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This commit is contained in:
Levi McCallum 2016-02-01 18:29:50 -08:00
parent d168ec78ce
commit ac3c9d220b
1 changed files with 26 additions and 22 deletions
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48
AsyncDisplayKit/ASDisplayNode.mm
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@ -98,7 +98,8 @@ NSInteger const ASDefaultDrawingPriority = ASDefaultTransactionPriority;
static BOOL usesImplicitHierarchyManagement = FALSE;
+ (BOOL)usesImplicitHierarchyManagement {
+ (BOOL)usesImplicitHierarchyManagement
{
return usesImplicitHierarchyManagement;
}
@ -645,11 +646,11 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
[_layout.sublayouts asdk_diffWithArray:newLayout.sublayouts insertions:&insertions deletions:&deletions compareBlock:^BOOL(ASLayout *lhs, ASLayout *rhs) {
return ASObjectIsEqual(lhs.layoutableObject, rhs.layoutableObject);
}];
_insertedSubnodes = [self _filterSublayouts:newLayout.sublayouts withIndexes:insertions];
_deletedSubnodes = [self _filterSublayouts:_layout.sublayouts withIndexes:deletions];
_insertedSubnodes = [self _filterNodesInLayouts:newLayout.sublayouts withIndexes:insertions];
_deletedSubnodes = [self _filterNodesInLayouts:_layout.sublayouts withIndexes:deletions];
} else {
NSIndexSet *indexes = [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, [newLayout.sublayouts count])];
_insertedSubnodes = [self _filterSublayouts:newLayout.sublayouts withIndexes:indexes];
_insertedSubnodes = [self _filterNodesInLayouts:newLayout.sublayouts withIndexes:indexes];
_deletedSubnodes = @[];
}
@ -667,13 +668,19 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
// 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] &&
_layout.size.width > 0.0 && _layout.size.height > 0.0) {
[self __generatePlaceholder];
if (!_placeholderImage) {
_placeholderImage = [self placeholderImage];
}
if (_placeholderLayer) {
[self _setupPlaceholderLayerContents];
}
}
return _layout;
}
- (NSArray<_ASDisplayNodePosition *> *)_filterSublayouts:(NSArray<ASLayout *> *)layouts withIndexes:(NSIndexSet *)indexes
- (NSArray<_ASDisplayNodePosition *> *)_filterNodesInLayouts:(NSArray<ASLayout *> *)layouts withIndexes:(NSIndexSet *)indexes
{
NSMutableArray<_ASDisplayNodePosition *> *result = [NSMutableArray array];
[indexes enumerateIndexesUsingBlock:^(NSUInteger idx, BOOL * _Nonnull stop) {
@ -689,17 +696,6 @@ static ASDisplayNodeMethodOverrides GetASDisplayNodeMethodOverrides(Class c)
// subclass override
}
- (void)__generatePlaceholder
{
if (!_placeholderImage) {
_placeholderImage = [self placeholderImage];
}
if (_placeholderLayer) {
[self _setupPlaceholderLayerContents];
}
}
- (BOOL)displaysAsynchronously
{
ASDN::MutexLocker l(_propertyLock);
@ -2055,7 +2051,7 @@ static BOOL ShouldUseNewRenderingRange = YES;
CGRect subnodeFrame = CGRectZero;
for (ASLayout *subnodeLayout in _layout.sublayouts) {
if (![[self class] usesImplicitHierarchyManagement]) {
ASDisplayNodeAssert([_subnodes containsObject:subnodeLayout.layoutableObject], @"Cached sublayouts must only contain subnodes' layout. self = %@, subnodes = %@", self, _subnodes);
ASDisplayNodeAssert([_subnodes containsObject:subnodeLayout.layoutableObject], @"Sublayouts must only contain subnodes' layout. self = %@, subnodes = %@", self, _subnodes);
}
CGPoint adjustedOrigin = subnodeLayout.position;
if (isfinite(adjustedOrigin.x) == NO) {
@ -2084,10 +2080,6 @@ static BOOL ShouldUseNewRenderingRange = YES;
}
if ([[self class] usesImplicitHierarchyManagement]) {
if (!_managedSubnodes) {
_managedSubnodes = [NSMutableArray array];
}
for (_ASDisplayNodePosition *position in _deletedSubnodes) {
[self _implicitlyRemoveSubnode:position.node atIndex:position.index];
}
@ -2100,6 +2092,12 @@ static BOOL ShouldUseNewRenderingRange = YES;
- (void)_implicitlyInsertSubnode:(ASDisplayNode *)node atIndex:(NSUInteger)idx
{
ASDisplayNodeAssertThreadAffinity(self);
if (!_managedSubnodes) {
_managedSubnodes = [NSMutableArray array];
}
ASDisplayNodeAssert(idx <= [_managedSubnodes count], @"index needs to be in range of the current managed subnodes");
if (idx == [_managedSubnodes count]) {
[_managedSubnodes addObject:node];
@ -2111,6 +2109,12 @@ static BOOL ShouldUseNewRenderingRange = YES;
- (void)_implicitlyRemoveSubnode:(ASDisplayNode *)node atIndex:(NSUInteger)idx
{
ASDisplayNodeAssertThreadAffinity(self);
if (!_managedSubnodes) {
_managedSubnodes = [NSMutableArray array];
}
[_managedSubnodes removeObjectAtIndex:idx];
[node removeFromSupernode];
}