import { ElementRef, OnDestroy, OnInit } from '@angular/core';
import { DatasourceComponent } from './ds-datasource.component';
import * as i0 from "@angular/core";
export declare class DatasourceSortDirective implements OnInit, OnDestroy {
    sortField: string;
    datasource: DatasourceComponent;
    setIconLeft: boolean;
    sortIconAlign: 'left' | 'right';
    private nativeElement;
    constructor(el: ElementRef);
    private subscriptions;
    ngOnInit(): void;
    ngOnDestroy(): void;
    private onTableSortingChanged;
    private setClassNone;
    private setClassAsc;
    private setClassDesc;
    private setClassIconLeft;
    private removeClass;
    private addClass;
    protected onClick(event: PointerEvent): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<DatasourceSortDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DatasourceSortDirective, "[ds-sort]", never, { "sortField": { "alias": "ds-sort"; "required": false; }; "datasource": { "alias": "datasource"; "required": false; }; "setIconLeft": { "alias": "icon-left"; "required": false; }; "sortIconAlign": { "alias": "ds-sort-icon-align"; "required": false; }; }, {}, never, never, false, never>;
}