#5375: Added current theme recipe step.

This enables exporting the current theme setting and restoring it during import.

src/Orchard.Web/Modules/Orchard.Themes/ImportExport/CurrentThemeExportHandler.cs

@@ -0,0 +1,34 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Xml.Linq;
+using Orchard.Environment.Extensions;
+using Orchard.Events;
+using Orchard.Themes.Services;
+
+namespace Orchard.Themes.ImportExport {
+    public interface IExportEventHandler : IEventHandler {
+        void Exporting(dynamic context);
+        void Exported(dynamic context);
+    }
+
+    [OrchardFeature("Orchard.Themes.ImportExportCurrentTheme")]
+    public class CurrentThemeExportHandler : IExportEventHandler {
+        private readonly ISiteThemeService _siteThemeService;
+        
+        public CurrentThemeExportHandler(ISiteThemeService siteThemeService) {
+            _siteThemeService = siteThemeService;
+        }
+
+        public void Exporting(dynamic context) { }
+
+        public void Exported(dynamic context) {
+            if (!((IEnumerable<string>)context.ExportOptions.CustomSteps).Contains("CurrentTheme")) {
+                return;
+            }
+
+            var currentThemeId = _siteThemeService.GetCurrentThemeName();
+            var root = new XElement("CurrentTheme", new XAttribute("id", currentThemeId));
+            context.Document.Element("Orchard").Add(root);
+        }
+    }
+}

src/Orchard.Web/Modules/Orchard.Themes/ImportExport/CurrentThemeRecipeHandler.cs

@@ -0,0 +1,27 @@
+using System;
+using Orchard.Environment.Extensions;
+using Orchard.Recipes.Models;
+using Orchard.Recipes.Services;
+using Orchard.Themes.Services;
+
+namespace Orchard.Themes.ImportExport {
+
+    [OrchardFeature("Orchard.Themes.ImportExportCurrentTheme")]
+    public class CurrentThemeRecipeHandler : IRecipeHandler {
+        private readonly ISiteThemeService _siteThemeService;
+        
+        public CurrentThemeRecipeHandler(ISiteThemeService siteThemeService) {
+            _siteThemeService = siteThemeService;
+        }
+
+        public void ExecuteRecipeStep(RecipeContext context) {
+            if (!String.Equals(context.RecipeStep.Name, "CurrentTheme", StringComparison.OrdinalIgnoreCase)) {
+                return;
+            }
+
+            var themeId = context.RecipeStep.Step.Attribute("id").Value;
+            _siteThemeService.SetSiteTheme(themeId);
+            context.Executed = true;
+        }
+    }
+}

src/Orchard.Web/Modules/Orchard.Themes/ImportExport/CurrentThemeStep.cs

@@ -0,0 +1,18 @@
+using System.Collections.Generic;
+using Orchard.Environment.Extensions;
+using Orchard.Events;
+
+namespace Orchard.Themes.ImportExport {
+    public interface ICustomExportStep : IEventHandler {
+        void Register(IList<string> steps);
+    }
+
+    [OrchardFeature("Orchard.Themes.ImportExportCurrentTheme")]
+    public class CurrentThemeStep : ICustomExportStep {
+
+        void ICustomExportStep.Register(IList<string> steps) {
+            steps.Add("CurrentTheme");
+        }
+    }
+}
+

src/Orchard.Web/Modules/Orchard.Themes/Module.txt

@@ -8,3 +8,12 @@ OrchardVersion: 1.9
 Description: The themes module makes it possible for Orchard applications to customize the look and feel of an Orchard web site.
 FeatureDescription: Basic theming capability.
 Category: Core
+Features:
+    Orchard.Themes:
+        Description: Basic theming capability.
+        Category: Core
+    Orchard.Themes.ImportExportCurrentTheme:
+        Name: Import Export Current Theme
+        Description: Provides the capability to import and export the current theme.
+        Category: Deployment
+        Dependencies: Orchard.ImportExport

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

@@ -25,6 +25,7 @@
     <IISExpressAnonymousAuthentication />
     <IISExpressWindowsAuthentication />
     <IISExpressUseClassicPipelineMode />
+    <UseGlobalApplicationHostFile />
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -60,6 +61,7 @@
       <SpecificVersion>False</SpecificVersion>
       <HintPath>..\..\..\..\lib\aspnetmvc\System.Web.Mvc.dll</HintPath>
     </Reference>
+    <Reference Include="System.XML" />
     <Reference Include="System.Xml.Linq" />
   </ItemGroup>
   <ItemGroup>
@@ -67,6 +69,9 @@
     <Compile Include="Commands\ThemeCommands.cs" />
     <Compile Include="Drivers\DisableThemePartDriver.cs" />
     <Compile Include="Events\IExtensionDisplayEventHandler.cs" />
+    <Compile Include="ImportExport\CurrentThemeRecipeHandler.cs" />
+    <Compile Include="ImportExport\CurrentThemeExportHandler.cs" />
+    <Compile Include="ImportExport\CurrentThemeStep.cs" />
     <Compile Include="Migrations.cs" />
     <Compile Include="Models\ThemeEntry.cs" />
     <Compile Include="Models\DisableThemePart.cs" />

src/Orchard/ContentManagement/Handlers/IdentifyDependenciesContext.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Xml.Linq;
+
+namespace Orchard.ContentManagement.Handlers {
+    public class IdentifyDependenciesContext {
+
+        public IdentifyDependenciesContext(XElement contentElement, ImportContentSession importContentSession) {
+            ContentElement = contentElement;
+            ImportContentSession = importContentSession;
+        }
+
+        public XElement ContentElement { get; set; }
+        private ImportContentSession ImportContentSession { get; }
+
+        public void RegisterDependency(string id) {
+            if(!String.IsNullOrWhiteSpace(id))
+                ImportContentSession.RegisterDependency(new ContentIdentity(id));
+        }
+    }
+}