import { AfterViewInit, ElementRef, EventEmitter, Injector, OnChanges, OnDestroy, SimpleChanges, TemplateRef } from '@angular/core';
import { NgtStylizableDirective } from '../../../directives/ngt-stylizable/ngt-stylizable.directive';
import { NgtStylizableService } from '../../../services/ngt-stylizable/ngt-stylizable.service';
import { NgtInputComponent } from '../../forms/template-driven/ngt-input/ngt-input.component';
import { NgtDatatableComponent } from '../ngt-datatable.component';
import * as i0 from "@angular/core";
export declare class NgtThComponent implements OnChanges, OnDestroy, AfterViewInit {
    private injector;
    private hostElement;
    private ngtStylizableDirective;
    ngtDataTable: NgtDatatableComponent;
    searchInput: NgtInputComponent;
    modal: TemplateRef<any>;
    reference: string;
    sortReference: string;
    modalWidth: string;
    searchModalOverflow: string;
    sortable: boolean;
    searchable: boolean;
    hasCustomSearch: boolean;
    searchLabel: string;
    searchIcon: string;
    sortableTooltip: NgtSortableTooltip;
    onEnableSearch: EventEmitter<any>;
    inputFocused: boolean;
    isCurrentSort: boolean;
    sortDirection: string;
    searchTerm: any;
    customSearchTerm: any;
    ngtStyle: NgtStylizableService;
    filterModalHeaderStyle: NgtStylizableService;
    filterModalBodyStyle: NgtStylizableService;
    private subscriptions;
    constructor(injector: Injector, hostElement: ElementRef, ngtStylizableDirective: NgtStylizableDirective, ngtDataTable: NgtDatatableComponent);
    ngOnChanges(changes: SimpleChanges): void;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    sort(): Promise<void>;
    enableSearch(event: any): void;
    search(term: any): void;
    customSearch(term: any): void;
    getTooltip(): string;
    private getSortReference;
    private checkDataTable;
    private checkReference;
    private getNextSortDirection;
    private bindNgtStyle;
    private applyHeadBgColor;
    private destroySubscriptions;
    static ɵfac: i0.ɵɵFactoryDeclaration<NgtThComponent, [null, null, { optional: true; self: true; }, { optional: true; skipSelf: true; }]>;
    static ɵcmp: i0.ɵɵComponentDeclaration<NgtThComponent, "[ngt-th]", never, { "reference": { "alias": "reference"; "required": false; }; "sortReference": { "alias": "sortReference"; "required": false; }; "modalWidth": { "alias": "modalWidth"; "required": false; }; "searchModalOverflow": { "alias": "searchModalOverflow"; "required": false; }; "sortable": { "alias": "sortable"; "required": false; }; "searchable": { "alias": "searchable"; "required": false; }; "hasCustomSearch": { "alias": "hasCustomSearch"; "required": false; }; "searchLabel": { "alias": "searchLabel"; "required": false; }; "searchIcon": { "alias": "searchIcon"; "required": false; }; "sortableTooltip": { "alias": "sortableTooltip"; "required": false; }; }, { "onEnableSearch": "onEnableSearch"; }, never, ["*", "[customSearchHeader]", "[customSearch]"], false, never>;
}
export interface NgtSortableTooltip {
    ascending: string;
    descending: string;
    unordered: string;
}