import { DragObjectWithTypeWithTarget as BaseDragObjectWithTypeWithTarget } from "./components/Droppable";
import { PbBlockVariable, PbEditorElement, PbEditorElementTree, PbEditorPageElementPlugin, PbElement } from "../types";
export declare const getNanoid: (size?: number | undefined) => string;
interface FlatElements {
    [id: string]: PbEditorElement;
}
export declare const flattenElements: (el?: PbEditorElementTree | PbEditorElement, parent?: string) => FlatElements;
interface CreateElementCallableOptions {
    [key: string]: any;
}
interface CreateElementCallable {
    (type: string, options?: CreateElementCallableOptions, parent?: PbEditorElement): PbEditorElement;
}
export declare const createElement: CreateElementCallable;
export declare const addElementToParent: (element: PbEditorElement, parent: PbEditorElement, position?: number) => PbEditorElement;
export declare const removeElementFromParent: (parent: PbEditorElement, id?: string) => PbEditorElement;
export interface DragObjectWithTypeWithTarget extends BaseDragObjectWithTypeWithTarget {
    elements?: PbEditorElement[];
    data?: Record<string, any>;
}
export declare const createDroppedElement: (source: DragObjectWithTypeWithTarget, target: PbEditorElement) => PbEditorElement;
/**
 * Traverse elements and generate valid element IDs and `variableId` references.
 */
export declare function prefixElementIdsRecursively(elements: PbEditorElement[], id: string): PbEditorElement[];
/**
 * Update all block element variable IDs with the given `blockId` prefix.
 */
export declare function generateBlockVariableIds(variables: PbBlockVariable[], blockId: string): {
    id: string;
    type: string;
    label: string;
    value: any;
}[];
/**
 * Add unique id to elements recursively
 */
export declare const addElementId: (target: Omit<PbEditorElement, "id">) => PbEditorElement;
/**
 * Remove id from elements recursively
 */
export declare const removeElementId: (el: PbElement) => PbElement;
export declare const createBlockElements: (name?: string) => PbEditorElement;
export declare const userElementSettingsPlugins: (elementType: string) => string[];
export declare const userElementStyleSettingsPlugins: (elementType: string) => string[];
type CreateEmptyElementCallableType = (args: Pick<PbEditorElement, "id" | "type">) => PbEditorElement;
export declare const createEmptyElement: CreateEmptyElementCallableType;
export interface UpdateBlockPositionParams {
    parent: PbEditorElement;
    sourcePosition: number;
    targetPosition: number;
}
export declare const updateBlockPosition: (params: UpdateBlockPositionParams) => PbEditorElement;
export declare const moveInPlace: (arr: PbEditorElement[], from: number, to: number) => PbEditorElement[];
export declare const onReceived: PbEditorPageElementPlugin["onReceived"];
export {};