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#include "config.h"
27#include "CSSKeyframeRule.h"
28
29#include "CSSKeyframesRule.h"
30#include "CSSParser.h"
31#include "PropertySetCSSStyleDeclaration.h"
32#include "StyleProperties.h"
33#include <wtf/text/StringBuilder.h>
34
35namespace WebCore {
36
37StyleRuleKeyframe::StyleRuleKeyframe(Ref<StyleProperties>&& properties)
38 : StyleRuleBase(Keyframe)
39 , m_properties(WTFMove(properties))
40{
41}
42
43StyleRuleKeyframe::StyleRuleKeyframe(std::unique_ptr<Vector<double>> keys, Ref<StyleProperties>&& properties)
44 : StyleRuleBase(Keyframe)
45 , m_properties(WTFMove(properties))
46 , m_keys(*keys)
47{
48}
49
50StyleRuleKeyframe::~StyleRuleKeyframe() = default;
51
52MutableStyleProperties& StyleRuleKeyframe::mutableProperties()
53{
54 if (!is<MutableStyleProperties>(m_properties.get()))
55 m_properties = m_properties->mutableCopy();
56 return downcast<MutableStyleProperties>(m_properties.get());
57}
58
59String StyleRuleKeyframe::keyText() const
60{
61 StringBuilder keyText;
62
63 for (size_t i = 0; i < m_keys.size(); ++i) {
64 if (i)
65 keyText.append(',');
66 keyText.appendFixedPrecisionNumber(m_keys.at(i) * 100);
67 keyText.append('%');
68 }
69
70 return keyText.toString();
71}
72
73bool StyleRuleKeyframe::setKeyText(const String& keyText)
74{
75 ASSERT(!keyText.isNull());
76 auto keys = CSSParser::parseKeyframeKeyList(keyText);
77 if (!keys || keys->isEmpty())
78 return false;
79 m_keys = *keys;
80 return true;
81}
82
83String StyleRuleKeyframe::cssText() const
84{
85 StringBuilder result;
86 result.append(keyText());
87 result.appendLiteral(" { ");
88 String decls = m_properties->asText();
89 result.append(decls);
90 if (!decls.isEmpty())
91 result.append(' ');
92 result.append('}');
93 return result.toString();
94}
95
96CSSKeyframeRule::CSSKeyframeRule(StyleRuleKeyframe& keyframe, CSSKeyframesRule* parent)
97 : CSSRule(0)
98 , m_keyframe(keyframe)
99{
100 setParentRule(parent);
101}
102
103CSSKeyframeRule::~CSSKeyframeRule()
104{
105 if (m_propertiesCSSOMWrapper)
106 m_propertiesCSSOMWrapper->clearParentRule();
107}
108
109CSSStyleDeclaration& CSSKeyframeRule::style()
110{
111 if (!m_propertiesCSSOMWrapper)
112 m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_keyframe->mutableProperties(), *this);
113 return *m_propertiesCSSOMWrapper;
114}
115
116void CSSKeyframeRule::reattach(StyleRuleBase&)
117{
118 // No need to reattach, the underlying data is shareable on mutation.
119 ASSERT_NOT_REACHED();
120}
121
122} // namespace WebCore
123