/**
 * Unsaved-changes guard for editors that get torn down or navigated away from. One
 * registry closes the gap: editors report dirtiness via {@link useRegisterDirty}; the
 * enclosing {@link DirtyGuardBoundary} arms {@link useNavigationGuard} from that
 * registry, so a route navigation confirms through a shared dialog and a full-page
 * unload raises the native prompt. {@link GuardedTabs} adds a tab-switch confirm on
 * top of the same boundary — `Tabs` unmount inactive panels, so a switch away from a
 * dirty editor is held behind the confirm too. The dialog is one shared
 * {@link ConfirmDialog} driven by a pending-promise resolver, so the guard's
 * `Promise<boolean>` handler and the tab switch both settle against it.
 */
import { type ReactNode } from 'react';
import type { TabItem } from './tabs';
/**
 * Boundary that guards navigation away from a region holding a dirty editor. Editors
 * inside it arm the guard through {@link useRegisterDirty}; while any is dirty a route
 * navigation (a route-token/plugin navigate, an {@link AppLink}, or a browser
 * back/forward) confirms through the shared discard dialog, and a full-page unload
 * raises the native prompt. Use this directly to guard a dirty editor that is a plain
 * page section (no tabs); {@link GuardedTabs} wraps this same boundary to additionally
 * guard tab switches.
 */
export declare function DirtyGuardBoundary({ children }: {
    readonly children: ReactNode;
}): ReactNode;
/**
 * Report an editor's dirty state to the enclosing {@link DirtyGuardBoundary} (which
 * {@link GuardedTabs} also provides). A no-op outside a boundary (an editor rendered
 * standalone, e.g. in isolation tests) so the hook is always safe to call.
 */
export declare function useRegisterDirty(dirty: boolean): void;
/**
 * A drop-in replacement for {@link Tabs} that guards a switch away from a dirty
 * editor. Wraps the tabs in a {@link DirtyGuardBoundary}, so an editor rendered in
 * any panel can arm the guard through {@link useRegisterDirty}.
 */
export declare function GuardedTabs({ items, defaultValue, }: {
    readonly items: readonly TabItem[];
    readonly defaultValue?: string;
}): ReactNode;
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