@actualwave/event-dispatcher/TypeDefinition.d.ts

EventDispatcher is a JavaScript class that adds events support to custom objects.

export type EventObject = {
    type: string;
    data?: unknown;
};
export type DispatchedEvent = EventObject & {
    stopPropagation: () => void;
    stopImmediatePropagation: () => void;
};
export type EventType = string | EventObject;
export type EventListener = (event: DispatchedEvent) => void;
export type EventProcessor = (event: EventObject) => EventObject;
export interface IEventDispatcher {
    addEventListener(eventType: string, listener: EventListener, priority?: number): void;
    hasEventListener(eventType: string): boolean;
    removeEventListener(eventType: string, listener: EventListener): void;
    removeAllEventListeners(eventType: string): void;
    dispatchEvent(event: EventType, data?: unknown): void;
}