import { ViewerExtensionRef } from '@alfresco/adf-extensions';
import * as i0 from "@angular/core";
export declare class ViewUtilService {
    private readonly extensionService;
    private readonly extensions;
    private readonly mimeTypes;
    /**
     * Returns a list of the active Viewer content extensions.
     *
     * @returns list of extension references
     */
    get viewerExtensions(): ViewerExtensionRef[];
    /**
     * Provides a list of file extensions supported by external plugins.
     *
     * @returns list of extensions
     */
    get externalExtensions(): string[];
    /**
     * get File name from url
     *
     * @param  url - url file
     * @returns file name portion of the url
     */
    getFilenameFromUrl(url: string): string;
    /**
     * Get file extension from the string.
     * Supports the URL formats like:
     * http://localhost/test.jpg?cache=1000
     * http://localhost/test.jpg#cache=1000
     *
     * @param fileName - file name
     * @returns file extension
     */
    getFileExtension(fileName: string): string;
    getViewerType(extension: string, mimeType: string, extensionsSupportedByTemplates?: string[]): string;
    getViewerTypeByMimeType(mimeType: string): string;
    private getViewerTypeByExtension;
    private isExternalViewer;
    isCustomViewerExtension(extension: string, extensionsSupportedByTemplates?: string[]): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<ViewUtilService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ViewUtilService>;
}