/**
 * @license
 * Copyright Alibaba.com All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { ChangeDetectorRef, ElementRef, OnChanges, SimpleChanges } from '@angular/core';
import { BooleanInput, NgStyleInterface } from 'ng-zorro-antd/core/types';
import { NzTooltipDirective } from 'ng-zorro-antd/tooltip';
import { NzSliderService } from './slider.service';
import { NzSliderShowTooltip } from './typings';
export declare class NzSliderHandleComponent implements OnChanges {
    private sliderService;
    private cdr;
    static ngAcceptInputType_active: BooleanInput;
    handleEl?: ElementRef;
    tooltip?: NzTooltipDirective;
    vertical?: boolean;
    offset?: number;
    value?: number;
    tooltipVisible: NzSliderShowTooltip;
    tooltipPlacement?: string;
    tooltipFormatter?: null | ((value: number) => string);
    active: boolean;
    tooltipTitle?: string;
    style: NgStyleInterface;
    constructor(sliderService: NzSliderService, cdr: ChangeDetectorRef);
    ngOnChanges(changes: SimpleChanges): void;
    enterHandle: () => void;
    leaveHandle: () => void;
    focus(): void;
    private toggleTooltip;
    private updateTooltipTitle;
    private updateTooltipPosition;
    private updateStyle;
}