import { type DateTimeGranularity } from '../../utils';
import { type BaseAttrs, type BaseEmits, type Emit2EventMap, UiBase } from '../web-component-base';
import { type DateFormatterFn, type DatetimeFormatterFn, type TimeFormatterFn } from './utils';
export declare const iconTypeList: readonly ["date", "time", "datetime"];
export type IconType = (typeof iconTypeList)[number];
export interface Attrs extends BaseAttrs {
    active?: boolean;
    'current-time'?: number | string | Date;
    'min-granularity'?: DateTimeGranularity;
    'max-granularity'?: DateTimeGranularity;
}
export interface Emits extends BaseEmits {
}
export type EventMap = Emit2EventMap<Emits>;
export declare class Ele extends UiBase<Attrs, Emits> {
    static readonly tagName: "dt-echo";
    protected static _style: string;
    protected static _template: string;
    static get observedAttributes(): string[];
    get active(): boolean;
    set active(v: boolean);
    get currentTime(): Date;
    set currentTime(val: number | string | Date);
    get minGranularity(): DateTimeGranularity;
    set minGranularity(v: DateTimeGranularity);
    get maxGranularity(): DateTimeGranularity;
    set maxGranularity(v: DateTimeGranularity);
    protected get _minmaxGran(): {
        min: "month" | "year" | "day" | "hour" | "minute" | "second" | "millisecond";
        max: "month" | "year" | "day" | "hour" | "minute" | "second" | "millisecond";
    };
    get iconType(): IconType;
    get _staticEls(): {
        readonly icon: HTMLElement;
        readonly text: HTMLSpanElement;
    };
    connectedCallback(): boolean | void;
    protected _onAttrChanged(name: string, oldValue: string | null, newValue: string | null): void;
    private _render;
    private _currentFormatter;
    /** 时分秒毫秒回显格式化函数。设置为 `null` 则重置为默认值 */
    get timeFormatter(): TimeFormatterFn;
    set timeFormatter(fn: TimeFormatterFn | null);
    /** 年月日回显格式化函数。设置为 `null` 则重置为默认值 */
    get dateFormatter(): DateFormatterFn;
    set dateFormatter(fn: DateFormatterFn | null);
    /** 日期时间回显格式化函数。设置为 `null` 则重置为默认值 */
    get dateTimeFormatter(): DatetimeFormatterFn;
    set dateTimeFormatter(fn: DatetimeFormatterFn | null);
}