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/*******************************************************************************
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* Copyright (c) 2000, 2010 IBM Corporation and others.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*******************************************************************************/
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package org.eclipse.gef.editpolicies;
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import org.eclipse.gef.commands.Command;
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import org.eclipse.gef.commands.UnexecutableCommand;
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import org.eclipse.gef.requests.GroupRequest;
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/**
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* The <i>root</i> component cannot be removed from its parent. This EditPolicy
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* is typically installed on the Viewer's
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* {@link org.eclipse.gef.EditPartViewer#getContents() contents}.
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*/
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public class RootComponentEditPolicy extends ComponentEditPolicy {
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/**
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* Overridden to prevent the host from being deleted.
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*
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* @see org.eclipse.gef.editpolicies.ComponentEditPolicy#createDeleteCommand(GroupRequest)
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*/
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protected Command createDeleteCommand(GroupRequest request) {
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return UnexecutableCommand.INSTANCE;
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}
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}
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