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1   /**********************************************
2    * Copyright (C) 2010 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.SVGConstants;
23  
24  import com.google.gwt.core.client.JavaScriptObject;
25  import com.google.gwt.dom.client.Document;
26  import com.google.gwt.dom.client.Element;
27  import com.google.gwt.dom.client.Text;
28  
29  public class SVGParserImpl {
30  	@SuppressWarnings("unused")
31  	private final JavaScriptObject domParser = createDOMParser();
32  	
33  	private native JavaScriptObject createDOMParser() /*-{
34  	  return new DOMParser();
35  	}-*/;
36  
37  	public final native Document parseFromString(String rawText, String contentType) /*-{
38        return this.@org.vectomatic.dom.svg.impl.SVGParserImpl::domParser.parseFromString(rawText, contentType);
39  	}-*/;
40  
41  	/**
42  	 * Parses the supplied SVG text into a document
43  	 * @param rawSvg
44  	 * raw xml to be parsed
45  	 * @return
46  	 * the document resulting from the parse
47  	 */
48  	public SVGSVGElement parse(String rawSvg) throws ParserException {
49  		SVGDocument doc = parseFromString(rawSvg, "text/xml").cast();
50  		Element elt = doc.getDocumentElement();
51  		if ("parsererror".equals(DOMHelper.getLocalName(elt))) {
52  			String message = "Parsing error";
53  			if (elt.getFirstChild() != null) {
54  				message = elt.getFirstChild().<Text>cast().getData();
55  			}
56  			throw new ParserException(ParserException.Type.NotWellFormed, message);
57  		}
58  		return DOMHelper.importNode(DOMHelper.getCurrentDocument(), elt, true).<SVGSVGElement>cast();
59  	}
60  
61  }