WIP Thin embedding

2026-04-07 19:17:39 +00:00 · 2018-09-24 07:35:30 -07:00
parent 5dd5611c2c
commit 44bcb1c236
55 changed files with 10433 additions and 32 deletions
@@ -0,0 +1,89 @@
+//
+//  ASCollectionViewHelper.h
+//  Sample
+//
+//  Created by Adlai Holler on 9/7/18.
+//  Copyright © 2018 Facebook. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+#import <AsyncDisplayKit/AsyncDisplayKit.h>
+NS_ASSUME_NONNULL_BEGIN
+
+@class ASCollectionViewHelper;
+
+@protocol ASCollectionViewHelperDataSource <NSObject>
+
+/// always called on main.
+- (nullable id)collectionViewHelper:(ASCollectionViewHelper *)helper
+           objectForItemAtIndexPath:(NSIndexPath *)path;
+
+- (nullable id)collectionViewHelper:(ASCollectionViewHelper *)helper
+ objectForSupplementaryElementOfKind:(NSString *)elementKind
+                         atIndexPath:(NSIndexPath *)indexPath;
+@end
+
+
+@interface ASCollectionViewHelper : NSObject
+
+/**
+ * Note: Data source is expected to deallocate on the main thread.
+ * The collection view's layout must conform to ASCompatibleCollectionViewLayout.
+ */
+- (instancetype)initWithCollectionView:(UICollectionView *)collectionView
+                            dataSource:(id<ASCollectionViewHelperDataSource>)dataSource NS_DESIGNATED_INITIALIZER;
+
+- (instancetype)initWithTableView:(UITableView *)tableView
+                       dataSource:(id<ASCollectionViewHelperDataSource>)dataSource NS_DESIGNATED_INITIALIZER;
+
+#pragma mark - Output
+
+#pragma mark - Table View
+
+- (CGFloat)heightForRowAtIndexPath:(NSIndexPath *)indexPath;
+- (CGFloat)heightForHeaderInSection:(NSInteger)section;
+- (CGFloat)heightForFooterInSection:(NSInteger)section;
+
+/// our implementation of the data source method.
+/// returns nil if this cell is not a node.
+- (nullable UITableViewCell *)tableView:(UITableView *)tableView
+                  cellForRowAtIndexPath:(NSIndexPath *)indexPath;
+
+- (nullable UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section;
+- (nullable UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section;
+
+#pragma mark - Collection View
+
+/**
+ * Requests the size for the given item.
+ * NOTE: You should not call this method except from -collectionView:layout:sizeForItemAtIndexPath:
+ * or some other point driven by the UICollectionViewLayout.
+ *
+ * Calls to this method outside of UICollectionViewLayout's preparation process result in undefined behavior.
+ */
+- (CGSize)sizeForItemAtIndexPath:(NSIndexPath *)indexPath;
+
+- (CGSize)flowLayoutReferenceSizeForHeaderInSection:(NSInteger)section;
+- (CGSize)flowLayoutReferenceSizeForFooterInSection:(NSInteger)section;
+
+/// Generic supplementary sizing method.
+- (CGSize)sizeForSupplementaryElementOfKind:(NSString *)elementKind
+                                atIndexPath:(NSIndexPath *)indexPath;
+
+/// our implementation of the data source method.
+/// returns nil if this cell is not a node.
+- (nullable UICollectionViewCell *)collectionView:(UICollectionView *)collectionView
+                           cellForItemAtIndexPath:(NSIndexPath *)indexPath;
+
+- (nullable UICollectionReusableView *)collectionView:(UICollectionView *)collectionView
+                    viewForSupplementaryElementOfKind:(NSString *)kind
+                                          atIndexPath:(NSIndexPath *)indexPath;
+
+#pragma mark - Unavailable
+
+- (instancetype)init NS_UNAVAILABLE;
+
+@end
+
+NS_ASSUME_NONNULL_END