1/* 2 * Copyright (C) 2007, 2008 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 "config.h" 27#include "WebKitCSSKeyframesRule.h" 28 29#include "CSSMutableStyleDeclaration.h" 30#include "CSSParser.h" 31#include "CSSRuleList.h" 32#include "StyleSheet.h" 33#include "WebKitCSSKeyframeRule.h" 34 35namespace WebCore { 36 37WebKitCSSKeyframesRule::WebKitCSSKeyframesRule(CSSStyleSheet* parent) 38 : CSSRule(parent) 39 , m_lstCSSRules(CSSRuleList::create()) 40{ 41} 42 43WebKitCSSKeyframesRule::~WebKitCSSKeyframesRule() 44{ 45 int length = m_lstCSSRules->length(); 46 if (length == 0) 47 return; 48 49 for (int i = 0; i < length; i++) { 50 if (m_lstCSSRules->item(i)->isKeyframeRule()) { 51 if (CSSMutableStyleDeclaration* style = static_cast<WebKitCSSKeyframeRule*>(m_lstCSSRules->item(i))->style()) 52 style->setParent(0); 53 } 54 m_lstCSSRules->item(i)->setParent(0); 55 } 56} 57 58String WebKitCSSKeyframesRule::name() const 59{ 60 return m_name; 61} 62 63void WebKitCSSKeyframesRule::setName(const String& name) 64{ 65 m_name = name; 66 67 // Since the name is used in the keyframe map list in CSSStyleSelector, we need 68 // to recompute the style sheet to get the updated name. 69 stylesheet()->styleSheetChanged(); 70} 71 72unsigned WebKitCSSKeyframesRule::length() const 73{ 74 return m_lstCSSRules.get()->length(); 75} 76 77WebKitCSSKeyframeRule* WebKitCSSKeyframesRule::item(unsigned index) 78{ 79 CSSRule* rule = m_lstCSSRules.get()->item(index); 80 return (rule && rule->isKeyframeRule()) ? static_cast<WebKitCSSKeyframeRule*>(rule) : 0; 81} 82 83const WebKitCSSKeyframeRule* WebKitCSSKeyframesRule::item(unsigned index) const 84{ 85 CSSRule* rule = m_lstCSSRules.get()->item(index); 86 return (rule && rule->isKeyframeRule()) ? static_cast<const WebKitCSSKeyframeRule*>(rule) : 0; 87} 88 89void WebKitCSSKeyframesRule::append(WebKitCSSKeyframeRule* rule) 90{ 91 if (!rule) 92 return; 93 94 m_lstCSSRules->append(rule); 95 rule->setParent(this); 96 97 if (CSSMutableStyleDeclaration* style = rule->style()) 98 style->setParent(this); 99} 100 101void WebKitCSSKeyframesRule::insertRule(const String& rule) 102{ 103 CSSParser p(useStrictParsing()); 104 RefPtr<CSSRule> newRule = p.parseKeyframeRule(parentStyleSheet(), rule); 105 if (newRule.get() && newRule.get()->isKeyframeRule()) 106 append(static_cast<WebKitCSSKeyframeRule*>(newRule.get())); 107} 108 109void WebKitCSSKeyframesRule::deleteRule(const String& s) 110{ 111 int i = findRuleIndex(s); 112 if (i >= 0) 113 m_lstCSSRules.get()->deleteRule(i); 114} 115 116WebKitCSSKeyframeRule* WebKitCSSKeyframesRule::findRule(const String& s) 117{ 118 int i = findRuleIndex(s); 119 return (i >= 0) ? item(i) : 0; 120} 121 122int WebKitCSSKeyframesRule::findRuleIndex(const String& key) const 123{ 124 String percentageString; 125 if (equalIgnoringCase(key, "from")) 126 percentageString = "0%"; 127 else if (equalIgnoringCase(key, "to")) 128 percentageString = "100%"; 129 else 130 percentageString = key; 131 132 for (unsigned i = 0; i < length(); ++i) { 133 if (item(i)->keyText() == percentageString) 134 return i; 135 } 136 137 return -1; 138} 139 140String WebKitCSSKeyframesRule::cssText() const 141{ 142 String result = "@-webkit-keyframes "; 143 result += m_name; 144 result += " { \n"; 145 146 if (m_lstCSSRules) { 147 unsigned len = m_lstCSSRules->length(); 148 for (unsigned i = 0; i < len; i++) { 149 result += " "; 150 result += m_lstCSSRules->item(i)->cssText(); 151 result += "\n"; 152 } 153 } 154 155 result += "}"; 156 return result; 157} 158 159} // namespace WebCore 160