Adding a ShapePlacementParsingStrategy

Built-in shape table provider to provide alterations based on placement files in modules and themes

--HG--
branch : composition

src/Orchard.Web/Core/Orchard.Core.csproj

@@ -392,7 +392,7 @@
     <Content Include="Shapes\Views\MenuItem.cshtml" />
     <Content Include="Shapes\Views\Web.config" />
     <Content Include="Dashboard\Views\Helper\Index.cshtml" />
-    <Content Include="Routable\Views\Parts\Routable.RoutePart.cshtml" />
+    <None Include="Routable\Views\Parts\RoutableTitle.cshtml" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" />

src/Orchard/DisplayManagement/Descriptors/ShapePlacements/ShapePlacementParsingStrategy.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Orchard.Environment.Descriptor.Models;
+using Orchard.Environment.Extensions;
+using Orchard.Environment.Extensions.Models;
+
+namespace Orchard.DisplayManagement.Descriptors.ShapePlacements {
+    public class ShapePlacementParsingStrategy : IShapeTableProvider {
+        private readonly IExtensionManager _extensionManager;
+        private readonly ShellDescriptor _shellDescriptor;
+
+        public ShapePlacementParsingStrategy(
+            IExtensionManager extensionManager,
+            ShellDescriptor shellDescriptor) {
+            _extensionManager = extensionManager;
+            _shellDescriptor = shellDescriptor;
+        }
+
+        public void Discover(ShapeTableBuilder builder) {
+
+            var availableFeatures = _extensionManager.AvailableFeatures();
+                        var activeFeatures = availableFeatures.Where(fd => FeatureIsTheme(fd) || FeatureIsEnabled(fd));
+            var activeExtensions = Once(activeFeatures);
+
+            foreach (var extensionDescriptor in activeExtensions) {
+                foreach (var featureDescriptor in extensionDescriptor.Features.Where(fd=>fd.Name == fd.Extension.Name)) {
+                    builder.Describe("Parts_RoutableTitle")
+                        .From(new Feature{Descriptor = featureDescriptor})
+                        .Placement(ctx => ctx.ContentType == "WidgetPage", "Content:after");
+                }
+                //var featureDescriptors = extensionDescriptor.Where(fd => fd.Name == hit.extensionDescriptor.Name);
+                //foreach (var featureDescriptor in featureDescriptors) {
+            }
+            //builder.Describe("Parts_RoutableTitle")
+                //.Placement(ctx => ctx.ContentType == "Page", "Content:after");
+        }
+
+        
+        private bool FeatureIsTheme(FeatureDescriptor fd) {
+            return fd.Extension.ExtensionType == "Theme";
+        }
+
+        private bool FeatureIsEnabled(FeatureDescriptor fd) {
+            return _shellDescriptor.Features.Any(sf => sf.Name == fd.Name);
+        }
+        
+        private static IEnumerable<ExtensionDescriptor> Once(IEnumerable<FeatureDescriptor> featureDescriptors) {
+            var once = new ConcurrentDictionary<string, object>();
+            return featureDescriptors.Select(fd => fd.Extension).Where(ed => once.TryAdd(ed.Name, null)).ToList();
+        }
+
+    }
+}

src/Orchard/Orchard.Framework.csproj

@@ -165,6 +165,7 @@
     <Compile Include="DisplayManagement\Descriptors\ShapeDescriptor.cs" />
     <Compile Include="DisplayManagement\Descriptors\ShapeAlteration.cs" />
     <Compile Include="DisplayManagement\Descriptors\ShapeAlterationBuilder.cs" />
+    <Compile Include="DisplayManagement\Descriptors\ShapePlacements\ShapePlacementParsingStrategy.cs" />
     <Compile Include="DisplayManagement\Descriptors\ShapeTable.cs" />
     <Compile Include="DisplayManagement\Descriptors\ShapeTableBuilder.cs" />
     <Compile Include="DisplayManagement\Implementation\IShapeDisplayEvents.cs" />