import { EventEmitter, OnDestroy, ViewContainerRef, TemplateRef } from '@angular/core';
import { Overlay, TemplatePortalDirective } from '../core/index';
import * as i0 from "@angular/core";
export type DialogVisibility = 'initial' | 'visible' | 'hidden';
export type DialogRole = 'dialog' | 'alertdialog';
export declare class Md2DialogConfig {
    role?: DialogRole;
    disableClose?: boolean;
}
export declare class Md2DialogPortal extends TemplatePortalDirective {
    constructor(templateRef: TemplateRef<any>, viewContainerRef: ViewContainerRef);
    static ɵfac: i0.ɵɵFactoryDeclaration<Md2DialogPortal, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<Md2DialogPortal, "[md2DialogPortal]", never, {}, {}, never, never, false, never>;
}
/**
 * Title of a dialog element. Stays fixed to the top of the dialog when scrolling.
 */
export declare class Md2DialogTitle {
    static ɵfac: i0.ɵɵFactoryDeclaration<Md2DialogTitle, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<Md2DialogTitle, "md2-dialog-title", never, {}, {}, never, never, false, never>;
}
/**
 * Scrollable content container of a dialog.
 */
export declare class Md2DialogContent {
    static ɵfac: i0.ɵɵFactoryDeclaration<Md2DialogContent, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<Md2DialogContent, "md2-dialog-content", never, {}, {}, never, never, false, never>;
}
/**
 * Container for the bottom action buttons in a dialog.
 * Stays fixed to the bottom when scrolling.
 */
export declare class Md2DialogActions {
    static ɵfac: i0.ɵɵFactoryDeclaration<Md2DialogActions, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<Md2DialogActions, "md2-dialog-footer, md2-dialog-actions", never, {}, {}, never, never, false, never>;
}
export declare class Md2Dialog implements OnDestroy {
    private _overlay;
    private _parentDialog;
    private _openDialogsAtThisLevel;
    private _boundKeydown;
    private _panelOpen;
    private _overlayRef;
    private _backdropSubscription;
    config: Md2DialogConfig;
    /** Property watched by the animation framework to show or hide the dialog */
    _visibility: DialogVisibility;
    constructor(_overlay: Overlay, _parentDialog: Md2Dialog);
    onOpen: EventEmitter<Md2Dialog>;
    onClose: EventEmitter<Md2Dialog>;
    /** The portal to send the dialog content through */
    _portal: Md2DialogPortal;
    dialogTitle: string;
    ngOnDestroy(): void;
    get _openDialogs(): Array<any>;
    /** Open the dialog */
    open(config?: Md2DialogConfig): Promise<Md2Dialog>;
    /** Close the dialog */
    close(): Promise<Md2Dialog>;
    /** Removes the panel from the DOM. */
    destroyPanel(): void;
    _onPanelDone(): void;
    _handleKeydown(event: KeyboardEvent): void;
    private _subscribeToBackdrop;
    private _createOverlay;
    private _cleanUpSubscriptions;
    static ɵfac: i0.ɵɵFactoryDeclaration<Md2Dialog, [null, { optional: true; skipSelf: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<Md2Dialog, "md2-dialog", ["md2Dialog"], { "dialogTitle": { "alias": "title"; "required": false; }; }, { "onOpen": "onOpen"; "onClose": "onClose"; }, never, ["md2-dialog-title", "md2-dialog-content", "*", "md2-dialog-footer", "md2-dialog-actions"], false, never>;
}