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Integrate new layout nodes to the framework.

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- Introduce ASLayoutNode and its subclasses.
- ASDisplayNode measures its ASLayoutNode and cache the result (ASLayout). Calculated size and position of each subnode can be retrieved from the calculated layout.
- Custom nodes need to override -layoutNodeThatFits:(CGSize) instead of -calculateSizeThatFits:(CGSize).
- Custom nodes do not need to layout its subnodes (in -layout:) anymore. ASDisplayNode can handle the job most of the time, by walking through its layout tree.
- ASCompositeNode is used to embed (display) subnodes to a node's layout. That way, each subnode will also be measured while the parent node is measuring. And the parent node knows where its subnodes are within its layout.
This commit is contained in:
Huy Nguyen 2015-05-28 20:36:55 +03:00
parent f8531f467d
commit abe98d5b09
13 changed files with 315 additions and 119 deletions
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1
AsyncDisplayKit.podspec
View File

@ -12,6 +12,7 @@ Pod::Spec.new do |spec|
spec.public_header_files = [
'AsyncDisplayKit/*.h',
'AsyncDisplayKit/Details/**/*.h',
'AsyncDisplayKit/Layout/*.h',
'Base/*.h'
]

162
AsyncDisplayKit.xcodeproj/project.pbxproj
View File

@ -26,7 +26,6 @@
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ACF6ED171B17843500DA7C62 /* ASStackLayoutNode.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ASStackLayoutNode.mm; path = AsyncDisplayKit/Layout/ASStackLayoutNode.mm; sourceTree = "<group>"; };
ACF6ED181B17843500DA7C62 /* ASStaticLayoutNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = ASStaticLayoutNode.h; path = AsyncDisplayKit/Layout/ASStaticLayoutNode.h; sourceTree = "<group>"; };
ACF6ED191B17843500DA7C62 /* ASStaticLayoutNode.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = ASStaticLayoutNode.mm; path = AsyncDisplayKit/Layout/ASStaticLayoutNode.mm; sourceTree = "<group>"; };
ACF6ED431B17847A00DA7C62 /* ASInternalHelpers.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASInternalHelpers.h; sourceTree = "<group>"; };
ACF6ED441B17847A00DA7C62 /* ASInternalHelpers.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ASInternalHelpers.mm; sourceTree = "<group>"; };
ACF6ED451B17847A00DA7C62 /* ASLayoutNodeUtilities.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASLayoutNodeUtilities.h; sourceTree = "<group>"; };
ACF6ED461B17847A00DA7C62 /* ASStackLayoutNodeUtilities.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASStackLayoutNodeUtilities.h; sourceTree = "<group>"; };
ACF6ED471B17847A00DA7C62 /* ASStackPositionedLayout.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASStackPositionedLayout.h; sourceTree = "<group>"; };
ACF6ED481B17847A00DA7C62 /* ASStackPositionedLayout.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ASStackPositionedLayout.mm; sourceTree = "<group>"; };
ACF6ED491B17847A00DA7C62 /* ASStackUnpositionedLayout.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASStackUnpositionedLayout.h; sourceTree = "<group>"; };
ACF6ED4A1B17847A00DA7C62 /* ASStackUnpositionedLayout.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ASStackUnpositionedLayout.mm; sourceTree = "<group>"; };
D3779BCFF841AD3EB56537ED /* Pods-AsyncDisplayKitTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-AsyncDisplayKitTests.release.xcconfig"; path = "Pods/Target Support Files/Pods-AsyncDisplayKitTests/Pods-AsyncDisplayKitTests.release.xcconfig"; sourceTree = "<group>"; };
D785F6601A74327E00291744 /* ASScrollNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASScrollNode.h; sourceTree = "<group>"; };
D785F6611A74327E00291744 /* ASScrollNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASScrollNode.m; sourceTree = "<group>"; };
@ -599,7 +664,7 @@
isa = PBXGroup;
children = (
055F1A3A19ABD43F004DAFF1 /* ASCellNode.h */,
055F1A3B19ABD43F004DAFF1 /* ASCellNode.m */,
AC6456071B0A335000CF11B8 /* ASCellNode.mm */,
AC3C4A4F1A1139C100143C57 /* ASCollectionView.h */,
AC3C4A501A1139C100143C57 /* ASCollectionView.mm */,
AC3C4A531A113EEC00143C57 /* ASCollectionViewProtocols.h */,
@ -629,6 +694,7 @@
6BDC61F51978FEA400E50D21 /* AsyncDisplayKit.h */,
058D09E1195D050800B7D73C /* Details */,
058D0A01195D050800B7D73C /* Private */,
AC6456051B0A333200CF11B8 /* Layout */,
058D09B2195D04C000B7D73C /* Supporting Files */,
);
path = AsyncDisplayKit;
@ -781,6 +847,14 @@
058D0A0E195D050800B7D73C /* ASImageNode+CGExtras.m */,
058D0A10195D050800B7D73C /* ASSentinel.h */,
058D0A11195D050800B7D73C /* ASSentinel.m */,
ACF6ED431B17847A00DA7C62 /* ASInternalHelpers.h */,
ACF6ED441B17847A00DA7C62 /* ASInternalHelpers.mm */,
ACF6ED451B17847A00DA7C62 /* ASLayoutNodeUtilities.h */,
ACF6ED461B17847A00DA7C62 /* ASStackLayoutNodeUtilities.h */,
ACF6ED471B17847A00DA7C62 /* ASStackPositionedLayout.h */,
ACF6ED481B17847A00DA7C62 /* ASStackPositionedLayout.mm */,
ACF6ED491B17847A00DA7C62 /* ASStackUnpositionedLayout.h */,
ACF6ED4A1B17847A00DA7C62 /* ASStackUnpositionedLayout.mm */,
);
path = Private;
sourceTree = "<group>";
@ -814,6 +888,39 @@
B35061DD1B010EDF0018CF92 /* Info.plist */,
);
name = "Supporting Files";
sourceTree = "<group>";
};
AC6456051B0A333200CF11B8 /* Layout */ = {
isa = PBXGroup;
children = (
ACF6ED011B17843500DA7C62 /* ASBackgroundLayoutNode.h */,
ACF6ED021B17843500DA7C62 /* ASBackgroundLayoutNode.mm */,
ACF6ED031B17843500DA7C62 /* ASCenterLayoutNode.h */,
ACF6ED041B17843500DA7C62 /* ASCenterLayoutNode.mm */,
ACF6ED051B17843500DA7C62 /* ASCompositeNode.h */,
ACF6ED061B17843500DA7C62 /* ASCompositeNode.mm */,
ACF6ED071B17843500DA7C62 /* ASDimension.h */,
ACF6ED081B17843500DA7C62 /* ASDimension.mm */,
ACF6ED091B17843500DA7C62 /* ASInsetLayoutNode.h */,
ACF6ED0A1B17843500DA7C62 /* ASInsetLayoutNode.mm */,
ACF6ED0B1B17843500DA7C62 /* ASLayout.h */,
ACF6ED0C1B17843500DA7C62 /* ASLayout.mm */,
ACF6ED0D1B17843500DA7C62 /* ASLayoutNode.h */,
ACF6ED0E1B17843500DA7C62 /* ASLayoutNode.mm */,
ACF6ED0F1B17843500DA7C62 /* ASLayoutNodeSize.h */,
ACF6ED101B17843500DA7C62 /* ASLayoutNodeSize.mm */,
ACF6ED111B17843500DA7C62 /* ASLayoutNodeSubclass.h */,
ACF6ED121B17843500DA7C62 /* ASOverlayLayoutNode.h */,
ACF6ED131B17843500DA7C62 /* ASOverlayLayoutNode.mm */,
ACF6ED141B17843500DA7C62 /* ASRatioLayoutNode.h */,
ACF6ED151B17843500DA7C62 /* ASRatioLayoutNode.mm */,
ACF6ED161B17843500DA7C62 /* ASStackLayoutNode.h */,
ACF6ED171B17843500DA7C62 /* ASStackLayoutNode.mm */,
ACF6ED181B17843500DA7C62 /* ASStaticLayoutNode.h */,
ACF6ED191B17843500DA7C62 /* ASStaticLayoutNode.mm */,
);
name = Layout;
path = ..;
sourceTree = "<group>";
};
FD40E2760492F0CAAEAD552D /* Pods */ = {
@ -834,6 +941,7 @@
files = (
291B63FB1AA53A7A000A71B3 /* ASScrollDirection.h in Headers */,
464052221A3F83C40061C0BA /* ASFlowLayoutController.h in Headers */,
ACF6ED1A1B17843500DA7C62 /* ASBackgroundLayoutNode.h in Headers */,
464052241A3F83C40061C0BA /* ASLayoutController.h in Headers */,
464052201A3F83C40061C0BA /* ASDataController.h in Headers */,
05A6D05A19D0EB64002DD95E /* ASDealloc2MainObject.h in Headers */,
@ -844,9 +952,12 @@
058D0A4A195D05CB00B7D73C /* ASDisplayNode.h in Headers */,
1950C4491A3BB5C1005C8279 /* ASEqualityHelpers.h in Headers */,
058D0A4B195D05CB00B7D73C /* ASDisplayNode.mm in Headers */,
ACF6ED4B1B17847A00DA7C62 /* ASInternalHelpers.h in Headers */,
ACF6ED281B17843500DA7C62 /* ASLayoutNodeSize.h in Headers */,
058D0A4C195D05CB00B7D73C /* ASDisplayNode+Subclasses.h in Headers */,
058D0A4D195D05CB00B7D73C /* ASDisplayNodeExtras.h in Headers */,
058D0A4E195D05CB00B7D73C /* ASDisplayNodeExtras.mm in Headers */,
ACF6ED511B17847A00DA7C62 /* ASStackUnpositionedLayout.h in Headers */,
058D0A4F195D05CB00B7D73C /* ASImageNode.h in Headers */,
058D0A50195D05CB00B7D73C /* ASImageNode.mm in Headers */,
058D0A51195D05CB00B7D73C /* ASTextNode.h in Headers */,
@ -862,6 +973,7 @@
058D0A55195D05DC00B7D73C /* _ASDisplayView.h in Headers */,
058D0A56195D05DC00B7D73C /* _ASDisplayView.mm in Headers */,
058D0A57195D05DC00B7D73C /* ASHighlightOverlayLayer.h in Headers */,
ACF6ED2D1B17843500DA7C62 /* ASRatioLayoutNode.h in Headers */,
058D0A58195D05DC00B7D73C /* ASHighlightOverlayLayer.mm in Headers */,
058D0A59195D05DC00B7D73C /* ASMutableAttributedStringBuilder.h in Headers */,
058D0A5A195D05DC00B7D73C /* ASMutableAttributedStringBuilder.m in Headers */,
@ -875,37 +987,47 @@
058D0A61195D05DC00B7D73C /* ASTextNodeTextKitHelpers.h in Headers */,
058D0A62195D05DC00B7D73C /* ASTextNodeTextKitHelpers.mm in Headers */,
058D0A63195D05DC00B7D73C /* ASTextNodeTypes.h in Headers */,
ACF6ED261B17843500DA7C62 /* ASLayoutNode.h in Headers */,
292C599F1A956527007E5DD6 /* ASLayoutRangeType.h in Headers */,
464052251A3F83C40061C0BA /* ASMultidimensionalArrayUtils.h in Headers */,
ACF6ED221B17843500DA7C62 /* ASInsetLayoutNode.h in Headers */,
058D0A64195D05DC00B7D73C /* ASTextNodeWordKerner.h in Headers */,
299DA1A91A828D2900162D41 /* ASBatchContext.h in Headers */,
058D0A65195D05DC00B7D73C /* ASTextNodeWordKerner.m in Headers */,
058D0A66195D05DC00B7D73C /* NSMutableAttributedString+TextKitAdditions.h in Headers */,
ACF6ED201B17843500DA7C62 /* ASDimension.h in Headers */,
058D0A67195D05DC00B7D73C /* NSMutableAttributedString+TextKitAdditions.m in Headers */,
058D0A68195D05EC00B7D73C /* _ASAsyncTransaction.h in Headers */,
205F0E0F1B371875007741D0 /* UICollectionViewLayout+ASConvenience.h in Headers */,
058D0A69195D05EC00B7D73C /* _ASAsyncTransaction.m in Headers */,
058D0A6A195D05EC00B7D73C /* _ASAsyncTransactionContainer+Private.h in Headers */,
ACF6ED2B1B17843500DA7C62 /* ASOverlayLayoutNode.h in Headers */,
058D0A6B195D05EC00B7D73C /* _ASAsyncTransactionContainer.h in Headers */,
058D0A6C195D05EC00B7D73C /* _ASAsyncTransactionContainer.m in Headers */,
ACF6ED1C1B17843500DA7C62 /* ASCenterLayoutNode.h in Headers */,
6BDC61F61979037800E50D21 /* AsyncDisplayKit.h in Headers */,
058D0A6D195D05EC00B7D73C /* _ASAsyncTransactionGroup.h in Headers */,
058D0A6E195D05EC00B7D73C /* _ASAsyncTransactionGroup.m in Headers */,
205F0E1D1B373A2C007741D0 /* ASCollectionViewLayoutController.h in Headers */,
ACF6ED4E1B17847A00DA7C62 /* ASStackLayoutNodeUtilities.h in Headers */,
058D0A6F195D05EC00B7D73C /* UIView+ASConvenience.h in Headers */,
058D0A70195D05EC00B7D73C /* UIView+ASConvenience.m in Headers */,
ACF6ED2A1B17843500DA7C62 /* ASLayoutNodeSubclass.h in Headers */,
058D0A82195D060300B7D73C /* ASAssert.h in Headers */,
0516FA3C1A15563400B4EBED /* ASAvailability.h in Headers */,
0516FA3D1A15563400B4EBED /* ASLog.h in Headers */,
058D0A83195D060300B7D73C /* ASBaseDefines.h in Headers */,
058D0A84195D060300B7D73C /* ASDisplayNodeExtraIvars.h in Headers */,
AC3C4A511A1139C100143C57 /* ASCollectionView.h in Headers */,
ACF6ED4D1B17847A00DA7C62 /* ASLayoutNodeUtilities.h in Headers */,
292C59A01A956527007E5DD6 /* ASRangeHandlerPreload.h in Headers */,
055B9FA81A1C154B00035D6D /* ASNetworkImageNode.h in Headers */,
ACF6ED4F1B17847A00DA7C62 /* ASStackPositionedLayout.h in Headers */,
054963491A1EA066000F8E56 /* ASBasicImageDownloader.h in Headers */,
AC3C4A541A113EEC00143C57 /* ASCollectionViewProtocols.h in Headers */,
D785F6621A74327E00291744 /* ASScrollNode.h in Headers */,
0587F9BD1A7309ED00AFF0BA /* ASEditableTextNode.h in Headers */,
ACF6ED311B17843500DA7C62 /* ASStaticLayoutNode.h in Headers */,
05F20AA41A15733C00DCA68A /* ASImageProtocols.h in Headers */,
058D0A71195D05F800B7D73C /* _AS-objc-internal.h in Headers */,
058D0A72195D05F800B7D73C /* _ASCoreAnimationExtras.h in Headers */,
@ -913,6 +1035,7 @@
058D0A74195D05F800B7D73C /* _ASPendingState.h in Headers */,
058D0A75195D05F800B7D73C /* _ASPendingState.m in Headers */,
058D0A76195D05F900B7D73C /* _ASScopeTimer.h in Headers */,
ACF6ED241B17843500DA7C62 /* ASLayout.h in Headers */,
058D0A77195D05F900B7D73C /* ASDisplayNode+AsyncDisplay.mm in Headers */,
058D0A78195D05F900B7D73C /* ASDisplayNode+DebugTiming.h in Headers */,
058D0A79195D05F900B7D73C /* ASDisplayNode+DebugTiming.mm in Headers */,
@ -925,7 +1048,9 @@
292C59A21A956527007E5DD6 /* ASRangeHandler.h in Headers */,
058D0A7F195D05F900B7D73C /* ASSentinel.h in Headers */,
058D0A80195D05F900B7D73C /* ASSentinel.m in Headers */,
ACF6ED1E1B17843500DA7C62 /* ASCompositeNode.h in Headers */,
058D0A81195D05F900B7D73C /* ASThread.h in Headers */,
ACF6ED2F1B17843500DA7C62 /* ASStackLayoutNode.h in Headers */,
);
runOnlyForDeploymentPostprocessing = 0;
};
@ -1199,18 +1324,27 @@
058D0A26195D050800B7D73C /* _ASCoreAnimationExtras.mm in Sources */,
058D0A23195D050800B7D73C /* _ASAsyncTransactionContainer.m in Sources */,
058D0A1E195D050800B7D73C /* ASTextNodeShadower.m in Sources */,
ACF6ED2E1B17843500DA7C62 /* ASRatioLayoutNode.mm in Sources */,
058D0A18195D050800B7D73C /* _ASDisplayLayer.mm in Sources */,
ACF6ED321B17843500DA7C62 /* ASStaticLayoutNode.mm in Sources */,
ACF6ED2C1B17843500DA7C62 /* ASOverlayLayoutNode.mm in Sources */,
058D0A2C195D050800B7D73C /* ASSentinel.m in Sources */,
205F0E221B376416007741D0 /* CGRect+ASConvenience.m in Sources */,
205F0E1A1B37339C007741D0 /* ASAbstractLayoutController.mm in Sources */,
464052211A3F83C40061C0BA /* ASDataController.mm in Sources */,
299DA1AA1A828D2900162D41 /* ASBatchContext.mm in Sources */,
058D0A15195D050800B7D73C /* ASDisplayNodeExtras.mm in Sources */,
ACF6ED501B17847A00DA7C62 /* ASStackPositionedLayout.mm in Sources */,
058D0A1F195D050800B7D73C /* ASTextNodeTextKitHelpers.mm in Sources */,
ACF6ED1B1B17843500DA7C62 /* ASBackgroundLayoutNode.mm in Sources */,
055F1A3519ABD3E3004DAFF1 /* ASTableView.mm in Sources */,
205F0E121B371BD7007741D0 /* ASScrollDirection.m in Sources */,
ACF6ED271B17843500DA7C62 /* ASLayoutNode.mm in Sources */,
ACF6ED211B17843500DA7C62 /* ASDimension.mm in Sources */,
464052261A3F83C40061C0BA /* ASMultidimensionalArrayUtils.mm in Sources */,
055B9FA91A1C154B00035D6D /* ASNetworkImageNode.mm in Sources */,
ACF6ED521B17847A00DA7C62 /* ASStackUnpositionedLayout.mm in Sources */,
ACF6ED1D1B17843500DA7C62 /* ASCenterLayoutNode.mm in Sources */,
058D0A1D195D050800B7D73C /* ASTextNodeRenderer.mm in Sources */,
292C59A41A956527007E5DD6 /* ASRangeHandlerRender.mm in Sources */,
058D0A2A195D050800B7D73C /* ASDisplayNode+UIViewBridge.mm in Sources */,
@ -1218,29 +1352,35 @@
292C59A11A956527007E5DD6 /* ASRangeHandlerPreload.mm in Sources */,
058D0A20195D050800B7D73C /* ASTextNodeWordKerner.m in Sources */,
058D0A1A195D050800B7D73C /* ASHighlightOverlayLayer.mm in Sources */,
ACF6ED291B17843500DA7C62 /* ASLayoutNodeSize.mm in Sources */,
464052231A3F83C40061C0BA /* ASFlowLayoutController.mm in Sources */,
058D0A28195D050800B7D73C /* ASDisplayNode+AsyncDisplay.mm in Sources */,
0587F9BE1A7309ED00AFF0BA /* ASEditableTextNode.mm in Sources */,
058D0A21195D050800B7D73C /* NSMutableAttributedString+TextKitAdditions.m in Sources */,
ACF6ED251B17843500DA7C62 /* ASLayout.mm in Sources */,
058D0A25195D050800B7D73C /* UIView+ASConvenience.m in Sources */,
0549634A1A1EA066000F8E56 /* ASBasicImageDownloader.mm in Sources */,
058D0A14195D050800B7D73C /* ASDisplayNode.mm in Sources */,
058D0A1B195D050800B7D73C /* ASMutableAttributedStringBuilder.m in Sources */,
058D0A2B195D050800B7D73C /* ASImageNode+CGExtras.m in Sources */,
058D0A24195D050800B7D73C /* _ASAsyncTransactionGroup.m in Sources */,
055F1A3D19ABD43F004DAFF1 /* ASCellNode.m in Sources */,
058D0A1C195D050800B7D73C /* ASTextNodeCoreTextAdditions.m in Sources */,
058D0A13195D050800B7D73C /* ASControlNode.m in Sources */,
ACF6ED4C1B17847A00DA7C62 /* ASInternalHelpers.mm in Sources */,
ACF6ED1F1B17843500DA7C62 /* ASCompositeNode.mm in Sources */,
058D0A19195D050800B7D73C /* _ASDisplayView.mm in Sources */,
205F0E101B371875007741D0 /* UICollectionViewLayout+ASConvenience.m in Sources */,
05A6D05B19D0EB64002DD95E /* ASDealloc2MainObject.m in Sources */,
058D0A17195D050800B7D73C /* ASTextNode.mm in Sources */,
AC6456091B0A335000CF11B8 /* ASCellNode.mm in Sources */,
ACF6ED231B17843500DA7C62 /* ASInsetLayoutNode.mm in Sources */,
058D0A27195D050800B7D73C /* _ASPendingState.m in Sources */,
0516FA411A1563D200B4EBED /* ASMultiplexImageNode.mm in Sources */,
058D0A16195D050800B7D73C /* ASImageNode.mm in Sources */,
058D0A29195D050800B7D73C /* ASDisplayNode+DebugTiming.mm in Sources */,
205F0E1E1B373A2C007741D0 /* ASCollectionViewLayoutController.mm in Sources */,
058D0A22195D050800B7D73C /* _ASAsyncTransaction.m in Sources */,
ACF6ED301B17843500DA7C62 /* ASStackLayoutNode.mm in Sources */,
055F1A3919ABD413004DAFF1 /* ASRangeController.mm in Sources */,
296A0A2F1A9516B2005ACEAA /* ASBatchFetching.m in Sources */,
D785F6631A74327E00291744 /* ASScrollNode.m in Sources */,
@ -1298,7 +1438,7 @@
B350621E1B010EFD0018CF92 /* ASHighlightOverlayLayer.mm in Sources */,
B35062271B010EFD0018CF92 /* ASRangeController.mm in Sources */,
B35061F91B010EFD0018CF92 /* ASControlNode.m in Sources */,
B35061F41B010EFD0018CF92 /* ASCellNode.m in Sources */,
AC6456091B0A335000CF11B8 /* ASCellNode.mm in Sources */,
509E68661B3AEDD7009B9150 /* CGRect+ASConvenience.m in Sources */,
B35062561B010EFD0018CF92 /* ASSentinel.m in Sources */,
B350624A1B010EFD0018CF92 /* _ASCoreAnimationExtras.mm in Sources */,

25
AsyncDisplayKit/ASCellNode.m → AsyncDisplayKit/ASCellNode.mm
View File

@ -12,6 +12,8 @@
#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>
#import <AsyncDisplayKit/ASTextNode.h>
#import "ASInsetLayoutNode.h"
#import "ASCompositeNode.h"
#pragma mark -
#pragma mark ASCellNode
@ -91,8 +93,6 @@
@implementation ASTextCellNode
static const CGFloat kHorizontalPadding = 15.0f;
static const CGFloat kVerticalPadding = 11.0f;
static const CGFloat kFontSize = 18.0f;
- (instancetype)init
@ -106,21 +106,12 @@ static const CGFloat kFontSize = 18.0f;
return self;
}
- (CGSize)calculateSizeThatFits:(CGSize)constrainedSize
- (ASLayoutNode *)layoutNodeThatFits:(CGSize)constrainedSize
{
CGSize availableSize = CGSizeMake(constrainedSize.width - 2 * kHorizontalPadding,
constrainedSize.height - 2 * kVerticalPadding);
availableSize.width = MAX(0, availableSize.width);
availableSize.height = MAX(0, availableSize.height);
CGSize textNodeSize = [_textNode measure:availableSize];
return CGSizeMake(ceilf(2 * kHorizontalPadding + textNodeSize.width),
ceilf(2 * kVerticalPadding + textNodeSize.height));
}
- (void)layout
{
_textNode.frame = CGRectInset(self.bounds, kHorizontalPadding, kVerticalPadding);
static const CGFloat kHorizontalPadding = 15.0f;
static const CGFloat kVerticalPadding = 11.0f;
UIEdgeInsets insets = UIEdgeInsetsMake(kVerticalPadding, kHorizontalPadding, kVerticalPadding, kHorizontalPadding);
return [ASInsetLayoutNode newWithInsets:insets node:[ASCompositeNode newWithDisplayNode:_textNode]];
}
- (void)setText:(NSString *)text
@ -132,7 +123,7 @@ static const CGFloat kFontSize = 18.0f;
_textNode.attributedString = [[NSAttributedString alloc] initWithString:_text
attributes:@{NSFontAttributeName: [UIFont systemFontOfSize:kFontSize]}];
[self invalidateCalculatedSize];
[self invalidateCalculatedLayout];
}
@end

31
AsyncDisplayKit/ASDisplayNode+Subclasses.h
View File

@ -13,6 +13,8 @@
#import <AsyncDisplayKit/ASDisplayNode.h>
#import <AsyncDisplayKit/ASThread.h>
#import <AsyncDisplayKit/ASLayout.h>
@class ASLayoutNode;
/**
* The subclass header _ASDisplayNode+Subclasses_ defines the following methods that either must or can be overriden by
@ -65,6 +67,17 @@
*/
@property (nonatomic, readonly, assign, getter=isInHierarchy) BOOL inHierarchy;
/**
* @abstract Return the calculated layout.
*
* @discussion Ideal for use by subclasses in -layout, having already prompted their subnodes to calculate their size by
* calling -measure: on them in -calculateLayoutThatFits:.
*
* @return Layout already calculated by ASLayoutNode returned by layoutNodeThatFits:.
*
* @warning Subclasses must not override this; it returns the last cached layout and is never expensive.
*/
@property (nonatomic, readonly, assign) ASLayout *calculatedLayout;
/** @name View Lifecycle */
@ -95,31 +108,29 @@
*/
- (void)layoutDidFinish;
/** @name Sizing */
- (ASLayoutNode *)layoutNodeThatFits:(CGSize)constrainedSize;
/**
* @abstract Return the calculated size.
* @abstract Return the calculated layout.
*
* @param constrainedSize The maximum size the receiver should fit in.
*
* @discussion Subclasses that override should expect this method to be called on a non-main thread. The returned size
* @discussion Subclasses that override should expect this method to be called on a non-main thread. The returned layout
* is cached by ASDisplayNode for quick access during -layout, via -calculatedSize. Other expensive work that needs to
* be done before display can be performed here, and using ivars to cache any valuable intermediate results is
* encouraged.
*
* @note This method should not be called directly outside of ASDisplayNode; use -measure: or -calculatedSize instead.
* @note This method should not be called directly outside of ASDisplayNode; use -measure: or -calculatedLayout instead.
*/
- (CGSize)calculateSizeThatFits:(CGSize)constrainedSize;
- (ASLayout *)calculateLayoutThatFits:(CGSize)constrainedSize;
/**
* @abstract Invalidate previously measured and cached size.
* @abstract Invalidate previously measured and cached layout.
*
* @discussion Subclasses should call this method to invalidate the previously measured and cached size for the display
* @discussion Subclasses should call this method to invalidate the previously measured and cached layout for the display
* node, when the contents of the node change in such a way as to require measuring it again.
*/
- (void)invalidateCalculatedSize;
- (void)invalidateCalculatedLayout;
/** @name Drawing */

16
AsyncDisplayKit/ASDisplayNode.h
View File

@ -128,10 +128,10 @@ typedef CALayer *(^ASDisplayNodeLayerBlock)();
* @discussion Though this method does not set the bounds of the view, it does have side effects--caching both the
* constraint and the result.
*
* @warning Subclasses must not override this; it caches results from -calculateSizeThatFits:. Calling this method may
* @warning Subclasses must not override this; it caches results from -layoutNodeThatFits:. Calling this method may
* be expensive if result is not cached.
*
* @see [ASDisplayNode(Subclassing) calculateSizeThatFits:]
* @see [ASDisplayNode(Subclassing) layoutNodeThatFits:]
*/
- (CGSize)measure:(CGSize)constrainedSize;
@ -139,20 +139,20 @@ typedef CALayer *(^ASDisplayNodeLayerBlock)();
* @abstract Return the calculated size.
*
* @discussion Ideal for use by subclasses in -layout, having already prompted their subnodes to calculate their size by
* calling -measure: on them in -calculateSizeThatFits:.
* calling -measure: on them in -calculateLayoutThatFits.
*
* @return Size already calculated by calculateSizeThatFits:.
* @return Size already calculated by -calculateLayoutThatFits:.
*
* @warning Subclasses must not override this; it returns the last cached size calculated and is never expensive.
* @warning Subclasses must not override this; it returns the last cached measurement and is never expensive.
*/
@property (nonatomic, readonly, assign) CGSize calculatedSize;
/**
* @abstract Return the constrained size used for calculating size.
* @abstract Return the constrained size used for calculating layout.
*
* @return The constrained size used by calculateSizeThatFits:.
* @return The constrained size used by layoutNodeThatFits:.
*/
@property (nonatomic, readonly, assign) CGSize constrainedSizeForCalculatedSize;
@property (nonatomic, readonly, assign) CGSize constrainedSizeForCalculatedLayout;
/** @name Managing the nodes hierarchy */

127
AsyncDisplayKit/ASDisplayNode.mm
View File

@ -11,6 +11,7 @@
#import "ASDisplayNodeInternal.h"
#import <objc/runtime.h>
#import <stack>
#import "_ASAsyncTransaction.h"
#import "_ASPendingState.h"
@ -18,6 +19,11 @@
#import "_ASScopeTimer.h"
#import "ASDisplayNodeExtras.h"
#import "ASInternalHelpers.h"
#import "ASLayoutNodeSubclass.h"
#import "ASCompositeNode.h"
#import "ASLayoutNodeUtilities.h"
@interface ASDisplayNode () <UIGestureRecognizerDelegate>
/**
@ -37,39 +43,6 @@
@implementation ASDisplayNode
BOOL ASDisplayNodeSubclassOverridesSelector(Class subclass, SEL selector)
{
Method superclassMethod = class_getInstanceMethod([ASDisplayNode class], selector);
Method subclassMethod = class_getInstanceMethod(subclass, selector);
IMP superclassIMP = superclassMethod ? method_getImplementation(superclassMethod) : NULL;
IMP subclassIMP = subclassMethod ? method_getImplementation(subclassMethod) : NULL;
return (superclassIMP != subclassIMP);
}
CGFloat ASDisplayNodeScreenScale()
{
static CGFloat screenScale = 0.0;
static dispatch_once_t onceToken;
ASDispatchOnceOnMainThread(&onceToken, ^{
screenScale = [[UIScreen mainScreen] scale];
});
return screenScale;
}
static void ASDispatchOnceOnMainThread(dispatch_once_t *predicate, dispatch_block_t block)
{
if ([NSThread isMainThread]) {
dispatch_once(predicate, block);
} else {
if (DISPATCH_EXPECT(*predicate == 0L, NO)) {
dispatch_sync(dispatch_get_main_queue(), ^{
dispatch_once(predicate, block);
});
}
}
}
void ASDisplayNodePerformBlockOnMainThread(void (^block)())
{
if ([NSThread isMainThread]) {
@ -88,10 +61,11 @@ void ASDisplayNodePerformBlockOnMainThread(void (^block)())
}
// Subclasses should never override these
ASDisplayNodeAssert(!ASDisplayNodeSubclassOverridesSelector(self, @selector(calculatedSize)), @"Subclass %@ must not override calculatedSize method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASDisplayNodeSubclassOverridesSelector(self, @selector(measure:)), @"Subclass %@ must not override measure method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASDisplayNodeSubclassOverridesSelector(self, @selector(recursivelyClearContents)), @"Subclass %@ must not override recursivelyClearContents method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASDisplayNodeSubclassOverridesSelector(self, @selector(recursivelyClearFetchedData)), @"Subclass %@ must not override recursivelyClearFetchedData method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASSubclassOverridesSelector([ASDisplayNode class], self, @selector(calculatedSize)), @"Subclass %@ must not override calculatedSize method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASSubclassOverridesSelector([ASDisplayNode class], self, @selector(calculatedLayout)), @"Subclass %@ must not override calculatedLayout method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASSubclassOverridesSelector([ASDisplayNode class], self, @selector(measure:)), @"Subclass %@ must not override measure method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASSubclassOverridesSelector([ASDisplayNode class], self, @selector(recursivelyClearContents)), @"Subclass %@ must not override recursivelyClearContents method", NSStringFromClass(self));
ASDisplayNodeAssert(!ASSubclassOverridesSelector([ASDisplayNode class], self, @selector(recursivelyClearFetchedData)), @"Subclass %@ must not override recursivelyClearFetchedData method", NSStringFromClass(self));
}
+ (BOOL)layerBackedNodesEnabled
@ -113,7 +87,7 @@ void ASDisplayNodePerformBlockOnMainThread(void (^block)())
- (void)_initializeInstance
{
_contentsScaleForDisplay = ASDisplayNodeScreenScale();
_contentsScaleForDisplay = ASScreenScale();
_displaySentinel = [[ASSentinel alloc] init];
@ -126,16 +100,16 @@ void ASDisplayNodePerformBlockOnMainThread(void (^block)())
_flags.implementsDrawParameters = ([self respondsToSelector:@selector(drawParametersForAsyncLayer:)] ? 1 : 0);
ASDisplayNodeMethodOverrides overrides = ASDisplayNodeMethodOverrideNone;
if (ASDisplayNodeSubclassOverridesSelector([self class], @selector(touchesBegan:withEvent:))) {
if (ASSubclassOverridesSelector([ASDisplayNode class], [self class], @selector(touchesBegan:withEvent:))) {
overrides |= ASDisplayNodeMethodOverrideTouchesBegan;
}
if (ASDisplayNodeSubclassOverridesSelector([self class], @selector(touchesMoved:withEvent:))) {
if (ASSubclassOverridesSelector([ASDisplayNode class], [self class], @selector(touchesMoved:withEvent:))) {
overrides |= ASDisplayNodeMethodOverrideTouchesMoved;
}
if (ASDisplayNodeSubclassOverridesSelector([self class], @selector(touchesCancelled:withEvent:))) {
if (ASSubclassOverridesSelector([ASDisplayNode class], [self class], @selector(touchesCancelled:withEvent:))) {
overrides |= ASDisplayNodeMethodOverrideTouchesCancelled;
}
if (ASDisplayNodeSubclassOverridesSelector([self class], @selector(touchesEnded:withEvent:))) {
if (ASSubclassOverridesSelector([ASDisplayNode class], [self class], @selector(touchesEnded:withEvent:))) {
overrides |= ASDisplayNodeMethodOverrideTouchesEnded;
}
_methodOverrides = overrides;
@ -453,17 +427,17 @@ void ASDisplayNodePerformBlockOnMainThread(void (^block)())
// - the width is different from the last time
// - the height is different from the last time
if (!_flags.isMeasured || !CGSizeEqualToSize(constrainedSize, _constrainedSize)) {
_size = [self calculateSizeThatFits:constrainedSize];
_layout = [self calculateLayoutThatFits:constrainedSize];
_constrainedSize = constrainedSize;
_flags.isMeasured = YES;
}
ASDisplayNodeAssertTrue(_size.width >= 0.0);
ASDisplayNodeAssertTrue(_size.height >= 0.0);
ASDisplayNodeAssertTrue(_layout.size.width >= 0.0);
ASDisplayNodeAssertTrue(_layout.size.height >= 0.0);
// we generate placeholders at measure: time so that a node is guaranteed to have a placeholder ready to go
// also if a node has no size, it should not have a placeholder
if (self.placeholderEnabled && [self _displaysAsynchronously] && _size.width > 0.0 && _size.height > 0.0) {
if (self.placeholderEnabled && [self _displaysAsynchronously] && _layout.size.width > 0.0 && _layout.size.height > 0.0) {
if (!_placeholderImage) {
_placeholderImage = [self placeholderImage];
}
@ -473,7 +447,7 @@ void ASDisplayNodePerformBlockOnMainThread(void (^block)())
}
}
return _size;
return _layout.size;
}
- (BOOL)displaysAsynchronously
@ -1282,16 +1256,30 @@ static NSInteger incrementIfFound(NSInteger i) {
#pragma mark - For Subclasses
- (CGSize)calculateSizeThatFits:(CGSize)constrainedSize
- (ASLayoutNode *)layoutNodeThatFits:(CGSize)constrainedSize
{
ASDisplayNodeAssertThreadAffinity(self);
return CGSizeZero;
return [ASLayoutNode new];
}
- (ASLayout *)calculateLayoutThatFits:(CGSize)constrainedSize
{
ASDisplayNodeAssertThreadAffinity(self);
ASLayoutNode *layoutNode = [self layoutNodeThatFits:constrainedSize];
ASLayout *layout = [layoutNode layoutThatFits:{CGSizeZero, constrainedSize} parentSize:constrainedSize];
return layout;
}
- (ASLayout *)calculatedLayout
{
ASDisplayNodeAssertThreadAffinity(self);
return _layout;
}
- (CGSize)calculatedSize
{
ASDisplayNodeAssertThreadAffinity(self);
return _size;
return _layout.size;
}
- (CGSize)constrainedSizeForCalculatedSize
@ -1305,7 +1293,7 @@ static NSInteger incrementIfFound(NSInteger i) {
return nil;
}
- (void)invalidateCalculatedSize
- (void)invalidateCalculatedLayout
{
ASDisplayNodeAssertThreadAffinity(self);
// This will cause -measure: to actually compute the size instead of returning the previously cached size
@ -1376,6 +1364,43 @@ static NSInteger incrementIfFound(NSInteger i) {
- (void)layout
{
ASDisplayNodeAssertMainThread();
if (!_flags.isMeasured) {
return;
}
struct Context {
ASLayout *layout;
CGPoint absoultePosition;
BOOL visited;
};
// Stack of Contexts, used to keep track of layout nodes while traversing the calculated layout in a DFS fashion.
std::stack<Context> stack;
stack.push({_layout, CGPointMake(0, 0), NO});
while (!stack.empty()) {
Context &context = stack.top();
if (context.visited) {
stack.pop();
} else {
ASDisplayNodeAssertNotNil(context.layout.node, "node is required in calculated ASLayout.");
context.visited = YES;
if ([context.layout.node isKindOfClass:[ASCompositeNode class]]) {
ASDisplayNode *subnode = ((ASCompositeNode *)context.layout.node).displayNode;
ASDisplayNodeAssertNotNil(subnode, "displayNode is required in ASCompositeNode.");
CGPoint subnodePosition = context.absoultePosition;
CGSize subnodeSize = context.layout.size;
subnode.frame = CGRectMake(subnodePosition.x, subnodePosition.y, subnodeSize.width, subnodeSize.height);
}
for (ASLayoutChild *child in context.layout.children) {
stack.push({child.layout, context.absoultePosition + child.position, NO});
}
}
}
}
- (void)displayWillStart

13
AsyncDisplayKit/ASEditableTextNode.mm
View File

@ -16,6 +16,8 @@
#import "ASTextNodeWordKerner.h"
#import "ASThread.h"
#import "ASLayoutNode.h"
//! @abstract This subclass exists solely to ensure the text view's panGestureRecognizer never begins, because it's sporadically enabled by UITextView. It will be removed pending rdar://14729288.
@interface _ASDisabledPanUITextView : UITextView
@end
@ -143,16 +145,17 @@
[self.view addSubview:_textKitComponents.textView];
}
- (CGSize)calculateSizeThatFits:(CGSize)constrainedSize
- (ASLayout *)calculateLayoutThatFits:(CGSize)constrainedSize
{
ASTextKitComponents *displayedComponents = [self isDisplayingPlaceholder] ? _placeholderTextKitComponents : _textKitComponents;
CGSize textSize = [displayedComponents sizeForConstrainedWidth:constrainedSize.width];
return CGSizeMake(constrainedSize.width, fminf(textSize.height, constrainedSize.height));
CGSize finalSize = CGSizeMake(constrainedSize.width, fminf(textSize.height, constrainedSize.height));
return [ASLayout newWithNode:[ASLayoutNode new] size:finalSize];
}
- (void)layout
{
[super layout];
ASDisplayNodeAssertMainThread();
[self _layoutTextView];
}
@ -290,7 +293,7 @@
[_textKitComponents.textStorage setAttributedString:attributedStringToDisplay];
// Calculated size depends on the seeded text.
[self invalidateCalculatedSize];
[self invalidateCalculatedLayout];
// Update if placeholder is shown.
[self _updateDisplayingPlaceholder];
@ -389,7 +392,7 @@
[self _updateDisplayingPlaceholder];
// Invalidate, as our calculated size depends on the textview's seeded text.
[self invalidateCalculatedSize];
[self invalidateCalculatedLayout];
// Delegateify.
[self _delegateDidUpdateText];

15
AsyncDisplayKit/ASImageNode.mm
View File

@ -17,6 +17,9 @@
#import "ASImageNode+CGExtras.h"
#import "ASInternalHelpers.h"
#import "ASLayoutNode.h"
@interface _ASImageNodeDrawParameters : NSObject
@property (nonatomic, assign, readonly) BOOL cropEnabled;
@ -82,7 +85,7 @@
return nil;
// TODO can this be removed?
self.contentsScale = ASDisplayNodeScreenScale();
self.contentsScale = ASScreenScale();
self.contentMode = UIViewContentModeScaleAspectFill;
self.opaque = NO;
@ -106,13 +109,13 @@
return nil;
}
- (CGSize)calculateSizeThatFits:(CGSize)constrainedSize
- (ASLayout *)calculateLayoutThatFits:(CGSize)constrainedSize
{
ASDN::MutexLocker l(_imageLock);
CGSize size = CGSizeZero;
if (_image)
return _image.size;
else
return CGSizeZero;
size = _image.size;
return [ASLayout newWithNode:[ASLayoutNode new] size:size];
}
- (void)setImage:(UIImage *)image
@ -123,7 +126,7 @@
ASDN::MutexUnlocker u(_imageLock);
ASDisplayNodePerformBlockOnMainThread(^{
[self invalidateCalculatedSize];
[self invalidateCalculatedLayout];
[self setNeedsDisplay];
});
}

15
AsyncDisplayKit/ASTextNode.mm
View File

@ -19,6 +19,8 @@
#import "ASTextNodeRenderer.h"
#import "ASTextNodeShadower.h"
#import "ASLayoutNode.h"
static const NSTimeInterval ASTextNodeHighlightFadeOutDuration = 0.15;
static const NSTimeInterval ASTextNodeHighlightFadeInDuration = 0.1;
static const CGFloat ASTextNodeHighlightLightOpacity = 0.11;
@ -184,7 +186,7 @@ ASDISPLAYNODE_INLINE CGFloat ceilPixelValue(CGFloat f)
#pragma mark - ASDisplayNode
- (CGSize)calculateSizeThatFits:(CGSize)constrainedSize
- (ASLayout *)calculateLayoutThatFits:(CGSize)constrainedSize
{
ASDisplayNodeAssert(constrainedSize.width >= 0, @"Constrained width for text (%f) is too narrow", constrainedSize.width);
ASDisplayNodeAssert(constrainedSize.height >= 0, @"Constrained height for text (%f) is too short", constrainedSize.height);
@ -210,8 +212,9 @@ ASDISPLAYNODE_INLINE CGFloat ceilPixelValue(CGFloat f)
ASDisplayNodeAssert(renderSizePlusShadowPadding.width >= 0, @"Calculated width for text with shadow padding (%f) is too narrow", constrainedSizeForText.width);
ASDisplayNodeAssert(renderSizePlusShadowPadding.height >= 0, @"Calculated height for text with shadow padding (%f) is too short", constrainedSizeForText.height);
return CGSizeMake(MIN(ceilPixelValue(renderSizePlusShadowPadding.width), constrainedSize.width),
MIN(ceilPixelValue(renderSizePlusShadowPadding.height), constrainedSize.height));
CGSize finalSize = CGSizeMake(MIN(ceilPixelValue(renderSizePlusShadowPadding.width), constrainedSize.width),
MIN(ceilPixelValue(renderSizePlusShadowPadding.height), constrainedSize.height));
return [ASLayout newWithNode:[ASLayoutNode new] size:finalSize];
}
- (void)displayDidFinish
@ -337,8 +340,8 @@ ASDISPLAYNODE_INLINE CGFloat ceilPixelValue(CGFloat f)
// We need an entirely new renderer
[self _invalidateRenderer];
// Tell the display node superclasses that the cached sizes are incorrect now
[self invalidateCalculatedSize];
// Tell the display node superclasses that the cached layout is incorrect now
[self invalidateCalculatedLayout];
[self setNeedsDisplay];
@ -359,7 +362,7 @@ ASDISPLAYNODE_INLINE CGFloat ceilPixelValue(CGFloat f)
if ((_exclusionPaths == nil && exclusionPaths != nil) || (![_exclusionPaths isEqualToArray:exclusionPaths])) {
_exclusionPaths = exclusionPaths;
[self _invalidateRenderer];
[self invalidateCalculatedSize];
[self invalidateCalculatedLayout];
[self setNeedsDisplay];
}
}

13
AsyncDisplayKit/AsyncDisplayKit.h
View File

@ -24,3 +24,16 @@
#import <AsyncDisplayKit/ASCellNode.h>
#import <AsyncDisplayKit/ASScrollNode.h>
#import <AsyncDisplayKit/ASLayout.h>
#import <AsyncDisplayKit/ASDimension.h>
#import <AsyncDisplayKit/ASLayoutNodeSize.h>
#import <AsyncDisplayKit/ASCompositeNode.h>
#import <AsyncDisplayKit/ASLayoutNode.h>
#import <AsyncDisplayKit/ASBackgroundLayoutNode.h>
#import <AsyncDisplayKit/ASCenterLayoutNode.h>
#import <AsyncDisplayKit/ASInsetLayoutNode.h>
#import <AsyncDisplayKit/ASOverlayLayoutNode.h>
#import <AsyncDisplayKit/ASRatioLayoutNode.h>
#import <AsyncDisplayKit/ASStaticLayoutNode.h>
#import <AsyncDisplayKit/ASStackLayoutNode.h>

4
AsyncDisplayKit/Details/ASHighlightOverlayLayer.mm
View File

@ -10,7 +10,7 @@
#import <UIKit/UIKit.h>
#import <AsyncDisplayKit/ASDisplayNodeInternal.h>
#import "ASInternalHelpers.h"
static const CGFloat kCornerRadius = 2.5;
static const UIEdgeInsets padding = {2, 4, 1.5, 4};
@ -23,7 +23,7 @@ static const UIEdgeInsets padding = {2, 4, 1.5, 4};
+ (id)defaultValueForKey:(NSString *)key
{
if ([key isEqualToString:@"contentsScale"]) {
return @(ASDisplayNodeScreenScale());
return @(ASScreenScale());
} else if ([key isEqualToString:@"highlightColor"]) {
CGFloat components[] = {0, 0, 0, 0.25};
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

5
AsyncDisplayKit/Private/ASDisplayNodeInternal.h
View File

@ -17,9 +17,8 @@
#import "ASDisplayNode.h"
#import "ASSentinel.h"
#import "ASThread.h"
#import "ASLayout.h"
BOOL ASDisplayNodeSubclassOverridesSelector(Class subclass, SEL selector);
CGFloat ASDisplayNodeScreenScale();
void ASDisplayNodePerformBlockOnMainThread(void (^block)());
typedef NS_OPTIONS(NSUInteger, ASDisplayNodeMethodOverrides) {
@ -51,7 +50,7 @@ typedef NS_OPTIONS(NSUInteger, ASDisplayNodeMethodOverrides) {
// This is the desired contentsScale, not the scale at which the layer's contents should be displayed
CGFloat _contentsScaleForDisplay;
CGSize _size;
ASLayout *_layout;
CGSize _constrainedSize;
UIEdgeInsets _hitTestSlop;
NSMutableArray *_subnodes;

7
Base/ASAssert.h
View File

@ -47,3 +47,10 @@
#define ASDisplayNodeFailAssert(description, ...) ASDisplayNodeAssertWithSignal(NO, nil, (description), ##__VA_ARGS__)
#define ASDisplayNodeCFailAssert(description, ...) ASDisplayNodeCAssertWithSignal(NO, nil, (description), ##__VA_ARGS__)
#define ASDisplayNodeConditionalAssert(shouldTestCondition, condition, description, ...) ASDisplayNodeAssert((!(shouldTestCondition) || (condition)), nil, (description), ##__VA_ARGS__)
#define ASDisplayNodeConditionalCAssert(shouldTestCondition, condition, description, ...) ASDisplayNodeCAssert((!(shouldTestCondition) || (condition)), nil, (description), ##__VA_ARGS__)
#define ASDisplayNodeCAssertPositiveReal(description, num) ASDisplayNodeCAssert(num >= 0 && num < CGFLOAT_MAX, @"%@ must be a real positive integer.", description)
#define ASDisplayNodeCAssertInfOrPositiveReal(description, num) ASDisplayNodeCAssert(isinf(num) || (num >= 0 && num < CGFLOAT_MAX), @"%@ must be infinite or a real positive integer.", description)