/**
 * Headless timepicker field controller.
 *
 * The picker edits a draft: turning the dial, typing a segment and switching period all change a
 * working copy, and nothing reaches the field until `"confirm"`. Cancelling discards it, so a
 * dismissed picker leaves the value exactly as it found it.
 *
 * The working copy is canonical 12h whatever the field's own `format` says, which keeps one
 * representation for the dial to move through; `formatTimeAs` converts on the way out. The angle and
 * parsing maths lives in `@modyra/core/datetime` — a renderer drawing its own clock face needs the
 * same functions.
 */
import type { MdyReactivity } from "@modyra/core";
import type { MdyWidgetController } from "../contract.js";
import type { MdyTimepickerFieldControllerOptions, MdyTimepickerFieldIntent, MdyTimepickerFieldState } from "./timepicker-field-types.js";
export interface MdyTimepickerFieldController extends MdyWidgetController<MdyTimepickerFieldState, MdyTimepickerFieldIntent> {
    /** Set the committed value (in `format`) programmatically without producing a command. */
    setValue(value: string | null): void;
    /** Update the readonly state. */
    setReadonly(readonly: boolean): void;
}
export declare function createTimepickerFieldController(options: MdyTimepickerFieldControllerOptions, reactivity?: MdyReactivity): MdyTimepickerFieldController;