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/*
* Copyright (C) 2012 Intel Corporation. All rights reserved.
* Copyright (C) 2012 Apple Inc. 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 THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_VIEWPORT_RULE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_VIEWPORT_RULE_H_
#include "third_party/blink/renderer/core/css/css_rule.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
class CSSStyleDeclaration;
class StyleRuleViewport;
class StyleRuleCSSStyleDeclaration;
class CSSViewportRule final : public CSSRule {
DEFINE_WRAPPERTYPEINFO();
public:
CSSViewportRule(StyleRuleViewport*, CSSStyleSheet*);
~CSSViewportRule() override;
String cssText() const override;
void Reattach(StyleRuleBase*) override;
CSSStyleDeclaration* style() const;
void Trace(Visitor*) override;
private:
CSSRule::Type type() const override { return kViewportRule; }
Member<StyleRuleViewport> viewport_rule_;
mutable Member<StyleRuleCSSStyleDeclaration> properties_cssom_wrapper_;
};
template <>
struct DowncastTraits<CSSViewportRule> {
static bool AllowFrom(const CSSRule& rule) {
return rule.type() == CSSRule::kViewportRule;
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_VIEWPORT_RULE_H_
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