components/BottomSheet/src/UIViewController+MaterialBottomSheet.m

// Copyright 2017-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 "UIViewController+MaterialBottomSheet.h"

#import "MDCBottomSheetPresentationController.h"

@implementation UIViewController (MaterialBottomSheet)

#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
- (MDCBottomSheetPresentationController *)mdc_bottomSheetPresentationController {
  id presentationController = self.presentationController;
  if ([presentationController isKindOfClass:[MDCBottomSheetPresentationController class]]) {
    return (MDCBottomSheetPresentationController *)presentationController;
  }
#pragma clang diagnostic pop

  return nil;
}

@end