// Copyright 2020-present the Material Components for iOS authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#import <UIKit/UIKit.h>

#import "MDCMinimumOS.h"  // IWYU pragma: keep

@class MDCBottomNavigationBar;

/**
 Delegate protocol for MDCBottomNavigationBar. Clients may implement this protocol to receive
 notifications of selection changes by user action in the bottom navigation bar.
 */
NS_SWIFT_UI_ACTOR
@protocol MDCBottomNavigationBarDelegate <UINavigationBarDelegate>

@optional

/**
 Called before the selected item changes by user action. Return YES to allow the selection. If not
 implemented all items changes are allowed.
 */
- (BOOL)bottomNavigationBar:(nonnull MDCBottomNavigationBar *)bottomNavigationBar
           shouldSelectItem:(nonnull UITabBarItem *)item;

/**
 Called when the selected item changes by user action.
 */
- (void)bottomNavigationBar:(nonnull MDCBottomNavigationBar *)bottomNavigationBar
              didSelectItem:(nonnull UITabBarItem *)item;

@end