import { signal, Type } from '@angular/core';
import * as i0 from "@angular/core";
export interface DialogConfig<D = unknown> {
    /** Data passed to the dialog content component via the `dialogData` input. */
    data?: D;
    /** Whether clicking the backdrop closes the dialog. Defaults to true. */
    closeOnBackdrop?: boolean;
    /** Additional CSS class(es) to apply to the dialog panel. */
    panelClass?: string | string[];
    /** ARIA label for the dialog (for screen readers). */
    ariaLabel?: string;
    /** Max width of the dialog panel (CSS value). Defaults to '560px'. */
    maxWidth?: string;
}
export interface DialogRef<R = unknown> {
    /** Emits the result value and removes the dialog from the DOM. */
    close(result?: R): void;
    /** Signal that resolves with the result once the dialog closes. */
    readonly closed: ReturnType<typeof signal<R | undefined>>;
}
/**
 * DialogService — programmatically opens Angular components inside a floating
 * overlay without requiring NgModule or z-index hacks.
 *
 * Usage:
 * ```ts
 * const ref = this.dialog.open(MyFormComponent, { data: { id: 42 } });
 * ref.closed(); // reactive signal — undefined until dialog closes
 * ```
 */
export declare class DialogService {
    private appRef;
    private injector;
    private platformId;
    open<C, D = unknown, R = unknown>(component: Type<C>, config?: DialogConfig<D>): DialogRef<R>;
    static ɵfac: i0.ɵɵFactoryDeclaration<DialogService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DialogService>;
}