https://kai-europe.com/beautycare/wp-content/themes/javax/assets/js/lib/jpreloader.js?ver=2.1

1/*
2 * jPreLoader - jQuery plugin
3 * Create a Loading Screen to preload images and content for you website
4 *
5 * Name:			jPreLoader.js
6 * Author:		Kenny Ooi - http://www.inwebson.com
7 * Date:			July 11, 2012
8 * Version:		2.1
9 * Example:		http://www.inwebson.com/demo/jpreloader-v2/
10 *
11 */
12
13(function ($) {
14    var items = new Array(),
15        errors = new Array(),
16        onComplete = function () {
17        },
18        current = -1;
19
20    var jpreOptions = {
21        splashVPos: '35%',
22        loaderVPos: '75%',
23        splashID: '#jpreContent',
24        showSplash: true,
25        showPercentage: true,
26        autoClose: true,
27        closeBtnText: 'Start!',
28        onetimeLoad: false,
29        debugMode: false,
30        splashFunction: function () {
31        }
32    }
33
34    //cookie
35    var getCookie = function () {
36        if (jpreOptions.onetimeLoad) {
37            var cookies = document.cookie.split('; ');
38            for (var i = 0, parts; (parts = cookies[i] && cookies[i].split('=')); i++) {
39                if ((parts.shift()) === "jpreLoader") {
40                    return (parts.join('='));
41                }
42            }
43            return false;
44        } else {
45            return false;
46        }
47
48    }
49    var setCookie = function (expires) {
50        if (jpreOptions.onetimeLoad) {
51            var exdate = new Date();
52            exdate.setDate(exdate.getDate() + expires);
53            var c_value = ((expires == null) ? "" : "expires=" + exdate.toUTCString());
54            document.cookie = "jpreLoader=loaded; " + c_value;
55        }
56    }
57
58    //get all images from css and <img> tag
59    var getImages = function (element) {
60        $(element).find('*:not(script)').each(function () {
61            var url = "";
62
63            if ($(this).css('background-image').indexOf('none') == -1 && $(this).css('background-image').indexOf('-gradient') == -1) {
64                url = $(this).css('background-image');
65                if (url.indexOf('url') != -1) {
66                    var temp = url.match(/url\((.*?)\)/);
67                    url = temp[1].replace(/\"/g, '');
68                }
69            } else if ($(this).get(0).nodeName.toLowerCase() == 'img' && typeof($(this).attr('src')) != 'undefined') {
70                url = $(this).attr('src');
71            }
72
73            if (url.length > 0) {
74                items.push(url);
75            }
76        });
77    }
78
79    var getVideos = function (element) {
80        $(element).find('video').each(function (num, el) {
81            el.load();
82            el.onloadeddata = function () {
83                completeLoading();
84            };
85        });
86    };
87
88    var getIframes = function (element) {
89        $(element).find('iframe').each(function (num, el) {
90            $(el).ready(function () {
91                completeLoading();
92            });
93        });
94    };
95
96    var per = 0, curPer = 0,
97        ticks = 5;
98
99    var changePercentage = function () {
100        if (curPer < per) {
101            curPer += parseInt((per - curPer) / ticks);
102            curPer = Math.min(curPer, 100);
103            ticks--;
104        }
105        $('.preloader .percentage').text(curPer);
106        $('#circle').circleProgress('value', curPer / 100);
107        if (curPer < 100) {
108            setTimeout(function () {
109                changePercentage();
110            }, 100);
111        }
112    };
113
114    //create preloaded image
115    var preloading = function () {
116        completeLoading();
117        for (var i = 0; i < items.length; i++) {
118            if (loadImg(items[i]));
119        }
120        changePercentage();
121    }
122    var loadImg = function (url) {
123        var imgLoad = new Image();
124        $(imgLoad)
125            .load(function () {
126                completeLoading();
127            })
128            .error(function () {
129                errors.push($(this).attr('src'));
130                completeLoading();
131            })
132            .attr('src', url);
133    };
134
135    //update progress bar once image loaded
136    var completeLoading = function () {
137        current++;
138        // var length = items.length + $('video').length + $('iframe').length;
139        var length = items.length;
140        if (length == 0) {
141            current++;
142        }
143
144        per = Math.round((current / length) * 100);
145        // $('.preloader .line .inner').stop().animate({
146        //     width: per + '%'
147        // }, 500, 'linear');
148
149        if (jpreOptions.showPercentage) {
150            //     $('.preloader .percentage').text(per);
151            ticks = 7;
152        }
153
154        //if all images loaded
155        if (current >= length) {
156            current = length;

157            setCookie();	//create cookie
158
159            if (jpreOptions.showPercentage) {
160                per = 100;
161                // $('.preloader .percentage').text("100");
162            }
163
164            //fire debug mode
165            if (jpreOptions.debugMode) {
166                var error = debug();
167            }
168
169            //max progress bar
170            // $(jBar).stop().animate({
171            // 	width: '100%'
172            // }, 500, 'linear', function() {
173            // });
174            loadComplete();
175
176        }
177    }
178
179    var loadComplete = function () {
180        onComplete();	//callback function
181    };
182
183    //debug mode
184    var debug = function () {
185        if (errors.length > 0) {
186            var str = 'ERROR - IMAGE FILES MISSING!!!\n\r'
187            str += errors.length + ' image files cound not be found. \n\r';
188            str += 'Please check your image paths and filenames:\n\r';
189            for (var i = 0; i < errors.length; i++) {
190                str += '- ' + errors[i] + '\n\r';
191            }
192            return true;
193        } else {
194            return false;
195        }
196    }
197
198    $.fn.jpreLoader = function (options, callback) {
199        if (options) {
200            $.extend(jpreOptions, options);
201        }
202        if (typeof callback == 'function') {
203            onComplete = callback;
204        }
205
206        //show preloader once JS loaded
207        $('body').css({
208            'display': 'block'
209        });
210
211        return this.each(function () {
212            if (!(getCookie())) {
213                getImages(this);
214                // getVideos(this);
215                // getIframes(this);
216
217                preloading();
218            }
219            else {	//onetime load / cookie is set
220                $(jpreOptions.splashID).remove();
221                onComplete();
222            }
223        });
224    };
225
226})(jQuery);