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Code Issues Packages Projects Releases Wiki Activity

[ASDataController] Improve update handling

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This commit is contained in:
Adlai Holler
2016-06-23 16:57:09 -07:00
parent 71d9f64535
commit 35056f708b
10 changed files with 95 additions and 233 deletions
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48
AsyncDisplayKit/Details/ASCollectionDataController.mm
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@@ -115,30 +115,6 @@
}
}
- (void)prepareForReloadSections:(NSIndexSet *)sections
{
for (NSString *kind in [self supplementaryKinds]) {
NSMutableArray<ASIndexedNodeContext *> *contexts = [NSMutableArray array];
[self _populateSupplementaryNodesOfKind:kind withSections:sections mutableContexts:contexts];
_pendingContexts[kind] = contexts;
}
}
- (void)willReloadSections:(NSIndexSet *)sections
{
NSArray *keys = _pendingContexts.allKeys;
for (NSString *kind in keys) {
NSMutableArray<ASIndexedNodeContext *> *contexts = _pendingContexts[kind];
NSArray *indexPaths = ASIndexPathsForMultidimensionalArrayAtIndexSet([self editingNodesOfKind:kind], sections);
[self deleteNodesOfKind:kind atIndexPaths:indexPaths completion:nil];
// reinsert the elements
[self batchLayoutNodesFromContexts:contexts ofKind:kind completion:^(NSArray<ASCellNode *> *nodes, NSArray<NSIndexPath *> *indexPaths) {
[self insertNodes:nodes ofKind:kind atIndexPaths:indexPaths completion:nil];
}];
[_pendingContexts removeObjectForKey:kind];
}
}
- (void)willMoveSection:(NSInteger)section toSection:(NSInteger)newSection
{
for (NSString *kind in [self supplementaryKinds]) {
@@ -187,30 +163,6 @@
}
}
- (void)prepareForReloadRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths
{
for (NSString *kind in [self supplementaryKinds]) {
NSMutableArray<ASIndexedNodeContext *> *contexts = [NSMutableArray array];
[self _populateSupplementaryNodesOfKind:kind atIndexPaths:indexPaths mutableContexts:contexts];
_pendingContexts[kind] = contexts;
}
}
- (void)willReloadRowsAtIndexPaths:(NSArray<NSIndexPath *> *)indexPaths
{
NSArray *keys = _pendingContexts.allKeys;
for (NSString *kind in keys) {
NSMutableArray<ASIndexedNodeContext *> *contexts = _pendingContexts[kind];
[self deleteNodesOfKind:kind atIndexPaths:indexPaths completion:nil];
// reinsert the elements
[self batchLayoutNodesFromContexts:contexts ofKind:kind completion:^(NSArray<ASCellNode *> *nodes, NSArray<NSIndexPath *> *indexPaths) {
[self insertNodes:nodes ofKind:kind atIndexPaths:indexPaths completion:nil];
}];
[_pendingContexts removeObjectForKey:kind];
}
}
- (void)_populateSupplementaryNodesOfKind:(NSString *)kind withMutableContexts:(NSMutableArray<ASIndexedNodeContext *> *)contexts
{
id<ASEnvironment> environment = [self.environmentDelegate dataControllerEnvironment];