How to fix the resize event in IE

In IE the window resize event is fired multiple times per actual resize: it is a well known issue for IE6 and IE7, but they misbehave along different patterns. Actually it seems that IE6 is worse than IE7.

After quite a long session of R&D, I’ve got to a pretty good solution, in the form of a jQuery plugin: jquery.wresize.js

/*  
===============================================================================
WResize is the jQuery plugin for fixing the IE window resize bug
...............................................................................
                                               Copyright 2007 / Andrea Ercolino
-------------------------------------------------------------------------------
LICENSE: http://www.opensource.org/licenses/mit-license.php
WEBSITE: http://noteslog.com/
===============================================================================
*/

( function( $ ) 
{
	$.fn.wresize = function( f ) 
	{
		version = '1.1';
		wresize = {fired: false, width: 0};

		function resizeOnce() 
		{
			if ( $.browser.msie )
			{
				if ( ! wresize.fired )
				{
					wresize.fired = true;
				}
				else 
				{
					var version = parseInt( $.browser.version, 10 );
					wresize.fired = false;
					if ( version < 7 )
					{
						return false;
					}
					else if ( version == 7 )
					{
						//a vertical resize is fired once, an horizontal resize twice
						var width = $( window ).width();
						if ( width != wresize.width )
						{
							wresize.width = width;
							return false;
						}
					}
				}
			}

			return true;
		}

		function handleWResize( e ) 
		{
			if ( resizeOnce() )
			{
				return f.apply(this, [e]);
			}
		}

		this.each( function() 
		{
			if ( this == window )
			{
				$( this ).resize( handleWResize );
			}
			else
			{
				$( this ).resize( f );
			}
		} );

		return this;
	};

} ) ( jQuery );

If you want to try it, here is a test page, where a div is automatically resized when the window is resized.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" style="overflow:hidden;">
 <head>
  <title> test window resize </title>

<script type="text/javascript" src="http://jquery.com/src/jquery-latest.pack.js"></script>
<script type="text/javascript" src="jquery.wresize.js"></script>


<script type="text/javascript">
jQuery( function( $ ) 
{
	function content_resize() 
	{
		var w = $( window );
		var H = w.height();
		var W = w.width();
		$( '#content' ).css( {width: W-20, height: H-20} );
	}

	$( window ).wresize( content_resize );

	content_resize();
} );
</script>

 </head>

 <body>
 
<div id="content" style="border: 1px dashed silver; position:absolute; overflow:auto;">
test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test test 
</div>

 </body>
</html>

References:

http://dev.jquery.com
http://snook.ca
http://ecmascript.stchur.com