import { ElementRef } from '@angular/core';
import { DomSanitizer, SafeHtml, SafeResourceUrl } from '@angular/platform-browser';
import * as i0 from "@angular/core";
export declare class IframeFieldsComponent {
    private sanitizer;
    question: any;
    height: string;
    width: string;
    contentType: string;
    htmlContent: string;
    cssContent: string;
    scriptContent: string;
    urlContent: string;
    count: number;
    safeHtmlContent: SafeHtml;
    safeUrl: SafeResourceUrl;
    embeddableDomains: string[];
    constructor(sanitizer: DomSanitizer);
    ngOnInit(): void;
    ngAfterViewInit(): void;
    valueAssigned(): void;
    iframeRef: ElementRef<HTMLIFrameElement>;
    /** Render HTML with dynamic CSS */
    renderHtml(): void;
    renderLink(): void;
    isValidUrl(url: string): boolean;
    /** Sanitize URLs for iframes */
    sanitizeUrl(url: string): SafeResourceUrl;
    isEmbeddableUrl(url: string): boolean;
    convertToEmbedUrl(url: string): string;
    /** Basic script validation to prevent unsafe operations */
    isSafeScript(code: string): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<IframeFieldsComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<IframeFieldsComponent, "lib-iframe-fields", never, { "question": { "alias": "question"; "required": false; }; }, {}, never, never, false, never>;
}