import { EventEmitter } from '@angular/core';
import * as i0 from "@angular/core";
export declare class WizardStepComponent {
    private readonly _wizardService;
    private readonly _changeDetector;
    /** The text to be displayed in the wizard step tab. */
    header: string;
    /**
     * If set to `true` the 'Next' or 'Finish' button will become disabled when the current step is invalid.
     * This will override the value set on the `ux-wizard`.
     */
    disableNextWhenInvalid: boolean | undefined;
    /**
     * Defines whether a step is valid. The user will not be able to proceed to the next step if this property has a value of false.
     * If the new value is false is will also set the visited value to false.
     */
    _valid: boolean;
    set valid(value: boolean);
    get valid(): boolean;
    /**
     * A custom function which returns the validation status for the step. This function will be called when 'Next' or
     * 'Finish' is clicked. A promise may be returned if asynchronous validation is required. If using this property,
     * ensure that `disableNextWhenInvalid` is false.
     */
    validator: () => boolean | Promise<boolean>;
    /**
     * Defines whether or not this step has previously been visited.
     * A visited step can be clicked on and jumped to at any time.
     * By default, steps will become 'visited' when the user navigates to a step for the first time.
     */
    visited: boolean;
    /** Emits when visited changes. */
    visitedChange: EventEmitter<boolean>;
    set active(value: boolean);
    get active(): boolean;
    /**
     * Defines the currently visible step.
     */
    _active: boolean;
    setVisitedAndEmitChangeEvent(value: boolean): void;
    protected setValid(value: boolean): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<WizardStepComponent, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<WizardStepComponent, "ux-wizard-step", never, { "header": { "alias": "header"; "required": false; }; "disableNextWhenInvalid": { "alias": "disableNextWhenInvalid"; "required": false; }; "valid": { "alias": "valid"; "required": false; }; "validator": { "alias": "validator"; "required": false; }; "visited": { "alias": "visited"; "required": false; }; }, { "visitedChange": "visitedChange"; }, never, ["*"], false, never>;
}