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- 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";
- };
- } );
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