De-Element ScriptLoader

third_party/WebKit/Source/core/dom/ScriptLoaderClient.h

 /*
  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * 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 ScriptLoaderClient_h
 #define ScriptLoaderClient_h
 
 #include "core/CoreExport.h"
+#include "platform/heap/Handle.h"
+#include "platform/heap/Heap.h"
 #include "wtf/text/AtomicString.h"
+#include "wtf/text/TextPosition.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
+class Document;
+class Element;
+class HTMLScriptElementOrSVGScriptElement;
+class ScriptLoader;
 
-class CORE_EXPORT ScriptLoaderClient {
+class CORE_EXPORT ScriptLoaderClient : public GarbageCollectedMixin {
  public:
   virtual ~ScriptLoaderClient() {}
 
-  virtual void dispatchLoadEvent() = 0;
+  static ScriptLoaderClient* fromElementIfPossible(Element*);
 
-  virtual String sourceAttributeValue() const = 0;
-  virtual String charsetAttributeValue() const = 0;
-  virtual String typeAttributeValue() const = 0;
-  virtual String languageAttributeValue() const = 0;
-  virtual String forAttributeValue() const = 0;
-  virtual String eventAttributeValue() const = 0;
-  virtual bool asyncAttributeValue() const = 0;
-  virtual bool deferAttributeValue() const = 0;
-  virtual bool hasSourceAttribute() const = 0;
+  virtual void dispatchLoadEvent() {}
+  virtual void dispatchErrorEvent() {}
+
+  virtual bool asyncAttributeValue() const { return false; }
+  virtual String charsetAttributeValue() const { return String(); }
+  virtual String crossOriginAttributeValue() const { return String(); }
+  virtual bool deferAttributeValue() const { return false; }
+  virtual String eventAttributeValue() const { return String(); }
+  virtual String forAttributeValue() const { return String(); }
+  virtual String integrityAttributeValue() const { return String(); }
+  virtual String languageAttributeValue() const { return String(); }
+  virtual String sourceAttributeValue() const { return String(); }
+  virtual String typeAttributeValue() const { return String(); }
+
+  virtual String textFromChildren() { return String(); }
+  virtual String textContent() const { return String(); }
+  virtual bool hasSourceAttribute() const { return false; }
+  virtual bool isConnected() const { return false; }
+  virtual bool hasChildren() const { return false; }
+  virtual bool isNonceableElement() const { return false; }
+  virtual AtomicString initiatorName() const { return AtomicString(); }
+
+  virtual bool allowInlineScriptForCSP(const AtomicString& nonce,
+                                       const WTF::OrdinalNumber&,
+                                       const String& scriptContent) = 0;
+  virtual Document& document() const = 0;
+  virtual void setScriptElementForBinding(
+      HTMLScriptElementOrSVGScriptElement&) {}
+
+  ScriptLoader* loader() const { return m_loader.get(); }
 
   AtomicString nonce() const { return m_nonce; }
   void setNonce(const String& nonce) { m_nonce = AtomicString(nonce); }
 
+  DECLARE_VIRTUAL_TRACE();
+
+ protected:
+  void initializeScriptLoader(bool parserInserted,
+                              bool alreadyStarted,
+                              bool createdDuringDocumentWrite);
+
+  Member<ScriptLoader> m_loader;
+
  private:
   AtomicString m_nonce;
 };
 
 }  // namespace blink
 
 #endif