/**
 * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the Eclipse Public License (EPL).
 * Please see the license.txt included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
/*
 * Created on Jul 20, 2004
 *
 * @author Fabio Zadrozny
 */
package org.python.pydev.editor.actions;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.ui.IEditorActionDelegate;
import org.eclipse.ui.IEditorPart;
import org.python.pydev.core.ExtensionHelper;

/**
 * @author Fabio Zadrozny
 */
public class PyShowOutline extends PyAction {

    protected IEditorActionDelegate registered;

    /* (non-Javadoc)
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public void run(IAction action) {
        IEditorActionDelegate participant = getParticipant();
        if (participant != null) {
            participant.run(action);
        }
    }

    public void setActiveEditor(IAction action, IEditorPart targetEditor) {
        IEditorActionDelegate participant = getParticipant();
        if (participant != null) {
            participant.setActiveEditor(action, targetEditor);
        }
    }

    @Override
    public void selectionChanged(IAction action, ISelection selection) {
        IEditorActionDelegate participant = getParticipant();
        if (participant != null) {
            participant.selectionChanged(action, selection);
        }
    }

    protected IEditorActionDelegate getParticipant() {
        if (registered != null) {
            return registered;
        }

        registered = (IEditorActionDelegate) ExtensionHelper.getParticipant(getExtensionName(), false);
        return registered;
    }

    protected String getExtensionName() {
        return ExtensionHelper.PYDEV_QUICK_OUTLINE;
    }

}