/*
* Copyright 2007 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.impl;
import com.google.gwt.user.client.Element;
/**
* Implementation of {@link com.google.gwt.user.client.ui.impl.FocusImpl}
* for IE that traps invalid focus attempts to match other browsers.
*/
public class FocusImplIE6 extends FocusImpl {
@Override
public native void focus(Element elem) /*-{
try {
elem.focus();
} catch (e) {
// Only trap the exception if the attempt was mostly legit
if (!elem || !elem.focus) {
// Rethrow the probable NPE or invalid type
throw e;
}
}
}-*/;
}