/**
 * @license
 * Copyright 2023 Google Laabidi Aymen
 * SPDX-License-Identifier: MIT
 */
/**
 * Date picker component constants
 */
export declare const EMPTY_STRING = "";
export declare const DEFAULT_LOCALE = "en";
export declare const DEFAULT_DATE_FORMAT = "DD/MM/YYYY";
export declare const CALENDAR_HEADER_HEIGHT = 60;
export declare const CALENDAR_DAY_HEIGHT = 40;
export declare const CALENDAR_ROWS = 6;
export declare const CALENDAR_COLS = 7;
export declare const YEARS_GRID_SIZE = 12;
export declare const MONTHS_PER_ROW = 3;
export declare const DECADE_SPAN = 10;
export declare const MIN_YEAR = 1900;
export declare const MAX_YEAR = 2100;
export declare const ANIMATION_DURATION = 200;
export declare const CALENDAR_Z_INDEX = 1000;
export declare const INPUT_FIELD_ID = "date-input";
export declare const CALENDAR_CONTAINER_CLASS = "calendar-container";
export declare const DATE_SEPARATOR = "-";
export declare const RANGE_SEPARATOR = " - ";
export declare const KEYBOARD_KEYS: {
    readonly ENTER: "Enter";
    readonly ESCAPE: "Escape";
    readonly ARROW_UP: "ArrowUp";
    readonly ARROW_DOWN: "ArrowDown";
    readonly ARROW_LEFT: "ArrowLeft";
    readonly ARROW_RIGHT: "ArrowRight";
    readonly TAB: "Tab";
    readonly HOME: "Home";
    readonly END: "End";
    readonly PAGE_UP: "PageUp";
    readonly PAGE_DOWN: "PageDown";
};
export declare const ARIA_LABELS: {
    readonly CALENDAR: "Calendar";
    readonly PREVIOUS_MONTH: "Previous month";
    readonly NEXT_MONTH: "Next month";
    readonly PREVIOUS_YEAR: "Previous year";
    readonly NEXT_YEAR: "Next year";
    readonly CHOOSE_DATE: "Choose date";
    readonly SELECTED_DATE: "Selected date";
    readonly TODAY: "Today";
    readonly WEEK: "Week";
};
export declare const DATE_PICKER_EVENTS: {
    readonly DATE_CHANGE: "nr-date-change";
    readonly RANGE_CHANGE: "nr-range-change";
    readonly CALENDAR_OPEN: "nr-calendar-open";
    readonly CALENDAR_CLOSE: "nr-calendar-close";
    readonly FOCUS: "nr-focus";
    readonly BLUR: "nr-blur";
    readonly VALIDATION: "nr-validation";
};
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