| /* |
| * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| |
| #ifndef ScriptLoader_h |
| #define ScriptLoader_h |
| |
| #include "core/CoreExport.h" |
| #include "core/dom/PendingScript.h" |
| #include "core/fetch/FetchRequest.h" |
| #include "core/fetch/ResourceClient.h" |
| #include "core/fetch/ResourcePtr.h" |
| #include "core/fetch/ScriptResource.h" |
| #include "wtf/text/TextPosition.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace blink { |
| |
| class Element; |
| class ScriptLoaderClient; |
| class ScriptSourceCode; |
| |
| |
| class CORE_EXPORT ScriptLoader : public NoBaseWillBeGarbageCollectedFinalized<ScriptLoader>, private ScriptResourceClient { |
| public: |
| static PassOwnPtrWillBeRawPtr<ScriptLoader> create(Element* element, bool createdByParser, bool isEvaluated) |
| { |
| return adoptPtrWillBeNoop(new ScriptLoader(element, createdByParser, isEvaluated)); |
| } |
| |
| ~ScriptLoader() override; |
| DECLARE_VIRTUAL_TRACE(); |
| |
| Element* element() const { return m_element; } |
| |
| enum LegacyTypeSupport { DisallowLegacyTypeInTypeAttribute, AllowLegacyTypeInTypeAttribute }; |
| bool prepareScript(const TextPosition& scriptStartPosition = TextPosition::minimumPosition(), LegacyTypeSupport = DisallowLegacyTypeInTypeAttribute); |
| |
| String scriptCharset() const { return m_characterEncoding; } |
| String scriptContent() const; |
| // Returns false if and only if execution was blocked. |
| bool executeScript(const ScriptSourceCode&, double* compilationFinishTime = 0); |
| virtual void execute(); |
| |
| // XML parser calls these |
| void dispatchLoadEvent(); |
| void dispatchErrorEvent(); |
| |
| bool isScriptTypeSupported(LegacyTypeSupport) const; |
| |
| bool haveFiredLoadEvent() const { return m_haveFiredLoad; } |
| bool willBeParserExecuted() const { return m_willBeParserExecuted; } |
| bool readyToBeParserExecuted() const { return m_readyToBeParserExecuted; } |
| bool willExecuteWhenDocumentFinishedParsing() const { return m_willExecuteWhenDocumentFinishedParsing; } |
| ResourcePtr<ScriptResource> resource() { return m_resource; } |
| |
| void setHaveFiredLoadEvent(bool haveFiredLoad) { m_haveFiredLoad = haveFiredLoad; } |
| bool isParserInserted() const { return m_parserInserted; } |
| bool alreadyStarted() const { return m_alreadyStarted; } |
| bool forceAsync() const { return m_forceAsync; } |
| |
| // Helper functions used by our parent classes. |
| void didNotifySubtreeInsertionsToDocument(); |
| void childrenChanged(); |
| void handleSourceAttribute(const String& sourceUrl); |
| void handleAsyncAttribute(); |
| |
| WTF::OrdinalNumber startLineNumber() { return m_startLineNumber; } |
| virtual bool isReady() const { return m_pendingScript.isReady(); } |
| |
| // Clears the connection to the PendingScript (and Element and Resource). |
| void detach(); |
| |
| protected: |
| ScriptLoader(Element*, bool createdByParser, bool isEvaluated); |
| |
| private: |
| bool ignoresLoadRequest() const; |
| bool isScriptForEventSupported() const; |
| |
| bool fetchScript(const String& sourceUrl, FetchRequest::DeferOption); |
| |
| ScriptLoaderClient* client() const; |
| |
| // ResourceClient |
| void notifyFinished(Resource*) override; |
| |
| RawPtrWillBeMember<Element> m_element; |
| ResourcePtr<ScriptResource> m_resource; |
| WTF::OrdinalNumber m_startLineNumber; |
| String m_characterEncoding; |
| String m_fallbackCharacterEncoding; |
| |
| PendingScript m_pendingScript; |
| |
| bool m_parserInserted : 1; |
| bool m_isExternalScript : 1; |
| bool m_alreadyStarted : 1; |
| bool m_haveFiredLoad : 1; |
| bool m_willBeParserExecuted : 1; // Same as "The parser will handle executing the script." |
| bool m_readyToBeParserExecuted : 1; |
| bool m_willExecuteWhenDocumentFinishedParsing : 1; |
| bool m_forceAsync : 1; |
| bool m_willExecuteInOrder : 1; |
| |
| // FIXMEDART: Type of script (JS, Dart, None). |
| enum ScriptType { ScriptNone = 0, ScriptJavaScript, ScriptDart }; |
| ScriptType getScriptTypeSupported(LegacyTypeSupport) const; |
| ScriptType m_scriptType; |
| }; |
| |
| ScriptLoader* toScriptLoaderIfPossible(Element*); |
| |
| } // namespace blink |
| |
| #endif // ScriptLoader_h |