Function makeEventable

codebase/sources/dhtmlxscheduler.js:1989–2047

(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();
      }
    };