file 1.js

(function(window) {
  'use strict';

  /**
   * @constructor
   */

  function ProactiveController(main) {
    this.main = main;
    this.helpers = this.helpers || new window.chat_custom_design.Helpers(this.options, this.target);
  }

  ProactiveController.prototype = {
    visitorClearsProactive: function() {
      //remove timer & reset since user dismissed
      SnapEngage.clearProactiveChatAutocloseTimeout();
      SnapEngageChat.setNoProactiveChatCookie();
    },

    finishProactiveTimeout: function() {
      // Because this is called from within animate object, we need to provide a reference to app.js again
      this.app = SnapEngage.getCustomDesignUI();
      // Remove proactive message from visitor view (refresh the app)
      this.app.refresh();
      //stop the mew message flashing in the browser tab
      this.main.setVisitorNotification(false);
      // Remove proactive message from chat transcript history
      SnapEngageChat.reInit();
    },
  };

  window.chat_custom_design = window.chat_custom_design || {};
  window.chat_custom_design.ProactiveController = ProactiveController;
})(window);