import type { CancelCoordinator } from "../../app/controllers/cancel-coordinator.js";
export interface CancelLadderNotice {
    readonly level: "info" | "warn";
    readonly text: string;
    readonly key: string;
    readonly durationMs: number;
}
export interface CancelLadderDeps {
    readonly coordinator: CancelCoordinator;
    readonly overlay: {
        cancelBlockingPrompt(): boolean;
    };
    readonly notify: (notice: CancelLadderNotice) => void;
    readonly requestExit: () => void;
    readonly now?: (() => number) | undefined;
}
export declare class CancelLadder {
    private readonly deps;
    private lastCtrlCAt;
    private lastEscapeAt;
    private lastEscapeHandledAt;
    private readonly now;
    constructor(deps: CancelLadderDeps);
    get escapeArmed(): boolean;
    get quitArmed(): boolean;
    clear(): void;
    disarmEscape(): void;
    interrupt(): void;
    escape(dismissed: boolean): void;
}