add remove_timeline(). part of #1010

NAMESPACE

@@ -124,6 +124,7 @@ export(wb_remove_named_region)
 export(wb_remove_row_heights)
 export(wb_remove_slicer)
 export(wb_remove_tables)
+export(wb_remove_timeline)
 export(wb_remove_worksheet)
 export(wb_save)
 export(wb_set_active_sheet)

R/class-workbook-wrappers.R

@@ -508,7 +508,7 @@ wb_add_pivot_table <- function(
 #' * level: the granularity of the slicer (for timeline 0 = year, 1 = quarter, 2 = month)
 #' * show_caption: logical if caption should be shown or not
 #'
-#' Removing slicers works on the spreadsheet level. Therefore all slicers are removed from a worksheet.
+#' Removing works on the spreadsheet level. Therefore all slicers/timelines are removed from a worksheet. At the moment the drawing reference remains on the spreadsheet. Therefore spreadsheet software that does not handle slicers/timelines will still show the drawing.
 #'
 #' @param wb A Workbook object containing a worksheet.
 #' @param x A `data.frame` that inherits the [`wb_data`][wb_data()] class.
@@ -636,6 +636,18 @@ wb_add_timeline <- function(
 
 }
 
+#' @rdname wb_add_slicer
+#' @export
+wb_remove_timeline <- function(
+    wb,
+    sheet       = current_sheet()
+) {
+  assert_workbook(wb)
+  wb$clone()$remove_timeline(
+    sheet       = sheet
+  )
+}
+
 #' Add a formula to a cell range in a worksheet
 #'
 #' This function can be used to add a formula to a worksheet.

R/class-workbook.R

@@ -2113,19 +2113,21 @@ wbWorkbook <- R6::R6Class(
 
       # without choose: filterType = unknown
       timeline_cache <- read_xml(sprintf(
-        '<timelineCacheDefinition xmlns="http://schemas.microsoft.com/office/spreadsheetml/2010/11/main" xmlns:x15="http://schemas.microsoft.com/office/spreadsheetml/2010/11/main" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:xr10="http://schemas.microsoft.com/office/spreadsheetml/2016/revision10" mc:Ignorable="xr10" name="NativeTimeline_%s" xr10:uid="{7CE32DD1-8A45-FD42-8E6D-FD9376CAC325}" sourceName="%s">
+        '<timelineCacheDefinition xmlns="http://schemas.microsoft.com/office/spreadsheetml/2010/11/main" xmlns:x15="http://schemas.microsoft.com/office/spreadsheetml/2010/11/main" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:xr10="http://schemas.microsoft.com/office/spreadsheetml/2016/revision10" mc:Ignorable="xr10" name="NativeTimeline_%s" xr10:uid="%s" sourceName="%s">
           <pivotTables>
             <pivotTable tabId="%s" name="%s" />
           </pivotTables>
-          <state minimalRefreshVersion="6" lastRefreshVersion="6" pivotCacheId="1" filterType="dateBetween">
+          <state minimalRefreshVersion="6" lastRefreshVersion="6" pivotCacheId="%s" filterType="dateBetween">
             %s
             %s
           </state>
         </timelineCacheDefinition>',
         uni_name,
+        st_guid(),
         timeline,
         sheet,
         pivot_table,
+        cid,
         selection_xml,
         bounds_xml
       ), pointer = FALSE)
@@ -2344,6 +2346,48 @@ wbWorkbook <- R6::R6Class(
       invisible(self)
     },
 
+    #' @description add pivot table
+    #' @return The `wbWorkbook` object
+    remove_timeline = function(sheet = current_sheet()) {
+      sheet <- private$get_sheet_index(sheet)
+
+      # get indices
+      timeline_id       <- self$worksheets[[sheet]]$relships$timeline
+
+      # skip if nothing to do
+      if (identical(timeline_id, integer())) return(invisible(self))
+
+      cache_names       <- unname(sapply(xml_attr(self$timelines[timeline_id], "timelines", "timeline"), "[", "cache"))
+      timeline_names    <- unname(sapply(xml_attr(self$timelineCaches, "timelineCacheDefinition"), "[", "name"))
+      timeline_cache_id <- which(cache_names %in% timeline_names)
+
+      # strings to grep
+      timeline_xml <- sprintf("timelines/timeline%s.xml", timeline_id)
+      caches_xml   <- sprintf("timelineCaches/timelineCache%s.xml", timeline_cache_id)
+
+      # empty timelines
+      self$timelines[timeline_id]                <- ""
+      # empty timelineCache
+      self$timelineCaches[timeline_cache_id]     <- ""
+
+      # remove timeline cache relship
+      self$worksheets[[sheet]]$relships$timeline <- integer()
+      # remove worksheet relationship
+      self$worksheets_rels[[sheet]]              <- self$worksheets_rels[[sheet]][!grepl(timeline_xml, self$worksheets_rels[[sheet]])]
+      # remove "x15:timelineRefs"
+      is_ext_x15 <- grepl("xmlns:x15", self$worksheets[[sheet]]$extLst)
+      extLst     <- xml_rm_child(self$worksheets[[sheet]]$extLst[is_ext_x15], xml_child = "x15:timelineRefs")
+      self$worksheets[[sheet]]$extLst[is_ext_x15] <- extLst
+
+      # clear workbook.xml.rels
+      self$workbook.xml.rels                     <- self$workbook.xml.rels[!grepl(paste0(caches_xml, collapse = "|"), self$workbook.xml.rels)]
+
+      # clear Content_Types
+      self$Content_Types                         <- self$Content_Types[!grepl(paste0(c(timeline_xml, caches_xml), collapse = "|"), self$Content_Types)]
+
+      invisible(self)
+    },
+
     #' @description Add formula
     #' @param x x
     #' @param start_col startCol
@@ -2726,15 +2770,16 @@ wbWorkbook <- R6::R6Class(
         timelinesDir      <- dir_create(tmpDir, "xl", "timelines")
         timelineCachesDir <- dir_create(tmpDir, "xl", "timelineCaches")
 
-        timeline <- self$timelines[self$timelines != ""]
-        for (i in seq_along(timeline)) {
+        timeline_id <- which(self$timelines != "")
+        for (i in timeline_id) {
           write_file(
-            body = timeline[i],
+            body = self$timelines[i],
             fl = file.path(timelinesDir, sprintf("timeline%s.xml", i))
           )
         }
 
-        for (i in seq_along(self$timelineCaches)) {
+        caches_id <- which(self$timelineCaches != "")
+        for (i in caches_id) {
           write_file(
             body = self$timelineCaches[[i]],
             fl = file.path(timelineCachesDir, sprintf("timelineCache%s.xml", i))

inst/WORDLIST

@@ -50,6 +50,8 @@ SubtotalRow
 SuperA
 SuperB
 Textbox
+TimelineStyleDark
+TimelineStyleLight
 TotalCell
 TrafficLights
 VARP

tests/testthat/test-class-workbook-wrappers.R

@@ -420,6 +420,11 @@ test_that("wb_add_timeline() is a wrapper", {
   expect_wrapper("add_timeline", wb = wb, params = list(x = df, timeline = "date", pivot_table = "pivot1"))
 })
 
+test_that("wb_remove_timeline() is a wrapper", {
+  wb <- wb_workbook()$add_worksheet()
+  expect_wrapper("remove_timeline", wb = wb)
+})
+
 test_that("wb_add_formula() is a wrapper", {
   wb <- wb_workbook()$add_worksheet(1)
   expect_wrapper("add_formula",    wb = wb, params = list(sheet = 1, x = "=TODAY()"))

tests/testthat/test-write.R

@@ -692,6 +692,98 @@ test_that("removing slicers works", {
 
 })
 
+test_that("removing timelines works", {
+
+  ### prepare data
+  df <- data.frame(
+    AirPassengers = c(AirPassengers),
+    time = seq(from = as.Date("1949-01-01"), to = as.Date("1960-12-01"), by = "month"),
+    letters = letters[1:4]
+  )
+
+  ### create workbook
+  wb <- wb_workbook()$
+    add_worksheet("pivot")$
+    add_worksheet("pivot2")$
+    add_worksheet("data")$
+    add_data(x = df)
+
+  ### get pivot table data source
+  df <- wb_data(wb, sheet = "data")
+
+  ### first sheet
+  # create pivot table
+  wb$add_pivot_table(
+    df,
+    sheet = "pivot",
+    rows = "time",
+    cols = "letters",
+    data = "AirPassengers",
+    pivot_table = "airpassengers",
+    params = list(
+      compact = FALSE, outline = FALSE, compact_data = FALSE,
+      row_grand_totals = FALSE, col_grand_totals = FALSE)
+  )
+
+  # add slicer
+  wb$add_slicer(
+    df,
+    dims = "E1:I7",
+    sheet = "pivot",
+    slicer = "letters",
+    pivot_table = "airpassengers"
+  )
+
+  # add timeline
+  wb$add_timeline(
+    df,
+    dims = "E9:I14",
+    sheet = "pivot",
+    timeline = "time",
+    pivot_table = "airpassengers"
+  )
+
+  ### second sheet
+  # create pivot table
+  wb$add_pivot_table(
+    df,
+    sheet = "pivot2",
+    rows = "time",
+    cols = "letters",
+    data = "AirPassengers",
+    pivot_table = "airpassengers2",
+    params = list(
+      compact = FALSE, outline = FALSE, compact_data = FALSE,
+      row_grand_totals = FALSE, col_grand_totals = FALSE)
+  )
+
+  # add slicer
+  wb$add_slicer(
+    df,
+    dims = "E1:I7",
+    sheet = "pivot2",
+    slicer = "letters",
+    pivot_table = "airpassengers2",
+    params = list(choose = c(letters = 'x %in% c("a", "b")'))
+  )
+
+  # add timeline
+  wb$add_timeline(
+    df,
+    dims = "E9:I14",
+    sheet = "pivot2",
+    timeline = "time",
+    pivot_table = "airpassengers2"
+  )
+
+  ### remove slicer
+  wb$remove_timeline(sheet = "pivot")
+
+  temp <- temp_xlsx()
+  expect_silent(wb$save(temp)) # no warning, all files written as expected
+
+})
+
 test_that("writing na.strings = NULL works", {
 
   # write na.strings = na_strings()