feature -> possibility to disable mouse over extension

WpfDesign/Project/Extensions/Extension.cs

@@ -60,8 +60,36 @@ namespace ICSharpCode.WpfDesign.Extensions
 		/// Gets or sets a semicolon-separated list with extension names that is disabled for a component's view.
 		/// </summary>
 		public static readonly DependencyProperty DisabledExtensionsProperty =
-			DependencyProperty.RegisterAttached("DisabledExtensions", typeof(string), typeof(Extension), new PropertyMetadata(null));
-
-		
+			DependencyProperty.RegisterAttached("DisabledExtensions", typeof(string), typeof(Extension), new PropertyMetadata(null));
+
+
+
+		/// <summary>
+		/// Gets the value of the <see cref="DisableMouseOverExtensionsProperty"/> attached property for an object.
+		/// </summary>
+		/// <param name="obj">The object from which the property value is read.</param>
+		/// <returns>The object's <see cref="DisableMouseOverExtensionsProperty"/> property value.</returns>
+		public static bool GetDisableMouseOverExtensions(DependencyObject obj)
+		{
+			return (bool)obj.GetValue(DisableMouseOverExtensionsProperty);
+		}
+
+		/// <summary>
+		/// Sets the value of the <see cref="DisableMouseOverExtensionsProperty"/> attached property for an object. 
+		/// </summary>
+		/// <param name="obj">The object to which the attached property is written.</param>
+		/// <param name="value">The value to set.</param>
+		public static void SetDisableMouseOverExtensions(DependencyObject obj, bool value)
+		{
+			obj.SetValue(DisableMouseOverExtensionsProperty, value);
+		}
+
+		/// <summary>
+		/// Disables the mouse over Extension for this Element
+		/// </summary>
+		public static readonly DependencyProperty DisableMouseOverExtensionsProperty =
+			DependencyProperty.RegisterAttached("DisableMouseOverExtensions", typeof(bool), typeof(Extension), new PropertyMetadata(false));
+
+
 	}
 }

WpfDesign/Project/Extensions/MouseOverExtensionServer.cs

@@ -67,6 +67,9 @@ namespace ICSharpCode.WpfDesign.Extensions
 					if (potentialHitTestTarget is IAdornerLayer)
 						return HitTestFilterBehavior.ContinueSkipSelfAndChildren;
 
+					if (Extension.GetDisableMouseOverExtensions(potentialHitTestTarget))
+						return HitTestFilterBehavior.ContinueSkipSelfAndChildren;
+
 					var item = this.Services.Component.GetDesignItem(potentialHitTestTarget);
 					if (item == null)
 						return HitTestFilterBehavior.ContinueSkipSelf;