/*******************************************************************************
 * Copyright (c) 2009 the CHISEL group and contributors.
 * 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:
 *     the CHISEL group - initial API and implementation
 *******************************************************************************/
package ca.uvic.chisel.diver.mylyn.logger.logging;

import org.eclipse.ui.IPageListener;
import org.eclipse.ui.IWindowListener;
import org.eclipse.ui.IWorkbenchWindow;

/**
 * @author Del
 *
 */
public class WindowListener implements IWindowListener {
	IWorkbenchWindow activeWindow = null;
	IPageListener pageListener = new PageListener();
	/* (non-Javadoc)
	 * @see org.eclipse.ui.IWindowListener#windowActivated(org.eclipse.ui.IWorkbenchWindow)
	 */
	@Override
	public void windowActivated(IWorkbenchWindow window) {
		if (activeWindow != null) {
			activeWindow.removePageListener(pageListener);
		}
		if (window != null) {
			activeWindow = window;
			activeWindow.addPageListener(pageListener);
			pageListener.pageActivated(window.getActivePage());
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IWindowListener#windowDeactivated(org.eclipse.ui.IWorkbenchWindow)
	 */
	@Override
	public void windowDeactivated(IWorkbenchWindow window) {
		if (activeWindow != null) {
			activeWindow.removePageListener(pageListener);
			activeWindow = null;
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IWindowListener#windowClosed(org.eclipse.ui.IWorkbenchWindow)
	 */
	@Override
	public void windowClosed(IWorkbenchWindow window) {
		if (activeWindow != null) {
			activeWindow.removePageListener(pageListener);
			activeWindow = null;
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.ui.IWindowListener#windowOpened(org.eclipse.ui.IWorkbenchWindow)
	 */
	@Override
	public void windowOpened(IWorkbenchWindow window) {
		System.out.println("window opened");
	}

}