mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-14 12:58:34 +00:00
8a645139b2
Summary: Closed #402 - [x] All tests pass. Demo project builds and runs. - [x] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes. Closes https://github.com/Instagram/IGListKit/pull/453 Differential Revision: D4479611 Pulled By: rnystrom fbshipit-source-id: 4c93ce30613e45c19478f9f5d0e59eeeb0142766
86 lines
2.1 KiB
Objective-C
86 lines
2.1 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/IGListMoveIndex.h>
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NS_ASSUME_NONNULL_BEGIN
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/**
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A result object returned when diffing with indexes.
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*/
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@interface IGListIndexSetResult : NSObject
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/**
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The indexes inserted into the new collection.
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*/
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@property (nonatomic, strong, readonly) NSIndexSet *inserts;
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/**
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The indexes deleted from the old collection.
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*/
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@property (nonatomic, strong, readonly) NSIndexSet *deletes;
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/**
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The indexes in the old collection that need updated.
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*/
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@property (nonatomic, strong, readonly) NSIndexSet *updates;
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/**
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The moves from an index in the old collection to an index in the new collection.
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*/
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@property (nonatomic, copy, readonly) NSArray<IGListMoveIndex *> *moves;
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/**
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A Read-only boolean that indicates whether the result has any changes or not.
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`YES` if the result has changes, `NO` otherwise.
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*/
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@property (nonatomic, assign, readonly) BOOL hasChanges;
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/**
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Returns the index of the object with the specified identifier *before* the diff.
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@param identifier The diff identifier of the object.
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@return The index of the object before the diff, or `NSNotFound`.
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@see `-[IGListDiffable diffIdentifier]`.
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*/
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- (NSInteger)oldIndexForIdentifier:(id<NSObject>)identifier;
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/**
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Returns the index of the object with the specified identifier *after* the diff.
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@param identifier The diff identifier of the object.
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@return The index path of the object after the diff, or `NSNotFound`.
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@see `-[IGListDiffable diffIdentifier]`.
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*/
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- (NSInteger)newIndexForIdentifier:(id<NSObject>)identifier;
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/**
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Creates a new result object with operations safe for use in `UITableView` and `UICollectionView` batch updates.
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*/
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- (IGListIndexSetResult *)resultForBatchUpdates;
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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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