import { Ctx } from '@milkdown/kit/ctx';
import { EditorView } from '@milkdown/kit/prose/view';
import { MediaUploadHandler } from '../../types';
export { ACCEPTED_FILE_TYPES, isAcceptedAttachmentFile } from './acceptedFiles';
export interface AttachmentConfig {
    onUploadFile?: MediaUploadHandler;
}
export declare const attachmentConfig: import('@milkdown/utils').$Ctx<AttachmentConfig, "attachmentConfig">;
/** Paste/drop: insert at cursor. Slash menu: replace the current block (e.g. empty `/file` paragraph). */
export type AttachmentInsertMode = 'atCursor' | 'replaceBlock';
/** Upload a file and insert an attachment node (no placeholder). */
export declare function uploadAndInsertAttachment(view: EditorView, file: File, upload: MediaUploadHandler, options?: {
    mode?: AttachmentInsertMode;
    range?: {
        from: number;
        to: number;
    };
}): Promise<number | undefined>;
/** Upload attachment files sequentially (paste/drop). */
export declare function uploadAndInsertAttachments(view: EditorView, files: File[], upload: MediaUploadHandler, options?: {
    abortSignal?: AbortSignal;
}): Promise<void>;
/** Open native file picker and upload the selected attachment (slash menu). */
export declare function pickAndUploadAttachment(view: EditorView, upload?: MediaUploadHandler): void;
export declare function pickAndUploadAttachmentFromCtx(ctx: Ctx): void;