/**
 * Shared TUI extension surface state (header/footer widgets, status slots).
 */
import type { Component } from '@earendil-works/pi-tui';
export declare class TuiExtensionSurface {
    readonly headerWidgets: Map<string, string[]>;
    readonly footerWidgets: Map<string, string[]>;
    readonly headerWidgetComponents: Map<string, Component & {
        dispose?(): void;
    }>;
    readonly footerWidgetComponents: Map<string, Component & {
        dispose?(): void;
    }>;
    readonly statusSlots: Map<string, string>;
    customHeader: (Component & {
        dispose?(): void;
    }) | undefined;
    customFooter: (Component & {
        dispose?(): void;
    }) | undefined;
    getHeaderLines(): string[];
    getFooterLines(): string[];
    getHeaderComponents(): Array<Component & {
        dispose?(): void;
    }>;
    getFooterComponents(): Array<Component & {
        dispose?(): void;
    }>;
    disposeWidgetComponents(): void;
    getStatusParts(): string[];
}