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1   /**********************************************
2    * Copyright (C) 2011 Lukas Laag
3    * This file is part of lib-gwt-svg.
4    * 
5    * libgwtsvg is free software: you can redistribute it and/or modify
6    * it under the terms of the GNU Lesser General Public License as published by
7    * the Free Software Foundation, either version 3 of the License, or
8    * (at your option) any later version.
9    * 
10   * libgwtsvg is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   * GNU Lesser General Public License for more details.
14   * 
15   * You should have received a copy of the GNU Lesser General Public License
16   * along with libgwtsvg.  If not, see http://www.gnu.org/licenses/
17   **********************************************/
18  package org.vectomatic.dom.svg.impl;
19  
20  import org.vectomatic.dom.svg.utils.DOMHelper;
21  import org.vectomatic.dom.svg.utils.ParserException;
22  import org.vectomatic.dom.svg.utils.XPathPrefixResolver;
23  
24  import com.google.gwt.dom.client.Element;
25  import com.google.gwt.dom.client.Text;
26  
27  /**
28   * Internal class to wrap DOM parser implementations for webkit based browsers
29   * @author laaglu
30   */
31  public class SVGParserImplWebkit extends SVGParserImpl {
32  	/**
33  	 * Parses the supplied SVG text into a document
34  	 * @param rawSvg
35  	 * raw xml to be parsed
36  	 * @return
37  	 * the document resulting from the parse
38  	 */
39  	public final SVGSVGElement parse(String rawSvg) throws ParserException {
40  		SVGDocument doc = parseFromString(rawSvg, "text/xml").cast();
41  		Element elt = doc.getDocumentElement();
42  		if ("parsererror".equals(DOMHelper.getLocalName(elt))) {
43  			String message = "Parsing error";
44  			if (elt.getFirstChild() != null) {
45  				message = elt.getFirstChild().<Text>cast().getData();
46  			}
47  			throw new ParserException(ParserException.Type.NotWellFormed, message);
48  		} else if ("html".equals(DOMHelper.getLocalName(elt))) {
49  			String message = DOMHelper.evaluateStringXPath(elt, "./x:body/x:parsererror/x:div/text()", new XPathPrefixResolver() {
50  				@Override
51  				public String resolvePrefix(String prefix) {
52  					if ("x".equals(prefix)) {
53  						return "http://www.w3.org/1999/xhtml";
54  					}
55  					return null;
56  				}
57  			});
58  			throw new ParserException(ParserException.Type.NotWellFormed, message);
59  		}
60  		SVGSVGElement svg = DOMHelper.importNode(DOMHelper.getCurrentDocument(), elt, true).cast();
61  		// For some reason xlink:href are not correctly evaluated in
62  		// some cases in mozilla. If one clones the node this seems
63  		// to solve the problem
64      	return svg.cloneNode(true).<SVGSVGElement>cast();
65  	}
66  
67  }