jQuery( document ).ready( function ( $ ) { var collapsibleLists, i, handleOne; // Collapsible lists of categories and templates collapsibleLists = [ { $list: $( '.templatesUsed ul' ), $toggler: $( '.mw-templatesUsedExplanation' ), cookieName: 'templates-used-list' }, { $list: $( '.hiddencats ul' ), $toggler: $( '.mw-hiddenCategoriesExplanation' ), cookieName: 'hidden-categories-list' }, { $list: $( '.preview-limit-report-wrapper' ), $toggler: $( '.mw-limitReportExplanation' ), cookieName: 'preview-limit-report' } ]; handleOne = function ( $list, $toggler, cookieName ) { var isCollapsed = $.cookie( cookieName ) !== 'expanded'; // Style the toggler with an arrow icon and add a tabIndex and a role for accessibility $toggler.addClass( 'mw-editfooter-toggler' ).prop( 'tabIndex', 0 ).attr( 'role', 'button' ); $list.addClass( 'mw-editfooter-list' ); $list.makeCollapsible( { $customTogglers: $toggler, linksPassthru: true, plainMode: true, collapsed: isCollapsed } ); $toggler.addClass( isCollapsed ? 'mw-icon-arrow-collapsed' : 'mw-icon-arrow-expanded' ); $list.on( 'beforeExpand.mw-collapsible', function () { $toggler.removeClass( 'mw-icon-arrow-collapsed' ).addClass( 'mw-icon-arrow-expanded' ); $.cookie( cookieName, 'expanded' ); } ); $list.on( 'beforeCollapse.mw-collapsible', function () { $toggler.removeClass( 'mw-icon-arrow-expanded' ).addClass( 'mw-icon-arrow-collapsed' ); $.cookie( cookieName, 'collapsed' ); } ); }; for ( i = 0; i < collapsibleLists.length; i++ ) { // Pass to a function for iteration-local variables handleOne( collapsibleLists[i].$list, collapsibleLists[i].$toggler, collapsibleLists[i].cookieName ); } } );