trellis/dist/undo-history/react/index.d.ts

Agentic State Engine — event-sourced causal graph with branching, decision traces, and realtime sync for AI-native applications

/**
 * Undo-history React — `useUndoHistory` hook (ADR 0034 wedge 8).
 *
 * Import from `trellis/undo-history/react`:
 *
 *   const undo = useUndoHistory();
 *   undo.actions.push(insertChar, { coalesce: true });
 *   // <button disabled={!undo.state.canUndo} onClick={undo.actions.undo}>
 *   //   Undo {undo.state.undoLabel}
 *   // </button>
 *
 * The core is created once per mount; state flows through
 * `useSyncExternalStore` (same bridge as `trellis/forms/react`).
 *
 * @module trellis/undo-history/react
 */
import type { UndoConfig, UseUndoReturn } from '../core/index.js';
/** Accept either a config (fresh core) or an existing core (shared mount). */
export type UndoInput = UndoConfig | UseUndoReturn;
/**
 * Bind an undo-history core to React. Pass a config for a fresh core, or
 * an existing core to share one mount across adapters.
 */
export declare function useUndoHistory(input?: UndoInput): UseUndoReturn;
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