import { AccessibilityControlElementBase, KeyboardHelperWithArrowButtonBase } from '@devexpress/analytics-core/analytics-internal-native';
import { ReportPreview } from '../reportPreview';
export declare class PreviewBricksKeyboardHelper extends KeyboardHelperWithArrowButtonBase {
    controlElementClassName: string;
    liveRegionId: string;
    private _needFocusNext;
    private _currentPage;
    private _firstSelectedBrickIndex;
    private _lastSelectedBrickIndex;
    private _resetBricksIndexes;
    private _resetBricks;
    private _activeBricksSubscription;
    private _brickReloadSubscription;
    private _pendingFocusBrickIndex;
    private _restoreBrickTimeout;
    private _bricks;
    private _getSelectedContent;
    private _getDrillDownExpanded;
    private _usePageKeyboardNavigation;
    private _pages;
    private _goToPage;
    private _initTimeout;
    private _liveRegionTimeout;
    private _afterInitializeCallback;
    dispose(): void;
    delayedInit: () => void;
    _subscribeToBricksChanges(): void;
    constructor(viewModel: ReportPreview);
    reset: () => void;
    private _getLiveRegionText;
    private _getEditingFieldLiveRegionText;
    initialize(): void;
    clickHandler(): void;
    itemHandleEscKey(e: any, index: any): boolean;
    private _getRestoreNavigationIndex;
    private _restoreActiveBrick;
    private _announce;
    private _actionExecute;
    private _getNonEmptyBrick;
    private _pageChangeHandle;
    private _activatePage;
    itemHandleHomeKey(e: any, index: any): boolean;
    itemHandleEndKey(e: any, index: any): boolean;
    itemHandleLeftArrowKey(e: any, index: any): boolean;
    itemHandleRightArrowKey(e: any, index: any): boolean;
    itemHandleUpArrowKey(e: any, index: any): boolean;
    itemHandleDownArrowKey(e: any, index: any): boolean;
    private _focusVerticalSiblingPage;
    private _verticaleVisibilityTolerance;
    private _getVerticalSiblingPageIndex;
    itemHandleEnterKey(e: any, index: any): boolean;
    itemHandleSpaceKey(e: any, index: any): boolean;
    setFocusToPrevious(currentIndex: number): number;
    setFocusToNext(currentIndex: number): number;
    createControlElement(element: HTMLElement, index?: number): PreviewPageControlsElement;
    active: boolean;
}
declare class PreviewPageControlsElement extends AccessibilityControlElementBase {
    element: HTMLElement;
    private _keyboardHelper;
    dispose(): void;
    private _focusHandler;
    constructor(element: HTMLElement, _keyboardHelper: PreviewBricksKeyboardHelper);
}
export {};