Swiftgram/Source/Details/ASCollectionInternal.h
2017-02-26 18:14:13 -08:00

58 lines
2.0 KiB
Objective-C

//
// ASCollectionInternal.h
// AsyncDisplayKit
//
// Created by Scott Goodson on 1/1/16.
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
#import <AsyncDisplayKit/ASCollectionView.h>
NS_ASSUME_NONNULL_BEGIN
@protocol ASCollectionViewLayoutFacilitatorProtocol;
@class ASCollectionNode;
@class ASDataController;
@class ASRangeController;
@interface ASCollectionView ()
- (instancetype)_initWithFrame:(CGRect)frame collectionViewLayout:(UICollectionViewLayout *)layout layoutFacilitator:(nullable id<ASCollectionViewLayoutFacilitatorProtocol>)layoutFacilitator eventLog:(nullable ASEventLog *)eventLog;
@property (nonatomic, weak, readwrite) ASCollectionNode *collectionNode;
@property (nonatomic, strong, readonly) ASDataController *dataController;
@property (nonatomic, strong, readonly) ASRangeController *rangeController;
/**
* Attempt to get the view-layer index path for the item with the given index path.
*
* @param indexPath The index path of the item.
* @param wait If the item hasn't reached the view yet, this attempts to wait for updates to commit.
*/
- (nullable NSIndexPath *)convertIndexPathFromCollectionNode:(NSIndexPath *)indexPath waitingIfNeeded:(BOOL)wait;
/**
* Attempt to get the node index path given the view-layer index path.
*
* @param indexPath The index path of the row.
*/
- (nullable NSIndexPath *)convertIndexPathToCollectionNode:(NSIndexPath *)indexPath;
/**
* Attempt to get the node index paths given the view-layer index paths.
*
* @param indexPaths An array of index paths in the view space
*/
- (nullable NSArray<NSIndexPath *> *)convertIndexPathsToCollectionNode:(nullable NSArray<NSIndexPath *> *)indexPaths;
- (void)beginUpdates;
- (void)endUpdatesAnimated:(BOOL)animated completion:(nullable void (^)(BOOL))completion;
@end
NS_ASSUME_NONNULL_END