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/*
* Copyright (C) 2012 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER “AS IS” AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef ViewportStyleResolver_h
#define ViewportStyleResolver_h
#include "CSSPropertyNames.h"
#include "core/css/RuleSet.h"
#include "platform/Length.h"
#include "wtf/RefCounted.h"
#include "wtf/RefPtr.h"
namespace WebCore {
class Document;
class MutableStylePropertySet;
class StyleRuleViewport;
class ViewportStyleResolver : public RefCounted<ViewportStyleResolver> {
public:
static PassRefPtr<ViewportStyleResolver> create(Document* document)
{
return adoptRef(new ViewportStyleResolver(document));
}
~ViewportStyleResolver();
enum Origin { UserAgentOrigin, AuthorOrigin };
void collectViewportRules(RuleSet*, Origin);
void clearDocument();
void resolve();
private:
explicit ViewportStyleResolver(Document*);
void addViewportRule(StyleRuleViewport*, Origin);
float viewportArgumentValue(CSSPropertyID) const;
Length viewportLengthValue(CSSPropertyID) const;
Document* m_document;
RefPtr<MutableStylePropertySet> m_propertySet;
bool m_hasAuthorStyle;
};
} // namespace WebCore
#endif // ViewportStyleResolver_h
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