https://lumicre.com/wp-content/themes/lumicre/js/feature/cxre.feature.scrollvis-func-executor.js?ver=1.0

1
2// handler for custom div scroll target dynamic callback execution..
3(function($) {
4    var self = this;
5    var cxre_lazyload_targets = undefined;
6    var hasScrollMonitorForDynamics = false;
7
8    window.registerLazyLoad = function($el, f_cb) {
9        if (typeof(cxre_lazyload_targets)==='undefined') {
10            cxre_lazyload_targets = {};
11            setTimeout(lazyLoadDynamic_ScrollHandler, 700);
12        }
13        var new_key = "key_"+(Object.keys(cxre_lazyload_targets).length+1);
14        cxre_lazyload_targets[new_key]={el: $el, cb: f_cb};
15    };
16
17    function lazyLoadDynamic_ScrollHandler() {
18        if (!hasScrollMonitorForDynamics) {
19            hasScrollMonitorForDynamics = true;
20            setTimeout(function() {
21                $(window).scroll(lazyLoadDynamic_ScrollHandler);
22            }, 200);
23        }
24        var keys = Object.keys(cxre_lazyload_targets);
25        if (keys.length<1) {
26            $(window).off('scroll',lazyLoadDynamic_ScrollHandler);
27            return;
28        }
29        var av_removables=[];
30        for (var i = 0;i<keys.length;i++) {
31            var key = keys[i];
32            var item = cxre_lazyload_targets[key];
33            if (isScrolledIntoView(item.el)) {
34                if (typeof(item.cb)==='function') {
35                    item.cb();
36                }
37                console.log("Executing: "+key);
38                av_removables.push(key);
39            }
40        }
41        for (var i=0;i<av_removables.length;i++) {
42            delete cxre_lazyload_targets[av_removables[i]];
43        }
44    }
45
46    function init() {
47        if (typeof(window.CXRE_FEATURES)==='undefined') CXRE_FEATURES=[];
48        CXRE_FEATURES.push(this);
49    }
50    init();
51
52})(jQuery);