devdocs/assets/javascripts/views/misc/notif.js

// TODO: This file was created by bulk-decaffeinate.
// Sanity-check the conversion and remove this comment.
/*
 * decaffeinate suggestions:
 * DS002: Fix invalid constructor
 * DS206: Consider reworking classes to avoid initClass
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/main/docs/suggestions.md
 */
const Cls = (app.views.Notif = class Notif extends app.View {
  static initClass() {
    this.className = '_notif';
    this.activeClass = '_in';
    this.attributes =
      {role: 'alert'};
  
    this.defautOptions =
      {autoHide: 15000};
  
    this.events =
      {click: 'onClick'};
  }

  constructor(type, options) {
    this.onClick = this.onClick.bind(this);
    this.type = type;
    if (options == null) { options = {}; }
    this.options = options;
    this.options = $.extend({}, this.constructor.defautOptions, this.options);
    super(...arguments);
  }

  init() {
    this.show();
  }

  show() {
    if (this.timeout) {
      clearTimeout(this.timeout);
      this.timeout = this.delay(this.hide, this.options.autoHide);
    } else {
      this.render();
      this.position();
      this.activate();
      this.appendTo(document.body);
      this.el.offsetWidth; // force reflow
      this.addClass(this.constructor.activeClass);
      if (this.options.autoHide) { this.timeout = this.delay(this.hide, this.options.autoHide); }
    }
  }

  hide() {
    clearTimeout(this.timeout);
    this.timeout = null;
    this.detach();
  }

  render() {
    this.html(this.tmpl(`notif${this.type}`));
  }

  position() {
    const notifications = $$(`.${app.views.Notif.className}`);
    if (notifications.length) {
      const lastNotif = notifications[notifications.length - 1];
      this.el.style.top = lastNotif.offsetTop + lastNotif.offsetHeight + 16 + 'px';
    }
  }

  onClick(event) {
    if (event.which !== 1) { return; }
    const target = $.eventTarget(event);
    if (target.hasAttribute('data-behavior')) { return; }
    if ((target.tagName !== 'A') || target.classList.contains('_notif-close')) {
      $.stopEvent(event);
      this.hide();
    }
  }
});
Cls.initClass();