chrome/test/data/third_party/spaceport/js/features.js

   1 define([ ], function () {
   2     // CSS transform feature detection based off of
   3     // http://andrew-hoyer.com/experiments/rain/
   4     // Public domain
   5
   6     var style = document.createElement('div').style;
   7
   8     function getFirstIn(object, propertyNames) {
   9         return propertyNames.filter(function(name) {
  10             return name in object;
  11         }).shift();
  12     }
  13
  14     var transformOriginStyleProperty = getFirstIn(style, [
  15         'transformOrigin',
  16         'WebkitTransformOrigin',
  17         'MozTransformOrigin',
  18         'msTransformOrigin',
  19         'OTransformOrigin'
  20     ]);
  21
  22     var transformStyleProperty = getFirstIn(style, [
  23         'transform',
  24         'WebkitTransform',
  25         'MozTransform',
  26         'msTransform',
  27         'OTransform'
  28     ]);
  29
  30     var CSSMatrix = window[getFirstIn(window, [
  31         'CSSMatrix',
  32         'WebKitCSSMatrix',
  33         'WebkitCSSMatrix'
  34     ])];
  35
  36     // Firefox has a bug where it requires 'px' for translate matrix
  37     // elements (where it should accept plain numbers).
  38     var matrixTranslateSuffix = transformStyleProperty === 'MozTransform' ? 'px' : '';
  39
  40     return {
  41         transformOriginStyleProperty: transformOriginStyleProperty,
  42         transformStyleProperty: transformStyleProperty,
  43         matrixTranslateSuffix: matrixTranslateSuffix,
  44         CSSMatrix: CSSMatrix
  45     }
  46 });