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a41cbb48b3
* - [ASWrapperCellNode] Introduce a new class allowing more control of UIKit passthrough cells. A few minor fixes to Collections behavior as well, including a new isSynchronized API. The difference from processingUpdates is that after Synchronized, all animations have also completed (or runloop turn if animations disabled, so .collectionViewLayout can be relied on being fully in sync). More upstreaming to come after this can land... * Fix -[ASDataController clearData] to take no action before initial data loading. * Empty commit to kick CI * Spacing change to kick CI (since an empty commit doesn't work...) * Tweak ASDataController changes to handle an edge case in _editingTransactionQueueCount management. * Avoid excess cyclic calls to onDidFinishProcessingUpdates: by avoiding ASMainSerialQueue. * Reverting my initial change as it wasn't the right approach, following the real fix before this.
85 lines
2.9 KiB
Objective-C
85 lines
2.9 KiB
Objective-C
//
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// ASCellNode+Internal.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/ASCellNode.h>
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NS_ASSUME_NONNULL_BEGIN
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@class ASCollectionElement;
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@protocol ASCellNodeInteractionDelegate <NSObject>
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/**
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* Notifies the delegate that a specified cell node invalidates it's size what could result into a size change.
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*
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* @param node A node informing the delegate about the relayout.
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*/
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- (void)nodeDidInvalidateSize:(ASCellNode *)node;
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/*
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* Methods to be called whenever the selection or highlight state changes
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* on ASCellNode. UIKit internally stores these values to update reusable cells.
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*/
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- (void)nodeSelectedStateDidChange:(ASCellNode *)node;
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- (void)nodeHighlightedStateDidChange:(ASCellNode *)node;
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@end
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@interface ASCellNode ()
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@property (nonatomic, weak) id <ASCellNodeInteractionDelegate> interactionDelegate;
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/*
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* Back-pointer to the containing scrollView instance, set only for visible cells. Used for Cell Visibility Event callbacks.
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*/
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@property (nonatomic, weak) UIScrollView *scrollView;
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- (void)__setSelectedFromUIKit:(BOOL)selected;
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- (void)__setHighlightedFromUIKit:(BOOL)highlighted;
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/**
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* @note This could be declared @c copy, but since this is only settable internally, we can ensure
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* that it's always safe simply to retain it, and copy if needed. Since @c UICollectionViewLayoutAttributes
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* is always mutable, @c copy is never "free" like it is for e.g. NSString.
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*/
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@property (nonatomic, strong, nullable) UICollectionViewLayoutAttributes *layoutAttributes;
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@property (atomic, weak, nullable) ASCollectionElement *collectionElement;
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@property (atomic, weak, nullable) id<ASRangeManagingNode> owningNode;
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@property (nonatomic, readonly) BOOL shouldUseUIKitCell;
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@end
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@class ASWrapperCellNode;
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typedef CGSize (^ASSizeForItemBlock)(ASWrapperCellNode *node, CGSize collectionSize);
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typedef UICollectionViewCell * _Nonnull(^ASCellForItemBlock)(ASWrapperCellNode *node);
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typedef UICollectionReusableView * _Nonnull(^ASViewForSupplementaryBlock)(ASWrapperCellNode *node);
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@interface ASWrapperCellNode : ASCellNode
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@property (nonatomic, copy, readonly) ASSizeForItemBlock sizeForItemBlock;
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@property (nonatomic, copy, readonly) ASCellForItemBlock cellForItemBlock;
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@property (nonatomic, copy, readonly) ASViewForSupplementaryBlock viewForSupplementaryBlock;
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@end
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NS_ASSUME_NONNULL_END
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