soundmap_theme/carnaval/soundmanagerv297a-20130101/demo/template/sm2_defer-example.html

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2016-11-29 01:18:17 +01:00
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
<head>
<title>SoundManager 2: SM2_DEFER Example</title>
<meta name="description" content="How to load the SoundManager 2 JavaScript API, and call the SoundManager() constructor yourself." />
<style type="text/css">
#soundmanager-debug {
/* SM2 debug container (optional, use or customize this as you like - makes in-browser debug output more useable) */
position:fixed;_position:absolute;right:1em;bottom:1em;width:50em;height:18em;overflow:auto;background:#fff;margin:1em;padding:1em;border:1px solid #999;font-family:monaco,"lucida console",verdana,tahoma,"sans serif";font-size:x-small;line-height:1.5em;opacity:0.9;filter:alpha(opacity=90);
}
</style>
<!-- some CSS for this demo page, not required for SM2 -->
<link rel="stylesheet" href="template.css" />
<!-- SM2_DEFER EXAMPLE -->
<script type="text/javascript">
/*
* Firstly, define SM2_DEFER and set it to true *before* we load soundmanager2.js.
* This prevents the SoundManager() constructor from being called immediately.
* SM2_DEFER should be assigned within the global scope.
*/
window.SM2_DEFER = true;
</script>
<!-- Now, load soundmanager2.js as we normally would. -->
<script type="text/javascript" src="../../script/soundmanager2.js"></script>
<!-- "Some time later", window.onload() may have fired and you now want to start SM2, etc... -->
<script type="text/javascript">
// for example purposes, we'll wait until window.onload before starting things.
window.onload = function() {
/*
* Now that the SM2 constructor is defined, you can call the constructor,
* set the options and "kick-start" SM2's init process, and it should work as normal.
* WARNING: Do not call beginDelayedInit() before "DOM ready", or things will fail.
*/
// construct the instance (must be named soundManager, and scoped globally)
window.soundManager = new SoundManager();
// assign flash url, flashVersion and other SM2 options as usual
soundManager.setup({
url: '../../swf/',
flashVersion: 9
// etc...
});
// finally, kick-start init process.
// (old IE etc. may miss domloaded/ready/window.load if they've already fired.)
soundManager.beginDelayedInit();
}
</script>
</head>
<body style="height:100%">
<div style="margin-right:43em">
<h1>SoundManager 2: SM2_DEFER Example</h1>
<p>This is an example of manually starting SoundManager 2. If you want to pre-load the SM2 script up front and have its onready() events etc. fire much later without delay, this approach makes sense. Otherwise, it's better to <a href="deferred-example.html" title="SoundManager 2: Lazy-loading example">lazy-load</a> or simply load SM2 normally as an external script without deferring.</p>
<h2>How it works</h2>
<p>By default, SM2 will call its own SoundManager() constructor inline and will try to initialize ASAP. This page defines a global boolean - <code>window.SM2_DEFER = true;</code> - before loading soundmanager2.js, preventing the constructor from being called.</p>
<p>Some time later, you must call <code>soundManager = new SoundManager();</code> manually and set things like <code>soundManager.url</code> etc. Finally, you may then call <code>soundManager.beginDelayedInit()</code> to kick off the initialization process. SM2 should then start as usual.</p>
<h2>Example code</h2>
<pre class="block"><code>&lt;script type="<span>text/javascript</span>"&gt;
<span><span>/*
* Firstly, define SM2_DEFER and set it to true *before* we load soundmanager2.js.
* This prevents the SoundManager() constructor from being called immediately.
* SM2_DEFER should be assigned within the global scope.
*/</span></span>
window.SM2_DEFER = true;
&lt;/script&gt;
<span><span>&lt;!-- Now, load soundmanager2.js as we normally would. --&gt;</span></span>
&lt;script type="text/javascript" src="<span>../../script/soundmanager2.js</span>"&gt;&lt;/script&gt;
<span><span>&lt;!-- "Some time later", window.onload() may have fired and you now want to start SM2, etc... --&gt;</span></span>
&lt;script type="text/javascript"&gt;
<span><span>// for example purposes, we'll wait until window.onload before starting things.</span></span>
window.onload = function() {
<span><span>/*
* Now that the SM2 constructor is defined, you can call the constructor,
* set the options and "kick-start" SM2's init process, and it should work as normal.
* WARNING: Do not call beginDelayedInit() before "DOM ready", or things will fail.
*/</span></span>
<span><span>// construct the instance (must be named soundManager, and scoped globally)</span></span>
window.soundManager = new SoundManager();
<span><span>// assign flash url, flashVersion and other SM2 options as usual</span></span>
soundManager.setup({
// path to directory containing SM2 SWF
url: '<span>/path/to/swfs/</span>',
flashVersion: 9
<span><span>// etc...</span></span>
});
<span><span>// finally, kick-start the init process.</span></span>
<span><span>// (old IE etc. may miss domloaded/ready/window.load if they've already fired.)</span></span>
soundManager.beginDelayedInit();
}
&lt;/script&gt;</code></pre>
</div>
</body>
</html>