fix #1115. The datapicker is now passed the current locale to localize the datepicker

app/helpers/application_helper.rb

@@ -240,7 +240,7 @@ module ApplicationHelper
   end
 
   def generate_i18n_strings
-    js = ""
+    js = "i18n_locale='#{I18n.locale}';\n"
     js << "i18n = new Array();\n"
     %w{
     shared.toggle_multi       shared.toggle_multi_title
@@ -259,4 +259,10 @@ module ApplicationHelper
     return js
   end
 
+  def javascript_tag_for_i18n_datepicker
+    # do not include en as locale since this the available by default
+    locales_without_en = I18n::available_locales.find_all{|locale| !(locale.to_s == 'en') }
+    return javascript_include_tag(locales_without_en.map{|locale| "i18n/jquery.ui.datepicker-#{locale}.js"})
+  end
+
 end

app/views/layouts/standard.html.erb

@@ -8,6 +8,7 @@
       'jquery.truncator','jquery.jeditable.mini', 'jquery.cookie', 'jquery.blockUI',
       'jquery.form','jquery.ui.autocomplete.selectFirst',
       :cache => 'jquery-cached' %>
+    <%= javascript_tag_for_i18n_datepicker %>
     <%= javascript_include_tag 'hoverIntent','superfish','application',
       'accesskey-hints','niftycube','swfobject',
       :cache => 'tracks-cached' %>

public/javascripts/application.js

@@ -973,6 +973,12 @@ function enable_rich_interaction(){
     $('input.Date').datepicker({
         'dateFormat': dateFormat,
         'firstDay': weekStart,
+        'showButtonPanel': true,
+        'showWeek': true,
+        'changeMonth': true,
+        'changeYear': true,
+        'maxDate': '+5y',
+        'minDate': '-1y',
         'showAnim': 'fold'
     });
 
@@ -1178,6 +1184,8 @@ $(document).ready(function() {
 
     TodoItemsContainer.setup_container_toggles();
 
+    $.datepicker.setDefaults($.datepicker.regional[i18n_locale]);
+
     /* enable page specific behavior */
     $([ 'IntegrationsPage', 'NotesPage', 'ProjectListPage', 'ContextListPage',
         'FeedsPage', 'RecurringTodosPage', 'TodoItems', 'TracksPages',

public/javascripts/i18n/jquery.ui.datepicker-de.js

@@ -0,0 +1,23 @@
+/* German initialisation for the jQuery UI date picker plugin. */
+/* Written by Milian Wolff (mail@milianw.de). */
+jQuery(function($){
+	$.datepicker.regional['de'] = {
+		closeText: 'schließen',
+		prevText: '<zurück',
+		nextText: 'Vor>',
+		currentText: 'heute',
+		monthNames: ['Januar','Februar','März','April','Mai','Juni',
+		'Juli','August','September','Oktober','November','Dezember'],
+		monthNamesShort: ['Jan','Feb','Mär','Apr','Mai','Jun',
+		'Jul','Aug','Sep','Okt','Nov','Dez'],
+		dayNames: ['Sonntag','Montag','Dienstag','Mittwoch','Donnerstag','Freitag','Samstag'],
+		dayNamesShort: ['So','Mo','Di','Mi','Do','Fr','Sa'],
+		dayNamesMin: ['So','Mo','Di','Mi','Do','Fr','Sa'],
+		weekHeader: 'Wo',
+		dateFormat: 'dd.mm.yy',
+		firstDay: 1,
+		isRTL: false,
+		showMonthAfterYear: false,
+		yearSuffix: ''};
+	$.datepicker.setDefaults($.datepicker.regional['de']);
+});

public/javascripts/i18n/jquery.ui.datepicker-nl.js

@@ -0,0 +1,23 @@
+/* Dutch (UTF-8) initialisation for the jQuery UI date picker plugin. */
+/* Written by Mathias Bynens <http://mathiasbynens.be/> */
+jQuery(function($){
+	$.datepicker.regional['nl'] = {
+		closeText: 'Sluiten',
+		prevText: '←',
+		nextText: '→',
+		currentText: 'Vandaag',
+		monthNames: ['januari', 'februari', 'maart', 'april', 'mei', 'juni',
+		'juli', 'augustus', 'september', 'oktober', 'november', 'december'],
+		monthNamesShort: ['jan', 'feb', 'maa', 'apr', 'mei', 'jun',
+		'jul', 'aug', 'sep', 'okt', 'nov', 'dec'],
+		dayNames: ['zondag', 'maandag', 'dinsdag', 'woensdag', 'donderdag', 'vrijdag', 'zaterdag'],
+		dayNamesShort: ['zon', 'maa', 'din', 'woe', 'don', 'vri', 'zat'],
+		dayNamesMin: ['zo', 'ma', 'di', 'wo', 'do', 'vr', 'za'],
+		weekHeader: 'Wk',
+		dateFormat: 'dd-mm-yy',
+		firstDay: 1,
+		isRTL: false,
+		showMonthAfterYear: false,
+		yearSuffix: ''};
+	$.datepicker.setDefaults($.datepicker.regional['nl']);
+});