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/**
* @license
* Copyright Google LLC 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://angular.io/license
*/
import { EventEmitter, OnChanges, OnDestroy, OnInit } from '@angular/core';
import { CanDisable, CanDisableCtor, HasInitialized, HasInitializedCtor } from '@angular/material/core';
import { Subject } from 'rxjs';
import { SortDirection } from './sort-direction';
/** Interface for a directive that holds sorting state consumed by `MatSortHeader`. */
export interface MatSortable {
/** The id of the column being sorted. */
id: string;
/** Starting sort direction. */
start: 'asc' | 'desc';
/** Whether to disable clearing the sorting state. */
disableClear: boolean;
}
/** The current sort state. */
export interface Sort {
/** The id of the column being sorted. */
active: string;
/** The sort direction. */
direction: SortDirection;
}
/** @docs-private */
declare class MatSortBase {
}
declare const _MatSortMixinBase: HasInitializedCtor & CanDisableCtor & typeof MatSortBase;
/** Container for MatSortables to manage the sort state and provide default sort parameters. */
export declare class MatSort extends _MatSortMixinBase implements CanDisable, HasInitialized, OnChanges, OnDestroy, OnInit {
/** Collection of all registered sortables that this directive manages. */
sortables: Map<string, MatSortable>;
/** Used to notify any child components listening to state changes. */
readonly _stateChanges: Subject<void>;
/** The id of the most recently sorted MatSortable. */
active: string;
/**
* The direction to set when an MatSortable is initially sorted.
* May be overriden by the MatSortable's sort start.
*/
start: 'asc' | 'desc';
/** The sort direction of the currently active MatSortable. */
direction: SortDirection;
private _direction;
/**
* Whether to disable the user from clearing the sort by finishing the sort direction cycle.
* May be overriden by the MatSortable's disable clear input.
*/
disableClear: boolean;
private _disableClear;
/** Event emitted when the user changes either the active sort or sort direction. */
readonly sortChange: EventEmitter<Sort>;
/**
* Register function to be used by the contained MatSortables. Adds the MatSortable to the
* collection of MatSortables.
*/
register(sortable: MatSortable): void;
/**
* Unregister function to be used by the contained MatSortables. Removes the MatSortable from the
* collection of contained MatSortables.
*/
deregister(sortable: MatSortable): void;
/** Sets the active sort id and determines the new sort direction. */
sort(sortable: MatSortable): void;
/** Returns the next sort direction of the active sortable, checking for potential overrides. */
getNextSortDirection(sortable: MatSortable): SortDirection;
ngOnInit(): void;
ngOnChanges(): void;
ngOnDestroy(): void;
}
export {};