/**
 * The **Theme Manager panel** — a "Theme" launcher in the top-right tools strip
 * that lets users manage AI-generated themes: apply a saved theme, export the
 * current one, import a theme file, and reset to the base look. It is a pure-UI
 * component in the same mould as {@link import('./import-menu').ImportMenu}: it
 * owns no theme logic and drives everything through the public
 * {@link import('../types/theme-ai.types').PhotonThemeApi} (`gridApi.photonAI`).
 *
 * All styling is class-driven (see `theme-manager.css.ts`); the component sets
 * no inline styles.
 *
 * @packageDocumentation
 */
import type { IconRenderer } from '../icons/icon-renderer';
import type { ToastService } from '../toast/toast-service';
import type { PhotonThemeApi } from '../types/theme-ai.types';
/** Collaborators the {@link ThemeManagerPanel} needs, injected as a DI bag. */
export interface ThemeManagerDeps {
    /** Renders themed, registry-backed icons. */
    readonly iconRenderer: IconRenderer;
    /** Lazily resolves the live theme API (the engine is created after the renderer). */
    readonly getThemeApi: () => PhotonThemeApi;
    /** Lazily resolves the grid's toast service, used to surface action feedback. */
    readonly getToasts: () => ToastService;
}
/** Top-right "Theme" launcher + dropdown for managing saved/exported/imported themes. */
export declare class ThemeManagerPanel {
    private readonly deps;
    private wrapperEl;
    private launcherEl;
    private menuEl;
    private listEl;
    private fileInputEl;
    private isOpen;
    private readonly boundOutsideDown;
    private readonly boundKeydown;
    constructor(deps: ThemeManagerDeps);
    /** Builds the launcher, dropdown and hidden file input. Call once per grid. */
    mount(wrapperEl: HTMLElement, toolsBarEl: HTMLElement): void;
    /** Opens the dropdown, refreshing the saved-themes list from the engine. */
    open(): void;
    /** Closes the dropdown. */
    close(): void;
    /** Toggles the dropdown. */
    toggle(): void;
    /** Tears down DOM and listeners. */
    destroy(): void;
    private buildLauncher;
    private buildMenu;
    private buildActionButton;
    private buildFileInput;
    /** Rebuilds the saved-themes list from the engine's history. */
    private refreshList;
    private onExport;
    private onReset;
    private onFileChosen;
    private download;
    /**
     * Surfaces an action result as a transient toast rather than inline panel
     * text, so feedback stays visible after the dropdown closes and never shifts
     * the menu layout. Errors are shown assertively; everything else as success.
     */
    private notify;
}
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