/**
 * Copyright Aquera Inc 2026
 *
 * This source code is licensed under the BSD-3-Clause license found in the
 * LICENSE file in the root directory of this source tree.
 */
import NileElement from '../internal/nile-element';
import type { CSSResultGroup, PropertyValues } from 'lit';
import type { NileFormControl } from '../internal/nile-element';
import { WallClock } from './nile-timestamp-builder-utils';
/**
 * @event nile-init - Emitted when the component is added to the DOM.
 * @event nile-destroy - Emitted when the component is removed from the DOM.
 * @event nile-change - Emitted when the value is committed.
 * @event nile-input - Emitted as fields change, before the value is committed.
 * @event nile-expand - Emitted when the editor opens.
 * @event nile-collapse - Emitted when the editor closes.
 * @event nile-copy - Emitted after the value is written to the clipboard.
 * @event nile-copy-error - Emitted when the clipboard write is refused.
 */
export declare class NileTimestampBuilder extends NileElement implements NileFormControl {
    static get styles(): CSSResultGroup;
    private formControlController;
    private internalValueUpdate;
    private internalTimezoneUpdate;
    valueInput: HTMLInputElement;
    private _value;
    get value(): Date | null;
    set value(input: Date | number | string | null);
    defaultValue: Date | null;
    timezone: string;
    name: string;
    disabled: boolean;
    required: boolean;
    readonly: boolean;
    copyable: boolean;
    form: string;
    open: boolean;
    label: string;
    minYear: number;
    maxYear: number;
    wallClock: WallClock;
    timezoneList: string[];
    hasValue: boolean;
    justCopied: boolean;
    get validity(): ValidityState;
    get validationMessage(): string;
    connectedCallback(): void;
    disconnectedCallback(): void;
    protected willUpdate(changedProperties: PropertyValues): void;
    protected updated(changedProperties: PropertyValues): void;
    private isTimezoneReassigned;
    private syncValueToTimezone;
    private valueString;
    private syncHiddenInput;
    private changeDetail;
    private liveDetail;
    private commit;
    private onFieldChange;
    private onTimezoneChange;
    private handleSetNow;
    /** Copies the canonical zoned value */
    private handleCopy;
    private handleStageNow;
    private handleUseLocalTz;
    private handleUseUtc;
    /** Touch input has no reliable `dblclick`, so double-taps are timed by hand. */
    private static readonly DOUBLE_TAP_MS;
    private static readonly COPIED_FEEDBACK_MS;
    private lastTapAt;
    private copiedTimer;
    private handleDisplayDoubleClick;
    private handleDisplayPointerUp;
    /** Keyboard equivalent of the double-click/double-tap edit affordance. */
    private handleDisplayKeyDown;
    private handleEdit;
    private handleDone;
    checkValidity(): boolean;
    reportValidity(): boolean;
    setCustomValidity(message: string): void;
    getForm(): HTMLFormElement | null;
    private renderField;
    private renderCollapsed;
    private renderEditActions;
    private renderCopyAction;
    private renderExpanded;
    render(): import("lit-html").TemplateResult<1>;
}
export default NileTimestampBuilder;
declare global {
    interface HTMLElementTagNameMap {
        'nile-timestamp-builder': NileTimestampBuilder;
    }
}