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admin.php
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<?php
/**
* Time Zone plugin admin page
*/
/**
* Display time zone configuration page
*/
function yourls_tzp_admin_page() {
// Check if a form was submitted
if( isset( $_POST['time_zone'] ) ) {
// Check nonce and process form
yourls_verify_nonce( 'time_zone_config' );
$options = yourls_tzp_config_update_settings();
echo yourls_notice_box('Timezone settings updated');
} else {
$options = (array)yourls_get_option( 'timezone' );
}
$user_time_zone = yourls_tzp_get_value($options, 'time_zone', 'UTC');
$user_time_zone_display = $user_time_zone;
if (substr($user_time_zone, 0, 1) == '+' or substr($user_time_zone, 0, 1) == '-') {
$user_time_zone_display = 'UTC' . $user_time_zone_display;
}
$user_date_format = yourls_tzp_get_value($options, 'date_format', 'Y/m/d');
$user_date_format_custom = yourls_tzp_get_value($options, 'date_format_custom', 'Y/m/d');
$user_time_format = yourls_tzp_get_value($options, 'time_format', 'H:i');
$user_time_format_custom = yourls_tzp_get_value($options, 'time_format_custom', 'H:i');
// Draw page
yourls_tzp_js_css();
print '<h2>Time Zone Configuration</h2>
<p>This plugin allows to specify a time zone and to format time/date display</p>';
if( defined('YOURLS_HOURS_OFFSET') ) {
print '<p><strong>Note:</strong> you have <code>YOURLS_HOURS_OFFSET</code> defined in your config.php. This plugin will override this setting.</p>';
}
print '<form method="post">
<input type="hidden" name="nonce" value="' . yourls_create_nonce( 'time_zone_config' ) . '" />';
// Time zones drop down
print '<h3>Time zone: </h3>
<div class="settings">
<p>Choose a city near your location, in the same timezone as you, or a UTC time offset.</p>';
yourls_tzp_tz_dropdown( $user_time_zone );
print '<p>Universal time (<code>UTC</code>) time is: <tt id="utc_time">' . date( 'Y-m-d H:i:s', yourls_tzp_timezoned_timestamp( time(), 'UTC' ) ). '</tt></p>';
if($user_time_zone) {
print "<p>Time in <code>$user_time_zone_display</code> is: <tt id='local_time'>" . date( 'Y-m-d H:i:s', yourls_tzp_timezoned_timestamp( time(), $user_time_zone) ) . '</tt></p>';
}
print '</div>';
// Display radio button for date format
$choices = array(
'j F Y', // 13 April 2020
'F j, Y', // May 10, 2020
'd/m/Y', // 20/10/2020
'm/d/Y', // 10/20/2020
'Y/m/d', // 2020/10/20
);
yourls_tzp_format_radio( 'Date Format', 'date_format', $choices, $user_time_zone, $user_date_format, $user_date_format_custom );
// Display radio button for date format
$choices = array(
'H:i', // 21:23
'g:i a', // 9:23 pm
'g:i A', // 9:23 PM
);
yourls_tzp_format_radio( 'Time Format', 'time_format', $choices, $user_time_zone, $user_time_format, $user_time_format_custom );
print '<p><input type="submit" class="button primary" value="Update configuration" /></p>
</form>
<p><strong>Note:</strong> custom formats need a PHP <code><a href="https://php.net/date">date()</a></code> string.';
}
/**
* Output CSS & JS
*/
function yourls_tzp_js_css() {
$plugin_url = yourls_plugin_url( __DIR__ );
print <<<JSCSS
<link href='$plugin_url/assets/select2.min.css' rel='stylesheet' />
<script src='$plugin_url/assets/select2.min.js'></script>
<script src='$plugin_url/assets/php-date-formatter.min.js'></script>
<script>
jQuery( document ).ready(function() {
// auto select radio when custom input field is focused
$('.custom :input').focusin(function() {
$(this).prev().click();
});
// easy selector on timezones
$('#time_zone').select2({
templateResult: format_region,
placeholder:'Choose a time zone'
});
// Real time date format preview
$(".custom_format").on("keyup", function() {
format_preview($(this).attr('id'), $(this).val());
});
// Click a radio to change custom format accordingly
$('.radio_format').change(
function(){
if (this.checked) {
name = $(this).attr('name');
value = $(this).attr('value');
$('#'+name+'_custom_value').val(value).trigger($.Event("keyup"));
}
}
);
})
// Real time preview of date/time format
function format_preview(id, value) {
if($('#local_time')) {
time = $('#local_time').text();
} else {
time = $('#utc_time').text();
}
id = id.replace('_custom_value', '');
fmt = new DateFormatter();
parse = fmt.parseDate(time, 'Y-m-d H:i:s');
format = fmt.formatDate(parse, value );
$('#tz_test_' + id).text(format);
}
// modify dropdown list
function format_region(item) {
if (!item.id) {
return item.text;
}
var text = item.text.split('/');
var region=text[0];
var city=text[1];
return $('<span class="region">'+region+'</span> '+city+'</span>');
}
</script>
<style>
body {
text-align:left;
}
h3 {
border-bottom:1px solid #ccc;
}
div.settings {
padding-bottom:1em;
}
.region{
color:#aaa;
font-style:italic;
}
</style>
JSCSS;
}
/**
* Draw the time zone drop down
*
* @param string $user_time_zone Timezone to be marked as "selected" in the dropdown
*/
function yourls_tzp_tz_dropdown( $user_time_zone ) {
// Continent list
$continent = array(
'Africa' => DateTimeZone::AFRICA,
'America' => DateTimeZone::AMERICA,
'Antarctica' => DateTimeZone::ANTARCTICA,
'Asia' => DateTimeZone::ASIA,
'Atlantic' => DateTimeZone::ATLANTIC,
'Australia' => DateTimeZone::AUSTRALIA,
'Europe' => DateTimeZone::EUROPE,
'Indian' => DateTimeZone::INDIAN,
'Pacific' => DateTimeZone::PACIFIC,
);
// Timezones per continents
$timezones = array();
foreach ($continent as $name => $mask) {
$zones = DateTimeZone::listIdentifiers($mask);
foreach($zones as $timezone) {
// Remove region name
$timezones[$name][$timezone] = substr($timezone, strlen($name) +1);
}
}
// Manual UTC offset
$offset_range = array(
'-12', '-11:30', '-11', '-10:30', '-10', '-9.5', '-9',
'-8:30', '-8', '-7:30', '-7', '-6:30', '-6', '-5:30',
'-5', '-4:30', '-4', '-3:30', '-3', '-2:30', '-2',
'-1:30', '-1', '-0:30', 'UTC', '+0:30', '+1', '+1:30',
'+2', '+2:30', '+3', '+3:30', '+4', '+4:30', '+5',
'+5:30', '+5:45', '+6', '+6:30', '+7', '+7:30', '+8',
'+8:30', '+8:45', '+9', '+9:30', '+10', '+10:30', '+11',
'+11:30', '+12', '+12:45', '+13', '+13:45', '+14'
);
foreach( $offset_range as $offset_name ) {
$offset_value = $offset_name;
$offset_name = str_replace( array( '.25', '.5', '.75' ), array( ':15', ':30', ':45' ), $offset_name );
if ($offset_name != 'UTC') {
$offset_name = 'UTC' . $offset_name;
}
// $offset_value = 'UTC' . $offset_value;
$timezones['UTC'][$offset_value] = $offset_name;
}
print '<select name="time_zone" id="time_zone">';
print '<option value="" dzisabled="dzisabled">Choose a time zone</option>';
foreach($timezones as $region => $list) {
print '<optgroup label="' . $region . '">' . "\n";
foreach($list as $timezone => $name) {
print '<option value="' . $timezone . '" ' . (($timezone == $user_time_zone) ? "selected='selected'":"") . '>' . "$region/$name" . '</option>' . "\n";
}
print '<optgroup>' . "\n";
}
print '</select>';
}
/**
* Output radio button list
*
* @param string $title Dropdown title
* @param string $input_name Dropdown 'radio' name
* @param array $formats List of available choices, to which 'custom' will be appended
* @param string $tz Time zone
* @param string $selected Checked radio value
* @param string $custom Custom format value
*/
function yourls_tzp_format_radio( $title, $input_name, $formats, $tz, $selected, $custom ) {
print "<h3>$title:</h3>
<div class='settings'>";
foreach ($formats as $format) {
$checked = ( $format === $selected ) ? 'checked="checked"' : '' ;
print "<p><label><input type='radio' class='radio_format radio_$input_name' name='$input_name' value='$format' $checked >";
print yourls_date_i18n( $format, yourls_tzp_timezoned_timestamp( time(), $tz ), true );
print "</label></p>\n";
}
$checked = ( 'custom' === $selected ) ? 'checked="checked"' : '' ;
$preview = date( $custom, yourls_tzp_timezoned_timestamp( time(), $tz ) );
print "<label class='custom'><input type='radio' id='${input_name}_custom' name='$input_name' value='custom' $checked >
Custom: <input type='text' class='text custom_format' id='${input_name}_custom_value' name='${input_name}_custom_value' value='$custom' />
<span class='tz_test' id='tz_test_$input_name'>$preview</span>
</label>\n";
print '</div>';
}
/**
* Update time zone in database
*/
function yourls_tzp_config_update_settings() {
$settings = array(
'time_zone' => yourls_tzp_get_value($_POST, 'time_zone', 'UTC'),
'date_format' => yourls_tzp_get_value($_POST, 'date_format', 'Y/m/d'),
'date_format_custom' => yourls_tzp_get_value($_POST, 'date_format_custom_value', 'Y/m/d'),
'time_format' => yourls_tzp_get_value($_POST, 'time_format', 'H:i'),
'time_format_custom' => yourls_tzp_get_value($_POST, 'time_format_custom_value', 'H:i'),
);
yourls_update_option( 'timezone', $settings );
return $settings;
}