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27 #include "core/css/CSSKeyframeRule.h"
29 #include "core/css/CSSKeyframesRule.h"
30 #include "core/css/parser/BisonCSSParser.h"
31 #include "core/css/PropertySetCSSStyleDeclaration.h"
32 #include "core/css/StylePropertySet.h"
33 #include "core/frame/UseCounter.h"
34 #include "wtf/text/StringBuilder.h"
38 StyleKeyframe::StyleKeyframe()
42 StyleKeyframe::~StyleKeyframe()
46 String StyleKeyframe::keyText() const
48 if (m_keyText.isNull()) {
49 // Keys are always set when these objects are created.
50 ASSERT(m_keys && !m_keys->isEmpty());
51 StringBuilder keyText;
52 for (unsigned i = 0; i < m_keys->size(); ++i) {
55 keyText.append(String::number(m_keys->at(i) * 100));
58 m_keyText = keyText.toString();
60 ASSERT(!m_keyText.isNull());
64 void StyleKeyframe::setKeyText(const String& keyText)
66 // FIXME: Should we trim whitespace?
67 // FIXME: Should we leave keyText unchanged when attempting to set to an
69 ASSERT(!keyText.isNull());
74 const Vector<double>& StyleKeyframe::keys() const
77 // Keys can only be cleared by setting the key text from JavaScript
78 // and this can never be null.
79 ASSERT(!m_keyText.isNull());
80 m_keys = BisonCSSParser(strictCSSParserContext()).parseKeyframeKeyList(m_keyText);
82 // If an invalid key string was set, m_keys may be empty.
87 void StyleKeyframe::setKeys(PassOwnPtr<Vector<double> > keys)
89 ASSERT(keys && !keys->isEmpty());
92 ASSERT(m_keyText.isNull());
95 MutableStylePropertySet& StyleKeyframe::mutableProperties()
97 if (!m_properties->isMutable())
98 m_properties = m_properties->mutableCopy();
99 return *toMutableStylePropertySet(m_properties.get());
102 void StyleKeyframe::setProperties(PassRefPtrWillBeRawPtr<StylePropertySet> properties)
105 m_properties = properties;
108 String StyleKeyframe::cssText() const
110 StringBuilder result;
111 result.append(keyText());
112 result.appendLiteral(" { ");
113 String decls = m_properties->asText();
114 result.append(decls);
115 if (!decls.isEmpty())
118 return result.toString();
121 PassOwnPtr<Vector<double> > StyleKeyframe::createKeyList(CSSParserValueList* keys)
123 OwnPtr<Vector<double> > keyVector = adoptPtr(new Vector<double>(keys->size()));
124 for (unsigned i = 0; i < keys->size(); ++i) {
125 ASSERT(keys->valueAt(i)->unit == blink::CSSPrimitiveValue::CSS_NUMBER);
126 double key = keys->valueAt(i)->fValue;
127 if (key < 0 || key > 100) {
128 // As per http://www.w3.org/TR/css3-animations/#keyframes,
129 // "If a keyframe selector specifies negative percentage values
130 // or values higher than 100%, then the keyframe will be ignored."
134 keyVector->at(i) = key / 100;
136 return keyVector.release();
139 void StyleKeyframe::trace(Visitor* visitor)
141 visitor->trace(m_properties);
144 CSSKeyframeRule::CSSKeyframeRule(StyleKeyframe* keyframe, CSSKeyframesRule* parent)
146 , m_keyframe(keyframe)
148 setParentRule(parent);
151 CSSKeyframeRule::~CSSKeyframeRule()
154 if (m_propertiesCSSOMWrapper)
155 m_propertiesCSSOMWrapper->clearParentRule();
159 CSSStyleDeclaration* CSSKeyframeRule::style() const
161 if (!m_propertiesCSSOMWrapper)
162 m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_keyframe->mutableProperties(), const_cast<CSSKeyframeRule*>(this));
163 return m_propertiesCSSOMWrapper.get();
166 void CSSKeyframeRule::reattach(StyleRuleBase*)
168 // No need to reattach, the underlying data is shareable on mutation.
169 ASSERT_NOT_REACHED();
172 void CSSKeyframeRule::trace(Visitor* visitor)
174 visitor->trace(m_keyframe);
175 visitor->trace(m_propertiesCSSOMWrapper);
176 CSSRule::trace(visitor);