support.js
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define( [
"../var/support",
"../var/document"
], function( support, document ) {
( function() {
var shrinkWrapBlocksVal;
support.shrinkWrapBlocks = function() {
if ( shrinkWrapBlocksVal != null ) {
return shrinkWrapBlocksVal;
}
// Will be changed later if needed.
shrinkWrapBlocksVal = false;
// Minified: var b,c,d
var div, body, container;
body = document.getElementsByTagName( "body" )[ 0 ];
if ( !body || !body.style ) {
// Test fired too early or in an unsupported environment, exit.
return;
}
// Setup
div = document.createElement( "div" );
container = document.createElement( "div" );
container.style.cssText = "position:absolute;border:0;width:0;height:0;top:0;left:-9999px";
body.appendChild( container ).appendChild( div );
// Support: IE6
// Check if elements with layout shrink-wrap their children
if ( typeof div.style.zoom !== "undefined" ) {
// Reset CSS: box-sizing; display; margin; border
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:1px;width:1px;zoom:1";
div.appendChild( document.createElement( "div" ) ).style.width = "5px";
shrinkWrapBlocksVal = div.offsetWidth !== 3;
}
body.removeChild( container );
return shrinkWrapBlocksVal;
};
} )();
return support;
} );