27 lines
789 B
JavaScript
27 lines
789 B
JavaScript
define( [
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"../core",
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"../var/documentElement",
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"../selector" // jQuery.contains
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], function( jQuery, documentElement ) {
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"use strict";
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var isAttached = function( elem ) {
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return jQuery.contains( elem.ownerDocument, elem );
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},
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composed = { composed: true };
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// Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
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// Check attachment across shadow DOM boundaries when possible (gh-3504)
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// Support: iOS 10.0-10.2 only
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// Early iOS 10 versions support `attachShadow` but not `getRootNode`,
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// leading to errors. We need to check for `getRootNode`.
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if ( documentElement.getRootNode ) {
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isAttached = function( elem ) {
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return jQuery.contains( elem.ownerDocument, elem ) ||
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elem.getRootNode( composed ) === elem.ownerDocument;
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};
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}
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return isAttached;
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} );
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