https://www.stentor-music.com/common/js/forms/fields/icons/BaseIcon.js?v=255

1; (function (root, factory) {
2    const ns = root.FieldKit = root.FieldKit || {};
3    ns.icons = ns.icons || {};
4    factory(ns);
5})(window, function (FieldKit) {
6    const icons = FieldKit.icons;
7
8    class BaseIcon {
9        /** @type {Field} host */
10        host;
11
12        /** @type {HTMLElement} el */
13        element;
14
15        /**
16         * @param {Field} host
17         */
18        constructor(host) {
19            this.host = host;
20            this.element = this.render();
21            this.bind();
22        }
23
24        /**
25         * Render icon DOM. Must be overridden by subclasses.
26         */
27        render() {
28            throw new Error('render() not implemented');
29        }
30
31        /**
32         * Optional - subclasses add listeners here.
33         */
34        bind() { }
35
36        /** 
37         * Optional - react to error state toggles.
38         * @param {boolean} active
39         */
40        onError(active) { }
41    }
42
43    // namespace export
44    icons.BaseIcon = BaseIcon;
45});