import { Overlay } from '@angular/cdk/overlay';
import { ChangeDetectorRef, ElementRef, EventEmitter, OnDestroy, OnInit } from '@angular/core';
import { TsButtonComponent } from '@terminus/ui/button';
/**
 * Define the accepted string values for the {@link TsConfirmationOverlayComponent} position
 */
export declare type TsConfirmationOverlayPositionTypes = 'above' | 'below' | 'before' | 'after';
/**
 * Define the allowed tooltips Used by {@link TsConfirmationOverlayComponent} position
 */
export declare const allowedOverlayPositionTypes: TsConfirmationOverlayPositionTypes[];
/**
 * A directive to inject a confirmation step into any button
 *
 * @example
 *         <ts-button
 *           tsConfirmation
 *           cancelButtonText="Abort!"
 *           confirmationButtonText="Confirm!"
 *           explanationText="Are you sure you want to do this?"
 *           overlayPosition="before"
 *           (cancelled)="myFunction($event)"
 *         >
 *           Click me!
 *         </ts-button>
 *
 * <example-url>https://getterminus.github.io/ui-demos-release/components/confirmation</example-url>
 */
export declare class TsConfirmationDirective implements OnDestroy, OnInit {
    private elementRef;
    private overlay;
    private host;
    private changeDetectorRef;
    /**
     * Store a reference to the created confirmation overlay
     */
    private overlayInstance;
    /**
     * Store a reference to the overlay overlay
     */
    private overlayRef;
    /**
     * Define the confirmation button text
     *
     * @param value
     */
    set confirmationButtonText(value: string);
    get confirmationButtonText(): string;
    private _confirmationButtonText;
    /**
     * Define the cancel button text
     *
     * @param value
     */
    set cancelButtonText(value: string);
    get cancelButtonText(): string;
    private _cancelButtonText;
    /**
     * Define the explanation text
     */
    explanationText: string | undefined;
    /**
     * Define position of the overlay
     *
     * @param value
     */
    set overlayPosition(value: TsConfirmationOverlayPositionTypes);
    get overlayPosition(): TsConfirmationOverlayPositionTypes;
    private _overlayPosition;
    /**
     * An event emitted when the confirmation is cancelled
     */
    readonly cancelled: EventEmitter<boolean>;
    constructor(elementRef: ElementRef, overlay: Overlay, host: TsButtonComponent, changeDetectorRef: ChangeDetectorRef);
    /**
     * Spawn the confirmation overlay on click
     *
     * NOTE: Even though the 'event' param is not used, the param must exist for AoT to pass.
     *
     * @param event
     */
    onClick(event: Event): void;
    /**
     * Dismiss the confirmation overlay on pressing escape
     */
    onKeydownHandler(): void;
    /**
     * Set a flag in the {@link TsButtonComponent} to intercept the click
     */
    ngOnInit(): void;
    /**
     * Dismiss the overlay and clean up observables
     */
    ngOnDestroy(): void;
    /**
     * Create and attach the confirmation overlay
     */
    private createOverlay;
    /**
     * Configure the overlay
     *
     * @param value
     */
    private generateOverlayConfig;
    /**
     * Dismiss the overlay
     */
    private dismissOverlay;
}