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[ASWrapperCellNode] Introduce a new class allowing more control of UIKit passthrough cells. (#797)

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* - [ASWrapperCellNode] Introduce a new class allowing more control of UIKit passthrough cells.

A few minor fixes to Collections behavior as well, including a new isSynchronized
API. The difference from processingUpdates is that after Synchronized, all animations
have also completed (or runloop turn if animations disabled, so .collectionViewLayout
can be relied on being fully in sync).

More upstreaming to come after this can land...

* Fix -[ASDataController clearData] to take no action before initial data loading.

* Empty commit to kick CI

* Spacing change to kick CI (since an empty commit doesn't work...)

* Tweak ASDataController changes to handle an edge case in _editingTransactionQueueCount management.

* Avoid excess cyclic calls to onDidFinishProcessingUpdates: by avoiding ASMainSerialQueue.

* Reverting my initial change as it wasn't the right approach, following the real fix before this.
This commit is contained in:
appleguy
2018-03-13 01:03:18 -07:00
committed by GitHub
parent 5cafdb9062
commit a41cbb48b3
15 changed files with 415 additions and 105 deletions
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16
Source/Private/ASCellNode+Internal.h
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@@ -63,7 +63,21 @@ NS_ASSUME_NONNULL_BEGIN
@property (atomic, weak, nullable) id<ASRangeManagingNode> owningNode;
@property (nonatomic, assign) BOOL shouldUseUIKitCell;
@property (nonatomic, readonly) BOOL shouldUseUIKitCell;
@end
@class ASWrapperCellNode;
typedef CGSize (^ASSizeForItemBlock)(ASWrapperCellNode *node, CGSize collectionSize);
typedef UICollectionViewCell * _Nonnull(^ASCellForItemBlock)(ASWrapperCellNode *node);
typedef UICollectionReusableView * _Nonnull(^ASViewForSupplementaryBlock)(ASWrapperCellNode *node);
@interface ASWrapperCellNode : ASCellNode
@property (nonatomic, copy, readonly) ASSizeForItemBlock sizeForItemBlock;
@property (nonatomic, copy, readonly) ASCellForItemBlock cellForItemBlock;
@property (nonatomic, copy, readonly) ASViewForSupplementaryBlock viewForSupplementaryBlock;
@end