[Wpf] Add WebView Emulation mode example

Add an example on how to set different IE emulation
modes for the WPF based WebView backend.

1 files changed, 57 insertions, 0 deletions

diff --git a/TestApps/WpfTest/Main.cs b/TestApps/WpfTest/Main.cs
index fe065a59..feb5e7af 100644
--- a/TestApps/WpfTest/Main.cs
+++ b/TestApps/WpfTest/Main.cs
@@ -2,6 +2,7 @@
 //  
 // Author:
 //       Luís Reis <luiscubal@gmail.com>
+//       Vsevolod Kukol <sevoku@microsoft.com>
 // 
 // Copyright (c) 2012 Luís Reis
 // 
@@ -34,7 +35,63 @@ namespace WpfTest
 		[STAThread]
 		public static void Main(string[] args)
 		{
+			/*
+			 WORKAROUND for Xwt.WebView on Windows using WPF:
+			 The WPF WebView Backend is based on System.Windows.Controls.WebView
+			 which runs in IE7 emulation mode by default. This behaviour can only be
+			 changed by modifying the Windows registry, which is not part of the Xwt
+			 API. See https://msdn.microsoft.com/de-de/library/ee330730.aspx#browser_emulation
+			 for more information.
+			 Uncomment the next line to set different IE Emulation modes
+			*/
+			//WebViewEmulationMode = IEEmulationMode.IE11;
+
 			App.Run (ToolkitType.Wpf);
 		}
+
+		/// <summary>
+		/// Gets or sets the System.Windows.Controls.WebView Emulation mode
+		/// </summary>
+		/// <remarks>This is a simple example on how to change the WebView emulation mode</remarks>
+		public static IEEmulationMode WebViewEmulationMode
+		{
+			get
+			{
+				var regKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"Software\\Microsoft\\Internet Explorer\\Main\\FeatureControl\\FEATURE_BROWSER_EMULATION", true);
+				if (regKey == null)
+					return IEEmulationMode.Default;
+
+				string myProgramName = System.IO.Path.GetFileName(System.Reflection.Assembly.GetEntryAssembly().Location);
+				var currentValue = regKey.GetValue(myProgramName);
+				return currentValue != null ? (IEEmulationMode)currentValue : IEEmulationMode.Default;
+			}
+			set
+			{
+				var regKey = Microsoft.Win32.Registry.CurrentUser.OpenSubKey(@"Software\\Microsoft\\Internet Explorer\\Main\\FeatureControl\\FEATURE_BROWSER_EMULATION", true);
+				if (regKey == null)
+					regKey = Microsoft.Win32.Registry.CurrentUser.CreateSubKey(@"Software\\Microsoft\\Internet Explorer\\Main\\FeatureControl\\FEATURE_BEHAVIORS", Microsoft.Win32.RegistryKeyPermissionCheck.ReadWriteSubTree);
+
+				string executableName = System.IO.Path.GetFileName(System.Reflection.Assembly.GetEntryAssembly().Location);
+				var currentValue = regKey.GetValue(executableName);
+				if (currentValue == null || (int)currentValue != (int)value)
+					regKey.SetValue(executableName, (int)value, Microsoft.Win32.RegistryValueKind.DWord);
+			}
+		}
+
+		/// <summary>Internet Explorer Emulation Modes</summary>
+		/// <remarks>https://msdn.microsoft.com/de-de/library/ee330730.aspx#browser_emulation</remarks>
+		public enum IEEmulationMode
+		{
+			IE7 = 0x00001b58,
+			IE8 = 0x00001f40,
+			IE8Force = 0x000022b8,
+			IE9 = 0x00002328,
+			IE9Force = 0x0000270f,
+			IE10 = 0x00002710,
+			IE10Force = 0x00002711,
+			IE11 = 0x00002af8,
+			IE11Force = 0x00002af9,
+			Default = IE7,
+		}
 	}
 }