Add possibility to use localized date format as datepicker input placeholder

Need to be supported by skin. Elastic support is comming.

plugins/jqueryui/jqueryui.php

@@ -65,7 +65,7 @@ class jqueryui extends rcube_plugin
         }
 
         // Date format for datepicker
-        $date_format = $rcmail->config->get('date_format', 'Y-m-d');
+        $date_format = $date_format_localized = $rcmail->config->get('date_format', 'Y-m-d');
         $date_format = strtr($date_format, array(
                 'y' => 'y',
                 'Y' => 'yy',
@@ -74,7 +74,19 @@ class jqueryui extends rcube_plugin
                 'd' => 'dd',
                 'j' => 'd',
         ));
+
+        $replaces = array('Y' => 'yyyy', 'y' => 'yy', 'm' => 'mm', 'd' => 'dd', 'j' => 'd', 'n' => 'm');
+
+        foreach (array_keys($replaces) as $key) {
+            if ($rcmail->text_exists("dateformat$key")) {
+                $replaces[$key] = $rcmail->gettext("dateformat$key");
+            }
+        }
+
+        $date_format_localized = strtr($date_format_localized, $replaces);
+
         $rcmail->output->set_env('date_format', $date_format);
+        $rcmail->output->set_env('date_format_localized', $date_format_localized);
     }
 
     public static function miniColors()

program/js/app.js

@@ -6341,7 +6341,6 @@ function rcube_webmail()
         yearRange: '-120:+10',
         showOtherMonths: true,
         selectOtherMonths: true
-//        onSelect: function(dateText) { $(this).focus().val(dateText); }
       });
       $('input.datepicker').datepicker();
     }
@@ -6656,6 +6655,8 @@ function rcube_webmail()
           if (!colprop.count) colprop.count = 0;
           if (++colprop.count == colprop.limit && colprop.limit)
             $(menu).children('option[value="' + col + '"]').prop('disabled', true);
+
+          this.triggerEvent('insert-edit-field', input);
         }
       }
     }

program/localization/en_US/labels.inc

@@ -630,6 +630,13 @@ $labels['license'] = 'License';
 $labels['support'] = 'Get support';
 $labels['savedsearches'] = 'Saved searches';
 
+$labels['dateformatY'] = 'YYYY';
+$labels['dateformaty'] = 'YY';
+$labels['dateformatm'] = 'MM';
+$labels['dateformatd'] = 'DD';
+$labels['dateformatj'] = 'D';
+$labels['dateformatn'] = 'M';
+
 // units
 $labels['B'] = 'B';
 $labels['KB'] = 'KB';

program/steps/addressbook/search.inc

@@ -302,7 +302,7 @@ function rcmail_contact_search_form($attrib)
             $label    = isset($colprop['label']) ? $colprop['label'] : $RCMAIL->gettext($col);
             $category = $colprop['category'] ?: 'other';
 
-            // load jquery UI datepicker for date fields 
+            // load jquery UI datepicker for date fields
             if ($colprop['type'] == 'date') {
                 $colprop['class'] .= ($colprop['class'] ? ' ' : '') . 'datepicker';
             }