| /* |
| * 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.xml.client.impl; |
| |
| import com.google.gwt.core.client.JavaScriptObject; |
| |
| /** |
| * This class is the IE6 implementation of the XMLParser interface. |
| */ |
| class XMLParserImplIE6 extends XMLParserImpl { |
| |
| /** |
| * Called from JSNI to select a DOM document; this is necessary due to |
| * different versions of IE and Windows having different available DOM |
| * implementations. |
| */ |
| private static native JavaScriptObject selectDOMDocumentVersion() /*-{ |
| try { return new ActiveXObject("Msxml2.DOMDocument"); } catch (e) { } |
| try { return new ActiveXObject("MSXML.DOMDocument"); } catch (e) { } |
| try { return new ActiveXObject("MSXML3.DOMDocument"); } catch (e) { } |
| try { return new ActiveXObject("Microsoft.XmlDom"); } catch (e) { } |
| try { return new ActiveXObject("Microsoft.DOMDocument"); } catch (e) { } |
| |
| throw new Error("XMLParserImplIE6.createDocumentImpl: Could not find appropriate version of DOMDocument."); |
| }-*/; |
| |
| @Override |
| protected native JavaScriptObject createDocumentImpl() /*-{ |
| var doc = @com.google.gwt.xml.client.impl.XMLParserImplIE6::selectDOMDocumentVersion()(); |
| // preserveWhiteSpace is set to true here to prevent IE from throwing away |
| // text nodes that consist of only whitespace characters. This makes it |
| // act more like other browsers. |
| doc.preserveWhiteSpace = true; |
| doc.setProperty("SelectionNamespaces", "xmlns:xsl='http://www.w3.org/1999/XSL/Transform'"); |
| doc.setProperty("SelectionLanguage", "XPath"); |
| return doc; |
| }-*/; |
| |
| @Override |
| protected native JavaScriptObject getElementByIdImpl(JavaScriptObject o, |
| String elementId) /*-{ |
| return o.nodeFromID(elementId); |
| }-*/; |
| |
| @Override |
| protected native JavaScriptObject getElementsByTagNameImpl(JavaScriptObject o, |
| String tagName) /*-{ |
| return o.selectNodes(".//*[local-name()='" + tagName + "']"); |
| }-*/; |
| |
| @Override |
| protected native String getPrefixImpl(JavaScriptObject jsObject) /*-{ |
| return jsObject.prefix; |
| }-*/; |
| |
| @Override |
| protected native JavaScriptObject importNodeImpl(JavaScriptObject o, |
| JavaScriptObject importedNode, boolean deep) /*-{ |
| // IE6 does not seem to need or want nodes to be imported |
| // as appends from different docs work perfectly |
| // and this method is not supplied until MSXML5.0 |
| return importedNode; |
| }-*/; |
| |
| @Override |
| protected native JavaScriptObject parseImpl(String contents) /*-{ |
| var doc = this.@com.google.gwt.xml.client.impl.XMLParserImplIE6::createDocumentImpl()(); |
| if(!doc.loadXML(contents)) { |
| var err = doc.parseError; |
| throw new Error("line " + err.line + ", char " + err.linepos + ":" + err.reason); |
| } else { |
| return doc; |
| } |
| }-*/; |
| |
| @Override |
| protected String toStringImpl(ProcessingInstructionImpl node) { |
| return toStringImpl((NodeImpl) node); |
| } |
| |
| @Override |
| protected native String toStringImpl(NodeImpl node) /*-{ |
| var jsNode = node.@com.google.gwt.xml.client.impl.DOMItem::getJsObject()(); |
| return jsNode.xml; |
| }-*/; |
| } |