import { HttpClient } from '@angular/common/http';
import { OnDestroy } from '@angular/core';
import { DomSanitizer, SafeHtml } from '@angular/platform-browser';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export interface Icon {
    svgString?: string;
    url: SafeHtml;
    name: string;
}
/**
 * Registering icons service for icon.component
 *
 * Registering own:
 * @example
 *
 * constructor(private iconResource: IconResourceService) {
 *  iconResource.registerIcon(
 *    this.sanitizer.bypassSecurityTrustHtml('/assets/icons/your-icon.svg'),
 *    'icon-name'
 *  );
 * }
 *
 * @
 * Use in html with icon component:
 *
 * @example
 *
 * <obl-icon [width]="20" name="icon-name"></obl-icon>
 *
 * @ To correctly work in library component you need to copy assets folder adding script to npm:
 *
 * @example
 *
 * "copy-assets": "node ./node_modules/@obliczeniowo/elementary/assets/scripts/copy.js ./src/assets/",
 *
 * @ and run in console:
 *
 * @example
 * npm run copy-assets
 */
export declare class IconResourceService implements OnDestroy {
    private readonly http;
    private readonly sanitizer;
    private readonly document;
    protected icons: Map<string, Icon>;
    protected urls: Map<string, Partial<Partial<Icon>>>;
    protected loading: Map<string, Promise<string | undefined>>;
    protected base: string;
    constructor(http: HttpClient, sanitizer: DomSanitizer, document: Document);
    /**
     * Registering own:
     * @param url SafeHTML object with path to icon in your asset folder
     * @param name your icon name
     *
     * @example
     *
     * constructor(private iconResource: IconResourceService) {
     *  iconResource.registerIcon(
     *    this.sanitizer.bypassSecurityTrustHtml('/assets/icons/your-icon.svg'),
     *    'icon-name'
     *  );
     * }
     *
     * @
     * Use in html with icon component:
     *
     * @example
     *
     * <obl-icon [width]="20" name="icon-name"></obl-icon>
     */
    registerIcon(url: SafeHtml, name: string): void;
    /**
     * Download once icon from server and keep it in buffer
     * @param name name of icon
     * @returns observable with SVGSVGElement or undefined
     */
    getIcon(name: string): Observable<SVGSVGElement | undefined>;
    /**
     * Register url to SVG file
     * @param url url string
     * @returns SVGSVGElement/undefined or throwing error
     */
    fromUrl(url: string): Observable<SVGSVGElement | undefined>;
    protected _fromUrl(url: string, cb?: (svg: string) => void, cbError?: () => Error): Observable<SVGSVGElement | undefined>;
    ngOnDestroy(): void;
    protected err(name?: string, url?: string): Error;
    protected createSvgFromString(svgString: string): SVGSVGElement | undefined;
    static ɵfac: i0.ɵɵFactoryDeclaration<IconResourceService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<IconResourceService>;
}