// 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>

@class MDCFlexibleHeaderTopSafeArea;

API_DEPRECATED_BEGIN("Use a branded UINavigationController instead.", ios(12, API_TO_BE_DEPRECATED))

/**
 The delegate protocol through which MDCFlexibleHeaderTopSafeArea communicates changes in the top
 safe area inset.
 */
@protocol MDCFlexibleHeaderTopSafeAreaDelegate
@required

/**
 Informs the receiver that the topSafeAreaInset value has changed.
 */
- (void)flexibleHeaderSafeAreaTopSafeAreaInsetDidChange:
    (nonnull MDCFlexibleHeaderTopSafeArea *)safeAreas;

/**
 Asks the receiver whether the status bar is likely shifted off-screen by the owner.
 */
- (BOOL)flexibleHeaderSafeAreaIsStatusBarShifted:(nonnull MDCFlexibleHeaderTopSafeArea *)safeAreas;

/**
 Asks the receiver to return the device's top safe area inset.
 */
- (CGFloat)flexibleHeaderSafeAreaDeviceTopSafeAreaInset:
    (nonnull MDCFlexibleHeaderTopSafeArea *)safeAreas;

@end

API_DEPRECATED_END
