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[ASDisplayNode] Move constrainedSize to layout

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This commit is contained in:
Levi McCallum
2016-05-20 12:43:35 -07:00
parent a004cc7263
commit 19e949e02f
4 changed files with 13 additions and 37 deletions
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34
AsyncDisplayKit/ASDisplayNode.mm
View File

@@ -616,25 +616,20 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
[self cancelLayoutTransitionsInProgress];
ASLayout *previousLayout = _layout;
ASSizeRange previousConstrainedSize = _constrainedSize;
ASLayout *newLayout = [self calculateLayoutThatFits:constrainedSize];
if (ASHierarchyStateIncludesLayoutPending(_hierarchyState)) {
_pendingLayoutTransition = [[ASLayoutTransition alloc] initWithNode:self
pendingLayout:newLayout
pendingConstrainedSize:constrainedSize
previousLayout:previousLayout
previousConstrainedSize:previousConstrainedSize];
previousLayout:previousLayout];
} else {
ASLayoutTransition *layoutContext;
if (self.usesImplicitHierarchyManagement) {
layoutContext = [[ASLayoutTransition alloc] initWithNode:self
pendingLayout:newLayout
pendingConstrainedSize:constrainedSize
previousLayout:previousLayout
previousConstrainedSize:previousConstrainedSize];
previousLayout:previousLayout];
}
[self applyLayout:newLayout constrainedSize:constrainedSize layoutContext:layoutContext];
[self applyLayout:newLayout layoutContext:layoutContext];
[self _completeLayoutCalculation];
}
@@ -658,7 +653,7 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
// only calculate the size if
// - we haven't already
// - the constrained size range is different
return (!_flags.isMeasured || !ASSizeRangeEqualToSizeRange(constrainedSize, _constrainedSize));
return (!_flags.isMeasured || !ASSizeRangeEqualToSizeRange(constrainedSize, _layout.constrainedSizeRange));
}
#pragma mark - Layout Transition
@@ -667,9 +662,8 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
shouldMeasureAsync:(BOOL)shouldMeasureAsync
measurementCompletion:(void(^)())completion
{
ASSizeRange currentConstrainedSize = _constrainedSize;
[self invalidateCalculatedLayout];
[self transitionLayoutWithSizeRange:currentConstrainedSize
[self transitionLayoutWithSizeRange:_layout.constrainedSizeRange
animated:animated
shouldMeasureAsync:shouldMeasureAsync
measurementCompletion:completion];
@@ -732,8 +726,7 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
}
ASLayout *previousLayout = _layout;
ASSizeRange previousConstrainedSize = _constrainedSize;
[self applyLayout:newLayout constrainedSize:constrainedSize layoutContext:nil];
[self applyLayout:newLayout layoutContext:nil];
ASDisplayNodePerformBlockOnEverySubnode(self, ^(ASDisplayNode * _Nonnull node) {
[node applyPendingLayoutContext];
@@ -749,9 +742,7 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
_pendingLayoutTransition = [[ASLayoutTransition alloc] initWithNode:self
pendingLayout:newLayout
pendingConstrainedSize:constrainedSize
previousLayout:previousLayout
previousConstrainedSize:previousConstrainedSize];
previousLayout:previousLayout];
[_pendingLayoutTransition applySubnodeInsertions];
_transitionContext = [[_ASTransitionContext alloc] initWithAnimation:animated
@@ -1032,7 +1023,6 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
return;
}
ASSizeRange oldConstrainedSize = _constrainedSize;
[self invalidateCalculatedLayout];
if (_supernode) {
@@ -1045,7 +1035,7 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
}
// This is the root node. Trigger a full measurement pass on *current* thread. Old constrained size is re-used.
[self measureWithSizeRange:oldConstrainedSize];
[self measureWithSizeRange:_layout.constrainedSizeRange];
CGRect oldBounds = self.bounds;
CGSize oldSize = oldBounds.size;
@@ -2014,7 +2004,7 @@ void recursivelyTriggerDisplayForLayer(CALayer *layer, BOOL shouldBlock)
- (ASSizeRange)constrainedSizeForCalculatedLayout
{
ASDN::MutexLocker l(_propertyLock);
return _constrainedSize;
return _layout.constrainedSizeRange;
}
- (void)setLayoutSpecBlock:(ASLayoutSpecBlock)layoutSpecBlock
@@ -2400,15 +2390,12 @@ void recursivelyTriggerDisplayForLayer(CALayer *layer, BOOL shouldBlock)
{
ASDN::MutexLocker l(_propertyLock);
if (_pendingLayoutTransition) {
[self applyLayout:_pendingLayoutTransition.pendingLayout
constrainedSize:_pendingLayoutTransition.pendingConstrainedSize
layoutContext:_pendingLayoutTransition];
[self applyLayout:_pendingLayoutTransition.pendingLayout layoutContext:_pendingLayoutTransition];
_pendingLayoutTransition = nil;
}
}
- (void)applyLayout:(ASLayout *)layout
constrainedSize:(ASSizeRange)constrainedSize
layoutContext:(ASLayoutTransition *)layoutContext
{
ASDN::MutexLocker l(_propertyLock);
@@ -2418,7 +2405,6 @@ void recursivelyTriggerDisplayForLayer(CALayer *layer, BOOL shouldBlock)
ASDisplayNodeAssertTrue(layout.size.width >= 0.0);
ASDisplayNodeAssertTrue(layout.size.height >= 0.0);
_constrainedSize = constrainedSize;
_flags.isMeasured = YES;
if (self.usesImplicitHierarchyManagement && layoutContext != nil) {

2
AsyncDisplayKit/Private/ASDisplayNodeInternal.h
View File

@@ -103,8 +103,6 @@ FOUNDATION_EXPORT NSString * const ASRenderingEngineDidDisplayNodesScheduledBefo
ASEnvironmentState _environmentState;
ASLayout *_layout;
ASSizeRange _constrainedSize;
UIEdgeInsets _hitTestSlop;
NSMutableArray *_subnodes;

6
AsyncDisplayKit/Private/ASLayoutTransition.h
View File

@@ -16,15 +16,11 @@
@property (nonatomic, readonly, weak) ASDisplayNode *node;
@property (nonatomic, readonly, strong) ASLayout *pendingLayout;
@property (nonatomic, readonly, assign) ASSizeRange pendingConstrainedSize;
@property (nonatomic, readonly, strong) ASLayout *previousLayout;
@property (nonatomic, readonly, assign) ASSizeRange previousConstrainedSize;
- (instancetype)initWithNode:(ASDisplayNode *)node
pendingLayout:(ASLayout *)pendingLayout
pendingConstrainedSize:(ASSizeRange)pendingConstrainedSize
previousLayout:(ASLayout *)previousLayout
previousConstrainedSize:(ASSizeRange)previousConstrainedSize;
previousLayout:(ASLayout *)previousLayout;
- (void)applySubnodeInsertions;

8
AsyncDisplayKit/Private/ASLayoutTransition.mm
View File

@@ -29,17 +29,13 @@
- (instancetype)initWithNode:(ASDisplayNode *)node
pendingLayout:(ASLayout *)pendingLayout
pendingConstrainedSize:(ASSizeRange)pendingConstrainedSize
previousLayout:(ASLayout *)previousLayout
previousConstrainedSize:(ASSizeRange)previousConstrainedSize
{
self = [super init];
if (self) {
_node = node;
_pendingLayout = pendingLayout;
_pendingConstrainedSize = pendingConstrainedSize;
_previousLayout = previousLayout;
_previousConstrainedSize = previousConstrainedSize;
}
return self;
}
@@ -129,9 +125,9 @@
{
ASDN::MutexLocker l(_propertyLock);
if ([key isEqualToString:ASTransitionContextFromLayoutKey]) {
return _previousConstrainedSize;
return _previousLayout.constrainedSizeRange;
} else if ([key isEqualToString:ASTransitionContextToLayoutKey]) {
return _pendingConstrainedSize;
return _pendingLayout.constrainedSizeRange;
} else {
return ASSizeRangeMake(CGSizeZero, CGSizeZero);
}