import { HttpClient } from '@angular/common/http';
import { Icon } from './meta';
import * as i0 from "@angular/core";
interface RegisteredIcon {
    name: string;
    xml?: string;
    url?: string;
    requested: boolean;
}
/**
 * Icons registry.
 *
 * ```typescript
 * import { IconsRegistry } from 'icong';
 * ...
 * constructor(
 *   private iconsRegistry: IconsRegistry,
 * ) {}
 * ...
 * this.iconsRegistry.add({name: 'home', xml: '<svg ...'});
 * this.iconsRegistry.add({name: 'star', url: '/assets/icons/star.svg'});
 * // or
 * this.iconsRegistry.add([
 *   {name: 'home', xml: '<svg ...'},
 *   {name: 'star', url: '/assets/icons/star.svg'},
 * ]);
 * ```
 *
 * Use in a template:
 *
 * ```html
 * <svg icon="home"></svg>
 * ```
 */
export declare class IconsRegistry {
    #private;
    private http;
    private platformId?;
    constructor(http: HttpClient, platformId?: any);
    get isBrowser(): boolean;
    get icons(): RegisteredIcon[];
    get reqIcons$(): import("rxjs").Observable<RegisteredIcon[]>;
    /**
     * Add icons to registry.
     */
    add(icon: Icon | Icon[]): void;
    /**
     * @internal
     *
     * Request icon to load (if needed) and draw into the host.
     */
    req(name: string): void;
    private updateReqIcons;
    private loadIcon;
    static ɵfac: i0.ɵɵFactoryDeclaration<IconsRegistry, [null, { optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<IconsRegistry>;
}
export {};