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Further implement data controller support and layout introspection

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This commit is contained in:
Levi McCallum
2015-09-29 08:59:40 -07:00
committed by Levi McCallum
parent 658b78d552
commit da7a2a5d48
9 changed files with 121 additions and 20 deletions
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18
AsyncDisplayKit/Details/ASCollectionDataController.mm
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@@ -14,6 +14,12 @@
#import "ASDisplayNodeInternal.h"
#import "ASDataController+Subclasses.h"
@interface ASCollectionDataController ()
- (id<ASCollectionDataControllerSource>)collectionDataSource;
@end
@implementation ASCollectionDataController {
NSMutableDictionary *_completedSupplementaryNodes;
NSMutableDictionary *_editingSupplementaryNodes;
@@ -24,21 +30,23 @@
[self performEditCommandWithBlock:^{
ASDisplayNodeAssertMainThread();
[self accessDataSourceWithBlock:^{
NSArray *elementKinds = [self.collectionDataSource supplementaryKindsInDataController:self];
NSArray *elementKinds = [self.collectionDataSource supplementaryNodeKindsInDataController:self];
[elementKinds enumerateObjectsUsingBlock:^(NSString *kind, NSUInteger idx, BOOL * _Nonnull stop) {
_completedSupplementaryNodes[kind] = [NSMutableArray array];
_editingSupplementaryNodes[kind] = [NSMutableArray array];
NSMutableArray *indexPaths = [NSMutableArray array];
NSMutableArray *nodes = [NSMutableArray array];
[self _populateAllNodesOfKind:kind withMutableNodes:nodes mutableIndexPaths:indexPaths];
[self batchLayoutNodes:nodes atIndexPaths:indexPaths completion:nil];
[self _populateSupplementaryNodesOfKind:kind withMutableNodes:nodes mutableIndexPaths:indexPaths];
[self batchLayoutNodes:nodes atIndexPaths:indexPaths constrainedSize:^ASSizeRange(NSIndexPath *indexPath) {
return [self.collectionDataSource dataController:self constrainedSizeForSupplementaryNodeOfKind:kind atIndexPath:indexPath];
} completion:nil];
}];
}];
}];
}
- (void)_populateAllNodesOfKind:(NSString *)kind withMutableNodes:(NSMutableArray *)nodes mutableIndexPaths:(NSMutableArray *)indexPaths
- (void)_populateSupplementaryNodesOfKind:(NSString *)kind withMutableNodes:(NSMutableArray *)nodes mutableIndexPaths:(NSMutableArray *)indexPaths
{
NSUInteger sectionCount = [self.collectionDataSource dataController:self numberOfSectionsForSupplementaryKind:kind];
for (NSUInteger i = 0; i < sectionCount; i++) {
@@ -65,6 +73,7 @@
#pragma mark - Internal Data Querying
// TODO: Reduce code duplication by exposing generic insert/delete helpers from ASDataController
- (void)_insertNodes:(NSArray *)nodes ofKind:(NSString *)kind atIndexPaths:(NSArray *)indexPaths
{
if (indexPaths.count == 0)
@@ -78,6 +87,7 @@
});
}
// TODO: Reduce code duplication by exposing generic insert/delete helpers from ASDataController
- (void)_deleteNodesOfKind:(NSString *)kind atIndexPaths:(NSArray *)indexPaths
{
if (indexPaths.count == 0)