Bug 257723 [Mac] Menu items "About Eclipse SDk" and "Preferences" of Top menu "Eclipse" not disable after show the dialog of "About Eclipse SDK"
bundles/org.eclipse.ui.cocoa/src/org/eclipse/ui/internal/cocoa/CocoaUIEnhancer.java
/*******************************************************************************
 * Copyright (c) 2008 Adobe Systems, Inc. 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:
 *     Adobe Systems, Inc. - initial API and implementation
 *     IBM Corporation - cleanup
 *******************************************************************************/
package org.eclipse.ui.internal.cocoa;
import java.text.*;
import java.util.*;
import org.eclipse.core.commands.*;
import org.eclipse.core.commands.common.*;
import org.eclipse.core.runtime.*;
import org.eclipse.core.runtime.Platform;
import org.eclipse.jface.action.*;
import org.eclipse.swt.*;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.cocoa.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.ui.*;
import org.eclipse.ui.handlers.*;
import org.eclipse.ui.internal.*;
/**
 * The CocoaUIEnhancer provides the standard "About" and "Preference" menu items