https://ianism.com/wp-content/plugins/home-page-banner-for-astra-t…/js/home-page-banner.js?ver=9b747002483a

1(function($){
2
3	/**
4	 * Home Page Banner
5	 *
6	 * @class HomePageBanner
7	 * @since 1.0
8	 */
9	HomePageBanner = {
10		
11		/**
12		 * Initializes a Home Page Banner.
13		 *
14		 * @since 1.0
15		 * @method init
16		 */ 
17		init: function()
18		{
19			// Init Full Screen height.
20			HomePageBanner._initFullScreenHeight();
21		},
22
23		/**
24		 * Fires when the Banner full screen selected.
25		 *
26		 * @since 1.0.0
27		 * @access private
28		 * @method _initFullScreenHeight
29		 */ 
30		_initFullScreenHeight: function()
31		{
32			// Set up the resize timer
33			var ResizeTime,
34			    win     = $(window);
35
36			if ( $('.ast-full-home-page-banner')[0] ) {
37				// Initiate full window height on resize
38				HomePageBanner._homePageFullBanner();
39
40				var width = win.width();
41				win.resize(function() {
42					if(win.width() != width){
43						clearTimeout(ResizeTime);
44						ResizeTime = setTimeout(HomePageBanner._homePageFullBanner, 200);
45						width = win.width();
46					}
47				});
48				
49				win.on( "orientationchange", function( event ) {
50					if(win.width() != width){
51						clearTimeout(ResizeTime);
52						ResizeTime = setTimeout(HomePageBanner._homePageFullBanner, 200);
53						width = win.width();
54					}
55				});
56			}
57		},
58		/**
59		 * Fires when the Home Page Banner full screen selected.
60		 *
61		 * @since 1.0.0
62		 * @access private
63		 * @method _homePageFullBanner
64		 */ 
65		_homePageFullBanner: function()
66		{
67			// If we're not using a full screen element, bail.
68			if ( ! $( '.ast-full-home-page-banner' ).length )
69				return;
70			
71			// Set up some variables
72			var window_height = $( window ).height();
73			
74			// Get any space above our page header
75			var offset = $(".ast-full-home-page-banner").offset().top;
76
77			// Apply the height to our div
78			$( '.ast-full-home-page-banner' ).css( 'height', window_height - offset + 'px' );
79
80		},
81	}
82
83	/* Initializes the Astra Advanced Headers. */
84	$(function(){
85		HomePageBanner.init();
86	});
87
88})(jQuery);