/**
 * DOM provider factory for SSR.
 *
 * GXT's SSR entry historically bound itself to happy-dom via a hard dynamic
 * import. That makes it impossible for a host environment — e.g. Ember's
 * FastBoot, which uses SimpleDOM — to reuse GXT's SSR pipeline with a
 * different DOM implementation.
 *
 * This module introduces a small factory interface so the host can inject
 * their own DOM. When no provider is supplied, `defaultHappyDomProvider`
 * is used and behavior is identical to before.
 */
export interface SsrDomInstance {
    /** The DOM window object (or window-like). */
    window: any;
    /** The document created by the provider. */
    document: any;
    /**
     * An `XMLSerializer` constructor compatible with the provider's nodes.
     * `ssr.ts` uses this to serialize rendered children to HTML.
     */
    XMLSerializer: {
        new (): {
            serializeToString(node: any): string;
        };
    };
    /**
     * Release any resources held by the provider (e.g. happy-dom's
     * `cancelAsync` + `close`). Called unconditionally after render.
     */
    dispose(): void;
}
export interface SsrDomProvider {
    createDocument(options: {
        url: string;
    }): SsrDomInstance;
}
/**
 * Default provider — lazily imports happy-dom and preserves the exact
 * shutdown semantics of the previous inline implementation
 * (`win.happyDOM.cancelAsync(); win.close();`).
 */
export declare function defaultHappyDomProvider(): Promise<SsrDomProvider>;