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

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

submodules/AsyncDisplayKit/Source/ASSupplementaryNodeSource.h

@@ -0,0 +1,55 @@
+//
+//  ASSupplementaryNodeSource.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/ASBlockTypes.h>
+#import <AsyncDisplayKit/ASDimension.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+@protocol ASSupplementaryNodeSource <NSObject>
+
+@optional
+
+/**
+ * A method to provide the node-block for the supplementary element.
+ *
+ * @param elementKind The kind of supplementary element.
+ * @param index The index of the item.
+ * @return A node block for the supplementary element.
+ * @see collectionNode:nodeForSupplementaryElementOfKind:atIndexPath:
+ */
+- (ASCellNodeBlock)nodeBlockForSupplementaryElementOfKind:(NSString *)elementKind atIndex:(NSInteger)index;
+
+/**
+ * Asks the controller to provide a node to display for the given supplementary element.
+ *
+ * @param kind The kind of supplementary element.
+ * @param index The index of the item.
+ */
+- (ASCellNode *)nodeForSupplementaryElementOfKind:(NSString *)kind atIndex:(NSInteger)index;
+
+/**
+ * A method to provide the size range used for measuring the supplementary
+ * element of the given kind at the given index.
+ *
+ * @param elementKind The kind of supplementary element.
+ * @param index The index of the item.
+ * @return A size range used for asynchronously measuring the node.
+ * @see collectionNode:constrainedSizeForSupplementaryElementOfKind:atIndexPath:
+ */
+- (ASSizeRange)sizeRangeForSupplementaryElementOfKind:(NSString *)elementKind atIndex:(NSInteger)index;
+
+@end
+
+NS_ASSUME_NONNULL_END
+
+#endif