https://www.bitrix24.eu/bitrix/content_vendors/bitrix24_ui/js/accordion.js

1;(function() {
2	'use strict';
3
4	function UIBitrix24AccordionInit()
5	{
6		this.attributes = {
7			active: 'data-active',
8			accordion: 'data-bx-ui-accordion',
9			item: 'data-bx-ui-accordion-item',
10			clicker: 'data-bx-ui-accordion-clicker',
11			content: 'data-bx-ui-accordion-content',
12		};
13
14		this.init();
15	}
16
17	UIBitrix24AccordionInit.prototype = {
18		init: function() {
19			let accordions = document.querySelectorAll('[' + this.attributes.accordion + ']');
20
21			for (let i = 0; i < accordions.length; i++)
22			{
23				let accordion = accordions[i];
24
25				if (!BX.type.isElementNode(accordion))
26				{
27					continue;
28				}
29
30				let items = accordion.querySelectorAll('[' + this.attributes.item + ']');
31
32				for (let j = 0; j < items.length; j++)
33				{
34					let item = items[j];
35
36					if (!BX.type.isElementNode(item))
37					{
38						continue;
39					}
40
41					let clicker = item.querySelector('[' + this.attributes.clicker + ']');
42					let content = item.querySelector('[' + this.attributes.content + ']');
43
44					if (
45						!BX.type.isElementNode(clicker) ||
46						!BX.type.isElementNode(content)
47					)
48					{
49						continue;
50					}
51
52					let _this = this;
53
54					BX.bind(clicker, 'click', function() {
55						if (item.hasAttribute(_this.attributes.active))
56						{
57							item.removeAttribute(_this.attributes.active);
58						}
59						else
60						{
61							item.setAttribute(_this.attributes.active, '');
62						}
63					});
64				}
65			}
66		}
67	};
68
69	if (window.frameCacheVars !== undefined)
70	{
71		BX.addCustomEvent('onFrameDataReceived', function() {
72			(new UIBitrix24AccordionInit());
73		});
74	}
75	else
76	{
77		BX.ready(function() {
78			(new UIBitrix24AccordionInit());
79		});
80	}
81})();