add language to startup wizard

dashboard-ui/scripts/wizardstartpage.js

@@ -1,6 +1,59 @@
-var WizardStartPage = {
+(function (window, $) {
 
-    gotoNextPage: function () {
-        Dashboard.navigate('wizarduser.html');
+    function loadPage(page, config, languageOptions) {
+
+        $('#selectLocalizationLanguage', page).html(languageOptions.map(function (l) {
+
+            return '<option value="' + l.Value + '">' + l.Name + '</option>';
+
+        })).val(config.UICulture).selectmenu('refresh');
+
+        Dashboard.hideLoadingMsg();
     }
-};
+
+    function save(page) {
+
+        Dashboard.showLoadingMsg();
+
+        ApiClient.getServerConfiguration().done(function (config) {
+
+            config.UICulture = $('#selectLocalizationLanguage', page).val();
+
+            ApiClient.updateServerConfiguration(config).done(function (result) {
+
+                Dashboard.navigate('wizarduser.html');
+
+            });
+        });
+
+    }
+
+    $(document).on('pageshow', "#wizardStartPage", function () {
+
+        Dashboard.showLoadingMsg();
+
+        var page = this;
+
+        var promise1 = ApiClient.getServerConfiguration();
+
+        var promise2 = $.getJSON(ApiClient.getUrl("Localization/Options"));
+
+        $.when(promise1, promise2).done(function (response1, response2) {
+
+            loadPage(page, response1[0], response2[0]);
+
+        });
+
+    });
+
+    window.WizardStartPage = {
+
+        onSubmit: function () {
+
+            save($(this).parents('.page'));
+
+            return false;
+        }
+    };
+
+})(window, jQuery);