#import "ASCellNode.h"

#import "ASInternalHelpers.h"

#import <AsyncDisplayKit/_ASDisplayView.h>

#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>

#import <AsyncDisplayKit/ASTextNode.h>

#import <AsyncDisplayKit/ASInsetLayoutSpec.h>

#pragma mark -

#pragma mark ASCellNode

@implementation ASCellNode

- (instancetype)init

{

if (!(self = [super init]))

return nil;

// Use UITableViewCell defaults

_selectionStyle = UITableViewCellSelectionStyleDefault;

self.clipsToBounds = YES;

return self;

}

- (instancetype)initWithLayerBlock:(ASDisplayNodeLayerBlock)viewBlock didLoadBlock:(ASDisplayNodeDidLoadBlock)didLoadBlock

{

ASDisplayNodeAssertNotSupported();

return nil;

}

- (instancetype)initWithViewBlock:(ASDisplayNodeViewBlock)viewBlock didLoadBlock:(ASDisplayNodeDidLoadBlock)didLoadBlock

{

ASDisplayNodeAssertNotSupported();

return nil;

}

- (void)setLayerBacked:(BOOL)layerBacked

{

// ASRangeController expects ASCellNodes to be view-backed. (Layer-backing is supported on ASCellNode subnodes.)

ASDisplayNodeAssert(!layerBacked, @"ASCellNode does not support layer-backing.");

}

- (void)setNeedsLayout

{

ASDisplayNodeAssertThreadAffinity(self);

CGSize oldSize = self.calculatedSize;

[super setNeedsLayout];

if (_layoutDelegate != nil) {

BOOL sizeChanged = !CGSizeEqualToSize(oldSize, self.calculatedSize);

ASPerformBlockOnMainThread(^{

[_layoutDelegate nodeDidRelayout:self sizeChanged:sizeChanged];

});

}

}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

ASDisplayNodeAssertMainThread();

ASDisplayNodeAssert([self.view isKindOfClass:_ASDisplayView.class], @"ASCellNode views must be of type _ASDisplayView");

[(_ASDisplayView *)self.view __forwardTouchesBegan:touches withEvent:event];

}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event

{

ASDisplayNodeAssertMainThread();

ASDisplayNodeAssert([self.view isKindOfClass:_ASDisplayView.class], @"ASCellNode views must be of type _ASDisplayView");

[(_ASDisplayView *)self.view __forwardTouchesMoved:touches withEvent:event];

}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event

{

ASDisplayNodeAssertMainThread();

ASDisplayNodeAssert([self.view isKindOfClass:_ASDisplayView.class], @"ASCellNode views must be of type _ASDisplayView");

[(_ASDisplayView *)self.view __forwardTouchesEnded:touches withEvent:event];

}

- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event

{

ASDisplayNodeAssertMainThread();

ASDisplayNodeAssert([self.view isKindOfClass:_ASDisplayView.class], @"ASCellNode views must be of type _ASDisplayView");

[(_ASDisplayView *)self.view __forwardTouchesCancelled:touches withEvent:event];

}

#pragma mark -

#pragma mark ASTextCellNode

@interface ASTextCellNode () {

NSString *_text;

ASTextNode *_textNode;

}

@implementation ASTextCellNode

static const CGFloat kFontSize = 18.0f;

- (instancetype)init

{

if (!(self = [super init]))

return nil;

_textNode = [[ASTextNode alloc] init];

[self addSubnode:_textNode];

return self;

}

- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize

{

static const CGFloat kHorizontalPadding = 15.0f;

static const CGFloat kVerticalPadding = 11.0f;

UIEdgeInsets insets = UIEdgeInsetsMake(kVerticalPadding, kHorizontalPadding, kVerticalPadding, kHorizontalPadding);

return [ASInsetLayoutSpec insetLayoutSpecWithInsets:insets child:_textNode];

}

- (void)setText:(NSString *)text

{

if (_text == text)

return;

_text = [text copy];

_textNode.attributedString = [[NSAttributedString alloc] initWithString:_text

attributes:@{NSFontAttributeName: [UIFont systemFontOfSize:kFontSize]}];

[self setNeedsLayout];

}