/**
 * Extension chrome: the widget slots above/below the editor and the custom
 * footer/header overrides that extensions can install via the
 * ExtensionUIContext. Extracted from interactive-mode.ts.
 */
import { type Component, Container, type Slot, type TUI } from "@kolisachint/hoocode-tui";
import type { ExtensionWidgetOptions } from "../../core/extensions/index.js";
import type { FooterDataProvider } from "../../core/footer-data-provider.js";
import { type Theme } from "./theme/theme.js";
type DisposableComponent = Component & {
    dispose?(): void;
};
/** The slice of the interactive mode the chrome renders into. */
export interface ExtensionChromeDeps {
    ui: TUI;
    widgetContainerAbove: Container;
    widgetContainerBelow: Container;
    headerContainer: Container;
    /** The built-in footer component (restored when the custom footer is removed). */
    footer: Component;
    /** The root child the footer lives in; its occupant is what swaps. */
    footerSlot: Slot;
    footerDataProvider: FooterDataProvider;
    /** The built-in header, once init() created it (undefined before that). */
    getBuiltInHeader(): Component | undefined;
    isToolOutputExpanded(): boolean;
}
export declare class ExtensionChrome {
    private readonly deps;
    private widgetsAbove;
    private widgetsBelow;
    /** Custom footer set by an extension; undefined = built-in footer. */
    private footerOverride;
    /** Custom header set by an extension; undefined = built-in header. */
    private headerOverride;
    constructor(deps: ExtensionChromeDeps);
    /** The extension-installed header, if any (combined with the built-in by callers). */
    get customHeader(): DisposableComponent | undefined;
    setWidget(key: string, content: string[] | ((tui: TUI, thm: Theme) => DisposableComponent) | undefined, options?: ExtensionWidgetOptions): void;
    clearWidgets(): void;
    /**
     * Render all extension widgets to the widget container.
     */
    renderWidgets(): void;
    private renderWidgetContainer;
    /**
     * Set a custom footer component, or restore the built-in footer.
     */
    setFooter(factory: ((tui: TUI, thm: Theme, footerData: FooterDataProvider) => DisposableComponent) | undefined): void;
    /**
     * Set a custom header component, or restore the built-in header.
     */
    setHeader(factory: ((tui: TUI, thm: Theme) => DisposableComponent) | undefined): void;
    /** Remove custom footer/header and all widgets (session reset). */
    reset(): void;
}
export {};
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