/**
 * 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 { Platform } from '@angular/cdk/platform';
import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, NgZone, OnChanges, OnDestroy, OnInit, Renderer2, SimpleChanges } from '@angular/core';
import { VtsConfigKey, VtsConfigService } from '@ui-vts-kit/ng-vts/core/config';
import { VtsScrollService } from '@ui-vts-kit/ng-vts/core/services';
import { NumberInput, VtsSafeAny } from '@ui-vts-kit/ng-vts/core/types';
import { Direction, Directionality } from '@angular/cdk/bidi';
import { SimpleRect } from './utils';
import * as i0 from "@angular/core";
export declare class VtsAffixComponent implements AfterViewInit, OnChanges, OnDestroy, OnInit {
    vtsConfigService: VtsConfigService;
    private scrollSrv;
    private ngZone;
    private platform;
    private renderer;
    private cdr;
    private directionality;
    readonly _vtsModuleName: VtsConfigKey;
    static ngAcceptInputType_vtsOffsetTop: NumberInput;
    static ngAcceptInputType_vtsOffsetBottom: NumberInput;
    private fixedEl;
    vtsTarget?: string | Element | Window;
    vtsOffsetTop?: null | number;
    vtsOffsetBottom?: null | number;
    readonly vtsChange: EventEmitter<boolean>;
    dir: Direction;
    private readonly placeholderNode;
    private affixStyle?;
    private placeholderStyle?;
    private positionChangeSubscription;
    private offsetChanged$;
    private destroy$;
    private timeout?;
    private document;
    private get target();
    constructor(el: ElementRef, doc: VtsSafeAny, vtsConfigService: VtsConfigService, scrollSrv: VtsScrollService, ngZone: NgZone, platform: Platform, renderer: Renderer2, cdr: ChangeDetectorRef, directionality: Directionality);
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    private registerListeners;
    private removeListeners;
    getOffset(element: Element, target: Element | Window | undefined): SimpleRect;
    private setAffixStyle;
    private setPlaceholderStyle;
    private syncPlaceholderStyle;
    updatePosition(e: Event): void;
    private updateRtlClass;
    static ɵfac: i0.ɵɵFactoryDeclaration<VtsAffixComponent, [null, null, null, null, null, null, null, null, { optional: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<VtsAffixComponent, "vts-affix", ["vtsAffix"], { "vtsTarget": { "alias": "vtsTarget"; "required": false; }; "vtsOffsetTop": { "alias": "vtsOffsetTop"; "required": false; }; "vtsOffsetBottom": { "alias": "vtsOffsetBottom"; "required": false; }; }, { "vtsChange": "vtsChange"; }, never, ["*"], false, never>;
}