/*
* 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.ui.impl;
import com.google.gwt.user.client.Event;
/**
* HyperlinkImpl for Safari and Google Chrome. Safari has special behavior for
* all the modifier keys except shift, which behaves like a regular click.
* Chrome, however, opens a new window on a shift-click.
*/
public class HyperlinkImplSafari extends HyperlinkImpl {
private static boolean shiftIsModifier = onChrome();
private static native boolean onChrome() /*-{
return navigator.userAgent.indexOf("Chrome") != -1;
}-*/;
@Override
public boolean handleAsClick(Event event) {
int mouseButtons = event.getButton();
boolean alt = event.getAltKey();
boolean ctrl = event.getCtrlKey();
boolean meta = event.getMetaKey();
boolean shift = event.getShiftKey();
boolean middle = mouseButtons == Event.BUTTON_MIDDLE;
boolean right = mouseButtons == Event.BUTTON_RIGHT;
boolean modifiers = alt || ctrl || meta;
if (shiftIsModifier) {
modifiers |= shift;
}
return !modifiers && !middle && !right;
}
}