111 lines
3.5 KiB
JavaScript
111 lines
3.5 KiB
JavaScript
( function() {
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'use strict';
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if ( 'querySelector' in document && 'addEventListener' in window ) {
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/**
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* Navigation search.
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*
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* @param e The event.
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* @param _this The clicked item.
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*/
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var toggleSearch = function( e, item ) {
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e.preventDefault();
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if ( ! item ) {
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var item = this;
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}
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var nav = item.closest( 'nav' );
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if ( item.getAttribute( 'data-nav' ) ) {
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nav = document.querySelector( this.getAttribute( 'data-nav' ) );
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}
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var form = nav.querySelector( '.navigation-search' );
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var focusableEls = document.querySelectorAll('a[href], area[href], input:not([disabled]):not(.navigation-search), select:not([disabled]), textarea:not([disabled]), button:not([disabled]), [tabindex="0"]');
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if ( form.classList.contains( 'nav-search-active' ) ) {
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item.classList.remove( 'close-search' );
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item.classList.remove( 'active' );
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document.activeElement.blur();
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item.classList.remove( 'sfHover' );
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form.classList.remove( 'nav-search-active' );
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item.style.float = '';
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// Allow tabindex on items again.
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for ( var i = 0; i < focusableEls.length; i++ ) {
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if ( ! focusableEls[i].closest( '.navigation-search' ) && ! focusableEls[i].closest( '.search-item' ) ) {
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focusableEls[i].removeAttribute( 'tabindex' );
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}
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};
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} else {
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item.classList.add( 'active' );
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form.classList.add( 'nav-search-active' );
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form.querySelector( '.search-field' ).focus();
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// Trap tabindex within the search element
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for ( var i = 0; i < focusableEls.length; i++ ) {
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if ( ! focusableEls[i].closest( '.navigation-search' ) && ! focusableEls[i].closest( '.search-item' ) ) {
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focusableEls[i].setAttribute( 'tabindex', '-1' );
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}
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};
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// Set a delay to stop conflict with toggleFocus() in a11y.js
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setTimeout( function() {
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item.classList.add( 'sfHover' );
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}, 50 );
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if ( ! document.body.classList.contains( 'nav-aligned-center' ) ) {
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item.classList.add( 'close-search' );
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} else {
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item.style.opacity = 0;
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setTimeout( function() {
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item.classList.add( 'close-search' );
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item.style.opacity = 1;
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if ( document.body.classList.contains ( 'rtl' ) ) {
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item.style.float = 'left';
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} else {
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item.style.float = 'right';
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}
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}, 250 );
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}
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}
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}
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if ( document.body.classList.contains( 'nav-search-enabled' ) ) {
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var searchItems = document.querySelectorAll( '.search-item' );
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for ( var i = 0; i < searchItems.length; i++ ) {
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searchItems[i].addEventListener( 'click', toggleSearch, false );
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}
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// Close navigation search on click elsewhere
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document.addEventListener( 'click', function ( event ) {
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if ( document.querySelector( '.navigation-search.nav-search-active' ) ) {
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if ( ! event.target.closest( '.navigation-search' ) && ! event.target.closest( '.search-item' ) ) {
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var activeSearchItems = document.querySelectorAll( '.search-item.active' );
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for ( var i = 0; i < activeSearchItems.length; i++ ) {
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toggleSearch( event, activeSearchItems[i] );
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}
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}
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}
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}, false);
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// Close navigation search on escape key
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document.addEventListener( 'keydown', function( e ) {
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if ( document.querySelector( '.navigation-search.nav-search-active' ) ) {
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var key = e.which || e.keyCode;
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if ( key === 27 ) { // 27 is esc
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var activeSearchItems = document.querySelectorAll( '.search-item.active' );
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for ( var i = 0; i < activeSearchItems.length; i++ ) {
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toggleSearch( e, activeSearchItems[i] );
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}
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}
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}
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}, false );
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}
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}
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})();
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