user/src/com/google/gwt/user/client/impl/WindowImplOpera.java

/*
 * Copyright 2008 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.impl;

import com.google.gwt.user.client.Element;

/**
 * Opera implementation of {@link com.google.gwt.user.client.impl.WindowImpl}.
 */
public class WindowImplOpera extends WindowImpl {
  @SuppressWarnings("unused")
  private static Element body;
  
  /**
   * In standards mode, on Opera 9.5 (and presumably, above), the clientHeight
   * and clientWidth are defined on doc.documentElement instead of doc.body.
   */  
  @SuppressWarnings("unused")
  private static native Element getBodyElement() /*-{
    if (@com.google.gwt.user.client.impl.WindowImplOpera::body == null) {
      @com.google.gwt.user.client.impl.WindowImplOpera::body =
        ($doc.compatMode == 'CSS1Compat' && opera.version() >= 9.5) ?
        $doc.documentElement : $doc.body;
    }       
    return @com.google.gwt.user.client.impl.WindowImplOpera::body;
  }-*/;

  @Override
  public native int getClientHeight() /*-{
    return @com.google.gwt.user.client.impl.WindowImplOpera::getBodyElement()().clientHeight;
  }-*/;  
  
  @Override
  public native int getClientWidth() /*-{
    return @com.google.gwt.user.client.impl.WindowImplOpera::getBodyElement()().clientWidth;
  }-*/; 
}