Swiftgram/Source/Details/_ASCollectionViewCell.m
2017-02-26 18:14:13 -08:00

75 lines
1.9 KiB
Objective-C

//
// _ASCollectionViewCell.m
// AsyncDisplayKit
//
// Created by Adlai Holler on 1/30/17.
// Copyright © 2017 Facebook. All rights reserved.
//
#import "_ASCollectionViewCell.h"
#import "ASCellNode+Internal.h"
#import <AsyncDisplayKit/AsyncDisplayKit.h>
@implementation _ASCollectionViewCell
- (void)setNode:(ASCellNode *)node
{
ASDisplayNodeAssertMainThread();
node.layoutAttributes = _layoutAttributes;
_node = node;
self.backgroundColor = node.backgroundColor;
self.clipsToBounds = node.clipsToBounds;
[node __setSelectedFromUIKit:self.selected];
[node __setHighlightedFromUIKit:self.highlighted];
}
- (void)setSelected:(BOOL)selected
{
[super setSelected:selected];
[_node __setSelectedFromUIKit:selected];
}
- (void)setHighlighted:(BOOL)highlighted
{
[super setHighlighted:highlighted];
[_node __setHighlightedFromUIKit:highlighted];
}
- (void)setLayoutAttributes:(UICollectionViewLayoutAttributes *)layoutAttributes
{
_layoutAttributes = layoutAttributes;
_node.layoutAttributes = layoutAttributes;
}
- (void)prepareForReuse
{
self.layoutAttributes = nil;
// Need to clear node pointer before UIKit calls setSelected:NO / setHighlighted:NO on its cells
self.node = nil;
[super prepareForReuse];
}
/**
* In the initial case, this is called by UICollectionView during cell dequeueing, before
* we get a chance to assign a node to it, so we must be sure to set these layout attributes
* on our node when one is next assigned to us in @c setNode: . Since there may be cases when we _do_ already
* have our node assigned e.g. during a layout update for existing cells, we also attempt
* to update it now.
*/
- (void)applyLayoutAttributes:(UICollectionViewLayoutAttributes *)layoutAttributes
{
self.layoutAttributes = layoutAttributes;
}
/**
* Keep our node filling our content view.
*/
- (void)layoutSubviews
{
[super layoutSubviews];
self.node.frame = self.contentView.bounds;
}
@end