import { ComponentRef, EmbeddedViewRef, ElementRef, OnInit } from '@angular/core';
import { BasePortalOutlet, ComponentPortal, CdkPortalOutlet, TemplatePortal } from '@angular/cdk/portal';
import { OuiDialogConfig } from './dialog-config';
import { ConfigurableFocusTrapFactory } from '@angular/cdk/a11y';
import * as i0 from "@angular/core";
/**
 * Throws an exception for the case when a ComponentPortal is
 * attached to a DomPortalOutlet without an origin.
 *
 * @docs-private
 */
export declare function throwOuiDialogContentAlreadyAttachedError(): void;
/**
 * Internal component that wraps user-provided dialog content.
 *
 * @docs-private
 */
export declare class OuiDialogContainer extends BasePortalOutlet implements OnInit {
    private _focusTrapFactory;
    _config: OuiDialogConfig;
    elementRef: ElementRef<HTMLElement>;
    private _document;
    /** The portal outlet inside of this container into which the dialog content will be loaded. */
    _portalOutlet: CdkPortalOutlet;
    /** The class that traps and manages focus within the dialog. */
    private _focusTrap;
    /** Element that was focused before the dialog was opened. Save this to restore upon close. */
    private _elementFocusedBeforeDialogWasOpened;
    /** ID of the element that should be considered as the dialog's label. */
    _ariaLabelledBy: string | null;
    /** ID for the container DOM element. */
    _id: string;
    constructor(_focusTrapFactory: ConfigurableFocusTrapFactory, _config: OuiDialogConfig, elementRef: ElementRef<HTMLElement>, _document: Document);
    ngOnInit(): void;
    private _addMarginForDefaultScroll;
    /**
     * Attach a ComponentPortal as content to this dialog container.
     *
     * @param portal Portal to be attached as the dialog content.
     */
    attachComponentPortal<T>(portal: ComponentPortal<T>): ComponentRef<T>;
    /**
     * Attach a TemplatePortal as content to this dialog container.
     *
     * @param portal Portal to be attached as the dialog content.
     */
    attachTemplatePortal<C>(portal: TemplatePortal<C>): EmbeddedViewRef<C>;
    /** Moves the focus inside the focus trap. */
    _trapFocus(): void;
    /** Restores focus to the element that was focused before the dialog opened. */
    _restoreFocus(): void;
    /**
     * Dynamically adds or removes focus from the dialog container.
     *
     * @param addFocus Whether to add focus (true) or remove focus (false).
     */
    _toggleFocus(addFocus: boolean): void;
    /**
     * Setting up the focus trap and saves a reference to the element that was focused before the dialog was open.
     */
    private _addFocusTrap;
    /** Only return when there is focus inside the dialog */
    private _containsFocus;
    /**
     * Removes the focus trap from the dialog.
     * This method is called to clean up resources and ensure the dialog no longer traps focus.
     */
    private _removeFocusTrap;
    static ɵfac: i0.ɵɵFactoryDeclaration<OuiDialogContainer, [null, null, null, { optional: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<OuiDialogContainer, "oui-dialog-container", never, {}, {}, never, never, false, never>;
}
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