topical media & game development

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lib-js-animation-assets-iepngfix.htc / htc



  <public:component lightweight = true>
  <public:attach event="onpropertychange" onevent="doFix()" />
  
  <script type="text/javascript">
  
  // IE5.5+ PNG Alpha Fix v1.0RC4
  // (c) 2004-2005 Angus Turnbull http://www.twinhelix.com
  
  // This is licensed under the CC-GNU LGPL, version 2.1 or later.
  // For details, see: http://creativecommons.org/licenses/LGPL/2.1/
  
  
  // This must be a path to a blank image. That's all the configuration you need.
  if (typeof blankImg == 'undefined') var blankImg = 'lib-js-animation-assets-blank.gif';
  
  var f = 'DXImageTransform.Microsoft.AlphaImageLoader';
  
  function filt(s, m)
  {
   if (filters[f])
   {
    filters[f].enabled = s ? true : false;
    if (s) with (filters[f]) { src = s; sizingMethod = m }
   }
   else if (s) style.filter = 'progid:'+f+'(src="'+s+'",sizingMethod="'+m+'")';
  }
  
  function doFix()
  {
   // Assume IE7 is OK.
   if (!/MSIE (5\.5|6\.)/.test(navigator.userAgent) ||
    (event && !/(background|src)/.test(event.propertyName))) return;
  
   var bgImg = currentStyle.backgroundImage || style.backgroundImage;
  
   if (tagName == 'IMG')
   {
    if ((/\.png/i).test(src))
    {
     if (currentStyle.width == 'auto' && currentStyle.height == 'auto')
      style.width = offsetWidth + 'px';
     filt(src, 'scale');
     src = blankImg;
    }
    else if (src.indexOf(blankImg) < 0) filt();
   }
   else if (bgImg && bgImg != 'none')
   {
    if (bgImg.match(/^url[("']+(.*\.png)[)"']+/i))
    {
     var s = RegExp.$1;
     if (currentStyle.width == 'auto' && currentStyle.height == 'auto')
      style.width = offsetWidth + 'px';
     style.backgroundImage = 'none';
     filt(s, 'crop');
     // IE link fix.
     for (var n = 0; n < childNodes.length; n++)
      if (childNodes[n].style) childNodes[n].style.position = 'relative';
    }
    else filt();
   }
  }
  
  doFix();
  
  </script>
  </public:component>
  


(C) Æliens 18/6/2009

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