From 70a9ba81a5b15d5328fcb666d614c092467cf2ee Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Fri, 28 Aug 2015 23:19:06 +0200
Subject: [PATCH] Added AssetLoader to Perspex.Gtk.

---
 src/Gtk/Perspex.Gtk/AssetLoader.cs     | 48 ++++++++++++++++++++++++++
 src/Gtk/Perspex.Gtk/GtkPlatform.cs     |  1 +
 src/Gtk/Perspex.Gtk/Perspex.Gtk.csproj |  5 +++
 3 files changed, 54 insertions(+)
 create mode 100644 src/Gtk/Perspex.Gtk/AssetLoader.cs

diff --git a/src/Gtk/Perspex.Gtk/AssetLoader.cs b/src/Gtk/Perspex.Gtk/AssetLoader.cs
new file mode 100644
index 0000000000..43276dac0b
--- /dev/null
+++ b/src/Gtk/Perspex.Gtk/AssetLoader.cs
@@ -0,0 +1,48 @@
+// -----------------------------------------------------------------------
+// <copyright file="AssetLoader.cs" company="Steven Kirk">
+// Copyright 2015 MIT Licence. See licence.md for more information.
+// </copyright>
+// -----------------------------------------------------------------------
+
+namespace Perspex.Gtk
+{
+    using System;
+    using System.Globalization;
+    using System.IO;
+    using System.Reflection;
+    using System.Resources;
+    using Perspex.Platform;
+
+    /// <summary>
+    /// Loads assets compiled into the application binary.
+    /// </summary>
+    public class AssetLoader : IAssetLoader
+    {
+        /// <summary>
+        /// Opens the resource with the requested URI.
+        /// </summary>
+        /// <param name="uri">The URI.</param>
+        /// <returns>A stream containing the resource contents.</returns>
+        /// <exception cref="FileNotFoundException">
+        /// The resource was not found.
+        /// </exception>
+        public Stream Open(Uri uri)
+        {
+            var assembly = Assembly.GetEntryAssembly();
+            var resourceName = assembly.GetName().Name + ".g";
+            var manager = new ResourceManager(resourceName, assembly);
+
+            using (var resourceSet = manager.GetResourceSet(CultureInfo.CurrentCulture, true, true))
+            {
+                var stream = (Stream)resourceSet.GetObject(uri.ToString(), true);
+
+                if (stream == null)
+                {
+                    throw new FileNotFoundException($"The requested asset could not be found: {uri}");
+                }
+
+                return stream;
+            }
+        }
+    }
+}
diff --git a/src/Gtk/Perspex.Gtk/GtkPlatform.cs b/src/Gtk/Perspex.Gtk/GtkPlatform.cs
index 7618fb8f3c..7165046926 100644
--- a/src/Gtk/Perspex.Gtk/GtkPlatform.cs
+++ b/src/Gtk/Perspex.Gtk/GtkPlatform.cs
@@ -44,6 +44,7 @@ namespace Perspex.Gtk
             locator.Register(() => GtkKeyboardDevice.Instance, typeof(IKeyboardDevice));
             locator.Register(() => instance, typeof(IPlatformSettings));
             locator.Register(() => instance, typeof(IPlatformThreadingInterface));
+            locator.RegisterConstant(new AssetLoader(), typeof(IAssetLoader));
         }
 
         public bool HasMessages()
diff --git a/src/Gtk/Perspex.Gtk/Perspex.Gtk.csproj b/src/Gtk/Perspex.Gtk/Perspex.Gtk.csproj
index 858396a5cc..ba89098092 100644
--- a/src/Gtk/Perspex.Gtk/Perspex.Gtk.csproj
+++ b/src/Gtk/Perspex.Gtk/Perspex.Gtk.csproj
@@ -58,6 +58,7 @@
     </Reference>
   </ItemGroup>
   <ItemGroup>
+    <Compile Include="AssetLoader.cs" />
     <Compile Include="GtkExtensions.cs" />
     <Compile Include="PopupImpl.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
@@ -72,6 +73,10 @@
       <Project>{d211e587-d8bc-45b9-95a4-f297c8fa5200}</Project>
       <Name>Perspex.Animation</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\Perspex.Application\Perspex.Application.csproj">
+      <Project>{799a7bb5-3c2c-48b6-85a7-406a12c420da}</Project>
+      <Name>Perspex.Application</Name>
+    </ProjectReference>
     <ProjectReference Include="..\..\Perspex.Base\Perspex.Base.csproj">
       <Project>{B09B78D8-9B26-48B0-9149-D64A2F120F3F}</Project>
       <Name>Perspex.Base</Name>