/**
 * Per-row composition context provided by `Legend.Row`. Actions placed inside
 * the row resolve their target layer from here instead of taking a `layerId`
 * prop, and the opacity compound (`Legend.Opacity.Item` / `.Inline`) shares
 * its open state through it.
 */
export interface LegendRowContextValue {
    layerId: string;
    opacityOpen: boolean;
    setOpacityOpen: (open: boolean) => void;
}
export declare const LegendRowContext: import('react').Context<LegendRowContextValue | null>;
/** Nearest `Legend.Row` composition context, or `null` outside a row. */
export declare function useLegendRow(): LegendRowContextValue | null;
/** Per-group composition context provided by `Legend.Group` (the group id). */
export declare const LegendGroupContext: import('react').Context<string | null>;
/** Nearest `Legend.Group` id, or `null` outside a group. */
export declare function useLegendGroupId(): string | null;
/**
 * Overflow-menu controller for `Legend.RowMenu` / `Legend.GroupMenu` /
 * `Legend.PanelMenu`. Async items (e.g. `Legend.ZoomTo`) use `setBusy` to keep
 * the menu open and show in-item loading feedback, then `close()` when the
 * handler settles. Prefer `runAsyncMenuAction` over calling these by hand.
 */
export interface LegendMenuController {
    /** Reactive busy flag for UI (spinner / disabled). */
    busy: boolean;
    /**
     * Synchronous busy check (ref-backed) — use this to gate clicks so a second
     * press before React re-renders cannot start another async action.
     */
    isBusy: () => boolean;
    setBusy: (busy: boolean) => void;
    close: () => void;
}
export declare const LegendMenuContext: import('react').Context<LegendMenuController | null>;
/** Nearest overflow-menu controller, or `null` outside a row/group menu. */
export declare function useLegendMenu(): LegendMenuController | null;