https://www.mickm.com/wp-content/themes/asata/assets/vendors/isogrid.js?ver=6.8.10

1jQuery(document).ready(function($) {
2	'use strict';
3	
4	$('.bt-iso-grid').each(function(){
5		var filter = $(this).find( '.bt-filters' ),
6			grid = $(this).find( '.bt-isotope' ),
7			container = grid.isotope( $(this).data( 'iso' ) ),
8			loadmore = $(this).find( '.bt-load-more-wrap .bt-load-more' ),
9			obj_loadMore = $(this).data( 'loadmore' ),
10			showLoadMore = typeof obj_loadMore !== 'undefined' ? obj_loadMore.show_loadmore : 0, //number of items loaded on init
11			initShow = typeof obj_loadMore !== 'undefined' ? parseInt(obj_loadMore.initShow): 6, //number of items loaded on init
12			initLoad = typeof obj_loadMore !== 'undefined' ? parseInt(obj_loadMore.initLoad) : 3, //number of items onclick load more button
13			counter = initShow, //counter for load more button
14			iso = container.data('isotope'); // get Isotope instance
15			
16		// bind filter button click
17		filter.on('click', '.bt-btn-filter', function(e) {
18			e.preventDefault();
19			var filterValue = $(this).attr('data-filter');
20			container.isotope({
21				filter: filterValue
22			});
23			
24			updateFilterCounts();
25		});
26		
27		// change is-checked class on buttons
28		filter.each(function(i, buttonGroup) {
29			var buttonGroup = $(buttonGroup);
30			buttonGroup.on('click', '.bt-btn-filter', function() {
31				buttonGroup.find('.is-checked').removeClass('is-checked');
32				$(this).addClass('is-checked');
33			});
34		});
35		
36		updateFilterCounts();
37		
38		// flatten object by concatting values
39		function concatValues( obj ) {
40			var value = '';
41			for ( var prop in obj ) {
42				value += obj[ prop ];
43			}
44			return value;
45		}
46
47		function updateFilterCounts() {
48			// get filtered item elements
49			var itemElems = grid.isotope('getFilteredItemElements');
50			var contElems = $( itemElems );
51			
52			filter.find('.bt-btn-filter').each( function( i, button ) {
53				var button = $(this),
54				filterValue = $(this).attr('data-filter');
55				
56				if ( !filterValue ) {
57					// do not update 'any' buttons
58					return;
59				}
60				
61				var count = contElems.filter( filterValue ).length;
62				button.find('.bt-count').text( count );
63			});
64			
65		}
66		
67		
68		loadMore(initShow); //execute function onload
69		
70		function loadMore(toShow) {
71			
72			if ( showLoadMore == 0 ) {
73				// do not show load more button
74				return;
75			}
76			
77			container.find('.iso-hidden').removeClass('iso-hidden');
78
79			var hiddenElems = iso.filteredItems.slice(toShow, iso.filteredItems.length).map(function(item) {
80				return item.element;
81			});
82			$(hiddenElems).addClass('iso-hidden');
83			container.isotope('layout');
84			
85			var count = hiddenElems.length;
86			loadmore.find('.bt-count').text( count );
87			
88			//when no more to load, hide show more button
89			if (hiddenElems.length == 0) {
90				loadmore.parent().hide();
91			} else {
92				loadmore.parent().show();
93			};
94		}
95		
96		//when load more button clicked
97		loadmore.click(function(e) {
98			e.preventDefault();
99			if (filter.data('clicked')) {
100				//when filter button clicked, set initial value for counter
101				counter = initShow;
102				filter.data('clicked', false);
103			} else {
104				counter = counter;
105			};
106			counter = counter + initLoad;
107			
108			loadMore(counter);
109		});
110
111		//when filter button clicked
112		filter.click(function() {
113			$(this).data('clicked', true);
114			loadMore(initShow);
115		});
116	});
117});