src/cm/media/js/lib/yui/yui3.0.0/api/Widget-Stack.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: widget-stack   Widget-Stack.js  (YUI Library)</title>
       
     6 
       
     7 	<link rel="stylesheet" type="text/css" href="assets/reset-fonts-grids-min.css" />
       
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    10     <script type="text/javascript" src="assets/api-js"></script>
       
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    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>widget-stack&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_widget-stack.html" title="widget-stack">widget-stack</a>
       
    22                 
       
    23                  &gt; Widget-Stack.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>
       
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    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"> * Provides stackable (z-index) support for Widgets through an extension.</span>
       
    52 <span class="c"> *</span>
       
    53 <span class="c"> * @module widget-stack</span>
       
    54 <span class="c"> */</span>
       
    55     <span class="k">var</span> <span class="nx">L</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Lang</span><span class="o">,</span>
       
    56         <span class="nx">UA</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">UA</span><span class="o">,</span>
       
    57         <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>
       
    58         <span class="nx">Widget</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Widget</span><span class="o">,</span>
       
    59 
       
    60         <span class="nx">ZINDEX</span> <span class="o">=</span> <span class="s2">&quot;zIndex&quot;</span><span class="o">,</span>
       
    61         <span class="nx">SHIM</span> <span class="o">=</span> <span class="s2">&quot;shim&quot;</span><span class="o">,</span>
       
    62         <span class="nx">VISIBLE</span> <span class="o">=</span> <span class="s2">&quot;visible&quot;</span><span class="o">,</span>
       
    63 
       
    64         <span class="nx">BOUNDING_BOX</span> <span class="o">=</span> <span class="s2">&quot;boundingBox&quot;</span><span class="o">,</span>
       
    65 
       
    66         <span class="nx">RENDER_UI</span> <span class="o">=</span> <span class="s2">&quot;renderUI&quot;</span><span class="o">,</span>
       
    67         <span class="nx">BIND_UI</span> <span class="o">=</span> <span class="s2">&quot;bindUI&quot;</span><span class="o">,</span>
       
    68         <span class="nx">SYNC_UI</span> <span class="o">=</span> <span class="s2">&quot;syncUI&quot;</span><span class="o">,</span>
       
    69 
       
    70         <span class="nx">OFFSET_WIDTH</span> <span class="o">=</span> <span class="s2">&quot;offsetWidth&quot;</span><span class="o">,</span>
       
    71         <span class="nx">OFFSET_HEIGHT</span> <span class="o">=</span> <span class="s2">&quot;offsetHeight&quot;</span><span class="o">,</span>
       
    72         <span class="nx">PARENT_NODE</span> <span class="o">=</span> <span class="s2">&quot;parentNode&quot;</span><span class="o">,</span>
       
    73         <span class="nx">FIRST_CHILD</span> <span class="o">=</span> <span class="s2">&quot;firstChild&quot;</span><span class="o">,</span>
       
    74         <span class="nx">OWNER_DOCUMENT</span> <span class="o">=</span> <span class="s2">&quot;ownerDocument&quot;</span><span class="o">,</span>
       
    75 
       
    76         <span class="nx">WIDTH</span> <span class="o">=</span> <span class="s2">&quot;width&quot;</span><span class="o">,</span>
       
    77         <span class="nx">HEIGHT</span> <span class="o">=</span> <span class="s2">&quot;height&quot;</span><span class="o">,</span>
       
    78         <span class="nx">PX</span> <span class="o">=</span> <span class="s2">&quot;px&quot;</span><span class="o">,</span>
       
    79 
       
    80         <span class="c">// HANDLE KEYS</span>
       
    81 <span class="c"></span>        <span class="nx">SHIM_DEFERRED</span> <span class="o">=</span> <span class="s2">&quot;shimdeferred&quot;</span><span class="o">,</span>
       
    82         <span class="nx">SHIM_RESIZE</span> <span class="o">=</span> <span class="s2">&quot;shimresize&quot;</span><span class="o">,</span>
       
    83 
       
    84         <span class="c">// Events</span>
       
    85 <span class="c"></span>        <span class="nx">VisibleChange</span> <span class="o">=</span> <span class="s2">&quot;visibleChange&quot;</span><span class="o">,</span>
       
    86         <span class="nx">WidthChange</span> <span class="o">=</span> <span class="s2">&quot;widthChange&quot;</span><span class="o">,</span>
       
    87         <span class="nx">HeightChange</span> <span class="o">=</span> <span class="s2">&quot;heightChange&quot;</span><span class="o">,</span>
       
    88         <span class="nx">ShimChange</span> <span class="o">=</span> <span class="s2">&quot;shimChange&quot;</span><span class="o">,</span>
       
    89         <span class="nx">ZIndexChange</span> <span class="o">=</span> <span class="s2">&quot;zIndexChange&quot;</span><span class="o">,</span>
       
    90         <span class="nx">ContentUpdate</span> <span class="o">=</span> <span class="s2">&quot;contentUpdate&quot;</span><span class="o">,</span>
       
    91 
       
    92         <span class="c">// CSS</span>
       
    93 <span class="c"></span>        <span class="nx">STACKED</span> <span class="o">=</span> <span class="s2">&quot;stacked&quot;</span><span class="o">;</span>
       
    94 
       
    95     <span class="c">/**</span>
       
    96 <span class="c">     * Widget extension, which can be used to add stackable (z-index) support to the </span>
       
    97 <span class="c">     * base Widget class along with a shimming solution, through the </span>
       
    98 <span class="c">     * &lt;a href=&quot;Base.html#method_build&quot;&gt;Base.build&lt;/a&gt; method.</span>
       
    99 <span class="c">     *</span>
       
   100 <span class="c">     * @class WidgetStack</span>
       
   101 <span class="c">     * @param {Object} User configuration object</span>
       
   102 <span class="c">     */</span>
       
   103     <span class="k">function</span> <span class="nx">Stack</span><span class="o">(</span><span class="nx">config</span><span class="o">)</span> <span class="o">{</span>
       
   104         <span class="k">this</span><span class="o">.</span><span class="nx">_stackNode</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">BOUNDING_BOX</span><span class="o">);</span>
       
   105         <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span> <span class="o">=</span> <span class="o">{};</span>
       
   106 
       
   107         <span class="c">// WIDGET METHOD OVERLAP</span>
       
   108 <span class="c"></span>        <span class="nx">Y</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">_renderUIStack</span><span class="o">,</span> <span class="k">this</span><span class="o">,</span> <span class="nx">RENDER_UI</span><span class="o">);</span>
       
   109         <span class="nx">Y</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">_syncUIStack</span><span class="o">,</span> <span class="k">this</span><span class="o">,</span> <span class="nx">SYNC_UI</span><span class="o">);</span>
       
   110         <span class="nx">Y</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">_bindUIStack</span><span class="o">,</span> <span class="k">this</span><span class="o">,</span> <span class="nx">BIND_UI</span><span class="o">);</span>
       
   111     <span class="o">}</span>
       
   112 
       
   113     <span class="c">// Static Properties</span>
       
   114 <span class="c"></span>    <span class="c">/**</span>
       
   115 <span class="c">     * Static property used to define the default attribute </span>
       
   116 <span class="c">     * configuration introduced by WidgetStack.</span>
       
   117 <span class="c">     * </span>
       
   118 <span class="c">     * @property WidgetStack.ATTRS</span>
       
   119 <span class="c">     * @type Object</span>
       
   120 <span class="c">     * @static</span>
       
   121 <span class="c">     */</span>
       
   122     <span class="nx">Stack</span><span class="o">.</span><span class="nx">ATTRS</span> <span class="o">=</span> <span class="o">{</span>
       
   123         <span class="c">/**</span>
       
   124 <span class="c">         * @attribute shim</span>
       
   125 <span class="c">         * @type boolean</span>
       
   126 <span class="c">         * @default false, for all browsers other than IE6, for which a shim is enabled by default.</span>
       
   127 <span class="c">         * </span>
       
   128 <span class="c">         * @description Boolean flag to indicate whether or not a shim should be added to the Widgets</span>
       
   129 <span class="c">         * boundingBox, to protect it from select box bleedthrough.</span>
       
   130 <span class="c">         */</span>
       
   131         <span class="nx">shim</span><span class="o">:</span> <span class="o">{</span>
       
   132             <span class="nx">value</span><span class="o">:</span> <span class="o">(</span><span class="nx">UA</span><span class="o">.</span><span class="nx">ie</span> <span class="o">==</span> <span class="m">6</span><span class="o">)</span>
       
   133         <span class="o">},</span>
       
   134 
       
   135         <span class="c">/**</span>
       
   136 <span class="c">         * @attribute zIndex</span>
       
   137 <span class="c">         * @type number</span>
       
   138 <span class="c">         * @default 0</span>
       
   139 <span class="c">         * @description The z-index to apply to the Widgets boundingBox. Non-numerical values for </span>
       
   140 <span class="c">         * zIndex will be converted to 0</span>
       
   141 <span class="c">         */</span>
       
   142         <span class="nx">zIndex</span><span class="o">:</span> <span class="o">{</span>
       
   143             <span class="nx">value</span><span class="o">:</span><span class="m">0</span><span class="o">,</span>
       
   144             <span class="nx">setter</span><span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">val</span><span class="o">)</span> <span class="o">{</span>
       
   145                 <span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="nx">_setZIndex</span><span class="o">(</span><span class="nx">val</span><span class="o">);</span>
       
   146             <span class="o">}</span>
       
   147         <span class="o">}</span>
       
   148     <span class="o">};</span>
       
   149 
       
   150     <span class="c">/**</span>
       
   151 <span class="c">     * The HTML parsing rules for the WidgetStack class.</span>
       
   152 <span class="c">     * </span>
       
   153 <span class="c">     * @property WidgetStack.HTML_PARSER</span>
       
   154 <span class="c">     * @static</span>
       
   155 <span class="c">     * @type Object</span>
       
   156 <span class="c">     */</span>
       
   157     <span class="nx">Stack</span><span class="o">.</span><span class="nx">HTML_PARSER</span> <span class="o">=</span> <span class="o">{</span>
       
   158         <span class="nx">zIndex</span><span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">contentBox</span><span class="o">)</span> <span class="o">{</span>
       
   159             <span class="k">return</span> <span class="nx">contentBox</span><span class="o">.</span><span class="nx">getStyle</span><span class="o">(</span><span class="nx">ZINDEX</span><span class="o">);</span>
       
   160         <span class="o">}</span>
       
   161     <span class="o">};</span>
       
   162 
       
   163     <span class="c">/**</span>
       
   164 <span class="c">     * Default class used to mark the shim element</span>
       
   165 <span class="c">     *</span>
       
   166 <span class="c">     * @property WidgetStack.SHIM_CLASS_NAME</span>
       
   167 <span class="c">     * @type String</span>
       
   168 <span class="c">     * @static</span>
       
   169 <span class="c">     * @default &quot;yui-widget-shim&quot;</span>
       
   170 <span class="c">     */</span>
       
   171     <span class="nx">Stack</span><span class="o">.</span><span class="nx">SHIM_CLASS_NAME</span> <span class="o">=</span> <span class="nx">Widget</span><span class="o">.</span><span class="nx">getClassName</span><span class="o">(</span><span class="nx">SHIM</span><span class="o">);</span>
       
   172 
       
   173     <span class="c">/**</span>
       
   174 <span class="c">     * Default class used to mark the boundingBox of a stacked widget.</span>
       
   175 <span class="c">     * </span>
       
   176 <span class="c">     * @property WidgetStack.STACKED_CLASS_NAME</span>
       
   177 <span class="c">     * @type String</span>
       
   178 <span class="c">     * @static</span>
       
   179 <span class="c">     * @default &quot;yui-widget-stacked&quot;</span>
       
   180 <span class="c">     */</span>
       
   181     <span class="nx">Stack</span><span class="o">.</span><span class="nx">STACKED_CLASS_NAME</span> <span class="o">=</span> <span class="nx">Widget</span><span class="o">.</span><span class="nx">getClassName</span><span class="o">(</span><span class="nx">STACKED</span><span class="o">);</span>
       
   182 
       
   183     <span class="c">/**</span>
       
   184 <span class="c">     * Default markup template used to generate the shim element.</span>
       
   185 <span class="c">     * </span>
       
   186 <span class="c">     * @property WidgetStack.SHIM_TEMPLATE</span>
       
   187 <span class="c">     * @type String</span>
       
   188 <span class="c">     * @static</span>
       
   189 <span class="c">     */</span>
       
   190     <span class="nx">Stack</span><span class="o">.</span><span class="nx">SHIM_TEMPLATE</span> <span class="o">=</span> <span class="s1">&#39;&lt;iframe class=&quot;&#39;</span> <span class="o">+</span> <span class="nx">Stack</span><span class="o">.</span><span class="nx">SHIM_CLASS_NAME</span> <span class="o">+</span> <span class="s1">&#39;&quot; frameborder=&quot;0&quot; title=&quot;Widget Stacking Shim&quot; src=&quot;javascript:false&quot; tabindex=&quot;-1&quot; role=&quot;presentation&quot;&gt;&lt;/iframe&gt;&#39;</span><span class="o">;</span>
       
   191 
       
   192     <span class="nx">Stack</span><span class="o">.</span><span class="nx">prototype</span> <span class="o">=</span> <span class="o">{</span>
       
   193 
       
   194         <span class="c">/**</span>
       
   195 <span class="c">         * Synchronizes the UI to match the Widgets stack state. This method in </span>
       
   196 <span class="c">         * invoked after syncUI is invoked for the Widget class using YUI&#39;s aop infrastructure.</span>
       
   197 <span class="c">         *</span>
       
   198 <span class="c">         * @method _syncUIStack</span>
       
   199 <span class="c">         * @protected</span>
       
   200 <span class="c">         */</span>
       
   201         <span class="nx">_syncUIStack</span><span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   202             <span class="k">this</span><span class="o">.</span><span class="nx">_uiSetShim</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">SHIM</span><span class="o">));</span>
       
   203             <span class="k">this</span><span class="o">.</span><span class="nx">_uiSetZIndex</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">ZINDEX</span><span class="o">));</span>
       
   204         <span class="o">},</span>
       
   205 
       
   206         <span class="c">/**</span>
       
   207 <span class="c">         * Binds event listeners responsible for updating the UI state in response to </span>
       
   208 <span class="c">         * Widget stack related state changes.</span>
       
   209 <span class="c">         * &lt;p&gt;</span>
       
   210 <span class="c">         * This method is invoked after bindUI is invoked for the Widget class</span>
       
   211 <span class="c">         * using YUI&#39;s aop infrastructure.</span>
       
   212 <span class="c">         * &lt;/p&gt;</span>
       
   213 <span class="c">         * @method _bindUIStack</span>
       
   214 <span class="c">         * @protected</span>
       
   215 <span class="c">         */</span>
       
   216         <span class="nx">_bindUIStack</span><span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   217             <span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">ShimChange</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">_afterShimChange</span><span class="o">);</span>
       
   218             <span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">ZIndexChange</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">_afterZIndexChange</span><span class="o">);</span>
       
   219         <span class="o">},</span>
       
   220 
       
   221         <span class="c">/**</span>
       
   222 <span class="c">         * Creates/Initializes the DOM to support stackability.</span>
       
   223 <span class="c">         * &lt;p&gt;</span>
       
   224 <span class="c">         * This method in invoked after renderUI is invoked for the Widget class</span>
       
   225 <span class="c">         * using YUI&#39;s aop infrastructure.</span>
       
   226 <span class="c">         * &lt;/p&gt;</span>
       
   227 <span class="c">         * @method _renderUIStack</span>
       
   228 <span class="c">         * @protected</span>
       
   229 <span class="c">         */</span>
       
   230         <span class="nx">_renderUIStack</span><span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   231             <span class="k">this</span><span class="o">.</span><span class="nx">_stackNode</span><span class="o">.</span><span class="nx">addClass</span><span class="o">(</span><span class="nx">Stack</span><span class="o">.</span><span class="nx">STACKED_CLASS_NAME</span><span class="o">);</span>
       
   232         <span class="o">},</span>
       
   233 
       
   234         <span class="c">/**</span>
       
   235 <span class="c">         * Default setter for zIndex attribute changes. Normalizes zIndex values to </span>
       
   236 <span class="c">         * numbers, converting non-numerical values to 0.</span>
       
   237 <span class="c">         *</span>
       
   238 <span class="c">         * @method _setZIndex</span>
       
   239 <span class="c">         * @protected</span>
       
   240 <span class="c">         * @param {String | Number} zIndex</span>
       
   241 <span class="c">         * @return {Number} Normalized zIndex</span>
       
   242 <span class="c">         */</span>
       
   243         <span class="nx">_setZIndex</span><span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">zIndex</span><span class="o">)</span> <span class="o">{</span>
       
   244             <span class="k">if</span> <span class="o">(</span><span class="nx">L</span><span class="o">.</span><span class="nx">isString</span><span class="o">(</span><span class="nx">zIndex</span><span class="o">))</span> <span class="o">{</span>
       
   245                 <span class="nx">zIndex</span> <span class="o">=</span> <span class="nb">parseInt</span><span class="o">(</span><span class="nx">zIndex</span><span class="o">,</span> <span class="m">10</span><span class="o">);</span>
       
   246             <span class="o">}</span>
       
   247             <span class="k">if</span> <span class="o">(!</span><span class="nx">L</span><span class="o">.</span><span class="nx">isNumber</span><span class="o">(</span><span class="nx">zIndex</span><span class="o">))</span> <span class="o">{</span>
       
   248                 <span class="nx">zIndex</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   249             <span class="o">}</span>
       
   250             <span class="k">return</span> <span class="nx">zIndex</span><span class="o">;</span>
       
   251         <span class="o">},</span>
       
   252 
       
   253         <span class="c">/**</span>
       
   254 <span class="c">         * Default attribute change listener for the shim attribute, responsible</span>
       
   255 <span class="c">         * for updating the UI, in response to attribute changes.</span>
       
   256 <span class="c">         *</span>
       
   257 <span class="c">         * @method _afterShimChange</span>
       
   258 <span class="c">         * @protected</span>
       
   259 <span class="c">         * @param {EventFacade} e The event facade for the attribute change</span>
       
   260 <span class="c">         */</span>
       
   261         <span class="nx">_afterShimChange</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">e</span><span class="o">)</span> <span class="o">{</span>
       
   262             <span class="k">this</span><span class="o">.</span><span class="nx">_uiSetShim</span><span class="o">(</span><span class="nx">e</span><span class="o">.</span><span class="nx">newVal</span><span class="o">);</span>
       
   263         <span class="o">},</span>
       
   264 
       
   265         <span class="c">/**</span>
       
   266 <span class="c">         * Default attribute change listener for the zIndex attribute, responsible</span>
       
   267 <span class="c">         * for updating the UI, in response to attribute changes.</span>
       
   268 <span class="c">         * </span>
       
   269 <span class="c">         * @method _afterZIndexChange</span>
       
   270 <span class="c">         * @protected</span>
       
   271 <span class="c">         * @param {EventFacade} e The event facade for the attribute change</span>
       
   272 <span class="c">         */</span>
       
   273         <span class="nx">_afterZIndexChange</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">e</span><span class="o">)</span> <span class="o">{</span>
       
   274             <span class="k">this</span><span class="o">.</span><span class="nx">_uiSetZIndex</span><span class="o">(</span><span class="nx">e</span><span class="o">.</span><span class="nx">newVal</span><span class="o">);</span>
       
   275         <span class="o">},</span>
       
   276 
       
   277         <span class="c">/**</span>
       
   278 <span class="c">         * Updates the UI to reflect the zIndex value passed in.</span>
       
   279 <span class="c">         *</span>
       
   280 <span class="c">         * @method _uiSetZIndex</span>
       
   281 <span class="c">         * @protected</span>
       
   282 <span class="c">         * @param {number} zIndex The zindex to be reflected in the UI</span>
       
   283 <span class="c">         */</span>
       
   284         <span class="nx">_uiSetZIndex</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">zIndex</span><span class="o">)</span> <span class="o">{</span>
       
   285             <span class="k">this</span><span class="o">.</span><span class="nx">_stackNode</span><span class="o">.</span><span class="nx">setStyle</span><span class="o">(</span><span class="nx">ZINDEX</span><span class="o">,</span> <span class="nx">zIndex</span><span class="o">);</span>
       
   286         <span class="o">},</span>
       
   287 
       
   288         <span class="c">/**</span>
       
   289 <span class="c">         * Updates the UI to enable/disable the shim. If the widget is not currently visible,</span>
       
   290 <span class="c">         * creation of the shim is deferred until it is made visible, for performance reasons.</span>
       
   291 <span class="c">         *</span>
       
   292 <span class="c">         * @method _uiSetShim</span>
       
   293 <span class="c">         * @protected</span>
       
   294 <span class="c">         * @param {boolean} enable If true, creates/renders the shim, if false, removes it.</span>
       
   295 <span class="c">         */</span>
       
   296         <span class="nx">_uiSetShim</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">enable</span><span class="o">)</span> <span class="o">{</span>
       
   297             <span class="k">if</span> <span class="o">(</span><span class="nx">enable</span><span class="o">)</span> <span class="o">{</span>
       
   298                 <span class="c">// Lazy creation</span>
       
   299 <span class="c"></span>                <span class="k">if</span> <span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">VISIBLE</span><span class="o">))</span> <span class="o">{</span>
       
   300                     <span class="k">this</span><span class="o">.</span><span class="nx">_renderShim</span><span class="o">();</span>
       
   301                 <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   302                     <span class="k">this</span><span class="o">.</span><span class="nx">_renderShimDeferred</span><span class="o">();</span>
       
   303                 <span class="o">}</span>
       
   304             <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   305                 <span class="k">this</span><span class="o">.</span><span class="nx">_destroyShim</span><span class="o">();</span>
       
   306             <span class="o">}</span>
       
   307         <span class="o">},</span>
       
   308 
       
   309         <span class="c">/**</span>
       
   310 <span class="c">         * Sets up change handlers for the visible attribute, to defer shim creation/rendering </span>
       
   311 <span class="c">         * until the Widget is made visible.</span>
       
   312 <span class="c">         * </span>
       
   313 <span class="c">         * @method _renderShimDeferred</span>
       
   314 <span class="c">         * @private</span>
       
   315 <span class="c">         */</span>
       
   316         <span class="nx">_renderShimDeferred</span> <span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   317 
       
   318             <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span><span class="o">[</span><span class="nx">SHIM_DEFERRED</span><span class="o">]</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span><span class="o">[</span><span class="nx">SHIM_DEFERRED</span><span class="o">]</span> <span class="o">||</span> <span class="o">[];</span>
       
   319 
       
   320             <span class="k">var</span> <span class="nx">handles</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span><span class="o">[</span><span class="nx">SHIM_DEFERRED</span><span class="o">],</span>
       
   321                 <span class="nx">createBeforeVisible</span> <span class="o">=</span> <span class="k">function</span><span class="o">(</span><span class="nx">e</span><span class="o">)</span> <span class="o">{</span>
       
   322                     <span class="k">if</span> <span class="o">(</span><span class="nx">e</span><span class="o">.</span><span class="nx">newVal</span><span class="o">)</span> <span class="o">{</span>
       
   323                         <span class="k">this</span><span class="o">.</span><span class="nx">_renderShim</span><span class="o">();</span>
       
   324                     <span class="o">}</span>
       
   325                 <span class="o">};</span>
       
   326 
       
   327             <span class="nx">handles</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">on</span><span class="o">(</span><span class="nx">VisibleChange</span><span class="o">,</span> <span class="nx">createBeforeVisible</span><span class="o">));</span>
       
   328         <span class="o">},</span>
       
   329 
       
   330         <span class="c">/**</span>
       
   331 <span class="c">         * Sets up event listeners to resize the shim when the size of the Widget changes.</span>
       
   332 <span class="c">         * &lt;p&gt;</span>
       
   333 <span class="c">         * NOTE: This method is only used for IE6 currently, since IE6 doesn&#39;t support a way to</span>
       
   334 <span class="c">         * resize the shim purely through CSS, when the Widget does not have an explicit width/height </span>
       
   335 <span class="c">         * set.</span>
       
   336 <span class="c">         * &lt;/p&gt;</span>
       
   337 <span class="c">         * @method _addShimResizeHandlers</span>
       
   338 <span class="c">         * @private</span>
       
   339 <span class="c">         */</span>
       
   340         <span class="nx">_addShimResizeHandlers</span> <span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   341 
       
   342             <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span><span class="o">[</span><span class="nx">SHIM_RESIZE</span><span class="o">]</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span><span class="o">[</span><span class="nx">SHIM_RESIZE</span><span class="o">]</span> <span class="o">||</span> <span class="o">[];</span>
       
   343 
       
   344             <span class="k">var</span> <span class="nx">sizeShim</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">sizeShim</span><span class="o">,</span>
       
   345                 <span class="nx">handles</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span><span class="o">[</span><span class="nx">SHIM_RESIZE</span><span class="o">];</span>
       
   346 
       
   347             <span class="k">this</span><span class="o">.</span><span class="nx">sizeShim</span><span class="o">();</span>
       
   348 
       
   349             <span class="nx">handles</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">VisibleChange</span><span class="o">,</span> <span class="nx">sizeShim</span><span class="o">));</span>
       
   350             <span class="nx">handles</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">WidthChange</span><span class="o">,</span> <span class="nx">sizeShim</span><span class="o">));</span>
       
   351             <span class="nx">handles</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">HeightChange</span><span class="o">,</span> <span class="nx">sizeShim</span><span class="o">));</span>
       
   352             <span class="nx">handles</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">ContentUpdate</span><span class="o">,</span> <span class="nx">sizeShim</span><span class="o">));</span>
       
   353         <span class="o">},</span>
       
   354 
       
   355         <span class="c">/**</span>
       
   356 <span class="c">         * Detaches any handles stored for the provided key</span>
       
   357 <span class="c">         *</span>
       
   358 <span class="c">         * @method _detachStackHandles</span>
       
   359 <span class="c">         * @param String handleKey The key defining the group of handles which should be detached</span>
       
   360 <span class="c">         * @private</span>
       
   361 <span class="c">         */</span>
       
   362         <span class="nx">_detachStackHandles</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">handleKey</span><span class="o">)</span> <span class="o">{</span>
       
   363             <span class="k">var</span> <span class="nx">handles</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackHandles</span><span class="o">[</span><span class="nx">handleKey</span><span class="o">],</span>
       
   364                 <span class="nx">handle</span><span class="o">;</span>
       
   365 
       
   366             <span class="k">if</span> <span class="o">(</span><span class="nx">handles</span> <span class="o">&amp;&amp;</span> <span class="nx">handles</span><span class="o">.</span><span class="nx">length</span> <span class="o">&gt;</span> <span class="m">0</span><span class="o">)</span> <span class="o">{</span>
       
   367                 <span class="k">while</span><span class="o">((</span><span class="nx">handle</span> <span class="o">=</span> <span class="nx">handles</span><span class="o">.</span><span class="nx">pop</span><span class="o">()))</span> <span class="o">{</span>
       
   368                     <span class="nx">handle</span><span class="o">.</span><span class="nx">detach</span><span class="o">();</span>
       
   369                 <span class="o">}</span>
       
   370             <span class="o">}</span>
       
   371         <span class="o">},</span>
       
   372 
       
   373         <span class="c">/**</span>
       
   374 <span class="c">         * Creates the shim element and adds it to the DOM</span>
       
   375 <span class="c">         *</span>
       
   376 <span class="c">         * @method _renderShim</span>
       
   377 <span class="c">         * @private</span>
       
   378 <span class="c">         */</span>
       
   379         <span class="nx">_renderShim</span> <span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   380             <span class="k">var</span> <span class="nx">shimEl</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_shimNode</span><span class="o">,</span>
       
   381                 <span class="nx">stackEl</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackNode</span><span class="o">;</span>
       
   382 
       
   383             <span class="k">if</span> <span class="o">(!</span><span class="nx">shimEl</span><span class="o">)</span> <span class="o">{</span>
       
   384                 <span class="nx">shimEl</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_shimNode</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_getShimTemplate</span><span class="o">();</span>
       
   385                 <span class="nx">stackEl</span><span class="o">.</span><span class="nx">insertBefore</span><span class="o">(</span><span class="nx">shimEl</span><span class="o">,</span> <span class="nx">stackEl</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">FIRST_CHILD</span><span class="o">));</span>
       
   386 
       
   387                 <span class="k">if</span> <span class="o">(</span><span class="nx">UA</span><span class="o">.</span><span class="nx">ie</span> <span class="o">==</span> <span class="m">6</span><span class="o">)</span> <span class="o">{</span>
       
   388                     <span class="k">this</span><span class="o">.</span><span class="nx">_addShimResizeHandlers</span><span class="o">();</span>
       
   389                 <span class="o">}</span>
       
   390                 <span class="k">this</span><span class="o">.</span><span class="nx">_detachStackHandles</span><span class="o">(</span><span class="nx">SHIM_DEFERRED</span><span class="o">);</span>
       
   391             <span class="o">}</span>
       
   392         <span class="o">},</span>
       
   393 
       
   394         <span class="c">/**</span>
       
   395 <span class="c">         * Removes the shim from the DOM, and detaches any related event</span>
       
   396 <span class="c">         * listeners.</span>
       
   397 <span class="c">         *</span>
       
   398 <span class="c">         * @method _destroyShim</span>
       
   399 <span class="c">         * @private</span>
       
   400 <span class="c">         */</span>
       
   401         <span class="nx">_destroyShim</span> <span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   402             <span class="k">if</span> <span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">_shimNode</span><span class="o">)</span> <span class="o">{</span>
       
   403                 <span class="k">this</span><span class="o">.</span><span class="nx">_shimNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">PARENT_NODE</span><span class="o">).</span><span class="nx">removeChild</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">_shimNode</span><span class="o">);</span>
       
   404                 <span class="k">this</span><span class="o">.</span><span class="nx">_shimNode</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span>
       
   405 
       
   406                 <span class="k">this</span><span class="o">.</span><span class="nx">_detachStackHandles</span><span class="o">(</span><span class="nx">SHIM_DEFERRED</span><span class="o">);</span>
       
   407                 <span class="k">this</span><span class="o">.</span><span class="nx">_detachStackHandles</span><span class="o">(</span><span class="nx">SHIM_RESIZE</span><span class="o">);</span>
       
   408             <span class="o">}</span>
       
   409         <span class="o">},</span>
       
   410 
       
   411         <span class="c">/**</span>
       
   412 <span class="c">         * For IE6, synchronizes the size and position of iframe shim to that of </span>
       
   413 <span class="c">         * Widget bounding box which it is protecting. For all other browsers,</span>
       
   414 <span class="c">         * this method does not do anything.</span>
       
   415 <span class="c">         *</span>
       
   416 <span class="c">         * @method sizeShim</span>
       
   417 <span class="c">         */</span>
       
   418         <span class="nx">sizeShim</span><span class="o">:</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span>
       
   419             <span class="k">var</span> <span class="nx">shim</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_shimNode</span><span class="o">,</span>
       
   420                 <span class="nx">node</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackNode</span><span class="o">;</span>
       
   421 
       
   422             <span class="k">if</span> <span class="o">(</span><span class="nx">shim</span> <span class="o">&amp;&amp;</span> <span class="nx">UA</span><span class="o">.</span><span class="nx">ie</span> <span class="o">===</span> <span class="m">6</span> <span class="o">&amp;&amp;</span> <span class="k">this</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">VISIBLE</span><span class="o">))</span> <span class="o">{</span>
       
   423                 <span class="nx">shim</span><span class="o">.</span><span class="nx">setStyle</span><span class="o">(</span><span class="nx">WIDTH</span><span class="o">,</span> <span class="nx">node</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_WIDTH</span><span class="o">)</span> <span class="o">+</span> <span class="nx">PX</span><span class="o">);</span>
       
   424                 <span class="nx">shim</span><span class="o">.</span><span class="nx">setStyle</span><span class="o">(</span><span class="nx">HEIGHT</span><span class="o">,</span> <span class="nx">node</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OFFSET_HEIGHT</span><span class="o">)</span> <span class="o">+</span> <span class="nx">PX</span><span class="o">);</span>
       
   425             <span class="o">}</span>
       
   426         <span class="o">},</span>
       
   427 
       
   428         <span class="c">/**</span>
       
   429 <span class="c">         * Creates a cloned shim node, using the SHIM_TEMPLATE html template, for use on a new instance.</span>
       
   430 <span class="c">         *</span>
       
   431 <span class="c">         * @method _getShimTemplate</span>
       
   432 <span class="c">         * @private</span>
       
   433 <span class="c">         * @return {Node} node A new shim Node instance.</span>
       
   434 <span class="c">         */</span>
       
   435         <span class="nx">_getShimTemplate</span> <span class="o">:</span> <span class="k">function</span><span class="o">()</span> <span class="o">{</span>
       
   436             <span class="k">return</span> <span class="nx">Node</span><span class="o">.</span><span class="nx">create</span><span class="o">(</span><span class="nx">Stack</span><span class="o">.</span><span class="nx">SHIM_TEMPLATE</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">_stackNode</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">OWNER_DOCUMENT</span><span class="o">));</span>
       
   437         <span class="o">}</span>
       
   438     <span class="o">};</span>
       
   439 
       
   440     <span class="nx">Y</span><span class="o">.</span><span class="nx">WidgetStack</span> <span class="o">=</span> <span class="nx">Stack</span><span class="o">;</span>
       
   441 </pre></div>
       
   442 
       
   443                     </div>
       
   444 			</div>
       
   445 		</div>
       
   446 		<div class="yui-b">
       
   447             <div class="nav">
       
   448 
       
   449                     <div id="moduleList" class="module">
       
   450                         <h4>Modules</h4>
       
   451                         <ul class="content">
       
   452                                 <li class=""><a href="module_anim.html" title="anim">anim</a></li>
       
   453                                 <li class=""><a href="module_async-queue.html" title="async-queue">async-queue</a></li>
       
   454                                 <li class=""><a href="module_attribute.html" title="attribute">attribute</a></li>
       
   455                                 <li class=""><a href="module_base.html" title="base">base</a></li>
       
   456                                 <li class=""><a href="module_cache.html" title="cache">cache</a></li>
       
   457                                 <li class=""><a href="module_classnamemanager.html" title="classnamemanager">classnamemanager</a></li>
       
   458                                 <li class=""><a href="module_collection.html" title="collection">collection</a></li>
       
   459                                 <li class=""><a href="module_console.html" title="console">console</a></li>
       
   460                                 <li class=""><a href="module_console-filters.html" title="console-filters">console-filters</a></li>
       
   461                                 <li class=""><a href="module_cookie.html" title="cookie">cookie</a></li>
       
   462                                 <li class=""><a href="module_dataschema.html" title="dataschema">dataschema</a></li>
       
   463                                 <li class=""><a href="module_datasource.html" title="datasource">datasource</a></li>
       
   464                                 <li class=""><a href="module_datatype.html" title="datatype">datatype</a></li>
       
   465                                 <li class=""><a href="module_dd.html" title="dd">dd</a></li>
       
   466                                 <li class=""><a href="module_dom.html" title="dom">dom</a></li>
       
   467                                 <li class=""><a href="module_dump.html" title="dump">dump</a></li>
       
   468                                 <li class=""><a href="module_event.html" title="event">event</a></li>
       
   469                                 <li class=""><a href="module_event-custom.html" title="event-custom">event-custom</a></li>
       
   470                                 <li class=""><a href="module_event-simulate.html" title="event-simulate">event-simulate</a></li>
       
   471                                 <li class=""><a href="module_history.html" title="history">history</a></li>
       
   472                                 <li class=""><a href="module_imageloader.html" title="imageloader">imageloader</a></li>
       
   473                                 <li class=""><a href="module_io.html" title="io">io</a></li>
       
   474                                 <li class=""><a href="module_json.html" title="json">json</a></li>
       
   475                                 <li class=""><a href="module_node.html" title="node">node</a></li>
       
   476                                 <li class=""><a href="module_node-focusmanager.html" title="node-focusmanager">node-focusmanager</a></li>
       
   477                                 <li class=""><a href="module_node-menunav.html" title="node-menunav">node-menunav</a></li>
       
   478                                 <li class=""><a href="module_oop.html" title="oop">oop</a></li>
       
   479                                 <li class=""><a href="module_overlay.html" title="overlay">overlay</a></li>
       
   480                                 <li class=""><a href="module_plugin.html" title="plugin">plugin</a></li>
       
   481                                 <li class=""><a href="module_profiler.html" title="profiler">profiler</a></li>
       
   482                                 <li class=""><a href="module_queue-promote.html" title="queue-promote">queue-promote</a></li>
       
   483                                 <li class=""><a href="module_slider.html" title="slider">slider</a></li>
       
   484                                 <li class=""><a href="module_stylesheet.html" title="stylesheet">stylesheet</a></li>
       
   485                                 <li class=""><a href="module_substitute.html" title="substitute">substitute</a></li>
       
   486                                 <li class=""><a href="module_test.html" title="test">test</a></li>
       
   487                                 <li class=""><a href="module_widget.html" title="widget">widget</a></li>
       
   488                                 <li class=""><a href="module_widget-position.html" title="widget-position">widget-position</a></li>
       
   489                                 <li class=""><a href="module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a></li>
       
   490                                 <li class="selected"><a href="module_widget-stack.html" title="widget-stack">widget-stack</a></li>
       
   491                                 <li class=""><a href="module_widget-stdmod.html" title="widget-stdmod">widget-stdmod</a></li>
       
   492                                 <li class=""><a href="module_yui.html" title="yui">yui</a></li>
       
   493                         </ul>
       
   494                     </div>
       
   495 
       
   496                     <div id="classList" class="module">
       
   497                         <h4>Classes</h4>
       
   498                         <ul class="content">
       
   499                                 <li class=""><a href="WidgetStack.html" title="WidgetStack">WidgetStack</a></li>
       
   500                         </ul>
       
   501                     </div>
       
   502 
       
   503                     <div id="fileList" class="module">
       
   504                         <h4>Files</h4>
       
   505                         <ul class="content">        
       
   506                                 <li class="selected"><a href="Widget-Stack.js.html" title="Widget-Stack.js">Widget-Stack.js</a></li>
       
   507                         </ul>
       
   508                     </div>
       
   509 
       
   510 
       
   511 
       
   512 
       
   513 
       
   514             </div>
       
   515 		</div>
       
   516 	</div>
       
   517 	<div id="ft">
       
   518         <hr />
       
   519         Copyright &copy; 2009 Yahoo! Inc. All rights reserved.
       
   520 	</div>
       
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