1/* 2 * This file is part of the XSL implementation. 3 * 4 * Copyright (C) 2004, 2006, 2008, 2012 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 "ProcessingInstruction.h" 29#include "StyleSheet.h" 30 31#if !USE(QXMLQUERY) 32#include <libxml/parser.h> 33#include <libxslt/transform.h> 34#endif 35 36#include <wtf/PassRefPtr.h> 37 38namespace WebCore { 39 40class CachedResourceLoader; 41class XSLImportRule; 42 43class XSLStyleSheet : public StyleSheet { 44public: 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(ProcessingInstruction* parentNode, const String& originalURL, const KURL& finalURL) 52 { 53 return adoptRef(new XSLStyleSheet(parentNode, originalURL, finalURL, false)); 54 } 55 static PassRefPtr<XSLStyleSheet> createEmbedded(ProcessingInstruction* parentNode, const KURL& finalURL) 56 { 57 return adoptRef(new XSLStyleSheet(parentNode, finalURL.string(), finalURL, true)); 58 } 59 60 // Taking an arbitrary node is unsafe, because owner node pointer can become stale. 61 // XSLTProcessor ensures that the stylesheet doesn't outlive its parent, in part by not exposing it to JavaScript. 62 static PassRefPtr<XSLStyleSheet> createForXSLTProcessor(Node* parentNode, const String& originalURL, const KURL& finalURL) 63 { 64 return adoptRef(new XSLStyleSheet(parentNode, originalURL, finalURL, false)); 65 } 66 67 virtual ~XSLStyleSheet(); 68 69 bool parseString(const String&); 70 71 void checkLoaded(); 72 73 const KURL& finalURL() const { return m_finalURL; } 74 75 void loadChildSheets(); 76 void loadChildSheet(const String& href); 77 78 CachedResourceLoader* cachedResourceLoader(); 79 80 Document* ownerDocument(); 81 virtual XSLStyleSheet* parentStyleSheet() const OVERRIDE { return m_parentStyleSheet; } 82 void setParentStyleSheet(XSLStyleSheet* parent); 83 84#if USE(QXMLQUERY) 85 String sheetString() const { return m_sheetString; } 86#else 87 xmlDocPtr document(); 88 xsltStylesheetPtr compileStyleSheet(); 89 xmlDocPtr locateStylesheetSubResource(xmlDocPtr parentDoc, const xmlChar* uri); 90#endif 91 92 void clearDocuments(); 93 94 void markAsProcessed(); 95 bool processed() const { return m_processed; } 96 97 virtual String type() const OVERRIDE { return "text/xml"; } 98 virtual bool disabled() const OVERRIDE { return m_isDisabled; } 99 virtual void setDisabled(bool b) OVERRIDE { m_isDisabled = b; } 100 virtual Node* ownerNode() const OVERRIDE { return m_ownerNode; } 101 virtual String href() const OVERRIDE { return m_originalURL; } 102 virtual String title() const OVERRIDE { return emptyString(); } 103 104 virtual void clearOwnerNode() OVERRIDE { m_ownerNode = 0; } 105 virtual KURL baseURL() const OVERRIDE { return m_finalURL; } 106 virtual bool isLoading() const OVERRIDE; 107 108 virtual bool isXSLStyleSheet() const OVERRIDE { return true; } 109 110private: 111 XSLStyleSheet(Node* parentNode, const String& originalURL, const KURL& finalURL, bool embedded); 112#if !USE(QXMLQUERY) 113 XSLStyleSheet(XSLImportRule* parentImport, const String& originalURL, const KURL& finalURL); 114#endif 115 116 Node* m_ownerNode; 117 String m_originalURL; 118 KURL m_finalURL; 119 bool m_isDisabled; 120 121 Vector<OwnPtr<XSLImportRule> > m_children; 122 123 bool m_embedded; 124 bool m_processed; 125 126#if USE(QXMLQUERY) 127 String m_sheetString; 128#else 129 xmlDocPtr m_stylesheetDoc; 130 bool m_stylesheetDocTaken; 131#endif 132 133 XSLStyleSheet* m_parentStyleSheet; 134}; 135 136} // namespace WebCore 137 138#endif // ENABLE(XSLT) 139 140#endif // XSLStyleSheet_h 141