/**
 * Undo, scoped to the local peer.
 *
 * `prosemirror-history` is wrong for a collaborative document and wrong in a
 * way that is easy to miss: its stack is a list of *steps applied to this
 * editor*, so a remote peer's paragraph and an agent's rewrite are both on it.
 * `Cmd+Z` then deletes someone else's work. This is the bug `06-editor.md`
 * calls out by name.
 *
 * Loro's `UndoManager` is bound to one peer id and cannot revert another peer's
 * changes — it rebases its stack over them instead. So when a CRDT is bound,
 * the editor must not install its own history plugin; `@delightstack/editor`
 * exposes the `history` option as exactly that seam.
 */
import { Plugin, PluginKey, type Command, type EditorState } from 'prosemirror-state';
import { UndoManager } from '../loro.client.js';
/** Undo steps closer together than this merge into one. Loro's own default. */
export declare const DEFAULT_UNDO_MERGE_INTERVAL_MS = 1000;
/** How many undo steps are retained. Loro's own default. */
export declare const DEFAULT_MAX_UNDO_STEPS = 100;
export interface LoroUndoOptions {
    merge_interval_ms?: number;
    max_steps?: number;
}
export interface LoroUndoState {
    manager: UndoManager;
}
export declare const loroUndoKey: PluginKey<LoroUndoState>;
/**
 * The undo plugin. Must be installed **after** {@link loroSync}, whose state it
 * reads to find the document — `loroPlugins()` does that ordering for you.
 */
export declare function loroUndo(options?: LoroUndoOptions): Plugin<LoroUndoState>;
/** ProseMirror command: undo this peer's last edit. */
export declare const undo: Command;
/** ProseMirror command: redo this peer's last undone edit. */
export declare const redo: Command;
export declare function canUndo(state: EditorState): boolean;
export declare function canRedo(state: EditorState): boolean;
/**
 * The bindings `prosemirror-history` would have owned.
 *
 * Pass to `keymap()` from `prosemirror-keymap`; this package does not depend on
 * it, so the object is plain.
 */
export declare const loroUndoKeymap: Record<string, Command>;
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