/*******************************************************************************
* Copyright (c) 2008, 2009 Matthew Hall 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:
* Matthew Hall - initial API and implementation (bug 194734)
* Matthew Hall - bugs 263413, 264286
******************************************************************************/
package org.eclipse.jface.databinding.swt;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.property.list.SimpleListProperty;
import org.eclipse.jface.internal.databinding.swt.SWTObservableListDecorator;
import org.eclipse.swt.widgets.Widget;
/**
* Abstract list property implementation for {@link Widget} properties. This
* class implements some basic behavior that widget properties are generally
* expected to have, namely:
* <ul>
* <li>Calling {@link #observe(Object)} should create the observable on the
* display realm of the widget, rather than the current default realm
* <li>All <code>observe()</code> methods should return an
* {@link ISWTObservable}
* </ul>
*
* @since 1.3
*/
public abstract class WidgetListProperty extends SimpleListProperty implements
IWidgetListProperty {
public IObservableList observe(Object source) {
if (source instanceof Widget) {
return observe((Widget) source);
}
return super.observe(source);
}
public IObservableList observe(Realm realm, Object source) {
return new SWTObservableListDecorator(super.observe(realm, source),
(Widget) source);
}
public ISWTObservableList observe(Widget widget) {
return (ISWTObservableList) observe(SWTObservables.getRealm(widget
.getDisplay()), widget);
}
}