mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-15 13:28:18 +00:00
a415ef5552
Summary: Original comment: If you insert or delete into the same index twice **and** update your data source to reflect those changes, we will squash the insert/delete into a single update because we're using `NSSet` internally. This becomes very apparent when multiple updates are coalesced. Issue fixed: #483 - [x] All tests pass. Demo project builds and runs. - [x] I added tests, an experiment, or detailed why my change isn't tested. - [x] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes. Closes https://github.com/Instagram/IGListKit/pull/634 Differential Revision: D4860479 Pulled By: jessesquires fbshipit-source-id: 3aa271d90fca21b11201f62cefa8d7fbcef6930f
87 lines
2.4 KiB
Objective-C
87 lines
2.4 KiB
Objective-C
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <Foundation/Foundation.h>
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#import <IGListKit/IGListMacros.h>
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#import <IGListKit/IGListMoveIndex.h>
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#import <IGListKit/IGListMoveIndexPath.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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An instance of `IGListBatchUpdateData` takes section indexes and item index paths
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and performs cleanup on init in order to perform a crash-free
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update via `-[UICollectionView performBatchUpdates:completion:]`.
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*/
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IGLK_SUBCLASSING_RESTRICTED
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@interface IGListBatchUpdateData : NSObject
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/**
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Section insert indexes.
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*/
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@property (nonatomic, strong, readonly) NSIndexSet *insertSections;
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/**
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Section delete indexes.
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*/
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@property (nonatomic, strong, readonly) NSIndexSet *deleteSections;
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/**
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Section moves.
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*/
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@property (nonatomic, strong, readonly) NSSet<IGListMoveIndex *> *moveSections;
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/**
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Item insert index paths.
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*/
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@property (nonatomic, strong, readonly) NSArray<NSIndexPath *> *insertIndexPaths;
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/**
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Item delete index paths.
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*/
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@property (nonatomic, strong, readonly) NSArray<NSIndexPath *> *deleteIndexPaths;
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/**
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Item moves.
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*/
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@property (nonatomic, strong, readonly) NSArray<IGListMoveIndexPath *> *moveIndexPaths;
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/**
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Creates a new batch update object with section and item operations.
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@param insertSections Section indexes to insert.
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@param deleteSections Section indexes to delete.
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@param moveSections Section moves.
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@param insertIndexPaths Item index paths to insert.
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@param deleteIndexPaths Item index paths to delete.
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@param moveIndexPaths Item index paths to move.
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@return A new batch update object.
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*/
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- (instancetype)initWithInsertSections:(NSIndexSet *)insertSections
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deleteSections:(NSIndexSet *)deleteSections
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moveSections:(NSSet<IGListMoveIndex *> *)moveSections
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insertIndexPaths:(NSArray<NSIndexPath *> *)insertIndexPaths
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deleteIndexPaths:(NSArray<NSIndexPath *> *)deleteIndexPaths
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moveIndexPaths:(NSArray<IGListMoveIndexPath *> *)moveIndexPaths NS_DESIGNATED_INITIALIZER;
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/**
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:nodoc:
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*/
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- (instancetype)init NS_UNAVAILABLE;
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/**
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:nodoc:
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*/
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+ (instancetype)new NS_UNAVAILABLE;
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@end
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NS_ASSUME_NONNULL_END
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