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// Copyright 2015 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef COBALT_CSSOM_CSS_KEYFRAMES_RULE_H_
#define COBALT_CSSOM_CSS_KEYFRAMES_RULE_H_
#include <map>
#include <string>
#include <vector>
#include "base/compiler_specific.h"
#include "cobalt/cssom/css_declared_style_data.h"
#include "cobalt/cssom/css_rule.h"
#include "cobalt/cssom/css_rule_list.h"
#include "cobalt/script/wrappable.h"
namespace cobalt {
namespace cssom {
class CSSRuleVisitor;
class CSSStyleSheet;
// The CSSKeyframesRule interface represents a complete set of keyframes for a
// single animation.
// https://www.w3.org/TR/2013/WD-css3-animations-20130219/#CSSKeyframesRule-interface
class CSSKeyframesRule : public CSSRule {
public:
typedef std::map<std::string, scoped_refptr<CSSKeyframesRule> > NameMap;
CSSKeyframesRule(const std::string& name,
const scoped_refptr<CSSRuleList>& css_rules);
// Web API: CSSRule
Type type() const OVERRIDE { return kKeyframesRule; }
std::string css_text(script::ExceptionState* exception_state) const OVERRIDE;
void set_css_text(const std::string& css_text,
script::ExceptionState* exception_state) OVERRIDE;
// Web API: CSSKeyframesRule
//
const std::string& name() const;
const scoped_refptr<CSSRuleList>& css_rules() const;
// Custom, not in any spec.
//
// The KeyframeInfo struct represents the same data as is found in each
// CSSKeyframeRule object within the css_rules_ list, but the data stored here
// is simplified and there is only one entry per offset.
struct KeyframeInfo {
float offset;
scoped_refptr<const CSSDeclaredStyleData> style;
};
// A list of keyframes sorted by offset.
const std::vector<KeyframeInfo>& sorted_keyframes() const {
return sorted_keyframes_;
}
// From CSSRule.
void Accept(CSSRuleVisitor* visitor) OVERRIDE;
void AttachToCSSStyleSheet(CSSStyleSheet* style_sheet) OVERRIDE;
DEFINE_WRAPPABLE_TYPE(CSSKeyframesRule);
private:
~CSSKeyframesRule() OVERRIDE;
void UpdateSortedKeyframes();
// The unprocessed key text.
std::string name_;
// The list of CSSKeyframeRule objects that define the keyframes.
scoped_refptr<CSSRuleList> css_rules_;
// A list of keyframes sorted by offset.
std::vector<KeyframeInfo> sorted_keyframes_;
};
} // namespace cssom
} // namespace cobalt
#endif // COBALT_CSSOM_CSS_KEYFRAMES_RULE_H_