import { Dispatch, ReactNode, SetStateAction } from "react";
/**
 * UI-only state shared across the versioning sidebar (the header toggle,
 * {@link CurrentSnapshot}, and each {@link Snapshot}).
 *
 * This is intentionally kept out of the core `VersioningExtension` store: it
 * describes how the *sidebar* interprets clicks, not the editor's preview
 * state. The baseline that drives the rendered diff (and the "Comparing to"
 * indicator) lives in the core store as `compareToSnapshotId`.
 */
export type VersioningSidebarContextValue = {
    /**
     * Whether the sidebar exposes version comparison at all. Mirrors the
     * extension's {@link VersioningExtension.canCompare} capability: when
     * `false`, the comparison toggle and the "Compare with…" actions are hidden
     * entirely, and clicking a version only ever views it. Backends that can't
     * diff documents (e.g. the Yjs v13 adapter) report this off.
     */
    comparisonEnabled: boolean;
    /**
     * Whether clicking a version shows a diff against another version. When
     * `true` (the default), clicking a version diffs it against its chronological
     * predecessor, and the baseline can be moved via "Compare with this version".
     * When `false`, clicking a version only views it. Always `false` when
     * {@link comparisonEnabled} is `false`.
     */
    comparisonMode: boolean;
    setComparisonMode: Dispatch<SetStateAction<boolean>>;
    /**
     * Which tab of the sidebar is currently active: `"named"` shows only
     * user-created named versions, `"history"` shows the full edit timeline.
     *
     * When a `filter` prop is passed to the sidebar this is *forced* to the
     * corresponding tab (`"named"` → named-only, `"all"` → full history) and can
     * no longer be changed via {@link setActiveTab} — see {@link showTabs}.
     */
    activeTab: "named" | "history";
    setActiveTab: Dispatch<SetStateAction<"named" | "history">>;
    /**
     * Whether the tab switcher should be rendered. `false` when the sidebar was
     * given a `filter` prop, which pins {@link activeTab} to a single view and
     * hides the switcher entirely.
     */
    showTabs: boolean;
};
export declare const VersioningSidebarProvider: (props: {
    /**
     * When set, pins the sidebar to a single view and hides the tab switcher:
     * `"named"` shows only user-created named versions, `"all"` shows the full
     * edit history. When omitted, both tabs are shown (default active `"named"`).
     */
    filter?: "named" | "all";
    children: ReactNode;
}) => import("react/jsx-runtime").JSX.Element;
export declare const useVersioningSidebar: () => VersioningSidebarContextValue;