import { Computed } from '@telegram-apps/signals';
import { SafeAreaInsets } from '@telegram-apps/bridge';
import { State } from './types.js';
/**
 * Signal containing the component complete state.
 */
export declare const _state: import('@telegram-apps/signals').Signal<State>, state: Computed<State>;
export declare function signalFromState<K extends keyof State>(key: K): Computed<State[K]>;
/**
 * Signal containing the current height of the **visible area** of the Mini App.
 *
 * The application can display just the top part of the Mini App, with its
 * lower part remaining outside the screen area. From this position, the user
 * can "pull" the Mini App to its maximum height, while the bot can do the same
 * by calling `expand` method. As the position of the Mini App changes, the
 * current height value of the visible area will be updated  in real time.
 *
 * Please note that the refresh rate of this value is not sufficient to
 * smoothly follow the lower border of the window. It should not be used to pin
 * interface elements to the bottom of the visible area. It's more appropriate
 * to use the value of the `stableHeight` field for this purpose.
 *
 * @see stableHeight
 */
export declare const height: Computed<number>;
/**
 * Signal containing the height of the visible area of the Mini App in its last stable state.
 *
 * The application can display just the top part of the Mini App, with its
 * lower part remaining outside the screen area. From this position, the user
 * can "pull" the Mini App to its maximum height, while the application can do
 * the same by calling `expand` method.
 *
 * Unlike the value of `height`, the value of `stableHeight` does not change as
 * the position of the Mini App changes with user gestures or during
 * animations. The value of `stableHeight` will be updated after all gestures
 * and animations are completed and the Mini App reaches its final size.
 *
 * @see height
 */
export declare const stableHeight: Computed<number>;
/**
 * Signal containing the currently visible area width.
 */
export declare const width: Computed<number>;
/**
 * Signal indicating if the Mini App is expanded to the maximum available height. Otherwise,
 * if the Mini App occupies part of the screen and can be expanded to the full
 * height using `expand` method.
 * @see expand
 */
export declare const isExpanded: Computed<boolean>;
/**
 * Signal indicating if the current viewport height is stable and is not going to change in
 * the next moment.
 */
export declare const isStable: Computed<boolean>;
/**
 * Updates the viewport signal state saving it in the storage.
 * @param s - state updates.
 */
export declare function setState(s: Partial<State>): void;
/**
 * Retrieves the viewport state from the storage.
 */
export declare function getStateFromStorage(): State | undefined;
export declare const contentSafeAreaInsets: Computed<SafeAreaInsets>;
export declare const contentSafeAreaInsetBottom: Computed<number>;
export declare const contentSafeAreaInsetLeft: Computed<number>;
export declare const contentSafeAreaInsetRight: Computed<number>;
export declare const contentSafeAreaInsetTop: Computed<number>;
export declare const safeAreaInsets: Computed<SafeAreaInsets>;
export declare const safeAreaInsetBottom: Computed<number>;
export declare const safeAreaInsetLeft: Computed<number>;
export declare const safeAreaInsetRight: Computed<number>;
export declare const safeAreaInsetTop: Computed<number>;