import { CdkColumnDef } from '@angular/cdk/table';
import { ChangeDetectorRef, OnDestroy, OnInit } from '@angular/core';
import { CanDisable } from '@angular/material/core';
import { TsSortHeaderIntl } from './sort-header-intl';
import { TsSortableItem, TsSortDirective } from './sort.directive';
/**
 * Applies sorting behavior (click to change sort) and styles to an element, including an
 * arrow to display the current sort direction.
 *
 * Must be provided with an id and contained within a parent TsSortDirective.
 *
 * If used on header cells in a CdkTable, it will automatically default its id from its containing
 * column definition.
 *
 * @example
 * <ts-header-cell *tsHeaderCellDef ts-sort-header>
 *              Created
 * </ts-header-cell>
 *
 * <example-url>https://getterminus.github.io/ui-demos-release/components/table</example-url>
 */
export declare class TsSortHeaderComponent implements TsSortableItem, CanDisable, OnInit, OnDestroy {
    _intl: TsSortHeaderIntl;
    private changeDetectorRef;
    _sort: TsSortDirective;
    _cdkColumnDef: CdkColumnDef;
    disabled: boolean;
    /**
     * ID of this sort header. If used within the context of a CdkColumnDef, this will default to
     * the column's name.
     */
    id: string;
    /**
     * Sets the position of the arrow that displays when sorted
     */
    arrowPosition: 'before' | 'after';
    /**
     * Overrides the sort start value of the containing TsSort for this TsSortable
     */
    start: 'asc' | 'desc';
    /**
     * Overrides the disable clear value of the containing TsSort for this TsSortable
     *
     * @param value
     */
    set disableClear(value: boolean);
    get disableClear(): boolean;
    private _disableClear;
    constructor(_intl: TsSortHeaderIntl, changeDetectorRef: ChangeDetectorRef, _sort: TsSortDirective, _cdkColumnDef: CdkColumnDef);
    /**
     * Default to cdk column name
     */
    ngOnInit(): void;
    /**
     * Deregister sort and unsubscribe from observables
     */
    ngOnDestroy(): void;
    /**
     * Handles click events on the header
     */
    _handleClick(): void;
    /**
     * Whether this TsSortHeader is currently sorted in either ascending or descending order
     */
    _isSorted(): boolean;
    /**
     * Whether this TsSortHeader is disabled
     */
    _isDisabled(): boolean;
}