Converting module and themes entries to shapes on module and theme projects. Adding recently updated notifications. Fixing small issue in Layout.Title.

--HG--
branch : dev
rename : src/Orchard.Web/Modules/Orchard.Modules/ViewModels/Module.cs => src/Orchard.Web/Modules/Orchard.Modules/Models/ModuleEntry.cs
rename : src/Orchard.Web/Modules/Orchard.Modules/ViewModels/ModuleFeature.cs => src/Orchard.Web/Modules/Orchard.Modules/Models/ModuleFeature.cs

src/Orchard.Web/Core/Contents/Views/Content.cshtml

@@ -1,6 +1,9 @@
 @using Orchard.Utility.Extensions;
 @{
-    Layout.Title = Model.Title;
+    if (Model.Title != null) {
+        Layout.Title = Model.Title;
+    }
+    
     var contentTypeClassName = ((string)Model.ContentItem.ContentType).HtmlClassify();
 }
 <article class="content-item @contentTypeClassName">

src/Orchard.Web/Modules/Orchard.Modules/Controllers/AdminController.cs

@@ -9,6 +9,8 @@ using Orchard.Environment.Extensions.Models;
 using Orchard.Environment.Features;
 using Orchard.Localization;
 using Orchard.Logging;
+using Orchard.Modules.Events;
+using Orchard.Modules.Models;
 using Orchard.Modules.Services;
 using Orchard.Modules.ViewModels;
 using Orchard.Reports.Services;
@@ -18,6 +20,7 @@ using Orchard.Utility.Extensions;
 
 namespace Orchard.Modules.Controllers {
     public class AdminController : Controller {
+        private readonly IExtensionDisplayEventHandler _extensionDisplayEventHandler;
         private readonly IModuleService _moduleService;
         private readonly IDataMigrationManager _dataMigrationManager;
         private readonly IReportsCoordinator _reportsCoordinator;
@@ -25,7 +28,9 @@ namespace Orchard.Modules.Controllers {
         private readonly IFeatureManager _featureManager;
         private readonly ShellDescriptor _shellDescriptor;
 
-        public AdminController(IOrchardServices services,
+        public AdminController(
+            IEnumerable<IExtensionDisplayEventHandler> extensionDisplayEventHandlers,
+            IOrchardServices services,
             IModuleService moduleService,
             IDataMigrationManager dataMigrationManager,
             IReportsCoordinator reportsCoordinator,
@@ -34,6 +39,7 @@ namespace Orchard.Modules.Controllers {
             ShellDescriptor shellDescriptor)
         {
             Services = services;
+            _extensionDisplayEventHandler = extensionDisplayEventHandlers.FirstOrDefault();
             _moduleService = moduleService;
             _dataMigrationManager = dataMigrationManager;
             _reportsCoordinator = reportsCoordinator;
@@ -53,11 +59,22 @@ namespace Orchard.Modules.Controllers {
             if (!Services.Authorizer.Authorize(StandardPermissions.SiteOwner, T("Not allowed to manage modules")))
                 return new HttpUnauthorizedResult();
 
-            IEnumerable<Module> modules = _extensionManager.AvailableExtensions()
+            IEnumerable<ModuleEntry> modules = _extensionManager.AvailableExtensions()
                 .Where(x => DefaultExtensionTypes.IsModule(x.ExtensionType))
-                .Select(extensionDescriptor => new Module(extensionDescriptor) {
+                .Select(extensionDescriptor => {
+                            ModuleEntry moduleEntry = new ModuleEntry {
+                                Descriptor = extensionDescriptor,
                                 IsRecentlyInstalled = _moduleService.IsRecentlyInstalled(extensionDescriptor)
-                            });
+                            };
+
+                            if (_extensionDisplayEventHandler != null) {
+                                foreach (string notification in _extensionDisplayEventHandler.Displaying(moduleEntry.Descriptor)) {
+                                    moduleEntry.Notifications.Add(notification);
+                                }
+                            }
+
+                            return moduleEntry;
+                        });
 
             return View(new ModulesIndexViewModel { 
                 Modules = modules,

src/Orchard.Web/Modules/Orchard.Modules/Events/IExtensionDisplayEventHandler.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using Orchard.Environment.Extensions.Models;
+using Orchard.Events;
+
+namespace Orchard.Modules.Events {
+    public interface IExtensionDisplayEventHandler : IEventHandler {
+        /// <summary>
+        /// Called before an extension is displayed
+        /// </summary>
+        IEnumerable<string> Displaying(ExtensionDescriptor extensionDescriptor);
+    }
+}

src/Orchard.Web/Modules/Orchard.Modules/Models/ModuleEntry.cs

@@ -1,21 +1,16 @@
-using Orchard.Environment.Extensions.Models;
+using System.Collections.Generic;
+using Orchard.Environment.Extensions.Models;
 
-namespace Orchard.Modules.ViewModels {
+namespace Orchard.Modules.Models {
     /// <summary>
     /// Represents a module.
     /// </summary>
-    public class Module {
+    public class ModuleEntry {
         /// <summary>
         /// Default constructor.
         /// </summary>
-        public Module() {}
+        public ModuleEntry() {
-
+            Notifications = new List<string>();
-        /// <summary>
-        /// Instantiates a module based on an extension descriptor.
-        /// </summary>
-        /// <param name="extensionDescriptor">The extension descriptor.</param>
-        public Module(ExtensionDescriptor extensionDescriptor) {
-            Descriptor = extensionDescriptor;
         }
 
         /// <summary>
@@ -32,5 +27,10 @@ namespace Orchard.Modules.ViewModels {
         /// Boolean value indicating if the feature was recently installed.
         /// </summary>
         public bool IsRecentlyInstalled { get; set; }
+
+        /// <summary>
+        /// List of module notifications.
+        /// </summary>
+        public List<string> Notifications { get; set; }
     }
 }

src/Orchard.Web/Modules/Orchard.Modules/Models/ModuleFeature.cs

@@ -1,6 +1,6 @@
 using Orchard.Environment.Extensions.Models;
 
-namespace Orchard.Modules.ViewModels {
+namespace Orchard.Modules.Models {
     /// <summary>
     /// Represents a module's feature.
     /// </summary>

src/Orchard.Web/Modules/Orchard.Modules/Orchard.Modules.csproj

@@ -43,6 +43,7 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\autofac\Autofac.dll</HintPath>
     </Reference>
+    <Reference Include="Microsoft.CSharp" />
     <Reference Include="System" />
     <Reference Include="System.Web" />
     <Reference Include="System.Web.Mvc, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
@@ -52,14 +53,15 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
+    <Compile Include="Events\IExtensionDisplayEventHandler.cs" />
     <Compile Include="ResourceManifest.cs" />
     <Compile Include="Commands\FeatureCommands.cs" />
     <Compile Include="Controllers\AdminController.cs" />
     <Compile Include="Extensions\StringExtensions.cs" />
     <Compile Include="Models\DoghouseComparer.cs" />
     <Compile Include="Services\IModuleService.cs" />
-    <Compile Include="ViewModels\Module.cs" />
+    <Compile Include="Models\ModuleEntry.cs" />
-    <Compile Include="ViewModels\ModuleFeature.cs" />
+    <Compile Include="Models\ModuleFeature.cs" />
     <Compile Include="ViewModels\FeaturesViewModel.cs" />
     <Compile Include="Permissions.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -96,6 +98,9 @@
   <ItemGroup>
     <Content Include="web.config" />
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="Views\ModuleEntry.cshtml" />
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 

src/Orchard.Web/Modules/Orchard.Modules/Services/ModuleService.cs

@@ -7,7 +7,7 @@ using Orchard.Environment.Descriptor;
 using Orchard.Environment.Descriptor.Models;
 using Orchard.FileSystems.VirtualPath;
 using Orchard.Localization;
-using Orchard.Modules.ViewModels;
+using Orchard.Modules.Models;
 using Orchard.UI.Notify;
 
 namespace Orchard.Modules.Services {

src/Orchard.Web/Modules/Orchard.Modules/ViewModels/FeaturesViewModel.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using Orchard.Modules.Models;
 
 namespace Orchard.Modules.ViewModels {
     public class FeaturesViewModel {

src/Orchard.Web/Modules/Orchard.Modules/ViewModels/ModulesIndexViewModel.cs

@@ -1,8 +1,9 @@
 using System.Collections.Generic;
+using Orchard.Modules.Models;
 
 namespace Orchard.Modules.ViewModels {
     public class ModulesIndexViewModel {
         public bool InstallModules { get; set; }
-        public IEnumerable<Module> Modules { get; set; }
+        public IEnumerable<ModuleEntry> Modules { get; set; }
     }
 }

src/Orchard.Web/Modules/Orchard.Modules/Views/Admin/Features.cshtml

@@ -4,6 +4,7 @@
 @using Orchard.Modules.ViewModels;
 @using Orchard.Utility.Extensions;
 @using Orchard.Modules.Models;
+
 @{
     Style.Require("ModulesAdmin");
     Style.Require("Switchable");

src/Orchard.Web/Modules/Orchard.Modules/Views/Admin/Index.cshtml

@@ -1,7 +1,9 @@
-@model ModulesIndexViewModel
+@model Orchard.Modules.ViewModels.ModulesIndexViewModel
+@using Orchard.Localization;
+@using Orchard.Modules.Models;
 @using Orchard.Modules.Extensions;
 @using Orchard.Mvc.Html;
-@using Orchard.Modules.ViewModels;
+@using Orchard.Utility.Extensions;
 
 @{
     Style.Require("ModulesAdmin");
@@ -15,26 +17,8 @@
 
 @if (Model.Modules.Count() > 0) {
     <ul class="contentItems">
-        @foreach (var module in Model.Modules.OrderBy(m => m.Descriptor.Name)) {
+        @foreach (ModuleEntry module in Model.Modules.OrderBy(m => m.Descriptor.Name)) {
-             string moduleClasses = module.IsRecentlyInstalled ? "recentlyInstalledModule" : string.Empty;
+            <li>@Display.ModuleEntry(ContentPart: module)</li>
-
-            <li class="@moduleClasses">
-                <div class="summary">
-                    <div class="properties">
-                        <h2>@module.Descriptor.Name<span> - @T("Version: {0}", !string.IsNullOrEmpty(module.Descriptor.Version) ? module.Descriptor.Version : T("1.0").ToString())</span></h2>
-                        @if (!string.IsNullOrEmpty(module.Descriptor.Description)) {
-                        <p>@module.Descriptor.Description</p>}
-                        <ul class="pageStatus" style="color:#666; margin:.6em 0 0 0;">
-                            <li>@T("Features: {0}", MvcHtmlString.Create(string.Join(", ", module.Descriptor.Features.Select(f => Html.Link(string.IsNullOrEmpty(f.Name) ? f.Id : f.Name, string.Format("{0}#{1}", Url.Action("features", new { area = "Orchard.Modules" }), f.Id.AsFeatureId(n => T(n)))).ToString()).OrderBy(s => s).ToArray())))</li>
-                            <li>&nbsp;&#124;&nbsp;@T("Author: {0}", !string.IsNullOrEmpty(module.Descriptor.Author) ? module.Descriptor.Author : T("Unknown").ToString())</li>
-                            <li>&nbsp;&#124;&nbsp;@T("Website: ")
-                                @if (!string.IsNullOrEmpty(module.Descriptor.WebSite)) { <a href="@module.Descriptor.WebSite">@module.Descriptor.WebSite</a> }
-                                else { @T("Unknown").ToString() }
-                            </li>
-                        </ul>
-                    </div>
-                </div>
-            </li>
         }
     </ul>
 }

src/Orchard.Web/Modules/Orchard.Modules/Views/ModuleEntry.cshtml

@@ -0,0 +1,32 @@
+@using Orchard.Modules.Extensions;
+@using Orchard.Mvc.Html;
+@using Orchard.Modules.ViewModels;
+@using Orchard.Environment.Extensions.Models;
+
+@{ string moduleClasses = Model.ContentPart.IsRecentlyInstalled ? "recentlyInstalledModule" : string.Empty; }
+
+<div class="summary @moduleClasses">
+    <div class="properties">
+        <h2>@Model.ContentPart.Descriptor.Name<span> - @T("Version: {0}", !string.IsNullOrEmpty(Model.ContentPart.Descriptor.Version) ? Model.ContentPart.Descriptor.Version : T("1.0").ToString())</span></h2>
+        @if (!string.IsNullOrEmpty(Model.ContentPart.Descriptor.Description)) {
+        <p>@Model.ContentPart.Descriptor.Description</p>}
+
+        @if (Model.ContentPart.Notifications != null && Model.ContentPart.Notifications.Count > 0) {
+            <ul class="notifications">
+            @foreach (string notification in Model.ContentPart.Notifications) {
+                <li>@notification</li>
+            }
+            </ul>
+        }
+
+        <ul class="pageStatus" style="color:#666; margin:.6em 0 0 0;">
+            @{ IEnumerable<FeatureDescriptor> features = Model.ContentPart.Descriptor.Features; }
+            <li>@T("Features: {0}", MvcHtmlString.Create(string.Join(", ", features.Select(f => Html.Link(string.IsNullOrEmpty(f.Name) ? f.Id : f.Name, string.Format("{0}#{1}", Url.Action("features", new { area = "Orchard.Modules" }), f.Id.AsFeatureId(n => T(n)))).ToString()).OrderBy(s => s).ToArray())))</li>
+            <li>&nbsp;&#124;&nbsp;@T("Author: {0}", !string.IsNullOrEmpty(Model.ContentPart.Descriptor.Author) ? Model.ContentPart.Descriptor.Author : T("Unknown").ToString())</li>
+            <li>&nbsp;&#124;&nbsp;@T("Website: ")
+                @if (!string.IsNullOrEmpty(Model.ContentPart.Descriptor.WebSite)) { <a href="@Model.ContentPart.Descriptor.WebSite">@Model.ContentPart.Descriptor.WebSite</a> }
+                else { @T("Unknown").ToString() }
+            </li>
+        </ul>
+    </div>
+</div>

src/Orchard.Web/Modules/Orchard.Modules/styles/orchard-modules-admin.css

@@ -4,6 +4,9 @@
 #main .features h3 {
     padding:0 3em 0 0;
 }
+.pageStatus {
+    clear: both;
+}
 .features.detail-view .category > ul {
     border:1px solid #EAEAEA;
     margin-bottom:2em;

src/Orchard.Web/Modules/Orchard.PackageManager/Controllers/AdminController.cs

@@ -51,7 +51,7 @@ namespace Orchard.PackageManager.Controllers {
         }
 
         public ActionResult ModulesUpdates(int? reportId) {
-            return PackageUpdate("ModulesUpdate", DefaultExtensionTypes.Theme, reportId);
+            return PackageUpdate("ModulesUpdate", DefaultExtensionTypes.Module, reportId);
         }
 
         private ActionResult PackageUpdate(string view, string extensionType, int? reportId) {

src/Orchard.Web/Modules/Orchard.PackageManager/Events/ExtensionDisplayEventHandler.cs

@@ -0,0 +1,43 @@
+using System.Collections.Generic;
+using System.Linq;
+using Orchard.Environment.Extensions.Models;
+using Orchard.Localization;
+using Orchard.PackageManager.Services;
+using Orchard.Packaging.Services;
+
+namespace Orchard.PackageManager.Events {
+    public class ExtensionDisplayEventHandler : IExtensionDisplayEventHandler {
+        private readonly IBackgroundPackageUpdateStatus _backgroundPackageUpdateStatus;
+        private readonly IPackagingSourceManager _packagingSourceManager;
+        private readonly IPackageUpdateService _packageUpdateService;
+
+        public ExtensionDisplayEventHandler(IBackgroundPackageUpdateStatus backgroundPackageUpdateStatus,
+            IPackagingSourceManager packagingSourceManager,
+            IPackageUpdateService packageUpdateService) {
+
+            _backgroundPackageUpdateStatus = backgroundPackageUpdateStatus;
+            _packagingSourceManager = packagingSourceManager;
+            _packageUpdateService = packageUpdateService;
+
+            T = NullLocalizer.Instance;
+        }
+
+        public Localizer T { get; set; }
+
+        public IEnumerable<string> Displaying(ExtensionDescriptor extensionDescriptor) {
+            // Get status from background task state or directly
+            _backgroundPackageUpdateStatus.Value =
+                _backgroundPackageUpdateStatus.Value ??
+                _packageUpdateService.GetPackagesStatus(_packagingSourceManager.GetSources());
+
+            UpdatePackageEntry updatePackageEntry = _backgroundPackageUpdateStatus.Value.Entries
+                .Where(package => package.ExtensionsDescriptor.Id.Equals(extensionDescriptor.Id)).FirstOrDefault();
+
+            if (updatePackageEntry != null) {
+                if (updatePackageEntry.NewVersionToInstall != null) {
+                    yield return T("New version available: {0}", updatePackageEntry.NewVersionToInstall.Version).ToString();
+                }
+            }
+        }
+    }
+}

src/Orchard.Web/Modules/Orchard.PackageManager/Events/IExtensionDisplayEventHandler.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using Orchard.Environment.Extensions.Models;
+using Orchard.Events;
+
+namespace Orchard.PackageManager.Events {
+    public interface IExtensionDisplayEventHandler : IEventHandler {
+        /// <summary>
+        /// Called before an extension is displayed
+        /// </summary>
+        IEnumerable<string> Displaying(ExtensionDescriptor extensionDescriptor);
+    }
+}

src/Orchard.Web/Modules/Orchard.PackageManager/Orchard.PackageManager.csproj

@@ -81,6 +81,8 @@
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
     <Compile Include="Controllers\AdminController.cs" />
+    <Compile Include="Events\ExtensionDisplayEventHandler.cs" />
+    <Compile Include="Events\IExtensionDisplayEventHandler.cs" />
     <Compile Include="Services\BackgroundPackageUpdateStatus.cs" />
     <Compile Include="Services\BackgroundPackageUpdateTask.cs" />
     <Compile Include="Services\FolderUpdater.cs" />

src/Orchard.Web/Modules/Orchard.PackageManager/Views/Admin/ModulesUpdate.cshtml

@@ -71,6 +71,7 @@
                     </ul>
                 </div>
             </div>
-        </li>}
+        </li>
+        }
     </ul>
 }

src/Orchard.Web/Modules/Orchard.PackageManager/Views/Admin/ThemesUpdate.cshtml

@@ -71,6 +71,7 @@
                     </ul>
                 </div>
             </div>
-        </li>}
+        </li>
+        }
     </ul>
 }

src/Orchard.Web/Modules/Orchard.Themes/Commands/ThemeCommands.cs

@@ -66,7 +66,7 @@ namespace Orchard.Themes.Commands {
                 Context.Output.WriteLine(T("--------------------------"));
                 themes.Where(t => t.Name.Trim().Equals(currentTheme.Name.Trim(), StringComparison.OrdinalIgnoreCase) == false)
                     .ToList()
-                    .ForEach(t => WriteThemeLines(t));
+                    .ForEach(WriteThemeLines);
             }
         }
 

src/Orchard.Web/Modules/Orchard.Themes/Controllers/AdminController.cs

@@ -13,6 +13,7 @@ using Orchard.Logging;
 using Orchard.Mvc.Extensions;
 using Orchard.Reports.Services;
 using Orchard.Security;
+using Orchard.Themes.Events;
 using Orchard.Themes.Models;
 using Orchard.Themes.Preview;
 using Orchard.Themes.Services;
@@ -23,6 +24,7 @@ using Orchard.Utility.Extensions;
 namespace Orchard.Themes.Controllers {
     [ValidateInput(false)]
     public class AdminController : Controller {
+        private readonly IExtensionDisplayEventHandler _extensionDisplayEventHandler;
         private readonly IDataMigrationManager _dataMigrationManager;
         private readonly IFeatureManager _featureManager;
         private readonly ISiteThemeService _siteThemeService;
@@ -33,6 +35,7 @@ namespace Orchard.Themes.Controllers {
         private readonly IReportsCoordinator _reportsCoordinator;
 
         public AdminController(
+            IEnumerable<IExtensionDisplayEventHandler> extensionDisplayEventHandlers,
             IOrchardServices services,
             IDataMigrationManager dataMigraitonManager,
             IFeatureManager featureManager,
@@ -44,6 +47,7 @@ namespace Orchard.Themes.Controllers {
             IReportsCoordinator reportsCoordinator) {
             Services = services;
 
+            _extensionDisplayEventHandler = extensionDisplayEventHandlers.FirstOrDefault();
             _dataMigrationManager = dataMigraitonManager;
             _siteThemeService = siteThemeService;
             _extensionManager = extensionManager;
@@ -63,32 +67,44 @@ namespace Orchard.Themes.Controllers {
 
         public ActionResult Index() {
             try {
-                var featuresThatNeedUpdate = _dataMigrationManager.GetFeaturesThatNeedUpdate();
+                bool installThemes = _featureManager.GetEnabledFeatures().FirstOrDefault(f => f.Id == "PackagingServices") != null;
 
+                var featuresThatNeedUpdate = _dataMigrationManager.GetFeaturesThatNeedUpdate();
                 ThemeEntry currentTheme = new ThemeEntry(_siteThemeService.GetSiteTheme());
                 IEnumerable<ThemeEntry> themes = _extensionManager.AvailableExtensions()
                     .Where(extensionDescriptor => {
-                        bool hidden = false;
+                            bool hidden = false;
-                        string tags = extensionDescriptor.Tags;
+                            string tags = extensionDescriptor.Tags;
-                        if (tags != null) {
+                            if (tags != null) {
-                            hidden = tags.Split(',').Any(t => t.Trim().Equals("hidden", StringComparison.OrdinalIgnoreCase));
+                                hidden = tags.Split(',').Any(t => t.Trim().Equals("hidden", StringComparison.OrdinalIgnoreCase));
-                        }
+                            }
 
-                        return !hidden &&
+                            return !hidden &&
-                            DefaultExtensionTypes.IsTheme(extensionDescriptor.ExtensionType) &&
+                                    DefaultExtensionTypes.IsTheme(extensionDescriptor.ExtensionType) &&
-                            !currentTheme.Descriptor.Id.Equals(extensionDescriptor.Id);
+                                    !currentTheme.Descriptor.Id.Equals(extensionDescriptor.Id);
-                    })
+                        })
-                    .Select(extensionDescriptor => new ThemeEntry(extensionDescriptor) {
+                    .Select(extensionDescriptor => {
-                        NeedsUpdate = featuresThatNeedUpdate.Contains(extensionDescriptor.Id),
+                            ThemeEntry themeEntry = new ThemeEntry(extensionDescriptor) {
-                        IsRecentlyInstalled = _themeService.IsRecentlyInstalled(extensionDescriptor),
+                                NeedsUpdate = featuresThatNeedUpdate.Contains(extensionDescriptor.Id),
-                        Enabled = _shellDescriptor.Features.Any(sf => sf.Name == extensionDescriptor.Id)
+                                IsRecentlyInstalled = _themeService.IsRecentlyInstalled(extensionDescriptor),
-                    })
+                                Enabled = _shellDescriptor.Features.Any(sf => sf.Name == extensionDescriptor.Id),
+                                CanUninstall = installThemes
+                            };
+
+                            if (_extensionDisplayEventHandler != null) {
+                                foreach (string notification in _extensionDisplayEventHandler.Displaying(themeEntry.Descriptor)) {
+                                    themeEntry.Notifications.Add(notification);
+                                }
+                            }
+
+                            return themeEntry;
+                        })
                     .ToArray();
 
                 return View(new ThemesIndexViewModel {
                     CurrentTheme = currentTheme,
                     Themes = themes,
-                    InstallThemes = _featureManager.GetEnabledFeatures().FirstOrDefault(f => f.Id == "PackagingServices") != null
+                    InstallThemes = installThemes
                 });
             } catch (Exception exception) {
                 this.Error(exception, T("Listing themes failed: {0}", exception.Message), Logger, Services.Notifier);
@@ -102,7 +118,10 @@ namespace Orchard.Themes.Controllers {
             try {
                 if (!Services.Authorizer.Authorize(Permissions.ApplyTheme, T("Couldn't preview the current theme")))
                     return new HttpUnauthorizedResult();
+
+                _themeService.EnableThemeFeatures(themeName);
                 _previewTheme.SetPreviewTheme(themeName);
+
                 return this.RedirectLocal(returnUrl, "~/");
             } catch (Exception exception) {
                 this.Error(exception, T("Previewing theme failed: {0}", exception.Message), Logger, Services.Notifier);

src/Orchard.Web/Modules/Orchard.Themes/Events/IExtensionDisplayEventHandler.cs

@@ -0,0 +1,12 @@
+using System.Collections.Generic;
+using Orchard.Environment.Extensions.Models;
+using Orchard.Events;
+
+namespace Orchard.Themes.Events {
+    public interface IExtensionDisplayEventHandler : IEventHandler {
+        /// <summary>
+        /// Called before an extension is displayed
+        /// </summary>
+        IEnumerable<string> Displaying(ExtensionDescriptor extensionDescriptor);
+    }
+}

src/Orchard.Web/Modules/Orchard.Themes/Models/ThemeEntry.cs

@@ -1,3 +1,4 @@
+using System.Collections.Generic;
 using Orchard.Environment.Extensions.Models;
 
 namespace Orchard.Themes.Models {
@@ -43,6 +44,16 @@ namespace Orchard.Themes.Models {
         /// </summary>
         public bool IsRecentlyInstalled { get; set; }
 
+        /// <summary>
+        /// Boolean value indicating if the theme can be uninstalled.
+        /// </summary>
+        public bool CanUninstall { get; set; }
+
+        /// <summary>
+        /// List of theme notifications.
+        /// </summary>
+        public List<string> Notifications { get; set; }
+
         /// <summary>
         /// The theme's name.
         /// </summary>

src/Orchard.Web/Modules/Orchard.Themes/Orchard.Themes.csproj

@@ -49,11 +49,11 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AdminMenu.cs" />
-    <Compile Include="Models\ThemeEntry.cs" />
     <Compile Include="Commands\ThemeCommands.cs" />
+    <Compile Include="Events\IExtensionDisplayEventHandler.cs" />
+    <Compile Include="Models\ThemeEntry.cs" />
     <Compile Include="ResourceManifest.cs" />
     <Compile Include="Controllers\AdminController.cs" />
-    <Compile Include="Migrations.cs" />
     <Compile Include="Handlers\ThemeSiteSettingsPartHandler.cs" />
     <Compile Include="Models\ThemeSiteSettingsPart.cs" />
     <Compile Include="Models\ThemeSiteSettingsPartRecord.cs" />
@@ -101,6 +101,12 @@
   <ItemGroup>
     <Content Include="web.config" />
   </ItemGroup>
+  <ItemGroup>
+    <Content Include="Views\ThemeEntry.cshtml" />
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="Views\ThemeEntry.Current.cshtml" />
+  </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 

src/Orchard.Web/Modules/Orchard.Themes/Views/Admin/Index.cshtml

@@ -15,20 +15,7 @@
 } else {
     <h3 id="currentThemeTitle">@T("Current Theme")</h3>
 
-    <div id="currentTheme">
+    @Display.ThemeEntry_Current(ContentPart: Model.CurrentTheme)
-        @Html.Image(Href(Html.ThemePath(Model.CurrentTheme.Descriptor, "/Theme.png")), Html.Encode(Model.CurrentTheme.Name), new { @class = "themePreviewImage" })
-
-        <div class="details">
-            @Model.CurrentTheme.Name<br />
-            @T("By") @Model.CurrentTheme.Descriptor.Author<br />
-            @T("Version:") @Model.CurrentTheme.Descriptor.Version<br />
-            @if (Model.CurrentTheme.Descriptor.WebSite != null) {
-                <a href="@Model.CurrentTheme.Descriptor.WebSite">@Model.CurrentTheme.Descriptor.WebSite</a><br />
-            }
-            <br />
-            <p>@Model.CurrentTheme.Descriptor.Description</p>
-        </div>
-    </div>
 }
 
 <div id="installedBar">
@@ -43,54 +30,8 @@
     <p>@T("There are no additional themes installed.")</p>
 } else {
     <ul class="templates">
-        @foreach (ThemeEntry theme in Model.Themes) {
+        @foreach (ThemeEntry themeEntry in Model.Themes) {
-            string themeClasses = theme.IsRecentlyInstalled ? "recentlyInstalledTheme" : string.Empty;
+            <li>@Display.ThemeEntry(ContentPart: themeEntry)</li>
-
-            <li class="@themeClasses">
-                <div>
-                    <h3>@theme.Name</h3>
-                    @Html.Image(Href(Html.ThemePath(Model.CurrentTheme.Descriptor, "/Theme.png")), Html.Encode(Model.CurrentTheme.Name), null)
-
-                    @using (Html.BeginFormAntiForgeryPost(Url.Action("Activate"), FormMethod.Post, new { @class = "inline" })) {
-                        @Html.Hidden("themeName", theme.Descriptor.Id)
-                        <button type="submit" title="@T("Activate")">@T("Set Current")</button>
-                    }
-
-                    @using (Html.BeginFormAntiForgeryPost(Url.Action("Preview"), FormMethod.Post, new { @class = "inline" })) {
-                        @Html.Hidden("themeName", theme.Descriptor.Id)
-                        <button type="submit" title="@T("Preview")">@T("Preview")</button>
-                    }
-
-                    <h5>@T("By") @theme.Descriptor.Author</h5>
-                    <p>
-                        @T("Version:") @theme.Descriptor.Version<br />
-                        @theme.Descriptor.Description<br />
-                        @if (theme.Descriptor.WebSite != null) {
-                            <a href="@theme.Descriptor.WebSite">@theme.Descriptor.WebSite</a><br />
-                        }
-                    </p>
-
-                    @if (theme.Enabled) {
-                        using (Html.BeginFormAntiForgeryPost(Url.Action("Disable"), FormMethod.Post, new { @class = "inline link" })) {
-                            @Html.Hidden("themeName", theme.Descriptor.Id)
-                            <button type="submit" title="Disable">@T("Disable")</button>
-                        }
-                    }
-
-                    @if (theme.NeedsUpdate) {
-                        using (Html.BeginFormAntiForgeryPost(Url.Action("Update"), FormMethod.Post, new { @class = "inline link" })) {
-                            @Html.Hidden("themeName", theme.Descriptor.Id)
-                            <button type="submit" class="update">@T("Update")</button> <br/>
-                        }
-                    }
-
-                    @if (Model.InstallThemes) {
-                        using (Html.BeginFormAntiForgeryPost(Url.Action("RemoveTheme", "PackagingServices", new { area = "Orchard.Packaging", returnUrl = HttpContext.Current.Request.RawUrl, retryUrl = HttpContext.Current.Request.RawUrl, themeId = theme.Descriptor.Id }), FormMethod.Post, new { @class = "inline link" })) {
-                            <button type="submit" class="uninstall" title="@T("Uninstall")">@T("Uninstall")</button>
-                        }
-                    }
-                </div>
-            </li>
         }
     </ul>
 }

src/Orchard.Web/Modules/Orchard.Themes/Views/ThemeEntry.Current.cshtml

@@ -0,0 +1,18 @@
+@using Orchard.Themes.Models
+@using Orchard.Mvc.Html
+@using Orchard.Environment.Extensions.Models
+
+<div id="currentTheme">
+    @Html.Image(Href(Html.ThemePath((ExtensionDescriptor)Model.ContentPart.Descriptor, "/Theme.png")), Html.Encode((string)Model.ContentPart.Name), new { @class = "themePreviewImage" })
+
+    <div class="details">
+        @Model.ContentPart.Name<br />
+        @T("By") @Model.ContentPart.Descriptor.Author<br />
+        @T("Version:") @Model.ContentPart.Descriptor.Version<br />
+        @if (Model.ContentPart.Descriptor.WebSite != null) {
+            <a href="@Model.ContentPart.Descriptor.WebSite">@Model.ContentPart.Descriptor.WebSite</a><br />
+        }
+        <br />
+        <p>@Model.ContentPart.Descriptor.Description</p>
+    </div>
+</div>

src/Orchard.Web/Modules/Orchard.Themes/Views/ThemeEntry.cshtml

@@ -0,0 +1,58 @@
+@using Orchard.Themes.Models
+@using Orchard.Mvc.Html
+@using Orchard.Environment.Extensions.Models
+
+@{ string themeClasses = Model.ContentPart.IsRecentlyInstalled ? "recentlyInstalledTheme" : string.Empty; }
+
+<div class="@themeClasses">
+
+    <h3>@Model.ContentPart.Name</h3>
+
+    @Html.Image(Href(Html.ThemePath((ExtensionDescriptor) Model.ContentPart.Descriptor, "/Theme.png")), Html.Encode((string)Model.ContentPart.Name), null)
+    @using (Html.BeginFormAntiForgeryPost(Url.Action("Activate"), FormMethod.Post, new { @class = "inline" })) {
+        @Html.Hidden("themeName", (string)Model.ContentPart.Descriptor.Id)
+        <button type="submit" title="@T("Activate")">@T("Set Current")</button>
+    }
+
+    @using (Html.BeginFormAntiForgeryPost(Url.Action("Preview"), FormMethod.Post, new { @class = "inline" })) {
+        @Html.Hidden("themeName", (string)Model.ContentPart.Descriptor.Id)
+        <button type="submit" title="@T("Preview")">@T("Preview")</button>
+    }
+
+    <h5>@T("By") @Model.ContentPart.Descriptor.Author</h5>
+    <p>
+        @T("Version:") @Model.ContentPart.Descriptor.Version<br />
+        @Model.ContentPart.Descriptor.Description<br />
+        @if (Model.ContentPart.Descriptor.WebSite != null) {
+            <a href="@Model.ContentPart.Descriptor.WebSite">@Model.ContentPart.Descriptor.WebSite</a><br />
+        }
+    </p>
+
+    @if (Model.ContentPart.Notifications != null && Model.ContentPart.Notifications.Count > 0) {
+        <ul class="notifications">
+        @foreach (string notification in Model.ContentPart.Notifications) {
+            <li>@notification</li>
+        }
+        </ul>
+    }
+
+    @if (Model.ContentPart.Enabled) {
+        using (Html.BeginFormAntiForgeryPost(Url.Action("Disable"), FormMethod.Post, new { @class = "inline link" })) {
+            @Html.Hidden("themeName", (string)Model.ContentPart.Descriptor.Id)
+            <button type="submit" title="Disable">@T("Disable")</button>
+        }
+    }
+
+    @if (Model.ContentPart.NeedsUpdate) {
+        using (Html.BeginFormAntiForgeryPost(Url.Action("Update"), FormMethod.Post, new { @class = "inline link" })) {
+            @Html.Hidden("themeName", (string)Model.ContentPart.Descriptor.Id)
+            <button type="submit" class="update">@T("Update")</button> <br/>
+        }
+    }
+
+    @if (Model.ContentPart.CanUninstall) {
+        using (Html.BeginFormAntiForgeryPost(Url.Action("RemoveTheme", "PackagingServices", new { area = "Orchard.Packaging", returnUrl = HttpContext.Current.Request.RawUrl, retryUrl = HttpContext.Current.Request.RawUrl, themeId = Model.ContentPart.Descriptor.Id }), FormMethod.Post, new { @class = "inline link" })) {
+            <button type="submit" class="uninstall" title="@T("Uninstall")">@T("Uninstall")</button>
+        }
+    }
+</div>

src/Orchard.Web/Modules/Orchard.Themes/Views/ThemePreview.cshtml

@@ -68,4 +68,3 @@ html.dyn #themepreview button.preview { display:none; }
         </fieldset>
     }
 </div>
-