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      1 /*
      2  * This file is part of the XSL implementation.
      3  *
      4  * Copyright (C) 2004, 2007, 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 XSLTProcessor_h
     24 #define XSLTProcessor_h
     25 
     26 #include "bindings/core/v8/ScriptWrappable.h"
     27 #include "core/dom/Node.h"
     28 #include "core/xml/XSLStyleSheet.h"
     29 #include "platform/RuntimeEnabledFeatures.h"
     30 #include "wtf/HashMap.h"
     31 #include "wtf/text/StringHash.h"
     32 
     33 #include <libxml/parserInternals.h>
     34 #include <libxslt/documents.h>
     35 
     36 namespace blink {
     37 
     38 class LocalFrame;
     39 class Document;
     40 class DocumentFragment;
     41 
     42 class XSLTProcessor : public RefCountedWillBeGarbageCollectedFinalized<XSLTProcessor>, public ScriptWrappable {
     43     DEFINE_WRAPPERTYPEINFO();
     44 public:
     45     static PassRefPtrWillBeRawPtr<XSLTProcessor> create(Document& document)
     46     {
     47         ASSERT(RuntimeEnabledFeatures::xsltEnabled());
     48         return adoptRefWillBeNoop(new XSLTProcessor(document));
     49     }
     50     ~XSLTProcessor();
     51 
     52     void setXSLStyleSheet(PassRefPtrWillBeRawPtr<XSLStyleSheet> styleSheet) { m_stylesheet = styleSheet; }
     53     bool transformToString(Node* source, String& resultMIMEType, String& resultString, String& resultEncoding);
     54     PassRefPtrWillBeRawPtr<Document> createDocumentFromSource(const String& source, const String& sourceEncoding, const String& sourceMIMEType, Node* sourceNode, LocalFrame*);
     55 
     56     // DOM methods
     57     void importStylesheet(PassRefPtrWillBeRawPtr<Node> style)
     58     {
     59         if (style)
     60             m_stylesheetRootNode = style;
     61     }
     62     PassRefPtrWillBeRawPtr<DocumentFragment> transformToFragment(Node* source, Document* ouputDoc);
     63     PassRefPtrWillBeRawPtr<Document> transformToDocument(Node* source);
     64 
     65     void setParameter(const String& namespaceURI, const String& localName, const String& value);
     66     String getParameter(const String& namespaceURI, const String& localName) const;
     67     void removeParameter(const String& namespaceURI, const String& localName);
     68     void clearParameters() { m_parameters.clear(); }
     69 
     70     void reset();
     71 
     72     static void parseErrorFunc(void* userData, xmlError*);
     73     static void genericErrorFunc(void* userData, const char* msg, ...);
     74 
     75     // Only for libXSLT callbacks
     76     XSLStyleSheet* xslStylesheet() const { return m_stylesheet.get(); }
     77 
     78     typedef HashMap<String, String> ParameterMap;
     79 
     80     void trace(Visitor*);
     81 
     82 private:
     83     XSLTProcessor(Document& document)
     84         : m_document(&document)
     85     { }
     86 
     87     RefPtrWillBeMember<XSLStyleSheet> m_stylesheet;
     88     RefPtrWillBeMember<Node> m_stylesheetRootNode;
     89     RefPtrWillBeMember<Document> m_document;
     90     ParameterMap m_parameters;
     91 };
     92 
     93 } // namespace blink
     94 
     95 #endif // XSLTProcessor_h
     96