/*******************************************************************************
* Copyright (c) 2013 Dirk Fauth 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:
* Dirk Fauth <dirk.fauth@gmail.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.nebula.widgets.nattable.tree.command;
import org.eclipse.nebula.widgets.nattable.command.ILayerCommandHandler;
import org.eclipse.nebula.widgets.nattable.layer.ILayer;
import org.eclipse.nebula.widgets.nattable.tree.TreeLayer;
/**
* Command handler for the TreeCollapseAllCommand.
* <p>
* Will search over the whole tree structure in the associated TreeLayer to
* identify collapsible nodes and collapse them one after the other.
*
* @author Dirk Fauth
*
* @see TreeLayer
* @see TreeCollapseAllCommand
*/
public class TreeCollapseAllCommandHandler implements
ILayerCommandHandler<TreeCollapseAllCommand> {
/**
* The TreeLayer to which this command handler is connected.
*/
private final TreeLayer treeLayer;
/**
*
* @param treeLayer
* The TreeLayer to which this command handler should be
* connected.
*/
public TreeCollapseAllCommandHandler(TreeLayer treeLayer) {
this.treeLayer = treeLayer;
}
@Override
public boolean doCommand(ILayer targetLayer, TreeCollapseAllCommand command) {
this.treeLayer.collapseAll();
return true;
}
@Override
public Class<TreeCollapseAllCommand> getCommandClass() {
return TreeCollapseAllCommand.class;
}
}