import { Platform } from '@angular/cdk/platform';
import { HttpBackend } from '@angular/common/http';
import { InjectionToken, OnDestroy, RendererFactory2 } from '@angular/core';
import { DomSanitizer } from '@angular/platform-browser';
import { Subject } from 'rxjs';
import { IconDefinition, IconService } from '@ant-design/icons-angular';
import { WtSafeAny } from 'ngx-wonton/core/types';
import * as i0 from "@angular/core";
export interface WtIconfontOption {
    scriptUrl: string;
}
export declare const WT_ICONS: InjectionToken<unknown>;
export declare const WT_ICON_DEFAULT_TWOTONE_COLOR: InjectionToken<unknown>;
export declare const DEFAULT_TWOTONE_COLOR = "#1890ff";
/**
 * It should be a global singleton, otherwise registered icons could not be found.
 */
export declare class WtIconService extends IconService implements OnDestroy {
    private platform;
    configUpdated$: Subject<void>;
    protected get _disableDynamicLoading(): boolean;
    private iconfontCache;
    private subscription;
    ngOnDestroy(): void;
    normalizeSvgElement(svg: SVGElement): void;
    fetchFromIconfont(opt: WtIconfontOption): void;
    createIconfontIcon(type: string): SVGElement;
    constructor(rendererFactory: RendererFactory2, sanitizer: DomSanitizer, platform: Platform, handler: HttpBackend, _document: WtSafeAny, icons?: IconDefinition[]);
    private onConfigChange;
    private configDefaultTheme;
    private configDefaultTwotoneColor;
    static ɵfac: i0.ɵɵFactoryDeclaration<WtIconService, [null, null, null, { optional: true; }, { optional: true; }, { optional: true; }]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<WtIconService>;
}
export declare const WT_ICONS_PATCH: InjectionToken<unknown>;
export declare class WtIconPatchService {
    private extraIcons;
    private rootIconService;
    patched: boolean;
    constructor(extraIcons: IconDefinition[], rootIconService: WtIconService);
    doPatch(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<WtIconPatchService, [{ self: true; }, null]>;
    static ɵprov: i0.ɵɵInjectableDeclaration<WtIconPatchService>;
}