src/cm/media/js/lib/yui/yui3.0.0/api/stylesheet.js.html
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     1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
       
     2 <html xmlns:yui="http://yuilibrary.com/rdf/1.0/yui.rdf#">
       
     3 <head>
       
     4     <meta http-equiv="content-type" content="text/html; charset=UTF-8" />
       
     5 	<title>API: stylesheet   stylesheet.js  (YUI Library)</title>
       
     6 
       
     7 	<link rel="stylesheet" type="text/css" href="assets/reset-fonts-grids-min.css" />
       
     8 	<link rel="stylesheet" type="text/css" href="assets/api.css" />
       
     9 
       
    10     <script type="text/javascript" src="assets/api-js"></script>
       
    11     <script type="text/javascript" src="assets/ac-js"></script>
       
    12 </head>
       
    13 
       
    14 <body id="yahoo-com">
       
    15 
       
    16 <div id="doc3" class="yui-t2">
       
    17 	<div id="hd">
       
    18         <h1><a href="http://developer.yahoo.com/yui/" title="Yahoo! UI Library">Yahoo! UI Library</a></h1>
       
    19         <h3>stylesheet&nbsp; <span class="subtitle">3.0.0</span></h3>
       
    20         <a href="./index.html" title="Yahoo! UI Library">Yahoo! UI Library</a> 
       
    21             &gt; <a href="./module_stylesheet.html" title="stylesheet">stylesheet</a>
       
    22                 
       
    23                  &gt; stylesheet.js (source view) 
       
    24         <form onsubmit="return false">
       
    25             <div id="propertysearch">
       
    26                 Search: <input autocomplete="off" id="searchinput" />
       
    27                 <div id="searchresults">
       
    28                     &nbsp;
       
    29                 </div>
       
    30             </div>
       
    31         </form>
       
    32 	</div>
       
    33 
       
    34 	<div id="bd">
       
    35 		<div id="yui-main">
       
    36 			<div class="yui-b">
       
    37             <form action="#" name="yui-classopts-form" method="get" id="yui-classopts-form">
       
    38                 <fieldset>
       
    39                     <legend>Filters</legend>
       
    40                 <span class="classopts"><input type="checkbox" name="show_private" id="show_private" /> <label for="show_private">Show Private</label></span>
       
    41                 <span class="classopts"><input type="checkbox" name="show_protected" id="show_protected" /> <label for="show_protected">Show Protected</label></span>
       
    42                 <span class="classopts"><input type="checkbox" name="show_deprecated" id="show_deprecated" /> <label for="show_deprecated">Show Deprecated</label></span>
       
    43                 </fieldset>
       
    44             </form>
       
    45 
       
    46                     <div id="srcout">
       
    47                         <style>
       
    48                             #doc3 .classopts { display:none; }
       
    49                         </style>
       
    50                         <div class="highlight" ><pre><span class="c">/**</span>
       
    51 <span class="c"> * The StyleSheet component is a module for creating and modifying CSS</span>
       
    52 <span class="c"> * stylesheets.</span>
       
    53 <span class="c"> *</span>
       
    54 <span class="c"> * @module stylesheet</span>
       
    55 <span class="c"> */</span>
       
    56 <span class="k">var</span> <span class="nx">d</span>      <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">config</span><span class="o">.</span><span class="nx">doc</span><span class="o">,</span>
       
    57     <span class="nx">p</span>      <span class="o">=</span> <span class="nx">d</span><span class="o">.</span><span class="nx">createElement</span><span class="o">(</span><span class="s1">&#39;p&#39;</span><span class="o">),</span> <span class="c">// Have to hold the node (see notes)</span>
       
    58 <span class="c"></span>    <span class="nx">workerStyle</span> <span class="o">=</span> <span class="nx">p</span><span class="o">.</span><span class="nx">style</span><span class="o">,</span> <span class="c">// worker style collection</span>
       
    59 <span class="c"></span>    <span class="nx">isString</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Lang</span><span class="o">.</span><span class="nx">isString</span><span class="o">,</span>
       
    60     <span class="nx">selectors</span> <span class="o">=</span> <span class="o">{},</span>
       
    61     <span class="nx">sheets</span> <span class="o">=</span> <span class="o">{},</span>
       
    62     <span class="nx">floatAttr</span> <span class="o">=</span> <span class="o">(</span><span class="s1">&#39;cssFloat&#39;</span> <span class="k">in</span> <span class="nx">workerStyle</span><span class="o">)</span> <span class="o">?</span> <span class="s1">&#39;cssFloat&#39;</span> <span class="o">:</span> <span class="s1">&#39;styleFloat&#39;</span><span class="o">,</span>
       
    63     <span class="nx">_toCssText</span><span class="o">,</span>
       
    64     <span class="nx">_unsetOpacity</span><span class="o">,</span>
       
    65     <span class="nx">_unsetProperty</span><span class="o">,</span>
       
    66     <span class="nx">OPACITY</span> <span class="o">=</span> <span class="s1">&#39;opacity&#39;</span><span class="o">,</span>
       
    67     <span class="nx">FLOAT</span>   <span class="o">=</span> <span class="s1">&#39;float&#39;</span><span class="o">,</span>
       
    68     <span class="nx">EMPTY</span>   <span class="o">=</span> <span class="s1">&#39;&#39;</span><span class="o">;</span>
       
    69 
       
    70 <span class="c">// Normalizes the removal of an assigned style for opacity.  IE uses the filter</span>
       
    71 <span class="c">// property.</span>
       
    72 <span class="c"></span><span class="nx">_unsetOpacity</span> <span class="o">=</span> <span class="o">(</span><span class="nx">OPACITY</span> <span class="k">in</span> <span class="nx">workerStyle</span><span class="o">)</span> <span class="o">?</span>
       
    73     <span class="k">function</span> <span class="o">(</span><span class="nx">style</span><span class="o">)</span> <span class="o">{</span> <span class="nx">style</span><span class="o">.</span><span class="nx">opacity</span> <span class="o">=</span> <span class="nx">EMPTY</span><span class="o">;</span> <span class="o">}</span> <span class="o">:</span>
       
    74     <span class="k">function</span> <span class="o">(</span><span class="nx">style</span><span class="o">)</span> <span class="o">{</span> <span class="nx">style</span><span class="o">.</span><span class="nx">filter</span> <span class="o">=</span> <span class="nx">EMPTY</span><span class="o">;</span> <span class="o">};</span>
       
    75         
       
    76 <span class="c">// Normalizes the removal of an assigned style for a given property.  Expands</span>
       
    77 <span class="c">// shortcut properties if necessary and handles the various names for the float</span>
       
    78 <span class="c">// property.</span>
       
    79 <span class="c"></span><span class="nx">workerStyle</span><span class="o">.</span><span class="nx">border</span> <span class="o">=</span> <span class="s2">&quot;1px solid red&quot;</span><span class="o">;</span>
       
    80 <span class="nx">workerStyle</span><span class="o">.</span><span class="nx">border</span> <span class="o">=</span> <span class="nx">EMPTY</span><span class="o">;</span> <span class="c">// IE doesn&#39;t unset child properties</span>
       
    81 <span class="c"></span><span class="nx">_unsetProperty</span> <span class="o">=</span> <span class="nx">workerStyle</span><span class="o">.</span><span class="nx">borderLeft</span> <span class="o">?</span>
       
    82     <span class="k">function</span> <span class="o">(</span><span class="nx">style</span><span class="o">,</span><span class="nx">prop</span><span class="o">)</span> <span class="o">{</span>
       
    83         <span class="k">var</span> <span class="nx">p</span><span class="o">;</span>
       
    84         <span class="k">if</span> <span class="o">(</span><span class="nx">prop</span> <span class="o">!==</span> <span class="nx">floatAttr</span> <span class="o">&amp;&amp;</span> <span class="nx">prop</span><span class="o">.</span><span class="nx">toLowerCase</span><span class="o">().</span><span class="nx">indexOf</span><span class="o">(</span><span class="nx">FLOAT</span><span class="o">)</span> <span class="o">!=</span> <span class="o">-</span><span class="m">1</span><span class="o">)</span> <span class="o">{</span>
       
    85             <span class="nx">prop</span> <span class="o">=</span> <span class="nx">floatAttr</span><span class="o">;</span>
       
    86         <span class="o">}</span>
       
    87         <span class="k">if</span> <span class="o">(</span><span class="nx">isString</span><span class="o">(</span><span class="nx">style</span><span class="o">[</span><span class="nx">prop</span><span class="o">]))</span> <span class="o">{</span>
       
    88             <span class="nx">switch</span> <span class="o">(</span><span class="nx">prop</span><span class="o">)</span> <span class="o">{</span>
       
    89                 <span class="nx">case</span> <span class="nx">OPACITY</span><span class="o">:</span>
       
    90                 <span class="nx">case</span> <span class="s1">&#39;filter&#39;</span> <span class="o">:</span> <span class="nx">_unsetOpacity</span><span class="o">(</span><span class="nx">style</span><span class="o">);</span> <span class="k">break</span><span class="o">;</span>
       
    91                 <span class="nx">case</span> <span class="s1">&#39;font&#39;</span>   <span class="o">:</span>
       
    92                     <span class="nx">style</span><span class="o">.</span><span class="nx">font</span>       <span class="o">=</span> <span class="nx">style</span><span class="o">.</span><span class="nx">fontStyle</span> <span class="o">=</span> <span class="nx">style</span><span class="o">.</span><span class="nx">fontVariant</span> <span class="o">=</span>
       
    93                     <span class="nx">style</span><span class="o">.</span><span class="nx">fontWeight</span> <span class="o">=</span> <span class="nx">style</span><span class="o">.</span><span class="nx">fontSize</span>  <span class="o">=</span> <span class="nx">style</span><span class="o">.</span><span class="nx">lineHeight</span>  <span class="o">=</span>
       
    94                     <span class="nx">style</span><span class="o">.</span><span class="nx">fontFamily</span> <span class="o">=</span> <span class="nx">EMPTY</span><span class="o">;</span>
       
    95                     <span class="k">break</span><span class="o">;</span>
       
    96                 <span class="nx">default</span>       <span class="o">:</span>
       
    97                     <span class="k">for</span> <span class="o">(</span><span class="nx">p</span> <span class="k">in</span> <span class="nx">style</span><span class="o">)</span> <span class="o">{</span>
       
    98                         <span class="k">if</span> <span class="o">(</span><span class="nx">p</span><span class="o">.</span><span class="nx">indexOf</span><span class="o">(</span><span class="nx">prop</span><span class="o">)</span> <span class="o">===</span> <span class="m">0</span><span class="o">)</span> <span class="o">{</span>
       
    99                             <span class="nx">style</span><span class="o">[</span><span class="nx">p</span><span class="o">]</span> <span class="o">=</span> <span class="nx">EMPTY</span><span class="o">;</span>
       
   100                         <span class="o">}</span>
       
   101                     <span class="o">}</span>
       
   102             <span class="o">}</span>
       
   103         <span class="o">}</span>
       
   104     <span class="o">}</span> <span class="o">:</span>
       
   105     <span class="k">function</span> <span class="o">(</span><span class="nx">style</span><span class="o">,</span><span class="nx">prop</span><span class="o">)</span> <span class="o">{</span>
       
   106         <span class="k">if</span> <span class="o">(</span><span class="nx">prop</span> <span class="o">!==</span> <span class="nx">floatAttr</span> <span class="o">&amp;&amp;</span> <span class="nx">prop</span><span class="o">.</span><span class="nx">toLowerCase</span><span class="o">().</span><span class="nx">indexOf</span><span class="o">(</span><span class="nx">FLOAT</span><span class="o">)</span> <span class="o">!=</span> <span class="o">-</span><span class="m">1</span><span class="o">)</span> <span class="o">{</span>
       
   107             <span class="nx">prop</span> <span class="o">=</span> <span class="nx">floatAttr</span><span class="o">;</span>
       
   108         <span class="o">}</span>
       
   109         <span class="k">if</span> <span class="o">(</span><span class="nx">isString</span><span class="o">(</span><span class="nx">style</span><span class="o">[</span><span class="nx">prop</span><span class="o">]))</span> <span class="o">{</span>
       
   110             <span class="k">if</span> <span class="o">(</span><span class="nx">prop</span> <span class="o">===</span> <span class="nx">OPACITY</span><span class="o">)</span> <span class="o">{</span>
       
   111                 <span class="nx">_unsetOpacity</span><span class="o">(</span><span class="nx">style</span><span class="o">);</span>
       
   112             <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   113                 <span class="nx">style</span><span class="o">[</span><span class="nx">prop</span><span class="o">]</span> <span class="o">=</span> <span class="nx">EMPTY</span><span class="o">;</span>
       
   114             <span class="o">}</span>
       
   115         <span class="o">}</span>
       
   116     <span class="o">};</span>
       
   117     
       
   118 <span class="c">/**</span>
       
   119 <span class="c"> * Create an instance of StyleSheet to encapsulate a css stylesheet.</span>
       
   120 <span class="c"> * The constructor can be called using function or constructor syntax.</span>
       
   121 <span class="c"> * &lt;pre&gt;&lt;code&gt;var sheet = Y.StyleSheet(..);&lt;/pre&gt;&lt;/code&gt;</span>
       
   122 <span class="c"> * or</span>
       
   123 <span class="c"> * &lt;pre&gt;&lt;code&gt;var sheet = new Y.StyleSheet(..);&lt;/pre&gt;&lt;/code&gt;</span>
       
   124 <span class="c"> *</span>
       
   125 <span class="c"> * The first parameter passed can be any of the following things:</span>
       
   126 <span class="c"> * &lt;ul&gt;</span>
       
   127 <span class="c"> *   &lt;li&gt;The desired string name to register a new empty sheet&lt;/li&gt;</span>
       
   128 <span class="c"> *   &lt;li&gt;The string name of an existing StyleSheet instance&lt;/li&gt;</span>
       
   129 <span class="c"> *   &lt;li&gt;The unique guid generated for an existing StyleSheet instance&lt;/li&gt;</span>
       
   130 <span class="c"> *   &lt;li&gt;The id of an existing &lt;code&gt;&amp;lt;link&amp;gt;&lt;/code&gt; or &lt;code&gt;&amp;lt;style&amp;gt;&lt;/code&gt; node&lt;/li&gt;</span>
       
   131 <span class="c"> *   &lt;li&gt;The node reference for an existing &lt;code&gt;&amp;lt;link&amp;gt;&lt;/code&gt; or &lt;code&gt;&amp;lt;style&amp;gt;&lt;/code&gt; node&lt;/li&gt;</span>
       
   132 <span class="c"> *   &lt;li&gt;The Y.Node instance wrapping an existing &lt;code&gt;&amp;lt;link&amp;gt;&lt;/code&gt; or &lt;code&gt;&amp;lt;style&amp;gt;&lt;/code&gt; node&lt;/li&gt;</span>
       
   133 <span class="c"> *   &lt;li&gt;A chunk of css text to create a new stylesheet from&lt;/li&gt;</span>
       
   134 <span class="c"> * &lt;/ul&gt;</span>
       
   135 <span class="c"> *</span>
       
   136 <span class="c"> * &lt;p&gt;If a string is passed, StyleSheet will first look in its static name</span>
       
   137 <span class="c"> * registry for an existing sheet, then in the DOM for an element with that id.</span>
       
   138 <span class="c"> * If neither are found and the string contains the { character, it will be</span>
       
   139 <span class="c"> * used as a the initial cssText for a new StyleSheet.  Otherwise, a new empty</span>
       
   140 <span class="c"> * StyleSheet is created, assigned the string value as a name, and registered</span>
       
   141 <span class="c"> * statically by that name.&lt;/p&gt;</span>
       
   142 <span class="c"> *</span>
       
   143 <span class="c"> * &lt;p&gt;The optional second parameter is a string name to register the sheet as.</span>
       
   144 <span class="c"> * This param is largely useful when providing a node id/ref or chunk of css</span>
       
   145 <span class="c"> * text to create a populated instance.&lt;/p&gt;</span>
       
   146 <span class="c"> * </span>
       
   147 <span class="c"> * @class StyleSheet</span>
       
   148 <span class="c"> * @constructor</span>
       
   149 <span class="c"> * @param seed {String|HTMLElement|Node} a style or link node, its id, or a</span>
       
   150 <span class="c"> *              name or guid of a StyleSheet, or a string of css text</span>
       
   151 <span class="c"> * @param name {String} (optional) name to register instance for future static</span>
       
   152 <span class="c"> *              access</span>
       
   153 <span class="c"> */</span>
       
   154 <span class="k">function</span> <span class="nx">StyleSheet</span><span class="o">(</span><span class="nx">seed</span><span class="o">,</span> <span class="nx">name</span><span class="o">)</span> <span class="o">{</span>
       
   155     <span class="k">var</span> <span class="nx">head</span><span class="o">,</span>
       
   156         <span class="nx">node</span><span class="o">,</span>
       
   157         <span class="nx">sheet</span><span class="o">,</span>
       
   158         <span class="nx">cssRules</span> <span class="o">=</span> <span class="o">{},</span>
       
   159         <span class="nx">_rules</span><span class="o">,</span>
       
   160         <span class="nx">_insertRule</span><span class="o">,</span>
       
   161         <span class="nx">_deleteRule</span><span class="o">,</span>
       
   162         <span class="nx">i</span><span class="o">,</span><span class="nx">r</span><span class="o">,</span><span class="nx">sel</span><span class="o">;</span>
       
   163 
       
   164     <span class="c">// Factory or constructor</span>
       
   165 <span class="c"></span>    <span class="k">if</span> <span class="o">(!(</span><span class="k">this</span> <span class="k">instanceof</span> <span class="nx">StyleSheet</span><span class="o">))</span> <span class="o">{</span>
       
   166         <span class="k">return</span> <span class="k">new</span> <span class="nx">StyleSheet</span><span class="o">(</span><span class="nx">seed</span><span class="o">,</span><span class="nx">name</span><span class="o">);</span>
       
   167     <span class="o">}</span>
       
   168 
       
   169     <span class="c">// Extract the DOM node from Node instances</span>
       
   170 <span class="c"></span>    <span class="k">if</span> <span class="o">(</span><span class="nx">seed</span><span class="o">)</span> <span class="o">{</span>
       
   171         <span class="k">if</span> <span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">Node</span> <span class="o">&amp;&amp;</span> <span class="nx">seed</span> <span class="k">instanceof</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Node</span><span class="o">)</span> <span class="o">{</span>
       
   172             <span class="nx">node</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Node</span><span class="o">.</span><span class="nx">getDOMNode</span><span class="o">(</span><span class="nx">seed</span><span class="o">);</span>
       
   173         <span class="o">}</span> <span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">seed</span><span class="o">.</span><span class="nx">nodeName</span><span class="o">)</span> <span class="o">{</span>
       
   174             <span class="nx">node</span> <span class="o">=</span> <span class="nx">seed</span><span class="o">;</span>
       
   175         <span class="c">// capture the DOM node if the string is an id</span>
       
   176 <span class="c"></span>        <span class="o">}</span> <span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">isString</span><span class="o">(</span><span class="nx">seed</span><span class="o">))</span> <span class="o">{</span>
       
   177             <span class="k">if</span> <span class="o">(</span><span class="nx">seed</span> <span class="o">&amp;&amp;</span> <span class="nx">sheets</span><span class="o">[</span><span class="nx">seed</span><span class="o">])</span> <span class="o">{</span>
       
   178                 <span class="k">return</span> <span class="nx">sheets</span><span class="o">[</span><span class="nx">seed</span><span class="o">];</span>
       
   179             <span class="o">}</span>
       
   180             <span class="nx">node</span> <span class="o">=</span> <span class="nx">d</span><span class="o">.</span><span class="nx">getElementById</span><span class="o">(</span><span class="nx">seed</span><span class="o">.</span><span class="nx">replace</span><span class="o">(</span><span class="sr">/^#/</span><span class="o">,</span><span class="nx">EMPTY</span><span class="o">));</span>
       
   181         <span class="o">}</span>
       
   182 
       
   183         <span class="c">// Check for the StyleSheet in the static registry</span>
       
   184 <span class="c"></span>        <span class="k">if</span> <span class="o">(</span><span class="nx">node</span> <span class="o">&amp;&amp;</span> <span class="nx">sheets</span><span class="o">[</span><span class="nx">Y</span><span class="o">.</span><span class="nx">stamp</span><span class="o">(</span><span class="nx">node</span><span class="o">)])</span> <span class="o">{</span>
       
   185             <span class="k">return</span> <span class="nx">sheets</span><span class="o">[</span><span class="nx">Y</span><span class="o">.</span><span class="nx">stamp</span><span class="o">(</span><span class="nx">node</span><span class="o">)];</span>
       
   186         <span class="o">}</span>
       
   187     <span class="o">}</span>
       
   188 
       
   189 
       
   190     <span class="c">// Create a style node if necessary</span>
       
   191 <span class="c"></span>    <span class="k">if</span> <span class="o">(!</span><span class="nx">node</span> <span class="o">||</span> <span class="o">!</span><span class="sr">/^(?:style|link)$/i</span><span class="o">.</span><span class="nx">test</span><span class="o">(</span><span class="nx">node</span><span class="o">.</span><span class="nx">nodeName</span><span class="o">))</span> <span class="o">{</span>
       
   192         <span class="nx">node</span> <span class="o">=</span> <span class="nx">d</span><span class="o">.</span><span class="nx">createElement</span><span class="o">(</span><span class="s1">&#39;style&#39;</span><span class="o">);</span>
       
   193         <span class="nx">node</span><span class="o">.</span><span class="nx">type</span> <span class="o">=</span> <span class="s1">&#39;text/css&#39;</span><span class="o">;</span>
       
   194     <span class="o">}</span>
       
   195 
       
   196     <span class="k">if</span> <span class="o">(</span><span class="nx">isString</span><span class="o">(</span><span class="nx">seed</span><span class="o">))</span> <span class="o">{</span>
       
   197         <span class="c">// Create entire sheet from seed cssText</span>
       
   198 <span class="c"></span>        <span class="k">if</span> <span class="o">(</span><span class="nx">seed</span><span class="o">.</span><span class="nx">indexOf</span><span class="o">(</span><span class="s1">&#39;{&#39;</span><span class="o">)</span> <span class="o">!=</span> <span class="o">-</span><span class="m">1</span><span class="o">)</span> <span class="o">{</span>
       
   199             <span class="c">// Not a load-time fork because low run-time impact and IE fails</span>
       
   200 <span class="c"></span>            <span class="c">// test for s.styleSheet at page load time (oddly)</span>
       
   201 <span class="c"></span>            <span class="k">if</span> <span class="o">(</span><span class="nx">node</span><span class="o">.</span><span class="nx">styleSheet</span><span class="o">)</span> <span class="o">{</span>
       
   202                 <span class="nx">node</span><span class="o">.</span><span class="nx">styleSheet</span><span class="o">.</span><span class="nx">cssText</span> <span class="o">=</span> <span class="nx">seed</span><span class="o">;</span>
       
   203             <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   204                 <span class="nx">node</span><span class="o">.</span><span class="nx">appendChild</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">createTextNode</span><span class="o">(</span><span class="nx">seed</span><span class="o">));</span>
       
   205             <span class="o">}</span>
       
   206         <span class="o">}</span> <span class="k">else</span> <span class="k">if</span> <span class="o">(!</span><span class="nx">name</span><span class="o">)</span> <span class="o">{</span>
       
   207             <span class="nx">name</span> <span class="o">=</span> <span class="nx">seed</span><span class="o">;</span>
       
   208         <span class="o">}</span>
       
   209     <span class="o">}</span>
       
   210 
       
   211     <span class="c">// Make sure the node is attached to the appropriate head element</span>
       
   212 <span class="c"></span>    <span class="k">if</span> <span class="o">(!</span><span class="nx">node</span><span class="o">.</span><span class="nx">parentNode</span> <span class="o">||</span> <span class="nx">node</span><span class="o">.</span><span class="nx">parentNode</span><span class="o">.</span><span class="nx">nodeName</span><span class="o">.</span><span class="nx">toLowerCase</span><span class="o">()</span> <span class="o">!==</span> <span class="s1">&#39;head&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   213         <span class="nx">head</span> <span class="o">=</span> <span class="o">(</span><span class="nx">node</span><span class="o">.</span><span class="nx">ownerDocument</span> <span class="o">||</span> <span class="nx">d</span><span class="o">).</span><span class="nx">getElementsByTagName</span><span class="o">(</span><span class="s1">&#39;head&#39;</span><span class="o">)[</span><span class="m">0</span><span class="o">];</span>
       
   214         <span class="c">// styleSheet isn&#39;t available on the style node in FF2 until appended</span>
       
   215 <span class="c"></span>        <span class="c">// to the head element.  style nodes appended to body do not affect</span>
       
   216 <span class="c"></span>        <span class="c">// change in Safari.</span>
       
   217 <span class="c"></span>        <span class="nx">head</span><span class="o">.</span><span class="nx">appendChild</span><span class="o">(</span><span class="nx">node</span><span class="o">);</span>
       
   218     <span class="o">}</span>
       
   219 
       
   220     <span class="c">// Begin setting up private aliases to the important moving parts</span>
       
   221 <span class="c"></span>    <span class="c">// 1. The stylesheet object</span>
       
   222 <span class="c"></span>    <span class="c">// IE stores StyleSheet under the &quot;styleSheet&quot; property</span>
       
   223 <span class="c"></span>    <span class="c">// Safari doesn&#39;t populate sheet for xdomain link elements</span>
       
   224 <span class="c"></span>    <span class="nx">sheet</span> <span class="o">=</span> <span class="nx">node</span><span class="o">.</span><span class="nx">sheet</span> <span class="o">||</span> <span class="nx">node</span><span class="o">.</span><span class="nx">styleSheet</span><span class="o">;</span>
       
   225 
       
   226     <span class="c">// 2. The style rules collection</span>
       
   227 <span class="c"></span>    <span class="c">// IE stores the rules collection under the &quot;rules&quot; property</span>
       
   228 <span class="c"></span>    <span class="nx">_rules</span> <span class="o">=</span> <span class="nx">sheet</span> <span class="o">&amp;&amp;</span> <span class="o">(</span><span class="s1">&#39;cssRules&#39;</span> <span class="k">in</span> <span class="nx">sheet</span><span class="o">)</span> <span class="o">?</span> <span class="s1">&#39;cssRules&#39;</span> <span class="o">:</span> <span class="s1">&#39;rules&#39;</span><span class="o">;</span>
       
   229 
       
   230     <span class="c">// 3. The method to remove a rule from the stylesheet</span>
       
   231 <span class="c"></span>    <span class="c">// IE supports removeRule</span>
       
   232 <span class="c"></span>    <span class="nx">_deleteRule</span> <span class="o">=</span> <span class="o">(</span><span class="s1">&#39;deleteRule&#39;</span> <span class="k">in</span> <span class="nx">sheet</span><span class="o">)</span> <span class="o">?</span>
       
   233         <span class="k">function</span> <span class="o">(</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> <span class="nx">sheet</span><span class="o">.</span><span class="nx">deleteRule</span><span class="o">(</span><span class="nx">i</span><span class="o">);</span> <span class="o">}</span> <span class="o">:</span>
       
   234         <span class="k">function</span> <span class="o">(</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> <span class="nx">sheet</span><span class="o">.</span><span class="nx">removeRule</span><span class="o">(</span><span class="nx">i</span><span class="o">);</span> <span class="o">};</span>
       
   235 
       
   236     <span class="c">// 4. The method to add a new rule to the stylesheet</span>
       
   237 <span class="c"></span>    <span class="c">// IE supports addRule with different signature</span>
       
   238 <span class="c"></span>    <span class="nx">_insertRule</span> <span class="o">=</span> <span class="o">(</span><span class="s1">&#39;insertRule&#39;</span> <span class="k">in</span> <span class="nx">sheet</span><span class="o">)</span> <span class="o">?</span>
       
   239         <span class="k">function</span> <span class="o">(</span><span class="nx">sel</span><span class="o">,</span><span class="nx">css</span><span class="o">,</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> <span class="nx">sheet</span><span class="o">.</span><span class="nx">insertRule</span><span class="o">(</span><span class="nx">sel</span><span class="o">+</span><span class="s1">&#39; {&#39;</span><span class="o">+</span><span class="nx">css</span><span class="o">+</span><span class="s1">&#39;}&#39;</span><span class="o">,</span><span class="nx">i</span><span class="o">);</span> <span class="o">}</span> <span class="o">:</span>
       
   240         <span class="k">function</span> <span class="o">(</span><span class="nx">sel</span><span class="o">,</span><span class="nx">css</span><span class="o">,</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span> <span class="nx">sheet</span><span class="o">.</span><span class="nx">addRule</span><span class="o">(</span><span class="nx">sel</span><span class="o">,</span><span class="nx">css</span><span class="o">,</span><span class="nx">i</span><span class="o">);</span> <span class="o">};</span>
       
   241 
       
   242     <span class="c">// 5. Initialize the cssRules map from the node</span>
       
   243 <span class="c"></span>    <span class="c">// xdomain link nodes forbid access to the cssRules collection, so this</span>
       
   244 <span class="c"></span>    <span class="c">// will throw an error.</span>
       
   245 <span class="c"></span>    <span class="c">// TODO: research alternate stylesheet, @media</span>
       
   246 <span class="c"></span>    <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="nx">sheet</span><span class="o">[</span><span class="nx">_rules</span><span class="o">].</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o">&gt;=</span> <span class="m">0</span><span class="o">;</span> <span class="o">--</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span>
       
   247         <span class="nx">r</span>   <span class="o">=</span> <span class="nx">sheet</span><span class="o">[</span><span class="nx">_rules</span><span class="o">][</span><span class="nx">i</span><span class="o">];</span>
       
   248         <span class="nx">sel</span> <span class="o">=</span> <span class="nx">r</span><span class="o">.</span><span class="nx">selectorText</span><span class="o">;</span>
       
   249 
       
   250         <span class="k">if</span> <span class="o">(</span><span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">])</span> <span class="o">{</span>
       
   251             <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">].</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span> <span class="o">+=</span> <span class="s1">&#39;;&#39;</span> <span class="o">+</span> <span class="nx">r</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span><span class="o">;</span>
       
   252             <span class="nx">_deleteRule</span><span class="o">(</span><span class="nx">i</span><span class="o">);</span>
       
   253         <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   254             <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">]</span> <span class="o">=</span> <span class="nx">r</span><span class="o">;</span>
       
   255         <span class="o">}</span>
       
   256     <span class="o">}</span>
       
   257 
       
   258     <span class="c">// Cache the instance by the generated Id</span>
       
   259 <span class="c"></span>    <span class="nx">StyleSheet</span><span class="o">.</span><span class="nx">register</span><span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">stamp</span><span class="o">(</span><span class="nx">node</span><span class="o">),</span><span class="k">this</span><span class="o">);</span>
       
   260 
       
   261     <span class="c">// Register the instance by name if provided or defaulted from seed</span>
       
   262 <span class="c"></span>    <span class="k">if</span> <span class="o">(</span><span class="nx">name</span><span class="o">)</span> <span class="o">{</span>
       
   263         <span class="nx">StyleSheet</span><span class="o">.</span><span class="nx">register</span><span class="o">(</span><span class="nx">name</span><span class="o">,</span><span class="k">this</span><span class="o">);</span>
       
   264     <span class="o">}</span>
       
   265 
       
   266     <span class="c">// Public API</span>
       
   267 <span class="c"></span>    <span class="nx">Y</span><span class="o">.</span><span class="nx">mix</span><span class="o">(</span><span class="k">this</span><span class="o">,{</span>
       
   268         <span class="c">/**</span>
       
   269 <span class="c">         * Get the unique stamp for this StyleSheet instance</span>
       
   270 <span class="c">         *</span>
       
   271 <span class="c">         * @method getId</span>
       
   272 <span class="c">         * @return {Number} the static id</span>
       
   273 <span class="c">         */</span>
       
   274         <span class="nx">getId</span> <span class="o">:</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span> <span class="k">return</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">stamp</span><span class="o">(</span><span class="nx">node</span><span class="o">);</span> <span class="o">},</span>
       
   275 
       
   276         <span class="c">/**</span>
       
   277 <span class="c">         * Enable all the rules in the sheet</span>
       
   278 <span class="c">         *</span>
       
   279 <span class="c">         * @method enable</span>
       
   280 <span class="c">         * @return {StyleSheet}</span>
       
   281 <span class="c">         * @chainable</span>
       
   282 <span class="c">         */</span>
       
   283         <span class="nx">enable</span> <span class="o">:</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span> <span class="nx">sheet</span><span class="o">.</span><span class="nx">disabled</span> <span class="o">=</span> <span class="kc">false</span><span class="o">;</span> <span class="k">return</span> <span class="k">this</span><span class="o">;</span> <span class="o">},</span>
       
   284 
       
   285         <span class="c">/**</span>
       
   286 <span class="c">         * Disable all the rules in the sheet.  Rules may be changed while the</span>
       
   287 <span class="c">         * StyleSheet is disabled.</span>
       
   288 <span class="c">         *</span>
       
   289 <span class="c">         * @method disable</span>
       
   290 <span class="c">         * @return {StyleSheet}</span>
       
   291 <span class="c">         * @chainable</span>
       
   292 <span class="c">         */</span>
       
   293         <span class="nx">disable</span> <span class="o">:</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span> <span class="nx">sheet</span><span class="o">.</span><span class="nx">disabled</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span> <span class="k">return</span> <span class="k">this</span><span class="o">;</span> <span class="o">},</span>
       
   294 
       
   295         <span class="c">/**</span>
       
   296 <span class="c">         * Returns false if the StyleSheet is disabled.  Otherwise true.</span>
       
   297 <span class="c">         *</span>
       
   298 <span class="c">         * @method isEnabled</span>
       
   299 <span class="c">         * @return {Boolean}</span>
       
   300 <span class="c">         */</span>
       
   301         <span class="nx">isEnabled</span> <span class="o">:</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span> <span class="k">return</span> <span class="o">!</span><span class="nx">sheet</span><span class="o">.</span><span class="nx">disabled</span><span class="o">;</span> <span class="o">},</span>
       
   302 
       
   303         <span class="c">/**</span>
       
   304 <span class="c">         * &lt;p&gt;Set style properties for a provided selector string.</span>
       
   305 <span class="c">         * If the selector includes commas, it will be split into individual</span>
       
   306 <span class="c">         * selectors and applied accordingly.  If the selector string does not</span>
       
   307 <span class="c">         * have a corresponding rule in the sheet, it will be added.&lt;/p&gt;</span>
       
   308 <span class="c">         *</span>
       
   309 <span class="c">         * &lt;p&gt;The object properties in the second parameter must be the JavaScript</span>
       
   310 <span class="c">         * names of style properties.  E.g. fontSize rather than font-size.&lt;/p&gt;</span>
       
   311 <span class="c">         *</span>
       
   312 <span class="c">         * &lt;p&gt;The float style property will be set by any of &amp;quot;float&amp;quot;,</span>
       
   313 <span class="c">         * &amp;quot;styleFloat&amp;quot;, or &amp;quot;cssFloat&amp;quot;.&lt;/p&gt;</span>
       
   314 <span class="c">         *</span>
       
   315 <span class="c">         * @method set</span>
       
   316 <span class="c">         * @param sel {String} the selector string to apply the changes to</span>
       
   317 <span class="c">         * @param css {Object} Object literal of style properties and new values</span>
       
   318 <span class="c">         * @return {StyleSheet}</span>
       
   319 <span class="c">         * @chainable</span>
       
   320 <span class="c">         */</span>
       
   321         <span class="nx">set</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">sel</span><span class="o">,</span><span class="nx">css</span><span class="o">)</span> <span class="o">{</span>
       
   322             <span class="k">var</span> <span class="nx">rule</span> <span class="o">=</span> <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">],</span>
       
   323                 <span class="nx">multi</span> <span class="o">=</span> <span class="nx">sel</span><span class="o">.</span><span class="nx">split</span><span class="o">(</span><span class="sr">/\s*,\s*/</span><span class="o">),</span><span class="nx">i</span><span class="o">,</span>
       
   324                 <span class="nx">idx</span><span class="o">;</span>
       
   325 
       
   326             <span class="c">// IE&#39;s addRule doesn&#39;t support multiple comma delimited selectors</span>
       
   327 <span class="c"></span>            <span class="k">if</span> <span class="o">(</span><span class="nx">multi</span><span class="o">.</span><span class="nx">length</span> <span class="o">&gt;</span> <span class="m">1</span><span class="o">)</span> <span class="o">{</span>
       
   328                 <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="nx">multi</span><span class="o">.</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o">&gt;=</span> <span class="m">0</span><span class="o">;</span> <span class="o">--</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span>
       
   329                     <span class="k">this</span><span class="o">.</span><span class="nx">set</span><span class="o">(</span><span class="nx">multi</span><span class="o">[</span><span class="nx">i</span><span class="o">],</span> <span class="nx">css</span><span class="o">);</span>
       
   330                 <span class="o">}</span>
       
   331                 <span class="k">return</span> <span class="k">this</span><span class="o">;</span>
       
   332             <span class="o">}</span>
       
   333 
       
   334             <span class="c">// Some selector values can cause IE to hang</span>
       
   335 <span class="c"></span>            <span class="k">if</span> <span class="o">(!</span><span class="nx">StyleSheet</span><span class="o">.</span><span class="nx">isValidSelector</span><span class="o">(</span><span class="nx">sel</span><span class="o">))</span> <span class="o">{</span>
       
   336                 <span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s2">&quot;Invalid selector &#39;&quot;</span><span class="o">+</span><span class="nx">sel</span><span class="o">+</span><span class="s2">&quot;&#39; passed to set (ignoring).&quot;</span><span class="o">,</span><span class="s1">&#39;error&#39;</span><span class="o">,</span><span class="s1">&#39;StyleSheet&#39;</span><span class="o">);</span>
       
   337                 <span class="k">return</span> <span class="k">this</span><span class="o">;</span>
       
   338             <span class="o">}</span>
       
   339 
       
   340             <span class="c">// Opera throws an error if there&#39;s a syntax error in assigned</span>
       
   341 <span class="c"></span>            <span class="c">// cssText. Avoid this using a worker style collection, then</span>
       
   342 <span class="c"></span>            <span class="c">// assigning the resulting cssText.</span>
       
   343 <span class="c"></span>            <span class="k">if</span> <span class="o">(</span><span class="nx">rule</span><span class="o">)</span> <span class="o">{</span>
       
   344                 <span class="nx">rule</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span> <span class="o">=</span> <span class="nx">StyleSheet</span><span class="o">.</span><span class="nx">toCssText</span><span class="o">(</span><span class="nx">css</span><span class="o">,</span><span class="nx">rule</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span><span class="o">);</span>
       
   345             <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   346                 <span class="nx">idx</span> <span class="o">=</span> <span class="nx">sheet</span><span class="o">[</span><span class="nx">_rules</span><span class="o">].</span><span class="nx">length</span><span class="o">;</span>
       
   347                 <span class="nx">css</span> <span class="o">=</span> <span class="nx">StyleSheet</span><span class="o">.</span><span class="nx">toCssText</span><span class="o">(</span><span class="nx">css</span><span class="o">);</span>
       
   348 
       
   349                 <span class="c">// IE throws an error when attempting to addRule(sel,&#39;&#39;,n)</span>
       
   350 <span class="c"></span>                <span class="c">// which would crop up if no, or only invalid values are used</span>
       
   351 <span class="c"></span>                <span class="k">if</span> <span class="o">(</span><span class="nx">css</span><span class="o">)</span> <span class="o">{</span>
       
   352                     <span class="nx">_insertRule</span><span class="o">(</span><span class="nx">sel</span><span class="o">,</span> <span class="nx">css</span><span class="o">,</span> <span class="nx">idx</span><span class="o">);</span>
       
   353 
       
   354                     <span class="c">// Safari replaces the rules collection, but maintains the</span>
       
   355 <span class="c"></span>                    <span class="c">// rule instances in the new collection when rules are</span>
       
   356 <span class="c"></span>                    <span class="c">// added/removed</span>
       
   357 <span class="c"></span>                    <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">]</span> <span class="o">=</span> <span class="nx">sheet</span><span class="o">[</span><span class="nx">_rules</span><span class="o">][</span><span class="nx">idx</span><span class="o">];</span>
       
   358                 <span class="o">}</span>
       
   359             <span class="o">}</span>
       
   360             <span class="k">return</span> <span class="k">this</span><span class="o">;</span>
       
   361         <span class="o">},</span>
       
   362 
       
   363         <span class="c">/**</span>
       
   364 <span class="c">         * &lt;p&gt;Unset style properties for a provided selector string, removing</span>
       
   365 <span class="c">         * their effect from the style cascade.&lt;/p&gt;</span>
       
   366 <span class="c">         *</span>
       
   367 <span class="c">         * &lt;p&gt;If the selector includes commas, it will be split into individual</span>
       
   368 <span class="c">         * selectors and applied accordingly.  If there are no properties</span>
       
   369 <span class="c">         * remaining in the rule after unsetting, the rule is removed.&lt;/p&gt;</span>
       
   370 <span class="c">         *</span>
       
   371 <span class="c">         * &lt;p&gt;The style property or properties in the second parameter must be the</span>
       
   372 <span class="c">         * JavaScript style property names. E.g. fontSize rather than font-size.&lt;/p&gt;</span>
       
   373 <span class="c">         *</span>
       
   374 <span class="c">         * &lt;p&gt;The float style property will be unset by any of &amp;quot;float&amp;quot;,</span>
       
   375 <span class="c">         * &amp;quot;styleFloat&amp;quot;, or &amp;quot;cssFloat&amp;quot;.&lt;/p&gt;</span>
       
   376 <span class="c">         *</span>
       
   377 <span class="c">         * @method unset</span>
       
   378 <span class="c">         * @param sel {String} the selector string to apply the changes to</span>
       
   379 <span class="c">         * @param css {String|Array} style property name or Array of names</span>
       
   380 <span class="c">         * @return {StyleSheet}</span>
       
   381 <span class="c">         * @chainable</span>
       
   382 <span class="c">         */</span>
       
   383         <span class="nx">unset</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">sel</span><span class="o">,</span><span class="nx">css</span><span class="o">)</span> <span class="o">{</span>
       
   384             <span class="k">var</span> <span class="nx">rule</span> <span class="o">=</span> <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">],</span>
       
   385                 <span class="nx">multi</span> <span class="o">=</span> <span class="nx">sel</span><span class="o">.</span><span class="nx">split</span><span class="o">(</span><span class="sr">/\s*,\s*/</span><span class="o">),</span>
       
   386                 <span class="nx">remove</span> <span class="o">=</span> <span class="o">!</span><span class="nx">css</span><span class="o">,</span>
       
   387                 <span class="nx">rules</span><span class="o">,</span> <span class="nx">i</span><span class="o">;</span>
       
   388 
       
   389             <span class="c">// IE&#39;s addRule doesn&#39;t support multiple comma delimited selectors</span>
       
   390 <span class="c"></span>            <span class="c">// so rules are mapped internally by atomic selectors</span>
       
   391 <span class="c"></span>            <span class="k">if</span> <span class="o">(</span><span class="nx">multi</span><span class="o">.</span><span class="nx">length</span> <span class="o">&gt;</span> <span class="m">1</span><span class="o">)</span> <span class="o">{</span>
       
   392                 <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="nx">multi</span><span class="o">.</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o">&gt;=</span> <span class="m">0</span><span class="o">;</span> <span class="o">--</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span>
       
   393                     <span class="k">this</span><span class="o">.</span><span class="nx">unset</span><span class="o">(</span><span class="nx">multi</span><span class="o">[</span><span class="nx">i</span><span class="o">],</span> <span class="nx">css</span><span class="o">);</span>
       
   394                 <span class="o">}</span>
       
   395                 <span class="k">return</span> <span class="k">this</span><span class="o">;</span>
       
   396             <span class="o">}</span>
       
   397 
       
   398             <span class="k">if</span> <span class="o">(</span><span class="nx">rule</span><span class="o">)</span> <span class="o">{</span>
       
   399                 <span class="k">if</span> <span class="o">(!</span><span class="nx">remove</span><span class="o">)</span> <span class="o">{</span>
       
   400                     <span class="nx">css</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nb">Array</span><span class="o">(</span><span class="nx">css</span><span class="o">);</span>
       
   401 
       
   402                     <span class="nx">workerStyle</span><span class="o">.</span><span class="nx">cssText</span> <span class="o">=</span> <span class="nx">rule</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span><span class="o">;</span>
       
   403                     <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="nx">css</span><span class="o">.</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o">&gt;=</span> <span class="m">0</span><span class="o">;</span> <span class="o">--</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span>
       
   404                         <span class="nx">_unsetProperty</span><span class="o">(</span><span class="nx">workerStyle</span><span class="o">,</span><span class="nx">css</span><span class="o">[</span><span class="nx">i</span><span class="o">]);</span>
       
   405                     <span class="o">}</span>
       
   406 
       
   407                     <span class="k">if</span> <span class="o">(</span><span class="nx">workerStyle</span><span class="o">.</span><span class="nx">cssText</span><span class="o">)</span> <span class="o">{</span>
       
   408                         <span class="nx">rule</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span> <span class="o">=</span> <span class="nx">workerStyle</span><span class="o">.</span><span class="nx">cssText</span><span class="o">;</span>
       
   409                     <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   410                         <span class="nx">remove</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   411                     <span class="o">}</span>
       
   412                 <span class="o">}</span>
       
   413                 
       
   414                 <span class="k">if</span> <span class="o">(</span><span class="nx">remove</span><span class="o">)</span> <span class="o">{</span> <span class="c">// remove the rule altogether</span>
       
   415 <span class="c"></span>                    <span class="nx">rules</span> <span class="o">=</span> <span class="nx">sheet</span><span class="o">[</span><span class="nx">_rules</span><span class="o">];</span>
       
   416                     <span class="k">for</span> <span class="o">(</span><span class="nx">i</span> <span class="o">=</span> <span class="nx">rules</span><span class="o">.</span><span class="nx">length</span> <span class="o">-</span> <span class="m">1</span><span class="o">;</span> <span class="nx">i</span> <span class="o">&gt;=</span> <span class="m">0</span><span class="o">;</span> <span class="o">--</span><span class="nx">i</span><span class="o">)</span> <span class="o">{</span>
       
   417                         <span class="k">if</span> <span class="o">(</span><span class="nx">rules</span><span class="o">[</span><span class="nx">i</span><span class="o">]</span> <span class="o">===</span> <span class="nx">rule</span><span class="o">)</span> <span class="o">{</span>
       
   418                             <span class="nx">delete</span> <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">];</span>
       
   419                             <span class="nx">_deleteRule</span><span class="o">(</span><span class="nx">i</span><span class="o">);</span>
       
   420                             <span class="k">break</span><span class="o">;</span>
       
   421                         <span class="o">}</span>
       
   422                     <span class="o">}</span>
       
   423                 <span class="o">}</span>
       
   424             <span class="o">}</span>
       
   425             <span class="k">return</span> <span class="k">this</span><span class="o">;</span>
       
   426         <span class="o">},</span>
       
   427 
       
   428         <span class="c">/**</span>
       
   429 <span class="c">         * Get the current cssText for a rule or the entire sheet.  If the</span>
       
   430 <span class="c">         * selector param is supplied, only the cssText for that rule will be</span>
       
   431 <span class="c">         * returned, if found.  If the selector string targets multiple</span>
       
   432 <span class="c">         * selectors separated by commas, the cssText of the first rule only</span>
       
   433 <span class="c">         * will be returned.  If no selector string, the stylesheet&#39;s full</span>
       
   434 <span class="c">         * cssText will be returned.</span>
       
   435 <span class="c">         *</span>
       
   436 <span class="c">         * @method getCssText</span>
       
   437 <span class="c">         * @param sel {String} Selector string</span>
       
   438 <span class="c">         * @return {String}</span>
       
   439 <span class="c">         */</span>
       
   440         <span class="nx">getCssText</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">sel</span><span class="o">)</span> <span class="o">{</span>
       
   441             <span class="k">var</span> <span class="nx">rule</span><span class="o">,</span><span class="nx">css</span><span class="o">;</span>
       
   442 
       
   443             <span class="k">if</span> <span class="o">(</span><span class="nx">isString</span><span class="o">(</span><span class="nx">sel</span><span class="o">))</span> <span class="o">{</span>
       
   444                 <span class="c">// IE&#39;s addRule doesn&#39;t support multiple comma delimited</span>
       
   445 <span class="c"></span>                <span class="c">// selectors so rules are mapped internally by atomic selectors</span>
       
   446 <span class="c"></span>                <span class="nx">rule</span> <span class="o">=</span> <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">.</span><span class="nx">split</span><span class="o">(</span><span class="sr">/\s*,\s*/</span><span class="o">)[</span><span class="m">0</span><span class="o">]];</span>
       
   447 
       
   448                 <span class="k">return</span> <span class="nx">rule</span> <span class="o">?</span> <span class="nx">rule</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span> <span class="o">:</span> <span class="kc">null</span><span class="o">;</span>
       
   449             <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   450                 <span class="nx">css</span> <span class="o">=</span> <span class="o">[];</span>
       
   451                 <span class="k">for</span> <span class="o">(</span><span class="nx">sel</span> <span class="k">in</span> <span class="nx">cssRules</span><span class="o">)</span> <span class="o">{</span>
       
   452                     <span class="k">if</span> <span class="o">(</span><span class="nx">cssRules</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">sel</span><span class="o">))</span> <span class="o">{</span>
       
   453                         <span class="nx">rule</span> <span class="o">=</span> <span class="nx">cssRules</span><span class="o">[</span><span class="nx">sel</span><span class="o">];</span>
       
   454                         <span class="nx">css</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="nx">rule</span><span class="o">.</span><span class="nx">selectorText</span><span class="o">+</span><span class="s2">&quot; {&quot;</span><span class="o">+</span><span class="nx">rule</span><span class="o">.</span><span class="nx">style</span><span class="o">.</span><span class="nx">cssText</span><span class="o">+</span><span class="s2">&quot;}&quot;</span><span class="o">);</span>
       
   455                     <span class="o">}</span>
       
   456                 <span class="o">}</span>
       
   457                 <span class="k">return</span> <span class="nx">css</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="s2">&quot;\n&quot;</span><span class="o">);</span>
       
   458             <span class="o">}</span>
       
   459         <span class="o">}</span>
       
   460     <span class="o">});</span>
       
   461 
       
   462 <span class="o">}</span>
       
   463 
       
   464 <span class="nx">_toCssText</span> <span class="o">=</span> <span class="k">function</span> <span class="o">(</span><span class="nx">css</span><span class="o">,</span><span class="nx">base</span><span class="o">)</span> <span class="o">{</span>
       
   465     <span class="k">var</span> <span class="nx">f</span>    <span class="o">=</span> <span class="nx">css</span><span class="o">.</span><span class="nx">styleFloat</span> <span class="o">||</span> <span class="nx">css</span><span class="o">.</span><span class="nx">cssFloat</span> <span class="o">||</span> <span class="nx">css</span><span class="o">[</span><span class="nx">FLOAT</span><span class="o">],</span>
       
   466         <span class="nx">trim</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Lang</span><span class="o">.</span><span class="nx">trim</span><span class="o">,</span>
       
   467         <span class="nx">prop</span><span class="o">;</span>
       
   468 
       
   469     <span class="nx">workerStyle</span><span class="o">.</span><span class="nx">cssText</span> <span class="o">=</span> <span class="nx">base</span> <span class="o">||</span> <span class="nx">EMPTY</span><span class="o">;</span>
       
   470 
       
   471     <span class="k">if</span> <span class="o">(</span><span class="nx">f</span> <span class="o">&amp;&amp;</span> <span class="o">!</span><span class="nx">css</span><span class="o">[</span><span class="nx">floatAttr</span><span class="o">])</span> <span class="o">{</span>
       
   472         <span class="nx">css</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">merge</span><span class="o">(</span><span class="nx">css</span><span class="o">);</span>
       
   473         <span class="nx">delete</span> <span class="nx">css</span><span class="o">.</span><span class="nx">styleFloat</span><span class="o">;</span> <span class="nx">delete</span> <span class="nx">css</span><span class="o">.</span><span class="nx">cssFloat</span><span class="o">;</span> <span class="nx">delete</span> <span class="nx">css</span><span class="o">[</span><span class="nx">FLOAT</span><span class="o">];</span>
       
   474         <span class="nx">css</span><span class="o">[</span><span class="nx">floatAttr</span><span class="o">]</span> <span class="o">=</span> <span class="nx">f</span><span class="o">;</span>
       
   475     <span class="o">}</span>
       
   476 
       
   477     <span class="k">for</span> <span class="o">(</span><span class="nx">prop</span> <span class="k">in</span> <span class="nx">css</span><span class="o">)</span> <span class="o">{</span>
       
   478         <span class="k">if</span> <span class="o">(</span><span class="nx">css</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">prop</span><span class="o">))</span> <span class="o">{</span>
       
   479             <span class="k">try</span> <span class="o">{</span>
       
   480                 <span class="c">// IE throws Invalid Value errors and doesn&#39;t like whitespace</span>
       
   481 <span class="c"></span>                <span class="c">// in values ala &#39; red&#39; or &#39;red &#39;</span>
       
   482 <span class="c"></span>                <span class="nx">workerStyle</span><span class="o">[</span><span class="nx">prop</span><span class="o">]</span> <span class="o">=</span> <span class="nx">trim</span><span class="o">(</span><span class="nx">css</span><span class="o">[</span><span class="nx">prop</span><span class="o">]);</span>
       
   483             <span class="o">}</span>
       
   484             <span class="k">catch</span> <span class="o">(</span><span class="nx">e</span><span class="o">)</span> <span class="o">{</span>
       
   485                 <span class="nx">Y</span><span class="o">.</span><span class="nx">log</span><span class="o">(</span><span class="s1">&#39;Error assigning property &quot;&#39;</span><span class="o">+</span><span class="nx">prop</span><span class="o">+</span><span class="s1">&#39;&quot; to &quot;&#39;</span><span class="o">+</span><span class="nx">css</span><span class="o">[</span><span class="nx">prop</span><span class="o">]+</span>
       
   486                           <span class="s2">&quot;\&quot; (ignored):\n&quot;</span><span class="o">+</span><span class="nx">e</span><span class="o">.</span><span class="nx">message</span><span class="o">,</span><span class="s1">&#39;warn&#39;</span><span class="o">,</span><span class="s1">&#39;StyleSheet&#39;</span><span class="o">);</span>
       
   487             <span class="o">}</span>
       
   488         <span class="o">}</span>
       
   489     <span class="o">}</span>
       
   490     <span class="k">return</span> <span class="nx">workerStyle</span><span class="o">.</span><span class="nx">cssText</span><span class="o">;</span>
       
   491 <span class="o">};</span>
       
   492 
       
   493 <span class="nx">Y</span><span class="o">.</span><span class="nx">mix</span><span class="o">(</span><span class="nx">StyleSheet</span><span class="o">,</span> <span class="o">{</span>
       
   494     <span class="c">/**</span>
       
   495 <span class="c">     * &lt;p&gt;Converts an object literal of style properties and values into a string</span>
       
   496 <span class="c">     * of css text.  This can then be assigned to el.style.cssText.&lt;/p&gt;</span>
       
   497 <span class="c">     *</span>
       
   498 <span class="c">     * &lt;p&gt;The optional second parameter is a cssText string representing the</span>
       
   499 <span class="c">     * starting state of the style prior to alterations.  This is most often</span>
       
   500 <span class="c">     * extracted from the eventual target&#39;s current el.style.cssText.&lt;/p&gt;</span>
       
   501 <span class="c">     *</span>
       
   502 <span class="c">     * @method StyleSheet.toCssText</span>
       
   503 <span class="c">     * @param css {Object} object literal of style properties and values</span>
       
   504 <span class="c">     * @param cssText {String} (optional) starting cssText value</span>
       
   505 <span class="c">     * @return {String} the resulting cssText string</span>
       
   506 <span class="c">     * @static</span>
       
   507 <span class="c">     */</span>
       
   508     <span class="nx">toCssText</span> <span class="o">:</span> <span class="o">((</span><span class="nx">OPACITY</span> <span class="k">in</span> <span class="nx">workerStyle</span><span class="o">)</span> <span class="o">?</span> <span class="nx">_toCssText</span> <span class="o">:</span>
       
   509         <span class="c">// Wrap IE&#39;s toCssText to catch opacity.  The copy/merge is to preserve</span>
       
   510 <span class="c"></span>        <span class="c">// the input object&#39;s integrity, but if float and opacity are set, the</span>
       
   511 <span class="c"></span>        <span class="c">// input will be copied twice in IE.  Is there a way to avoid this</span>
       
   512 <span class="c"></span>        <span class="c">// without increasing the byte count?</span>
       
   513 <span class="c"></span>        <span class="k">function</span> <span class="o">(</span><span class="nx">css</span><span class="o">,</span> <span class="nx">cssText</span><span class="o">)</span> <span class="o">{</span>
       
   514             <span class="k">if</span> <span class="o">(</span><span class="nx">OPACITY</span> <span class="k">in</span> <span class="nx">css</span><span class="o">)</span> <span class="o">{</span>
       
   515                 <span class="nx">css</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">merge</span><span class="o">(</span><span class="nx">css</span><span class="o">,{</span>
       
   516                         <span class="nx">filter</span><span class="o">:</span> <span class="s1">&#39;alpha(opacity=&#39;</span><span class="o">+(</span><span class="nx">css</span><span class="o">.</span><span class="nx">opacity</span><span class="o">*</span><span class="m">100</span><span class="o">)+</span><span class="s1">&#39;)&#39;</span>
       
   517                       <span class="o">});</span>
       
   518                 <span class="nx">delete</span> <span class="nx">css</span><span class="o">.</span><span class="nx">opacity</span><span class="o">;</span>
       
   519             <span class="o">}</span>
       
   520             <span class="k">return</span> <span class="nx">_toCssText</span><span class="o">(</span><span class="nx">css</span><span class="o">,</span><span class="nx">cssText</span><span class="o">);</span>
       
   521         <span class="o">}),</span>
       
   522 
       
   523     <span class="c">/**</span>
       
   524 <span class="c">     * Registers a StyleSheet instance in the static registry by the given name</span>
       
   525 <span class="c">     *</span>
       
   526 <span class="c">     * @method StyleSheet.register</span>
       
   527 <span class="c">     * @param name {String} the name to assign the StyleSheet in the registry</span>
       
   528 <span class="c">     * @param sheet {StyleSheet} The StyleSheet instance</span>
       
   529 <span class="c">     * @return {Boolean} false if no name or sheet is not a StyleSheet</span>
       
   530 <span class="c">     *              instance. true otherwise.</span>
       
   531 <span class="c">     * @static</span>
       
   532 <span class="c">     */</span>
       
   533     <span class="nx">register</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">name</span><span class="o">,</span><span class="nx">sheet</span><span class="o">)</span> <span class="o">{</span>
       
   534         <span class="k">return</span> <span class="o">!!(</span><span class="nx">name</span> <span class="o">&amp;&amp;</span> <span class="nx">sheet</span> <span class="k">instanceof</span> <span class="nx">StyleSheet</span> <span class="o">&amp;&amp;</span>
       
   535                   <span class="o">!</span><span class="nx">sheets</span><span class="o">[</span><span class="nx">name</span><span class="o">]</span> <span class="o">&amp;&amp;</span> <span class="o">(</span><span class="nx">sheets</span><span class="o">[</span><span class="nx">name</span><span class="o">]</span> <span class="o">=</span> <span class="nx">sheet</span><span class="o">));</span>
       
   536     <span class="o">},</span>
       
   537 
       
   538     <span class="c">/**</span>
       
   539 <span class="c">     * &lt;p&gt;Determines if a selector string is safe to use.  Used internally</span>
       
   540 <span class="c">     * in set to prevent IE from locking up when attempting to add a rule for a</span>
       
   541 <span class="c">     * &amp;quot;bad selector&amp;quot;.&lt;/p&gt;</span>
       
   542 <span class="c">     *</span>
       
   543 <span class="c">     * &lt;p&gt;Bad selectors are considered to be any string containing unescaped</span>
       
   544 <span class="c">     * `~!@$%^&amp;()+=|{}[];&#39;&quot;?&lt; or space. Also forbidden are . or # followed by</span>
       
   545 <span class="c">     * anything other than an alphanumeric.  Additionally -abc or .-abc or</span>
       
   546 <span class="c">     * #_abc or &#39;# &#39; all fail.  There are likely more failure cases, so</span>
       
   547 <span class="c">     * please file a bug if you encounter one.&lt;/p&gt;</span>
       
   548 <span class="c">     *</span>
       
   549 <span class="c">     * @method StyleSheet.isValidSelector</span>
       
   550 <span class="c">     * @param sel {String} the selector string</span>
       
   551 <span class="c">     * @return {Boolean}</span>
       
   552 <span class="c">     * @static</span>
       
   553 <span class="c">     */</span>
       
   554     <span class="nx">isValidSelector</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">sel</span><span class="o">)</span> <span class="o">{</span>
       
   555         <span class="k">var</span> <span class="nx">valid</span> <span class="o">=</span> <span class="kc">false</span><span class="o">;</span>
       
   556 
       
   557         <span class="k">if</span> <span class="o">(</span><span class="nx">sel</span> <span class="o">&amp;&amp;</span> <span class="nx">isString</span><span class="o">(</span><span class="nx">sel</span><span class="o">))</span> <span class="o">{</span>
       
   558 
       
   559             <span class="k">if</span> <span class="o">(!</span><span class="nx">selectors</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">sel</span><span class="o">))</span> <span class="o">{</span>
       
   560                 <span class="c">// TEST: there should be nothing but white-space left after</span>
       
   561 <span class="c"></span>                <span class="c">// these destructive regexs</span>
       
   562 <span class="c"></span>                <span class="nx">selectors</span><span class="o">[</span><span class="nx">sel</span><span class="o">]</span> <span class="o">=</span> <span class="o">!</span><span class="sr">/\S/</span><span class="o">.</span><span class="nx">test</span><span class="o">(</span>
       
   563                     <span class="c">// combinators</span>
       
   564 <span class="c"></span>                    <span class="nx">sel</span><span class="o">.</span><span class="nx">replace</span><span class="o">(</span><span class="sr">/\s+|\s*[+~&gt;]\s*/g</span><span class="o">,</span><span class="s1">&#39; &#39;</span><span class="o">).</span>
       
   565                     <span class="c">// attribute selectors (contents not validated)</span>
       
   566 <span class="c"></span>                    <span class="nx">replace</span><span class="o">(</span><span class="sr">/([^ ])\[.*?\]/g</span><span class="o">,</span><span class="s1">&#39;$1&#39;</span><span class="o">).</span>
       
   567                     <span class="c">// pseudo-class|element selectors (contents of parens</span>
       
   568 <span class="c"></span>                    <span class="c">// such as :nth-of-type(2) or :not(...) not validated)</span>
       
   569 <span class="c"></span>                    <span class="nx">replace</span><span class="o">(</span><span class="sr">/([^ ])::?[a-z][a-z\-]+[a-z](?:\(.*?\))?/ig</span><span class="o">,</span><span class="s1">&#39;$1&#39;</span><span class="o">).</span>
       
   570                     <span class="c">// element tags</span>
       
   571 <span class="c"></span>                    <span class="nx">replace</span><span class="o">(</span><span class="sr">/(?:^| )[a-z0-6]+/ig</span><span class="o">,</span><span class="s1">&#39; &#39;</span><span class="o">).</span>
       
   572                     <span class="c">// escaped characters</span>
       
   573 <span class="c"></span>                    <span class="nx">replace</span><span class="o">(</span><span class="sr">/\\./g</span><span class="o">,</span><span class="nx">EMPTY</span><span class="o">).</span>
       
   574                     <span class="c">// class and id identifiers</span>
       
   575 <span class="c"></span>                    <span class="nx">replace</span><span class="o">(</span><span class="sr">/[.#]\w[\w\-]*/g</span><span class="o">,</span><span class="nx">EMPTY</span><span class="o">));</span>
       
   576             <span class="o">}</span>
       
   577 
       
   578             <span class="nx">valid</span> <span class="o">=</span> <span class="nx">selectors</span><span class="o">[</span><span class="nx">sel</span><span class="o">];</span>
       
   579         <span class="o">}</span>
       
   580 
       
   581         <span class="k">return</span> <span class="nx">valid</span><span class="o">;</span>
       
   582     <span class="o">}</span>
       
   583 <span class="o">},</span><span class="kc">true</span><span class="o">);</span>
       
   584 
       
   585 <span class="nx">Y</span><span class="o">.</span><span class="nx">StyleSheet</span> <span class="o">=</span> <span class="nx">StyleSheet</span><span class="o">;</span>
       
   586 
       
   587 <span class="c">/*</span>
       
   588 <span class="c"></span>
       
   589 <span class="c">NOTES</span>
       
   590 <span class="c"> * Style node must be added to the head element.  Safari does not honor styles</span>
       
   591 <span class="c">   applied to StyleSheet objects on style nodes in the body.</span>
       
   592 <span class="c"> * StyleSheet object is created on the style node when the style node is added</span>
       
   593 <span class="c">   to the head element in Firefox 2 (and maybe 3?)</span>
       
   594 <span class="c"> * The cssRules collection is replaced after insertRule/deleteRule calls in</span>
       
   595 <span class="c">   Safari 3.1.  Existing Rules are used in the new collection, so the collection</span>
       
   596 <span class="c">   cannot be cached, but the rules can be.</span>
       
   597 <span class="c"> * Opera requires that the index be passed with insertRule.</span>
       
   598 <span class="c"> * Same-domain restrictions prevent modifying StyleSheet objects attached to</span>
       
   599 <span class="c">   link elements with remote href (or &quot;about:blank&quot; or &quot;javascript:false&quot;)</span>
       
   600 <span class="c"> * Same-domain restrictions prevent reading StyleSheet cssRules/rules</span>
       
   601 <span class="c">   collection of link elements with remote href (or &quot;about:blank&quot; or</span>
       
   602 <span class="c">   &quot;javascript:false&quot;)</span>
       
   603 <span class="c"> * Same-domain restrictions result in Safari not populating node.sheet property</span>
       
   604 <span class="c">   for link elements with remote href (et.al)</span>
       
   605 <span class="c"> * IE names StyleSheet related properties and methods differently (see code)</span>
       
   606 <span class="c"> * IE converts tag names to upper case in the Rule&#39;s selectorText</span>
       
   607 <span class="c"> * IE converts empty string assignment to complex properties to value settings</span>
       
   608 <span class="c">   for all child properties.  E.g. style.background = &#39;&#39; sets non-&#39;&#39; values on</span>
       
   609 <span class="c">   style.backgroundPosition, style.backgroundColor, etc.  All else clear</span>
       
   610 <span class="c">   style.background and all child properties.</span>
       
   611 <span class="c"> * IE assignment style.filter = &#39;&#39; will result in style.cssText == &#39;FILTER:&#39;</span>
       
   612 <span class="c"> * All browsers support Rule.style.cssText as a read/write property, leaving</span>
       
   613 <span class="c">   only opacity needing to be accounted for.</span>
       
   614 <span class="c"> * Benchmarks of style.property = value vs style.cssText += &#39;property: value&#39;</span>
       
   615 <span class="c">   indicate cssText is slightly slower for single property assignment.  For</span>
       
   616 <span class="c">   multiple property assignment, cssText speed stays relatively the same where</span>
       
   617 <span class="c">   style.property speed decreases linearly by the number of properties set.</span>
       
   618 <span class="c">   Exception being Opera 9.27, where style.property is always faster than</span>
       
   619 <span class="c">   style.cssText.</span>
       
   620 <span class="c"> * Opera 9.5b throws a syntax error when assigning cssText with a syntax error.</span>
       
   621 <span class="c"> * Opera 9.5 doesn&#39;t honor rule.style.cssText = &#39;&#39;.  Previous style persists.</span>
       
   622 <span class="c">   You have to remove the rule altogether.</span>
       
   623 <span class="c"> * Stylesheet properties set with !important will trump inline style set on an</span>
       
   624 <span class="c">   element or in el.style.property.</span>
       
   625 <span class="c"> * Creating a worker style collection like document.createElement(&#39;p&#39;).style;</span>
       
   626 <span class="c">   will fail after a time in FF (~5secs of inactivity).  Property assignments</span>
       
   627 <span class="c">   will not alter the property or cssText.  It may be the generated node is</span>
       
   628 <span class="c">   garbage collected and the style collection becomes inert (speculation).</span>
       
   629 <span class="c"> * IE locks up when attempting to add a rule with a selector including at least</span>
       
   630 <span class="c">   characters {[]}~`!@%^&amp;*()+=|? (unescaped) and leading _ or -</span>
       
   631 <span class="c">   such as addRule(&#39;-foo&#39;,&#39;{ color: red }&#39;) or addRule(&#39;._abc&#39;,&#39;{...}&#39;)</span>
       
   632 <span class="c"> * IE&#39;s addRule doesn&#39;t support comma separated selectors such as</span>
       
   633 <span class="c">   addRule(&#39;.foo, .bar&#39;,&#39;{..}&#39;)</span>
       
   634 <span class="c"> * IE throws an error on valid values with leading/trailing white space.</span>
       
   635 <span class="c"> * When creating an entire sheet at once, only FF2/3 &amp; Opera allow creating a</span>
       
   636 <span class="c">   style node, setting its innerHTML and appending to head.</span>
       
   637 <span class="c"> * When creating an entire sheet at once, Safari requires the style node to be</span>
       
   638 <span class="c">   created with content in innerHTML of another element.</span>
       
   639 <span class="c"> * When creating an entire sheet at once, IE requires the style node content to</span>
       
   640 <span class="c">   be set via node.styleSheet.cssText</span>
       
   641 <span class="c"> * When creating an entire sheet at once in IE, styleSheet.cssText can&#39;t be</span>
       
   642 <span class="c">   written until node.type = &#39;text/css&#39;; is performed.</span>
       
   643 <span class="c"> * When creating an entire sheet at once in IE, load-time fork on</span>
       
   644 <span class="c">   var styleNode = d.createElement(&#39;style&#39;); _method = styleNode.styleSheet ?..</span>
       
   645 <span class="c">   fails (falsey).  During run-time, the test for .styleSheet works fine</span>
       
   646 <span class="c"> * Setting complex properties in cssText will SOMETIMES allow child properties</span>
       
   647 <span class="c">   to be unset</span>
       
   648 <span class="c">   set         unset              FF2  FF3  S3.1  IE6  IE7  Op9.27  Op9.5</span>
       
   649 <span class="c">   ----------  -----------------  ---  ---  ----  ---  ---  ------  -----</span>
       
   650 <span class="c">   border      -top               NO   NO   YES   YES  YES  YES     YES</span>
       
   651 <span class="c">               -top-color         NO   NO   YES             YES     YES</span>
       
   652 <span class="c">               -color             NO   NO   NO              NO      NO</span>
       
   653 <span class="c">   background  -color             NO   NO   YES             YES     YES</span>
       
   654 <span class="c">               -position          NO   NO   YES             YES     YES</span>
       
   655 <span class="c">               -position-x        NO   NO   NO              NO      NO</span>
       
   656 <span class="c">   font        line-height        YES  YES  NO    NO   NO   NO      YES</span>
       
   657 <span class="c">               -style             YES  YES  NO              YES     YES</span>
       
   658 <span class="c">               -size              YES  YES  NO              YES     YES</span>
       
   659 <span class="c">               -size-adjust       ???  ???  n/a   n/a  n/a  ???     ???</span>
       
   660 <span class="c">   padding     -top               NO   NO   YES             YES     YES</span>
       
   661 <span class="c">   margin      -top               NO   NO   YES             YES     YES</span>
       
   662 <span class="c">   list-style  -type              YES  YES  YES             YES     YES</span>
       
   663 <span class="c">               -position          YES  YES  YES             YES     YES</span>
       
   664 <span class="c">   overflow    -x                 NO   NO   YES             n/a     YES</span>
       
   665 <span class="c"></span>
       
   666 <span class="c">   ??? - unsetting font-size-adjust has the same effect as unsetting font-size</span>
       
   667 <span class="c"> * FireFox and WebKit populate rule.cssText as &quot;SELECTOR { CSSTEXT }&quot;, but</span>
       
   668 <span class="c">   Opera and IE do not.</span>
       
   669 <span class="c"> * IE6 and IE7 silently ignore the { and } if passed into addRule(&#39;.foo&#39;,&#39;{</span>
       
   670 <span class="c">   color:#000}&#39;,0).  IE8 does not and creates an empty rule.</span>
       
   671 <span class="c"> * IE6-8 addRule(&#39;.foo&#39;,&#39;&#39;,n) throws an error.  Must supply *some* cssText</span>
       
   672 <span class="c">*/</span>
       
   673 </pre></div>
       
   674 
       
   675                     </div>
       
   676 			</div>
       
   677 		</div>
       
   678 		<div class="yui-b">
       
   679             <div class="nav">
       
   680 
       
   681                     <div id="moduleList" class="module">
       
   682                         <h4>Modules</h4>
       
   683                         <ul class="content">
       
   684                                 <li class=""><a href="module_anim.html" title="anim">anim</a></li>
       
   685                                 <li class=""><a href="module_async-queue.html" title="async-queue">async-queue</a></li>
       
   686                                 <li class=""><a href="module_attribute.html" title="attribute">attribute</a></li>
       
   687                                 <li class=""><a href="module_base.html" title="base">base</a></li>
       
   688                                 <li class=""><a href="module_cache.html" title="cache">cache</a></li>
       
   689                                 <li class=""><a href="module_classnamemanager.html" title="classnamemanager">classnamemanager</a></li>
       
   690                                 <li class=""><a href="module_collection.html" title="collection">collection</a></li>
       
   691                                 <li class=""><a href="module_console.html" title="console">console</a></li>
       
   692                                 <li class=""><a href="module_console-filters.html" title="console-filters">console-filters</a></li>
       
   693                                 <li class=""><a href="module_cookie.html" title="cookie">cookie</a></li>
       
   694                                 <li class=""><a href="module_dataschema.html" title="dataschema">dataschema</a></li>
       
   695                                 <li class=""><a href="module_datasource.html" title="datasource">datasource</a></li>
       
   696                                 <li class=""><a href="module_datatype.html" title="datatype">datatype</a></li>
       
   697                                 <li class=""><a href="module_dd.html" title="dd">dd</a></li>
       
   698                                 <li class=""><a href="module_dom.html" title="dom">dom</a></li>
       
   699                                 <li class=""><a href="module_dump.html" title="dump">dump</a></li>
       
   700                                 <li class=""><a href="module_event.html" title="event">event</a></li>
       
   701                                 <li class=""><a href="module_event-custom.html" title="event-custom">event-custom</a></li>
       
   702                                 <li class=""><a href="module_event-simulate.html" title="event-simulate">event-simulate</a></li>
       
   703                                 <li class=""><a href="module_history.html" title="history">history</a></li>
       
   704                                 <li class=""><a href="module_imageloader.html" title="imageloader">imageloader</a></li>
       
   705                                 <li class=""><a href="module_io.html" title="io">io</a></li>
       
   706                                 <li class=""><a href="module_json.html" title="json">json</a></li>
       
   707                                 <li class=""><a href="module_node.html" title="node">node</a></li>
       
   708                                 <li class=""><a href="module_node-focusmanager.html" title="node-focusmanager">node-focusmanager</a></li>
       
   709                                 <li class=""><a href="module_node-menunav.html" title="node-menunav">node-menunav</a></li>
       
   710                                 <li class=""><a href="module_oop.html" title="oop">oop</a></li>
       
   711                                 <li class=""><a href="module_overlay.html" title="overlay">overlay</a></li>
       
   712                                 <li class=""><a href="module_plugin.html" title="plugin">plugin</a></li>
       
   713                                 <li class=""><a href="module_profiler.html" title="profiler">profiler</a></li>
       
   714                                 <li class=""><a href="module_queue-promote.html" title="queue-promote">queue-promote</a></li>
       
   715                                 <li class=""><a href="module_slider.html" title="slider">slider</a></li>
       
   716                                 <li class="selected"><a href="module_stylesheet.html" title="stylesheet">stylesheet</a></li>
       
   717                                 <li class=""><a href="module_substitute.html" title="substitute">substitute</a></li>
       
   718                                 <li class=""><a href="module_test.html" title="test">test</a></li>
       
   719                                 <li class=""><a href="module_widget.html" title="widget">widget</a></li>
       
   720                                 <li class=""><a href="module_widget-position.html" title="widget-position">widget-position</a></li>
       
   721                                 <li class=""><a href="module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a></li>
       
   722                                 <li class=""><a href="module_widget-stack.html" title="widget-stack">widget-stack</a></li>
       
   723                                 <li class=""><a href="module_widget-stdmod.html" title="widget-stdmod">widget-stdmod</a></li>
       
   724                                 <li class=""><a href="module_yui.html" title="yui">yui</a></li>
       
   725                         </ul>
       
   726                     </div>
       
   727 
       
   728                     <div id="classList" class="module">
       
   729                         <h4>Classes</h4>
       
   730                         <ul class="content">
       
   731                                 <li class=""><a href="StyleSheet.html" title="StyleSheet">StyleSheet</a></li>
       
   732                         </ul>
       
   733                     </div>
       
   734 
       
   735                     <div id="fileList" class="module">
       
   736                         <h4>Files</h4>
       
   737                         <ul class="content">        
       
   738                                 <li class="selected"><a href="stylesheet.js.html" title="stylesheet.js">stylesheet.js</a></li>
       
   739                         </ul>
       
   740                     </div>
       
   741 
       
   742 
       
   743 
       
   744 
       
   745 
       
   746             </div>
       
   747 		</div>
       
   748 	</div>
       
   749 	<div id="ft">
       
   750         <hr />
       
   751         Copyright &copy; 2009 Yahoo! Inc. All rights reserved.
       
   752 	</div>
       
   753 </div>
       
   754 <script type="text/javascript">
       
   755     ALL_YUI_PROPS = [{"access": "", "host": "StyleSheet", "name": "disable", "url": "StyleSheet.html#method_disable", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "enable", "url": "StyleSheet.html#method_enable", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "getCssText", "url": "StyleSheet.html#method_getCssText", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "getId", "url": "StyleSheet.html#method_getId", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "isEnabled", "url": "StyleSheet.html#method_isEnabled", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "set", "url": "StyleSheet.html#method_set", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "StyleSheet.isValidSelector", "url": "StyleSheet.html#method_StyleSheet.isValidSelector", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "StyleSheet.register", "url": "StyleSheet.html#method_StyleSheet.register", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "StyleSheet.toCssText", "url": "StyleSheet.html#method_StyleSheet.toCssText", "type": "method"}, {"access": "", "host": "StyleSheet", "name": "unset", "url": "StyleSheet.html#method_unset", "type": "method"}];
       
   756 </script>
       
   757 </body>
       
   758 </html>