@mornya/react-image-libs/esm/ImageObserver.d.ts

The project of React.js Image library.

export declare namespace ImageObserver {
    type Keys = 'boundingClientRect' | 'rootBounds' | 'intersectionRect' | 'intersectionRatio' | 'time';
    export type Detail = Pick<IntersectionObserverEntry, Keys> & CustomEventInit & {
        unsubscribe(): void;
    };
    export type Callback = (event: CustomEvent<Detail>) => any;
    export type Unsubscriber = () => void;
    export class Provider {
        private readonly intersectionObserver;
        constructor(option?: IntersectionObserverInit);
        subscribe<T extends Element>(target: T, subscribeCallback: Callback): Unsubscriber;
        subscribeOnce<T extends Element>(target: T, subscribeCallback: Callback): void;
        unsubscribe<T extends Element>(target: T): void;
        destroy(): void;
    }
    export {};
}