import { LitElement } from "lit";
import { DocumentType } from "./document.types.js";
declare const NrDocumentElement_base: (new (...args: any[]) => import("@nuralyui/common/mixins").DependencyAware) & (new (...args: any[]) => import("@nuralyui/common/mixins").ThemeAware) & (new (...args: any[]) => import("@nuralyui/common/mixins").EventHandlerCapable) & (new (...args: any[]) => import("packages/common/src/shared/base-mixin.js").LightDomContent) & typeof LitElement;
/**
 * Document viewer component for embedding PDFs and other documents via iframe.
 *
 * @csspart container - The root wrapper div of the document viewer
 * @csspart iframe - The native iframe element rendering the document
 * @csspart preview-button - The button that opens the fullscreen preview modal
 * @csspart preview-modal - The fullscreen preview overlay
 * @csspart preview-close - The close button inside the preview modal
 * @csspart error-message - The error state container shown when the document fails to load
 */
export declare class NrDocumentElement extends NrDocumentElement_base {
    static styles: import("lit").CSSResult;
    static useShadowDom: boolean;
    src: string;
    type: DocumentType;
    width: string;
    height: string;
    previewable: boolean;
    block: boolean;
    private showPreview;
    private hasError;
    private readonly defaultFallback;
    private handleError;
    private handleLoad;
    private showPreviewModal;
    private closePreviewModal;
    render(): import("lit-html").TemplateResult<1>;
}
declare global {
    interface HTMLElementTagNameMap {
        'nr-document': NrDocumentElement;
    }
}
export {};
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