/**
 * The **Import Menu** — a floating *Import ▾* launcher button anchored to the
 * grid's top-right corner that opens a dropdown of import sources (Excel / CSV /
 * TSV / Paste From Clipboard).
 *
 * It is a **pure UI** component in the same mould as
 * {@link import('./filters-tool-panel').FiltersToolPanel}: it owns no import
 * logic and never touches grid data. Choosing a file-based source opens a
 * hidden `<input type=file>` (so no browser-default file control is ever
 * visible) and forwards the picked {@link File} to its host via
 * {@link ImportMenuDeps.onSelectFile}; the clipboard item calls
 * {@link ImportMenuDeps.onSelectClipboard}. The host (the grid) runs the actual
 * import through the {@link import('../engines/import/import-engine').ImportEngine}.
 *
 * Every visual is class-driven — all colors, spacing, radii and typography come
 * from theme CSS variables (see `import-menu.css.ts`); the component sets no
 * inline styles.
 *
 * @packageDocumentation
 */
import type { IconRenderer } from '../icons/icon-renderer';
import { ImportSourceType } from '../types/import.types';
/** Collaborators the {@link ImportMenu} needs from the grid, injected as a DI bag. */
export interface ImportMenuDeps {
    /** Renders themed, registry-backed icons. */
    readonly iconRenderer: IconRenderer;
    /** The sources to offer, in order (from `GridOptions.import.formats`). */
    readonly getFormats: () => ImportSourceType[];
    /** Invoked with the picked file for a file-based source (Excel/CSV/TSV). */
    readonly onSelectFile: (source: ImportSourceType, file: File) => void;
    /** Invoked when the user chooses *Paste From Clipboard*. */
    readonly onSelectClipboard: () => void;
}
/** Floating Import launcher + dropdown. Opt-in via `GridOptions.import.enabled`. */
export declare class ImportMenu {
    private readonly deps;
    private wrapperEl;
    private launcherEl;
    private menuEl;
    private fileInputEl;
    private itemEls;
    private isOpen;
    /** Source awaiting a file selection from the hidden input. */
    private pendingSource;
    private readonly boundOutsideDown;
    private readonly boundKeydown;
    constructor(deps: ImportMenuDeps);
    /**
     * Builds the launcher, dropdown and hidden file input and appends them to the
     * grid wrapper. Call once per grid instance.
     *
     * @param wrapperEl  - The `.pg-grid` root element the dropdown floats over.
     * @param toolsBarEl - The shared `.pg-grid__tools` bar the launcher docks into
     *                     so it lays out beside other launchers instead of stacking.
     */
    mount(wrapperEl: HTMLElement, toolsBarEl: HTMLElement): void;
    /** Opens the dropdown. Idempotent. */
    open(): void;
    /** Closes the dropdown. Idempotent. */
    close(): void;
    /** Toggles the dropdown. */
    toggle(): void;
    /** Tears down DOM and listeners. */
    destroy(): void;
    private buildLauncher;
    private buildMenu;
    private buildFileInput;
    private onItemActivated;
    private onKeydown;
}
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