import { type DateTimeGranularity } from '../../utils';
import { type Ele as CalendarBaseEle, type Weeks } from '../calendar';
import type { Ele as EchoEle } from '../echo';
import type { DateFormatterFn, DatetimeFormatterFn, TimeFormatterFn } from '../echo/utils';
import type { Ele as HhMmSsMsSelectorEle } from '../hhmmss-ms-list-grp/selector';
import type { Ele as PopoverEle } from '../popover';
import { type reExportPopoverAttrs } from '../popover/attr-sync-helper';
import { type BaseAttrs, type BaseEmits, type Emit2EventMap, UiBase } from '../web-component-base';
import { Ele as YyyyMmNavEle } from '../yyyymm-nav';
import type { Ele as YyyyMmDdSelectorEle } from '../yyyymmdd-list-grp/selector';
export declare const granularityList: readonly ["millisecond", "second", "minute", "hour", "day", "month", "year"];
export type Granularity = DateTimeGranularity;
export type Attrs = BaseAttrs & reExportPopoverAttrs & {
    /**
     * Set which day of the week is the first day.
     * @type `'sun' | 'mon' | 'tue' | 'wed' | 'thu' | 'fri' | 'sat'`
     * @default 'sun'
     */
    'week-start-at'?: Weeks;
    /**
     * The time of the calendar.
     * @type {`string | number`} A value that can be passed to the Date constructor.
     * @default Math.min('max-time', Math.max('min-time', Date.now()))
     */
    'current-time'?: string | number;
    /**
     * The showing time, used to determine the month to show on calendar.
     * @type {`string | number`} A value that can be passed to the Date constructor.
     * @default 'current-time'
     */
    'showing-time'?: string | number;
    /**
     * 选择器的粒度，表示最小可选的时间单位。默认为 millisecond。
     * 例如设置为 'minute'，则表示只能选择到分钟，秒和毫秒将被忽略。忽略的时间单位将被重置为 0。
     */
    'min-granularity'?: DateTimeGranularity;
    /**
     * 选择器的粒度，表示最大可选的时间单位。默认为 year。
     * 例如设置为 'day'，则表示只能选择到日，年和月秒将被忽略。忽略的时间单位将被重置为 0、1972（离1970最近的闰年）。
     */
    'max-granularity'?: DateTimeGranularity;
    /**
     * The minimum time of the calendar display range.
     * @type {`string | number`} A value that can be passed to the Date constructor.
     */
    'min-time'?: string | number;
    /**
     * The maximum time of the calendar display range.
     * @type {`string | number`} A value that can be passed to the Date constructor.
     */
    'max-time'?: string | number;
};
export interface Emits extends BaseEmits {
    'select-time': Date;
    'open-change': boolean;
}
export type EventMap = Emit2EventMap<Emits>;
/**
 * 日期时间选择器（单个时间点）
 * 包括日历和时分秒毫秒选择。
 *
 * - 存在一个 timeFormatter 方法，用于格式化时分秒毫秒显示时间。
 * - 存在一个 dateFormatter 方法，用于格式化年月日显示时间。
 */
export declare class Ele extends UiBase<Attrs, Emits> {
    static readonly tagName: "dt-date-time-selector";
    protected static _style: string;
    protected static _template: string;
    static get observedAttributes(): string[];
    private _getTimeAttr;
    private _setTimeAttr;
    private _getMaxMinTime;
    get currentTime(): number | string | Date;
    set currentTime(val: number | string | Date);
    get showingTime(): number | string | Date;
    set showingTime(val: number | string | Date);
    get minTime(): number | string | Date;
    set minTime(val: number | string | Date);
    get maxTime(): number | string | Date;
    set maxTime(val: number | string | Date);
    get weekStartAt(): Weeks;
    set weekStartAt(val: Weeks);
    get minGranularity(): DateTimeGranularity;
    set minGranularity(val: DateTimeGranularity);
    get maxGranularity(): DateTimeGranularity;
    set maxGranularity(val: DateTimeGranularity);
    get _staticEls(): {
        readonly hostWrapper: HTMLElement;
        readonly nav: YyyyMmNavEle;
        readonly calendar: CalendarBaseEle;
        readonly timeSelectorInCalendar: HhMmSsMsSelectorEle;
        readonly timeSelectorOnly: HhMmSsMsSelectorEle;
        readonly dateSelector: YyyyMmDdSelectorEle;
        readonly timeSelectorInDate: HhMmSsMsSelectorEle;
        readonly popover: PopoverEle;
        readonly slots: any[];
        readonly echoInDate: EchoEle;
        readonly echoInPopover: EchoEle;
    };
    private get _minmaxGran();
    private get _granType();
    private _updateSlot;
    private _updateOpenState;
    get open(): boolean;
    set open(v: boolean);
    private _ob;
    connectedCallback(): void;
    disconnectedCallback(): boolean | void;
    protected _onAttrChanged(name: string, oldValue: string | null, newValue: string | null): void;
    private _render;
    private _onCalendarSelect;
    private _onNavChange;
    private _onNavOpenToggle;
    private _onTimeSelectorChange;
    private _onDateSelectorSelect;
    private _onConfirmBtnClick;
    /** 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);
}