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<?php
/**
* $Horde: horde/js/alphaImageLoader.php,v 1.2.8.1 2005/01/03 12:25:39 jan Exp $
*
* Copyright 2004-2005 Charles J. Hagenbuch <chuck@horde.org>
*
* See the enclosed file COPYING for license information (LGPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
*/
@define('HORDE_BASE', dirname(__FILE__) . '/..');
require_once HORDE_BASE . '/lib/core.php';
$registry = &Registry::singleton(HORDE_SESSION_NONE);
/* This should be cached. */
$mod_gmt = gmdate('D, d M Y H:i:s', filemtime(__FILE__)) . ' GMT';
header('Last-Modified: ' . $mod_gmt);
header('Cache-Control: public, max-age=86400');
header('Content-Type: text/x-component');
?>
<public:component>
<public:attach event="onpropertychange" for="element" onEvent="propertyChanged()" />
<script language="JavaScript">
var needHack = needHack();
var transparentImage = "<?php echo $registry->getImageDir('horde') ?>/blank.gif";
pngHack();
function propertyChanged()
{
if (event.propertyName == "src") {
pngHack();
}
}
function pngHack()
{
if (!needHack) {
return;
}
var w = element.width;
var h = element.height;
var src = element.src;
if (src.indexOf(transparentImage) != -1) {
// Already fixed.
return;
}
if (src.indexOf("png") == -1) {
element.runtimeStyle.filter = "";
return;
}
element.src = transparentImage;
element.width = w;
element.height = h;
element.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
}
function needHack()
{
var pos = navigator.userAgent.indexOf("MSIE ");
if (pos == -1) {
return false;
}
var version = navigator.userAgent.substring(pos + 5);
return (((version.indexOf("5.5") == 0) || (version.indexOf("6") == 0)) && (navigator.platform == ("Win32")));
}
</script>
</public:component>
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