = _leaflet2["default"].map(el, data.options);
+        }
+
+        preventUnintendedZoomOnScroll(map); // Store some state in the map object
+
+        map.leafletr = {
+          // Has the map ever rendered successfully?
+          hasRendered: false,
+          // Data to be rendered when resize is called with area != 0
+          pendingRenderData: null
+        }; // Check if the map is rendered statically (no output binding)
+
+        if (_htmlwidgets2["default"].shinyMode && /\bshiny-bound-output\b/.test(el.className)) {
+          map.id = el.id; // Store the map on the element so we can find it later by ID
+
+          (0, _jquery2["default"])(el).data("leaflet-map", map); // When the map is clicked, send the coordinates back to the app
+
+          map.on("click", function (e) {
+            _shiny2["default"].onInputChange(map.id + "_click", {
+              lat: e.latlng.lat,
+              lng: e.latlng.lng,
+              ".nonce": Math.random() // Force reactivity if lat/lng hasn't changed
+
+            });
+          });
+          var groupTimerId = null;
+          map.on("moveend", function (e) {
+            updateBounds(e.target);
+          }).on("layeradd layerremove", function (e) {
+            // If the layer that's coming or going is a group we created, tell
+            // the server.
+            if (map.layerManager.getGroupNameFromLayerGroup(e.layer)) {
+              // But to avoid chattiness, coalesce events
+              if (groupTimerId) {
+                clearTimeout(groupTimerId);
+                groupTimerId = null;
+              }
+
+              groupTimerId = setTimeout(function () {
+                groupTimerId = null;
+
+                _shiny2["default"].onInputChange(map.id + "_groups", map.layerManager.getVisibleGroups());
+              }, 100);
+            }
+          });
+        }
+
+        this.doRenderValue(data, map);
+      },
+      doRenderValue: function doRenderValue(data, map) {
+        // Leaflet does not behave well when you set up a bunch of layers when
+        // the map is not visible (width/height == 0). Popups get misaligned
+        // relative to their owning markers, and the fitBounds calculations
+        // are off. Therefore we wait until the map is actually showing to
+        // render the value (we rely on the resize() callback being invoked
+        // at the appropriate time).
+        if (el.offsetWidth === 0 || el.offsetHeight === 0) {
+          map.leafletr.pendingRenderData = data;
+          return;
+        }
+
+        map.leafletr.pendingRenderData = null; // Merge data options into defaults
+
+        var options = _jquery2["default"].extend({
+          zoomToLimits: "always"
+        }, data.options);
+
+        if (!map.layerManager) {
+          map.controls = new _controlStore2["default"](map);
+          map.layerManager = new _layerManager2["default"](map);
+        } else {
+          map.controls.clear();
+          map.layerManager.clear();
+        }
+
+        var explicitView = false;
+
+        if (data.setView) {
+          explicitView = true;
+          map.setView.apply(map, data.setView);
+        }
+
+        if (data.fitBounds) {
+          explicitView = true;
+          methods.fitBounds.apply(map, data.fitBounds);
+        }
+
+        if (data.flyTo) {
+          if (!explicitView && !map.leafletr.hasRendered) {
+            // must be done to give a initial starting point
+            map.fitWorld();
+          }
+
+          explicitView = true;
+          map.flyTo.apply(map, data.flyTo);
+        }
+
+        if (data.flyToBounds) {
+          if (!explicitView && !map.leafletr.hasRendered) {
+            // must be done to give a initial starting point
+            map.fitWorld();
+          }
+
+          explicitView = true;
+          methods.flyToBounds.apply(map, data.flyToBounds);
+        }
+
+        if (data.options.center) {
+          explicitView = true;
+        } // Returns true if the zoomToLimits option says that the map should be
+        // zoomed to map elements.
+
+
+        function needsZoom() {
+          return options.zoomToLimits === "always" || options.zoomToLimits === "first" && !map.leafletr.hasRendered;
+        }
+
+        if (!explicitView && needsZoom() && !map.getZoom()) {
+          if (data.limits && !_jquery2["default"].isEmptyObject(data.limits)) {
+            // Use the natural limits of what's being drawn on the map
+            // If the size of the bounding box is 0, leaflet gets all weird
+            var pad = 0.006;
+
+            if (data.limits.lat[0] === data.limits.lat[1]) {
+              data.limits.lat[0] = data.limits.lat[0] - pad;
+              data.limits.lat[1] = data.limits.lat[1] + pad;
+            }
+
+            if (data.limits.lng[0] === data.limits.lng[1]) {
+              data.limits.lng[0] = data.limits.lng[0] - pad;
+              data.limits.lng[1] = data.limits.lng[1] + pad;
+            }
+
+            map.fitBounds([[data.limits.lat[0], data.limits.lng[0]], [data.limits.lat[1], data.limits.lng[1]]]);
+          } else {
+            map.fitWorld();
+          }
+        }
+
+        for (var i = 0; data.calls && i < data.calls.length; i++) {
+          var call = data.calls[i];
+          if (methods[call.method]) methods[call.method].apply(map, call.args);else (0, _util.log)("Unknown method " + call.method);
+        }
+
+        map.leafletr.hasRendered = true;
+
+        if (_htmlwidgets2["default"].shinyMode) {
+          setTimeout(function () {
+            updateBounds(map);
+          }, 1);
+        }
+      },
+      resize: function resize(width, height) {
+        if (map) {
+          map.invalidateSize();
+
+          if (map.leafletr.pendingRenderData) {
+            this.doRenderValue(map.leafletr.pendingRenderData, map);
+          }
+        }
+      }
+    };
+  }
+});
+
+if (_htmlwidgets2["default"].shinyMode) {
+  _shiny2["default"].addCustomMessageHandler("leaflet-calls", function (data) {
+    var id = data.id;
+    var el = document.getElementById(id);
+    var map = el ? (0, _jquery2["default"])(el).data("leaflet-map") : null;
+
+    if (!map) {
+      (0, _util.log)("Couldn't find map with id " + id);
+      return;
+    } // If the map has not rendered, stash the proposed `leafletProxy()` calls
+    // in `pendingRenderData.calls` to be run on display via `doRenderValue()`.
+    // This is necessary if the map has not been rendered.
+    // If new pendingRenderData is set via a new `leaflet()`, the previous calls will be discarded.
+
+
+    if (!map.leafletr.hasRendered) {
+      map.leafletr.pendingRenderData.calls = map.leafletr.pendingRenderData.calls.concat(data.calls);
+      return;
+    }
+
+    for (var i = 0; i < data.calls.length; i++) {
+      var call = data.calls[i];
+      var args = call.args;
+
+      for (var _i = 0; _i < call.evals.length; _i++) {
+        window.HTMLWidgets.evaluateStringMember(args, call.evals[_i]);
+      }
+
+      if (call.dependencies) {
+        _shiny2["default"].renderDependencies(call.dependencies);
+      }
+
+      if (methods[call.method]) methods[call.method].apply(map, args);else (0, _util.log)("Unknown method " + call.method);
+    }
+  });
+}
+
+
+},{"./cluster-layer-store":1,"./control-store":2,"./crs_utils":3,"./dataframe":4,"./fixup-default-icon":5,"./fixup-default-tooltip":6,"./fixup-url-protocol":7,"./global/htmlwidgets":8,"./global/jquery":9,"./global/leaflet":10,"./global/shiny":12,"./layer-manager":14,"./methods":15,"./util":17}],14:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports["default"] = undefined;
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _util = require("./util");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+var LayerManager = /*#__PURE__*/function () {
+  function LayerManager(map) {
+    _classCallCheck(this, LayerManager);
+
+    this._map = map; // BEGIN layer indices
+    // {<groupname>: {<stamp>: layer}}
+
+    this._byGroup = {}; // {<categoryName>: {<stamp>: layer}}
+
+    this._byCategory = {}; // {<categoryName_layerId>: layer}
+
+    this._byLayerId = {}; // {<stamp>: {
+    //             "group": <groupname>,
+    //             "layerId": <layerId>,
+    //             "category": <category>,
+    //             "container": <container>
+    //           }
+    // }
+
+    this._byStamp = {}; // {<crosstalkGroupName>: {<key>: [<stamp>, <stamp>, ...], ...}}
+
+    this._byCrosstalkGroup = {}; // END layer indices
+    // {<categoryName>: L.layerGroup}
+
+    this._categoryContainers = {}; // {<groupName>: L.layerGroup}
+
+    this._groupContainers = {};
+  }
+
+  _createClass(LayerManager, [{
+    key: "addLayer",
+    value: function addLayer(layer, category, layerId, group, ctGroup, ctKey) {
+      var _this = this;
+
+      // Was a group provided?
+      var hasId = typeof layerId === "string";
+      var grouped = typeof group === "string";
+      var stamp = _leaflet2["default"].Util.stamp(layer) + ""; // This will be the default layer group to add the layer to.
+      // We may overwrite this let before using it (i.e. if a group is assigned).
+      // This one liner creates the _categoryContainers[category] entry if it
+      // doesn't already exist.
+
+      var container = this._categoryContainers[category] = this._categoryContainers[category] || _leaflet2["default"].layerGroup().addTo(this._map);
+
+      var oldLayer = null;
+
+      if (hasId) {
+        // First, remove any layer with the same category and layerId
+        var prefixedLayerId = this._layerIdKey(category, layerId);
+
+        oldLayer = this._byLayerId[prefixedLayerId];
+
+        if (oldLayer) {
+          this._removeLayer(oldLayer);
+        } // Update layerId index
+
+
+        this._byLayerId[prefixedLayerId] = layer;
+      } // Update group index
+
+
+      if (grouped) {
+        this._byGroup[group] = this._byGroup[group] || {};
+        this._byGroup[group][stamp] = layer; // Since a group is assigned, don't add the layer to the category's layer
+        // group; instead, use the group's layer group.
+        // This one liner creates the _groupContainers[group] entry if it doesn't
+        // already exist.
+
+        container = this.getLayerGroup(group, true);
+      } // Update category index
+
+
+      this._byCategory[category] = this._byCategory[category] || {};
+      this._byCategory[category][stamp] = layer; // Update stamp index
+
+      var layerInfo = this._byStamp[stamp] = {
+        layer: layer,
+        group: group,
+        ctGroup: ctGroup,
+        ctKey: ctKey,
+        layerId: layerId,
+        category: category,
+        container: container,
+        hidden: false
+      }; // Update crosstalk group index
+
+      if (ctGroup) {
+        if (layer.setStyle) {
+          // Need to save this info so we know what to set opacity to later
+          layer.options.origOpacity = typeof layer.options.opacity !== "undefined" ? layer.options.opacity : 0.5;
+          layer.options.origFillOpacity = typeof layer.options.fillOpacity !== "undefined" ? layer.options.fillOpacity : 0.2;
+        }
+
+        var ctg = this._byCrosstalkGroup[ctGroup];
+
+        if (!ctg) {
+          ctg = this._byCrosstalkGroup[ctGroup] = {};
+          var crosstalk = global.crosstalk;
+
+          var handleFilter = function handleFilter(e) {
+            if (!e.value) {
+              var groupKeys = Object.keys(ctg);
+
+              for (var i = 0; i < groupKeys.length; i++) {
+                var key = groupKeys[i];
+                var _layerInfo = _this._byStamp[ctg[key]];
+
+                _this._setVisibility(_layerInfo, true);
+              }
+            } else {
+              var selectedKeys = {};
+
+              for (var _i = 0; _i < e.value.length; _i++) {
+                selectedKeys[e.value[_i]] = true;
+              }
+
+              var _groupKeys = Object.keys(ctg);
+
+              for (var _i2 = 0; _i2 < _groupKeys.length; _i2++) {
+                var _key = _groupKeys[_i2];
+                var _layerInfo2 = _this._byStamp[ctg[_key]];
+
+                _this._setVisibility(_layerInfo2, selectedKeys[_groupKeys[_i2]]);
+              }
+            }
+          };
+
+          var filterHandle = new crosstalk.FilterHandle(ctGroup);
+          filterHandle.on("change", handleFilter);
+
+          var handleSelection = function handleSelection(e) {
+            if (!e.value || !e.value.length) {
+              var groupKeys = Object.keys(ctg);
+
+              for (var i = 0; i < groupKeys.length; i++) {
+                var key = groupKeys[i];
+                var _layerInfo3 = _this._byStamp[ctg[key]];
+
+                _this._setOpacity(_layerInfo3, 1.0);
+              }
+            } else {
+              var selectedKeys = {};
+
+              for (var _i3 = 0; _i3 < e.value.length; _i3++) {
+                selectedKeys[e.value[_i3]] = true;
+              }
+
+              var _groupKeys2 = Object.keys(ctg);
+
+              for (var _i4 = 0; _i4 < _groupKeys2.length; _i4++) {
+                var _key2 = _groupKeys2[_i4];
+                var _layerInfo4 = _this._byStamp[ctg[_key2]];
+
+                _this._setOpacity(_layerInfo4, selectedKeys[_groupKeys2[_i4]] ? 1.0 : 0.2);
+              }
+            }
+          };
+
+          var selHandle = new crosstalk.SelectionHandle(ctGroup);
+          selHandle.on("change", handleSelection);
+          setTimeout(function () {
+            handleFilter({
+              value: filterHandle.filteredKeys
+            });
+            handleSelection({
+              value: selHandle.value
+            });
+          }, 100);
+        }
+
+        if (!ctg[ctKey]) ctg[ctKey] = [];
+        ctg[ctKey].push(stamp);
+      } // Add to container
+
+
+      if (!layerInfo.hidden) container.addLayer(layer);
+      return oldLayer;
+    }
+  }, {
+    key: "brush",
+    value: function brush(bounds, extraInfo) {
+      var _this2 = this;
+
+      /* eslint-disable no-console */
+      // For each Crosstalk group...
+      Object.keys(this._byCrosstalkGroup).forEach(function (ctGroupName) {
+        var ctg = _this2._byCrosstalkGroup[ctGroupName];
+        var selection = []; // ...iterate over each Crosstalk key (each of which may have multiple
+        // layers)...
+
+        Object.keys(ctg).forEach(function (ctKey) {
+          // ...and for each layer...
+          ctg[ctKey].forEach(function (stamp) {
+            var layerInfo = _this2._byStamp[stamp]; // ...if it's something with a point...
+
+            if (layerInfo.layer.getLatLng) {
+              // ... and it's inside the selection bounds...
+              // TODO: Use pixel containment, not lat/lng containment
+              if (bounds.contains(layerInfo.layer.getLatLng())) {
+                // ...add the key to the selection.
+                selection.push(ctKey);
+              }
+            }
+          });
+        });
+        new global.crosstalk.SelectionHandle(ctGroupName).set(selection, extraInfo);
+      });
+    }
+  }, {
+    key: "unbrush",
+    value: function unbrush(extraInfo) {
+      Object.keys(this._byCrosstalkGroup).forEach(function (ctGroupName) {
+        new global.crosstalk.SelectionHandle(ctGroupName).clear(extraInfo);
+      });
+    }
+  }, {
+    key: "_setVisibility",
+    value: function _setVisibility(layerInfo, visible) {
+      if (layerInfo.hidden ^ visible) {
+        return;
+      } else if (visible) {
+        layerInfo.container.addLayer(layerInfo.layer);
+        layerInfo.hidden = false;
+      } else {
+        layerInfo.container.removeLayer(layerInfo.layer);
+        layerInfo.hidden = true;
+      }
+    }
+  }, {
+    key: "_setOpacity",
+    value: function _setOpacity(layerInfo, opacity) {
+      if (layerInfo.layer.setOpacity) {
+        layerInfo.layer.setOpacity(opacity);
+      } else if (layerInfo.layer.setStyle) {
+        layerInfo.layer.setStyle({
+          opacity: opacity * layerInfo.layer.options.origOpacity,
+          fillOpacity: opacity * layerInfo.layer.options.origFillOpacity
+        });
+      }
+    }
+  }, {
+    key: "getLayer",
+    value: function getLayer(category, layerId) {
+      return this._byLayerId[this._layerIdKey(category, layerId)];
+    }
+  }, {
+    key: "removeLayer",
+    value: function removeLayer(category, layerIds) {
+      var _this3 = this;
+
+      // Find layer info
+      _jquery2["default"].each((0, _util.asArray)(layerIds), function (i, layerId) {
+        var layer = _this3._byLayerId[_this3._layerIdKey(category, layerId)];
+
+        if (layer) {
+          _this3._removeLayer(layer);
+        }
+      });
+    }
+  }, {
+    key: "clearLayers",
+    value: function clearLayers(category) {
+      var _this4 = this;
+
+      // Find all layers in _byCategory[category]
+      var catTable = this._byCategory[category];
+
+      if (!catTable) {
+        return false;
+      } // Remove all layers. Make copy of keys to avoid mutating the collection
+      // behind the iterator you're accessing.
+
+
+      var stamps = [];
+
+      _jquery2["default"].each(catTable, function (k, v) {
+        stamps.push(k);
+      });
+
+      _jquery2["default"].each(stamps, function (i, stamp) {
+        _this4._removeLayer(stamp);
+      });
+    }
+  }, {
+    key: "getLayerGroup",
+    value: function getLayerGroup(group, ensureExists) {
+      var g = this._groupContainers[group];
+
+      if (ensureExists && !g) {
+        this._byGroup[group] = this._byGroup[group] || {};
+        g = this._groupContainers[group] = _leaflet2["default"].featureGroup();
+        g.groupname = group;
+        g.addTo(this._map);
+      }
+
+      return g;
+    }
+  }, {
+    key: "getGroupNameFromLayerGroup",
+    value: function getGroupNameFromLayerGroup(layerGroup) {
+      return layerGroup.groupname;
+    }
+  }, {
+    key: "getVisibleGroups",
+    value: function getVisibleGroups() {
+      var _this5 = this;
+
+      var result = [];
+
+      _jquery2["default"].each(this._groupContainers, function (k, v) {
+        if (_this5._map.hasLayer(v)) {
+          result.push(k);
+        }
+      });
+
+      return result;
+    }
+  }, {
+    key: "getAllGroupNames",
+    value: function getAllGroupNames() {
+      var result = [];
+
+      _jquery2["default"].each(this._groupContainers, function (k, v) {
+        result.push(k);
+      });
+
+      return result;
+    }
+  }, {
+    key: "clearGroup",
+    value: function clearGroup(group) {
+      var _this6 = this;
+
+      // Find all layers in _byGroup[group]
+      var groupTable = this._byGroup[group];
+
+      if (!groupTable) {
+        return false;
+      } // Remove all layers. Make copy of keys to avoid mutating the collection
+      // behind the iterator you're accessing.
+
+
+      var stamps = [];
+
+      _jquery2["default"].each(groupTable, function (k, v) {
+        stamps.push(k);
+      });
+
+      _jquery2["default"].each(stamps, function (i, stamp) {
+        _this6._removeLayer(stamp);
+      });
+    }
+  }, {
+    key: "clear",
+    value: function clear() {
+      function clearLayerGroup(key, layerGroup) {
+        layerGroup.clearLayers();
+      } // Clear all indices and layerGroups
+
+
+      this._byGroup = {};
+      this._byCategory = {};
+      this._byLayerId = {};
+      this._byStamp = {};
+      this._byCrosstalkGroup = {};
+
+      _jquery2["default"].each(this._categoryContainers, clearLayerGroup);
+
+      this._categoryContainers = {};
+
+      _jquery2["default"].each(this._groupContainers, clearLayerGroup);
+
+      this._groupContainers = {};
+    }
+  }, {
+    key: "_removeLayer",
+    value: function _removeLayer(layer) {
+      var stamp;
+
+      if (typeof layer === "string") {
+        stamp = layer;
+      } else {
+        stamp = _leaflet2["default"].Util.stamp(layer);
+      }
+
+      var layerInfo = this._byStamp[stamp];
+
+      if (!layerInfo) {
+        return false;
+      }
+
+      layerInfo.container.removeLayer(stamp);
+
+      if (typeof layerInfo.group === "string") {
+        delete this._byGroup[layerInfo.group][stamp];
+      }
+
+      if (typeof layerInfo.layerId === "string") {
+        delete this._byLayerId[this._layerIdKey(layerInfo.category, layerInfo.layerId)];
+      }
+
+      delete this._byCategory[layerInfo.category][stamp];
+      delete this._byStamp[stamp];
+
+      if (layerInfo.ctGroup) {
+        var ctGroup = this._byCrosstalkGroup[layerInfo.ctGroup];
+        var layersForKey = ctGroup[layerInfo.ctKey];
+        var idx = layersForKey ? layersForKey.indexOf(stamp) : -1;
+
+        if (idx >= 0) {
+          if (layersForKey.length === 1) {
+            delete ctGroup[layerInfo.ctKey];
+          } else {
+            layersForKey.splice(idx, 1);
+          }
+        }
+      }
+    }
+  }, {
+    key: "_layerIdKey",
+    value: function _layerIdKey(category, layerId) {
+      return category + "\n" + layerId;
+    }
+  }]);
+
+  return LayerManager;
+}();
+
+exports["default"] = LayerManager;
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./global/jquery":9,"./global/leaflet":10,"./util":17}],15:[function(require,module,exports){
+(function (global){(function (){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+var _jquery = require("./global/jquery");
+
+var _jquery2 = _interopRequireDefault(_jquery);
+
+var _leaflet = require("./global/leaflet");
+
+var _leaflet2 = _interopRequireDefault(_leaflet);
+
+var _shiny = require("./global/shiny");
+
+var _shiny2 = _interopRequireDefault(_shiny);
+
+var _htmlwidgets = require("./global/htmlwidgets");
+
+var _htmlwidgets2 = _interopRequireDefault(_htmlwidgets);
+
+var _util = require("./util");
+
+var _crs_utils = require("./crs_utils");
+
+var _dataframe = require("./dataframe");
+
+var _dataframe2 = _interopRequireDefault(_dataframe);
+
+var _clusterLayerStore = require("./cluster-layer-store");
+
+var _clusterLayerStore2 = _interopRequireDefault(_clusterLayerStore);
+
+var _mipmapper = require("./mipmapper");
+
+var _mipmapper2 = _interopRequireDefault(_mipmapper);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+var methods = {};
+exports["default"] = methods;
+
+function mouseHandler(mapId, layerId, group, eventName, extraInfo) {
+  return function (e) {
+    if (!_htmlwidgets2["default"].shinyMode) return;
+    var latLng = e.target.getLatLng ? e.target.getLatLng() : e.latlng;
+
+    if (latLng) {
+      // retrieve only lat, lon values to remove prototype
+      //   and extra parameters added by 3rd party modules
+      // these objects are for json serialization, not javascript
+      var latLngVal = _leaflet2["default"].latLng(latLng); // make sure it has consistent shape
+
+
+      latLng = {
+        lat: latLngVal.lat,
+        lng: latLngVal.lng
+      };
+    }
+
+    var eventInfo = _jquery2["default"].extend({
+      id: layerId,
+      ".nonce": Math.random() // force reactivity
+
+    }, group !== null ? {
+      group: group
+    } : null, latLng, extraInfo);
+
+    _shiny2["default"].onInputChange(mapId + "_" + eventName, eventInfo);
+  };
+}
+
+methods.mouseHandler = mouseHandler;
+
+methods.clearGroup = function (group) {
+  var _this = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, v) {
+    _this.layerManager.clearGroup(v);
+  });
+};
+
+methods.setView = function (center, zoom, options) {
+  this.setView(center, zoom, options);
+};
+
+methods.fitBounds = function (lat1, lng1, lat2, lng2, options) {
+  this.fitBounds([[lat1, lng1], [lat2, lng2]], options);
+};
+
+methods.flyTo = function (center, zoom, options) {
+  this.flyTo(center, zoom, options);
+};
+
+methods.flyToBounds = function (lat1, lng1, lat2, lng2, options) {
+  this.flyToBounds([[lat1, lng1], [lat2, lng2]], options);
+};
+
+methods.setMaxBounds = function (lat1, lng1, lat2, lng2) {
+  this.setMaxBounds([[lat1, lng1], [lat2, lng2]]);
+};
+
+methods.addPopups = function (lat, lng, popup, layerId, group, options) {
+  var _this2 = this;
+
+  var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("popup", popup).col("layerId", layerId).col("group", group).cbind(options);
+
+  var _loop = function _loop(i) {
+    if (_jquery2["default"].isNumeric(df.get(i, "lat")) && _jquery2["default"].isNumeric(df.get(i, "lng"))) {
+      (function () {
+        var popup = _leaflet2["default"].popup(df.get(i)).setLatLng([df.get(i, "lat"), df.get(i, "lng")]).setContent(df.get(i, "popup"));
+
+        var thisId = df.get(i, "layerId");
+        var thisGroup = df.get(i, "group");
+        this.layerManager.addLayer(popup, "popup", thisId, thisGroup);
+      }).call(_this2);
+    }
+  };
+
+  for (var i = 0; i < df.nrow(); i++) {
+    _loop(i);
+  }
+};
+
+methods.removePopup = function (layerId) {
+  this.layerManager.removeLayer("popup", layerId);
+};
+
+methods.clearPopups = function () {
+  this.layerManager.clearLayers("popup");
+};
+
+methods.addTiles = function (urlTemplate, layerId, group, options) {
+  this.layerManager.addLayer(_leaflet2["default"].tileLayer(urlTemplate, options), "tile", layerId, group);
+};
+
+methods.removeTiles = function (layerId) {
+  this.layerManager.removeLayer("tile", layerId);
+};
+
+methods.clearTiles = function () {
+  this.layerManager.clearLayers("tile");
+};
+
+methods.addWMSTiles = function (baseUrl, layerId, group, options) {
+  if (options && options.crs) {
+    options.crs = (0, _crs_utils.getCRS)(options.crs);
+  }
+
+  this.layerManager.addLayer(_leaflet2["default"].tileLayer.wms(baseUrl, options), "tile", layerId, group);
+}; // Given:
+//   {data: ["a", "b", "c"], index: [0, 1, 0, 2]}
+// returns:
+//   ["a", "b", "a", "c"]
+
+
+function unpackStrings(iconset) {
+  if (!iconset) {
+    return iconset;
+  }
+
+  if (typeof iconset.index === "undefined") {
+    return iconset;
+  }
+
+  iconset.data = (0, _util.asArray)(iconset.data);
+  iconset.index = (0, _util.asArray)(iconset.index);
+  return _jquery2["default"].map(iconset.index, function (e, i) {
+    return iconset.data[e];
+  });
+}
+
+function addMarkers(map, df, group, clusterOptions, clusterId, markerFunc) {
+  (function () {
+    var _this3 = this;
+
+    var clusterGroup = this.layerManager.getLayer("cluster", clusterId),
+        cluster = clusterOptions !== null;
+
+    if (cluster && !clusterGroup) {
+      clusterGroup = _leaflet2["default"].markerClusterGroup.layerSupport(clusterOptions);
+
+      if (clusterOptions.freezeAtZoom) {
+        var freezeAtZoom = clusterOptions.freezeAtZoom;
+        delete clusterOptions.freezeAtZoom;
+        clusterGroup.freezeAtZoom(freezeAtZoom);
+      }
+
+      clusterGroup.clusterLayerStore = new _clusterLayerStore2["default"](clusterGroup);
+    }
+
+    var extraInfo = cluster ? {
+      clusterId: clusterId
+    } : {};
+
+    var _loop2 = function _loop2(i) {
+      if (_jquery2["default"].isNumeric(df.get(i, "lat")) && _jquery2["default"].isNumeric(df.get(i, "lng"))) {
+        (function () {
+          var marker = markerFunc(df, i);
+          var thisId = df.get(i, "layerId");
+          var thisGroup = cluster ? null : df.get(i, "group");
+
+          if (cluster) {
+            clusterGroup.clusterLayerStore.add(marker, thisId);
+          } else {
+            this.layerManager.addLayer(marker, "marker", thisId, thisGroup, df.get(i, "ctGroup", true), df.get(i, "ctKey", true));
+          }
+
+          var popup = df.get(i, "popup");
+          var popupOptions = df.get(i, "popupOptions");
+
+          if (popup !== null) {
+            if (popupOptions !== null) {
+              marker.bindPopup(popup, popupOptions);
+            } else {
+              marker.bindPopup(popup);
+            }
+          }
+
+          var label = df.get(i, "label");
+          var labelOptions = df.get(i, "labelOptions");
+
+          if (label !== null) {
+            if (labelOptions !== null) {
+              if (labelOptions.permanent) {
+                marker.bindTooltip(label, labelOptions).openTooltip();
+              } else {
+                marker.bindTooltip(label, labelOptions);
+              }
+            } else {
+              marker.bindTooltip(label);
+            }
+          }
+
+          marker.on("click", mouseHandler(this.id, thisId, thisGroup, "marker_click", extraInfo), this);
+          marker.on("mouseover", mouseHandler(this.id, thisId, thisGroup, "marker_mouseover", extraInfo), this);
+          marker.on("mouseout", mouseHandler(this.id, thisId, thisGroup, "marker_mouseout", extraInfo), this);
+          marker.on("dragend", mouseHandler(this.id, thisId, thisGroup, "marker_dragend", extraInfo), this);
+        }).call(_this3);
+      }
+    };
+
+    for (var i = 0; i < df.nrow(); i++) {
+      _loop2(i);
+    }
+
+    if (cluster) {
+      this.layerManager.addLayer(clusterGroup, "cluster", clusterId, group);
+    }
+  }).call(map);
+}
+
+methods.addGenericMarkers = addMarkers;
+
+methods.addMarkers = function (lat, lng, icon, layerId, group, options, popup, popupOptions, clusterOptions, clusterId, label, labelOptions, crosstalkOptions) {
+  var icondf;
+  var getIcon;
+
+  if (icon) {
+    // Unpack icons
+    icon.iconUrl = unpackStrings(icon.iconUrl);
+    icon.iconRetinaUrl = unpackStrings(icon.iconRetinaUrl);
+    icon.shadowUrl = unpackStrings(icon.shadowUrl);
+    icon.shadowRetinaUrl = unpackStrings(icon.shadowRetinaUrl); // This cbinds the icon URLs and any other icon options; they're all
+    // present on the icon object.
+
+    icondf = new _dataframe2["default"]().cbind(icon); // Constructs an icon from a specified row of the icon dataframe.
+
+    getIcon = function getIcon(i) {
+      var opts = icondf.get(i);
+
+      if (!opts.iconUrl) {
+        return new _leaflet2["default"].Icon.Default();
+      } // Composite options (like points or sizes) are passed from R with each
+      // individual component as its own option. We need to combine them now
+      // into their composite form.
+
+
+      if (opts.iconWidth) {
+        opts.iconSize = [opts.iconWidth, opts.iconHeight];
+      }
+
+      if (opts.shadowWidth) {
+        opts.shadowSize = [opts.shadowWidth, opts.shadowHeight];
+      }
+
+      if (opts.iconAnchorX) {
+        opts.iconAnchor = [opts.iconAnchorX, opts.iconAnchorY];
+      }
+
+      if (opts.shadowAnchorX) {
+        opts.shadowAnchor = [opts.shadowAnchorX, opts.shadowAnchorY];
+      }
+
+      if (opts.popupAnchorX) {
+        opts.popupAnchor = [opts.popupAnchorX, opts.popupAnchorY];
+      }
+
+      return new _leaflet2["default"].Icon(opts);
+    };
+  }
+
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).cbind(options).cbind(crosstalkOptions || {});
+    if (icon) icondf.effectiveLength = df.nrow();
+    addMarkers(this, df, group, clusterOptions, clusterId, function (df, i) {
+      var options = df.get(i);
+      if (icon) options.icon = getIcon(i);
+      return _leaflet2["default"].marker([df.get(i, "lat"), df.get(i, "lng")], options);
+    });
+  }
+};
+
+methods.addAwesomeMarkers = function (lat, lng, icon, layerId, group, options, popup, popupOptions, clusterOptions, clusterId, label, labelOptions, crosstalkOptions) {
+  var icondf;
+  var getIcon;
+
+  if (icon) {
+    // This cbinds the icon URLs and any other icon options; they're all
+    // present on the icon object.
+    icondf = new _dataframe2["default"]().cbind(icon); // Constructs an icon from a specified row of the icon dataframe.
+
+    getIcon = function getIcon(i) {
+      var opts = icondf.get(i);
+
+      if (!opts) {
+        return new _leaflet2["default"].AwesomeMarkers.icon();
+      }
+
+      if (opts.squareMarker) {
+        opts.className = "awesome-marker awesome-marker-square";
+      }
+
+      return new _leaflet2["default"].AwesomeMarkers.icon(opts);
+    };
+  }
+
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).cbind(options).cbind(crosstalkOptions || {});
+    if (icon) icondf.effectiveLength = df.nrow();
+    addMarkers(this, df, group, clusterOptions, clusterId, function (df, i) {
+      var options = df.get(i);
+      if (icon) options.icon = getIcon(i);
+      return _leaflet2["default"].marker([df.get(i, "lat"), df.get(i, "lng")], options);
+    });
+  }
+};
+
+function addLayers(map, category, df, layerFunc) {
+  var _loop3 = function _loop3(i) {
+    (function () {
+      var layer = layerFunc(df, i);
+
+      if (!_jquery2["default"].isEmptyObject(layer)) {
+        var thisId = df.get(i, "layerId");
+        var thisGroup = df.get(i, "group");
+        this.layerManager.addLayer(layer, category, thisId, thisGroup, df.get(i, "ctGroup", true), df.get(i, "ctKey", true));
+
+        if (layer.bindPopup) {
+          var popup = df.get(i, "popup");
+          var popupOptions = df.get(i, "popupOptions");
+
+          if (popup !== null) {
+            if (popupOptions !== null) {
+              layer.bindPopup(popup, popupOptions);
+            } else {
+              layer.bindPopup(popup);
+            }
+          }
+        }
+
+        if (layer.bindTooltip) {
+          var label = df.get(i, "label");
+          var labelOptions = df.get(i, "labelOptions");
+
+          if (label !== null) {
+            if (labelOptions !== null) {
+              layer.bindTooltip(label, labelOptions);
+            } else {
+              layer.bindTooltip(label);
+            }
+          }
+        }
+
+        layer.on("click", mouseHandler(this.id, thisId, thisGroup, category + "_click"), this);
+        layer.on("mouseover", mouseHandler(this.id, thisId, thisGroup, category + "_mouseover"), this);
+        layer.on("mouseout", mouseHandler(this.id, thisId, thisGroup, category + "_mouseout"), this);
+        var highlightStyle = df.get(i, "highlightOptions");
+
+        if (!_jquery2["default"].isEmptyObject(highlightStyle)) {
+          var defaultStyle = {};
+
+          _jquery2["default"].each(highlightStyle, function (k, v) {
+            if (k != "bringToFront" && k != "sendToBack") {
+              if (df.get(i, k)) {
+                defaultStyle[k] = df.get(i, k);
+              }
+            }
+          });
+
+          layer.on("mouseover", function (e) {
+            this.setStyle(highlightStyle);
+
+            if (highlightStyle.bringToFront) {
+              this.bringToFront();
+            }
+          });
+          layer.on("mouseout", function (e) {
+            this.setStyle(defaultStyle);
+
+            if (highlightStyle.sendToBack) {
+              this.bringToBack();
+            }
+          });
+        }
+      }
+    }).call(map);
+  };
+
+  for (var i = 0; i < df.nrow(); i++) {
+    _loop3(i);
+  }
+}
+
+methods.addGenericLayers = addLayers;
+
+methods.addCircles = function (lat, lng, radius, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions, crosstalkOptions) {
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("radius", radius).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options).cbind(crosstalkOptions || {});
+    addLayers(this, "shape", df, function (df, i) {
+      if (_jquery2["default"].isNumeric(df.get(i, "lat")) && _jquery2["default"].isNumeric(df.get(i, "lng")) && _jquery2["default"].isNumeric(df.get(i, "radius"))) {
+        return _leaflet2["default"].circle([df.get(i, "lat"), df.get(i, "lng")], df.get(i, "radius"), df.get(i));
+      } else {
+        return null;
+      }
+    });
+  }
+};
+
+methods.addCircleMarkers = function (lat, lng, radius, layerId, group, options, clusterOptions, clusterId, popup, popupOptions, label, labelOptions, crosstalkOptions) {
+  if (!(_jquery2["default"].isEmptyObject(lat) || _jquery2["default"].isEmptyObject(lng)) || _jquery2["default"].isNumeric(lat) && _jquery2["default"].isNumeric(lng)) {
+    var df = new _dataframe2["default"]().col("lat", lat).col("lng", lng).col("radius", radius).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).cbind(crosstalkOptions || {}).cbind(options);
+    addMarkers(this, df, group, clusterOptions, clusterId, function (df, i) {
+      return _leaflet2["default"].circleMarker([df.get(i, "lat"), df.get(i, "lng")], df.get(i));
+    });
+  }
+};
+/*
+ * @param lat Array of arrays of latitude coordinates for polylines
+ * @param lng Array of arrays of longitude coordinates for polylines
+ */
+
+
+methods.addPolylines = function (polygons, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions) {
+  if (polygons.length > 0) {
+    var df = new _dataframe2["default"]().col("shapes", polygons).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options);
+    addLayers(this, "shape", df, function (df, i) {
+      var shapes = df.get(i, "shapes");
+      shapes = shapes.map(function (shape) {
+        return _htmlwidgets2["default"].dataframeToD3(shape[0]);
+      });
+
+      if (shapes.length > 1) {
+        return _leaflet2["default"].polyline(shapes, df.get(i));
+      } else {
+        return _leaflet2["default"].polyline(shapes[0], df.get(i));
+      }
+    });
+  }
+};
+
+methods.removeMarker = function (layerId) {
+  this.layerManager.removeLayer("marker", layerId);
+};
+
+methods.clearMarkers = function () {
+  this.layerManager.clearLayers("marker");
+};
+
+methods.removeMarkerCluster = function (layerId) {
+  this.layerManager.removeLayer("cluster", layerId);
+};
+
+methods.removeMarkerFromCluster = function (layerId, clusterId) {
+  var cluster = this.layerManager.getLayer("cluster", clusterId);
+  if (!cluster) return;
+  cluster.clusterLayerStore.remove(layerId);
+};
+
+methods.clearMarkerClusters = function () {
+  this.layerManager.clearLayers("cluster");
+};
+
+methods.removeShape = function (layerId) {
+  this.layerManager.removeLayer("shape", layerId);
+};
+
+methods.clearShapes = function () {
+  this.layerManager.clearLayers("shape");
+};
+
+methods.addRectangles = function (lat1, lng1, lat2, lng2, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions) {
+  var df = new _dataframe2["default"]().col("lat1", lat1).col("lng1", lng1).col("lat2", lat2).col("lng2", lng2).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options);
+  addLayers(this, "shape", df, function (df, i) {
+    if (_jquery2["default"].isNumeric(df.get(i, "lat1")) && _jquery2["default"].isNumeric(df.get(i, "lng1")) && _jquery2["default"].isNumeric(df.get(i, "lat2")) && _jquery2["default"].isNumeric(df.get(i, "lng2"))) {
+      return _leaflet2["default"].rectangle([[df.get(i, "lat1"), df.get(i, "lng1")], [df.get(i, "lat2"), df.get(i, "lng2")]], df.get(i));
+    } else {
+      return null;
+    }
+  });
+};
+/*
+ * @param lat Array of arrays of latitude coordinates for polygons
+ * @param lng Array of arrays of longitude coordinates for polygons
+ */
+
+
+methods.addPolygons = function (polygons, layerId, group, options, popup, popupOptions, label, labelOptions, highlightOptions) {
+  if (polygons.length > 0) {
+    var df = new _dataframe2["default"]().col("shapes", polygons).col("layerId", layerId).col("group", group).col("popup", popup).col("popupOptions", popupOptions).col("label", label).col("labelOptions", labelOptions).col("highlightOptions", highlightOptions).cbind(options);
+    addLayers(this, "shape", df, function (df, i) {
+      // This code used to use L.multiPolygon, but that caused
+      // double-click on a multipolygon to fail to zoom in on the
+      // map. Surprisingly, putting all the rings in a single
+      // polygon seems to still work; complicated multipolygons
+      // are still rendered correctly.
+      var shapes = df.get(i, "shapes").map(function (polygon) {
+        return polygon.map(_htmlwidgets2["default"].dataframeToD3);
+      }).reduce(function (acc, val) {
+        return acc.concat(val);
+      }, []);
+      return _leaflet2["default"].polygon(shapes, df.get(i));
+    });
+  }
+};
+
+methods.addGeoJSON = function (data, layerId, group, style) {
+  // This time, self is actually needed because the callbacks below need
+  // to access both the inner and outer senses of "this"
+  var self = this;
+
+  if (typeof data === "string") {
+    data = JSON.parse(data);
+  }
+
+  var globalStyle = _jquery2["default"].extend({}, style, data.style || {});
+
+  var gjlayer = _leaflet2["default"].geoJson(data, {
+    style: function style(feature) {
+      if (feature.style || feature.properties.style) {
+        return _jquery2["default"].extend({}, globalStyle, feature.style, feature.properties.style);
+      } else {
+        return globalStyle;
+      }
+    },
+    onEachFeature: function onEachFeature(feature, layer) {
+      var extraInfo = {
+        featureId: feature.id,
+        properties: feature.properties
+      };
+      var popup = feature.properties ? feature.properties.popup : null;
+      if (typeof popup !== "undefined" && popup !== null) layer.bindPopup(popup);
+      layer.on("click", mouseHandler(self.id, layerId, group, "geojson_click", extraInfo), this);
+      layer.on("mouseover", mouseHandler(self.id, layerId, group, "geojson_mouseover", extraInfo), this);
+      layer.on("mouseout", mouseHandler(self.id, layerId, group, "geojson_mouseout", extraInfo), this);
+    }
+  });
+
+  this.layerManager.addLayer(gjlayer, "geojson", layerId, group);
+};
+
+methods.removeGeoJSON = function (layerId) {
+  this.layerManager.removeLayer("geojson", layerId);
+};
+
+methods.clearGeoJSON = function () {
+  this.layerManager.clearLayers("geojson");
+};
+
+methods.addTopoJSON = function (data, layerId, group, style) {
+  // This time, self is actually needed because the callbacks below need
+  // to access both the inner and outer senses of "this"
+  var self = this;
+
+  if (typeof data === "string") {
+    data = JSON.parse(data);
+  }
+
+  var globalStyle = _jquery2["default"].extend({}, style, data.style || {});
+
+  var gjlayer = _leaflet2["default"].geoJson(null, {
+    style: function style(feature) {
+      if (feature.style || feature.properties.style) {
+        return _jquery2["default"].extend({}, globalStyle, feature.style, feature.properties.style);
+      } else {
+        return globalStyle;
+      }
+    },
+    onEachFeature: function onEachFeature(feature, layer) {
+      var extraInfo = {
+        featureId: feature.id,
+        properties: feature.properties
+      };
+      var popup = feature.properties.popup;
+      if (typeof popup !== "undefined" && popup !== null) layer.bindPopup(popup);
+      layer.on("click", mouseHandler(self.id, layerId, group, "topojson_click", extraInfo), this);
+      layer.on("mouseover", mouseHandler(self.id, layerId, group, "topojson_mouseover", extraInfo), this);
+      layer.on("mouseout", mouseHandler(self.id, layerId, group, "topojson_mouseout", extraInfo), this);
+    }
+  });
+
+  global.omnivore.topojson.parse(data, null, gjlayer);
+  this.layerManager.addLayer(gjlayer, "topojson", layerId, group);
+};
+
+methods.removeTopoJSON = function (layerId) {
+  this.layerManager.removeLayer("topojson", layerId);
+};
+
+methods.clearTopoJSON = function () {
+  this.layerManager.clearLayers("topojson");
+};
+
+methods.addControl = function (html, position, layerId, classes) {
+  function onAdd(map) {
+    var div = _leaflet2["default"].DomUtil.create("div", classes);
+
+    if (typeof layerId !== "undefined" && layerId !== null) {
+      div.setAttribute("id", layerId);
+    }
+
+    this._div = div; // It's possible for window.Shiny to be true but Shiny.initializeInputs to
+    // not be, when a static leaflet widget is included as part of the shiny
+    // UI directly (not through leafletOutput or uiOutput). In this case we
+    // don't do the normal Shiny stuff as that will all happen when Shiny
+    // itself loads and binds the entire doc.
+
+    if (window.Shiny && _shiny2["default"].initializeInputs) {
+      _shiny2["default"].renderHtml(html, this._div);
+
+      _shiny2["default"].initializeInputs(this._div);
+
+      _shiny2["default"].bindAll(this._div);
+    } else {
+      this._div.innerHTML = html;
+    }
+
+    return this._div;
+  }
+
+  function onRemove(map) {
+    if (window.Shiny && _shiny2["default"].unbindAll) {
+      _shiny2["default"].unbindAll(this._div);
+    }
+  }
+
+  var Control = _leaflet2["default"].Control.extend({
+    options: {
+      position: position
+    },
+    onAdd: onAdd,
+    onRemove: onRemove
+  });
+
+  this.controls.add(new Control(), layerId, html);
+};
+
+methods.addCustomControl = function (control, layerId) {
+  this.controls.add(control, layerId);
+};
+
+methods.removeControl = function (layerId) {
+  this.controls.remove(layerId);
+};
+
+methods.getControl = function (layerId) {
+  this.controls.get(layerId);
+};
+
+methods.clearControls = function () {
+  this.controls.clear();
+};
+
+methods.addLegend = function (options) {
+  var legend = _leaflet2["default"].control({
+    position: options.position
+  });
+
+  var gradSpan;
+
+  legend.onAdd = function (map) {
+    var div = _leaflet2["default"].DomUtil.create("div", options.className),
+        colors = options.colors,
+        labels = options.labels,
+        legendHTML = "";
+
+    if (options.type === "numeric") {
+      // # Formatting constants.
+      var singleBinHeight = 20; // The distance between tick marks, in px
+
+      var vMargin = 8; // If 1st tick mark starts at top of gradient, how
+      // many extra px are needed for the top half of the
+      // 1st label? (ditto for last tick mark/label)
+
+      var tickWidth = 4; // How wide should tick marks be, in px?
+
+      var labelPadding = 6; // How much distance to reserve for tick mark?
+      // (Must be >= tickWidth)
+      // # Derived formatting parameters.
+      // What's the height of a single bin, in percentage (of gradient height)?
+      // It might not just be 1/(n-1), if the gradient extends past the tick
+      // marks (which can be the case for pretty cut points).
+
+      var singleBinPct = (options.extra.p_n - options.extra.p_1) / (labels.length - 1); // Each bin is `singleBinHeight` high. How tall is the gradient?
+
+      var totalHeight = 1 / singleBinPct * singleBinHeight + 1; // How far should the first tick be shifted down, relative to the top
+      // of the gradient?
+
+      var tickOffset = singleBinHeight / singleBinPct * options.extra.p_1;
+      gradSpan = (0, _jquery2["default"])("<span/>").css({
+        "background": "linear-gradient(" + colors + ")",
+        "opacity": options.opacity,
+        "height": totalHeight + "px",
+        "width": "18px",
+        "display": "block",
+        "margin-top": vMargin + "px"
+      });
+      var leftDiv = (0, _jquery2["default"])("<div/>").css("float", "left"),
+          rightDiv = (0, _jquery2["default"])("<div/>").css("float", "left");
+      leftDiv.append(gradSpan);
+      (0, _jquery2["default"])(div).append(leftDiv).append(rightDiv).append((0, _jquery2["default"])("<br>")); // Have to attach the div to the body at this early point, so that the
+      // svg text getComputedTextLength() actually works, below.
+
+      document.body.appendChild(div);
+      var ns = "http://www.w3.org/2000/svg";
+      var svg = document.createElementNS(ns, "svg");
+      rightDiv.append(svg);
+      var g = document.createElementNS(ns, "g");
+      (0, _jquery2["default"])(g).attr("transform", "translate(0, " + vMargin + ")");
+      svg.appendChild(g); // max label width needed to set width of svg, and right-justify text
+
+      var maxLblWidth = 0; // Create tick marks and labels
+
+      _jquery2["default"].each(labels, function (i, label) {
+        var y = tickOffset + i * singleBinHeight + 0.5;
+        var thisLabel = document.createElementNS(ns, "text");
+        (0, _jquery2["default"])(thisLabel).text(labels[i]).attr("y", y).attr("dx", labelPadding).attr("dy", "0.5ex");
+        g.appendChild(thisLabel);
+        maxLblWidth = Math.max(maxLblWidth, thisLabel.getComputedTextLength());
+        var thisTick = document.createElementNS(ns, "line");
+        (0, _jquery2["default"])(thisTick).attr("x1", 0).attr("x2", tickWidth).attr("y1", y).attr("y2", y).attr("stroke-width", 1);
+        g.appendChild(thisTick);
+      }); // Now that we know the max label width, we can right-justify
+
+
+      (0, _jquery2["default"])(svg).find("text").attr("dx", labelPadding + maxLblWidth).attr("text-anchor", "end"); // Final size for <svg>
+
+      (0, _jquery2["default"])(svg).css({
+        width: maxLblWidth + labelPadding + "px",
+        height: totalHeight + vMargin * 2 + "px"
+      });
+
+      if (options.na_color && _jquery2["default"].inArray(options.na_label, labels) < 0) {
+        (0, _jquery2["default"])(div).append("<div><i style=\"" + "background:" + options.na_color + ";opacity:" + options.opacity + ";margin-right:" + labelPadding + "px" + ";\"></i>" + options.na_label + "</div>");
+      }
+    } else {
+      if (options.na_color && _jquery2["default"].inArray(options.na_label, labels) < 0) {
+        colors.push(options.na_color);
+        labels.push(options.na_label);
+      }
+
+      for (var i = 0; i < colors.length; i++) {
+        legendHTML += "<i style=\"background:" + colors[i] + ";opacity:" + options.opacity + "\"></i> " + labels[i] + "<br>";
+      }
+
+      div.innerHTML = legendHTML;
+    }
+
+    if (options.title) (0, _jquery2["default"])(div).prepend("<div style=\"margin-bottom:3px\"><strong>" + options.title + "</strong></div>");
+    return div;
+  };
+
+  if (options.group) {
+    // Auto generate a layerID if not provided
+    if (!options.layerId) {
+      options.layerId = _leaflet2["default"].Util.stamp(legend);
+    }
+
+    var map = this;
+    map.on("overlayadd", function (e) {
+      if (e.name === options.group) {
+        map.controls.add(legend, options.layerId);
+      }
+    });
+    map.on("overlayremove", function (e) {
+      if (e.name === options.group) {
+        map.controls.remove(options.layerId);
+      }
+    });
+    map.on("groupadd", function (e) {
+      if (e.name === options.group) {
+        map.controls.add(legend, options.layerId);
+      }
+    });
+    map.on("groupremove", function (e) {
+      if (e.name === options.group) {
+        map.controls.remove(options.layerId);
+      }
+    });
+  }
+
+  this.controls.add(legend, options.layerId);
+};
+
+methods.addLayersControl = function (baseGroups, overlayGroups, options) {
+  var _this4 = this;
+
+  // Only allow one layers control at a time
+  methods.removeLayersControl.call(this);
+  var firstLayer = true;
+  var base = {};
+
+  _jquery2["default"].each((0, _util.asArray)(baseGroups), function (i, g) {
+    var layer = _this4.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      base[g] = layer; // Check if >1 base layers are visible; if so, hide all but the first one
+
+      if (_this4.hasLayer(layer)) {
+        if (firstLayer) {
+          firstLayer = false;
+        } else {
+          _this4.removeLayer(layer);
+        }
+      }
+    }
+  });
+
+  var overlay = {};
+
+  _jquery2["default"].each((0, _util.asArray)(overlayGroups), function (i, g) {
+    var layer = _this4.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      overlay[g] = layer;
+    }
+  });
+
+  this.currentLayersControl = _leaflet2["default"].control.layers(base, overlay, options);
+  this.addControl(this.currentLayersControl);
+};
+
+methods.removeLayersControl = function () {
+  if (this.currentLayersControl) {
+    this.removeControl(this.currentLayersControl);
+    this.currentLayersControl = null;
+  }
+};
+
+methods.addScaleBar = function (options) {
+  // Only allow one scale bar at a time
+  methods.removeScaleBar.call(this);
+
+  var scaleBar = _leaflet2["default"].control.scale(options).addTo(this);
+
+  this.currentScaleBar = scaleBar;
+};
+
+methods.removeScaleBar = function () {
+  if (this.currentScaleBar) {
+    this.currentScaleBar.remove();
+    this.currentScaleBar = null;
+  }
+};
+
+methods.hideGroup = function (group) {
+  var _this5 = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, g) {
+    var layer = _this5.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      _this5.removeLayer(layer);
+    }
+  });
+};
+
+methods.showGroup = function (group) {
+  var _this6 = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, g) {
+    var layer = _this6.layerManager.getLayerGroup(g, true);
+
+    if (layer) {
+      _this6.addLayer(layer);
+    }
+  });
+};
+
+function setupShowHideGroupsOnZoom(map) {
+  if (map.leafletr._hasInitializedShowHideGroups) {
+    return;
+  }
+
+  map.leafletr._hasInitializedShowHideGroups = true;
+
+  function setVisibility(layer, visible, group) {
+    if (visible !== map.hasLayer(layer)) {
+      if (visible) {
+        map.addLayer(layer);
+        map.fire("groupadd", {
+          "name": group,
+          "layer": layer
+        });
+      } else {
+        map.removeLayer(layer);
+        map.fire("groupremove", {
+          "name": group,
+          "layer": layer
+        });
+      }
+    }
+  }
+
+  function showHideGroupsOnZoom() {
+    if (!map.layerManager) return;
+    var zoom = map.getZoom();
+    map.layerManager.getAllGroupNames().forEach(function (group) {
+      var layer = map.layerManager.getLayerGroup(group, false);
+
+      if (layer && typeof layer.zoomLevels !== "undefined") {
+        setVisibility(layer, layer.zoomLevels === true || layer.zoomLevels.indexOf(zoom) >= 0, group);
+      }
+    });
+  }
+
+  map.showHideGroupsOnZoom = showHideGroupsOnZoom;
+  map.on("zoomend", showHideGroupsOnZoom);
+}
+
+methods.setGroupOptions = function (group, options) {
+  var _this7 = this;
+
+  _jquery2["default"].each((0, _util.asArray)(group), function (i, g) {
+    var layer = _this7.layerManager.getLayerGroup(g, true); // This slightly tortured check is because 0 is a valid value for zoomLevels
+
+
+    if (typeof options.zoomLevels !== "undefined" && options.zoomLevels !== null) {
+      layer.zoomLevels = (0, _util.asArray)(options.zoomLevels);
+    }
+  });
+
+  setupShowHideGroupsOnZoom(this);
+  this.showHideGroupsOnZoom();
+};
+
+methods.addRasterImage = function (uri, bounds, opacity, attribution, layerId, group) {
+  // uri is a data URI containing an image. We want to paint this image as a
+  // layer at (top-left) bounds[0] to (bottom-right) bounds[1].
+  // We can't simply use ImageOverlay, as it uses bilinear scaling which looks
+  // awful as you zoom in (and sometimes shifts positions or disappears).
+  // Instead, we'll use a TileLayer.Canvas to draw pieces of the image.
+  // First, some helper functions.
+  // degree2tile converts latitude, longitude, and zoom to x and y tile
+  // numbers. The tile numbers returned can be non-integral, as there's no
+  // reason to expect that the lat/lng inputs are exactly on the border of two
+  // tiles.
+  //
+  // We'll use this to convert the bounds we got from the server, into coords
+  // in tile-space at a given zoom level. Note that once we do the conversion,
+  // we don't to do any more trigonometry to convert between pixel coordinates
+  // and tile coordinates; the source image pixel coords, destination canvas
+  // pixel coords, and tile coords all can be scaled linearly.
+  function degree2tile(lat, lng, zoom) {
+    // See http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames
+    var latRad = lat * Math.PI / 180;
+    var n = Math.pow(2, zoom);
+    var x = (lng + 180) / 360 * n;
+    var y = (1 - Math.log(Math.tan(latRad) + 1 / Math.cos(latRad)) / Math.PI) / 2 * n;
+    return {
+      x: x,
+      y: y
+    };
+  } // Given a range [from,to) and either one or two numbers, returns true if
+  // there is any overlap between [x,x1) and the range--or if x1 is omitted,
+  // then returns true if x is within [from,to).
+
+
+  function overlap(from, to, x,
+  /* optional */
+  x1) {
+    if (arguments.length == 3) x1 = x;
+    return x < to && x1 >= from;
+  }
+
+  function getCanvasSmoothingProperty(ctx) {
+    var candidates = ["imageSmoothingEnabled", "mozImageSmoothingEnabled", "webkitImageSmoothingEnabled", "msImageSmoothingEnabled"];
+
+    for (var i = 0; i < candidates.length; i++) {
+      if (typeof ctx[candidates[i]] !== "undefined") {
+        return candidates[i];
+      }
+    }
+
+    return null;
+  } // Our general strategy is to:
+  // 1. Load the data URI in an Image() object, so we can get its pixel
+  //    dimensions and the underlying image data. (We could have done this
+  //    by not encoding as PNG at all but just send an array of RGBA values
+  //    from the server, but that would inflate the JSON too much.)
+  // 2. Create a hidden canvas that we use just to extract the image data
+  //    from the Image (using Context2D.getImageData()).
+  // 3. Create a TileLayer.Canvas and add it to the map.
+  // We want to synchronously create and attach the TileLayer.Canvas (so an
+  // immediate call to clearRasters() will be respected, for example), but
+  // Image loads its data asynchronously. Fortunately we can resolve this
+  // by putting TileLayer.Canvas into async mode, which will let us create
+  // and attach the layer but have it wait until the image is loaded before
+  // it actually draws anything.
+  // These are the variables that we will populate once the image is loaded.
+
+
+  var imgData = null; // 1d row-major array, four [0-255] integers per pixel
+
+  var imgDataMipMapper = null;
+  var w = null; // image width in pixels
+
+  var h = null; // image height in pixels
+  // We'll use this array to store callbacks that need to be invoked once
+  // imgData, w, and h have been resolved.
+
+  var imgDataCallbacks = []; // Consumers of imgData, w, and h can call this to be notified when data
+  // is available.
+
+  function getImageData(callback) {
+    if (imgData != null) {
+      // Must not invoke the callback immediately; it's too confusing and
+      // fragile to have a function invoke the callback *either* immediately
+      // or in the future. Better to be consistent here.
+      setTimeout(function () {
+        callback(imgData, w, h, imgDataMipMapper);
+      }, 0);
+    } else {
+      imgDataCallbacks.push(callback);
+    }
+  }
+
+  var img = new Image();
+
+  img.onload = function () {
+    // Save size
+    w = img.width;
+    h = img.height; // Create a dummy canvas to extract the image data
+
+    var imgDataCanvas = document.createElement("canvas");
+    imgDataCanvas.width = w;
+    imgDataCanvas.height = h;
+    imgDataCanvas.style.display = "none";
+    document.body.appendChild(imgDataCanvas);
+    var imgDataCtx = imgDataCanvas.getContext("2d");
+    imgDataCtx.drawImage(img, 0, 0); // Save the image data.
+
+    imgData = imgDataCtx.getImageData(0, 0, w, h).data;
+    imgDataMipMapper = new _mipmapper2["default"](img); // Done with the canvas, remove it from the page so it can be gc'd.
+
+    document.body.removeChild(imgDataCanvas); // Alert any getImageData callers who are waiting.
+
+    for (var i = 0; i < imgDataCallbacks.length; i++) {
+      imgDataCallbacks[i](imgData, w, h, imgDataMipMapper);
+    }
+
+    imgDataCallbacks = [];
+  };
+
+  img.src = uri;
+
+  var canvasTiles = _leaflet2["default"].gridLayer({
+    opacity: opacity,
+    attribution: attribution,
+    detectRetina: true,
+    async: true
+  }); // NOTE: The done() function MUST NOT be invoked until after the current
+  // tick; done() looks in Leaflet's tile cache for the current tile, and
+  // since it's still being constructed, it won't be found.
+
+
+  canvasTiles.createTile = function (tilePoint, done) {
+    var zoom = tilePoint.z;
+
+    var canvas = _leaflet2["default"].DomUtil.create("canvas");
+
+    var error; // setup tile width and height according to the options
+
+    var size = this.getTileSize();
+    canvas.width = size.x;
+    canvas.height = size.y;
+    getImageData(function (imgData, w, h, mipmapper) {
+      try {
+        // The Context2D we'll being drawing onto. It's always 256x256.
+        var ctx = canvas.getContext("2d"); // Convert our image data's top-left and bottom-right locations into
+        // x/y tile coordinates. This is essentially doing a spherical mercator
+        // projection, then multiplying by 2^zoom.
+
+        var topLeft = degree2tile(bounds[0][0], bounds[0][1], zoom);
+        var bottomRight = degree2tile(bounds[1][0], bounds[1][1], zoom); // The size of the image in x/y tile coordinates.
+
+        var extent = {
+          x: bottomRight.x - topLeft.x,
+          y: bottomRight.y - topLeft.y
+        }; // Short circuit if tile is totally disjoint from image.
+
+        if (!overlap(tilePoint.x, tilePoint.x + 1, topLeft.x, bottomRight.x)) return;
+        if (!overlap(tilePoint.y, tilePoint.y + 1, topLeft.y, bottomRight.y)) return; // The linear resolution of the tile we're drawing is always 256px per tile unit.
+        // If the linear resolution (in either direction) of the image is less than 256px
+        // per tile unit, then use nearest neighbor; otherwise, use the canvas's built-in
+        // scaling.
+
+        var imgRes = {
+          x: w / extent.x,
+          y: h / extent.y
+        }; // We can do the actual drawing in one of three ways:
+        // - Call drawImage(). This is easy and fast, and results in smooth
+        //   interpolation (bilinear?). This is what we want when we are
+        //   reducing the image from its native size.
+        // - Call drawImage() with imageSmoothingEnabled=false. This is easy
+        //   and fast and gives us nearest-neighbor interpolation, which is what
+        //   we want when enlarging the image. However, it's unsupported on many
+        //   browsers (including QtWebkit).
+        // - Do a manual nearest-neighbor interpolation. This is what we'll fall
+        //   back to when enlarging, and imageSmoothingEnabled isn't supported.
+        //   In theory it's slower, but still pretty fast on my machine, and the
+        //   results look the same AFAICT.
+        // Is imageSmoothingEnabled supported? If so, we can let canvas do
+        // nearest-neighbor interpolation for us.
+
+        var smoothingProperty = getCanvasSmoothingProperty(ctx);
+
+        if (smoothingProperty || imgRes.x >= 256 && imgRes.y >= 256) {
+          // Use built-in scaling
+          // Turn off anti-aliasing if necessary
+          if (smoothingProperty) {
+            ctx[smoothingProperty] = imgRes.x >= 256 && imgRes.y >= 256;
+          } // Don't necessarily draw with the full-size image; if we're
+          // downscaling, use the mipmapper to get a pre-downscaled image
+          // (see comments on Mipmapper class for why this matters).
+
+
+          mipmapper.getBySize(extent.x * 256, extent.y * 256, function (mip) {
+            // It's possible that the image will go off the edge of the canvas--
+            // that's OK, the canvas should clip appropriately.
+            ctx.drawImage(mip, // Convert abs tile coords to rel tile coords, then *256 to convert
+            // to rel pixel coords
+            (topLeft.x - tilePoint.x) * 256, (topLeft.y - tilePoint.y) * 256, // Always draw the whole thing and let canvas clip; so we can just
+            // convert from size in tile coords straight to pixels
+            extent.x * 256, extent.y * 256);
+          });
+        } else {
+          // Use manual nearest-neighbor interpolation
+          // Calculate the source image pixel coordinates that correspond with
+          // the top-left and bottom-right of this tile. (If the source image
+          // only partially overlaps the tile, we use max/min to limit the
+          // sourceStart/End to only reflect the overlapping portion.)
+          var sourceStart = {
+            x: Math.max(0, Math.floor((tilePoint.x - topLeft.x) * imgRes.x)),
+            y: Math.max(0, Math.floor((tilePoint.y - topLeft.y) * imgRes.y))
+          };
+          var sourceEnd = {
+            x: Math.min(w, Math.ceil((tilePoint.x + 1 - topLeft.x) * imgRes.x)),
+            y: Math.min(h, Math.ceil((tilePoint.y + 1 - topLeft.y) * imgRes.y))
+          }; // The size, in dest pixels, that each source pixel should occupy.
+          // This might be greater or less than 1 (e.g. if x and y resolution
+          // are very different).
+
+          var pixelSize = {
+            x: 256 / imgRes.x,
+            y: 256 / imgRes.y
+          }; // For each pixel in the source image that overlaps the tile...
+
+          for (var row = sourceStart.y; row < sourceEnd.y; row++) {
+            for (var col = sourceStart.x; col < sourceEnd.x; col++) {
+              // ...extract the pixel data...
+              var i = (row * w + col) * 4;
+              var r = imgData[i];
+              var g = imgData[i + 1];
+              var b = imgData[i + 2];
+              var a = imgData[i + 3];
+              ctx.fillStyle = "rgba(" + [r, g, b, a / 255].join(",") + ")"; // ...calculate the corresponding pixel coord in the dest image
+              // where it should be drawn...
+
+              var pixelPos = {
+                x: (col / imgRes.x + topLeft.x - tilePoint.x) * 256,
+                y: (row / imgRes.y + topLeft.y - tilePoint.y) * 256
+              }; // ...and draw a rectangle there.
+
+              ctx.fillRect(Math.round(pixelPos.x), Math.round(pixelPos.y), // Looks crazy, but this is necessary to prevent rounding from
+              // causing overlap between this rect and its neighbors. The
+              // minuend is the location of the next pixel, while the
+              // subtrahend is the position of the current pixel (to turn an
+              // absolute coordinate to a width/height). Yes, I had to look
+              // up minuend and subtrahend.
+              Math.round(pixelPos.x + pixelSize.x) - Math.round(pixelPos.x), Math.round(pixelPos.y + pixelSize.y) - Math.round(pixelPos.y));
+            }
+          }
+        }
+      } catch (e) {
+        error = e;
+      } finally {
+        done(error, canvas);
+      }
+    });
+    return canvas;
+  };
+
+  this.layerManager.addLayer(canvasTiles, "image", layerId, group);
+};
+
+methods.removeImage = function (layerId) {
+  this.layerManager.removeLayer("image", layerId);
+};
+
+methods.clearImages = function () {
+  this.layerManager.clearLayers("image");
+};
+
+methods.addMeasure = function (options) {
+  // if a measureControl already exists, then remove it and
+  //   replace with a new one
+  methods.removeMeasure.call(this);
+  this.measureControl = _leaflet2["default"].control.measure(options);
+  this.addControl(this.measureControl);
+};
+
+methods.removeMeasure = function () {
+  if (this.measureControl) {
+    this.removeControl(this.measureControl);
+    this.measureControl = null;
+  }
+};
+
+methods.addSelect = function (ctGroup) {
+  var _this8 = this;
+
+  methods.removeSelect.call(this);
+  this._selectButton = _leaflet2["default"].easyButton({
+    states: [{
+      stateName: "select-inactive",
+      icon: "ion-qr-scanner",
+      title: "Make a selection",
+      onClick: function onClick(btn, map) {
+        btn.state("select-active");
+        _this8._locationFilter = new _leaflet2["default"].LocationFilter2();
+
+        if (ctGroup) {
+          var selectionHandle = new global.crosstalk.SelectionHandle(ctGroup);
+          selectionHandle.on("change", function (e) {
+            if (e.sender !== selectionHandle) {
+              if (_this8._locationFilter) {
+                _this8._locationFilter.disable();
+
+                btn.state("select-inactive");
+              }
+            }
+          });
+
+          var handler = function handler(e) {
+            _this8.layerManager.brush(_this8._locationFilter.getBounds(), {
+              sender: selectionHandle
+            });
+          };
+
+          _this8._locationFilter.on("enabled", handler);
+
+          _this8._locationFilter.on("change", handler);
+
+          _this8._locationFilter.on("disabled", function () {
+            selectionHandle.close();
+            _this8._locationFilter = null;
+          });
+        }
+
+        _this8._locationFilter.addTo(map);
+      }
+    }, {
+      stateName: "select-active",
+      icon: "ion-close-round",
+      title: "Dismiss selection",
+      onClick: function onClick(btn, map) {
+        btn.state("select-inactive");
+
+        _this8._locationFilter.disable(); // If explicitly dismissed, clear the crosstalk selections
+
+
+        _this8.layerManager.unbrush();
+      }
+    }]
+  });
+
+  this._selectButton.addTo(this);
+};
+
+methods.removeSelect = function () {
+  if (this._locationFilter) {
+    this._locationFilter.disable();
+  }
+
+  if (this._selectButton) {
+    this.removeControl(this._selectButton);
+    this._selectButton = null;
+  }
+};
+
+methods.createMapPane = function (name, zIndex) {
+  this.createPane(name);
+  this.getPane(name).style.zIndex = zIndex;
+};
+
+
+}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"./cluster-layer-store":1,"./crs_utils":3,"./dataframe":4,"./global/htmlwidgets":8,"./global/jquery":9,"./global/leaflet":10,"./global/shiny":12,"./mipmapper":16,"./util":17}],16:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }
+
+function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }
+
+// This class simulates a mipmap, which shrinks images by powers of two. This
+// stepwise reduction results in "pixel-perfect downscaling" (where every
+// pixel of the original image has some contribution to the downscaled image)
+// as opposed to a single-step downscaling which will discard a lot of data
+// (and with sparse images at small scales can give very surprising results).
+var Mipmapper = /*#__PURE__*/function () {
+  function Mipmapper(img) {
+    _classCallCheck(this, Mipmapper);
+
+    this._layers = [img];
+  } // The various functions on this class take a callback function BUT MAY OR MAY
+  // NOT actually behave asynchronously.
+
+
+  _createClass(Mipmapper, [{
+    key: "getBySize",
+    value: function getBySize(desiredWidth, desiredHeight, callback) {
+      var _this = this;
+
+      var i = 0;
+      var lastImg = this._layers[0];
+
+      var testNext = function testNext() {
+        _this.getByIndex(i, function (img) {
+          // If current image is invalid (i.e. too small to be rendered) or
+          // it's smaller than what we wanted, return the last known good image.
+          if (!img || img.width < desiredWidth || img.height < desiredHeight) {
+            callback(lastImg);
+            return;
+          } else {
+            lastImg = img;
+            i++;
+            testNext();
+            return;
+          }
+        });
+      };
+
+      testNext();
+    }
+  }, {
+    key: "getByIndex",
+    value: function getByIndex(i, callback) {
+      var _this2 = this;
+
+      if (this._layers[i]) {
+        callback(this._layers[i]);
+        return;
+      }
+
+      this.getByIndex(i - 1, function (prevImg) {
+        if (!prevImg) {
+          // prevImg could not be calculated (too small, possibly)
+          callback(null);
+          return;
+        }
+
+        if (prevImg.width < 2 || prevImg.height < 2) {
+          // Can't reduce this image any further
+          callback(null);
+          return;
+        } // If reduce ever becomes truly asynchronous, we should stuff a promise or
+        // something into this._layers[i] before calling this.reduce(), to prevent
+        // redundant reduce operations from happening.
+
+
+        _this2.reduce(prevImg, function (reducedImg) {
+          _this2._layers[i] = reducedImg;
+          callback(reducedImg);
+          return;
+        });
+      });
+    }
+  }, {
+    key: "reduce",
+    value: function reduce(img, callback) {
+      var imgDataCanvas = document.createElement("canvas");
+      imgDataCanvas.width = Math.ceil(img.width / 2);
+      imgDataCanvas.height = Math.ceil(img.height / 2);
+      imgDataCanvas.style.display = "none";
+      document.body.appendChild(imgDataCanvas);
+
+      try {
+        var imgDataCtx = imgDataCanvas.getContext("2d");
+        imgDataCtx.drawImage(img, 0, 0, img.width / 2, img.height / 2);
+        callback(imgDataCanvas);
+      } finally {
+        document.body.removeChild(imgDataCanvas);
+      }
+    }
+  }]);
+
+  return Mipmapper;
+}();
+
+exports["default"] = Mipmapper;
+
+
+},{}],17:[function(require,module,exports){
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.log = log;
+exports.recycle = recycle;
+exports.asArray = asArray;
+
+function log(message) {
+  /* eslint-disable no-console */
+  if (console && console.log) console.log(message);
+  /* eslint-enable no-console */
+}
+
+function recycle(values, length, inPlace) {
+  if (length === 0 && !inPlace) return [];
+
+  if (!(values instanceof Array)) {
+    if (inPlace) {
+      throw new Error("Can't do in-place recycling of a non-Array value");
+    }
+
+    values = [values];
+  }
+
+  if (typeof length === "undefined") length = values.length;
+  var dest = inPlace ? values : [];
+  var origLength = values.length;
+
+  while (dest.length < length) {
+    dest.push(values[dest.length % origLength]);
+  }
+
+  if (dest.length > length) {
+    dest.splice(length, dest.length - length);
+  }
+
+  return dest;
+}
+
+function asArray(value) {
+  if (value instanceof Array) return value;else return [value];
+}
+
+
+},{}]},{},[13]);
diff --git a/docs/site_libs/lightable-0.0.1/lightable.css b/docs/site_libs/lightable-0.0.1/lightable.css
new file mode 100644
index 00000000..3be3be90
--- /dev/null
+++ b/docs/site_libs/lightable-0.0.1/lightable.css
@@ -0,0 +1,272 @@
+/*!
+ * lightable v0.0.1
+ * Copyright 2020 Hao Zhu
+ * Licensed under MIT (https://github.com/haozhu233/kableExtra/blob/master/LICENSE)
+ */
+
+.lightable-minimal {
+  border-collapse: separate;
+  border-spacing: 16px 1px;
+  width: 100%;
+  margin-bottom: 10px;
+}
+
+.lightable-minimal td {
+  margin-left: 5px;
+  margin-right: 5px;
+}
+
+.lightable-minimal th {
+  margin-left: 5px;
+  margin-right: 5px;
+}
+
+.lightable-minimal thead tr:last-child th {
+  border-bottom: 2px solid #00000050;
+  empty-cells: hide;
+
+}
+
+.lightable-minimal tbody tr:first-child td {
+  padding-top: 0.5em;
+}
+
+.lightable-minimal.lightable-hover tbody tr:hover {
+  background-color: #f5f5f5;
+}
+
+.lightable-minimal.lightable-striped tbody tr:nth-child(even) {
+  background-color: #f5f5f5;
+}
+
+.lightable-classic {
+  border-top: 0.16em solid #111111;
+  border-bottom: 0.16em solid #111111;
+  width: 100%;
+  margin-bottom: 10px;
+  margin: 10px 5px;
+}
+
+.lightable-classic tfoot tr td {
+  border: 0;
+}
+
+.lightable-classic tfoot tr:first-child td {
+  border-top: 0.14em solid #111111;
+}
+
+.lightable-classic caption {
+  color: #222222;
+}
+
+.lightable-classic td {
+  padding-left: 5px;
+  padding-right: 5px;
+  color: #222222;
+}
+
+.lightable-classic th {
+  padding-left: 5px;
+  padding-right: 5px;
+  font-weight: normal;
+  color: #222222;
+}
+
+.lightable-classic thead tr:last-child th {
+  border-bottom: 0.10em solid #111111;
+}
+
+.lightable-classic.lightable-hover tbody tr:hover {
+  background-color: #F9EEC1;
+}
+
+.lightable-classic.lightable-striped tbody tr:nth-child(even) {
+  background-color: #f5f5f5;
+}
+
+.lightable-classic-2 {
+  border-top: 3px double #111111;
+  border-bottom: 3px double #111111;
+  width: 100%;
+  margin-bottom: 10px;
+}
+
+.lightable-classic-2 tfoot tr td {
+  border: 0;
+}
+
+.lightable-classic-2 tfoot tr:first-child td {
+  border-top: 3px double #111111;
+}
+
+.lightable-classic-2 caption {
+  color: #222222;
+}
+
+.lightable-classic-2 td {
+  padding-left: 5px;
+  padding-right: 5px;
+  color: #222222;
+}
+
+.lightable-classic-2 th {
+  padding-left: 5px;
+  padding-right: 5px;
+  font-weight: normal;
+  color: #222222;
+}
+
+.lightable-classic-2 tbody tr:last-child td {
+  border-bottom: 3px double #111111;
+}
+
+.lightable-classic-2 thead tr:last-child th {
+  border-bottom: 1px solid #111111;
+}
+
+.lightable-classic-2.lightable-hover tbody tr:hover {
+  background-color: #F9EEC1;
+}
+
+.lightable-classic-2.lightable-striped tbody tr:nth-child(even) {
+  background-color: #f5f5f5;
+}
+
+.lightable-material {
+  min-width: 100%;
+  white-space: nowrap;
+  table-layout: fixed;
+  font-family: Roboto, sans-serif;
+  border: 1px solid #EEE;
+  border-collapse: collapse;
+  margin-bottom: 10px;
+}
+
+.lightable-material tfoot tr td {
+  border: 0;
+}
+
+.lightable-material tfoot tr:first-child td {
+  border-top: 1px solid #EEE;
+}
+
+.lightable-material th {
+  height: 56px;
+  padding-left: 16px;
+  padding-right: 16px;
+}
+
+.lightable-material td {
+  height: 52px;
+  padding-left: 16px;
+  padding-right: 16px;
+  border-top: 1px solid #eeeeee;
+}
+
+.lightable-material.lightable-hover tbody tr:hover {
+  background-color: #f5f5f5;
+}
+
+.lightable-material.lightable-striped tbody tr:nth-child(even) {
+  background-color: #f5f5f5;
+}
+
+.lightable-material.lightable-striped tbody td {
+  border: 0;
+}
+
+.lightable-material.lightable-striped thead tr:last-child th {
+  border-bottom: 1px solid #ddd;
+}
+
+.lightable-material-dark {
+  min-width: 100%;
+  white-space: nowrap;
+  table-layout: fixed;
+  font-family: Roboto, sans-serif;
+  border: 1px solid #FFFFFF12;
+  border-collapse: collapse;
+  margin-bottom: 10px;
+  background-color: #363640;
+}
+
+.lightable-material-dark tfoot tr td {
+  border: 0;
+}
+
+.lightable-material-dark tfoot tr:first-child td {
+  border-top: 1px solid #FFFFFF12;
+}
+
+.lightable-material-dark th {
+  height: 56px;
+  padding-left: 16px;
+  padding-right: 16px;
+  color: #FFFFFF60;
+}
+
+.lightable-material-dark td {
+  height: 52px;
+  padding-left: 16px;
+  padding-right: 16px;
+  color: #FFFFFF;
+  border-top: 1px solid #FFFFFF12;
+}
+
+.lightable-material-dark.lightable-hover tbody tr:hover {
+  background-color: #FFFFFF12;
+}
+
+.lightable-material-dark.lightable-striped tbody tr:nth-child(even) {
+  background-color: #FFFFFF12;
+}
+
+.lightable-material-dark.lightable-striped tbody td {
+  border: 0;
+}
+
+.lightable-material-dark.lightable-striped thead tr:last-child th {
+  border-bottom: 1px solid #FFFFFF12;
+}
+
+.lightable-paper {
+  width: 100%;
+  margin-bottom: 10px;
+  color: #444;
+}
+
+.lightable-paper tfoot tr td {
+  border: 0;
+}
+
+.lightable-paper tfoot tr:first-child td {
+  border-top: 1px solid #00000020;
+}
+
+.lightable-paper thead tr:last-child th {
+  color: #666;
+  vertical-align: bottom;
+  border-bottom: 1px solid #00000020;
+  line-height: 1.15em;
+  padding: 10px 5px;
+}
+
+.lightable-paper td {
+  vertical-align: middle;
+  border-bottom: 1px solid #00000010;
+  line-height: 1.15em;
+  padding: 7px 5px;
+}
+
+.lightable-paper.lightable-hover tbody tr:hover {
+  background-color: #F9EEC1;
+}
+
+.lightable-paper.lightable-striped tbody tr:nth-child(even) {
+  background-color: #00000008;
+}
+
+.lightable-paper.lightable-striped tbody td {
+  border: 0;
+}
+