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

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

submodules/AsyncDisplayKit/Source/Details/ASCollectionViewLayoutInspector.h

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+//
+//  ASCollectionViewLayoutInspector.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 <Foundation/Foundation.h>
+#import <AsyncDisplayKit/ASDimension.h>
+#import <AsyncDisplayKit/ASScrollDirection.h>
+
+@class ASCollectionView;
+@protocol ASCollectionDataSource;
+@protocol ASCollectionDelegate;
+
+NS_ASSUME_NONNULL_BEGIN
+
+AS_EXTERN ASSizeRange NodeConstrainedSizeForScrollDirection(ASCollectionView *collectionView);
+
+@protocol ASCollectionViewLayoutInspecting <NSObject>
+
+/**
+ * Asks the inspector to provide a constrained size range for the given collection view node.
+ */
+- (ASSizeRange)collectionView:(ASCollectionView *)collectionView constrainedSizeForNodeAtIndexPath:(NSIndexPath *)indexPath;
+
+/**
+ * Return the directions in which your collection view can scroll
+ */
+- (ASScrollDirection)scrollableDirections;
+
+@optional
+
+/**
+ * Asks the inspector to provide a constrained size range for the given supplementary node.
+ */
+- (ASSizeRange)collectionView:(ASCollectionView *)collectionView constrainedSizeForSupplementaryNodeOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath;
+
+/**
+ * Asks the inspector for the number of supplementary views for the given kind in the specified section.
+ */
+- (NSUInteger)collectionView:(ASCollectionView *)collectionView supplementaryNodesOfKind:(NSString *)kind inSection:(NSUInteger)section;
+
+/**
+ * Allow the inspector to respond to delegate changes.
+ *
+ * @discussion A great time to update perform selector caches!
+ */
+- (void)didChangeCollectionViewDelegate:(nullable id<ASCollectionDelegate>)delegate;
+
+/**
+ * Allow the inspector to respond to dataSource changes.
+ *
+ * @discussion A great time to update perform selector caches!
+ */
+- (void)didChangeCollectionViewDataSource:(nullable id<ASCollectionDataSource>)dataSource;
+
+#pragma mark Deprecated Methods
+
+/**
+ * Asks the inspector for the number of supplementary sections in the collection view for the given kind.
+ *
+ * @deprecated This method will not be called, and it is only deprecated as a reminder to remove it.
+ * Supplementary elements must exist in the same sections as regular collection view items i.e. -numberOfSectionsInCollectionView:
+ */
+- (NSUInteger)collectionView:(ASCollectionView *)collectionView numberOfSectionsForSupplementaryNodeOfKind:(NSString *)kind ASDISPLAYNODE_DEPRECATED_MSG("Use ASCollectionNode's method instead.");
+
+@end
+
+/**
+ * A layout inspector for non-flow layouts that returns a constrained size to let the cells layout itself as
+ * far as possible based on the scrollable direction of the collection view.
+ * It doesn't support supplementary nodes and therefore doesn't implement delegate methods
+ * that are related to supplementary node's management.
+ *
+ * @warning This class is not meant to be subclassed and will be restricted in the future.
+ */
+@interface ASCollectionViewLayoutInspector : NSObject <ASCollectionViewLayoutInspecting>
+@end
+
+
+NS_ASSUME_NONNULL_END
+
+#endif