https://www.housingplusgroup.co.uk/wp-content/plugins/toast-responsive-menu/menu/menu.js

1jQuery(window).ready(function(){
2    /*
3     * Adjust the <html> margin based on the height of the menu bar
4     */
5    function toastMMsetHeights(){
6        if(jQuery('.toast-mm-banner').css('display') == 'block'){
7            var mm_bar_height = jQuery('.toast-mm-banner').outerHeight();
8            jQuery('body, .toast-mm-menu').css({'padding-top': mm_bar_height});
9            jQuery('.toast-mm-overflow').css({'max-height': 'calc(100vh - 50px - '+mm_bar_height+'px)'});
10        }else{
11            jQuery('body, .toast-mm-menu').css({'padding-top': 0});
12        }
13    }
14
15    jQuery(window).resize(function(){
16            toastMMsetHeights();
17    })
18    toastMMsetHeights();
19
20    /*
21     * Open and close the navigation
22     */
23    jQuery('.toast-mm-banner__hamburger').on('click', function(){
24        if(jQuery('.toast-mm').hasClass('active')){
25            jQuery('.toast-mm').removeClass('active');
26        }else{
27            jQuery('.toast-mm').addClass('active');
28        }
29    })
30
31    /* 
32     * Append arrow icons to links with submenus
33     */
34    jQuery('.toast-mm .menu-item-has-children > a').append('<div class="toast-mm-open-submenu"><div class="toast-mm-chevron"></div></div>');
35
36    /*
37     * Open and close sub-navigation
38     */
39	function open_sub_menu(sub_menu, sub_menu_trigger){
40			if(jQuery(sub_menu_trigger).hasClass('active')){
41				jQuery(sub_menu_trigger).removeClass('active');
42				var sub_menu_height = jQuery(sub_menu).css({'height': 'auto'}).height();
43				jQuery(sub_menu).height(sub_menu_height);
44				jQuery(sub_menu).height(0);
45
46				//close child submenus
47				jQuery(sub_menu).find('.sub-menu').height(0);
48				jQuery(sub_menu_trigger).find('li').removeClass('active');
49
50			}else{
51				jQuery(sub_menu_trigger).addClass('active');
52				var sub_menu_height = jQuery(sub_menu).css({'height': 'auto'}).height();
53				jQuery(sub_menu).height(0);
54				jQuery(sub_menu).height(sub_menu_height);
55
56				//amend parent submenus
57				jQuery(sub_menu_trigger).parents('.sub-menu').css({'height': 'auto'});
58			}
59	}
60	
61	
62	
63    jQuery('body').on('click','.toast-mm-open-submenu', function(e){
64        e.preventDefault();
65		e.stopPropagation();
66        var sub_menu = jQuery(this).parent('a').parent('.menu-item-has-children').find('.sub-menu')[0];
67        var sub_menu_trigger = jQuery(this).parent('a').parent('.menu-item-has-children');
68       
69        open_sub_menu(sub_menu, sub_menu_trigger);
70    })
71	
72	/* If parent links to itself open sub menu**/
73	jQuery('body').on('click','.toast-mm-menu li a', function(e){
74		if(jQuery(this).attr('href') == '#'){
75			e.preventDefault();
76			e.stopPropagation();
77			var sub_menu = jQuery(this).parent('.menu-item-has-children').find('.sub-menu')[0];
78        	var sub_menu_trigger = jQuery(this).parent('.menu-item-has-children');
79       
80        	open_sub_menu(sub_menu, sub_menu_trigger);
81		}
82    })
83	
84
85})