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Support: Reduce size

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gibson042 committed Feb 14, 2014
1 parent a7ea12a commit 954966e08d26bf29700711dc4d7b56198350e862
Showing with 19 additions and 15 deletions.
  1. +19 −15 src/css/support.js
@@ -5,9 +5,6 @@ define([

(function() {
var pixelPositionVal, boxSizingReliableVal,
// Support: Firefox<29, Android 2.3 (Prefixed box-sizing versions).
divReset = "padding:0;margin:0;border:0;display:block;-webkit-box-sizing:content-box;" +
"-moz-box-sizing:content-box;box-sizing:content-box",
docElem = document.documentElement,
container = document.createElement( "div" ),
div = document.createElement( "div" );
@@ -20,17 +17,20 @@ define([
div.cloneNode( true ).style.backgroundClip = "";
support.clearCloneStyle = div.style.backgroundClip === "content-box";

container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;" +
"margin-top:1px";
container.style.cssText = "border:0;width:0;height:0;top:0;left:-9999px;margin-top:1px;" +
"position:absolute";
container.appendChild( div );

// Executing both pixelPosition & boxSizingReliable tests require only one layout
// so they're executed at the same time to save the second computation.
function computePixelPositionAndBoxSizingReliable() {
// Support: Firefox<29, Android 2.3 (Prefixed box-sizing versions).
div.style.cssText = "-webkit-box-sizing:border-box;-moz-box-sizing:border-box;" +
"box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;" +
"position:absolute;top:1%";
div.style.cssText =
// Support: Firefox<29, Android 2.3
// Vendor-prefix box-sizing
"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;" +
"box-sizing:border-box;display:block;margin-top:1%;top:1%;" +
"border:1px;padding:1px;width:4px;position:absolute";
div.innerHTML = "";
docElem.appendChild( container );

var divStyle = window.getComputedStyle( div, null );
@@ -40,9 +40,10 @@ define([
docElem.removeChild( container );
}

// Use window.getComputedStyle because jsdom on node.js will break without it.
// Support: node.js jsdom
// Don't assume that getComputedStyle is a property of the global object
if ( window.getComputedStyle ) {
jQuery.extend(support, {
jQuery.extend( support, {
pixelPosition: function() {
// This test is executed only once but we still do memoizing
// since we can use the boxSizingReliable pre-computing.
@@ -64,7 +65,13 @@ define([
// This support function is only executed once so no memoizing is needed.
var ret,
marginDiv = div.appendChild( document.createElement( "div" ) );
marginDiv.style.cssText = div.style.cssText = divReset;

// Reset CSS: box-sizing; display; margin; border; padding
marginDiv.style.cssText = div.style.cssText =
// Support: Firefox<29, Android 2.3
// Vendor-prefix box-sizing
"-webkit-box-sizing:content-box;-moz-box-sizing:content-box;" +
"box-sizing:content-box;display:block;margin:0;border:0;padding:0";
marginDiv.style.marginRight = marginDiv.style.width = "0";
div.style.width = "1px";
docElem.appendChild( container );
@@ -73,9 +80,6 @@ define([

docElem.removeChild( container );

// Clean up the div for other support tests.
div.innerHTML = "";

return ret;
}
});

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