| /* |
| * 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(); |
| } |
| } |