/// <reference types="react" />
import type { BaseImageProps } from '../BaseImage';
import type { Dimensions } from '../../types/types';
export type GalleryItem = Omit<BaseImageProps, 'src'> & {
    dimensions?: Dimensions;
    imageUrl?: string;
    videoThumbnailUrl?: string;
    videoUrl?: string;
};
/**
 * Maps an attachment (or link preview) to gallery item fields.
 * Delegates to {@link toBaseImageDescriptors}.
 */
export declare const toGalleryItemDescriptors: (attachment: import("stream-chat").Attachment | import("stream-chat").LocalImageAttachment | import("stream-chat").LocalVideoAttachment | import("stream-chat").LinkPreview, options?: {
    giphyVersionName?: string | undefined;
} | undefined) => Pick<GalleryItem, 'alt' | 'dimensions' | 'imageUrl' | 'title' | 'videoThumbnailUrl' | 'videoUrl'> | undefined;
export type GalleryContextValue = {
    /** Whether clicking the empty gallery background should request close */
    closeOnBackgroundClick: boolean;
    /** Currently displayed item index */
    currentIndex: number;
    /** Currently displayed item */
    currentItem: GalleryItem;
    /** Navigate to a specific index */
    goToIndex: (index: number) => void;
    /** Navigate to the next item */
    goToNext: () => void;
    /** Navigate to the previous item */
    goToPrevious: () => void;
    /** Whether there is a next item */
    hasNext: boolean;
    /** Whether there is a previous item */
    hasPrevious: boolean;
    /** Total number of items */
    itemCount: number;
    /** All items in the gallery */
    items: GalleryItem[];
    /** Request closing the gallery viewer */
    onRequestClose?: () => void;
};
export declare const GalleryContext: import("react").Context<GalleryContextValue | undefined>;
export declare const useGalleryContext: () => GalleryContextValue;
//# sourceMappingURL=GalleryContext.d.ts.map