lazyLoading.js

define([
    'jquery'
],
function($) {
    return function() {
        var self = this;
        if (!self.sprite && self.lasyEmoji[0]) {
            var pickerTop = self.picker.offset().top,
                pickerBottom = pickerTop + self.picker.height() + 20;
            self.lasyEmoji.each(function() {
                var e = $(this), top = e.offset().top;
                if (top > pickerTop && top < pickerBottom) {
                    e.attr("src", e.data("src")).removeClass("lazy-emoji");
                }
            })
            self.lasyEmoji = self.lasyEmoji.filter(".lazy-emoji");
        }
    }
});