import type { VisualViewOperation, VisualViewSummary } from "../adapters/visual/protocol-contract.js";
import type { CanvasNode } from "../graph-projection.js";
/**
 * A right-click on a row, in viewport coordinates. The rail reports which row
 * was hit and nothing about what the menu should say — `contextMenuFor` owns
 * that, and a rail that also decided it would be a second place to change.
 */
export type TreeRowMenu = (row: {
    readonly kind: "view" | "subject";
    readonly id: string;
}, position: {
    readonly x: number;
    readonly y: number;
}) => void;
export interface ViewTreeProps {
    readonly views: readonly VisualViewSummary[];
    /**
     * The pending changeset's view operations, merged over `views` by
     * `buildViewTree` so staged intent is visible beside landed truth
     * (ADR 0114). Derived from the changeset at the call site, never stored:
     * discarding the operation is the revert.
     */
    readonly stagedViewOperations: readonly VisualViewOperation[];
    readonly activeViewId: string;
    /** Every subject the workspace declares, filtered or not. */
    readonly nodes: readonly CanvasNode[];
    /** What the canvas is drawing, or `null` when it is drawing everything. */
    readonly inViewIds: ReadonlySet<string> | null;
    /** What the active view draws folded, and what each box holds (#473). */
    readonly folded?: ReadonlySet<string>;
    readonly insideCounts?: ReadonlyMap<string, number>;
    readonly filterText: string;
    readonly collapsed: ReadonlySet<string>;
    readonly onFilterChange: (text: string) => void;
    readonly onToggle: (key: string) => void;
    readonly onSelectView: (id: string) => void;
    readonly onClearView: () => void;
    readonly onNewView: () => void;
    readonly onSelectSubject: (id: string) => void;
    readonly onRowMenu: TreeRowMenu;
    /** A viewer, not an author (#298): the new-view affordance is absent. */
    readonly readOnly?: boolean;
    /**
     * Put the whole rail away (#294's shape, other side). Optional: a host that
     * gives no way back should not be able to draw the control that takes it.
     */
    readonly onHide?: () => void;
}
export declare function ViewTree({ views, stagedViewOperations, activeViewId, nodes, inViewIds, folded, insideCounts, filterText, collapsed, onFilterChange, onToggle, onSelectView, onClearView, onNewView, onSelectSubject, onRowMenu, readOnly, onHide, }: ViewTreeProps): import("react").JSX.Element;