src/cm/media/js/lib/yui/yui3.0.0/api/history.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: history   history.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>history&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_history.html" title="history">history</a>
       
    22                 
       
    23                  &gt; history.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">/*global YUI */</span>
       
    51 
       
    52 
       
    53 <span class="c">/**</span>
       
    54 <span class="c"> * The Browser History Utility provides the ability to use the back/forward</span>
       
    55 <span class="c"> * navigation buttons in a DHTML application. It also allows a DHTML</span>
       
    56 <span class="c"> * application to be bookmarked in a specific state.</span>
       
    57 <span class="c"> *</span>
       
    58 <span class="c"> * This utility requires the following static markup:</span>
       
    59 <span class="c"> *</span>
       
    60 <span class="c"> * &amp;lt;iframe id=&quot;yui-history-iframe&quot; src=&quot;path-to-real-asset-in-same-domain&quot;&amp;gt;&amp;lt;/iframe&amp;gt;</span>
       
    61 <span class="c"> * &amp;lt;input id=&quot;yui-history-field&quot; type=&quot;hidden&quot;&amp;gt;</span>
       
    62 <span class="c"> *</span>
       
    63 <span class="c"> * @module history</span>
       
    64 <span class="c"> */</span>
       
    65 
       
    66 <span class="c">/**</span>
       
    67 <span class="c"> * This class represents an instance of the browser history utility.</span>
       
    68 <span class="c"> * @class History</span>
       
    69 <span class="c"> * @constructor</span>
       
    70 <span class="c"> */</span>
       
    71 
       
    72         <span class="c">// Shortcuts, etc.</span>
       
    73 <span class="c"></span>    <span class="k">var</span> <span class="nx">win</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">win</span><span class="o">,</span>
       
    74         <span class="nx">doc</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>
       
    75 
       
    76         <span class="nx">encode</span> <span class="o">=</span> <span class="nb">encodeURIComponent</span><span class="o">,</span>
       
    77         <span class="nx">decode</span> <span class="o">=</span> <span class="nb">decodeURIComponent</span><span class="o">,</span>
       
    78 
       
    79         <span class="nx">H</span><span class="o">,</span> <span class="nx">G</span><span class="o">,</span>
       
    80 
       
    81         <span class="c">// YUI Compressor helper...</span>
       
    82 <span class="c"></span>        <span class="nx">E_MISSING_OR_INVALID_ARG</span> <span class="o">=</span> <span class="s1">&#39;Missing or invalid argument&#39;</span><span class="o">,</span>
       
    83 
       
    84         <span class="c">// Regular expression used to parse query strings and such.</span>
       
    85 <span class="c"></span>        <span class="nx">REGEXP</span> <span class="o">=</span> <span class="sr">/([^=&amp;]+)=([^&amp;]*)/g</span><span class="o">,</span>
       
    86 
       
    87         <span class="c">// A few private variables...</span>
       
    88 <span class="c"></span>        <span class="nx">_useIFrame</span> <span class="o">=</span> <span class="kc">false</span><span class="o">,</span>
       
    89         <span class="nx">_getHash</span><span class="o">,</span>
       
    90 
       
    91         <span class="c">/**</span>
       
    92 <span class="c">         * @event history:ready</span>
       
    93 <span class="c">         * @description Fires when the browser history utility is ready</span>
       
    94 <span class="c">         * @type Event.Custom</span>
       
    95 <span class="c">         */</span>
       
    96         <span class="nx">EV_HISTORY_READY</span> <span class="o">=</span> <span class="s1">&#39;history:ready&#39;</span><span class="o">,</span>
       
    97 
       
    98         <span class="c">/**</span>
       
    99 <span class="c">         * @event history:globalStateChange</span>
       
   100 <span class="c">         * @description Fires when the global state of the page has changed (that is,</span>
       
   101 <span class="c">         *     when the state of at least one browser history module has changed)</span>
       
   102 <span class="c">         * @type Event.Custom</span>
       
   103 <span class="c">         */</span>
       
   104         <span class="nx">EV_HISTORY_GLOBAL_STATE_CHANGE</span> <span class="o">=</span> <span class="s1">&#39;history:globalStateChange&#39;</span><span class="o">,</span>
       
   105 
       
   106         <span class="c">/**</span>
       
   107 <span class="c">         * @event history:moduleStateChange</span>
       
   108 <span class="c">         * @description Fires when the state of a history module object has changed</span>
       
   109 <span class="c">         * @type Event.Custom</span>
       
   110 <span class="c">         */</span>
       
   111         <span class="nx">EV_HISTORY_MODULE_STATE_CHANGE</span> <span class="o">=</span> <span class="s1">&#39;history:moduleStateChange&#39;</span><span class="o">;</span>
       
   112 
       
   113 
       
   114     <span class="k">if</span> <span class="o">(!</span><span class="nx">YUI</span><span class="o">.</span><span class="nx">Env</span><span class="o">.</span><span class="nx">history</span><span class="o">)</span> <span class="o">{</span>
       
   115 
       
   116         <span class="nx">YUI</span><span class="o">.</span><span class="nx">Env</span><span class="o">.</span><span class="nx">history</span> <span class="o">=</span> <span class="nx">G</span> <span class="o">=</span> <span class="o">{</span>
       
   117 
       
   118             <span class="c">// Flag used to tell whether the history utility is ready to be used.</span>
       
   119 <span class="c"></span>            <span class="nx">ready</span><span class="o">:</span> <span class="kc">false</span><span class="o">,</span>
       
   120 
       
   121             <span class="c">// List of registered modules.</span>
       
   122 <span class="c"></span>            <span class="nx">_modules</span><span class="o">:</span> <span class="o">[],</span>
       
   123 
       
   124             <span class="c">// INPUT field (with type=&quot;hidden&quot; or type=&quot;text&quot;) or TEXTAREA.</span>
       
   125 <span class="c"></span>            <span class="c">// This field keeps the value of the initial state, current state</span>
       
   126 <span class="c"></span>            <span class="c">// the list of all states across pages within a single browser session.</span>
       
   127 <span class="c"></span>            <span class="nx">_stateField</span><span class="o">:</span> <span class="kc">null</span><span class="o">,</span>
       
   128 
       
   129             <span class="c">// Hidden IFrame used to store the browsing history on IE6/7.</span>
       
   130 <span class="c"></span>            <span class="nx">_historyIFrame</span><span class="o">:</span> <span class="kc">null</span>
       
   131         <span class="o">};</span>
       
   132 
       
   133     <span class="o">}</span>
       
   134 
       
   135     <span class="c">/**</span>
       
   136 <span class="c">     * Returns the portion of the hash after the &#39;#&#39; symbol.</span>
       
   137 <span class="c">     * @method _getHash</span>
       
   138 <span class="c">     * @return {string} The hash portion of the document&#39;s location</span>
       
   139 <span class="c">     * @private</span>
       
   140 <span class="c">     */</span>
       
   141     <span class="k">if</span> <span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">UA</span><span class="o">.</span><span class="nx">gecko</span><span class="o">)</span> <span class="o">{</span>
       
   142         <span class="c">// We branch at runtime for Gecko since window.location.hash in Gecko</span>
       
   143 <span class="c"></span>        <span class="c">// returns a decoded string, and we want all encoding untouched.</span>
       
   144 <span class="c"></span>        <span class="nx">_getHash</span> <span class="o">=</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span>
       
   145             <span class="k">var</span> <span class="nx">m</span> <span class="o">=</span> <span class="sr">/#(.*)$/</span><span class="o">.</span><span class="nx">exec</span><span class="o">(</span><span class="nx">win</span><span class="o">.</span><span class="nx">location</span><span class="o">.</span><span class="nx">href</span><span class="o">);</span>
       
   146             <span class="k">return</span> <span class="nx">m</span> <span class="o">&amp;&amp;</span> <span class="nx">m</span><span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">?</span> <span class="nx">m</span><span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">:</span> <span class="s1">&#39;&#39;</span><span class="o">;</span>
       
   147         <span class="o">};</span>
       
   148     <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   149         <span class="nx">_getHash</span> <span class="o">=</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span>
       
   150             <span class="k">return</span> <span class="nx">win</span><span class="o">.</span><span class="nx">location</span><span class="o">.</span><span class="nx">hash</span><span class="o">.</span><span class="nx">substr</span><span class="o">(</span><span class="m">1</span><span class="o">);</span>
       
   151         <span class="o">};</span>
       
   152     <span class="o">}</span>
       
   153 
       
   154     <span class="c">/**</span>
       
   155 <span class="c">     * Stores the initial state and current state for all registered modules</span>
       
   156 <span class="c">     * in the (hidden) form field specified during initialization.</span>
       
   157 <span class="c">     * @method _storeStates</span>
       
   158 <span class="c">     * @private</span>
       
   159 <span class="c">     */</span>
       
   160     <span class="k">function</span> <span class="nx">_storeStates</span><span class="o">()</span> <span class="o">{</span>
       
   161         <span class="k">var</span> <span class="nx">initialStates</span> <span class="o">=</span> <span class="o">[],</span> <span class="nx">currentStates</span> <span class="o">=</span> <span class="o">[];</span>
       
   162 
       
   163         <span class="nx">Y</span><span class="o">.</span><span class="nb">Object</span><span class="o">.</span><span class="nx">each</span><span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">,</span> <span class="k">function</span> <span class="o">(</span><span class="nx">module</span><span class="o">,</span> <span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   164             <span class="nx">initialStates</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="nx">moduleId</span> <span class="o">+</span> <span class="s1">&#39;=&#39;</span> <span class="o">+</span> <span class="nx">module</span><span class="o">.</span><span class="nx">initialState</span><span class="o">);</span>
       
   165             <span class="nx">currentStates</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="nx">moduleId</span> <span class="o">+</span> <span class="s1">&#39;=&#39;</span> <span class="o">+</span> <span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span><span class="o">);</span>
       
   166         <span class="o">});</span>
       
   167 
       
   168         <span class="nx">G</span><span class="o">.</span><span class="nx">_stateField</span><span class="o">.</span><span class="nx">set</span><span class="o">(</span><span class="s1">&#39;value&#39;</span><span class="o">,</span> <span class="nx">initialStates</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="s1">&#39;&amp;&#39;</span><span class="o">)</span> <span class="o">+</span> <span class="s1">&#39;|&#39;</span> <span class="o">+</span> <span class="nx">currentStates</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="s1">&#39;&amp;&#39;</span><span class="o">));</span>
       
   169     <span class="o">}</span>
       
   170 
       
   171     <span class="c">/**</span>
       
   172 <span class="c">     * Sets the new currentState attribute of all modules depending on the new fully</span>
       
   173 <span class="c">     * qualified state. Also notifies the modules which current state has changed.</span>
       
   174 <span class="c">     * @method _handleFQStateChange</span>
       
   175 <span class="c">     * @param {string} fqstate fully qualified state</span>
       
   176 <span class="c">     * @private</span>
       
   177 <span class="c">     */</span>
       
   178     <span class="k">function</span> <span class="nx">_handleFQStateChange</span><span class="o">(</span><span class="nx">fqstate</span><span class="o">)</span> <span class="o">{</span>
       
   179         <span class="k">var</span> <span class="nx">m</span><span class="o">,</span> <span class="nx">states</span> <span class="o">=</span> <span class="o">[],</span> <span class="nx">globalStateChanged</span> <span class="o">=</span> <span class="kc">false</span><span class="o">;</span>
       
   180 
       
   181         <span class="k">if</span> <span class="o">(</span><span class="nx">fqstate</span><span class="o">)</span> <span class="o">{</span>
       
   182 
       
   183             <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">lastIndex</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   184             <span class="k">while</span> <span class="o">((</span><span class="nx">m</span> <span class="o">=</span> <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">exec</span><span class="o">(</span><span class="nx">fqstate</span><span class="o">)))</span> <span class="o">{</span>
       
   185                 <span class="nx">states</span><span class="o">[</span><span class="nx">m</span><span class="o">[</span><span class="m">1</span><span class="o">]]</span> <span class="o">=</span> <span class="nx">m</span><span class="o">[</span><span class="m">2</span><span class="o">];</span>
       
   186             <span class="o">}</span>
       
   187 
       
   188             <span class="nx">Y</span><span class="o">.</span><span class="nb">Object</span><span class="o">.</span><span class="nx">each</span><span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">,</span> <span class="k">function</span> <span class="o">(</span><span class="nx">module</span><span class="o">,</span> <span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   189                 <span class="k">var</span> <span class="nx">currentState</span> <span class="o">=</span> <span class="nx">states</span><span class="o">[</span><span class="nx">moduleId</span><span class="o">];</span>
       
   190 
       
   191                 <span class="k">if</span> <span class="o">(!</span><span class="nx">currentState</span> <span class="o">||</span> <span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span> <span class="o">!==</span> <span class="nx">currentState</span><span class="o">)</span> <span class="o">{</span>
       
   192                     <span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span> <span class="o">=</span> <span class="nx">currentState</span> <span class="o">||</span> <span class="nx">module</span><span class="o">.</span><span class="nx">initialState</span><span class="o">;</span>
       
   193                     <span class="nx">module</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">EV_HISTORY_MODULE_STATE_CHANGE</span><span class="o">,</span> <span class="nx">decode</span><span class="o">(</span><span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span><span class="o">));</span>
       
   194                     <span class="nx">globalStateChanged</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   195                 <span class="o">}</span>
       
   196             <span class="o">});</span>
       
   197 
       
   198         <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   199 
       
   200             <span class="nx">Y</span><span class="o">.</span><span class="nb">Object</span><span class="o">.</span><span class="nx">each</span><span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">,</span> <span class="k">function</span> <span class="o">(</span><span class="nx">module</span><span class="o">,</span> <span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   201                 <span class="k">if</span> <span class="o">(</span><span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span> <span class="o">!==</span> <span class="nx">module</span><span class="o">.</span><span class="nx">initialState</span><span class="o">)</span> <span class="o">{</span>
       
   202                     <span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span> <span class="o">=</span> <span class="nx">module</span><span class="o">.</span><span class="nx">initialState</span><span class="o">;</span>
       
   203                     <span class="nx">module</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">EV_HISTORY_MODULE_STATE_CHANGE</span><span class="o">,</span> <span class="nx">decode</span><span class="o">(</span><span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span><span class="o">));</span>
       
   204                     <span class="nx">globalStateChanged</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   205                 <span class="o">}</span>
       
   206             <span class="o">});</span>
       
   207         <span class="o">}</span>
       
   208 
       
   209         <span class="k">if</span> <span class="o">(</span><span class="nx">globalStateChanged</span><span class="o">)</span> <span class="o">{</span>
       
   210             <span class="nx">H</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">EV_HISTORY_GLOBAL_STATE_CHANGE</span><span class="o">);</span>
       
   211         <span class="o">}</span>
       
   212     <span class="o">}</span>
       
   213 
       
   214     <span class="c">/**</span>
       
   215 <span class="c">     * Update the IFrame with our new state.</span>
       
   216 <span class="c">     * @method _updateIFrame</span>
       
   217 <span class="c">     * @private</span>
       
   218 <span class="c">     * @return {boolean} true if successful. false otherwise.</span>
       
   219 <span class="c">     */</span>
       
   220     <span class="k">function</span> <span class="nx">_updateIFrame</span><span class="o">(</span><span class="nx">fqstate</span><span class="o">)</span> <span class="o">{</span>
       
   221         <span class="k">var</span> <span class="nx">html</span><span class="o">,</span> <span class="nx">doc</span><span class="o">;</span>
       
   222 
       
   223         <span class="nx">html</span> <span class="o">=</span> <span class="s1">&#39;&lt;html&gt;&lt;body&gt;&#39;</span> <span class="o">+</span> <span class="nx">fqstate</span> <span class="o">+</span> <span class="s1">&#39;&lt;/body&gt;&lt;/html&gt;&#39;</span><span class="o">;</span>
       
   224 
       
   225         <span class="k">try</span> <span class="o">{</span>
       
   226             <span class="nx">doc</span> <span class="o">=</span> <span class="nx">G</span><span class="o">.</span><span class="nx">_historyIFrame</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;contentWindow.document&#39;</span><span class="o">);</span>
       
   227             <span class="c">// TODO: The Node API should expose these methods in the very near future...</span>
       
   228 <span class="c"></span>            <span class="nx">doc</span><span class="o">.</span><span class="nx">invoke</span><span class="o">(</span><span class="s1">&#39;open&#39;</span><span class="o">);</span>
       
   229             <span class="nx">doc</span><span class="o">.</span><span class="nx">invoke</span><span class="o">(</span><span class="s1">&#39;write&#39;</span><span class="o">,</span> <span class="nx">html</span><span class="o">,</span> <span class="s1">&#39;&#39;</span><span class="o">,</span> <span class="s1">&#39;&#39;</span><span class="o">,</span> <span class="s1">&#39;&#39;</span><span class="o">,</span> <span class="s1">&#39;&#39;</span><span class="o">);</span> <span class="c">// see bug #2447937</span>
       
   230 <span class="c"></span>            <span class="nx">doc</span><span class="o">.</span><span class="nx">invoke</span><span class="o">(</span><span class="s1">&#39;close&#39;</span><span class="o">);</span>
       
   231             <span class="k">return</span> <span class="kc">true</span><span class="o">;</span>
       
   232         <span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="nx">e</span><span class="o">)</span> <span class="o">{</span>
       
   233             <span class="k">return</span> <span class="kc">false</span><span class="o">;</span>
       
   234         <span class="o">}</span>
       
   235     <span class="o">}</span>
       
   236 
       
   237     <span class="c">/**</span>
       
   238 <span class="c">     * Periodically checks whether our internal IFrame is ready to be used</span>
       
   239 <span class="c">     * @method _checkIframeLoaded</span>
       
   240 <span class="c">     * @private</span>
       
   241 <span class="c">     */</span>
       
   242     <span class="k">function</span> <span class="nx">_checkIframeLoaded</span><span class="o">()</span> <span class="o">{</span>
       
   243         <span class="k">var</span> <span class="nx">elem</span><span class="o">,</span> <span class="nx">fqstate</span><span class="o">,</span> <span class="nx">hash</span><span class="o">;</span>
       
   244 
       
   245         <span class="k">if</span> <span class="o">(!</span><span class="nx">G</span><span class="o">.</span><span class="nx">_historyIFrame</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;contentWindow.document&#39;</span><span class="o">))</span> <span class="o">{</span>
       
   246             <span class="c">// Check again in 10 msec...</span>
       
   247 <span class="c"></span>            <span class="nx">setTimeout</span><span class="o">(</span><span class="nx">_checkIframeLoaded</span><span class="o">,</span> <span class="m">10</span><span class="o">);</span>
       
   248             <span class="k">return</span><span class="o">;</span>
       
   249         <span class="o">}</span>
       
   250 
       
   251         <span class="c">// Periodically check whether a navigate operation has been</span>
       
   252 <span class="c"></span>        <span class="c">// requested on the main window. This will happen when</span>
       
   253 <span class="c"></span>        <span class="c">// History.navigate has been called or after the user</span>
       
   254 <span class="c"></span>        <span class="c">// has hit the back/forward button.</span>
       
   255 <span class="c"></span>        <span class="nx">elem</span> <span class="o">=</span> <span class="nx">G</span><span class="o">.</span><span class="nx">_historyIFrame</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;contentWindow.document.body&#39;</span><span class="o">);</span>
       
   256         <span class="c">// We must use innerText, and not innerHTML because our string contains</span>
       
   257 <span class="c"></span>        <span class="c">// the &quot;&amp;&quot; character (which would end up being escaped as &quot;&amp;amp;&quot;) and</span>
       
   258 <span class="c"></span>        <span class="c">// the string comparison would fail...</span>
       
   259 <span class="c"></span>        <span class="nx">fqstate</span> <span class="o">=</span> <span class="nx">elem</span> <span class="o">?</span> <span class="nx">elem</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;innerText&#39;</span><span class="o">)</span> <span class="o">:</span> <span class="kc">null</span><span class="o">;</span>
       
   260 
       
   261         <span class="nx">hash</span> <span class="o">=</span> <span class="nx">_getHash</span><span class="o">();</span>
       
   262 
       
   263         <span class="nx">setInterval</span><span class="o">(</span><span class="k">function</span> <span class="o">()</span> <span class="o">{</span>
       
   264             <span class="k">var</span> <span class="nx">newfqstate</span><span class="o">,</span> <span class="nx">states</span><span class="o">,</span> <span class="nx">newHash</span><span class="o">;</span>
       
   265 
       
   266             <span class="nx">elem</span> <span class="o">=</span> <span class="nx">G</span><span class="o">.</span><span class="nx">_historyIFrame</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;contentWindow.document.body&#39;</span><span class="o">);</span>
       
   267             <span class="c">// See my comment above about using innerText instead of innerHTML...</span>
       
   268 <span class="c"></span>            <span class="nx">newfqstate</span> <span class="o">=</span> <span class="nx">elem</span> <span class="o">?</span> <span class="nx">elem</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;innerText&#39;</span><span class="o">)</span> <span class="o">:</span> <span class="kc">null</span><span class="o">;</span>
       
   269 
       
   270             <span class="nx">newHash</span> <span class="o">=</span> <span class="nx">_getHash</span><span class="o">();</span>
       
   271 
       
   272             <span class="k">if</span> <span class="o">(</span><span class="nx">newfqstate</span> <span class="o">!==</span> <span class="nx">fqstate</span><span class="o">)</span> <span class="o">{</span>
       
   273 
       
   274                 <span class="nx">fqstate</span> <span class="o">=</span> <span class="nx">newfqstate</span><span class="o">;</span>
       
   275                 <span class="nx">_handleFQStateChange</span><span class="o">(</span><span class="nx">fqstate</span><span class="o">);</span>
       
   276 
       
   277                 <span class="k">if</span> <span class="o">(!</span><span class="nx">fqstate</span><span class="o">)</span> <span class="o">{</span>
       
   278                     <span class="nx">states</span> <span class="o">=</span> <span class="o">[];</span>
       
   279                     <span class="nx">Y</span><span class="o">.</span><span class="nb">Object</span><span class="o">.</span><span class="nx">each</span><span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">,</span> <span class="k">function</span> <span class="o">(</span><span class="nx">module</span><span class="o">,</span> <span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   280                         <span class="nx">states</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="nx">moduleId</span> <span class="o">+</span> <span class="s1">&#39;=&#39;</span> <span class="o">+</span> <span class="nx">module</span><span class="o">.</span><span class="nx">initialState</span><span class="o">);</span>
       
   281                     <span class="o">});</span>
       
   282                     <span class="nx">newHash</span> <span class="o">=</span> <span class="nx">states</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="s1">&#39;&amp;&#39;</span><span class="o">);</span>
       
   283                 <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   284                     <span class="nx">newHash</span> <span class="o">=</span> <span class="nx">fqstate</span><span class="o">;</span>
       
   285                 <span class="o">}</span>
       
   286 
       
   287                 <span class="c">// Allow the state to be bookmarked by setting the top window&#39;s</span>
       
   288 <span class="c"></span>                <span class="c">// URL fragment identifier. Note that here, we are on IE &lt; 8</span>
       
   289 <span class="c"></span>                <span class="c">// which does not touch the browser history when changing the</span>
       
   290 <span class="c"></span>                <span class="c">// hash (unlike all the other browsers).</span>
       
   291 <span class="c"></span>                <span class="nx">win</span><span class="o">.</span><span class="nx">location</span><span class="o">.</span><span class="nx">hash</span> <span class="o">=</span> <span class="nx">hash</span> <span class="o">=</span> <span class="nx">newHash</span><span class="o">;</span>
       
   292 
       
   293                 <span class="nx">_storeStates</span><span class="o">();</span>
       
   294 
       
   295             <span class="o">}</span> <span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">newHash</span> <span class="o">!==</span> <span class="nx">hash</span><span class="o">)</span> <span class="o">{</span>
       
   296 
       
   297                 <span class="c">// The hash has changed. The user might have clicked on a link,</span>
       
   298 <span class="c"></span>                <span class="c">// or modified the URL directly, or opened the same application</span>
       
   299 <span class="c"></span>                <span class="c">// bookmarked in a specific state using a bookmark. However, we</span>
       
   300 <span class="c"></span>                <span class="c">// know the hash change was not caused by a hit on the back or</span>
       
   301 <span class="c"></span>                <span class="c">// forward buttons, or by a call to navigate() (because it would</span>
       
   302 <span class="c"></span>                <span class="c">// have been handled above) We must handle these cases, which is</span>
       
   303 <span class="c"></span>                <span class="c">// why we also need to keep track of hash changes on IE!</span>
       
   304 <span class="c"></span>
       
   305                 <span class="c">// Note that IE6 has some major issues with this kind of user</span>
       
   306 <span class="c"></span>                <span class="c">// interaction (the history stack gets completely messed up)</span>
       
   307 <span class="c"></span>                <span class="c">// but it seems to work fine on IE7.</span>
       
   308 <span class="c"></span>
       
   309                 <span class="nx">hash</span> <span class="o">=</span> <span class="nx">newHash</span><span class="o">;</span>
       
   310 
       
   311                 <span class="c">// Now, store a new history entry. The following will cause the</span>
       
   312 <span class="c"></span>                <span class="c">// code above to execute, doing all the dirty work for us...</span>
       
   313 <span class="c"></span>                <span class="nx">_updateIFrame</span><span class="o">(</span><span class="nx">newHash</span><span class="o">);</span>
       
   314             <span class="o">}</span>
       
   315 
       
   316         <span class="o">},</span> <span class="m">50</span><span class="o">);</span>
       
   317 
       
   318         <span class="nx">G</span><span class="o">.</span><span class="nx">ready</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   319         <span class="nx">H</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">EV_HISTORY_READY</span><span class="o">);</span>
       
   320     <span class="o">}</span>
       
   321 
       
   322     <span class="c">/**</span>
       
   323 <span class="c">     * Finish up the initialization of the browser utility library.</span>
       
   324 <span class="c">     * @method _initialize</span>
       
   325 <span class="c">     * @private</span>
       
   326 <span class="c">     */</span>
       
   327     <span class="k">function</span> <span class="nx">_initialize</span><span class="o">()</span> <span class="o">{</span>
       
   328         <span class="k">var</span> <span class="nx">m</span><span class="o">,</span> <span class="nx">parts</span><span class="o">,</span> <span class="nx">moduleId</span><span class="o">,</span> <span class="nx">module</span><span class="o">,</span> <span class="nx">initialState</span><span class="o">,</span> <span class="nx">currentState</span><span class="o">,</span> <span class="nx">hash</span><span class="o">;</span>
       
   329 
       
   330         <span class="c">// Decode the content of our storage field...</span>
       
   331 <span class="c"></span>        <span class="nx">parts</span> <span class="o">=</span> <span class="nx">G</span><span class="o">.</span><span class="nx">_stateField</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;value&#39;</span><span class="o">).</span><span class="nx">split</span><span class="o">(</span><span class="s1">&#39;|&#39;</span><span class="o">);</span>
       
   332 
       
   333         <span class="k">if</span> <span class="o">(</span><span class="nx">parts</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>
       
   334 
       
   335             <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">lastIndex</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   336             <span class="k">while</span> <span class="o">((</span><span class="nx">m</span> <span class="o">=</span> <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">exec</span><span class="o">(</span><span class="nx">parts</span><span class="o">[</span><span class="m">0</span><span class="o">])))</span> <span class="o">{</span>
       
   337                 <span class="nx">moduleId</span> <span class="o">=</span> <span class="nx">m</span><span class="o">[</span><span class="m">1</span><span class="o">];</span>
       
   338                 <span class="nx">initialState</span> <span class="o">=</span> <span class="nx">m</span><span class="o">[</span><span class="m">2</span><span class="o">];</span>
       
   339                 <span class="nx">module</span> <span class="o">=</span> <span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">[</span><span class="nx">moduleId</span><span class="o">];</span>
       
   340                 <span class="k">if</span> <span class="o">(</span><span class="nx">module</span><span class="o">)</span> <span class="o">{</span>
       
   341                     <span class="nx">module</span><span class="o">.</span><span class="nx">initialState</span> <span class="o">=</span> <span class="nx">initialState</span><span class="o">;</span>
       
   342                 <span class="o">}</span>
       
   343             <span class="o">}</span>
       
   344 
       
   345             <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">lastIndex</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   346             <span class="k">while</span> <span class="o">((</span><span class="nx">m</span> <span class="o">=</span> <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">exec</span><span class="o">(</span><span class="nx">parts</span><span class="o">[</span><span class="m">1</span><span class="o">])))</span> <span class="o">{</span>
       
   347                 <span class="nx">moduleId</span> <span class="o">=</span> <span class="nx">m</span><span class="o">[</span><span class="m">1</span><span class="o">];</span>
       
   348                 <span class="nx">currentState</span> <span class="o">=</span> <span class="nx">m</span><span class="o">[</span><span class="m">2</span><span class="o">];</span>
       
   349                 <span class="nx">module</span> <span class="o">=</span> <span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">[</span><span class="nx">moduleId</span><span class="o">];</span>
       
   350                 <span class="k">if</span> <span class="o">(</span><span class="nx">module</span><span class="o">)</span> <span class="o">{</span>
       
   351                     <span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span> <span class="o">=</span> <span class="nx">currentState</span><span class="o">;</span>
       
   352                 <span class="o">}</span>
       
   353             <span class="o">}</span>
       
   354         <span class="o">}</span>
       
   355 
       
   356         <span class="c">// IE8 in IE7 mode defines window.onhashchange, but never fires it...</span>
       
   357 <span class="c"></span>        <span class="k">if</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">isUndefined</span><span class="o">(</span><span class="nx">win</span><span class="o">.</span><span class="nx">onhashchange</span><span class="o">)</span> <span class="o">&amp;&amp;</span>
       
   358             <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">isUndefined</span><span class="o">(</span><span class="nx">doc</span><span class="o">.</span><span class="nx">documentMode</span><span class="o">)</span> <span class="o">||</span> <span class="nx">doc</span><span class="o">.</span><span class="nx">documentMode</span> <span class="o">&gt;</span> <span class="m">7</span><span class="o">))</span> <span class="o">{</span>
       
   359 
       
   360             <span class="c">// The HTML5 way of handling DHTML history...</span>
       
   361 <span class="c"></span>            <span class="nx">win</span><span class="o">.</span><span class="nx">onhashchange</span> <span class="o">=</span> <span class="k">function</span> <span class="o">()</span> <span class="o">{</span>
       
   362                 <span class="k">var</span> <span class="nx">hash</span> <span class="o">=</span> <span class="nx">_getHash</span><span class="o">();</span>
       
   363                 <span class="nx">_handleFQStateChange</span><span class="o">(</span><span class="nx">hash</span><span class="o">);</span>
       
   364                 <span class="nx">_storeStates</span><span class="o">();</span>
       
   365             <span class="o">};</span>
       
   366 
       
   367             <span class="nx">G</span><span class="o">.</span><span class="nx">ready</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   368             <span class="nx">H</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">EV_HISTORY_READY</span><span class="o">);</span>
       
   369 
       
   370         <span class="o">}</span> <span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">_useIFrame</span><span class="o">)</span> <span class="o">{</span>
       
   371 
       
   372             <span class="c">// IE &lt; 8 or IE8 in quirks mode or IE7 standards mode</span>
       
   373 <span class="c"></span>            <span class="nx">_checkIframeLoaded</span><span class="o">();</span>
       
   374 
       
   375         <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   376 
       
   377             <span class="c">// Periodically check whether a navigate operation has been</span>
       
   378 <span class="c"></span>            <span class="c">// requested on the main window. This will happen when</span>
       
   379 <span class="c"></span>            <span class="c">// History.navigate has been called, or after the user</span>
       
   380 <span class="c"></span>            <span class="c">// has hit the back/forward button.</span>
       
   381 <span class="c"></span>
       
   382             <span class="c">// On Gecko and Opera, we just need to watch the hash...</span>
       
   383 <span class="c"></span>            <span class="nx">hash</span> <span class="o">=</span> <span class="nx">_getHash</span><span class="o">();</span>
       
   384 
       
   385             <span class="nx">setInterval</span><span class="o">(</span><span class="k">function</span> <span class="o">()</span> <span class="o">{</span>
       
   386                 <span class="k">var</span> <span class="nx">newHash</span> <span class="o">=</span> <span class="nx">_getHash</span><span class="o">();</span>
       
   387                 <span class="k">if</span> <span class="o">(</span><span class="nx">newHash</span> <span class="o">!==</span> <span class="nx">hash</span><span class="o">)</span> <span class="o">{</span>
       
   388                     <span class="nx">hash</span> <span class="o">=</span> <span class="nx">newHash</span><span class="o">;</span>
       
   389                     <span class="nx">_handleFQStateChange</span><span class="o">(</span><span class="nx">hash</span><span class="o">);</span>
       
   390                     <span class="nx">_storeStates</span><span class="o">();</span>
       
   391                 <span class="o">}</span>
       
   392             <span class="o">},</span> <span class="m">50</span><span class="o">);</span>
       
   393 
       
   394             <span class="nx">G</span><span class="o">.</span><span class="nx">ready</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   395             <span class="nx">H</span><span class="o">.</span><span class="nx">fire</span><span class="o">(</span><span class="nx">EV_HISTORY_READY</span><span class="o">);</span>
       
   396         <span class="o">}</span>
       
   397     <span class="o">}</span>
       
   398 
       
   399 
       
   400     <span class="nx">H</span> <span class="o">=</span> <span class="o">{</span>
       
   401 
       
   402         <span class="c">/**</span>
       
   403 <span class="c">         * Registers a new module.</span>
       
   404 <span class="c">         * @method register</span>
       
   405 <span class="c">         * @param {string} moduleId Non-empty string uniquely identifying the</span>
       
   406 <span class="c">         *     module you wish to register.</span>
       
   407 <span class="c">         * @param {string} initialState The initial state of the specified</span>
       
   408 <span class="c">         *     module corresponding to its earliest history entry.</span>
       
   409 <span class="c">         * @return {History.Module} The newly registered module</span>
       
   410 <span class="c">         */</span>
       
   411         <span class="nx">register</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">moduleId</span><span class="o">,</span> <span class="nx">initialState</span><span class="o">)</span> <span class="o">{</span>
       
   412             <span class="k">var</span> <span class="nx">module</span><span class="o">;</span>
       
   413 
       
   414             <span class="k">if</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><span class="nx">moduleId</span><span class="o">)</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><span class="nx">moduleId</span><span class="o">)</span> <span class="o">===</span> <span class="s1">&#39;&#39;</span> <span class="o">||</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><span class="nx">initialState</span><span class="o">))</span> <span class="o">{</span>
       
   415                 <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="nx">E_MISSING_OR_INVALID_ARG</span><span class="o">);</span>
       
   416             <span class="o">}</span>
       
   417 
       
   418             <span class="nx">moduleId</span> <span class="o">=</span> <span class="nx">encode</span><span class="o">(</span><span class="nx">moduleId</span><span class="o">);</span>
       
   419             <span class="nx">initialState</span> <span class="o">=</span> <span class="nx">encode</span><span class="o">(</span><span class="nx">initialState</span><span class="o">);</span>
       
   420 
       
   421             <span class="k">if</span> <span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">[</span><span class="nx">moduleId</span><span class="o">])</span> <span class="o">{</span>
       
   422                 <span class="c">// The module seems to have already been registered.</span>
       
   423 <span class="c"></span>                <span class="k">return</span><span class="o">;</span>
       
   424             <span class="o">}</span>
       
   425 
       
   426             <span class="c">// Note: A module CANNOT be registered once the browser history</span>
       
   427 <span class="c"></span>            <span class="c">// utility has been initialized. This is related to reading and</span>
       
   428 <span class="c"></span>            <span class="c">// writing state values from/to the input field. Relaxing this</span>
       
   429 <span class="c"></span>            <span class="c">// rule would potentially create situations rather complicated</span>
       
   430 <span class="c"></span>            <span class="c">// to deal with.</span>
       
   431 <span class="c"></span>            <span class="k">if</span> <span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">ready</span><span class="o">)</span> <span class="o">{</span>
       
   432                 <span class="k">return</span> <span class="kc">null</span><span class="o">;</span>
       
   433             <span class="o">}</span>
       
   434 
       
   435             <span class="nx">module</span> <span class="o">=</span> <span class="k">new</span> <span class="nx">H</span><span class="o">.</span><span class="nx">Module</span><span class="o">(</span><span class="nx">moduleId</span><span class="o">,</span> <span class="nx">initialState</span><span class="o">);</span>
       
   436             <span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">[</span><span class="nx">moduleId</span><span class="o">]</span> <span class="o">=</span> <span class="nx">module</span><span class="o">;</span>
       
   437             <span class="k">return</span> <span class="nx">module</span><span class="o">;</span>
       
   438         <span class="o">},</span>
       
   439 
       
   440         <span class="c">/**</span>
       
   441 <span class="c">         * Initializes the Browser History Manager. Call this method</span>
       
   442 <span class="c">         * from a script block located right after the opening body tag.</span>
       
   443 <span class="c">         * @method initialize</span>
       
   444 <span class="c">         * @param {string|HTML Element} stateField &lt;input type=&quot;hidden&quot;&gt; used</span>
       
   445 <span class="c">         *     to store application states. Must be in the static markup.</span>
       
   446 <span class="c">         * @param {string|HTML Element} historyIFrame IFrame used to store</span>
       
   447 <span class="c">         *     the history (only required for IE6/7)</span>
       
   448 <span class="c">         * @public</span>
       
   449 <span class="c">         */</span>
       
   450         <span class="nx">initialize</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">stateField</span><span class="o">,</span> <span class="nx">historyIFrame</span><span class="o">)</span> <span class="o">{</span>
       
   451             <span class="k">var</span> <span class="nx">tagName</span><span class="o">,</span> <span class="nx">type</span><span class="o">;</span>
       
   452 
       
   453             <span class="k">if</span> <span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">ready</span><span class="o">)</span> <span class="o">{</span>
       
   454                 <span class="c">// The browser history utility has already been initialized.</span>
       
   455 <span class="c"></span>                <span class="k">return</span> <span class="kc">true</span><span class="o">;</span>
       
   456             <span class="o">}</span>
       
   457 
       
   458             <span class="nx">stateField</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">stateField</span><span class="o">);</span>
       
   459             <span class="k">if</span> <span class="o">(!</span><span class="nx">stateField</span><span class="o">)</span> <span class="o">{</span>
       
   460                 <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="nx">E_MISSING_OR_INVALID_ARG</span><span class="o">);</span>
       
   461             <span class="o">}</span>
       
   462 
       
   463             <span class="nx">tagName</span> <span class="o">=</span> <span class="nx">stateField</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;tagName&#39;</span><span class="o">).</span><span class="nx">toUpperCase</span><span class="o">();</span>
       
   464             <span class="nx">type</span> <span class="o">=</span> <span class="nx">stateField</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;type&#39;</span><span class="o">);</span>
       
   465 
       
   466             <span class="k">if</span> <span class="o">(</span><span class="nx">tagName</span> <span class="o">!==</span> <span class="s1">&#39;TEXTAREA&#39;</span> <span class="o">&amp;&amp;</span> <span class="o">(</span><span class="nx">tagName</span> <span class="o">!==</span> <span class="s1">&#39;INPUT&#39;</span> <span class="o">||</span> <span class="nx">type</span> <span class="o">!==</span> <span class="s1">&#39;hidden&#39;</span> <span class="o">&amp;&amp;</span> <span class="nx">type</span> <span class="o">!==</span> <span class="s1">&#39;text&#39;</span><span class="o">))</span> <span class="o">{</span>
       
   467                 <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="nx">E_MISSING_OR_INVALID_ARG</span><span class="o">);</span>
       
   468             <span class="o">}</span>
       
   469 
       
   470             <span class="c">// IE &lt; 8 or IE8 in quirks mode or IE7 standards mode</span>
       
   471 <span class="c"></span>            <span class="k">if</span> <span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">UA</span><span class="o">.</span><span class="nx">ie</span> <span class="o">&amp;&amp;</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">isUndefined</span><span class="o">(</span><span class="nx">doc</span><span class="o">.</span><span class="nx">documentMode</span><span class="o">)</span> <span class="o">||</span> <span class="nx">doc</span><span class="o">.</span><span class="nx">documentMode</span> <span class="o">&lt;</span> <span class="m">8</span><span class="o">))</span> <span class="o">{</span>
       
   472                 <span class="nx">_useIFrame</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   473                 <span class="nx">historyIFrame</span> <span class="o">=</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="nx">historyIFrame</span><span class="o">);</span>
       
   474                 <span class="k">if</span> <span class="o">(!</span><span class="nx">historyIFrame</span> <span class="o">||</span> <span class="nx">historyIFrame</span><span class="o">.</span><span class="nx">get</span><span class="o">(</span><span class="s1">&#39;tagName&#39;</span><span class="o">).</span><span class="nx">toUpperCase</span><span class="o">()</span> <span class="o">!==</span> <span class="s1">&#39;IFRAME&#39;</span><span class="o">)</span> <span class="o">{</span>
       
   475                     <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="nx">E_MISSING_OR_INVALID_ARG</span><span class="o">);</span>
       
   476                 <span class="o">}</span>
       
   477             <span class="o">}</span>
       
   478 
       
   479             <span class="k">if</span> <span class="o">(</span><span class="nx">Y</span><span class="o">.</span><span class="nx">UA</span><span class="o">.</span><span class="nx">opera</span> <span class="o">&amp;&amp;</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">isUndefined</span><span class="o">(</span><span class="nx">win</span><span class="o">.</span><span class="nx">history</span><span class="o">.</span><span class="nx">navigationMode</span><span class="o">))</span> <span class="o">{</span>
       
   480                 <span class="c">// Disable Opera&#39;s fast back/forward navigation mode and put</span>
       
   481 <span class="c"></span>                <span class="c">// it in compatible mode. This makes anchor-based history</span>
       
   482 <span class="c"></span>                <span class="c">// navigation work after the page has been navigated away</span>
       
   483 <span class="c"></span>                <span class="c">// from and re-activated, at the cost of slowing down</span>
       
   484 <span class="c"></span>                <span class="c">// back/forward navigation to and from that page.</span>
       
   485 <span class="c"></span>                <span class="nx">win</span><span class="o">.</span><span class="nx">history</span><span class="o">.</span><span class="nx">navigationMode</span> <span class="o">=</span> <span class="s1">&#39;compatible&#39;</span><span class="o">;</span>
       
   486             <span class="o">}</span>
       
   487 
       
   488             <span class="nx">G</span><span class="o">.</span><span class="nx">_stateField</span> <span class="o">=</span> <span class="nx">stateField</span><span class="o">;</span>
       
   489             <span class="nx">G</span><span class="o">.</span><span class="nx">_historyIFrame</span> <span class="o">=</span> <span class="nx">historyIFrame</span><span class="o">;</span>
       
   490 
       
   491             <span class="nx">Y</span><span class="o">.</span><span class="nx">on</span><span class="o">(</span><span class="s1">&#39;domready&#39;</span><span class="o">,</span> <span class="nx">_initialize</span><span class="o">);</span>
       
   492             <span class="k">return</span> <span class="kc">true</span><span class="o">;</span>
       
   493         <span class="o">},</span>
       
   494 
       
   495         <span class="c">/**</span>
       
   496 <span class="c">         * Stores a new entry in the browser history by changing the state of a registered module.</span>
       
   497 <span class="c">         * @method navigate</span>
       
   498 <span class="c">         * @param {string} module Non-empty string representing your module.</span>
       
   499 <span class="c">         * @param {string} state String representing the new state of the specified module.</span>
       
   500 <span class="c">         * @return {boolean} Indicates whether the new state was successfully added to the history.</span>
       
   501 <span class="c">         * @public</span>
       
   502 <span class="c">         */</span>
       
   503         <span class="nx">navigate</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">moduleId</span><span class="o">,</span> <span class="nx">state</span><span class="o">)</span> <span class="o">{</span>
       
   504             <span class="k">var</span> <span class="nx">states</span><span class="o">;</span>
       
   505 
       
   506             <span class="k">if</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><span class="nx">moduleId</span><span class="o">)</span> <span class="o">||</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><span class="nx">state</span><span class="o">))</span> <span class="o">{</span>
       
   507                 <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="nx">E_MISSING_OR_INVALID_ARG</span><span class="o">);</span>
       
   508             <span class="o">}</span>
       
   509 
       
   510             <span class="c">// The ncoding of module id and state takes place in mutiNavigate.</span>
       
   511 <span class="c"></span>            <span class="nx">states</span> <span class="o">=</span> <span class="o">{};</span>
       
   512             <span class="nx">states</span><span class="o">[</span><span class="nx">moduleId</span><span class="o">]</span> <span class="o">=</span> <span class="nx">state</span><span class="o">;</span>
       
   513 
       
   514             <span class="k">return</span> <span class="nx">H</span><span class="o">.</span><span class="nx">multiNavigate</span><span class="o">(</span><span class="nx">states</span><span class="o">);</span>
       
   515         <span class="o">},</span>
       
   516 
       
   517         <span class="c">/**</span>
       
   518 <span class="c">         * Stores a new entry in the browser history by changing the state</span>
       
   519 <span class="c">         * of several registered modules in one atomic operation.</span>
       
   520 <span class="c">         * @method multiNavigate</span>
       
   521 <span class="c">         * @param {object} states Associative array of module-state pairs to set simultaneously.</span>
       
   522 <span class="c">         * @return {boolean} Indicates whether the new state was successfully added to the history.</span>
       
   523 <span class="c">         * @public</span>
       
   524 <span class="c">         */</span>
       
   525         <span class="nx">multiNavigate</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">states</span><span class="o">)</span> <span class="o">{</span>
       
   526             <span class="k">var</span> <span class="nx">newStates</span> <span class="o">=</span> <span class="o">[],</span> <span class="nx">fqstate</span><span class="o">,</span> <span class="nx">globalStateChanged</span> <span class="o">=</span> <span class="kc">false</span><span class="o">;</span>
       
   527 
       
   528             <span class="k">if</span> <span class="o">(!</span><span class="nx">G</span><span class="o">.</span><span class="nx">ready</span><span class="o">)</span> <span class="o">{</span>
       
   529                 <span class="k">return</span> <span class="kc">false</span><span class="o">;</span>
       
   530             <span class="o">}</span>
       
   531 
       
   532             <span class="nx">Y</span><span class="o">.</span><span class="nb">Object</span><span class="o">.</span><span class="nx">each</span><span class="o">(</span><span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">,</span> <span class="k">function</span> <span class="o">(</span><span class="nx">module</span><span class="o">,</span> <span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   533                 <span class="k">var</span> <span class="nx">state</span><span class="o">,</span> <span class="nx">decodedModuleId</span> <span class="o">=</span> <span class="nx">decode</span><span class="o">(</span><span class="nx">moduleId</span><span class="o">);</span>
       
   534 
       
   535                 <span class="k">if</span> <span class="o">(!</span><span class="nx">states</span><span class="o">.</span><span class="nx">hasOwnProperty</span><span class="o">(</span><span class="nx">decodedModuleId</span><span class="o">))</span> <span class="o">{</span>
       
   536                     <span class="c">// The caller did not wish to modify the state of this</span>
       
   537 <span class="c"></span>                    <span class="c">// module. We must however include it in fqstate!</span>
       
   538 <span class="c"></span>                    <span class="nx">state</span> <span class="o">=</span> <span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span><span class="o">;</span>
       
   539                 <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   540                     <span class="nx">state</span> <span class="o">=</span> <span class="nx">encode</span><span class="o">(</span><span class="nx">states</span><span class="o">[</span><span class="nx">decodedModuleId</span><span class="o">]);</span>
       
   541                     <span class="k">if</span> <span class="o">(</span><span class="nx">state</span> <span class="o">!==</span> <span class="nx">module</span><span class="o">.</span><span class="nx">upcomingState</span><span class="o">)</span> <span class="o">{</span>
       
   542                         <span class="nx">module</span><span class="o">.</span><span class="nx">upcomingState</span> <span class="o">=</span> <span class="nx">state</span><span class="o">;</span>
       
   543                         <span class="nx">globalStateChanged</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
       
   544                     <span class="o">}</span>
       
   545                 <span class="o">}</span>
       
   546 
       
   547                 <span class="nx">newStates</span><span class="o">.</span><span class="nx">push</span><span class="o">(</span><span class="nx">moduleId</span> <span class="o">+</span> <span class="s1">&#39;=&#39;</span> <span class="o">+</span> <span class="nx">state</span><span class="o">);</span>
       
   548             <span class="o">});</span>
       
   549 
       
   550             <span class="k">if</span> <span class="o">(!</span><span class="nx">globalStateChanged</span><span class="o">)</span> <span class="o">{</span>
       
   551                 <span class="c">// Nothing changed, so don&#39;t do anything.</span>
       
   552 <span class="c"></span>                <span class="k">return</span> <span class="kc">false</span><span class="o">;</span>
       
   553             <span class="o">}</span>
       
   554 
       
   555             <span class="nx">fqstate</span> <span class="o">=</span> <span class="nx">newStates</span><span class="o">.</span><span class="nx">join</span><span class="o">(</span><span class="s1">&#39;&amp;&#39;</span><span class="o">);</span>
       
   556 
       
   557             <span class="k">if</span> <span class="o">(</span><span class="nx">_useIFrame</span><span class="o">)</span> <span class="o">{</span>
       
   558                 <span class="k">return</span> <span class="nx">_updateIFrame</span><span class="o">(</span><span class="nx">fqstate</span><span class="o">);</span>
       
   559             <span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
       
   560                 <span class="nx">win</span><span class="o">.</span><span class="nx">location</span><span class="o">.</span><span class="nx">hash</span> <span class="o">=</span> <span class="nx">fqstate</span><span class="o">;</span>
       
   561                 <span class="k">return</span> <span class="kc">true</span><span class="o">;</span>
       
   562             <span class="o">}</span>
       
   563         <span class="o">},</span>
       
   564 
       
   565         <span class="c">/**</span>
       
   566 <span class="c">         * Returns the current state of the specified module.</span>
       
   567 <span class="c">         * @method getCurrentState</span>
       
   568 <span class="c">         * @param {string} moduleId Non-empty string representing your module.</span>
       
   569 <span class="c">         * @return {string} The current state of the specified module.</span>
       
   570 <span class="c">         * @public</span>
       
   571 <span class="c">         */</span>
       
   572         <span class="nx">getCurrentState</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   573             <span class="k">var</span> <span class="nx">module</span><span class="o">;</span>
       
   574 
       
   575             <span class="k">if</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><span class="nx">moduleId</span><span class="o">))</span> <span class="o">{</span>
       
   576                 <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="nx">E_MISSING_OR_INVALID_ARG</span><span class="o">);</span>
       
   577             <span class="o">}</span>
       
   578 
       
   579             <span class="k">if</span> <span class="o">(!</span><span class="nx">G</span><span class="o">.</span><span class="nx">ready</span><span class="o">)</span> <span class="o">{</span>
       
   580                 <span class="k">return</span> <span class="kc">null</span><span class="o">;</span>
       
   581             <span class="o">}</span>
       
   582 
       
   583             <span class="nx">moduleId</span> <span class="o">=</span> <span class="nx">encode</span><span class="o">(</span><span class="nx">moduleId</span><span class="o">);</span>
       
   584             <span class="nx">module</span> <span class="o">=</span> <span class="nx">G</span><span class="o">.</span><span class="nx">_modules</span><span class="o">[</span><span class="nx">moduleId</span><span class="o">];</span>
       
   585             <span class="k">if</span> <span class="o">(!</span><span class="nx">module</span><span class="o">)</span> <span class="o">{</span>
       
   586                 <span class="k">return</span> <span class="kc">null</span><span class="o">;</span>
       
   587             <span class="o">}</span>
       
   588 
       
   589             <span class="k">return</span> <span class="nx">decode</span><span class="o">(</span><span class="nx">module</span><span class="o">.</span><span class="nx">currentState</span><span class="o">);</span>
       
   590         <span class="o">},</span>
       
   591 
       
   592         <span class="c">/**</span>
       
   593 <span class="c">         * Returns the state of a module according to the URL fragment</span>
       
   594 <span class="c">         * identifier. This method is useful to initialize your modules</span>
       
   595 <span class="c">         * if your application was bookmarked from a particular state.</span>
       
   596 <span class="c">         * @method getBookmarkedState</span>
       
   597 <span class="c">         * @param {string} moduleId Non-empty string representing your module.</span>
       
   598 <span class="c">         * @return {string} The bookmarked state of the specified module.</span>
       
   599 <span class="c">         * @public</span>
       
   600 <span class="c">         */</span>
       
   601         <span class="nx">getBookmarkedState</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   602             <span class="k">var</span> <span class="nx">m</span><span class="o">,</span> <span class="nx">i</span><span class="o">,</span> <span class="nx">h</span><span class="o">;</span>
       
   603 
       
   604             <span class="k">if</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><span class="nx">moduleId</span><span class="o">))</span> <span class="o">{</span>
       
   605                 <span class="k">throw</span> <span class="k">new</span> <span class="nb">Error</span><span class="o">(</span><span class="nx">E_MISSING_OR_INVALID_ARG</span><span class="o">);</span>
       
   606             <span class="o">}</span>
       
   607 
       
   608             <span class="nx">moduleId</span> <span class="o">=</span> <span class="nx">encode</span><span class="o">(</span><span class="nx">moduleId</span><span class="o">);</span>
       
   609 
       
   610             <span class="c">// Use location.href instead of location.hash which is already</span>
       
   611 <span class="c"></span>            <span class="c">// URL-decoded, which creates problems if the state value</span>
       
   612 <span class="c"></span>            <span class="c">// contained special characters...</span>
       
   613 <span class="c"></span>            <span class="nx">h</span> <span class="o">=</span> <span class="nx">win</span><span class="o">.</span><span class="nx">location</span><span class="o">.</span><span class="nx">href</span><span class="o">;</span>
       
   614             <span class="nx">i</span> <span class="o">=</span> <span class="nx">h</span><span class="o">.</span><span class="nx">indexOf</span><span class="o">(</span><span class="s1">&#39;#&#39;</span><span class="o">);</span>
       
   615 
       
   616             <span class="k">if</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>
       
   617                 <span class="nx">h</span> <span class="o">=</span> <span class="nx">h</span><span class="o">.</span><span class="nx">substr</span><span class="o">(</span><span class="nx">i</span> <span class="o">+</span> <span class="m">1</span><span class="o">);</span>
       
   618                 <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">lastIndex</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   619                 <span class="k">while</span> <span class="o">((</span><span class="nx">m</span> <span class="o">=</span> <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">exec</span><span class="o">(</span><span class="nx">h</span><span class="o">)))</span> <span class="o">{</span>
       
   620                     <span class="k">if</span> <span class="o">(</span><span class="nx">m</span><span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">===</span> <span class="nx">moduleId</span><span class="o">)</span> <span class="o">{</span>
       
   621                         <span class="k">return</span> <span class="nx">decode</span><span class="o">(</span><span class="nx">m</span><span class="o">[</span><span class="m">2</span><span class="o">]);</span>
       
   622                     <span class="o">}</span>
       
   623                 <span class="o">}</span>
       
   624             <span class="o">}</span>
       
   625 
       
   626             <span class="k">return</span> <span class="kc">null</span><span class="o">;</span>
       
   627         <span class="o">},</span>
       
   628 
       
   629         <span class="c">/**</span>
       
   630 <span class="c">         * Returns the value of the specified query string parameter.</span>
       
   631 <span class="c">         * This method is not used internally by the Browser History Manager.</span>
       
   632 <span class="c">         * However, it is provided here as a helper since many applications</span>
       
   633 <span class="c">         * using the Browser History Manager will want to read the value of</span>
       
   634 <span class="c">         * url parameters to initialize themselves.</span>
       
   635 <span class="c">         * @method getQueryStringParameter</span>
       
   636 <span class="c">         * @param {string} paramName Name of the parameter we want to look up.</span>
       
   637 <span class="c">         * @param {string} queryString Optional URL to look at. If not specified,</span>
       
   638 <span class="c">         *     this method uses the URL in the address bar.</span>
       
   639 <span class="c">         * @return {string} The value of the specified parameter, or null.</span>
       
   640 <span class="c">         * @public</span>
       
   641 <span class="c">         */</span>
       
   642         <span class="nx">getQueryStringParameter</span><span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">paramName</span><span class="o">,</span> <span class="nx">url</span><span class="o">)</span> <span class="o">{</span>
       
   643             <span class="k">var</span> <span class="nx">m</span><span class="o">,</span> <span class="nx">q</span><span class="o">,</span> <span class="nx">i</span><span class="o">;</span>
       
   644 
       
   645             <span class="nx">url</span> <span class="o">=</span> <span class="nx">url</span> <span class="o">||</span> <span class="nx">win</span><span class="o">.</span><span class="nx">location</span><span class="o">.</span><span class="nx">href</span><span class="o">;</span>
       
   646 
       
   647             <span class="nx">i</span> <span class="o">=</span> <span class="nx">url</span><span class="o">.</span><span class="nx">indexOf</span><span class="o">(</span><span class="s1">&#39;?&#39;</span><span class="o">);</span>
       
   648             <span class="nx">q</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="nx">url</span><span class="o">.</span><span class="nx">substr</span><span class="o">(</span><span class="nx">i</span> <span class="o">+</span> <span class="m">1</span><span class="o">)</span> <span class="o">:</span> <span class="nx">url</span><span class="o">;</span>
       
   649 
       
   650             <span class="c">// Remove the hash if any</span>
       
   651 <span class="c"></span>            <span class="nx">i</span> <span class="o">=</span> <span class="nx">q</span><span class="o">.</span><span class="nx">lastIndexOf</span><span class="o">(</span><span class="s1">&#39;#&#39;</span><span class="o">);</span>
       
   652             <span class="nx">q</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="nx">q</span><span class="o">.</span><span class="nx">substr</span><span class="o">(</span><span class="m">0</span><span class="o">,</span> <span class="nx">i</span><span class="o">)</span> <span class="o">:</span> <span class="nx">q</span><span class="o">;</span>
       
   653 
       
   654             <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">lastIndex</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
       
   655             <span class="k">while</span> <span class="o">((</span><span class="nx">m</span> <span class="o">=</span> <span class="nx">REGEXP</span><span class="o">.</span><span class="nx">exec</span><span class="o">(</span><span class="nx">q</span><span class="o">)))</span> <span class="o">{</span>
       
   656                 <span class="k">if</span> <span class="o">(</span><span class="nx">m</span><span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">===</span> <span class="nx">paramName</span><span class="o">)</span> <span class="o">{</span>
       
   657                     <span class="k">return</span> <span class="nx">decode</span><span class="o">(</span><span class="nx">m</span><span class="o">[</span><span class="m">2</span><span class="o">]);</span>
       
   658                 <span class="o">}</span>
       
   659             <span class="o">}</span>
       
   660 
       
   661             <span class="k">return</span> <span class="kc">null</span><span class="o">;</span>
       
   662         <span class="o">}</span>
       
   663     <span class="o">};</span>
       
   664 
       
   665 
       
   666     <span class="c">// Make Y.History an event target</span>
       
   667 <span class="c"></span>    <span class="nx">Y</span><span class="o">.</span><span class="nx">mix</span><span class="o">(</span><span class="nx">H</span><span class="o">,</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Event</span><span class="o">.</span><span class="nx">Target</span><span class="o">.</span><span class="nx">prototype</span><span class="o">);</span>
       
   668     <span class="nx">Y</span><span class="o">.</span><span class="nx">Event</span><span class="o">.</span><span class="nx">Target</span><span class="o">.</span><span class="nx">call</span><span class="o">(</span><span class="nx">H</span><span class="o">);</span>
       
   669 
       
   670 
       
   671     <span class="c">/**</span>
       
   672 <span class="c">     * This class represents a browser history module.</span>
       
   673 <span class="c">     * @class History.Module</span>
       
   674 <span class="c">     * @constructor</span>
       
   675 <span class="c">     * @param id {String} the module identifier</span>
       
   676 <span class="c">     * @param initialState {String} the module&#39;s initial state</span>
       
   677 <span class="c">     */</span>
       
   678     <span class="nx">H</span><span class="o">.</span><span class="nx">Module</span> <span class="o">=</span> <span class="k">function</span> <span class="o">(</span><span class="nx">id</span><span class="o">,</span> <span class="nx">initialState</span><span class="o">)</span> <span class="o">{</span>
       
   679 
       
   680         <span class="nx">Y</span><span class="o">.</span><span class="nx">Event</span><span class="o">.</span><span class="nx">Target</span><span class="o">.</span><span class="nx">call</span><span class="o">(</span><span class="k">this</span><span class="o">);</span>
       
   681 
       
   682         <span class="c">/**</span>
       
   683 <span class="c">         * The module identifier</span>
       
   684 <span class="c">         * @type String</span>
       
   685 <span class="c">         * @final</span>
       
   686 <span class="c">         */</span>
       
   687         <span class="k">this</span><span class="o">.</span><span class="nx">id</span> <span class="o">=</span> <span class="nx">id</span><span class="o">;</span>
       
   688 
       
   689         <span class="c">/**</span>
       
   690 <span class="c">         * The module&#39;s initial state</span>
       
   691 <span class="c">         * @type String</span>
       
   692 <span class="c">         * @final</span>
       
   693 <span class="c">         */</span>
       
   694         <span class="k">this</span><span class="o">.</span><span class="nx">initialState</span> <span class="o">=</span> <span class="nx">initialState</span><span class="o">;</span>
       
   695 
       
   696         <span class="c">/**</span>
       
   697 <span class="c">         * The module&#39;s current state</span>
       
   698 <span class="c">         * @type String</span>
       
   699 <span class="c">         * @final</span>
       
   700 <span class="c">         */</span>
       
   701         <span class="k">this</span><span class="o">.</span><span class="nx">currentState</span> <span class="o">=</span> <span class="nx">initialState</span><span class="o">;</span>
       
   702 
       
   703         <span class="c">/**</span>
       
   704 <span class="c">         * The module&#39;s upcoming state. There can be a slight delay between the</span>
       
   705 <span class="c">         * time a state is changed, and the time a state change is detected.</span>
       
   706 <span class="c">         * This property allows us to not fire the module state changed event</span>
       
   707 <span class="c">         * multiple times, making client code simpler.</span>
       
   708 <span class="c">         * @type String</span>
       
   709 <span class="c">         * @private</span>
       
   710 <span class="c">         * @final</span>
       
   711 <span class="c">         */</span>
       
   712         <span class="k">this</span><span class="o">.</span><span class="nx">upcomingState</span> <span class="o">=</span> <span class="nx">initialState</span><span class="o">;</span>
       
   713     <span class="o">};</span>
       
   714 
       
   715     <span class="nx">Y</span><span class="o">.</span><span class="nx">mix</span><span class="o">(</span><span class="nx">H</span><span class="o">.</span><span class="nx">Module</span><span class="o">,</span> <span class="nx">Y</span><span class="o">.</span><span class="nx">Event</span><span class="o">.</span><span class="nx">Target</span><span class="o">,</span> <span class="kc">false</span><span class="o">,</span> <span class="kc">null</span><span class="o">,</span> <span class="m">1</span><span class="o">);</span>
       
   716 
       
   717     <span class="nx">Y</span><span class="o">.</span><span class="nx">History</span> <span class="o">=</span> <span class="nx">H</span><span class="o">;</span>
       
   718 </pre></div>
       
   719 
       
   720                     </div>
       
   721 			</div>
       
   722 		</div>
       
   723 		<div class="yui-b">
       
   724             <div class="nav">
       
   725 
       
   726                     <div id="moduleList" class="module">
       
   727                         <h4>Modules</h4>
       
   728                         <ul class="content">
       
   729                                 <li class=""><a href="module_anim.html" title="anim">anim</a></li>
       
   730                                 <li class=""><a href="module_async-queue.html" title="async-queue">async-queue</a></li>
       
   731                                 <li class=""><a href="module_attribute.html" title="attribute">attribute</a></li>
       
   732                                 <li class=""><a href="module_base.html" title="base">base</a></li>
       
   733                                 <li class=""><a href="module_cache.html" title="cache">cache</a></li>
       
   734                                 <li class=""><a href="module_classnamemanager.html" title="classnamemanager">classnamemanager</a></li>
       
   735                                 <li class=""><a href="module_collection.html" title="collection">collection</a></li>
       
   736                                 <li class=""><a href="module_console.html" title="console">console</a></li>
       
   737                                 <li class=""><a href="module_console-filters.html" title="console-filters">console-filters</a></li>
       
   738                                 <li class=""><a href="module_cookie.html" title="cookie">cookie</a></li>
       
   739                                 <li class=""><a href="module_dataschema.html" title="dataschema">dataschema</a></li>
       
   740                                 <li class=""><a href="module_datasource.html" title="datasource">datasource</a></li>
       
   741                                 <li class=""><a href="module_datatype.html" title="datatype">datatype</a></li>
       
   742                                 <li class=""><a href="module_dd.html" title="dd">dd</a></li>
       
   743                                 <li class=""><a href="module_dom.html" title="dom">dom</a></li>
       
   744                                 <li class=""><a href="module_dump.html" title="dump">dump</a></li>
       
   745                                 <li class=""><a href="module_event.html" title="event">event</a></li>
       
   746                                 <li class=""><a href="module_event-custom.html" title="event-custom">event-custom</a></li>
       
   747                                 <li class=""><a href="module_event-simulate.html" title="event-simulate">event-simulate</a></li>
       
   748                                 <li class="selected"><a href="module_history.html" title="history">history</a></li>
       
   749                                 <li class=""><a href="module_imageloader.html" title="imageloader">imageloader</a></li>
       
   750                                 <li class=""><a href="module_io.html" title="io">io</a></li>
       
   751                                 <li class=""><a href="module_json.html" title="json">json</a></li>
       
   752                                 <li class=""><a href="module_node.html" title="node">node</a></li>
       
   753                                 <li class=""><a href="module_node-focusmanager.html" title="node-focusmanager">node-focusmanager</a></li>
       
   754                                 <li class=""><a href="module_node-menunav.html" title="node-menunav">node-menunav</a></li>
       
   755                                 <li class=""><a href="module_oop.html" title="oop">oop</a></li>
       
   756                                 <li class=""><a href="module_overlay.html" title="overlay">overlay</a></li>
       
   757                                 <li class=""><a href="module_plugin.html" title="plugin">plugin</a></li>
       
   758                                 <li class=""><a href="module_profiler.html" title="profiler">profiler</a></li>
       
   759                                 <li class=""><a href="module_queue-promote.html" title="queue-promote">queue-promote</a></li>
       
   760                                 <li class=""><a href="module_slider.html" title="slider">slider</a></li>
       
   761                                 <li class=""><a href="module_stylesheet.html" title="stylesheet">stylesheet</a></li>
       
   762                                 <li class=""><a href="module_substitute.html" title="substitute">substitute</a></li>
       
   763                                 <li class=""><a href="module_test.html" title="test">test</a></li>
       
   764                                 <li class=""><a href="module_widget.html" title="widget">widget</a></li>
       
   765                                 <li class=""><a href="module_widget-position.html" title="widget-position">widget-position</a></li>
       
   766                                 <li class=""><a href="module_widget-position-ext.html" title="widget-position-ext">widget-position-ext</a></li>
       
   767                                 <li class=""><a href="module_widget-stack.html" title="widget-stack">widget-stack</a></li>
       
   768                                 <li class=""><a href="module_widget-stdmod.html" title="widget-stdmod">widget-stdmod</a></li>
       
   769                                 <li class=""><a href="module_yui.html" title="yui">yui</a></li>
       
   770                         </ul>
       
   771                     </div>
       
   772 
       
   773                     <div id="classList" class="module">
       
   774                         <h4>Classes</h4>
       
   775                         <ul class="content">
       
   776                                 <li class=""><a href="History.html" title="History">History</a></li>
       
   777                                 <li class=""><a href="History.Module.html" title="History.Module">History.Module</a></li>
       
   778                         </ul>
       
   779                     </div>
       
   780 
       
   781                     <div id="fileList" class="module">
       
   782                         <h4>Files</h4>
       
   783                         <ul class="content">        
       
   784                                 <li class="selected"><a href="history.js.html" title="history.js">history.js</a></li>
       
   785                         </ul>
       
   786                     </div>
       
   787 
       
   788 
       
   789 
       
   790 
       
   791 
       
   792             </div>
       
   793 		</div>
       
   794 	</div>
       
   795 	<div id="ft">
       
   796         <hr />
       
   797         Copyright &copy; 2009 Yahoo! Inc. All rights reserved.
       
   798 	</div>
       
   799 </div>
       
   800 <script type="text/javascript">
       
   801     ALL_YUI_PROPS = [{"access": "private", "host": "History", "name": "_checkIframeLoaded", "url": "History.html#method__checkIframeLoaded", "type": "method"}, {"access": "", "host": "History.Module", "name": "currentState", "url": "History.Module.html#property_currentState", "type": "property"}, {"access": "", "host": "History", "name": "getBookmarkedState", "url": "History.html#method_getBookmarkedState", "type": "method"}, {"access": "", "host": "History", "name": "getCurrentState", "url": "History.html#method_getCurrentState", "type": "method"}, {"access": "private", "host": "History", "name": "_getHash", "url": "History.html#method__getHash", "type": "method"}, {"access": "", "host": "History", "name": "getQueryStringParameter", "url": "History.html#method_getQueryStringParameter", "type": "method"}, {"access": "private", "host": "History", "name": "_handleFQStateChange", "url": "History.html#method__handleFQStateChange", "type": "method"}, {"access": "", "host": "History", "name": "history:globalStateChange", "url": "History.html#event_history:globalStateChange", "type": "event"}, {"access": "", "host": "History", "name": "history:moduleStateChange", "url": "History.html#event_history:moduleStateChange", "type": "event"}, {"access": "", "host": "History", "name": "history:ready", "url": "History.html#event_history:ready", "type": "event"}, {"access": "", "host": "History.Module", "name": "id", "url": "History.Module.html#property_id", "type": "property"}, {"access": "private", "host": "History", "name": "_initialize", "url": "History.html#method__initialize", "type": "method"}, {"access": "", "host": "History", "name": "initialize", "url": "History.html#method_initialize", "type": "method"}, {"access": "", "host": "History.Module", "name": "initialState", "url": "History.Module.html#property_initialState", "type": "property"}, {"access": "", "host": "History", "name": "multiNavigate", "url": "History.html#method_multiNavigate", "type": "method"}, {"access": "", "host": "History", "name": "navigate", "url": "History.html#method_navigate", "type": "method"}, {"access": "", "host": "History", "name": "register", "url": "History.html#method_register", "type": "method"}, {"access": "private", "host": "History", "name": "_storeStates", "url": "History.html#method__storeStates", "type": "method"}, {"access": "private", "host": "History.Module", "name": "upcomingState", "url": "History.Module.html#property_upcomingState", "type": "property"}, {"access": "private", "host": "History", "name": "_updateIFrame", "url": "History.html#method__updateIFrame", "type": "method"}];
       
   802 </script>
       
   803 </body>
       
   804 </html>