import type { Element } from "./elements.js";
import type { InputSource, KeyEvent } from "./input/types.js";
import type { OutputTarget } from "./output/types.js";
import { Frame } from "./frame.js";
export declare class Screen {
    private output;
    private input;
    private width;
    private height;
    constructor(opts: {
        output: OutputTarget;
        input: InputSource;
        width: number;
        height: number;
    });
    render(root: Element, label?: string): Frame;
    nextKey(): Promise<KeyEvent>;
    nextLine(prompt: string): Promise<string>;
    size(): {
        width: number;
        height: number;
    };
    /** Adopt a new terminal size. Layout reads these on every render, so an app
     *  that watches SIGWINCH can keep panes correct without restarting. */
    resize(width: number, height: number): void;
    runLoop<S>(opts: {
        initialState: S;
        render: (state: S) => Element | Promise<Element>;
        handleKey: (state: S, event: KeyEvent) => S | Promise<S>;
        isDone: (state: S) => boolean | Promise<boolean>;
        label?: string;
    }): Promise<S>;
    destroy(): void;
}