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a7656766f9
* Make ASCellNode indexPath and supplementaryElementKind atomic * Update the change log * Fix licenses * Be explicit with atomic * Rename the protocol * And the file
84 lines
2.9 KiB
Objective-C
84 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 the specified cell node has done a relayout.
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* The notification is done on main thread.
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*
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* This will not be called due to measurement passes before the node has loaded
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* its view, even if triggered by -setNeedsLayout, as it is assumed these are
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* not relevant to UIKit. Indeed, these calls can cause consistency issues.
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*
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* @param node A node informing the delegate about the relayout.
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* @param sizeChanged `YES` if the node's `calculatedSize` changed during the relayout, `NO` otherwise.
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*/
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- (void)nodeDidRelayout:(ASCellNode *)node sizeChanged:(BOOL)sizeChanged;
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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, assign) BOOL shouldUseUIKitCell;
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@end
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NS_ASSUME_NONNULL_END
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