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| 1 /* | |
| 2 * Copyright (C) 2007, 2008, 2012 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 COMPUTER, 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 COMPUTER, 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 "sky/engine/config.h" | |
| 27 #include "sky/engine/core/css/CSSKeyframesRule.h" | |
| 28 | |
| 29 #include "sky/engine/core/css/CSSKeyframeRule.h" | |
| 30 #include "sky/engine/core/css/CSSRuleList.h" | |
| 31 #include "sky/engine/core/css/CSSStyleSheet.h" | |
| 32 #include "sky/engine/core/css/parser/BisonCSSParser.h" | |
| 33 #include "sky/engine/core/frame/UseCounter.h" | |
| 34 #include "sky/engine/wtf/text/StringBuilder.h" | |
| 35 | |
| 36 namespace blink { | |
| 37 | |
| 38 StyleRuleKeyframes::StyleRuleKeyframes() | |
| 39 : StyleRuleBase(Keyframes) | |
| 40 { | |
| 41 } | |
| 42 | |
| 43 StyleRuleKeyframes::StyleRuleKeyframes(const StyleRuleKeyframes& o) | |
| 44 : StyleRuleBase(o) | |
| 45 , m_keyframes(o.m_keyframes) | |
| 46 , m_name(o.m_name) | |
| 47 , m_isPrefixed(o.m_isPrefixed) | |
| 48 { | |
| 49 } | |
| 50 | |
| 51 StyleRuleKeyframes::~StyleRuleKeyframes() | |
| 52 { | |
| 53 } | |
| 54 | |
| 55 void StyleRuleKeyframes::parserAppendKeyframe(PassRefPtr<StyleKeyframe> keyframe
) | |
| 56 { | |
| 57 if (!keyframe) | |
| 58 return; | |
| 59 m_keyframes.append(keyframe); | |
| 60 } | |
| 61 | |
| 62 void StyleRuleKeyframes::wrapperAppendKeyframe(PassRefPtr<StyleKeyframe> keyfram
e) | |
| 63 { | |
| 64 m_keyframes.append(keyframe); | |
| 65 } | |
| 66 | |
| 67 void StyleRuleKeyframes::wrapperRemoveKeyframe(unsigned index) | |
| 68 { | |
| 69 m_keyframes.remove(index); | |
| 70 } | |
| 71 | |
| 72 int StyleRuleKeyframes::findKeyframeIndex(const String& key) const | |
| 73 { | |
| 74 String percentageString; | |
| 75 if (equalIgnoringCase(key, "from")) | |
| 76 percentageString = "0%"; | |
| 77 else if (equalIgnoringCase(key, "to")) | |
| 78 percentageString = "100%"; | |
| 79 else | |
| 80 percentageString = key; | |
| 81 | |
| 82 for (unsigned i = 0; i < m_keyframes.size(); ++i) { | |
| 83 if (m_keyframes[i]->keyText() == percentageString) | |
| 84 return i; | |
| 85 } | |
| 86 return -1; | |
| 87 } | |
| 88 | |
| 89 CSSKeyframesRule::CSSKeyframesRule(StyleRuleKeyframes* keyframesRule, CSSStyleSh
eet* parent) | |
| 90 : CSSRule(parent) | |
| 91 , m_keyframesRule(keyframesRule) | |
| 92 , m_childRuleCSSOMWrappers(keyframesRule->keyframes().size()) | |
| 93 , m_isPrefixed(keyframesRule->isVendorPrefixed()) | |
| 94 { | |
| 95 } | |
| 96 | |
| 97 CSSKeyframesRule::~CSSKeyframesRule() | |
| 98 { | |
| 99 #if !ENABLE(OILPAN) | |
| 100 ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size(
)); | |
| 101 for (unsigned i = 0; i < m_childRuleCSSOMWrappers.size(); ++i) { | |
| 102 if (m_childRuleCSSOMWrappers[i]) | |
| 103 m_childRuleCSSOMWrappers[i]->setParentRule(0); | |
| 104 } | |
| 105 #endif | |
| 106 } | |
| 107 | |
| 108 void CSSKeyframesRule::setName(const String& name) | |
| 109 { | |
| 110 CSSStyleSheet::RuleMutationScope mutationScope(this); | |
| 111 | |
| 112 m_keyframesRule->setName(name); | |
| 113 } | |
| 114 | |
| 115 void CSSKeyframesRule::insertRule(const String& ruleText) | |
| 116 { | |
| 117 ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size(
)); | |
| 118 | |
| 119 CSSStyleSheet* styleSheet = parentStyleSheet(); | |
| 120 CSSParserContext context(parserContext(), UseCounter::getFrom(styleSheet)); | |
| 121 BisonCSSParser parser(context); | |
| 122 RefPtr<StyleKeyframe> keyframe = parser.parseKeyframeRule(styleSheet ? style
Sheet->contents() : 0, ruleText); | |
| 123 if (!keyframe) | |
| 124 return; | |
| 125 | |
| 126 CSSStyleSheet::RuleMutationScope mutationScope(this); | |
| 127 | |
| 128 m_keyframesRule->wrapperAppendKeyframe(keyframe); | |
| 129 | |
| 130 m_childRuleCSSOMWrappers.grow(length()); | |
| 131 } | |
| 132 | |
| 133 void CSSKeyframesRule::deleteRule(const String& s) | |
| 134 { | |
| 135 ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size(
)); | |
| 136 | |
| 137 int i = m_keyframesRule->findKeyframeIndex(s); | |
| 138 if (i < 0) | |
| 139 return; | |
| 140 | |
| 141 CSSStyleSheet::RuleMutationScope mutationScope(this); | |
| 142 | |
| 143 m_keyframesRule->wrapperRemoveKeyframe(i); | |
| 144 | |
| 145 if (m_childRuleCSSOMWrappers[i]) | |
| 146 m_childRuleCSSOMWrappers[i]->setParentRule(0); | |
| 147 m_childRuleCSSOMWrappers.remove(i); | |
| 148 } | |
| 149 | |
| 150 CSSKeyframeRule* CSSKeyframesRule::findRule(const String& s) | |
| 151 { | |
| 152 int i = m_keyframesRule->findKeyframeIndex(s); | |
| 153 return (i >= 0) ? item(i) : 0; | |
| 154 } | |
| 155 | |
| 156 String CSSKeyframesRule::cssText() const | |
| 157 { | |
| 158 StringBuilder result; | |
| 159 if (isVendorPrefixed()) | |
| 160 result.appendLiteral("@-webkit-keyframes "); | |
| 161 else | |
| 162 result.appendLiteral("@keyframes "); | |
| 163 result.append(name()); | |
| 164 result.appendLiteral(" { \n"); | |
| 165 | |
| 166 unsigned size = length(); | |
| 167 for (unsigned i = 0; i < size; ++i) { | |
| 168 result.appendLiteral(" "); | |
| 169 result.append(m_keyframesRule->keyframes()[i]->cssText()); | |
| 170 result.append('\n'); | |
| 171 } | |
| 172 result.append('}'); | |
| 173 return result.toString(); | |
| 174 } | |
| 175 | |
| 176 unsigned CSSKeyframesRule::length() const | |
| 177 { | |
| 178 return m_keyframesRule->keyframes().size(); | |
| 179 } | |
| 180 | |
| 181 CSSKeyframeRule* CSSKeyframesRule::item(unsigned index) const | |
| 182 { | |
| 183 if (index >= length()) | |
| 184 return 0; | |
| 185 | |
| 186 ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size(
)); | |
| 187 RefPtr<CSSKeyframeRule>& rule = m_childRuleCSSOMWrappers[index]; | |
| 188 if (!rule) | |
| 189 rule = adoptRef(new CSSKeyframeRule(m_keyframesRule->keyframes()[index].
get(), const_cast<CSSKeyframesRule*>(this))); | |
| 190 | |
| 191 return rule.get(); | |
| 192 } | |
| 193 | |
| 194 CSSRuleList* CSSKeyframesRule::cssRules() | |
| 195 { | |
| 196 if (!m_ruleListCSSOMWrapper) | |
| 197 m_ruleListCSSOMWrapper = LiveCSSRuleList<CSSKeyframesRule>::create(this)
; | |
| 198 return m_ruleListCSSOMWrapper.get(); | |
| 199 } | |
| 200 | |
| 201 void CSSKeyframesRule::reattach(StyleRuleBase* rule) | |
| 202 { | |
| 203 ASSERT(rule); | |
| 204 m_keyframesRule = toStyleRuleKeyframes(rule); | |
| 205 } | |
| 206 | |
| 207 } // namespace blink | |
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