src/css/curCSS.js

   1 define([
   2         "../core",
   3         "./var/rnumnonpx",
   4         "./var/rmargin",
   5         "./var/getStyles",
   6         "./support",
   7         "../selector" // contains
   8 ], function( jQuery, rnumnonpx, rmargin, getStyles, support ) {
   9
  10 function curCSS( elem, name, computed ) {
  11         var width, minWidth, maxWidth, ret,
  12                 style = elem.style;
  13
  14         computed = computed || getStyles( elem );
  15
  16         // Support: IE9
  17         // getPropertyValue is only needed for .css('filter') (#12537)
  18         if ( computed ) {
  19                 ret = computed.getPropertyValue( name ) || computed[ name ];
  20         }
  21
  22         if ( computed ) {
  23
  24                 if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
  25                         ret = jQuery.style( elem, name );
  26                 }
  27
  28                 // A tribute to the "awesome hack by Dean Edwards"
  29                 // Android Browser returns percentage for some values,
  30                 // but width seems to be reliably pixels.
  31                 // This is against the CSSOM draft spec:
  32                 // http://dev.w3.org/csswg/cssom/#resolved-values
  33                 if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {
  34
  35                         // Remember the original values
  36                         width = style.width;
  37                         minWidth = style.minWidth;
  38                         maxWidth = style.maxWidth;
  39
  40                         // Put in the new values to get a computed value out
  41                         style.minWidth = style.maxWidth = style.width = ret;
  42                         ret = computed.width;
  43
  44                         // Revert the changed values
  45                         style.width = width;
  46                         style.minWidth = minWidth;
  47                         style.maxWidth = maxWidth;
  48                 }
  49         }
  50
  51         return ret !== undefined ?
  52                 // Support: IE9-11+
  53                 // IE returns zIndex value as an integer.
  54                 ret + "" :
  55                 ret;
  56 }
  57
  58 return curCSS;
  59 });