1 files changed, 89 insertions, 0 deletions
diff --git a/extraplugins/uml/compare/org.eclipse.papyrus.uml.compare.ui/src/org/eclipse/papyrus/uml/compare/ui/actions/CompareInEditor.java b/extraplugins/uml/compare/org.eclipse.papyrus.uml.compare.ui/src/org/eclipse/papyrus/uml/compare/ui/actions/CompareInEditor.java
new file mode 100644
index 00000000000..6ca87c291eb
--- /dev/null
+++ b/extraplugins/uml/compare/org.eclipse.papyrus.uml.compare.ui/src/org/eclipse/papyrus/uml/compare/ui/actions/CompareInEditor.java
@@ -0,0 +1,89 @@
+/*****************************************************************************
+ * Copyright (c) 2015 CEA LIST.
+ *
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *  CEA LIST - Initial API and implementation
+ *  Shuai Li - shuai.li@cea.fr
+ *
+ *****************************************************************************/
+
+package org.eclipse.papyrus.uml.compare.ui.actions;
+
+import java.util.Iterator;
+
+import org.eclipse.compare.CompareEditorInput;
+import org.eclipse.compare.CompareUI;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.emf.common.notify.AdapterFactory;
+import org.eclipse.emf.common.notify.Notifier;
+import org.eclipse.emf.compare.ide.ui.internal.EMFCompareIDEUIMessages;
+import org.eclipse.emf.compare.ide.ui.internal.handler.AbstractCompareHandler;
+import org.eclipse.emf.compare.ide.ui.internal.handler.SelectAncestorDialog;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.emf.edit.provider.ComposedAdapterFactory;
+import org.eclipse.jface.dialogs.MessageDialog;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.window.Window;
+import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+public class CompareInEditor extends AbstractCompareHandler {
+
+	public Object execute(ExecutionEvent event) throws ExecutionException {
+		AdapterFactory adapterFactory = new ComposedAdapterFactory(ComposedAdapterFactory.Descriptor.Registry.INSTANCE);
+
+		final IWorkbenchPart activePart = HandlerUtil.getActivePart(event);
+		final ISelection selection = HandlerUtil.getCurrentSelection(event);
+
+		if (selection instanceof IStructuredSelection) {
+			Iterator<?> selectionIterator = ((IStructuredSelection) selection).iterator();
+			Notifier left = null;
+			Notifier right = null;
+			Notifier origin = null;
+
+			left = (Notifier) EMFHelper.getEObject(selectionIterator.next());
+			if (selectionIterator.hasNext()) {
+				right = (Notifier) EMFHelper.getEObject(selectionIterator.next());
+			}
+			if (selectionIterator.hasNext()) {
+				origin = (Notifier) EMFHelper.getEObject(selectionIterator.next());
+			}
+
+			if (origin != null) {
+				Shell shell = HandlerUtil.getActiveShell(event);
+				SelectAncestorDialog dialog = new SelectAncestorDialog(shell, adapterFactory, new Notifier[] {left, right, origin});
+				if (dialog.open() == Window.CANCEL) {
+					return null;
+				} else {
+//					left = dialog.leftNotifier;
+//					right = dialog.rightNotifier;
+//					origin = dialog.originNotifier;
+					// TODO
+				}
+			}
+
+			// Do not compare an object with its ancestor (e.g. operation with its owner class).
+			if (left instanceof EObject
+					&& right instanceof EObject
+					&& (EcoreUtil.isAncestor((EObject) left, (EObject) right) || EcoreUtil.isAncestor((EObject) right, (EObject) left))) {
+				MessageDialog.openInformation(activePart.getSite().getShell(), "EMF Compare", EMFCompareIDEUIMessages.getString("CompareSelfWithAncestor"));
+			} else {
+				final CompareEditorInput input = createCompareEditorInput(activePart, adapterFactory, left, right, origin);
+				CompareUI.openCompareEditor(input);
+			}
+		}
+		
+		return null;
+	}
+}