1/*
2 * Copyright (C) 2007, 2008, 2012, 2014 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include "CSSRule.h"
29#include "StyleRule.h"
30#include <memory>
31#include <wtf/Forward.h>
32#include <wtf/text/AtomicString.h>
33
34namespace WebCore {
35
36class CSSRuleList;
37class StyleRuleKeyframe;
38class CSSKeyframeRule;
39
40class StyleRuleKeyframes final : public StyleRuleBase {
41public:
42 static Ref<StyleRuleKeyframes> create(const AtomicString& name) { return adoptRef(*new StyleRuleKeyframes(name)); }
43 static Ref<StyleRuleKeyframes> create(const AtomicString& name, std::unique_ptr<DeferredStyleGroupRuleList>&& deferredRules) { return adoptRef(*new StyleRuleKeyframes(name, WTFMove(deferredRules))); }
44
45 ~StyleRuleKeyframes();
46
47 const Vector<Ref<StyleRuleKeyframe>>& keyframes() const;
48 const Vector<Ref<StyleRuleKeyframe>>* keyframesWithoutDeferredParsing() const
49 {
50 return !m_deferredRules ? &m_keyframes : nullptr;
51 }
52
53 void parserAppendKeyframe(RefPtr<StyleRuleKeyframe>&&);
54 void wrapperAppendKeyframe(Ref<StyleRuleKeyframe>&&);
55 void wrapperRemoveKeyframe(unsigned);
56
57 const AtomicString& name() const { return m_name; }
58 void setName(const AtomicString& name) { m_name = name; }
59
60 size_t findKeyframeIndex(const String& key) const;
61
62 Ref<StyleRuleKeyframes> copy() const { return adoptRef(*new StyleRuleKeyframes(*this)); }
63
64private:
65 StyleRuleKeyframes(const AtomicString&);
66 StyleRuleKeyframes(const AtomicString&, std::unique_ptr<DeferredStyleGroupRuleList>&&);
67 StyleRuleKeyframes(const StyleRuleKeyframes&);
68
69 void parseDeferredRulesIfNeeded() const;
70
71 mutable Vector<Ref<StyleRuleKeyframe>> m_keyframes;
72 AtomicString m_name;
73
74 mutable std::unique_ptr<DeferredStyleGroupRuleList> m_deferredRules;
75};
76
77class CSSKeyframesRule final : public CSSRule {
78public:
79 static Ref<CSSKeyframesRule> create(StyleRuleKeyframes& rule, CSSStyleSheet* sheet) { return adoptRef(*new CSSKeyframesRule(rule, sheet)); }
80
81 virtual ~CSSKeyframesRule();
82
83 CSSRule::Type type() const final { return KEYFRAMES_RULE; }
84 String cssText() const final;
85 void reattach(StyleRuleBase&) final;
86
87 String name() const { return m_keyframesRule->name(); }
88 void setName(const String&);
89
90 CSSRuleList& cssRules();
91
92 void insertRule(const String& rule);
93 void appendRule(const String& rule);
94 void deleteRule(const String& key);
95 CSSKeyframeRule* findRule(const String& key);
96
97 // For IndexedGetter and CSSRuleList.
98 unsigned length() const;
99 CSSKeyframeRule* item(unsigned index) const;
100
101private:
102 CSSKeyframesRule(StyleRuleKeyframes&, CSSStyleSheet* parent);
103
104 Ref<StyleRuleKeyframes> m_keyframesRule;
105 mutable Vector<RefPtr<CSSKeyframeRule>> m_childRuleCSSOMWrappers;
106 mutable std::unique_ptr<CSSRuleList> m_ruleListCSSOMWrapper;
107};
108
109} // namespace WebCore
110
111SPECIALIZE_TYPE_TRAITS_CSS_RULE(CSSKeyframesRule, CSSRule::KEYFRAMES_RULE)
112
113SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::StyleRuleKeyframes)
114 static bool isType(const WebCore::StyleRuleBase& rule) { return rule.isKeyframesRule(); }
115SPECIALIZE_TYPE_TRAITS_END()
116