| /* |
| * 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; |
| |
| /** |
| * IE version of HyperlinkImpl. IE6 and IE7 actually have different |
| * behavior; both have special behavior for shift-click, but IE7 also opens |
| * in a new tab on ctrl-click. IE6 treats ctrl-click as a standard click. |
| */ |
| public class HyperlinkImplIE extends HyperlinkImpl { |
| |
| private static boolean ctrlisModifier = (getInternetExplorerVersion() >= 7); |
| |
| /** |
| * Returns the version of Internet Explorer or a -1, (indicating the use of |
| * another browser). Based on code from MSDN. |
| * http://msdn2.microsoft.com/en-us/library/ms537509.aspx |
| */ |
| private static native int getInternetExplorerVersion() /*-{ |
| var rv = -1; // Assume that we're not IE. |
| |
| if (navigator.appName == 'Microsoft Internet Explorer') { |
| var ua = navigator.userAgent; |
| var re = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})"); |
| if (re.exec(ua) != null) |
| rv = parseFloat( RegExp.$1 ); |
| } |
| |
| return rv; |
| }-*/; |
| |
| @Override |
| public boolean handleAsClick(Event event) { |
| int mouseButtons = event.getButton(); |
| boolean ctrl = event.getCtrlKey(); |
| boolean shift = event.getShiftKey(); |
| boolean middle = mouseButtons == Event.BUTTON_MIDDLE; |
| boolean right = mouseButtons == Event.BUTTON_RIGHT; |
| boolean modifiers; |
| |
| if (ctrlisModifier) { |
| modifiers = shift || ctrl; |
| } else { |
| modifiers = shift; |
| } |
| |
| return !modifiers && !middle && !right; |
| } |
| } |