/*******************************************************************************
 * Copyright (c) 2007 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/

package org.eclipse.ui.internal;

import org.eclipse.core.expressions.PropertyTester;

/**
 * Tests various workbench window properties.
 * 
 * @since 3.3
 * 
 */
public class WorkbenchWindowPropertyTester extends PropertyTester {

	private static final String PROPERTY_IS_COOLBAR_VISIBLE = "isCoolbarVisible"; //$NON-NLS-1$
	private static final String PROPERTY_IS_PERSPECTIVEBAR_VISIBLE = "isPerspectiveBarVisible"; //$NON-NLS-1$

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.expressions.IPropertyTester#test(java.lang.Object,
	 *      java.lang.String, java.lang.Object[], java.lang.Object)
	 */
	public boolean test(Object receiver, String property, Object[] args,
			Object expectedValue) {
		
		if (args.length == 0 && receiver instanceof WorkbenchWindow) {
			boolean defaultExpectedValue = true;
			if (expectedValue != null) {
				if (expectedValue instanceof Boolean)
					defaultExpectedValue = ((Boolean) expectedValue).booleanValue();
				else
					return false; // cant work with anything else
			}
			final WorkbenchWindow window = (WorkbenchWindow) receiver;
			if (PROPERTY_IS_COOLBAR_VISIBLE.equals(property)) {
				return defaultExpectedValue == window.getCoolBarVisible();
			} else if (PROPERTY_IS_PERSPECTIVEBAR_VISIBLE.equals(property)) {
				return defaultExpectedValue == window.getPerspectiveBarVisible();
			}
		}
		return false;
	}
}