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Basic Features of the ImageLoader Utility

 


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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>


    <meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Basic Features of the ImageLoader Utility</title>

<style type="text/css">
/*margin and padding on body element
  can introduce errors in determining
  element position and are not recommended;
  we turn them off as a foundation for YUI
  CSS treatments. */
body {
  margin:0;
  padding:0;
}
</style>

<link rel="stylesheet" type="text/css" href="yui_2.7.0b-lib/fonts/fonts-min.css" />
<script type="text/javascript" src="yui_2.7.0b-lib/yahoo-dom-event/yahoo-dom-event.js"></script>
<script type="text/javascript" src="yui_2.7.0b-lib/imageloader/imageloader-min.js"></script>

<!--there is no custom header content for this example-->

</head>

<body class=" yui-skin-sam">


<h1>Basic Features of the ImageLoader Utility</h1>

<div class="exampleIntro">
  <p>Displayed here are the basic abilities of the <a href="http://developer.yahoo.com/yui/imageloader/">ImageLoader Utility</a>. Images are loaded only after triggers are fired or time limits are reached.</p>

<p>Hover over each image to show its triggers and its time limit. Try tripping the triggers to see the load reactions. Refresh the page to reset the images.</p>

      
</div>

<!--BEGIN SOURCE CODE FOR EXAMPLE  -->

<style>

.everything { position:relative; height:420px; }
.everything div { border:1px solid #888; }
.topmain { position:absolute; top:10px; left:120px; height:75px; width:100px; }
.duo1 { position:absolute; top:130px; left:20px; height:67px; width:100px; }
.duo2 { position:absolute; top:130px; left:220px; height:53px; width:100px; }
.png { position:absolute; top:240px; left:140px; height:34px; width:61px; }
.scroll { position:absolute; top:320px; left:120px; height:72px; width:100px; }

</style>


<div class='everything' id='everything'>
  <div class='topmain' id='topmain' title='group 1; mouse over image; 2 sec limit'></div>
  <div class='duo1' id='duo1' title='group 2; mouse over left image, or click on right image; 4 sec limit'></div>
  <div class='duo2' id='duo2' title='group 2; mouse over left image, or click on right image; 4 sec limit'></div>
  <div class='png' id='pngimg' title='group 3; no trigger; 5 sec limit'></div>
  <div class='scroll' title='group 4; scroll; no time limit'>
    <img id='scrollImg' style='visibility:hidden;' />
  </div>
</div>


<script>

var mainGroup = new YAHOO.util.ImageLoader.group('topmain', 'mouseover', 2);
mainGroup.registerBgImage('topmain', 'http://developer.yahoo.com/yui/docs/assets/examples/exampleimages/small/museum.jpg');
mainGroup.name = 'group 1';

var duoGroup = new YAHOO.util.ImageLoader.group('duo1', 'mouseover', 4);
duoGroup.registerBgImage('duo1', 'http://developer.yahoo.com/yui/docs/assets/examples/exampleimages/small/uluru.jpg');
duoGroup.registerBgImage('duo2', 'http://developer.yahoo.com/yui/docs/assets/examples/exampleimages/small/katatjuta.jpg');
duoGroup.addTrigger('duo2', 'click');
duoGroup.name = 'group 2';

var pngGroup = new YAHOO.util.ImageLoader.group(null, null, 5);
pngGroup.registerPngBgImage('pngimg', 'http://us.i1.yimg.com/us.yimg.com/i/us/nws/weather/gr/47s.png');
pngGroup.name = 'group 3';

var scrollGroup = new YAHOO.util.ImageLoader.group(window, 'scroll');
var scrollImg = scrollGroup.registerSrcImage('scrollImg', 'http://developer.yahoo.com/yui/docs/assets/examples/exampleimages/small/morraine.jpg');
scrollImg.setVisible = true;
scrollGroup.name = 'group 4';

</script>

<!--END SOURCE CODE FOR EXAMPLE  -->

</body>
</html>
<!-- presentbright.corp.yahoo.com uncompressed/chunked Thu Feb 19 10:53:15 PST 2009 -->

   
  








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