Module EventSlotAPI

createMultiEventSlot

• createMultiEventSlot<T>(): MultiEventSlotOwner<T>

• Creates an object that will have event slots for each property of the template type T. The caller will be the owner of the event slots; that is, it will be able to fire events and clear all listeners when necessary. This allows the following code:

  type IMyEvents =
  {
      click: () => void;
      change: ( newVal: number) => void;
  }
  
  interface IMyClass
  {
      events: MultiEventSlot<IMyEvents>;
      doSomething(): void;
  }
  
  class MyClass implements IMyClass
  {
      private _events = createMultiEventSlot<IMyEvents>();
      public get events(): MultiEventSlot<IMyEvents> { return this._events; }
  
      public doSomething(): void { this._events.change.fire(1);}
  }
  
  let obj: IMyClass = new MyClass();
  obj.events.change.attach( (n: number) => console.log(n));
  obj.doSomething();
  

  Type parameters

  • T

  Returns MultiEventSlotOwner<T>