import React from "react";
import type { BlocksFieldClient, SanitizedFieldPermissions } from "payload";
export interface BeforeOpenDrawerInfo {
    field: Omit<BlocksFieldClient, "type"> & Partial<Pick<BlocksFieldClient, "type">>;
    path: string;
    schemaPath: string;
    readOnly: boolean;
    permissions?: SanitizedFieldPermissions;
    /** Current blocks data for this field */
    blocksData: unknown[];
    /** Full form data */
    formData: Record<string, unknown>;
}
/**
 * Callback that runs before the "Add block with preset" drawer opens.
 * Receives field info for validation.
 * Return `true` (or resolve to `true`) to allow the drawer to open.
 * Return `false` to prevent it.
 */
export type BeforeOpenDrawerFn = (info: BeforeOpenDrawerInfo) => boolean | Promise<boolean>;
export declare const BeforeOpenDrawerProvider: React.FC<{
    beforeOpenDrawer: BeforeOpenDrawerFn;
    children: React.ReactNode;
}>;
export declare function useBeforeOpenDrawer(): BeforeOpenDrawerFn | undefined;