laipower/wp-content/themes/generatepress/assets/js/dropdown-click.js

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JavaScript
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2020-04-07 13:03:04 +00:00
( function() {
'use strict';
if ( 'querySelector' in document && 'addEventListener' in window ) {
var body = document.body;
/**
* Dropdown click
*
* @param e The event.
* @param _this The clicked item.
*/
var dropdownClick = function( e, _this ) {
e.preventDefault();
e.stopPropagation();
if ( ! _this ) {
var _this = this;
}
var closestLi = _this.closest( 'li' );
// Close other sub-menus
var openedSubMenus = _this.closest( 'nav' ).querySelectorAll( 'ul.toggled-on' );
if ( openedSubMenus && ! _this.closest( 'ul' ).classList.contains( 'toggled-on' ) && ! _this.closest( 'li' ).classList.contains( 'sfHover' ) ) {
for ( var o = 0; o < openedSubMenus.length; o++ ) {
openedSubMenus[o].classList.remove( 'toggled-on' );
openedSubMenus[o].closest( 'li' ).classList.remove( 'sfHover' );
}
}
// Add sfHover class to parent li
closestLi.classList.toggle( 'sfHover' );
// Set aria-expanded on arrow
var dropdownToggle = closestLi.querySelector( '.dropdown-menu-toggle' );
if ( 'false' === dropdownToggle.getAttribute( 'aria-expanded' ) || ! dropdownToggle.getAttribute( 'aria-expanded' ) ) {
dropdownToggle.setAttribute( 'aria-expanded', 'true' );
} else {
dropdownToggle.setAttribute( 'aria-expanded', 'false' );
}
if ( closestLi.querySelector( '.sub-menu' ) ) {
var subMenuSelector = '.sub-menu';
} else {
var subMenuSelector = '.children';
}
// Open the sub-menu
if ( body.classList.contains( 'dropdown-click-menu-item' ) ) {
_this.parentNode.querySelector( subMenuSelector ).classList.toggle( 'toggled-on' );
} else if ( body.classList.contains( 'dropdown-click-arrow' ) ) {
closestLi.querySelector( subMenuSelector ).classList.toggle( 'toggled-on' );
}
}
// Do stuff if click dropdown if enabled
var parentElementLinks = document.querySelectorAll( '.main-nav .menu-item-has-children > a' );
// Open the sub-menu by clicking on the entire link element
if ( body.classList.contains( 'dropdown-click-menu-item' ) ) {
for ( var i = 0; i < parentElementLinks.length; i++ ) {
parentElementLinks[i].addEventListener( 'click', dropdownClick, true );
}
}
// Open the sub-menu by clicking on a dropdown arrow
if ( body.classList.contains( 'dropdown-click-arrow' ) ) {
// Add a class to sub-menu items that are set to #
for ( var i = 0; i < document.querySelectorAll( '.main-nav .menu-item-has-children > a' ).length; i++ ) {
if ( '#' == document.querySelectorAll( '.main-nav .menu-item-has-children > a' )[i].getAttribute( 'href' ) ) {
document.querySelectorAll( '.main-nav .menu-item-has-children > a' )[i].classList.add( 'menu-item-dropdown-click' );
}
}
var dropdownToggleLinks = document.querySelectorAll( '.main-nav .menu-item-has-children > a .dropdown-menu-toggle' );
for ( var i = 0; i < dropdownToggleLinks.length; i++ ) {
dropdownToggleLinks[i].addEventListener( 'click', dropdownClick, false );
dropdownToggleLinks[i].addEventListener( 'keydown', function( e ) {
var _this = this;
var key = e.which || e.keyCode;
if ( key === 13 ) { // 13 is enter
dropdownClick( e, _this );
}
}, false );
}
for ( var i = 0; i < document.querySelectorAll( '.main-nav .menu-item-has-children > a.menu-item-dropdown-click' ).length; i++ ) {
document.querySelectorAll( '.main-nav .menu-item-has-children > a.menu-item-dropdown-click' )[i].addEventListener( 'click', dropdownClick, false );
}
}
var closeSubMenus = function() {
if ( document.querySelector( 'nav ul .toggled-on' ) ) {
var activeSubMenus = document.querySelectorAll( 'nav ul .toggled-on' );
var activeDropdownToggles = document.querySelectorAll( 'nav .dropdown-menu-toggle' );
for ( var i = 0; i < activeSubMenus.length; i++ ) {
activeSubMenus[i].classList.remove( 'toggled-on' );
activeSubMenus[i].closest( '.sfHover' ).classList.remove( 'sfHover' );
}
for ( var i = 0; i < activeDropdownToggles.length; i++ ) {
activeDropdownToggles[i].setAttribute( 'aria-expanded', 'false' );
}
}
}
// Close sub-menus when clicking elsewhere
document.addEventListener( 'click', function ( event ) {
if ( ! event.target.closest( '.sfHover' ) ) {
closeSubMenus();
}
}, false);
// Close sub-menus on escape key
document.addEventListener( 'keydown', function( e ) {
var key = e.which || e.keyCode;
if ( key === 27 ) { // 27 is esc
closeSubMenus();
}
}, false );
}
})();