@fastkit/visibility/dist/visibility.d.ts

A library to watch the visible state of the browser window.

type VisibilityTypedCallback = (event: Event) => any;
type VisibilityStateListener = (state: VisibilityState, event: Event) => any;
declare const states: readonly ["visible", "hidden"];
type VisibilityState = (typeof states)[number];
declare class VisibilityManager {
    private _state;
    private _stateListeners;
    private _typedCallbacks;
    get state(): VisibilityState;
    get isVisible(): boolean;
    get isHidden(): boolean;
    constructor();
    private _setState;
    private _triggerStateListeners;
    private _triggerTypedCallback;
    change(listener: VisibilityStateListener): () => void;
    visible(callback: VisibilityTypedCallback): () => void;
    hidden(callback: VisibilityTypedCallback): () => void;
    remove(listenerOrCallback: VisibilityStateListener | VisibilityTypedCallback, targetState?: VisibilityState | 'change'): void;
}

declare const visibilityManager: VisibilityManager;

export { VisibilityManager, type VisibilityState, type VisibilityStateListener, type VisibilityTypedCallback, visibilityManager };