Swiftgram/submodules/AsyncDisplayKit/Source/ASSupplementaryNodeSource.h
Peter 9bc996374f Add 'submodules/AsyncDisplayKit/' from commit '02bedc12816e251ad71777f9d2578329b6d2bef6'
git-subtree-dir: submodules/AsyncDisplayKit
git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632
git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
2019-06-11 18:42:43 +01:00

56 lines
1.7 KiB
Objective-C

//
// ASSupplementaryNodeSource.h
// Texture
//
// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
//
#ifndef MINIMAL_ASDK
#import <Foundation/Foundation.h>
#import <AsyncDisplayKit/ASBlockTypes.h>
#import <AsyncDisplayKit/ASDimension.h>
NS_ASSUME_NONNULL_BEGIN
@protocol ASSupplementaryNodeSource <NSObject>
@optional
/**
* A method to provide the node-block for the supplementary element.
*
* @param elementKind The kind of supplementary element.
* @param index The index of the item.
* @return A node block for the supplementary element.
* @see collectionNode:nodeForSupplementaryElementOfKind:atIndexPath:
*/
- (ASCellNodeBlock)nodeBlockForSupplementaryElementOfKind:(NSString *)elementKind atIndex:(NSInteger)index;
/**
* Asks the controller to provide a node to display for the given supplementary element.
*
* @param kind The kind of supplementary element.
* @param index The index of the item.
*/
- (ASCellNode *)nodeForSupplementaryElementOfKind:(NSString *)kind atIndex:(NSInteger)index;
/**
* A method to provide the size range used for measuring the supplementary
* element of the given kind at the given index.
*
* @param elementKind The kind of supplementary element.
* @param index The index of the item.
* @return A size range used for asynchronously measuring the node.
* @see collectionNode:constrainedSizeForSupplementaryElementOfKind:atIndexPath:
*/
- (ASSizeRange)sizeRangeForSupplementaryElementOfKind:(NSString *)elementKind atIndex:(NSInteger)index;
@end
NS_ASSUME_NONNULL_END
#endif