### Eclipse Workspace Patch 1.0
#P org.eclipse.compare
Index: compare/org/eclipse/compare/CompareEditorInput.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/CompareEditorInput.java,v
retrieving revision 1.116
diff -u -r1.116 CompareEditorInput.java
--- compare/org/eclipse/compare/CompareEditorInput.java	4 Mar 2010 16:26:05 -0000	1.116
+++ compare/org/eclipse/compare/CompareEditorInput.java	9 Apr 2010 13:04:00 -0000
@@ -38,6 +38,7 @@
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.ListenerList;
 import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.core.runtime.PlatformObject;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.jface.action.IStatusLineManager;
@@ -142,7 +143,7 @@
  * @see CompareUI
  * @see CompareEditorInput
  */
-public abstract class CompareEditorInput implements IEditorInput, IPropertyChangeNotifier, IRunnableWithProgress, ICompareContainer {
+public abstract class CompareEditorInput extends PlatformObject implements IEditorInput, IPropertyChangeNotifier, IRunnableWithProgress, ICompareContainer {
 
 	private static final boolean DEBUG= false;
 	
@@ -327,7 +328,7 @@
 			}
 		}
 
-		return null;
+		return super.getAdapter(adapter);
 	}
 
 	public synchronized ICompareNavigator getNavigator() {
Index: compare/org/eclipse/compare/internal/AdapterFactory.java
===================================================================
RCS file: compare/org/eclipse/compare/internal/AdapterFactory.java
diff -N compare/org/eclipse/compare/internal/AdapterFactory.java
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ compare/org/eclipse/compare/internal/AdapterFactory.java	1 Jan 1970 00:00:00 -0000
@@ -0,0 +1,33 @@
+package org.eclipse.compare.internal;
+
+import org.eclipse.compare.CompareEditorInput;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IAdapterFactory;
+import org.eclipse.ui.IContributorResourceAdapter;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.IFileEditorInput;
+
+public class AdapterFactory implements IAdapterFactory {
+
+	public Object getAdapter(final Object adaptableObject, Class adapterType) {
+		if (IContributorResourceAdapter.class.equals(adapterType)
+				&& adaptableObject instanceof CompareEditorInput) {
+			return new IContributorResourceAdapter() {
+				public IResource getAdaptedResource(IAdaptable adaptable) {
+					Object ei = ((CompareEditorInput) adaptableObject)
+							.getAdapter(IEditorInput.class);
+					if (ei instanceof IFileEditorInput) {
+						return ((IFileEditorInput) ei).getFile();
+					}
+					return null;
+				}
+			};
+		}
+		return null;
+	}
+
+	public Class[] getAdapterList() {
+		return new Class[] { IContributorResourceAdapter.class };
+	}
+}
\ No newline at end of file
Index: compare/org/eclipse/compare/internal/CompareEditor.java
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.compare/plugins/org.eclipse.compare/compare/org/eclipse/compare/internal/CompareEditor.java,v
retrieving revision 1.83
diff -u -r1.83 CompareEditor.java
--- compare/org/eclipse/compare/internal/CompareEditor.java	4 Mar 2010 16:26:05 -0000	1.83
+++ compare/org/eclipse/compare/internal/CompareEditor.java	9 Apr 2010 13:04:01 -0000
@@ -112,7 +112,7 @@
 		public void registerContextMenu(MenuManager menu, ISelectionProvider provider) {
 			if (getSite() instanceof IEditorSite) {
 				IEditorSite es = (IEditorSite) getSite();
-				es.registerContextMenu(menu, provider, false);
+				es.registerContextMenu(menu, provider, true);
 			}
 		}
 
Index: plugin.xml
===================================================================
RCS file: /cvsroot/eclipse/org.eclipse.compare/plugins/org.eclipse.compare/plugin.xml,v
retrieving revision 1.70
diff -u -r1.70 plugin.xml
--- plugin.xml	23 Mar 2009 14:10:49 -0000	1.70
+++ plugin.xml	9 Apr 2010 13:04:01 -0000
@@ -340,5 +340,15 @@
             class="org.eclipse.compare.internal.ComparePreferenceInitializer">
       </initializer>
    </extension>
+   <extension
+         point="org.eclipse.core.runtime.adapters">
+      <factory
+            adaptableType="org.eclipse.compare.CompareEditorInput"
+            class="org.eclipse.compare.internal.AdapterFactory">
+         <adapter
+               type="org.eclipse.ui.IContributorResourceAdapter">
+         </adapter>
+      </factory>
+   </extension>
 
 </plugin>