import { TypedEvent } from './typed-event';
type MIMEType = 'text/html' | 'text/plain' | 'image/png' | 'image/jpeg';
type CopiedContent = Array<{
    type: MIMEType;
    data: string | Blob;
}>;
export declare class ClipboardSyncManager {
    remoteClipboardData: string | Blob;
    copied: TypedEvent<CopiedContent>;
    private targets;
    /**
     * @description
     * @param elements 需要监听有效交互的元素
     * @param listenOnGlobal 默认全局监听document.body
     */
    constructor(elements?: HTMLElement[], listenOnGlobal?: boolean);
    destroy(): void;
    syncToClipboard(data: string | Blob): Promise<boolean>;
    private detectLegalUserGesture;
    private handleFocusSyncData;
    private clearLegalUserGestureEvent;
    private detectionBootstrap;
    private clearEventsOnTargets;
    private getDataFromClipboard;
    private syncFromClipboard;
}
export {};