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/*******************************************************************************
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* Copyright (c) 2003, 2008 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.ui.internal.navigator.actions;
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import org.eclipse.jface.action.Action;
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import org.eclipse.ui.handlers.CollapseAllHandler;
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import org.eclipse.ui.internal.navigator.CommonNavigatorMessages;
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import org.eclipse.ui.navigator.CommonViewer;
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/**
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* This action delegate collapses all expanded elements in a Navigator view.
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*
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*/
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public class CollapseAllAction extends Action {
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private final CommonViewer commonViewer;
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/**
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* Create the CollapseAll action.
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*
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* @param aViewer
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* The viewer to be collapsed.
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*/
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public CollapseAllAction(CommonViewer aViewer) {
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super(CommonNavigatorMessages.CollapseAllActionDelegate_0);
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setToolTipText(CommonNavigatorMessages.CollapseAllActionDelegate_0);
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setActionDefinitionId(CollapseAllHandler.COMMAND_ID);
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commonViewer = aViewer;
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}
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public void run() {
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if (commonViewer != null) {
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commonViewer.collapseAll();
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}
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}
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}
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