/**
 * Tooltip.
 *
 * An HTML overlay rather than SVG text: real text wrapping, real CSS, and no
 * clipping by the SVG viewport. Positioning flips near the container edges so a
 * tooltip on a feature at the right margin does not fall off the map.
 *
 * @module components/Tooltip
 */
import type { ScreenPoint, TooltipOptions } from '../types';
export declare class Tooltip {
    readonly container: HTMLElement;
    /** Re-pointed at the live config on every draw; see `_syncComponentOptions`. */
    options: TooltipOptions;
    el: HTMLElement | null;
    visible: boolean;
    constructor({ container, options }: {
        container: HTMLElement;
        options: TooltipOptions;
    });
    mount(): void;
    show({ point, html: markup }: {
        point: ScreenPoint;
        html: string;
    }): void;
    move([x, y]: ScreenPoint): void;
    hide(): void;
    destroy(): void;
    /**
     * Default tooltip content: name, value, and the join key when it differs from
     * the name (which is exactly when a developer is debugging a join).
     *
     */
    static defaultContent({ feature, value, datum, series, format, }: {
        feature: {
            key?: string;
            name?: string;
        };
        value: number | null;
        datum: unknown;
        series?: {
            config?: {
                name?: string;
            };
            scale?: {
                nullLabel?: string;
            };
        };
        format?: (v: number) => string;
    }): string;
}
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