mirror of
https://github.com/Instagram/IGListKit
synced 2026-04-21 21:47:34 +00:00
a1b9c2ddb3
Summary: A quick push to fix something I noticed while studying how IGListKit works. This simply replaces "Facebook, Inc" with "Meta Platforms, Inc" in all of the source files where the company copyright notice is posted. This should help bring our external facing projects more in line with our new corporate branding. There's still a lot more references to "Facebook" as a company in the library (especially around linking to other Meta sponsored open source libraries), but this might need additional scrutiny and review on a case-by-case basis, so let's handle those ones separately. Reviewed By: lorixx Differential Revision: D41207363 fbshipit-source-id: 57cdbf5eb1023b41a5f32c0c05e01628686a19fe
93 lines
3.5 KiB
Objective-C
93 lines
3.5 KiB
Objective-C
/*
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* Copyright (c) Meta Platforms, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#import "IGListIndexSetResult.h"
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#import "IGListIndexSetResultInternal.h"
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@implementation IGListIndexSetResult {
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NSMapTable<id<NSObject>, NSNumber *> *_oldIndexMap;
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NSMapTable<id<NSObject>, NSNumber *> *_newIndexMap;
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}
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- (instancetype)initWithInserts:(NSIndexSet *)inserts
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deletes:(NSIndexSet *)deletes
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updates:(NSIndexSet *)updates
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moves:(NSArray<IGListMoveIndex *> *)moves
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oldIndexMap:(NSMapTable<id<NSObject>, NSNumber *> *)oldIndexMap
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newIndexMap:(NSMapTable<id<NSObject>, NSNumber *> *)newIndexMap {
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if (self = [super init]) {
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_inserts = inserts;
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_deletes = deletes;
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_updates = updates;
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_moves = moves;
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_oldIndexMap = oldIndexMap;
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_newIndexMap = newIndexMap;
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}
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return self;
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}
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- (BOOL)hasChanges {
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return self.changeCount > 0;
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}
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- (NSInteger)changeCount {
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return self.inserts.count + self.deletes.count + self.updates.count + self.moves.count;
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}
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- (IGListIndexSetResult *)resultForBatchUpdates {
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NSMutableIndexSet *deletes = [self.deletes mutableCopy];
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NSMutableIndexSet *inserts = [self.inserts mutableCopy];
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NSMutableIndexSet *filteredUpdates = [self.updates mutableCopy];
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NSArray<IGListMoveIndex *> *moves = self.moves;
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NSMutableArray<IGListMoveIndex *> *filteredMoves = [moves mutableCopy];
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// convert all update+move to delete+insert
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const NSInteger moveCount = moves.count;
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for (NSInteger i = moveCount - 1; i >= 0; i--) {
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IGListMoveIndex *move = moves[i];
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if ([filteredUpdates containsIndex:move.from]) {
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[filteredMoves removeObjectAtIndex:i];
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[filteredUpdates removeIndex:move.from];
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[deletes addIndex:move.from];
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[inserts addIndex:move.to];
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}
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}
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// iterate all new identifiers. if its index is updated, delete from the old index and insert the new index
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for (id<NSObject> key in [_oldIndexMap keyEnumerator]) {
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const NSInteger index = [[_oldIndexMap objectForKey:key] integerValue];
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if ([filteredUpdates containsIndex:index]) {
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[deletes addIndex:index];
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[inserts addIndex:[[_newIndexMap objectForKey:key] integerValue]];
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}
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}
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return [[IGListIndexSetResult alloc] initWithInserts:inserts
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deletes:deletes
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updates:[NSIndexSet new]
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moves:filteredMoves
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oldIndexMap:_oldIndexMap
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newIndexMap:_newIndexMap];
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}
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- (NSInteger)oldIndexForIdentifier:(id<NSObject>)identifier {
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NSNumber *index = [_oldIndexMap objectForKey:identifier];
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return index == nil ? NSNotFound : [index integerValue];
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}
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- (NSInteger)newIndexForIdentifier:(id<NSObject>)identifier {
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NSNumber *index = [_newIndexMap objectForKey:identifier];
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return index == nil ? NSNotFound : [index integerValue];
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}
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- (NSString *)description {
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return [NSString stringWithFormat:@"<%@ %p; %lu inserts; %lu deletes; %lu updates; %lu moves>",
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NSStringFromClass(self.class), self, (unsigned long)self.inserts.count, (unsigned long)self.deletes.count, (unsigned long)self.updates.count, (unsigned long)self.moves.count];
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}
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@end
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