Adds ASVisualEffectNode which is a wrapper around UIVisualEffectView

AsyncDisplayKit.xcodeproj/project.pbxproj

@@ -8,7 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		044284FD1BAA365100D16268 /* UICollectionViewLayout+ASConvenience.m in Sources */ = {isa = PBXBuildFile; fileRef = 205F0E0E1B371875007741D0 /* UICollectionViewLayout+ASConvenience.m */; };
-		044284FE1BAA387800D16268 /* ASStackLayoutSpecUtilities.h in Headers */ = {isa = PBXBuildFile; fileRef = ACF6ED461B17847A00DA7C62 /* ASStackLayoutSpecUtilities.h */; };
+		044284FE1BAA387800D16268 /* ASStackLayoutSpecUtilities.h in Headers */ = {isa = PBXBuildFile; fileRef = ACF6ED461B17847A00DA7C62 /* ASStackLayoutSpecUtilities.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		044284FF1BAA3BD600D16268 /* UICollectionViewLayout+ASConvenience.h in Headers */ = {isa = PBXBuildFile; fileRef = 205F0E0D1B371875007741D0 /* UICollectionViewLayout+ASConvenience.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		044285071BAA63FE00D16268 /* ASBatchFetching.h in Headers */ = {isa = PBXBuildFile; fileRef = 044285051BAA63FE00D16268 /* ASBatchFetching.h */; };
 		044285081BAA63FE00D16268 /* ASBatchFetching.h in Headers */ = {isa = PBXBuildFile; fileRef = 044285051BAA63FE00D16268 /* ASBatchFetching.h */; };
@@ -398,6 +398,10 @@
 		B350625D1B0111740018CF92 /* Photos.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 051943141A1575670030A7D0 /* Photos.framework */; };
 		B350625E1B0111780018CF92 /* AssetsLibrary.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 051943121A1575630030A7D0 /* AssetsLibrary.framework */; };
 		B350625F1B0111800018CF92 /* Foundation.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 058D09AF195D04C000B7D73C /* Foundation.framework */; };
+		B36D5B781BF38EF100AFFD83 /* ASVisualEffectNode.h in Headers */ = {isa = PBXBuildFile; fileRef = B36D5B761BF38EF100AFFD83 /* ASVisualEffectNode.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		B36D5B791BF38EF100AFFD83 /* ASVisualEffectNode.mm in Sources */ = {isa = PBXBuildFile; fileRef = B36D5B771BF38EF100AFFD83 /* ASVisualEffectNode.mm */; };
+		B37B23C91BF5A7F000CC59F6 /* ASVisualEffectNode.mm in Sources */ = {isa = PBXBuildFile; fileRef = B36D5B771BF38EF100AFFD83 /* ASVisualEffectNode.mm */; };
+		B37B23CA1BF5B7B900CC59F6 /* ASVisualEffectNode.h in Headers */ = {isa = PBXBuildFile; fileRef = B36D5B761BF38EF100AFFD83 /* ASVisualEffectNode.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		CC7FD9DE1BB5E962005CCB2B /* ASPhotosFrameworkImageRequest.h in Headers */ = {isa = PBXBuildFile; fileRef = CC7FD9DC1BB5E962005CCB2B /* ASPhotosFrameworkImageRequest.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		CC7FD9DF1BB5E962005CCB2B /* ASPhotosFrameworkImageRequest.m in Sources */ = {isa = PBXBuildFile; fileRef = CC7FD9DD1BB5E962005CCB2B /* ASPhotosFrameworkImageRequest.m */; };
 		CC7FD9E11BB5F750005CCB2B /* ASPhotosFrameworkImageRequestTests.m in Sources */ = {isa = PBXBuildFile; fileRef = CC7FD9E01BB5F750005CCB2B /* ASPhotosFrameworkImageRequestTests.m */; };
@@ -667,6 +671,8 @@
 		B0F880591BEAEC7500D17647 /* ASTableNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASTableNode.m; sourceTree = "<group>"; };
 		B35061DA1B010EDF0018CF92 /* AsyncDisplayKit.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = AsyncDisplayKit.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		B35061DD1B010EDF0018CF92 /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; name = Info.plist; path = "../AsyncDisplayKit-iOS/Info.plist"; sourceTree = "<group>"; };
+		B36D5B761BF38EF100AFFD83 /* ASVisualEffectNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASVisualEffectNode.h; sourceTree = "<group>"; };
+		B36D5B771BF38EF100AFFD83 /* ASVisualEffectNode.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; path = ASVisualEffectNode.mm; sourceTree = "<group>"; };
 		CC7FD9DC1BB5E962005CCB2B /* ASPhotosFrameworkImageRequest.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ASPhotosFrameworkImageRequest.h; sourceTree = "<group>"; };
 		CC7FD9DD1BB5E962005CCB2B /* ASPhotosFrameworkImageRequest.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASPhotosFrameworkImageRequest.m; sourceTree = "<group>"; };
 		CC7FD9E01BB5F750005CCB2B /* ASPhotosFrameworkImageRequestTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ASPhotosFrameworkImageRequestTests.m; sourceTree = "<group>"; };
@@ -824,6 +830,8 @@
 				058D09E0195D050800B7D73C /* ASTextNode.mm */,
 				ACC945A81BA9E7A0005E1FB8 /* ASViewController.h */,
 				ACC945AA1BA9E7C1005E1FB8 /* ASViewController.m */,
+				B36D5B761BF38EF100AFFD83 /* ASVisualEffectNode.h */,
+				B36D5B771BF38EF100AFFD83 /* ASVisualEffectNode.mm */,
 				6BDC61F51978FEA400E50D21 /* AsyncDisplayKit.h */,
 				058D09E1195D050800B7D73C /* Details */,
 				058D0A01195D050800B7D73C /* Private */,
@@ -1187,6 +1195,7 @@
 				058D0A7F195D05F900B7D73C /* ASSentinel.h in Headers */,
 				9C8221951BA237B80037F19A /* ASStackBaselinePositionedLayout.h in Headers */,
 				9C49C36F1B853957000B0DD5 /* ASStackLayoutable.h in Headers */,
+				B36D5B781BF38EF100AFFD83 /* ASVisualEffectNode.h in Headers */,
 				AC21EC101B3D0BF600C8B19A /* ASStackLayoutDefines.h in Headers */,
 				CC7FD9DE1BB5E962005CCB2B /* ASPhotosFrameworkImageRequest.h in Headers */,
 				ACF6ED2F1B17843500DA7C62 /* ASStackLayoutSpec.h in Headers */,
@@ -1299,8 +1308,9 @@
 				34EFC7701B701CFA00AD841F /* ASStackLayoutDefines.h in Headers */,
 				CC7FD9E21BB603FF005CCB2B /* ASPhotosFrameworkImageRequest.h in Headers */,
 				34EFC7711B701CFF00AD841F /* ASStackLayoutSpec.h in Headers */,
-				2767E9411BB19BD600EA9B77 /* ASViewController.h in Headers */,
 				044284FE1BAA387800D16268 /* ASStackLayoutSpecUtilities.h in Headers */,
+				2767E9411BB19BD600EA9B77 /* ASViewController.h in Headers */,
+				B37B23CA1BF5B7B900CC59F6 /* ASVisualEffectNode.h in Headers */,
 				34EFC7751B701D2400AD841F /* ASStackPositionedLayout.h in Headers */,
 				34EFC7771B701D2D00AD841F /* ASStackUnpositionedLayout.h in Headers */,
 				9C6BB3B31B8CC9C200F13F52 /* ASStaticLayoutable.h in Headers */,
@@ -1407,6 +1417,9 @@
 		058D09A4195D04C000B7D73C /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
+				KnownAssetTags = (
+					New,
+				);
 				LastUpgradeCheck = 0710;
 				ORGANIZATIONNAME = Facebook;
 				TargetAttributes = {
@@ -1545,6 +1558,7 @@
 				0549634A1A1EA066000F8E56 /* ASBasicImageDownloader.mm in Sources */,
 				299DA1AA1A828D2900162D41 /* ASBatchContext.mm in Sources */,
 				AC6456091B0A335000CF11B8 /* ASCellNode.m in Sources */,
+				B36D5B791BF38EF100AFFD83 /* ASVisualEffectNode.mm in Sources */,
 				ACF6ED1D1B17843500DA7C62 /* ASCenterLayoutSpec.mm in Sources */,
 				18C2ED801B9B7DE800F627B3 /* ASCollectionNode.m in Sources */,
 				AC3C4A521A1139C100143C57 /* ASCollectionView.mm in Sources */,
@@ -1719,6 +1733,7 @@
 				B35062331B010EFD0018CF92 /* ASTextNodeShadower.m in Sources */,
 				B35062351B010EFD0018CF92 /* ASTextNodeTextKitHelpers.mm in Sources */,
 				B35062381B010EFD0018CF92 /* ASTextNodeWordKerner.m in Sources */,
+				B37B23C91BF5A7F000CC59F6 /* ASVisualEffectNode.mm in Sources */,
 				509E68661B3AEDD7009B9150 /* CGRect+ASConvenience.m in Sources */,
 				34566CB31BC1213700715E6B /* ASPhotosFrameworkImageRequest.m in Sources */,
 				B350623B1B010EFD0018CF92 /* NSMutableAttributedString+TextKitAdditions.m in Sources */,

AsyncDisplayKit/ASDisplayNode.h

@@ -506,6 +506,14 @@ typedef void (^ASDisplayNodeDidLoadBlock)(ASDisplayNode *node);
  */
 - (CGRect)convertRect:(CGRect)rect fromNode:(ASDisplayNode *)node;
 
+/**
+ * @abstract Returns the view by which this node's subnode views get added to.
+ *
+ * @discussion This property can be overriden in a subclass for nodes whose
+ * backing views expect subviews to be added to a separate view.
+ **/
+@property (nonatomic, readonly) UIView *parentViewForSubnodeViews;
+
 @end
 
 

AsyncDisplayKit/ASDisplayNode.mm

@@ -1215,15 +1215,14 @@ - (void)insertSubnode:(ASDisplayNode *)subnode atIndex:(NSInteger)idx
   [self _insertSubnode:subnode atSubnodeIndex:idx sublayerIndex:sublayerIndex andRemoveSubnode:nil];
 }
 
-
 - (void)_addSubnodeSubviewOrSublayer:(ASDisplayNode *)subnode
 {
   ASDisplayNodeAssertMainThread();
   ASDisplayNodeAssert(self.nodeLoaded, @"_addSubnodeSubview: should never be called before our own view is created");
 
   BOOL canUseViewAPI = !self.isLayerBacked && !subnode.isLayerBacked;
   if (canUseViewAPI) {
-    [_view addSubview:subnode.view];
+    [self.parentViewForSubnodeViews addSubview:subnode.view];
   } else {
     // Disallow subviews in a layer-backed node
     ASDisplayNodeAssert(subnode.isLayerBacked, @"Cannot add a subview to a layer-backed node; only sublayers permitted.");
@@ -2048,6 +2047,13 @@ - (void)_enqueueAsyncSizingWithSentinel:(ASSentinel *)sentinel completion:(void(
   return self;
 }
 
+- (UIView *)parentViewForSubnodeViews
+{
+  ASDisplayNodeAssert(!_flags.layerBacked, @"Call to -parentViewForSubnodeViews undefined on layer-backed nodes");
+  ASDN::MutexLocker l(_propertyLock);
+  return _view;
+}
+
 @end
 
 @implementation ASDisplayNode (Debugging)

AsyncDisplayKit/ASVisualEffectNode.h

@@ -0,0 +1,43 @@
+/*
+ *  Copyright (c) 2014-present, Facebook, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  LICENSE file in the root directory of this source tree. An additional grant
+ *  of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+
+#import <AsyncDisplayKit/AsyncDisplayKit.h>
+
+/**
+ * This node adds a visual effect to any background for iOS8 and above.
+ * Use this with an ASBackgroundLayoutSpec to layer it behind another node.
+ *
+ * Notes: If the node has trouble rendering you may have to send it's view
+ * to the back on `didLoad`.
+ *
+ * Future plans: Child nodes should have their views added to the visualEffectView's
+ * contentView and not it's subview.
+ **/
+NS_CLASS_AVAILABLE_IOS(8_0) @interface ASVisualEffectNode : ASDisplayNode
+
+/**
+ * Initialize with a visual effect.
+ * @param visualEffect The UIVisualEffect which will be used to create the
+ * UIVisualEffectView
+ **/
+- (instancetype)initWithEffect:(UIVisualEffect*)visualEffect;
+
+/**
+ * Return a ASVisualEffectNode with a blur effect.
+ * @param effectStyle The style of blur to use to create the blur effect.
+ **/
++ (instancetype)blurNodeWithEffect:(UIBlurEffectStyle)effectStyle;
+
+/**
+ * Returns the node's view as a UIVisualEffectView
+ **/
+@property (nonatomic, readonly) UIVisualEffectView *visualEffectView;
+
+@end

AsyncDisplayKit/ASVisualEffectNode.mm

@@ -0,0 +1,56 @@
+/*
+ *  Copyright (c) 2014-present, Facebook, Inc.
+ *  All rights reserved.
+ *
+ *  This source code is licensed under the BSD-style license found in the
+ *  LICENSE file in the root directory of this source tree. An additional grant
+ *  of patent rights can be found in the PATENTS file in the same directory.
+ *
+ */
+
+#import "ASVisualEffectNode.h"
+
+#import "ASThread.h"
+
+@interface ASVisualEffectNode ()
+{
+  ASDN::RecursiveMutex _propertyLock;
+}
+@end
+
+@implementation ASVisualEffectNode
+
++ (instancetype)blurNodeWithEffect:(UIBlurEffectStyle)effectStyle
+{
+  UIBlurEffect *blurEffect = [UIBlurEffect effectWithStyle:effectStyle];
+  return [[self alloc] initWithEffect:blurEffect];
+}
+
+- (instancetype)initWithEffect:(UIVisualEffect*)visualEffect
+{
+  return [self initWithViewBlock:^UIView *{
+    _visualEffectView = [[UIVisualEffectView alloc] initWithEffect:visualEffect];
+    _visualEffectView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
+    return _visualEffectView;
+  }];
+}
+
+- (instancetype)initWithLayerBlock:(ASDisplayNodeLayerBlock)viewBlock didLoadBlock:(ASDisplayNodeDidLoadBlock)didLoadBlock
+{
+  ASDisplayNodeAssertNotSupported();
+  return nil;
+}
+
+- (void)setLayerBacked:(BOOL)layerBacked
+{
+  // ASRangeController expects ASVisualEffectNode to be view-backed.  (Layer-backing is supported on ASCellNode subnodes.)
+  ASDisplayNodeAssert(!layerBacked, @"ASVisualEffectNode does not support layer-backing.");
+}
+
+- (UIView *)parentViewForSubnodeViews
+{
+  ASDN::MutexLocker l(_propertyLock);
+  return self.visualEffectView.contentView;
+}
+
+@end

AsyncDisplayKit/AsyncDisplayKit.h

@@ -25,8 +25,8 @@
 #import <AsyncDisplayKit/ASCollectionView.h>
 #import <AsyncDisplayKit/ASCollectionNode.h>
 #import <AsyncDisplayKit/ASCellNode.h>
-
 #import <AsyncDisplayKit/ASScrollNode.h>
+#import <AsyncDisplayKit/ASVisualEffectNode.h>
 
 #import <AsyncDisplayKit/ASViewController.h>
 

Podfile.lock

@@ -10,4 +10,4 @@ SPEC CHECKSUMS:
   FBSnapshotTestCase: 3dc3899168747a0319c5278f5b3445c13a6532dd
   OCMock: a6a7dc0e3997fb9f35d99f72528698ebf60d64f2
 
-COCOAPODS: 0.38.2
+COCOAPODS: 0.39.0