mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-06 15:08:50 +00:00
23bcc5c7c0
Summary: * IGListCollectionView passes update information to IGListCollectionViewLayout. Reviewed By: rnystrom Differential Revision: D6510139 fbshipit-source-id: ada194d009eca7f308887ec592ecc41fb9557855
106 lines
3 KiB
Objective-C
106 lines
3 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 "IGListCollectionView.h"
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#import "IGListCollectionViewLayout.h"
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@implementation IGListCollectionView
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#pragma mark - Init
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- (instancetype)initWithFrame:(CGRect)frame {
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IGListCollectionViewLayout *layout = [[IGListCollectionViewLayout alloc] initWithStickyHeaders:NO topContentInset:0 stretchToEdge:YES];
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return [self initWithFrame:frame listCollectionViewLayout:layout];
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}
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- (instancetype)initWithFrame:(CGRect)frame listCollectionViewLayout:(IGListCollectionViewLayout *)collectionViewLayout {
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return [super initWithFrame:frame collectionViewLayout:collectionViewLayout];
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}
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#pragma mark - IGListCollectionViewLayout
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- (IGListCollectionViewLayout *)listLayout {
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if ([self.collectionViewLayout isKindOfClass:[IGListCollectionViewLayout class]]) {
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return (IGListCollectionViewLayout *)self.collectionViewLayout;
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}
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return nil;
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}
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#pragma mark - Overides reloads
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- (void)reloadItemsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths {
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[self didModifyIndexPaths:indexPaths];
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[super reloadItemsAtIndexPaths:indexPaths];
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}
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- (void)reloadSections:(NSIndexSet *)sections {
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[self didModifySections:sections];
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[super reloadSections:sections];
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}
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#pragma mark - Override deletes
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- (void)deleteItemsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths {
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[self didModifyIndexPaths:indexPaths];
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[super deleteItemsAtIndexPaths:indexPaths];
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}
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- (void)deleteSections:(NSIndexSet *)sections {
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[self didModifySections:sections];
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[super deleteSections:sections];
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}
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#pragma mark - Override inserts
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- (void)insertItemsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths {
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[self didModifyIndexPaths:indexPaths];
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[super insertItemsAtIndexPaths:indexPaths];
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}
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- (void)insertSections:(NSIndexSet *)sections {
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[self didModifySections:sections];
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[super insertSections:sections];
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}
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#pragma mark - Override moves
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- (void)moveItemAtIndexPath:(NSIndexPath *)indexPath toIndexPath:(NSIndexPath *)newIndexPath {
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[self didModifyIndexPaths:@[indexPath, newIndexPath]];
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[super moveItemAtIndexPath:indexPath toIndexPath:newIndexPath];
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}
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- (void)moveSection:(NSInteger)section toSection:(NSInteger)newSection {
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[self didModifySection:MIN(section, newSection)];
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[super moveSection:section toSection:newSection];
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}
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#pragma mark - Modify section
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- (void)didModifySections:(NSIndexSet *)sections {
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if (sections.count == 0) {
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return;
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}
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[self didModifySection:sections.firstIndex];
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}
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- (void)didModifySection:(NSUInteger)section {
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[self.listLayout didModifySection:section];
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}
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#pragma mark - Modified index path
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- (void)didModifyIndexPaths:(NSArray<NSIndexPath *> *)indexPaths {
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for (NSIndexPath *indexPath in indexPaths) {
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[self didModifySection:indexPath.section];
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}
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}
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@end
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