/** Which tool's colour palette is currently open, if any. */
export type PresentPaletteKey = 'pen' | 'highlighter';
/** DOM getters {@link PresentToolbarChrome.attach} needs from the component. */
export interface PresentToolbarChromeTargets {
    /**
     * The positioned show surface the bar floats over. Used only for the
     * bottom-trigger-zone fast path; a missing container still shows the bar on
     * any movement, exactly as React's wrapper does.
     */
    getContainer: () => HTMLElement | null;
    /** The bar itself, so a mousedown outside it can close an open palette. */
    getToolbar: () => HTMLElement | null;
}
export declare class PresentToolbarChrome {
    #private;
    /** Whether the bar is currently faded in and accepting pointer events. */
    visible: boolean;
    /** Milliseconds since the show started, refreshed once a second. */
    elapsedMs: number;
    /** The open colour palette, or `null` when both are closed. */
    palette: PresentPaletteKey | null;
    /**
     * Wire the document listeners and the one-second tick. Returns a teardown,
     * so a component can hand it straight to `$effect`.
     */
    attach(targets: PresentToolbarChromeTargets): () => void;
    /** Pointer entered the bar: pin it open until the pointer leaves again. */
    enter(): void;
    /** Pointer left the bar: restart the auto-hide countdown. */
    leave(): void;
    /**
     * PowerPoint's Ctrl+H: flip the show chrome. Deliberately the same `visible`
     * flag auto-hide writes, and it re-arms the countdown when it reveals the bar,
     * so the shortcut leaves the toolbar in a state the pointer can still govern.
     */
    toggleVisible(): void;
    /** Open `key`'s palette, or close it when it is already the open one. */
    togglePalette(key: PresentPaletteKey): void;
    /** Close both palettes (after picking a colour or choosing a tool). */
    closePalettes(): void;
}
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