/*
 * 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"

namespace blink {

class CSSStyleDeclaration;
class StyleRuleViewport;
class StyleRuleCSSStyleDeclaration;

class CSSViewportRule final : public CSSRule {
  DEFINE_WRAPPERTYPEINFO();

 public:
  static CSSViewportRule* Create(StyleRuleViewport* viewport_rule,
                                 CSSStyleSheet* sheet) {
    return MakeGarbageCollected<CSSViewportRule>(viewport_rule, sheet);
  }

  CSSViewportRule(StyleRuleViewport*, CSSStyleSheet*);
  ~CSSViewportRule() override;

  String cssText() const override;
  void Reattach(StyleRuleBase*) override;

  CSSStyleDeclaration* style() const;

  void Trace(blink::Visitor*) override;

 private:
  CSSRule::Type type() const override { return kViewportRule; }

  Member<StyleRuleViewport> viewport_rule_;
  mutable Member<StyleRuleCSSStyleDeclaration> properties_cssom_wrapper_;
};

DEFINE_CSS_RULE_TYPE_CASTS(CSSViewportRule, kViewportRule);

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_VIEWPORT_RULE_H_