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82 lines
2.1 KiB
JavaScript
82 lines
2.1 KiB
JavaScript
//.CommonJS
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var CSSOM = {
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CSSStyleSheet: require("./CSSStyleSheet").CSSStyleSheet,
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CSSStyleRule: require("./CSSStyleRule").CSSStyleRule,
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CSSMediaRule: require("./CSSMediaRule").CSSMediaRule,
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CSSSupportsRule: require("./CSSSupportsRule").CSSSupportsRule,
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CSSStyleDeclaration: require("./CSSStyleDeclaration").CSSStyleDeclaration,
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CSSKeyframeRule: require('./CSSKeyframeRule').CSSKeyframeRule,
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CSSKeyframesRule: require('./CSSKeyframesRule').CSSKeyframesRule
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};
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///CommonJS
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/**
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* Produces a deep copy of stylesheet — the instance variables of stylesheet are copied recursively.
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* @param {CSSStyleSheet|CSSOM.CSSStyleSheet} stylesheet
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* @nosideeffects
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* @return {CSSOM.CSSStyleSheet}
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*/
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CSSOM.clone = function clone(stylesheet) {
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var cloned = new CSSOM.CSSStyleSheet();
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var rules = stylesheet.cssRules;
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if (!rules) {
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return cloned;
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}
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var RULE_TYPES = {
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1: CSSOM.CSSStyleRule,
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4: CSSOM.CSSMediaRule,
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//3: CSSOM.CSSImportRule,
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//5: CSSOM.CSSFontFaceRule,
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//6: CSSOM.CSSPageRule,
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8: CSSOM.CSSKeyframesRule,
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9: CSSOM.CSSKeyframeRule,
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12: CSSOM.CSSSupportsRule
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};
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for (var i=0, rulesLength=rules.length; i < rulesLength; i++) {
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var rule = rules[i];
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var ruleClone = cloned.cssRules[i] = new RULE_TYPES[rule.type]();
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var style = rule.style;
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if (style) {
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var styleClone = ruleClone.style = new CSSOM.CSSStyleDeclaration();
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for (var j=0, styleLength=style.length; j < styleLength; j++) {
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var name = styleClone[j] = style[j];
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styleClone[name] = style[name];
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styleClone._importants[name] = style.getPropertyPriority(name);
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}
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styleClone.length = style.length;
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}
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if (rule.hasOwnProperty('keyText')) {
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ruleClone.keyText = rule.keyText;
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}
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if (rule.hasOwnProperty('selectorText')) {
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ruleClone.selectorText = rule.selectorText;
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}
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if (rule.hasOwnProperty('mediaText')) {
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ruleClone.mediaText = rule.mediaText;
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}
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if (rule.hasOwnProperty('conditionText')) {
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ruleClone.conditionText = rule.conditionText;
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}
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if (rule.hasOwnProperty('cssRules')) {
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ruleClone.cssRules = clone(rule).cssRules;
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}
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}
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return cloned;
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};
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//.CommonJS
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exports.clone = CSSOM.clone;
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///CommonJS
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