DrillDownAction.java

/* ******************************************************************************
 * 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.eclipse.jface.viewers.ISelection;
import org.xmind.gef.ui.actions.ISelectionAction;
import org.xmind.gef.ui.actions.RequestAction;
import org.xmind.gef.ui.editor.IGraphicalEditorPage;
import org.xmind.ui.actions.MindMapActionFactory;
import org.xmind.ui.internal.MindMapUIPlugin;
import org.xmind.ui.mindmap.MindMapUI;
import org.xmind.ui.util.MindMapUtils;

public class DrillDownAction extends RequestAction implements ISelectionAction {

    public DrillDownAction(IGraphicalEditorPage page) {
        super(MindMapActionFactory.DRILL_DOWN.getId(), page,
                MindMapUI.REQ_DRILLDOWN);
    }

    public void setSelection(ISelection selection) {
        setEnabled(MindMapUtils.isSingleTopic(selection)
                && !MindMapUtils.hasCentralTopic(selection, getViewer()));
    }

    @Override
    public void run() {
        MindMapUIPlugin.getDefault().getUsageDataCollector()
                .increase("DrillDownCount"); //$NON-NLS-1$
        super.run();
    }

}