1 files changed, 68 insertions, 0 deletions
diff --git a/plugins/customization/org.eclipse.papyrus.customization.properties/src/org/eclipse/papyrus/customization/properties/editor/actions/TogglePreviewAction.java b/plugins/customization/org.eclipse.papyrus.customization.properties/src/org/eclipse/papyrus/customization/properties/editor/actions/TogglePreviewAction.java
new file mode 100644
index 00000000000..621a14fa8f0
--- /dev/null
+++ b/plugins/customization/org.eclipse.papyrus.customization.properties/src/org/eclipse/papyrus/customization/properties/editor/actions/TogglePreviewAction.java
@@ -0,0 +1,68 @@
+/*****************************************************************************
+ * Copyright (c) 2011 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:
+ *  Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
+ *****************************************************************************/
+package org.eclipse.papyrus.customization.properties.editor.actions;
+
+import org.eclipse.core.commands.AbstractHandler;
+import org.eclipse.core.commands.ExecutionEvent;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.papyrus.customization.properties.Activator;
+import org.eclipse.ui.IViewReference;
+import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.part.ViewPart;
+
+/**
+ * An action to toggle the UIEditor Preview
+ * 
+ * @author Camille Letavernier
+ */
+public class TogglePreviewAction extends AbstractHandler {
+
+	public Object execute(ExecutionEvent event) throws ExecutionException {
+
+		//System.out.println("Toggle");
+
+		event.getCommand().getState("org.eclipse.papyrus.customization.properties.previewstate"); //$NON-NLS-1$
+
+		IWorkbenchPage activePage = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage();
+		if(activePage == null) {
+			return null;
+		}
+
+		//System.out.println("ActivePage is " + activePage);
+
+		IViewReference viewReference = null;
+
+		for(IViewReference reference : activePage.getViewReferences()) {
+			if(reference.getId().equals(Activator.PREVIEW_ID)) {
+				viewReference = reference;
+			}
+		}
+
+		try {
+			if(viewReference == null) {
+				//System.out.println("Opening view");
+				activePage.showView(Activator.PREVIEW_ID);
+			} else {
+				//System.out.println("Closing view");
+				activePage.hideView((ViewPart)viewReference.getPart(false));
+			}
+		} catch (PartInitException ex) {
+			Activator.log.error(ex);
+		}
+
+		return null;
+	}
+
+
+}