import { Registry } from "../registries/registry";
import { CellValue } from "../types/cells";
import { CoreGetters } from "../types/core_getters";
import { Link } from "../types/misc";
import { SpreadsheetChildEnv } from "../types/spreadsheet_env";
/**
 * Add the `https` prefix to the url if it's missing
 */
export declare function withHttps(url: string): string;
export interface LinkSpec {
    readonly match: (url: string) => boolean;
    readonly createLink: (url: string, label: string) => Link;
    /**
     * String used to display the URL in components.
     * Particularly useful for special links (sheet, etc.)
     * - a simple web link displays the raw url
     * - a link to a sheet displays the sheet name
     */
    readonly urlRepresentation: (url: string, getters: CoreGetters) => string;
    readonly open: (url: string, env: SpreadsheetChildEnv, isMiddleClick?: boolean) => void;
    readonly sequence: number;
    readonly title: string;
    readonly icon?: string;
    readonly getLinkProposals?: (env: SpreadsheetChildEnv) => (Link & {
        icon: string;
    })[];
}
export declare const urlRegistry: Registry<LinkSpec>;
export declare function urlRepresentation(link: Link, getters: CoreGetters): string;
export declare function openLink(link: Link, env: SpreadsheetChildEnv, isMiddleClick?: boolean): void;
export declare function detectLink(value: CellValue | null): Link | undefined;