utils/test/testapi/3rd_party/static/testapi-ui/assets/lib/jquery/src/css/support.js

   1 define( [
   2         "../core",
   3         "../var/document",
   4         "../var/documentElement",
   5         "../var/support"
   6 ], function( jQuery, document, documentElement, support ) {
   7
   8 "use strict";
   9
  10 ( function() {
  11
  12         // Executing both pixelPosition & boxSizingReliable tests require only one layout
  13         // so they're executed at the same time to save the second computation.
  14         function computeStyleTests() {
  15
  16                 // This is a singleton, we need to execute it only once
  17                 if ( !div ) {
  18                         return;
  19                 }
  20
  21                 div.style.cssText =
  22                         "box-sizing:border-box;" +
  23                         "position:relative;display:block;" +
  24                         "margin:auto;border:1px;padding:1px;" +
  25                         "top:1%;width:50%";
  26                 div.innerHTML = "";
  27                 documentElement.appendChild( container );
  28
  29                 var divStyle = window.getComputedStyle( div );
  30                 pixelPositionVal = divStyle.top !== "1%";
  31
  32                 // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
  33                 reliableMarginLeftVal = divStyle.marginLeft === "2px";
  34                 boxSizingReliableVal = divStyle.width === "4px";
  35
  36                 // Support: Android 4.0 - 4.3 only
  37                 // Some styles come back with percentage values, even though they shouldn't
  38                 div.style.marginRight = "50%";
  39                 pixelMarginRightVal = divStyle.marginRight === "4px";
  40
  41                 documentElement.removeChild( container );
  42
  43                 // Nullify the div so it wouldn't be stored in the memory and
  44                 // it will also be a sign that checks already performed
  45                 div = null;
  46         }
  47
  48         var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
  49                 container = document.createElement( "div" ),
  50                 div = document.createElement( "div" );
  51
  52         // Finish early in limited (non-browser) environments
  53         if ( !div.style ) {
  54                 return;
  55         }
  56
  57         // Support: IE <=9 - 11 only
  58         // Style of cloned element affects source element cloned (#8908)
  59         div.style.backgroundClip = "content-box";
  60         div.cloneNode( true ).style.backgroundClip = "";
  61         support.clearCloneStyle = div.style.backgroundClip === "content-box";
  62
  63         container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
  64                 "padding:0;margin-top:1px;position:absolute";
  65         container.appendChild( div );
  66
  67         jQuery.extend( support, {
  68                 pixelPosition: function() {
  69                         computeStyleTests();
  70                         return pixelPositionVal;
  71                 },
  72                 boxSizingReliable: function() {
  73                         computeStyleTests();
  74                         return boxSizingReliableVal;
  75                 },
  76                 pixelMarginRight: function() {
  77                         computeStyleTests();
  78                         return pixelMarginRightVal;
  79                 },
  80                 reliableMarginLeft: function() {
  81                         computeStyleTests();
  82                         return reliableMarginLeftVal;
  83                 }
  84         } );
  85 } )();
  86
  87 return support;
  88
  89 } );