import { IntroJsOptions } from './IntroJsOptions';
export declare class IntroJsImplementation {
    private DOMEvent;
    _targetElement: any;
    _introItems: any[];
    _options: IntroJsOptions;
    _currentStep: any;
    _currentStepNumber: any;
    _introCompleteCallback: any;
    _introBeforeChangeCallback: any;
    _introBeforeExitCallback: any;
    _introExitCallback: any;
    _introChangeCallback: any;
    _introAfterChangeCallback: any;
    _lastShowElementTimer: any;
    _introSkipCallback: any;
    _hintCloseCallback: any;
    _hintsAddedCallback: any;
    _hintClickCallback: any;
    _direction: any;
    constructor(obj: any);
    _introForElement(targetElm: any, group: any): boolean;
    private _onResize;
    private _onKeyDown;
    private _cloneObject;
    _goToStep(step: any): void;
    _goToStepNumber(step: any): void;
    _nextStep(): boolean;
    _previousStep(): boolean;
    _refresh(): void;
    _exitIntro(targetElement: any, force?: boolean): void;
    private _placeTooltip;
    private _checkRight;
    private _checkLeft;
    private _determineAutoPosition;
    private _determineAutoAlignment;
    private _removeEntry;
    private _setHelperLayerPosition;
    private _disableInteraction;
    private _setAnchorAsButton;
    private _showElement;
    private _scrollTo;
    private _removeShowElement;
    private _setShowElement;
    private _forEach;
    private _addClass;
    private _removeClass;
    private _getPropValue;
    private _isFixed;
    private _getWinSize;
    private _elementInViewport;
    private _addOverlayLayer;
    private _removeHintTooltip;
    _populateHints(targetElm: any): boolean;
    private _reAlignHints;
    private _hintQuerySelectorAll;
    _hideHint(stepId: any): void;
    _hideHints(): void;
    _showHints(): void;
    _showHint(stepId: any): void;
    _removeHints(): void;
    _removeHint(stepId: any): void;
    private _addHints;
    private _alignHintPosition;
    _showHintDialog(stepId: any): void;
    private _getOffset;
    private _getScrollParent;
    private _scrollParentToElement;
    private _getProgress;
}