com.google.gwt.user.client.ui.ResizeComposite Maven / Gradle / Ivy
/*
* Copyright 2009 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.user.client.ui;
/**
* A {@link Composite} implementation that implements {@link RequiresResize} and
* automatically delegates that interface's methods to its wrapped widget, which
* must itself implement {@link RequiresResize}.
*/
public abstract class ResizeComposite extends Composite implements
RequiresResize {
@Override
protected void initWidget(Widget widget) {
assert widget instanceof RequiresResize :
"ResizeComposite requires that its wrapped widget implement RequiresResize";
super.initWidget(widget);
}
public void onResize() {
((RequiresResize) getWidget()).onResize();
}
}