Function makeEventable

codebase/sources/dhtmlxscheduler.es.js:1985–2043

(obj)

  return eventStorage;
};
function makeEventable(obj) {
  const eventHost = new EventHost();
  obj.attachEvent = function(eventName, handler, settings) {
    eventName = "ev_" + eventName.toLowerCase();
    if (!eventHost.listeners[eventName]) {
      eventHost.listeners[eventName] = createEventStorage(this);
    }
    if (settings && settings.thisObject) {
      handler = handler.bind(settings.thisObject);
    }
    const innerId = eventHost.listeners[eventName].addEvent(handler, settings);
    let handlerId = eventName + ":" + innerId;
    if (settings && settings.id) {
      handlerId = settings.id;
    }
    return handlerId;
  };
  obj.attachAll = function(callback) {
    this.attachEvent("listen_all", callback);
  };
  obj.callEvent = function(name, eventArguments) {
    if (eventHost._silent_mode)
      return true;
    const handlerName = "ev_" + name.toLowerCase();
    const listeners = eventHost.listeners;
    if (listeners["ev_listen_all"]) {
      listeners["ev_listen_all"].apply(this, [name].concat(eventArguments));
    }
    if (listeners[handlerName])
      return listeners[handlerName].apply(this, eventArguments);
    return true;
  };
  obj.checkEvent = function(name) {
    const listeners = eventHost.listeners;
    return !!listeners["ev_" + name.toLowerCase()];
  };
  obj.detachEvent = function(id) {
    if (id) {
      let listeners = eventHost.listeners;
      for (const i in listeners) {
        listeners[i].removeEvent(id);
      }
      const list = id.split(":");
      listeners = eventHost.listeners;
      if (list.length === 2) {
        const eventName = list[0];
        const eventId = list[1];
        if (listeners[eventName]) {
          listeners[eventName].removeEvent(eventId);
        }
      }
    }
  };
  obj.detachAllEvents = function() {
    for (const name in eventHost.listeners) {
      eventHost.listeners[name].clear();
    }
  };