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src/css/var/isHiddenWithinTree.js
Maintainability
80.39
Lines of code
34
Difficulty
8.44
Estimated Errors
0.08
Function weight
By Complexity
By SLOC
define( [ "../../core", "../../selector" // css is assumed ], function( jQuery ) { "use strict"; // isHiddenWithinTree reports if an element has a non-"none" display style (inline and/or // through the CSS cascade), which is useful in deciding whether or not to make it visible. // It differs from the :hidden selector (jQuery.expr.pseudos.hidden) in two important ways: // * A hidden ancestor does not force an element to be classified as hidden. // * Being disconnected from the document does not force an element to be classified as hidden. // These differences improve the behavior of .toggle() et al. when applied to elements that are // detached or contained within hidden ancestors (gh-2404, gh-2863). return function( elem, el ) { // isHiddenWithinTree might be called from jQuery#filter function; // in that case, element will be second argument elem = el || elem; // Inline style trumps all return elem.style.display === "none" || elem.style.display === "" && // Otherwise, check computed style // Support: Firefox <=43 - 45 // Disconnected elements can have computed display: none, so first confirm that elem is // in the document. jQuery.contains( elem.ownerDocument, elem ) && jQuery.css( elem, "display" ) === "none"; }; } );