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/*
* 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 ScriptElement_h
#define ScriptElement_h
#include "CachedResourceClient.h"
#include "CachedResourceHandle.h"
namespace WebCore {
class CachedScript;
class Element;
class ScriptElement;
class ScriptSourceCode;
class ScriptElement : private CachedResourceClient {
public:
ScriptElement(Element*, bool createdByParser, bool isEvaluated);
virtual ~ScriptElement();
Element* element() const { return m_element; }
// A charset for loading the script (may be overridden by HTTP headers or a BOM).
String scriptCharset() const;
String scriptContent() const;
bool shouldExecuteAsJavaScript() const;
void executeScript(const ScriptSourceCode&);
void execute(CachedScript*);
// XML parser calls these
virtual String sourceAttributeValue() const = 0;
virtual void dispatchLoadEvent() = 0;
virtual void dispatchErrorEvent() = 0;
protected:
bool haveFiredLoadEvent() const { return m_firedLoad; }
void setHaveFiredLoadEvent(bool firedLoad) { m_firedLoad = firedLoad; }
bool createdByParser() const { return m_createdByParser; }
bool isEvaluated() const { return m_isEvaluated; }
// Helper functions used by our parent classes.
void insertedIntoDocument(const String& sourceUrl);
void removedFromDocument();
void childrenChanged();
void finishParsingChildren(const String& sourceUrl);
void handleSourceAttribute(const String& sourceUrl);
private:
bool ignoresLoadRequest() const;
bool isAsynchronous() const;
bool isDeferred() const;
void requestScript(const String& sourceUrl);
void evaluateScript(const ScriptSourceCode&);
void stopLoadRequest();
virtual void notifyFinished(CachedResource*);
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;
Element* m_element;
CachedResourceHandle<CachedScript> m_cachedScript;
bool m_createdByParser; // HTML5: "parser-inserted"
bool m_requested;
bool m_isEvaluated; // HTML5: "already started"
bool m_firedLoad;
};
ScriptElement* toScriptElement(Element*);
}
#endif
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