src/core/isAttached.js

   1 import { jQuery } from "../core.js";
   2 import { documentElement } from "../var/documentElement.js";
   3
   4 var isAttached = function( elem ) {
   5                 return jQuery.contains( elem.ownerDocument, elem ) ||
   6                         elem.getRootNode( composed ) === elem.ownerDocument;
   7         },
   8         composed = { composed: true };
   9
  10 // Support: IE 9 - 11+
  11 // Check attachment across shadow DOM boundaries when possible (gh-3504).
  12 // Provide a fallback for browsers without Shadow DOM v1 support.
  13 if ( !documentElement.getRootNode ) {
  14         isAttached = function( elem ) {
  15                 return jQuery.contains( elem.ownerDocument, elem );
  16         };
  17 }
  18
  19 export { isAttached };