Add 'submodules/AsyncDisplayKit/' from commit '02bedc12816e251ad71777f9d2578329b6d2bef6'

git-subtree-dir: submodules/AsyncDisplayKit
git-subtree-mainline: d06f423e0e
git-subtree-split: 02bedc1281

submodules/AsyncDisplayKit/Source/ASCollectionNode+Beta.h

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+//
+//  ASCollectionNode+Beta.h
+//  Texture
+//
+//  Copyright (c) Facebook, Inc. and its affiliates.  All rights reserved.
+//  Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc.  All rights reserved.
+//  Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#ifndef MINIMAL_ASDK
+#import <AsyncDisplayKit/ASCollectionNode.h>
+
+@protocol ASCollectionViewLayoutFacilitatorProtocol, ASCollectionLayoutDelegate, ASBatchFetchingDelegate;
+@class ASElementMap;
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface ASCollectionNode (Beta)
+
+/**
+ * Allows providing a custom subclass of ASCollectionView to be managed by ASCollectionNode.
+ *
+ * @default [ASCollectionView class] is used whenever this property is unset or nil.
+ */
+@property (nullable, nonatomic) Class collectionViewClass;
+
+/**
+ * The elements that are currently displayed. The "UIKit index space". Must be accessed on main thread.
+ */
+@property (nonatomic, readonly) ASElementMap *visibleElements;
+
+@property (nullable, readonly) id<ASCollectionLayoutDelegate> layoutDelegate;
+
+@property (nullable, nonatomic, weak) id<ASBatchFetchingDelegate> batchFetchingDelegate;
+
+/**
+ * When this mode is enabled, ASCollectionView matches the timing of UICollectionView as closely as
+ * possible, ensuring that all reload and edit operations are performed on the main thread as
+ * blocking calls.
+ *
+ * This mode is useful for applications that are debugging issues with their collection view
+ * implementation. In particular, some applications do not properly conform to the API requirement
+ * of UICollectionView, and these applications may experience difficulties with ASCollectionView.
+ * Providing this mode allows for developers to work towards resolving technical debt in their
+ * collection view data source, while ramping up asynchronous collection layout.
+ *
+ * NOTE: Because this mode results in expensive operations like cell layout being performed on the
+ * main thread, it should be used as a tool to resolve data source conformance issues with Apple
+ * collection view API.
+ *
+ * @default defaults to ASCellLayoutModeNone.
+ */
+@property (nonatomic) ASCellLayoutMode cellLayoutMode;
+
+/**
+ *  Returns YES if the ASCollectionNode contents are completely synchronized with the underlying collection-view layout.
+ */
+@property (nonatomic, readonly, getter=isSynchronized) BOOL synchronized;
+
+/**
+ *  Schedules a block to be performed (on the main thread) as soon as the completion block is called
+ *  on performBatchUpdates:.
+ *
+ *  When isSynchronized == YES, the block is run block immediately (before the method returns).
+ */
+- (void)onDidFinishSynchronizing:(void (^)(void))didFinishSynchronizing;
+
+- (instancetype)initWithFrame:(CGRect)frame collectionViewLayout:(UICollectionViewLayout *)layout layoutFacilitator:(nullable id<ASCollectionViewLayoutFacilitatorProtocol>)layoutFacilitator;
+
+- (instancetype)initWithLayoutDelegate:(id<ASCollectionLayoutDelegate>)layoutDelegate layoutFacilitator:(nullable id<ASCollectionViewLayoutFacilitatorProtocol>)layoutFacilitator;
+
+- (void)beginUpdates ASDISPLAYNODE_DEPRECATED_MSG("Use -performBatchUpdates:completion: instead.");
+
+- (void)endUpdatesAnimated:(BOOL)animated ASDISPLAYNODE_DEPRECATED_MSG("Use -performBatchUpdates:completion: instead.");
+
+- (void)endUpdatesAnimated:(BOOL)animated completion:(nullable void (^)(BOOL))completion ASDISPLAYNODE_DEPRECATED_MSG("Use -performBatchUpdates:completion: instead.");
+
+@end
+
+NS_ASSUME_NONNULL_END
+
+#endif