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      1 /*
      2  * This file is part of the XSL implementation.
      3  *
      4  * Copyright (C) 2004, 2006, 2008 Apple Inc. All rights reserved.
      5  *
      6  * This library is free software; you can redistribute it and/or
      7  * modify it under the terms of the GNU Library General Public
      8  * License as published by the Free Software Foundation; either
      9  * version 2 of the License, or (at your option) any later version.
     10  *
     11  * This library is distributed in the hope that it will be useful,
     12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14  * Library General Public License for more details.
     15  *
     16  * You should have received a copy of the GNU Library General Public License
     17  * along with this library; see the file COPYING.LIB.  If not, write to
     18  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     19  * Boston, MA 02110-1301, USA.
     20  *
     21  */
     22 
     23 #ifndef XSLStyleSheet_h
     24 #define XSLStyleSheet_h
     25 
     26 #if ENABLE(XSLT)
     27 
     28 #include "StyleSheet.h"
     29 
     30 #if !USE(QXMLQUERY)
     31 #include <libxml/parser.h>
     32 #include <libxslt/transform.h>
     33 #endif
     34 
     35 #include <wtf/PassRefPtr.h>
     36 
     37 namespace WebCore {
     38 
     39 class DocLoader;
     40 class Document;
     41 class XSLImportRule;
     42 
     43 class XSLStyleSheet : public StyleSheet {
     44 public:
     45 #if !USE(QXMLQUERY)
     46     static PassRefPtr<XSLStyleSheet> create(XSLImportRule* parentImport, const String& originalURL, const KURL& finalURL)
     47     {
     48         return adoptRef(new XSLStyleSheet(parentImport, originalURL, finalURL));
     49     }
     50 #endif
     51     static PassRefPtr<XSLStyleSheet> create(Node* parentNode, const String& originalURL, const KURL& finalURL)
     52     {
     53         return adoptRef(new XSLStyleSheet(parentNode, originalURL, finalURL, false));
     54     }
     55     static PassRefPtr<XSLStyleSheet> createInline(Node* parentNode, const KURL& finalURL)
     56     {
     57         return adoptRef(new XSLStyleSheet(parentNode, finalURL.string(), finalURL, true));
     58     }
     59 
     60     virtual ~XSLStyleSheet();
     61 
     62     virtual bool isXSLStyleSheet() const { return true; }
     63 
     64     virtual String type() const { return "text/xml"; }
     65 
     66     virtual bool parseString(const String &string, bool strict = true);
     67 
     68     virtual bool isLoading();
     69     virtual void checkLoaded();
     70 
     71     void loadChildSheets();
     72     void loadChildSheet(const String& href);
     73 
     74     DocLoader* docLoader();
     75 
     76     Document* ownerDocument() { return m_ownerDocument; }
     77     void setParentStyleSheet(XSLStyleSheet* parent);
     78 
     79 #if USE(QXMLQUERY)
     80     String sheetString() const { return m_sheetString; }
     81 #else
     82     xmlDocPtr document();
     83     xsltStylesheetPtr compileStyleSheet();
     84     xmlDocPtr locateStylesheetSubResource(xmlDocPtr parentDoc, const xmlChar* uri);
     85 #endif
     86 
     87     void clearDocuments();
     88 
     89     void markAsProcessed();
     90     bool processed() const { return m_processed; }
     91 
     92 private:
     93     XSLStyleSheet(Node* parentNode, const String& originalURL, const KURL& finalURL, bool embedded);
     94 #if !USE(QXMLQUERY)
     95     XSLStyleSheet(XSLImportRule* parentImport, const String& originalURL, const KURL& finalURL);
     96 #endif
     97 
     98     Document* m_ownerDocument;
     99     bool m_embedded;
    100     bool m_processed;
    101 
    102 #if USE(QXMLQUERY)
    103     String m_sheetString;
    104 #else
    105     xmlDocPtr m_stylesheetDoc;
    106     bool m_stylesheetDocTaken;
    107 #endif
    108 
    109     XSLStyleSheet* m_parentStyleSheet;
    110 };
    111 
    112 } // namespace WebCore
    113 
    114 #endif // ENABLE(XSLT)
    115 
    116 #endif // XSLStyleSheet_h
    117