mirror of
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49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
/*!
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* jQuery UI Scroll Parent @VERSION
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* https://jqueryui.com
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*
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* Copyright OpenJS Foundation and other contributors
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* Released under the MIT license.
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* https://jquery.org/license
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*/
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//>>label: scrollParent
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//>>group: Core
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//>>description: Get the closest ancestor element that is scrollable.
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//>>docs: https://api.jqueryui.com/scrollParent/
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( function( factory ) {
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"use strict";
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if ( typeof define === "function" && define.amd ) {
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// AMD. Register as an anonymous module.
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define( [ "jquery", "./version" ], factory );
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} else {
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// Browser globals
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factory( jQuery );
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}
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} )( function( $ ) {
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"use strict";
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return $.fn.scrollParent = function( includeHidden ) {
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var position = this.css( "position" ),
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excludeStaticParent = position === "absolute",
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overflowRegex = includeHidden ? /(auto|scroll|hidden)/ : /(auto|scroll)/,
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scrollParent = this.parents().filter( function() {
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var parent = $( this );
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if ( excludeStaticParent && parent.css( "position" ) === "static" ) {
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return false;
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}
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return overflowRegex.test( parent.css( "overflow" ) + parent.css( "overflow-y" ) +
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parent.css( "overflow-x" ) );
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} ).eq( 0 );
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return position === "fixed" || !scrollParent.length ?
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$( this[ 0 ].ownerDocument || document ) :
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scrollParent;
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};
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} );
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