resources/jquery/jquery.color.js

   1 /*
   2  * jQuery Color Animations
   3  * Copyright 2007 John Resig
   4  * Released under the MIT and GPL licenses.
   5  *
   6  * - 2011-01-05: Modified by Krinkle to use the jQuery.colorUtil plugin (needs to be loaded first)
   7  */
   8
   9 (function(jQuery){
  10
  11         // We override the animation for all of these color styles
  12         jQuery.each(['backgroundColor', 'borderBottomColor', 'borderLeftColor', 'borderRightColor', 'borderTopColor', 'color', 'outlineColor'], function(i,attr){
  13                 jQuery.fx.step[attr] = function(fx){
  14                         if ( fx.state == 0 ) {
  15                                 fx.start = getColor( fx.elem, attr );
  16                                 fx.end = $.colorUtil.getRGB( fx.end );
  17                         }
  18
  19                         fx.elem.style[attr] = "rgb(" + [
  20                                 Math.max(Math.min( parseInt((fx.pos * (fx.end[0] - fx.start[0])) + fx.start[0]), 255), 0),
  21                                 Math.max(Math.min( parseInt((fx.pos * (fx.end[1] - fx.start[1])) + fx.start[1]), 255), 0),
  22                                 Math.max(Math.min( parseInt((fx.pos * (fx.end[2] - fx.start[2])) + fx.start[2]), 255), 0)
  23                         ].join(",") + ")";
  24                 }
  25         });
  26
  27         function getColor(elem, attr) {
  28                 var color;
  29
  30                 do {
  31                         color = jQuery.curCSS(elem, attr);
  32
  33                         // Keep going until we find an element that has color, or we hit the body
  34                         if ( color != '' && color != 'transparent' || jQuery.nodeName(elem, "body") )
  35                                 break;
  36
  37                         attr = "backgroundColor";
  38                 } while ( elem = elem.parentNode );
  39
  40                 return $.colorUtil.getRGB(color);
  41         };
  42
  43 })(jQuery);