support.js
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define( [
"./core",
"./var/support",
"./var/document",
"./core/init", // Needed for hasOwn support test
// This is listed as a dependency for build order, but it's still optional in builds
"./core/ready"
], function( jQuery, support, document ) {
// Support: IE<9
// Iteration over object's inherited properties before its own
var i;
for ( i in jQuery( support ) ) {
break;
}
support.ownFirst = i === "0";
// Note: most support tests are defined in their respective modules.
// false until the test is run
support.inlineBlockNeedsLayout = false;
// Execute ASAP in case we need to set body.style.zoom
jQuery( function() {
// Minified: var a,b,c,d
var val, div, body, container;
body = document.getElementsByTagName( "body" )[ 0 ];
if ( !body || !body.style ) {
// Return for frameset docs that don't have a body
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 );
if ( typeof div.style.zoom !== "undefined" ) {
// Support: IE<8
// Check if natively block-level elements act like inline-block
// elements when setting their display to 'inline' and giving
// them layout
div.style.cssText = "display:inline;margin:0;border:0;padding:1px;width:1px;zoom:1";
support.inlineBlockNeedsLayout = val = div.offsetWidth === 3;
if ( val ) {
// Prevent IE 6 from affecting layout for positioned elements #11048
// Prevent IE from shrinking the body in IE 7 mode #12869
// Support: IE<8
body.style.zoom = 1;
}
}
body.removeChild( container );
} );
return support;
} );