Adding culture selector to Admin theme

src/Orchard.Web/Themes/TheAdmin/Styles/site.css

@@ -212,7 +212,7 @@ form.link button:hover, button.link:hover {
 ol.decimal {list-style:decimal inside; margin:12px 0;}
 ul.disc {list-style:disc inside; margin:12px 0;}
 
-/* Header - Branding and Login  
+/* Header - Branding, Login and Culture Selection
 ***************************************************************/
 #header {
     height:50px;
@@ -226,6 +226,10 @@ ul.disc {list-style:disc inside; margin:12px 0;}
     height:50px;
     float:left;
 }
+#culture-selection {
+    float: right;
+    margin: 10px 20px 0 0;
+}
 #header #app {
     float:left;
     font-size:2.4em;

src/Orchard.Web/Themes/TheAdmin/Views/Layout.cshtml

@@ -1,4 +1,5 @@
 @model dynamic
+@using Orchard.Environment.Descriptor.Models
 @using Orchard.Security;
 @using Orchard.DisplayManagement.Descriptors;
 @using Orchard.UI.Resources;
@@ -27,6 +28,10 @@
     Model.Header.Add(Display.Header());
 
     Model.Header.Add(Display.User(CurrentUser: WorkContext.CurrentUser));
+
+    var shellDescriptor = WorkContext.Resolve<ShellDescriptor>();
+    if (shellDescriptor.Features.Any(x => x.Name == "Orchard.Localization.CutlureSelector")) { Model.Header.Add(Display.UICultureSelector()); }
+    
     Model.Footer.Add(Display.OrchardVersion());
 
     if (Model.Title != null) {

src/Orchard.Web/Themes/TheAdmin/Views/UICultureSelector.cshtml

@@ -0,0 +1,32 @@
+@using System.Globalization
+@using Orchard.Localization.Services
+@{
+    var currentCulture = WorkContext.CurrentCulture;
+    var supportedCultures = WorkContext.Resolve<ICultureManager>().ListCultures();
+}
+
+@if (supportedCultures.Count() > 1) {
+<div id="culture-selection">
+    <select>
+        @foreach (var supportedCulure in supportedCultures) {
+            var cultureInfo = CultureInfo.GetCultureInfo(supportedCulure);
+            var url = Url.Action("SetCulture", "CutlureSelector", new { area = "Orchard.Localization", culture = supportedCulure, returnUrl = Html.ViewContext.HttpContext.Request.RawUrl });
+
+            <option @if (supportedCulure.Equals(currentCulture)) { <text> selected="selected" </text>  } value="@url">
+                @cultureInfo.DisplayName
+            </option>
+        }
+    </select>
+</div>
+}
+@using (Script.Foot()) {
+<script type="text/javascript">
+//<![CDATA[
+   (function ($) {
+       $("#culture-selection").change(function (e) {
+           window.location = $("#culture-selection > select > option:selected")[0].value;
+       });
+   })(jQuery);
+//]]>
+</script>
+}

src/Orchard.Web/Themes/Themes.csproj

@@ -169,6 +169,9 @@
   <ItemGroup>
     <Content Include="TheAdmin\Views\ErrorPage.cshtml" />
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="TheAdmin\Views\UICultureSelector.cshtml" />
+  </ItemGroup>
   <PropertyGroup>
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
     <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>