/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.ui.internal.actions;
import org.xmind.gef.ui.actions.RequestAction;
import org.xmind.gef.ui.editor.IGraphicalEditorPage;
import org.xmind.ui.actions.MindMapActionFactory;
import org.xmind.ui.mindmap.IDrillDownTraceListener;
import org.xmind.ui.mindmap.IDrillDownTraceService;
import org.xmind.ui.mindmap.MindMapUI;
public class DrillUpAction extends RequestAction implements
IDrillDownTraceListener {
private IDrillDownTraceService traceService;
public DrillUpAction(IGraphicalEditorPage page) {
super(MindMapActionFactory.DRILL_UP.getId(), page,
MindMapUI.REQ_DRILLUP);
}
public void setTraceService(IDrillDownTraceService traceService) {
if (this.traceService != null) {
this.traceService.removeTraceListener(this);
}
this.traceService = traceService;
if (traceService != null) {
traceService.addTraceListener(this);
}
}
public void traceChanged(IDrillDownTraceService traceService) {
setEnabled(traceService.canDrillUp());
}
public void dispose() {
if (traceService != null) {
traceService.removeTraceListener(this);
traceService = null;
}
super.dispose();
}
}