/*******************************************************************************
* Copyright (c) 2008, 2011 Eric Rizzo, IBM Corporation and others.
* 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:
* Eric Rizzo - initial API and implementation (see Bug 210255)
*******************************************************************************/
package org.eclipse.jdt.internal.ui.actions;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.ui.PlatformUI;
import org.eclipse.jdt.internal.ui.IJavaHelpContextIds;
import org.eclipse.jdt.internal.ui.JavaPluginImages;
/**
* An {@link Action} that will collapse all nodes in a given {@link TreeViewer}.
*
* @since 3.4
*/
public class CollapseAllAction extends Action {
private final TreeViewer fViewer;
public CollapseAllAction(TreeViewer viewer) {
super(ActionMessages.CollapsAllAction_label, JavaPluginImages.DESC_ELCL_COLLAPSEALL);
setToolTipText(ActionMessages.CollapsAllAction_tooltip);
setDescription(ActionMessages.CollapsAllAction_description);
PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.COLLAPSE_ALL_ACTION);
Assert.isNotNull(viewer);
fViewer= viewer;
}
@Override
public void run() {
try {
fViewer.getControl().setRedraw(false);
fViewer.collapseAll();
} finally {
fViewer.getControl().setRedraw(true);
}
}
}