551 lines
48 KiB
HTML
551 lines
48 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>API: calendar DateMath.js (YUI Library)</title>
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<link rel="stylesheet" type="text/css" href="assets/api.css">
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<script type="text/javascript" src="assets/api-js"></script>
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<script type="text/javascript" src="assets/ac-js"></script>
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</head>
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<body id="yahoo-com">
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<div id="doc3" class="yui-t2">
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<div id="hd">
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<a href="http://developer.yahoo.com/yui/"><h1>Yahoo! UI Library</h1></a>
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<h3>Calendar <span class="subtitle">2.5.1</span></h3>
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<p>
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<a href="./index.html">Yahoo! UI Library</a>
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> <a href="./module_calendar.html">calendar</a>
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> DateMath.js (source view)
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</p>
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</div>
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<div id="bd">
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<div id="yui-main">
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<div class="yui-b">
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<form name="yui-classopts-form">
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<span id="classopts"><input type="checkbox" name="showprivate" id="showprivate" /> Show Private</span>
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<span id="classopts"><input type="checkbox" name="showprotected" id="showprotected" /> Show Protected</span>
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</form>
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<div id="srcout">
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<style>
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#doc3 #classopts { display:none; }
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</style>
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<div class="highlight" ><pre><span class="c">/**</span>
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<span class="c">* YAHOO.widget.DateMath is used for simple date manipulation. The class is a static utility</span>
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<span class="c">* used for adding, subtracting, and comparing dates.</span>
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<span class="c">* @namespace YAHOO.widget</span>
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<span class="c">* @class DateMath</span>
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<span class="c">*/</span>
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<span class="nx">YAHOO</span><span class="o">.</span><span class="nx">widget</span><span class="o">.</span><span class="nx">DateMath</span> <span class="o">=</span> <span class="o">{</span>
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<span class="c">/**</span>
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<span class="c"> * Constant field representing Day</span>
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<span class="c"> * @property DAY</span>
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<span class="c"> * @static</span>
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<span class="c"> * @final</span>
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<span class="c"> * @type String</span>
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<span class="c"> */</span>
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<span class="nx">DAY</span> <span class="o">:</span> <span class="s2">"D"</span><span class="o">,</span>
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<span class="c">/**</span>
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<span class="c"> * Constant field representing Week</span>
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<span class="c"> * @property WEEK</span>
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<span class="c"> * @static</span>
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<span class="c"> * @final</span>
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<span class="c"> * @type String</span>
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<span class="c"> */</span>
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<span class="nx">WEEK</span> <span class="o">:</span> <span class="s2">"W"</span><span class="o">,</span>
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<span class="c">/**</span>
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<span class="c"> * Constant field representing Year</span>
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<span class="c"> * @property YEAR</span>
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<span class="c"> * @static</span>
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<span class="c"> * @final</span>
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<span class="c"> * @type String</span>
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<span class="c"> */</span>
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<span class="nx">YEAR</span> <span class="o">:</span> <span class="s2">"Y"</span><span class="o">,</span>
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<span class="c">/**</span>
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<span class="c"> * Constant field representing Month</span>
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<span class="c"> * @property MONTH</span>
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<span class="c"> * @static</span>
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<span class="c"> * @final</span>
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<span class="c"> * @type String</span>
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<span class="c"> */</span>
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<span class="nx">MONTH</span> <span class="o">:</span> <span class="s2">"M"</span><span class="o">,</span>
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<span class="c">/**</span>
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<span class="c"> * Constant field representing one day, in milliseconds</span>
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<span class="c"> * @property ONE_DAY_MS</span>
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<span class="c"> * @static</span>
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<span class="c"> * @final</span>
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<span class="c"> * @type Number</span>
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<span class="c"> */</span>
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<span class="nx">ONE_DAY_MS</span> <span class="o">:</span> <span class="m">1000</span><span class="o">*</span><span class="m">60</span><span class="o">*</span><span class="m">60</span><span class="o">*</span><span class="m">24</span><span class="o">,</span>
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<span class="c">/**</span>
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<span class="c"> * Constant field representing the date in first week of January</span>
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<span class="c"> * which identifies the first week of the year.</span>
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<span class="c"> * <p></span>
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<span class="c"> * In the U.S, Jan 1st is normally used based on a Sunday start of week.</span>
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<span class="c"> * ISO 8601, used widely throughout Europe, uses Jan 4th, based on a Monday start of week.</span>
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<span class="c"> * </p></span>
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<span class="c"> * @property WEEK_ONE_JAN_DATE</span>
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<span class="c"> * @static</span>
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<span class="c"> * @type Number</span>
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<span class="c"> */</span>
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<span class="nx">WEEK_ONE_JAN_DATE</span> <span class="o">:</span> <span class="m">1</span><span class="o">,</span>
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<span class="c">/**</span>
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<span class="c"> * Adds the specified amount of time to the this instance.</span>
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<span class="c"> * @method add</span>
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<span class="c"> * @param {Date} date The JavaScript Date object to perform addition on</span>
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<span class="c"> * @param {String} field The field constant to be used for performing addition.</span>
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<span class="c"> * @param {Number} amount The number of units (measured in the field constant) to add to the date.</span>
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<span class="c"> * @return {Date} The resulting Date object</span>
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<span class="c"> */</span>
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<span class="nx">add</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">field</span><span class="o">,</span> <span class="nx">amount</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">var</span> <span class="nx">d</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Date</span><span class="o">(</span><span class="nx">date</span><span class="o">.</span><span class="nx">getTime</span><span class="o">());</span>
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<span class="nx">switch</span> <span class="o">(</span><span class="nx">field</span><span class="o">)</span> <span class="o">{</span>
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<span class="nx">case</span> <span class="k">this</span><span class="o">.</span><span class="nx">MONTH</span><span class="o">:</span>
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<span class="k">var</span> <span class="nx">newMonth</span> <span class="o">=</span> <span class="nx">date</span><span class="o">.</span><span class="nx">getMonth</span><span class="o">()</span> <span class="o">+</span> <span class="nx">amount</span><span class="o">;</span>
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<span class="k">var</span> <span class="nx">years</span> <span class="o">=</span> <span class="m">0</span><span class="o">;</span>
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<span class="k">if</span> <span class="o">(</span><span class="nx">newMonth</span> <span class="o"><</span> <span class="m">0</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">while</span> <span class="o">(</span><span class="nx">newMonth</span> <span class="o"><</span> <span class="m">0</span><span class="o">)</span> <span class="o">{</span>
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<span class="nx">newMonth</span> <span class="o">+=</span> <span class="m">12</span><span class="o">;</span>
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<span class="nx">years</span> <span class="o">-=</span> <span class="m">1</span><span class="o">;</span>
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<span class="o">}</span>
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<span class="o">}</span> <span class="k">else</span> <span class="k">if</span> <span class="o">(</span><span class="nx">newMonth</span> <span class="o">></span> <span class="m">11</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">while</span> <span class="o">(</span><span class="nx">newMonth</span> <span class="o">></span> <span class="m">11</span><span class="o">)</span> <span class="o">{</span>
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<span class="nx">newMonth</span> <span class="o">-=</span> <span class="m">12</span><span class="o">;</span>
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<span class="nx">years</span> <span class="o">+=</span> <span class="m">1</span><span class="o">;</span>
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<span class="o">}</span>
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<span class="o">}</span>
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<span class="nx">d</span><span class="o">.</span><span class="nx">setMonth</span><span class="o">(</span><span class="nx">newMonth</span><span class="o">);</span>
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<span class="nx">d</span><span class="o">.</span><span class="nx">setFullYear</span><span class="o">(</span><span class="nx">date</span><span class="o">.</span><span class="nx">getFullYear</span><span class="o">()</span> <span class="o">+</span> <span class="nx">years</span><span class="o">);</span>
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<span class="k">break</span><span class="o">;</span>
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<span class="nx">case</span> <span class="k">this</span><span class="o">.</span><span class="nx">DAY</span><span class="o">:</span>
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<span class="k">this</span><span class="o">.</span><span class="nx">_addDays</span><span class="o">(</span><span class="nx">d</span><span class="o">,</span> <span class="nx">amount</span><span class="o">);</span>
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<span class="c">// d.setDate(date.getDate() + amount);</span>
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<span class="c"></span> <span class="k">break</span><span class="o">;</span>
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<span class="nx">case</span> <span class="k">this</span><span class="o">.</span><span class="nx">YEAR</span><span class="o">:</span>
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<span class="nx">d</span><span class="o">.</span><span class="nx">setFullYear</span><span class="o">(</span><span class="nx">date</span><span class="o">.</span><span class="nx">getFullYear</span><span class="o">()</span> <span class="o">+</span> <span class="nx">amount</span><span class="o">);</span>
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<span class="k">break</span><span class="o">;</span>
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<span class="nx">case</span> <span class="k">this</span><span class="o">.</span><span class="nx">WEEK</span><span class="o">:</span>
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<span class="k">this</span><span class="o">.</span><span class="nx">_addDays</span><span class="o">(</span><span class="nx">d</span><span class="o">,</span> <span class="o">(</span><span class="nx">amount</span> <span class="o">*</span> <span class="m">7</span><span class="o">));</span>
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<span class="c">// d.setDate(date.getDate() + (amount * 7));</span>
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<span class="c"></span> <span class="k">break</span><span class="o">;</span>
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<span class="o">}</span>
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<span class="k">return</span> <span class="nx">d</span><span class="o">;</span>
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<span class="o">},</span>
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<span class="c">/**</span>
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<span class="c"> * Private helper method to account for bug in Safari 2 (webkit < 420)</span>
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<span class="c"> * when Date.setDate(n) is called with n less than -128 or greater than 127.</span>
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<span class="c"> * <p></span>
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<span class="c"> * Fix approach and original findings are available here:</span>
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<span class="c"> * http://brianary.blogspot.com/2006/03/safari-date-bug.html</span>
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<span class="c"> * </p></span>
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<span class="c"> * @method _addDays</span>
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<span class="c"> * @param {Date} d JavaScript date object</span>
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<span class="c"> * @param {Number} nDays The number of days to add to the date object (can be negative)</span>
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<span class="c"> * @private</span>
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<span class="c"> */</span>
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<span class="nx">_addDays</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">d</span><span class="o">,</span> <span class="nx">nDays</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">if</span> <span class="o">(</span><span class="nx">YAHOO</span><span class="o">.</span><span class="nx">env</span><span class="o">.</span><span class="nx">ua</span><span class="o">.</span><span class="nx">webkit</span> <span class="o">&&</span> <span class="nx">YAHOO</span><span class="o">.</span><span class="nx">env</span><span class="o">.</span><span class="nx">ua</span><span class="o">.</span><span class="nx">webkit</span> <span class="o"><</span> <span class="m">420</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">if</span> <span class="o">(</span><span class="nx">nDays</span> <span class="o"><</span> <span class="m">0</span><span class="o">)</span> <span class="o">{</span>
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<span class="c">// Ensure we don't go below -128 (getDate() is always 1 to 31, so we won't go above 127)</span>
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<span class="c"></span> <span class="k">for</span><span class="o">(</span><span class="k">var</span> <span class="nx">min</span> <span class="o">=</span> <span class="o">-</span><span class="m">128</span><span class="o">;</span> <span class="nx">nDays</span> <span class="o"><</span> <span class="nx">min</span><span class="o">;</span> <span class="nx">nDays</span> <span class="o">-=</span> <span class="nx">min</span><span class="o">)</span> <span class="o">{</span>
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<span class="nx">d</span><span class="o">.</span><span class="nx">setDate</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getDate</span><span class="o">()</span> <span class="o">+</span> <span class="nx">min</span><span class="o">);</span>
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<span class="o">}</span>
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<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
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<span class="c">// Ensure we don't go above 96 + 31 = 127</span>
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<span class="c"></span> <span class="k">for</span><span class="o">(</span><span class="k">var</span> <span class="nx">max</span> <span class="o">=</span> <span class="m">96</span><span class="o">;</span> <span class="nx">nDays</span> <span class="o">></span> <span class="nx">max</span><span class="o">;</span> <span class="nx">nDays</span> <span class="o">-=</span> <span class="nx">max</span><span class="o">)</span> <span class="o">{</span>
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<span class="nx">d</span><span class="o">.</span><span class="nx">setDate</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getDate</span><span class="o">()</span> <span class="o">+</span> <span class="nx">max</span><span class="o">);</span>
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<span class="o">}</span>
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<span class="o">}</span>
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<span class="c">// nDays should be remainder between -128 and 96</span>
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<span class="c"></span> <span class="o">}</span>
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<span class="nx">d</span><span class="o">.</span><span class="nx">setDate</span><span class="o">(</span><span class="nx">d</span><span class="o">.</span><span class="nx">getDate</span><span class="o">()</span> <span class="o">+</span> <span class="nx">nDays</span><span class="o">);</span>
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<span class="o">},</span>
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<span class="c">/**</span>
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<span class="c"> * Subtracts the specified amount of time from the this instance.</span>
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<span class="c"> * @method subtract</span>
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<span class="c"> * @param {Date} date The JavaScript Date object to perform subtraction on</span>
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<span class="c"> * @param {Number} field The this field constant to be used for performing subtraction.</span>
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<span class="c"> * @param {Number} amount The number of units (measured in the field constant) to subtract from the date.</span>
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<span class="c"> * @return {Date} The resulting Date object</span>
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<span class="c"> */</span>
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<span class="nx">subtract</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">field</span><span class="o">,</span> <span class="nx">amount</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="nx">add</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">field</span><span class="o">,</span> <span class="o">(</span><span class="nx">amount</span><span class="o">*-</span><span class="m">1</span><span class="o">));</span>
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<span class="o">},</span>
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<span class="c">/**</span>
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<span class="c"> * Determines whether a given date is before another date on the calendar.</span>
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<span class="c"> * @method before</span>
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<span class="c"> * @param {Date} date The Date object to compare with the compare argument</span>
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<span class="c"> * @param {Date} compareTo The Date object to use for the comparison</span>
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<span class="c"> * @return {Boolean} true if the date occurs before the compared date; false if not.</span>
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<span class="c"> */</span>
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<span class="nx">before</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">compareTo</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">var</span> <span class="nx">ms</span> <span class="o">=</span> <span class="nx">compareTo</span><span class="o">.</span><span class="nx">getTime</span><span class="o">();</span>
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<span class="k">if</span> <span class="o">(</span><span class="nx">date</span><span class="o">.</span><span class="nx">getTime</span><span class="o">()</span> <span class="o"><</span> <span class="nx">ms</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">return</span> <span class="kc">true</span><span class="o">;</span>
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<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
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<span class="k">return</span> <span class="kc">false</span><span class="o">;</span>
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<span class="o">}</span>
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<span class="o">},</span>
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<span class="c">/**</span>
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<span class="c"> * Determines whether a given date is after another date on the calendar.</span>
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<span class="c"> * @method after</span>
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<span class="c"> * @param {Date} date The Date object to compare with the compare argument</span>
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<span class="c"> * @param {Date} compareTo The Date object to use for the comparison</span>
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<span class="c"> * @return {Boolean} true if the date occurs after the compared date; false if not.</span>
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<span class="c"> */</span>
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<span class="nx">after</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">compareTo</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">var</span> <span class="nx">ms</span> <span class="o">=</span> <span class="nx">compareTo</span><span class="o">.</span><span class="nx">getTime</span><span class="o">();</span>
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<span class="k">if</span> <span class="o">(</span><span class="nx">date</span><span class="o">.</span><span class="nx">getTime</span><span class="o">()</span> <span class="o">></span> <span class="nx">ms</span><span class="o">)</span> <span class="o">{</span>
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<span class="k">return</span> <span class="kc">true</span><span class="o">;</span>
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<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
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<span class="k">return</span> <span class="kc">false</span><span class="o">;</span>
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<span class="o">}</span>
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<span class="o">},</span>
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<span class="c">/**</span>
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<span class="c"> * Determines whether a given date is between two other dates on the calendar.</span>
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<span class="c"> * @method between</span>
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<span class="c"> * @param {Date} date The date to check for</span>
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<span class="c"> * @param {Date} dateBegin The start of the range</span>
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<span class="c"> * @param {Date} dateEnd The end of the range</span>
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<span class="c"> * @return {Boolean} true if the date occurs between the compared dates; false if not.</span>
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<span class="c"> */</span>
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<span class="nx">between</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">dateBegin</span><span class="o">,</span> <span class="nx">dateEnd</span><span class="o">)</span> <span class="o">{</span>
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|
<span class="k">if</span> <span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">after</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">dateBegin</span><span class="o">)</span> <span class="o">&&</span> <span class="k">this</span><span class="o">.</span><span class="nx">before</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">dateEnd</span><span class="o">))</span> <span class="o">{</span>
|
|
<span class="k">return</span> <span class="kc">true</span><span class="o">;</span>
|
|
<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
|
|
<span class="k">return</span> <span class="kc">false</span><span class="o">;</span>
|
|
<span class="o">}</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Retrieves a JavaScript Date object representing January 1 of any given year.</span>
|
|
<span class="c"> * @method getJan1</span>
|
|
<span class="c"> * @param {Number} calendarYear The calendar year for which to retrieve January 1</span>
|
|
<span class="c"> * @return {Date} January 1 of the calendar year specified.</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">getJan1</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">calendarYear</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="nx">getDate</span><span class="o">(</span><span class="nx">calendarYear</span><span class="o">,</span><span class="m">0</span><span class="o">,</span><span class="m">1</span><span class="o">);</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Calculates the number of days the specified date is from January 1 of the specified calendar year.</span>
|
|
<span class="c"> * Passing January 1 to this function would return an offset value of zero.</span>
|
|
<span class="c"> * @method getDayOffset</span>
|
|
<span class="c"> * @param {Date} date The JavaScript date for which to find the offset</span>
|
|
<span class="c"> * @param {Number} calendarYear The calendar year to use for determining the offset</span>
|
|
<span class="c"> * @return {Number} The number of days since January 1 of the given year</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">getDayOffset</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">calendarYear</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="k">var</span> <span class="nx">beginYear</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">getJan1</span><span class="o">(</span><span class="nx">calendarYear</span><span class="o">);</span> <span class="c">// Find the start of the year. This will be in week 1.</span>
|
|
<span class="c"></span>
|
|
<span class="c">// Find the number of days the passed in date is away from the calendar year start</span>
|
|
<span class="c"></span> <span class="k">var</span> <span class="nx">dayOffset</span> <span class="o">=</span> <span class="nb">Math</span><span class="o">.</span><span class="nx">ceil</span><span class="o">((</span><span class="nx">date</span><span class="o">.</span><span class="nx">getTime</span><span class="o">()-</span><span class="nx">beginYear</span><span class="o">.</span><span class="nx">getTime</span><span class="o">())</span> <span class="o">/</span> <span class="k">this</span><span class="o">.</span><span class="nx">ONE_DAY_MS</span><span class="o">);</span>
|
|
<span class="k">return</span> <span class="nx">dayOffset</span><span class="o">;</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Calculates the week number for the given date. Can currently support standard</span>
|
|
<span class="c"> * U.S. week numbers, based on Jan 1st defining the 1st week of the year, and </span>
|
|
<span class="c"> * ISO8601 week numbers, based on Jan 4th defining the 1st week of the year.</span>
|
|
<span class="c"> * </span>
|
|
<span class="c"> * @method getWeekNumber</span>
|
|
<span class="c"> * @param {Date} date The JavaScript date for which to find the week number</span>
|
|
<span class="c"> * @param {Number} firstDayOfWeek The index of the first day of the week (0 = Sun, 1 = Mon ... 6 = Sat).</span>
|
|
<span class="c"> * Defaults to 0</span>
|
|
<span class="c"> * @param {Number} janDate The date in the first week of January which defines week one for the year</span>
|
|
<span class="c"> * Defaults to the value of YAHOO.widget.DateMath.WEEK_ONE_JAN_DATE, which is 1 (Jan 1st). </span>
|
|
<span class="c"> * For the U.S, this is normally Jan 1st. ISO8601 uses Jan 4th to define the first week of the year.</span>
|
|
<span class="c"> * </span>
|
|
<span class="c"> * @return {Number} The number of the week containing the given date.</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">getWeekNumber</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">,</span> <span class="nx">firstDayOfWeek</span><span class="o">,</span> <span class="nx">janDate</span><span class="o">)</span> <span class="o">{</span>
|
|
|
|
<span class="c">// Setup Defaults</span>
|
|
<span class="c"></span> <span class="nx">firstDayOfWeek</span> <span class="o">=</span> <span class="nx">firstDayOfWeek</span> <span class="o">||</span> <span class="m">0</span><span class="o">;</span>
|
|
<span class="nx">janDate</span> <span class="o">=</span> <span class="nx">janDate</span> <span class="o">||</span> <span class="k">this</span><span class="o">.</span><span class="nx">WEEK_ONE_JAN_DATE</span><span class="o">;</span>
|
|
|
|
<span class="k">var</span> <span class="nx">targetDate</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">clearTime</span><span class="o">(</span><span class="nx">date</span><span class="o">),</span>
|
|
<span class="nx">startOfWeek</span><span class="o">,</span>
|
|
<span class="nx">endOfWeek</span><span class="o">;</span>
|
|
|
|
<span class="k">if</span> <span class="o">(</span><span class="nx">targetDate</span><span class="o">.</span><span class="nx">getDay</span><span class="o">()</span> <span class="o">===</span> <span class="nx">firstDayOfWeek</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="nx">startOfWeek</span> <span class="o">=</span> <span class="nx">targetDate</span><span class="o">;</span>
|
|
<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
|
|
<span class="nx">startOfWeek</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">getFirstDayOfWeek</span><span class="o">(</span><span class="nx">targetDate</span><span class="o">,</span> <span class="nx">firstDayOfWeek</span><span class="o">);</span>
|
|
<span class="o">}</span>
|
|
|
|
<span class="k">var</span> <span class="nx">startYear</span> <span class="o">=</span> <span class="nx">startOfWeek</span><span class="o">.</span><span class="nx">getFullYear</span><span class="o">(),</span>
|
|
<span class="nx">startTime</span> <span class="o">=</span> <span class="nx">startOfWeek</span><span class="o">.</span><span class="nx">getTime</span><span class="o">();</span>
|
|
|
|
<span class="c">// DST shouldn't be a problem here, math is quicker than setDate();</span>
|
|
<span class="c"></span> <span class="nx">endOfWeek</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Date</span><span class="o">(</span><span class="nx">startOfWeek</span><span class="o">.</span><span class="nx">getTime</span><span class="o">()</span> <span class="o">+</span> <span class="m">6</span><span class="o">*</span><span class="k">this</span><span class="o">.</span><span class="nx">ONE_DAY_MS</span><span class="o">);</span>
|
|
|
|
<span class="k">var</span> <span class="nx">weekNum</span><span class="o">;</span>
|
|
<span class="k">if</span> <span class="o">(</span><span class="nx">startYear</span> <span class="o">!==</span> <span class="nx">endOfWeek</span><span class="o">.</span><span class="nx">getFullYear</span><span class="o">()</span> <span class="o">&&</span> <span class="nx">endOfWeek</span><span class="o">.</span><span class="nx">getDate</span><span class="o">()</span> <span class="o">>=</span> <span class="nx">janDate</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="c">// If years don't match, endOfWeek is in Jan. and if the </span>
|
|
<span class="c"></span> <span class="c">// week has WEEK_ONE_JAN_DATE in it, it's week one by definition.</span>
|
|
<span class="c"></span> <span class="nx">weekNum</span> <span class="o">=</span> <span class="m">1</span><span class="o">;</span>
|
|
<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
|
|
<span class="c">// Get the 1st day of the 1st week, and </span>
|
|
<span class="c"></span> <span class="c">// find how many days away we are from it.</span>
|
|
<span class="c"></span> <span class="k">var</span> <span class="nx">weekOne</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">clearTime</span><span class="o">(</span><span class="k">this</span><span class="o">.</span><span class="nx">getDate</span><span class="o">(</span><span class="nx">startYear</span><span class="o">,</span> <span class="m">0</span><span class="o">,</span> <span class="nx">janDate</span><span class="o">)),</span>
|
|
<span class="nx">weekOneDayOne</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">getFirstDayOfWeek</span><span class="o">(</span><span class="nx">weekOne</span><span class="o">,</span> <span class="nx">firstDayOfWeek</span><span class="o">);</span>
|
|
|
|
<span class="c">// Round days to smoothen out 1 hr DST diff</span>
|
|
<span class="c"></span> <span class="k">var</span> <span class="nx">daysDiff</span> <span class="o">=</span> <span class="nb">Math</span><span class="o">.</span><span class="nx">round</span><span class="o">((</span><span class="nx">targetDate</span><span class="o">.</span><span class="nx">getTime</span><span class="o">()</span> <span class="o">-</span> <span class="nx">weekOneDayOne</span><span class="o">.</span><span class="nx">getTime</span><span class="o">())/</span><span class="k">this</span><span class="o">.</span><span class="nx">ONE_DAY_MS</span><span class="o">);</span>
|
|
|
|
<span class="c">// Calc. Full Weeks</span>
|
|
<span class="c"></span> <span class="k">var</span> <span class="nx">rem</span> <span class="o">=</span> <span class="nx">daysDiff</span> <span class="o">%</span> <span class="m">7</span><span class="o">;</span>
|
|
<span class="k">var</span> <span class="nx">weeksDiff</span> <span class="o">=</span> <span class="o">(</span><span class="nx">daysDiff</span> <span class="o">-</span> <span class="nx">rem</span><span class="o">)/</span><span class="m">7</span><span class="o">;</span>
|
|
<span class="nx">weekNum</span> <span class="o">=</span> <span class="nx">weeksDiff</span> <span class="o">+</span> <span class="m">1</span><span class="o">;</span>
|
|
<span class="o">}</span>
|
|
<span class="k">return</span> <span class="nx">weekNum</span><span class="o">;</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Get the first day of the week, for the give date. </span>
|
|
<span class="c"> * @param {Date} dt The date in the week for which the first day is required.</span>
|
|
<span class="c"> * @param {Number} startOfWeek The index for the first day of the week, 0 = Sun, 1 = Mon ... 6 = Sat (defaults to 0)</span>
|
|
<span class="c"> * @return {Date} The first day of the week</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">getFirstDayOfWeek</span> <span class="o">:</span> <span class="k">function</span> <span class="o">(</span><span class="nx">dt</span><span class="o">,</span> <span class="nx">startOfWeek</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="nx">startOfWeek</span> <span class="o">=</span> <span class="nx">startOfWeek</span> <span class="o">||</span> <span class="m">0</span><span class="o">;</span>
|
|
<span class="k">var</span> <span class="nx">dayOfWeekIndex</span> <span class="o">=</span> <span class="nx">dt</span><span class="o">.</span><span class="nx">getDay</span><span class="o">(),</span>
|
|
<span class="nx">dayOfWeek</span> <span class="o">=</span> <span class="o">(</span><span class="nx">dayOfWeekIndex</span> <span class="o">-</span> <span class="nx">startOfWeek</span> <span class="o">+</span> <span class="m">7</span><span class="o">)</span> <span class="o">%</span> <span class="m">7</span><span class="o">;</span>
|
|
|
|
<span class="k">return</span> <span class="k">this</span><span class="o">.</span><span class="nx">subtract</span><span class="o">(</span><span class="nx">dt</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">DAY</span><span class="o">,</span> <span class="nx">dayOfWeek</span><span class="o">);</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Determines if a given week overlaps two different years.</span>
|
|
<span class="c"> * @method isYearOverlapWeek</span>
|
|
<span class="c"> * @param {Date} weekBeginDate The JavaScript Date representing the first day of the week.</span>
|
|
<span class="c"> * @return {Boolean} true if the date overlaps two different years.</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">isYearOverlapWeek</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">weekBeginDate</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="k">var</span> <span class="nx">overlaps</span> <span class="o">=</span> <span class="kc">false</span><span class="o">;</span>
|
|
<span class="k">var</span> <span class="nx">nextWeek</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">add</span><span class="o">(</span><span class="nx">weekBeginDate</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">DAY</span><span class="o">,</span> <span class="m">6</span><span class="o">);</span>
|
|
<span class="k">if</span> <span class="o">(</span><span class="nx">nextWeek</span><span class="o">.</span><span class="nx">getFullYear</span><span class="o">()</span> <span class="o">!=</span> <span class="nx">weekBeginDate</span><span class="o">.</span><span class="nx">getFullYear</span><span class="o">())</span> <span class="o">{</span>
|
|
<span class="nx">overlaps</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
|
|
<span class="o">}</span>
|
|
<span class="k">return</span> <span class="nx">overlaps</span><span class="o">;</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Determines if a given week overlaps two different months.</span>
|
|
<span class="c"> * @method isMonthOverlapWeek</span>
|
|
<span class="c"> * @param {Date} weekBeginDate The JavaScript Date representing the first day of the week.</span>
|
|
<span class="c"> * @return {Boolean} true if the date overlaps two different months.</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">isMonthOverlapWeek</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">weekBeginDate</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="k">var</span> <span class="nx">overlaps</span> <span class="o">=</span> <span class="kc">false</span><span class="o">;</span>
|
|
<span class="k">var</span> <span class="nx">nextWeek</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">add</span><span class="o">(</span><span class="nx">weekBeginDate</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">DAY</span><span class="o">,</span> <span class="m">6</span><span class="o">);</span>
|
|
<span class="k">if</span> <span class="o">(</span><span class="nx">nextWeek</span><span class="o">.</span><span class="nx">getMonth</span><span class="o">()</span> <span class="o">!=</span> <span class="nx">weekBeginDate</span><span class="o">.</span><span class="nx">getMonth</span><span class="o">())</span> <span class="o">{</span>
|
|
<span class="nx">overlaps</span> <span class="o">=</span> <span class="kc">true</span><span class="o">;</span>
|
|
<span class="o">}</span>
|
|
<span class="k">return</span> <span class="nx">overlaps</span><span class="o">;</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Gets the first day of a month containing a given date.</span>
|
|
<span class="c"> * @method findMonthStart</span>
|
|
<span class="c"> * @param {Date} date The JavaScript Date used to calculate the month start</span>
|
|
<span class="c"> * @return {Date} The JavaScript Date representing the first day of the month</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">findMonthStart</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="k">var</span> <span class="nx">start</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">getDate</span><span class="o">(</span><span class="nx">date</span><span class="o">.</span><span class="nx">getFullYear</span><span class="o">(),</span> <span class="nx">date</span><span class="o">.</span><span class="nx">getMonth</span><span class="o">(),</span> <span class="m">1</span><span class="o">);</span>
|
|
<span class="k">return</span> <span class="nx">start</span><span class="o">;</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Gets the last day of a month containing a given date.</span>
|
|
<span class="c"> * @method findMonthEnd</span>
|
|
<span class="c"> * @param {Date} date The JavaScript Date used to calculate the month end</span>
|
|
<span class="c"> * @return {Date} The JavaScript Date representing the last day of the month</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">findMonthEnd</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="k">var</span> <span class="nx">start</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">findMonthStart</span><span class="o">(</span><span class="nx">date</span><span class="o">);</span>
|
|
<span class="k">var</span> <span class="nx">nextMonth</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">add</span><span class="o">(</span><span class="nx">start</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">MONTH</span><span class="o">,</span> <span class="m">1</span><span class="o">);</span>
|
|
<span class="k">var</span> <span class="nx">end</span> <span class="o">=</span> <span class="k">this</span><span class="o">.</span><span class="nx">subtract</span><span class="o">(</span><span class="nx">nextMonth</span><span class="o">,</span> <span class="k">this</span><span class="o">.</span><span class="nx">DAY</span><span class="o">,</span> <span class="m">1</span><span class="o">);</span>
|
|
<span class="k">return</span> <span class="nx">end</span><span class="o">;</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Clears the time fields from a given date, effectively setting the time to 12 noon.</span>
|
|
<span class="c"> * @method clearTime</span>
|
|
<span class="c"> * @param {Date} date The JavaScript Date for which the time fields will be cleared</span>
|
|
<span class="c"> * @return {Date} The JavaScript Date cleared of all time fields</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">clearTime</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">date</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="nx">date</span><span class="o">.</span><span class="nx">setHours</span><span class="o">(</span><span class="m">12</span><span class="o">,</span><span class="m">0</span><span class="o">,</span><span class="m">0</span><span class="o">,</span><span class="m">0</span><span class="o">);</span>
|
|
<span class="k">return</span> <span class="nx">date</span><span class="o">;</span>
|
|
<span class="o">},</span>
|
|
|
|
<span class="c">/**</span>
|
|
<span class="c"> * Returns a new JavaScript Date object, representing the given year, month and date. Time fields (hr, min, sec, ms) on the new Date object</span>
|
|
<span class="c"> * are set to 0. The method allows Date instances to be created with the a year less than 100. "new Date(year, month, date)" implementations </span>
|
|
<span class="c"> * set the year to 19xx if a year (xx) which is less than 100 is provided.</span>
|
|
<span class="c"> * <p></span>
|
|
<span class="c"> * <em>NOTE:</em>Validation on argument values is not performed. It is the caller's responsibility to ensure</span>
|
|
<span class="c"> * arguments are valid as per the ECMAScript-262 Date object specification for the new Date(year, month[, date]) constructor.</span>
|
|
<span class="c"> * </p></span>
|
|
<span class="c"> * @method getDate</span>
|
|
<span class="c"> * @param {Number} y Year.</span>
|
|
<span class="c"> * @param {Number} m Month index from 0 (Jan) to 11 (Dec).</span>
|
|
<span class="c"> * @param {Number} d (optional) Date from 1 to 31. If not provided, defaults to 1.</span>
|
|
<span class="c"> * @return {Date} The JavaScript date object with year, month, date set as provided.</span>
|
|
<span class="c"> */</span>
|
|
<span class="nx">getDate</span> <span class="o">:</span> <span class="k">function</span><span class="o">(</span><span class="nx">y</span><span class="o">,</span> <span class="nx">m</span><span class="o">,</span> <span class="nx">d</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="k">var</span> <span class="nx">dt</span> <span class="o">=</span> <span class="kc">null</span><span class="o">;</span>
|
|
<span class="k">if</span> <span class="o">(</span><span class="nx">YAHOO</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">d</span><span class="o">))</span> <span class="o">{</span>
|
|
<span class="nx">d</span> <span class="o">=</span> <span class="m">1</span><span class="o">;</span>
|
|
<span class="o">}</span>
|
|
<span class="k">if</span> <span class="o">(</span><span class="nx">y</span> <span class="o">>=</span> <span class="m">100</span><span class="o">)</span> <span class="o">{</span>
|
|
<span class="nx">dt</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Date</span><span class="o">(</span><span class="nx">y</span><span class="o">,</span> <span class="nx">m</span><span class="o">,</span> <span class="nx">d</span><span class="o">);</span>
|
|
<span class="o">}</span> <span class="k">else</span> <span class="o">{</span>
|
|
<span class="nx">dt</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Date</span><span class="o">();</span>
|
|
<span class="nx">dt</span><span class="o">.</span><span class="nx">setFullYear</span><span class="o">(</span><span class="nx">y</span><span class="o">);</span>
|
|
<span class="nx">dt</span><span class="o">.</span><span class="nx">setMonth</span><span class="o">(</span><span class="nx">m</span><span class="o">);</span>
|
|
<span class="nx">dt</span><span class="o">.</span><span class="nx">setDate</span><span class="o">(</span><span class="nx">d</span><span class="o">);</span>
|
|
<span class="nx">dt</span><span class="o">.</span><span class="nx">setHours</span><span class="o">(</span><span class="m">0</span><span class="o">,</span><span class="m">0</span><span class="o">,</span><span class="m">0</span><span class="o">,</span><span class="m">0</span><span class="o">);</span>
|
|
<span class="o">}</span>
|
|
<span class="k">return</span> <span class="nx">dt</span><span class="o">;</span>
|
|
<span class="o">}</span>
|
|
<span class="o">};</span>
|
|
</pre></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="yui-b">
|
|
<div class="nav">
|
|
|
|
<div class="module">
|
|
<h4>Modules</h4>
|
|
<ul class="content">
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|
|
|
<li class=""><a href="module_animation.html">animation</a></li>
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<li class=""><a href="module_autocomplete.html">autocomplete</a></li>
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<li class=""><a href="module_button.html">button</a></li>
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<li class="selected"><a href="module_calendar.html">calendar</a></li>
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|
|
|
<li class=""><a href="module_charts.html">charts</a></li>
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|
|
|
<li class=""><a href="module_colorpicker.html">colorpicker</a></li>
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|
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|
<li class=""><a href="module_connection.html">connection</a></li>
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|
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|
<li class=""><a href="module_container.html">container</a></li>
|
|
|
|
<li class=""><a href="module_cookie.html">cookie</a></li>
|
|
|
|
<li class=""><a href="module_datasource.html">datasource</a></li>
|
|
|
|
<li class=""><a href="module_datatable.html">datatable</a></li>
|
|
|
|
<li class=""><a href="module_dom.html">dom</a></li>
|
|
|
|
<li class=""><a href="module_dragdrop.html">dragdrop</a></li>
|
|
|
|
<li class=""><a href="module_editor.html">editor</a></li>
|
|
|
|
<li class=""><a href="module_element.html">element</a></li>
|
|
|
|
<li class=""><a href="module_event.html">event</a></li>
|
|
|
|
<li class=""><a href="module_get.html">get</a></li>
|
|
|
|
<li class=""><a href="module_history.html">history</a></li>
|
|
|
|
<li class=""><a href="module_imagecropper.html">imagecropper</a></li>
|
|
|
|
<li class=""><a href="module_imageloader.html">imageloader</a></li>
|
|
|
|
<li class=""><a href="module_json.html">json</a></li>
|
|
|
|
<li class=""><a href="module_layout.html">layout</a></li>
|
|
|
|
<li class=""><a href="module_logger.html">logger</a></li>
|
|
|
|
<li class=""><a href="module_menu.html">menu</a></li>
|
|
|
|
<li class=""><a href="module_profiler.html">profiler</a></li>
|
|
|
|
<li class=""><a href="module_profilerviewer.html">profilerviewer</a></li>
|
|
|
|
<li class=""><a href="module_resize.html">resize</a></li>
|
|
|
|
<li class=""><a href="module_selector.html">selector</a></li>
|
|
|
|
<li class=""><a href="module_slider.html">slider</a></li>
|
|
|
|
<li class=""><a href="module_tabview.html">tabview</a></li>
|
|
|
|
<li class=""><a href="module_treeview.html">treeview</a></li>
|
|
|
|
<li class=""><a href="module_uploader.html">uploader</a></li>
|
|
|
|
<li class=""><a href="module_yahoo.html">yahoo</a></li>
|
|
|
|
<li class=""><a href="module_yuiloader.html">yuiloader</a></li>
|
|
|
|
<li class=""><a href="module_yuitest.html">yuitest</a></li>
|
|
</ul>
|
|
</div>
|
|
|
|
<div class="module">
|
|
<h4>Classes</h4>
|
|
<ul class="content">
|
|
<li class=""><a href="YAHOO.widget.Calendar.html">YAHOO.widget.Calendar</a></li>
|
|
<li class=""><a href="YAHOO.widget.Calendar2up.html">YAHOO.widget.Calendar2up</a></li>
|
|
<li class=""><a href="YAHOO.widget.Calendar_Core.html">YAHOO.widget.Calendar_Core</a></li>
|
|
<li class=""><a href="YAHOO.widget.CalendarGroup.html">YAHOO.widget.CalendarGroup</a></li>
|
|
<li class=""><a href="YAHOO.widget.CalendarNavigator.html">YAHOO.widget.CalendarNavigator</a></li>
|
|
<li class=""><a href="YAHOO.widget.DateMath.html">YAHOO.widget.DateMath</a></li>
|
|
</ul>
|
|
</div>
|
|
|
|
<div class="module">
|
|
<h4>Files</h4>
|
|
<ul class="content">
|
|
<li class=""><a href="Calendar.js.html">Calendar.js</a></li>
|
|
<li class=""><a href="CalendarGroup.js.html">CalendarGroup.js</a></li>
|
|
<li class=""><a href="CalendarNavigator.js.html">CalendarNavigator.js</a></li>
|
|
<li class="selected"><a href="DateMath.js.html">DateMath.js</a></li>
|
|
</ul>
|
|
</div>
|
|
|
|
|
|
|
|
|
|
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div id="ft">
|
|
<hr />
|
|
Copyright © 2007 Yahoo! Inc. All rights reserved.
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|