1 /* 2 * Copyright (C) 2008 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 * 19 */ 20 21 #ifndef ScriptElement_h 22 #define ScriptElement_h 23 24 #include "CachedResourceClient.h" 25 #include "CachedResourceHandle.h" 26 27 namespace WebCore { 28 29 class CachedScript; 30 class Element; 31 class ScriptElementData; 32 class ScriptSourceCode; 33 34 class ScriptElement { 35 public: 36 ScriptElement() { } 37 virtual ~ScriptElement() { } 38 39 virtual String scriptContent() const = 0; 40 41 virtual String sourceAttributeValue() const = 0; 42 virtual String charsetAttributeValue() const = 0; 43 virtual String typeAttributeValue() const = 0; 44 virtual String languageAttributeValue() const = 0; 45 virtual String forAttributeValue() const = 0; 46 47 virtual void dispatchLoadEvent() = 0; 48 virtual void dispatchErrorEvent() = 0; 49 50 // A charset for loading the script (may be overridden by HTTP headers or a BOM). 51 virtual String scriptCharset() const = 0; 52 53 virtual bool shouldExecuteAsJavaScript() const = 0; 54 55 protected: 56 // Helper functions used by our parent classes. 57 static void insertedIntoDocument(ScriptElementData&, const String& sourceUrl); 58 static void removedFromDocument(ScriptElementData&); 59 static void childrenChanged(ScriptElementData&); 60 static void finishParsingChildren(ScriptElementData&, const String& sourceUrl); 61 static void handleSourceAttribute(ScriptElementData&, const String& sourceUrl); 62 }; 63 64 // HTML/SVGScriptElement hold this struct as member variable 65 // and pass it to the static helper functions in ScriptElement 66 class ScriptElementData : private CachedResourceClient { 67 public: 68 ScriptElementData(ScriptElement*, Element*); 69 virtual ~ScriptElementData(); 70 71 bool ignoresLoadRequest() const; 72 bool shouldExecuteAsJavaScript() const; 73 74 String scriptContent() const; 75 String scriptCharset() const; 76 77 Element* element() const { return m_element; } 78 bool createdByParser() const { return m_createdByParser; } 79 void setCreatedByParser(bool value) { m_createdByParser = value; } 80 bool haveFiredLoadEvent() const { return m_firedLoad; } 81 void setHaveFiredLoadEvent(bool firedLoad) { m_firedLoad = firedLoad; } 82 83 void requestScript(const String& sourceUrl); 84 void evaluateScript(const ScriptSourceCode&); 85 void stopLoadRequest(); 86 87 void execute(CachedScript*); 88 89 private: 90 virtual void notifyFinished(CachedResource*); 91 92 private: 93 ScriptElement* m_scriptElement; 94 Element* m_element; 95 CachedResourceHandle<CachedScript> m_cachedScript; 96 bool m_createdByParser; 97 bool m_requested; 98 bool m_evaluated; 99 bool m_firedLoad; 100 }; 101 102 ScriptElement* toScriptElement(Element*); 103 104 } 105 106 #endif 107
