import { type MessageSelectionTarget } from './ArkmeMessageTextSelection.js';
import { type ArkmeMessageQuote } from '../message-quote.js';
import type { MessageUnderline } from '../message-annotations.js';
import { MessageUnderlineSession, type MessageMarkTransport } from './message-underline-session.js';
export type MarkPosition = {
    key: string;
    target: MessageSelectionTarget;
    ids: string[];
    left: number;
    top: number;
    width: number;
    height: number;
    element?: HTMLElement;
    stale: boolean;
    changed?: boolean;
    pending: boolean;
};
/** Split overlapping highlights into disjoint spans so each span reports every actual marker. */
export declare function mergeUnderlinePositions(positions: MarkPosition[]): MarkPosition[];
export declare function useMessageUnderlines(scope: string, sourceRef: string | undefined, viewerId: number | undefined, transport?: MessageMarkTransport, storage?: 'local' | 'cloud'): {
    storage: "local" | "cloud";
    mark: ((target: MessageSelectionTarget, anchor: ArkmeMessageQuote) => Promise<string | undefined>) | undefined;
    getMarks: ((target: MessageSelectionTarget) => MessageUnderline[]) | undefined;
    remove: ((target: MessageSelectionTarget, mark: MessageUnderline) => Promise<"这条消息的标记正在同步" | "只能取消自己的标记" | undefined>) | undefined;
    layer: import("react").JSX.Element | null;
};
/** Paint outside the text tree: selection, Markdown, copy and message layout stay intact. */
export declare function UnderlineLayer({ session, revision }: {
    session: MessageUnderlineSession;
    revision: number;
}): import("react").ReactPortal | null;
//# sourceMappingURL=ArkmeMessageUnderlines.d.ts.map