/******************************************************************************* | |
* Copyright (c) 2006, 2010 Soyatec (http://www.soyatec.com) 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: * | |
* Soyatec - initial API and implementation * | |
*******************************************************************************/ | |
package org.eclipse.xwt.internal.databinding.menuitem; | |
import org.eclipse.core.databinding.observable.Realm; | |
import org.eclipse.core.databinding.observable.value.AbstractObservableValue; | |
import org.eclipse.jface.databinding.swt.SWTObservables; | |
import org.eclipse.swt.events.DisposeEvent; | |
import org.eclipse.swt.events.DisposeListener; | |
import org.eclipse.swt.widgets.MenuItem; | |
/** | |
* | |
* @author yyang (yves.yang@soyatec.com) | |
*/ | |
public abstract class AbstractMenuItemObservableValue extends AbstractObservableValue { | |
private final MenuItem menuItem; | |
/** | |
* Standard constructor for a MenuItem ObservableValue. Makes sure that the observable gets disposed when the MenuItem is disposed. | |
* | |
* @param widget | |
*/ | |
protected AbstractMenuItemObservableValue(MenuItem menuItem) { | |
this(SWTObservables.getRealm(menuItem.getDisplay()), menuItem); | |
} | |
/** | |
* Constructor that allows for the setting of the realm. Makes sure that the observable gets disposed when the MenuItem is disposed. | |
* | |
* @param realm | |
* @param widget | |
* @since 1.2 | |
*/ | |
protected AbstractMenuItemObservableValue(Realm realm, MenuItem menuItem) { | |
super(realm); | |
this.menuItem = menuItem; | |
menuItem.addDisposeListener(disposeListener); | |
} | |
private DisposeListener disposeListener = new DisposeListener() { | |
public void widgetDisposed(DisposeEvent e) { | |
AbstractMenuItemObservableValue.this.dispose(); | |
} | |
}; | |
/** | |
* @return Returns the MenuItem. | |
*/ | |
public MenuItem getMenuItem() { | |
return menuItem; | |
} | |
} |