https://www.filmquestfest.com/wp-content/themes/eventerra/js/jquery.om.sticky.sidebar.js?ver=6.5.12

1(function() {
2  var $, win;
3
4  $ = this.jQuery || window.jQuery;
5  
6  $win=$(window);
7
8  $.fn.omStickSidebar = function(opts) {
9  	
10    if (opts == null) {
11      opts = {};
12    }
13
14  	if(opts.disableOnTouch == null || opts.disableOnTouch == true) {
15  		if(!!('ontouchstart' in window)) {
16  			return this;
17  		}
18  	}
19  	    
20    var topGapEl, topGap, topGapH, minWidth;
21    
22    topGapEl=(opts.topGapEl == null ? false : $(opts.topGapEl));
23    topGap=(opts.topGap == null ? 0 : $(opts.topGap))
24  	topGapH=topGap;
25  	
26  	minWidth=(opts.minWidth == null ? false : opts.minWidth);
27
28		var fn=function($el) {
29			var $container=(opts.container == null ? $el.parent() : $(opts.container));
30			
31			var containerH, elH, stuckMode=false, lastScroll, containerOffset, windowH, elW, elOffset, windowW, scrollTimer, scrolling;
32			
33			var refreshHeight=function(){
34				var pos=$el.css('position');
35				if(pos == 'static' || pos == 'relative') {
36					elW=$el.width();
37				} else {
38					var $tmp=$el.clone();
39					$tmp.css({
40						visibility: 'hidden',
41						position: 'absolute',
42						top: 0,
43						left: 0,
44						right: 0,
45						width: 'auto',
46					}).insertBefore($el);
47					elW=$tmp.width();
48					$tmp.remove();
49					$el.css('width',elW+'px');
50				}
51
52				containerH=$container.height();
53				elH=$el.outerHeight();
54				var offset=$container.offset();
55				containerOffset=offset.top;
56				windowH=$win.height();
57				windowW=$win.width();
58				if(topGapEl) {
59					topGapH=topGap+topGapEl.height();
60				}
61			}
62			refreshHeight();
63			$('window, img').load(refreshHeight);
64			$win.resize(refreshHeight);
65
66			var lightRefreshHeight=function(){
67				containerH=$container.height();
68				elH=$el.outerHeight();
69			}
70						
71			if(minWidth) {
72				$win.resize(function(){
73					if(windowW < minWidth && stuckMode != false ) {
74						$el.css({
75							position: 'relative',
76							top: 'auto',
77							bottom: 'auto',
78							width: 'auto'
79						});
80						stuckMode=false;
81					}
82				});
83			}
84			
85			$win.scroll(function(){
86				if(minWidth && windowW < minWidth ) {
87					return;
88				}
89
90				if(!scrolling) {
91					lightRefreshHeight();
92				}
93				
94				scrolling=true;
95				clearTimeout(scrollTimer);
96				scrollTimer=setTimeout(function(){
97					scrolling=false;
98				},1000);
99
100				
101				if(elH == containerH) {
102					return;
103				}
104				
105				var direction;
106				scroll=$win.scrollTop();
107				if(lastScroll == null || lastScroll <= scroll) {
108					direction='down';
109				} else {
110					direction='up';
111				}
112				
113				if(elH > windowH) {
114					if(direction == 'down' && ((stuckMode == false && scroll + windowH > containerOffset + elH && scroll + windowH < containerOffset + containerH) || stuckMode == 'absolute' && scroll + windowH > containerOffset + elH + elOffset )) {
115						var bottom=0;
116						$el.css({
117							position: 'fixed',
118							top: 'auto',
119							bottom: bottom+'px',
120							width: elW+'px'
121						});
122						stuckMode='bottom';
123					} else if(direction == 'down' && stuckMode == 'bottom' && scroll + windowH > containerOffset + containerH) {
124						var top=containerH - elH;
125						elOffset=top;
126						$el.css({
127							position: 'absolute',
128							top: top+'px',
129							bottom: 'auto',
130							width: elW+'px'
131						});
132						stuckMode='absolute-bottom';
133					} else if((direction == 'up' && stuckMode == 'bottom') || (direction == 'down' && stuckMode == 'top')) {
134						var offset=$el.offset();
135						var top=offset.top - containerOffset + (lastScroll - scroll);
136						elOffset=top;
137						$el.css({
138							position: 'absolute',
139							top: top+'px',
140							bottom: 'auto',
141							width: elW+'px'
142						});
143						stuckMode='absolute';
144					} else if(direction == 'up' && (stuckMode == 'absolute' || stuckMode == 'absolute-bottom') && scroll < containerOffset + elOffset - topGapH) {
145						var top=topGapH;
146						$el.css({
147							position: 'fixed',
148							top: top+'px',
149							bottom: 'auto',
150							width: elW+'px'
151						});
152						stuckMode='top';
153					} else if(direction == 'up' && stuckMode == 'top' && scroll < containerOffset - topGapH) {
154						$el.css({
155							position: 'relative',
156							top: 'auto',
157							bottom: 'auto',
158							width: 'auto'
159						});
160						stuckMode=false;
161					}
162				} else {
163					if((direction == 'down' && stuckMode == false && scroll > containerOffset - topGapH) || (direction == 'up' && stuckMode == 'absolute-bottom' && scroll < containerOffset + elOffset - topGapH)) {
164						var top=topGapH;
165						$el.css({
166							position: 'fixed',
167							top: top+'px',
168							bottom: 'auto',
169							width: elW+'px'
170						});
171						stuckMode='top';
172					}

172 else if(direction == 'up' && stuckMode == 'top' && scroll < containerOffset - topGapH) {
173						$el.css({
174							position: 'relative',
175							top: 'auto',
176							bottom: 'auto',
177							width: 'auto'
178						});
179						stuckMode=false;
180					} else if(direction == 'down' && stuckMode == 'top' && scroll + elH + topGapH > containerOffset + containerH) {
181						var top=containerH - elH;
182						elOffset=top;
183						$el.css({
184							position: 'absolute',
185							top: top+'px',
186							bottom: 'auto',
187							width: elW+'px'
188						});
189						stuckMode='absolute-bottom';
190					}
191				}
192				
193				lastScroll=scroll;
194			});
195			
196		}
197    
198    for (i = 0, len = this.length; i < len; i++) {
199      elm = this[i];
200      fn($(elm));
201    }
202    return this;
203  };
204
205}).call(this);