Fix cell selection and highlighting in ASCollectionView

AsyncDisplayKit/ASCollectionView.mm

@@ -115,13 +115,22 @@ static BOOL _isInterceptedSelector(SEL sel)
 
 @implementation _ASCollectionViewCell
 
+- (void)setNode:(ASCellNode *)node
+{
+  _node = node;
+  node.selected = self.selected;
+  node.highlighted = self.highlighted;
+}
+
 - (void)setSelected:(BOOL)selected
 {
+  [super setSelected:selected];
   _node.selected = selected;
 }
 
 - (void)setHighlighted:(BOOL)highlighted
 {
+  [super setHighlighted:highlighted];
   _node.highlighted = highlighted;
 }
 
@@ -478,11 +487,8 @@ static BOOL _isInterceptedSelector(SEL sel)
   _ASCollectionViewCell *cell = [self dequeueReusableCellWithReuseIdentifier:reuseIdentifier forIndexPath:indexPath];
 
   ASCellNode *node = [_dataController nodeAtIndexPath:indexPath];
-  
-  [_rangeController configureContentView:cell.contentView forCellNode:node];
-  
   cell.node = node;
-  
+  [_rangeController configureContentView:cell.contentView forCellNode:node];
   return cell;
 }
 

examples/ASCollectionView/Sample.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		25FDEC921BF31EE700CEB123 /* ItemNode.m in Sources */ = {isa = PBXBuildFile; fileRef = 25FDEC911BF31EE700CEB123 /* ItemNode.m */; };
 		9B92C8811BC17D3000EE46B2 /* SupplementaryNode.m in Sources */ = {isa = PBXBuildFile; fileRef = 9B92C8801BC17D3000EE46B2 /* SupplementaryNode.m */; };
 		9BA2CEA11BB2579C00D18414 /* Launchboard.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9BA2CEA01BB2579C00D18414 /* Launchboard.storyboard */; };
 		AC3C4A641A11F47200143C57 /* main.m in Sources */ = {isa = PBXBuildFile; fileRef = AC3C4A631A11F47200143C57 /* main.m */; };
@@ -17,6 +18,8 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		25FDEC901BF31EE700CEB123 /* ItemNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ItemNode.h; sourceTree = "<group>"; };
+		25FDEC911BF31EE700CEB123 /* ItemNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ItemNode.m; sourceTree = "<group>"; };
 		2DBAEE96397BB913350C4530 /* Pods.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = Pods.debug.xcconfig; path = "Pods/Target Support Files/Pods/Pods.debug.xcconfig"; sourceTree = "<group>"; };
 		9B92C87F1BC17D3000EE46B2 /* SupplementaryNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SupplementaryNode.h; sourceTree = "<group>"; };
 		9B92C8801BC17D3000EE46B2 /* SupplementaryNode.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SupplementaryNode.m; sourceTree = "<group>"; };
@@ -83,6 +86,8 @@
 				AC3C4A611A11F47200143C57 /* Supporting Files */,
 				9B92C87F1BC17D3000EE46B2 /* SupplementaryNode.h */,
 				9B92C8801BC17D3000EE46B2 /* SupplementaryNode.m */,
+				25FDEC901BF31EE700CEB123 /* ItemNode.h */,
+				25FDEC911BF31EE700CEB123 /* ItemNode.m */,
 			);
 			indentWidth = 2;
 			path = Sample;
@@ -228,6 +233,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				25FDEC921BF31EE700CEB123 /* ItemNode.m in Sources */,
 				AC3C4A6A1A11F47200143C57 /* ViewController.m in Sources */,
 				9B92C8811BC17D3000EE46B2 /* SupplementaryNode.m in Sources */,
 				AC3C4A671A11F47200143C57 /* AppDelegate.m in Sources */,

examples/ASCollectionView/Sample/ItemNode.h

@@ -0,0 +1,18 @@
+/* This file provided by Facebook is for non-commercial testing and evaluation
+ * purposes only.  Facebook reserves all rights not expressly granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#import <AsyncDisplayKit/AsyncDisplayKit.h>
+
+@interface ItemNode : ASTextCellNode
+
+- (instancetype)initWithString:(NSString *)string;
+
+@end

examples/ASCollectionView/Sample/ItemNode.m

@@ -0,0 +1,49 @@
+/* This file provided by Facebook is for non-commercial testing and evaluation
+ * purposes only.  Facebook reserves all rights not expressly granted.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#import "ItemNode.h"
+
+@implementation ItemNode
+
+- (instancetype)initWithString:(NSString *)string
+{
+  self = [super init];
+  if (self != nil) {
+    self.text = string;
+    [self updateBackgroundColor];
+  }
+  return self;
+}
+
+- (void)updateBackgroundColor
+{
+  if (self.highlighted) {
+    self.backgroundColor = [UIColor grayColor];
+  } else if (self.selected) {
+    self.backgroundColor = [UIColor darkGrayColor];
+  } else {
+    self.backgroundColor = [UIColor lightGrayColor];
+  }
+}
+
+- (void)setSelected:(BOOL)selected
+{
+  [super setSelected:selected];
+  [self updateBackgroundColor];
+}
+
+- (void)setHighlighted:(BOOL)highlighted
+{
+  [super setHighlighted:highlighted];
+  [self updateBackgroundColor];
+}
+
+@end

examples/ASCollectionView/Sample/ViewController.m

@@ -13,6 +13,7 @@
 
 #import <AsyncDisplayKit/AsyncDisplayKit.h>
 #import "SupplementaryNode.h"
+#import "ItemNode.h"
 
 @interface ViewController () <ASCollectionViewDataSource, ASCollectionViewDelegateFlowLayout>
 {
@@ -78,11 +79,7 @@
 - (ASCellNode *)collectionView:(ASCollectionView *)collectionView nodeForItemAtIndexPath:(NSIndexPath *)indexPath
 {
   NSString *text = [NSString stringWithFormat:@"[%zd.%zd] says hi", indexPath.section, indexPath.item];
-  ASTextCellNode *node = [[ASTextCellNode alloc] init];
-  node.text = text;
-  node.backgroundColor = [UIColor lightGrayColor];
-  
-  return node;
+  return [[ItemNode alloc] initWithString:text];
 }
 
 - (ASCellNode *)collectionView:(ASCollectionView *)collectionView nodeForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath