import { ExamComponentSkin } from "../core/skins";
import { GraderSpecificationFor } from "../graders/QuestionGrader";
import { ResponseHandler, SubmissionType } from "./responses";
export type DroppableSpecification = readonly {
    id: string;
    content: string;
}[];
export type FITBDropSpecification = {
    kind: "fitb_drop";
    content: string;
    droppables: DroppableSpecification;
    starter?: FITBDropSubmission;
    sample_solution?: SubmissionType<"fitb_drop">;
    default_grader?: GraderSpecificationFor<"fitb_drop">;
    group_id?: string;
};
export type DropSubmissionItem = {
    id: string;
    children?: (string | DropSubmission)[];
};
export type DropSubmission = DropSubmissionItem[];
export type FITBDropSubmission = (string | DropSubmission)[];
export declare function activateDropLocations(elem: JQuery<HTMLElement>): void;
export declare function activateFITBDropBank(elem: JQuery<HTMLElement>, group_id: string): void;
export declare function getFirstLevelFITBDropElements(responseElem: JQuery<HTMLElement>): HTMLElement[];
export declare const FITB_DROP_HANDLER: ResponseHandler<"fitb_drop">;
/**
 * Precondition: submission (if provided) is a valid submission encoding for the given
 * FITB-Drop response. That is, the number of strings in the submission matches the
 * number of blanks and boxes in the content.
 */
export declare function createFilledFITBDrop(content: string, dropOriginals: DroppableSpecification, group_id: string, skin?: ExamComponentSkin, submission?: FITBDropSubmission, blankRenderer?: typeof DEFAULT_BLANK_RENDERER, boxRenderer?: typeof DEFAULT_BOX_RENDERER, dropLocationRenderer?: typeof DEFAULT_DROP_LOCATION_RENDERER, dropBankRenderer?: typeof DEFAULT_DROP_BANK_RENDERER, encoder?: (s: string) => string): string;
declare function DEFAULT_BLANK_RENDERER(submission_placeholder: string, length: number): string;
declare function DEFAULT_BOX_RENDERER(submission_placeholder: string, lines: number, width: number): string;
declare function DEFAULT_DROP_LOCATION_RENDERER(submission_placeholder: string, group_id: string, lines: number, width: number): string;
declare function DEFAULT_DROP_BANK_RENDERER(group_id: string): string;
export declare function renderFITBDropBank(droppables: DroppableSpecification, group_id: string, skin?: ExamComponentSkin): string;
export declare function mapSkinOverSubmission(submission: FITBDropSubmission, skin: ExamComponentSkin): FITBDropSubmission;
export {};