https://ecopromaterials.com/js/common/uploader-api-loader.js?q=5a0d37f94bbab018

1(function (window, document) {
2	'use strict';
3
4	if (window.EcoproUploaderApiLoader) {
5		return;
6	}
7
8	var uploaderAsset = '/_res/plani_api/uploader.js';
9	var state = {
10		loading: false,
11		failed: false,
12		callbacks: []
13	};
14
15	function api() {
16		return window.jQuery && window.jQuery.api && window.jQuery.api.uploader;
17	}
18
19	function notify(callbacks, error) {
20		var index;
21
22		for (index = 0; index < callbacks.length; index++) {
23			try {
24				callbacks[index](error);
25			} catch (ignored) {
26			}
27		}
28	}
29
30	function ensure(callback) {
31		var script;
32		var parent;
33		var callbacks;
34		var finished = false;
35
36		if (typeof callback !== 'function') {
37			return;
38		}
39
40		if (typeof api() === 'function') {
41			callback(null);
42			return;
43		}
44
45		if (state.failed) {
46			callback(new Error('uploader asset failed to load'));
47			return;
48		}
49
50		if (state.loading) {
51			state.callbacks.push(callback);
52			return;
53		}
54
55		state.loading = true;
56		state.callbacks.push(callback);
57		script = document.createElement('script');
58		script.type = 'text/javascript';
59		script.async = false;
60		script.src = uploaderAsset;
61		script.onload = script.onreadystatechange = function () {
62			if (script.readyState && script.readyState !== 'loaded' && script.readyState !== 'complete') {
63				return;
64			}
65			finish(typeof api() === 'function' ? null : new Error('uploader API was not registered'));
66		};
67		script.onerror = function () {
68			finish(new Error('uploader asset failed to load'));
69		};
70		parent = document.head || document.getElementsByTagName('head')[0] || document.documentElement;
71		parent.appendChild(script);
72
73		function finish(error) {
74			if (finished) {
75				return;
76			}
77
78			finished = true;
79			state.loading = false;
80			if (error) {
81				state.failed = true;
82			}
83			callbacks = state.callbacks;
84			state.callbacks = [];
85			notify(callbacks, error);
86		}
87	}
88
89	window.EcoproUploaderApiLoader = {
90		ensure: ensure
91	};
92}(window, document));