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delayer.html
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<!DOCTYPE html>
<html>
<head>
<title>delayer.coffee</title>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width, target-densitydpi=160dpi, initial-scale=1.0; maximum-scale=1.0; user-scalable=0;">
<link rel="stylesheet" media="all" href="docco.css" />
</head>
<body>
<div id="container">
<div id="background"></div>
<ul id="jump_to">
<li>
<a class="large" href="javascript:void(0);">Jump To …</a>
<a class="small" href="javascript:void(0);">+</a>
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<ul class="sections">
<li id="title">
<div class="annotation">
<h1>delayer.coffee</h1>
</div>
</li>
<li id="section-1">
<div class="annotation">
<div class="pilwrap ">
<a class="pilcrow" href="#section-1">¶</a>
</div>
</div>
<div class="content"><div class='highlight'><pre><span class="string">'use strict'</span></pre></div></div>
</li>
<li id="section-2">
<div class="annotation">
<div class="pilwrap ">
<a class="pilcrow" href="#section-2">¶</a>
</div>
<h2 id="delayer">Delayer</h2>
</div>
</li>
<li id="section-3">
<div class="annotation">
<div class="pilwrap ">
<a class="pilcrow" href="#section-3">¶</a>
</div>
<p>Add functionality to set unique, named timeouts and intervals
so they can be cleared afterwards when disposing the object.
This is especially useful in your custom View class which inherits
from the standard Chaplin.View.</p>
<p>Mixin this object to add the delayer capability to any object:
_.extend object, Delayer</p>
<p>Or to a prototype of a class:
_.extend @prototype, Delayer</p>
<p>In the dispose method, call <code>clearDelayed</code> to remove all pending
timeouts and running intervals:</p>
<p>dispose: ->
return if @disposed
@clearDelayed()
super</p>
</div>
<div class="content"><div class='highlight'><pre>Delayer =
<span class="attribute">setTimeout</span>: <span class="function"><span class="params">(name, time, handler)</span> -></span>
<span class="property">@timeouts</span> ?= {}
<span class="property">@clearTimeout</span> name
<span class="function"><span class="title">wrappedHandler</span> = =></span>
<span class="keyword">delete</span> <span class="property">@timeouts</span>[name]
handler()
handle = setTimeout wrappedHandler, time
<span class="property">@timeouts</span>[name] = handle
handle
<span class="attribute">clearTimeout</span>: <span class="function"><span class="params">(name)</span> -></span>
<span class="keyword">return</span> <span class="keyword">unless</span> <span class="property">@timeouts</span> <span class="keyword">and</span> <span class="property">@timeouts</span>[name]?
clearTimeout <span class="property">@timeouts</span>[name]
<span class="keyword">delete</span> <span class="property">@timeouts</span>[name]
<span class="keyword">return</span>
<span class="attribute">clearAllTimeouts</span>:<span class="function"> -></span>
<span class="keyword">return</span> <span class="keyword">unless</span> <span class="property">@timeouts</span>
<span class="keyword">for</span> name, handle <span class="keyword">of</span> <span class="property">@timeouts</span>
<span class="property">@clearTimeout</span> name
<span class="keyword">return</span>
<span class="attribute">setInterval</span>: <span class="function"><span class="params">(name, time, handler)</span> -></span>
<span class="property">@clearInterval</span> name
<span class="property">@intervals</span> ?= {}
handle = setInterval handler, time
<span class="property">@intervals</span>[name] = handle
handle
<span class="attribute">clearInterval</span>: <span class="function"><span class="params">(name)</span> -></span>
<span class="keyword">return</span> <span class="keyword">unless</span> <span class="property">@intervals</span> <span class="keyword">and</span> <span class="property">@intervals</span>[name]
clearInterval <span class="property">@intervals</span>[name]
<span class="keyword">delete</span> <span class="property">@intervals</span>[name]
<span class="keyword">return</span>
<span class="attribute">clearAllIntervals</span>:<span class="function"> -></span>
<span class="keyword">return</span> <span class="keyword">unless</span> <span class="property">@intervals</span>
<span class="keyword">for</span> name, handle <span class="keyword">of</span> <span class="property">@intervals</span>
<span class="property">@clearInterval</span> name
<span class="keyword">return</span>
<span class="attribute">clearDelayed</span>:<span class="function"> -></span>
<span class="property">@clearAllTimeouts</span>()
<span class="property">@clearAllIntervals</span>()
<span class="keyword">return</span></pre></div></div>
</li>
<li id="section-4">
<div class="annotation">
<div class="pilwrap ">
<a class="pilcrow" href="#section-4">¶</a>
</div>
<p>You’re frozen when your heart’s not open</p>
</div>
<div class="content"><div class='highlight'><pre>Object.freeze? Delayer</pre></div></div>
</li>
<li id="section-5">
<div class="annotation">
<div class="pilwrap ">
<a class="pilcrow" href="#section-5">¶</a>
</div>
<p>Return our creation</p>
</div>
<div class="content"><div class='highlight'><pre>module.<span class="built_in">exports</span> = Delayer</pre></div></div>
</li>
</ul>
</div>
</body>
</html>