interface IEventManagement {
    unsubscribe: () => void;
    stopPropagation: () => void;
}
interface ISubscribable<TypedEventHandler> {
    readonly count: number;
    subscribe: (handler: TypedEventHandler) => () => void;
    unsubscribe: (handler: TypedEventHandler) => void;
    one: (handler: TypedEventHandler) => () => void;
    has: (handler: TypedEventHandler) => boolean;
    clear: () => void;
}
interface ISubscription<TypedEventHandler> {
    readonly isExecuted: boolean;
    readonly isOnce: boolean;
    readonly handler: TypedEventHandler;
}
type IEventHandler<TypedEventArgument> = (argument: TypedEventArgument, eventManager: IEventManagement) => void;
type TypedEventArgument = any;
type TypedEventHandler = IEventHandler<TypedEventArgument>;
interface IPropagationStatus {
    readonly propagationStopped: boolean;
}
export type IEvent<TypedEventArgument> = ISubscribable<IEventHandler<TypedEventArgument>>;
declare class BaseEventDispatcher<TypedEventArgument> implements IEvent<TypedEventArgument> {
    private _asEventWrapper?;
    protected _subscriptions: ISubscription<TypedEventHandler>[];
    get count(): number;
    subscribe(handler: TypedEventHandler): () => void;
    one(handler: TypedEventHandler): () => void;
    has(handler: TypedEventHandler): boolean;
    unsubscribe(handler: TypedEventHandler): void;
    protected _dispatch(executeAsync: boolean, scope: any, argument: any): IPropagationStatus | null;
    protected createSubscription(handler: TypedEventHandler, isOnce: boolean): ISubscription<TypedEventHandler>;
    protected cleanup(subscription: ISubscription<TypedEventHandler>): void;
    clear(): void;
    dispatch(argument: TypedEventArgument): IPropagationStatus;
    dispatchAsync(argument: TypedEventArgument): void;
    asEvent(): IEvent<TypedEventArgument>;
}
export declare class EventDispatcher<TypedEventArgument> extends BaseEventDispatcher<TypedEventArgument> {
    private readonly _onSubscriptionCountChangeEvent;
    get onSubscriptionCountChangeEvent(): IEvent<{
        count: number;
    }>;
    subscribe(handler: TypedEventHandler): () => void;
    one(handler: TypedEventHandler): () => void;
    unsubscribe(handler: TypedEventHandler): void;
    clear(): void;
}
export {};