import * as i0 from '@angular/core';
import { Injector, OnInit, OnDestroy, ComponentRef, EventEmitter } from '@angular/core';
import { ContentRef } from 'ng-hub-ui-utils';
import { Subject, Observable } from 'rxjs';

/**
 * Options available when opening new portal windows with `HubPortal.open()` method.
 */
interface HubPortalOptions {
    /**
     * If `true`, portal opening and closing will be animated.
     *
     * @since 8.0.0
     */
    animation?: boolean;
    /**
     * `aria-labelledby` attribute value to set on the portal window.
     *
     * @since 2.2.0
     */
    ariaLabelledBy?: string;
    /**
     * `aria-describedby` attribute value to set on the portal window.
     *
     * @since 6.1.0
     */
    ariaDescribedBy?: string;
    /**
     * Callback right before the portal will be dismissed.
     *
     * If this function returns:
     * * `false`
     * * a promise resolved with `false`
     * * a promise that is rejected
     *
     * then the portal won't be dismissed.
     */
    beforeDismiss?: () => boolean | Promise<boolean>;
    /**
     * A selector specifying the element all new portal windows should be appended to.
     * Since v5.3.0 it is also possible to pass the reference to an `HTMLElement`.
     *
     * If not specified, will be `body`.
     */
    container?: string | HTMLElement;
    /**
     * The `Injector` to use for portal content.
     */
    injector?: Injector;
    /**
     * If `true`, the portal will be closed when `Escape` key is pressed
     *
     * Default value is `true`.
     */
    keyboard?: boolean;
    /**
     * Scrollable portal content (false by default).
     *
     * @since 5.0.0
     */
    scrollable?: boolean;
    /**
     * A custom class to append to the portal window.
     */
    windowClass?: string;
    /**
     * A custom class to append to the portal dialog.
     *
     * @since 9.1.0
     */
    portalDialogClass?: string;
    /**
     * A custom class to append to the portal content.
     *
     * @since 9.1.0
     */
    portalContentClass?: string;
    /**
     * Allows to specify a custom selector for the header element of the portal window. This can be useful if you want to target
     * a specific element within the portal to act as the header, for example, to apply custom styling or functionality to it. By
     * providing a CSS selector string, you can target the desired	header element within the portal content.
     */
    headerSelector?: string;
    /**
     * Allows to specify a custom selector for the footer element of the portal window. This can be useful if you want to target
     * a specific element within the portal to act as the footer, for example, to apply custom styling or functionality to it. By
     * providing a CSS selector string, you can target the desired footer element within the portal content.
     */
    footerSelector?: string;
    /** Used to specify a custom selector for elements that can trigger the dismissal of the portal window. By providing a CSS selector
     * string for `dismissSelector`, you can target specific elements within the portal content that, when interacted with (e.g., clicked),
     * will close or dismiss the portal window.
     */
    dismissSelector?: string;
    /**
     * Used to specify a custom selector for elements that can trigger the closing of the portal window. By providing a CSS selector
     * string for `closeSelector`, you can target specific elements within the portal content that, when interacted with (e.g., clicked),
     * will close the portal window. This allows for customization of the elements that can act as close buttons for the portal.
     */
    closeSelector?: string;
}
/**
 * Options that can be changed on an opened portal with `HubPortalRef.update()` and `HubActivePortal.update()` methods.
 *
 * @since 14.2.0
 */
type HubPortalUpdatableOptions = Pick<HubPortalOptions, 'ariaLabelledBy' | 'ariaDescribedBy' | 'windowClass' | 'portalDialogClass' | 'portalContentClass'>;
/**
 * A configuration service for the [`HubPortal`](#/components/portal/api#HubPortal) service.
 *
 * You can inject this service, typically in your root component, and customize the values of its properties in
 * order to provide default values for all portals used in the application.
 *
 * @since 3.1.0
 */
declare class HubPortalConfig implements Required<HubPortalOptions> {
    private _animation?;
    ariaLabelledBy: string;
    ariaDescribedBy: string;
    beforeDismiss: () => boolean | Promise<boolean>;
    container: string | HTMLElement;
    injector: Injector;
    keyboard: boolean;
    scrollable: boolean;
    windowClass: string;
    portalDialogClass: string;
    portalContentClass: string;
    headerSelector: string;
    footerSelector: string;
    dismissSelector: string;
    closeSelector: string;
    get animation(): boolean;
    set animation(animation: boolean);
    static ɵfac: i0.ɵɵFactoryDeclaration<HubPortalConfig, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HubPortalConfig>;
}

declare class HubPortalWindow implements OnInit, OnDestroy {
    private _document;
    private _elRef;
    private _zone;
    private _closed$;
    private _elWithFocus;
    private readonly _dialogEl;
    readonly animation: i0.InputSignal<boolean>;
    readonly ariaLabelledBy: i0.InputSignal<string | undefined>;
    readonly ariaDescribedBy: i0.InputSignal<string | undefined>;
    readonly scrollable: i0.InputSignal<string | undefined>;
    readonly windowClass: i0.InputSignal<string | undefined>;
    readonly portalDialogClass: i0.InputSignal<string | undefined>;
    readonly portalContentClass: i0.InputSignal<string | undefined>;
    singleContent: boolean;
    readonly dismissEvent: i0.OutputEmitterRef<void>;
    shown: Subject<void>;
    hidden: Subject<void>;
    dismiss(reason: any): void;
    ngOnInit(): void;
    ngOnDestroy(): void;
    hide(): Observable<any>;
    private _show;
    private _disableEventHandling;
    private _setFocus;
    private _restoreFocus;
    static ɵfac: i0.ɵɵFactoryDeclaration<HubPortalWindow, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<HubPortalWindow, "hub-portal-window", never, { "animation": { "alias": "animation"; "required": false; "isSignal": true; }; "ariaLabelledBy": { "alias": "ariaLabelledBy"; "required": false; "isSignal": true; }; "ariaDescribedBy": { "alias": "ariaDescribedBy"; "required": false; "isSignal": true; }; "scrollable": { "alias": "scrollable"; "required": false; "isSignal": true; }; "windowClass": { "alias": "windowClass"; "required": false; "isSignal": true; }; "portalDialogClass": { "alias": "portalDialogClass"; "required": false; "isSignal": true; }; "portalContentClass": { "alias": "portalContentClass"; "required": false; "isSignal": true; }; }, { "dismissEvent": "dismiss"; }, never, ["*", "*", "*", "*"], true, never>;
}

/**
 * A reference to the currently opened (active) portal.
 *
 * Instances of this class can be injected into your component passed as portal content.
 * So you can `.update()`, `.close()` or `.dismiss()` the portal window from your component.
 */
declare class HubActivePortal {
    /**
     * Updates options of an opened portal.
     *
     * @since 14.2.0
     */
    update(options: HubPortalUpdatableOptions): void;
    /**
     * Closes the portal with an optional `result` value.
     *
     * The `HubPortalRef.result` promise will be resolved with the provided value.
     */
    close(result?: any): void;
    /**
     * Dismisses the portal with an optional `reason` value.
     *
     * The `HubPortalRef.result` promise will be rejected with the provided value.
     */
    dismiss(reason?: any): void;
}
/**
 * A reference to the newly opened portal returned by the `HubPortal.open()` method.
 */
declare class HubPortalRef {
    private _windowCmptRef;
    private _contentRef;
    private _beforeDismiss?;
    private _closed;
    private _dismissed;
    private _hidden;
    private _resolve;
    private _reject;
    private _applyWindowOptions;
    /**
     * Updates options of an opened portal.
     *
     * @since 14.2.0
     */
    update(options: HubPortalUpdatableOptions): void;
    /**
     * The instance of a component used for the portal content.
     *
     * When a `TemplateRef` is used as the content or when the portal is closed, will return `undefined`.
     */
    get componentInstance(): any;
    /**
     * The promise that is resolved when the portal is closed and rejected when the portal is dismissed.
     */
    result: Promise<any>;
    /**
     * The observable that emits when the portal is closed via the `.close()` method.
     *
     * It will emit the result passed to the `.close()` method.
     */
    get closed(): Observable<any>;
    /**
     * The observable that emits when the portal is dismissed via the `.dismiss()` method.
     *
     * It will emit the reason passed to the `.dismissed()` method by the user.
     */
    get dismissed(): Observable<any>;
    /**
     * The observable that emits when portal window is closed and animations were finished.
     * At this point portal element will be removed from the DOM tree.
     *
     * This observable will be completed after emitting.
     */
    get hidden(): Observable<void>;
    /**
     * The observable that emits when portal is fully visible and animation was finished.
     * Portal DOM element is always available synchronously after calling 'portal.open()' service.
     *
     * This observable will be completed after emitting.
     * It will not emit, if portal is closed before open animation is finished.
     */
    get shown(): Observable<void>;
    constructor(_windowCmptRef: ComponentRef<HubPortalWindow>, _contentRef: ContentRef, _beforeDismiss?: (() => boolean | Promise<boolean>) | undefined);
    /**
     * Closes the portal with an optional `result` value.
     *
     * The `HubMobalRef.result` promise will be resolved with the provided value.
     */
    close(result?: any): void;
    private _dismiss;
    /**
     * Dismisses the portal with an optional `reason` value.
     *
     * The `HubPortalRef.result` promise will be rejected with the provided value.
     */
    dismiss(reason?: any): void;
    private _removePortalElements;
}

/**
 * A service for opening portal windows.
 *
 * Creating a portal is straightforward: create a component or a template and pass it as an argument to
 * the `.open()` method.
 */
declare class HubPortal {
    private _injector;
    private _portalStack;
    private _config;
    /**
     * Opens a new portal window with the specified content and supplied options.
     *
     * Content can be provided as a `TemplateRef` or a component type. If you pass a component type as content,
     * then instances of those components can be injected with an instance of the `HubActivePortal` class. You can then
     * use `HubActivePortal` methods to close / dismiss portals from "inside" of your component.
     *
     * Also see the [`HubPortalOptions`](#/components/portal/api#HubPortalOptions) for the list of supported options.
     */
    open(content: any, options?: HubPortalOptions): HubPortalRef;
    /**
     * The function `toggle` opens a portal with specified content and options while dismissing any existing portals.
     *
     * @param {any} content - The `content` parameter in the `toggle` function is the content that you want to display within the
     * portal. This can be any type of content such as a component, template, or any other HTML element that you want to show in the
     * portal.
     * @param {HubPortalOptions} options - The `options` parameter in the `toggle` function is an object that allows you to customize
     * the behavior of the portal.
     *
     * @returns The `toggle` function is returning a `HubPortalRef` object.
     */
    toggle(content: any, options?: HubPortalOptions): HubPortalRef;
    /**
     * Returns an observable that holds the active portal instances.
     */
    get activeInstances(): i0.EventEmitter<HubPortalRef[]>;
    /**
     * Dismisses all currently displayed portal windows with the supplied reason.
     *
     * @since 3.1.0
     */
    dismissAll(reason?: any): void;
    /**
     * Indicates if there are currently any open portal windows in the application.
     *
     * @since 3.3.0
     */
    hasOpenPortals(): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<HubPortal, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HubPortal>;
}

declare class HubPortalStack {
    private _applicationRef;
    private _injector;
    private _environmentInjector;
    private _document;
    private _scrollBar;
    private _activeWindowCmptHasChanged;
    private _ariaHiddenValues;
    private _scrollBarRestoreFn;
    private _portalRefs;
    private _windowCmpts;
    private _activeInstances;
    constructor();
    private _restoreScrollBar;
    private _hideScrollBar;
    open(contentInjector: Injector, content: any, options: HubPortalOptions): HubPortalRef;
    /**
     * Toggles a portal by dismissing all existing portals and waiting for them to be hidden
     * before showing the new one.
     *
     * @param contentInjector - The injector to use for dependency injection
     * @param content - The content to display (component, template, or string)
     * @param options - Portal configuration options
     * @returns A reference to the newly created portal
     */
    toggle(contentInjector: Injector, content: any, options: HubPortalOptions): HubPortalRef;
    get activeInstances(): EventEmitter<HubPortalRef[]>;
    dismissAll(reason?: any): void;
    hasOpenPortals(): boolean;
    private _createWindowComponent;
    private _attachWindowComponent;
    private _getContentRef;
    private _createFromTemplateRef;
    private _createFromString;
    private _createFromComponent;
    private _setAriaHidden;
    private _revertAriaHidden;
    private _registerPortalRef;
    private _registerWindowCmpt;
    /**
     * Attaches click event listeners to elements within a container based on a specified dismiss selector to dismiss a portal.
     *
     * @param {HTMLElement} container - The `container` parameter is an HTMLElement that represents the DOM element which contains the
     * portal content.
     * @param {HubActivePortal} context - The `context` parameter in the `_addDismissEventListener` function refers to the active portal
     * instance that is being displayed. It is used to call the `dismiss` method on the portal instance when a dismissible element is
     * clicked.
     * @param {HubPortalOptions} options - The `options` parameter is an object that contains configuration options for the portal. It
     * may include properties such as `dismissSelector`, which is used to specify a CSS selector for elements that, when clicked, will
     * dismiss the portal by calling the `dismiss` method on the `context` object.
     */
    private _addDismissEventListener;
    /**
     * Attaches click event listeners to elements matching a specified selector to close a portal window.
     *
     * @param {HTMLElement} container - The `container` parameter is an HTMLElement that represents the DOM element which contains the
     * portal content.
     * @param {HubActivePortal} context - The `context` parameter in the `_addCloseEventListener` function is of type `HubActivePortal`.
     * It is used to reference the active portal instance within the function and call the `close()` method on it when a close event is
     * triggered.
     * @param {HubPortalOptions} options - The `options` parameter is an object that contains configuration options for the portal. It
     * may include properties such as `closeSelector`, which is used to specify the selector for elements that can trigger the portal
     * to close when clicked.
     */
    private _addCloseEventListener;
    static ɵfac: i0.ɵɵFactoryDeclaration<HubPortalStack, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HubPortalStack>;
}

declare enum PortalDismissReasons {
    BACKDROP_CLICK = 0,
    ESC = 1
}

declare class HubPortalModule {
    static ɵfac: i0.ɵɵFactoryDeclaration<HubPortalModule, never>;
    static ɵmod: i0.ɵɵNgModuleDeclaration<HubPortalModule, never, never, never>;
    static ɵinj: i0.ɵɵInjectorDeclaration<HubPortalModule>;
}

export { HubActivePortal, HubPortal, HubPortalConfig, HubPortalModule, HubPortalRef, HubPortalStack, PortalDismissReasons };
export type { HubPortalOptions, HubPortalUpdatableOptions };