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[ASDisplayNode] added asyncTraitCollectionDidChange method (#1831)

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Subclasses can override this method to react to a trait collection change
This commit is contained in:
ricky
2016-06-30 19:45:29 -07:00
committed by appleguy
parent 8804342a98
commit 8c3025bb12
3 changed files with 23 additions and 1 deletions
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2
AsyncDisplayKit.xcodeproj/project.pbxproj
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@@ -368,6 +368,7 @@
9C8898BB1C738B9800D6B02E /* ASTextKitFontSizeAdjuster.mm in Sources */ = {isa = PBXBuildFile; fileRef = 9C8898BA1C738B9800D6B02E /* ASTextKitFontSizeAdjuster.mm */; };
9C8898BC1C738BA800D6B02E /* ASTextKitFontSizeAdjuster.mm in Sources */ = {isa = PBXBuildFile; fileRef = 9C8898BA1C738B9800D6B02E /* ASTextKitFontSizeAdjuster.mm */; };
9C8898BD1C738BB800D6B02E /* ASTextKitFontSizeAdjuster.h in Headers */ = {isa = PBXBuildFile; fileRef = A32FEDD31C501B6A004F642A /* ASTextKitFontSizeAdjuster.h */; };
9CC606651D24DF9E006581A0 /* NSIndexSet+ASHelpers.m in Sources */ = {isa = PBXBuildFile; fileRef = CC4981BB1D1C7F65004E13CC /* NSIndexSet+ASHelpers.m */; };
9CDC18CC1B910E12004965E2 /* ASLayoutablePrivate.h in Headers */ = {isa = PBXBuildFile; fileRef = 9CDC18CB1B910E12004965E2 /* ASLayoutablePrivate.h */; settings = {ATTRIBUTES = (Public, ); }; };
9CDC18CD1B910E12004965E2 /* ASLayoutablePrivate.h in Headers */ = {isa = PBXBuildFile; fileRef = 9CDC18CB1B910E12004965E2 /* ASLayoutablePrivate.h */; settings = {ATTRIBUTES = (Public, ); }; };
9CFFC6BE1CCAC52B006A6476 /* ASEnvironment.mm in Sources */ = {isa = PBXBuildFile; fileRef = 9CFFC6BD1CCAC52B006A6476 /* ASEnvironment.mm */; };
@@ -2276,6 +2277,7 @@
CC3B208C1C3F7A5400798563 /* ASWeakSet.m in Sources */,
B350621C1B010EFD0018CF92 /* ASFlowLayoutController.mm in Sources */,
B350621E1B010EFD0018CF92 /* ASHighlightOverlayLayer.mm in Sources */,
9CC606651D24DF9E006581A0 /* NSIndexSet+ASHelpers.m in Sources */,
92074A641CC8BA1900918F75 /* ASImageNode+tvOS.m in Sources */,
B35062541B010EFD0018CF92 /* ASImageNode+CGExtras.m in Sources */,
68355B401CB57A69001D4E68 /* ASImageContainerProtocolCategories.m in Sources */,

7
AsyncDisplayKit/ASDisplayNode+Subclasses.h
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@@ -465,6 +465,13 @@ NS_ASSUME_NONNULL_BEGIN
*/
- (NSString *)descriptionForRecursiveDescription;
/**
* @abstract Called when the node's ASTraitCollection changes
*
* @discussion Subclasses can override this method to react to a trait collection change.
*/
- (void)asyncTraitCollectionDidChange;
@end
#define ASDisplayNodeAssertThreadAffinity(viewNode) ASDisplayNodeAssert(!viewNode || ASDisplayNodeThreadIsMain() || !(viewNode).nodeLoaded, @"Incorrect display node thread affinity - this method should not be called off the main thread after the ASDisplayNode's view or layer have been created")

13
AsyncDisplayKit/ASDisplayNode.mm
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@@ -2755,7 +2755,12 @@ static const char *ASDisplayNodeDrawingPriorityKey = "ASDrawingPriority";
- (void)setEnvironmentState:(ASEnvironmentState)environmentState
{
ASEnvironmentTraitCollection oldTraitCollection = _environmentState.environmentTraitCollection;
_environmentState = environmentState;
if (ASEnvironmentTraitCollectionIsEqualToASEnvironmentTraitCollection(oldTraitCollection, _environmentState.environmentTraitCollection) == NO) {
[self asyncTraitCollectionDidChange];
}
}
- (ASDisplayNode *)parent
@@ -2785,7 +2790,10 @@ static const char *ASDisplayNodeDrawingPriorityKey = "ASDrawingPriority";
- (void)setEnvironmentTraitCollection:(ASEnvironmentTraitCollection)environmentTraitCollection
{
if (ASEnvironmentTraitCollectionIsEqualToASEnvironmentTraitCollection(environmentTraitCollection, _environmentState.environmentTraitCollection) == NO) {
_environmentState.environmentTraitCollection = environmentTraitCollection;
[self asyncTraitCollectionDidChange];
}
}
ASEnvironmentLayoutOptionsForwarding
@@ -2797,6 +2805,11 @@ ASEnvironmentLayoutExtensibilityForwarding
return [ASTraitCollection traitCollectionWithASEnvironmentTraitCollection:self.environmentTraitCollection];
}
- (void)asyncTraitCollectionDidChange
{
}
#if TARGET_OS_TV
#pragma mark - UIFocusEnvironment Protocol (tvOS)