| /* |
| * Copyright 2011 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.dom.client; |
| |
| /** |
| * WebKit based implementation of {@link com.google.gwt.dom.client.DOMImplStandardBase}. |
| */ |
| class DOMImplWebkit extends DOMImplStandardBase { |
| |
| /** |
| * Return true if using Webkit 525.x (Safari 3) or earlier. |
| * |
| * @return true if using Webkit 525.x (Safari 3) or earlier. |
| */ |
| private static native boolean isWebkit525OrBefore() /*-{ |
| var result = /safari\/([\d.]+)/.exec(navigator.userAgent.toLowerCase()); |
| if (result) { |
| var version = (parseFloat(result[1])); |
| if (version < 526) { |
| return true; |
| } |
| } |
| return false; |
| }-*/; |
| |
| /** |
| * Webkit events sometimes target the text node inside of the element instead |
| * of the element itself, so we need to get the parent of the text node. |
| */ |
| @Override |
| public native EventTarget eventGetTarget(NativeEvent evt) /*-{ |
| var target = evt.target; |
| if (target && target.nodeType == 3) { |
| target = target.parentNode; |
| } |
| return target; |
| }-*/; |
| |
| /** |
| * Webkit based browsers require that we set the webkit-user-drag style |
| * attribute to make an element draggable. |
| */ |
| @Override |
| public void setDraggable(Element elem, String draggable) { |
| super.setDraggable(elem, draggable); |
| if ("true".equals(draggable)) { |
| elem.getStyle().setProperty("webkitUserDrag", "element"); |
| } else { |
| elem.getStyle().clearProperty("webkitUserDrag"); |
| } |
| } |
| |
| @Override |
| Element getLegacyDocumentScrollingElement(Document doc) { |
| // Old WebKit needs body.scrollLeft in both quirks mode and strict mode. |
| return doc.getBody(); |
| } |
| } |
| |