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c6e3dd7a5d
* [ASCollectionView] Fix index space translation of Flow Layout Delegate methods. This includes a few other cleanups, including overflow of signed integer indices. * [ASCollectionView] Improve code sharing of UIKit size method calls; ensure delegate invalidation re-fetches supplementary sizes too. * [ASCollectionView] Final method ordering and doc-comment for new _sizeForUIKitCellWithKind:atIndexPath: method.
75 lines
3.3 KiB
Objective-C
75 lines
3.3 KiB
Objective-C
//
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// ASCollectionNode+Beta.h
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// Texture
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
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// grant of patent rights can be found in the PATENTS file in the same directory.
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//
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// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
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// Pinterest, Inc. Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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#import <AsyncDisplayKit/ASCollectionNode.h>
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@protocol ASCollectionViewLayoutFacilitatorProtocol, ASCollectionLayoutDelegate, ASBatchFetchingDelegate;
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@class ASElementMap;
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NS_ASSUME_NONNULL_BEGIN
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@interface ASCollectionNode (Beta)
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/**
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* Allows providing a custom subclass of ASCollectionView to be managed by ASCollectionNode.
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*
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* @default [ASCollectionView class] is used whenever this property is unset or nil.
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*/
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@property (strong, nonatomic, nullable) Class collectionViewClass;
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/**
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* The elements that are currently displayed. The "UIKit index space". Must be accessed on main thread.
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*/
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@property (strong, nonatomic, readonly) ASElementMap *visibleElements;
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@property (strong, readonly, nullable) id<ASCollectionLayoutDelegate> layoutDelegate;
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@property (nonatomic, weak) id<ASBatchFetchingDelegate> batchFetchingDelegate;
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/**
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* When this mode is enabled, ASCollectionView matches the timing of UICollectionView as closely as possible,
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* ensuring that all reload and edit operations are performed on the main thread as blocking calls.
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*
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* This mode is useful for applications that are debugging issues with their collection view implementation.
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* In particular, some applications do not properly conform to the API requirement of UICollectionView, and these
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* applications may experience difficulties with ASCollectionView. Providing this mode allows for developers to
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* work towards resolving technical debt in their collection view data source, while ramping up asynchronous
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* collection layout.
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*
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* NOTE: Because this mode results in expensive operations like cell layout being performed on the main thread,
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* it should be used as a tool to resolve data source conformance issues with Apple collection view API.
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*
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* @default defaults to NO.
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*/
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@property (nonatomic, assign) BOOL usesSynchronousDataLoading;
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- (instancetype)initWithFrame:(CGRect)frame collectionViewLayout:(UICollectionViewLayout *)layout layoutFacilitator:(nullable id<ASCollectionViewLayoutFacilitatorProtocol>)layoutFacilitator;
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- (instancetype)initWithLayoutDelegate:(id<ASCollectionLayoutDelegate>)layoutDelegate layoutFacilitator:(nullable id<ASCollectionViewLayoutFacilitatorProtocol>)layoutFacilitator;
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- (void)beginUpdates ASDISPLAYNODE_DEPRECATED_MSG("Use -performBatchUpdates:completion: instead.");
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- (void)endUpdatesAnimated:(BOOL)animated ASDISPLAYNODE_DEPRECATED_MSG("Use -performBatchUpdates:completion: instead.");
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- (void)endUpdatesAnimated:(BOOL)animated completion:(nullable void (^)(BOOL))completion ASDISPLAYNODE_DEPRECATED_MSG("Use -performBatchUpdates:completion: instead.");
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- (void)invalidateFlowLayoutDelegateMetrics;
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@end
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NS_ASSUME_NONNULL_END
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