1  //.CommonJS
 2  var CSSOM = {
 3  	StyleSheet: require("./StyleSheet").StyleSheet,
 4  	CSSStyleRule: require("./CSSStyleRule").CSSStyleRule
 5  };
 6  ///CommonJS
 7  
 8  
 9  /**
10   * @constructor
11   * @see http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSStyleSheet
12   */
13  CSSOM.CSSStyleSheet = function CSSStyleSheet() {
14  	CSSOM.StyleSheet.call(this);
15  	this.cssRules = [];
16  };
17  
18  
19  CSSOM.CSSStyleSheet.prototype = new CSSOM.StyleSheet();
20  CSSOM.CSSStyleSheet.prototype.constructor = CSSOM.CSSStyleSheet;
21  
22  
23  /**
24   * Used to insert a new rule into the style sheet. The new rule now becomes part of the cascade.
25   *
26   *   sheet = new Sheet("body {margin: 0}")
27   *   sheet.toString()
28   *   -> "body{margin:0;}"
29   *   sheet.insertRule("img {border: none}", 0)
30   *   -> 0
31   *   sheet.toString()
32   *   -> "img{border:none;}body{margin:0;}"
33   *
34   * @param {string} rule
35   * @param {number} index
36   * @see http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSStyleSheet-insertRule
37   * @return {number} The index within the style sheet's rule collection of the newly inserted rule.
38   */
39  CSSOM.CSSStyleSheet.prototype.insertRule = function(rule, index) {
40  	if (index < 0 || index > this.cssRules.length) {
41  		throw new RangeError("INDEX_SIZE_ERR");
42  	}
43  	var cssRule = CSSOM.parse(rule).cssRules[0];
44  	cssRule.parentStyleSheet = this;
45  	this.cssRules.splice(index, 0, cssRule);
46  	return index;
47  };
48  
49  
50  /**
51   * Used to delete a rule from the style sheet.
52   *
53   *   sheet = new Sheet("img{border:none} body{margin:0}")
54   *   sheet.toString()
55   *   -> "img{border:none;}body{margin:0;}"
56   *   sheet.deleteRule(0)
57   *   sheet.toString()
58   *   -> "body{margin:0;}"
59   *
60   * @param {number} index within the style sheet's rule list of the rule to remove.
61   * @see http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSStyleSheet-deleteRule
62   */
63  CSSOM.CSSStyleSheet.prototype.deleteRule = function(index) {
64  	if (index < 0 || index >= this.cssRules.length) {
65  		throw new RangeError("INDEX_SIZE_ERR");
66  	}
67  	this.cssRules.splice(index, 1);
68  };
69  
70  
71  /**
72   * NON-STANDARD
73   * @return {string} serialize stylesheet
74   */
75  CSSOM.CSSStyleSheet.prototype.toString = function() {
76  	var result = "";
77  	var rules = this.cssRules;
78  	for (var i=0; i<rules.length; i++) {
79  		result += rules[i].cssText + "\n";
80  	}
81  	return result;
82  };
83  
84  
85  //.CommonJS
86  exports.CSSStyleSheet = CSSOM.CSSStyleSheet;
87  CSSOM.parse = require('./parse').parse; // Cannot be included sooner due to the mutual dependency between parse.js and CSSStyleSheet.js
88  ///CommonJS