export interface ClipboardWriter {
    writeText(text: string): Promise<void>;
}
export interface ClipboardFeedbackScheduler {
    setTimeout(callback: () => void, delay: number): unknown;
    clearTimeout(handle: unknown): void;
}
export declare function writeClipboardText(text: string, clipboard?: ClipboardWriter | undefined): Promise<boolean>;
/**
 * Owns temporary copied feedback for controls that execute browser clipboard writes.
 *
 * A monotonically increasing request id prevents a late clipboard promise from
 * mutating a disconnected owner, stale content, or a newer copy request.
 */
export declare class ClipboardFeedbackController {
    private readonly onCopiedChange;
    private readonly copiedDuration;
    private readonly scheduler;
    private active;
    private copied;
    private requestId;
    private timer;
    constructor(onCopiedChange: (copied: boolean) => void, copiedDuration?: number, scheduler?: ClipboardFeedbackScheduler);
    connect(): void;
    disconnect(): void;
    reset(): void;
    copy(text: string, clipboard?: ClipboardWriter | undefined): Promise<boolean | undefined>;
    private clearTimer;
    private setCopied;
}
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