import { SyntheticEvent } from './synthetic-event';
import type { HitTestRoot, NativeEventBinding, SyntheticEventTarget } from './types';
export declare class SyntheticEventManager {
    private _rootNode?;
    get rootNode(): HitTestRoot | undefined;
    set rootNode(value: HitTestRoot | undefined);
    binding?: NativeEventBinding;
    /**
     * 主指针状态
     */
    private primaryPointerState;
    /**
     * 滚轮状态
     */
    private wheelState;
    flushNativeEvents(): void;
    private handleWheelEvent;
    private handlePointerEvents;
    private dispatchEventAtTarget;
    dispatchEvent(event: SyntheticEvent<SyntheticEventTarget, Event>): boolean;
    private shouldPropagate;
    private createSyntheticPointerEvent;
    private static instances;
    static findInstance(root: HitTestRoot): SyntheticEventManager | undefined;
}