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/*
* Copyright (C) 2006, 2007 Rob Buis
*
* 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 StyleElement_h
#define StyleElement_h
#include "core/css/CSSStyleSheet.h"
#include "core/css/StyleEngineContext.h"
#include "platform/wtf/text/TextPosition.h"
namespace blink {
class ContainerNode;
class Document;
class Element;
class CORE_EXPORT StyleElement : public GarbageCollectedMixin {
public:
StyleElement(Document*, bool created_by_parser);
virtual ~StyleElement();
virtual void Trace(blink::Visitor*);
protected:
enum ProcessingResult { kProcessingSuccessful, kProcessingFatalError };
virtual const AtomicString& type() const = 0;
virtual const AtomicString& media() const = 0;
CSSStyleSheet* sheet() const { return sheet_.Get(); }
bool IsLoading() const;
bool SheetLoaded(Document&);
void StartLoadingDynamicSheet(Document&);
void RemovedFrom(Element&, ContainerNode* insertion_point);
ProcessingResult ProcessStyleSheet(Document&, Element&);
ProcessingResult ChildrenChanged(Element&);
ProcessingResult FinishParsingChildren(Element&);
Member<CSSStyleSheet> sheet_;
private:
ProcessingResult CreateSheet(Element&, const String& text = String());
ProcessingResult Process(Element&);
void ClearSheet(Element& owner_element);
bool created_by_parser_ : 1;
bool loading_ : 1;
bool registered_as_candidate_ : 1;
TextPosition start_position_;
StyleEngineContext style_engine_context_;
};
} // namespace blink
#endif