Supports UICollectionViewCompositionalLayout

Demo/Book.swift

@@ -22,6 +22,13 @@ let book = Book(title: "TextureSwiftSupport") {
   }
 
   Book.layerBacked()
+
+  if #available(iOS 13, *) {
+
+    BookPush(title: "CompositionalLayout") {
+      CollectionNodeCompositionalLayoutViewController()
+    }
+  }
 
   BookPush(title: "Transition") {
     TransitionLayoutViewController()

Demo/ViewControllers/CollectionNodeCompositionalLayoutViewController.swift

@@ -0,0 +1,77 @@
+import AsyncDisplayKit
+import TextureSwiftSupport
+
+@available(iOS 13, *)
+final class CollectionNodeCompositionalLayoutViewController: DisplayNodeViewController, ASCollectionDataSource {
+
+  let collectionNode: ASCollectionNode
+
+  override init() {
+
+    let group = NSCollectionLayoutGroup.vertical(
+      layoutSize: NSCollectionLayoutSize(
+        widthDimension: .fractionalWidth(1.0),
+        heightDimension: .estimated(1)
+      ),
+      subitems: [
+        NSCollectionLayoutItem(
+          layoutSize: NSCollectionLayoutSize(
+            widthDimension: .fractionalWidth(1.0),
+            heightDimension: .estimated(1)
+          )
+        )
+      ]
+    )
+
+    let section = NSCollectionLayoutSection(group: group)
+    let layout = UICollectionViewCompositionalLayout.init(section: section)
+
+    self.collectionNode = .init(frame: .zero, collectionViewLayout: layout)
+
+    super.init()
+
+    self.collectionNode.layoutInspector
+    self.collectionNode.dataSource = self
+  }
+
+  override func viewDidLoad() {
+    super.viewDidLoad()
+
+  }
+
+  func numberOfSections(in collectionNode: ASCollectionNode) -> Int {
+    return 1
+  }
+
+  func collectionNode(_ collectionNode: ASCollectionNode, numberOfItemsInSection section: Int) -> Int {
+    return 30
+  }
+
+  func collectionNode(_ collectionNode: ASCollectionNode, nodeBlockForItemAt indexPath: IndexPath) -> ASCellNodeBlock {
+    return {
+      Self.makeCell()
+    }
+  }
+
+  override func layoutSpecThatFits(_ constrainedSize: ASSizeRange) -> ASLayoutSpec {
+    LayoutSpec {
+      collectionNode
+    }
+  }
+
+  static func makeCell() -> ASCellNode {
+
+    let label = ASTextNode()
+    label.attributedText = "Hello".styled(.init())
+
+    return WrapperCellNode(
+      content: AnyDisplayNode { _, _ in
+        LayoutSpec {
+          label
+            .padding(10)
+        }
+      }
+    )
+
+  }
+}

TextureSwiftSupport.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		4B01A3EC2837A8660058F6B8 /* CollectionNodeCompositionalLayoutViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B01A3EB2837A8660058F6B8 /* CollectionNodeCompositionalLayoutViewController.swift */; };
 		4B086A462464434C0024F5A1 /* TextureSwiftSupport.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B086A452464434C0024F5A1 /* TextureSwiftSupport.swift */; };
 		4B15BCD82667D717006A0D04 /* Book.StyledEdgeNode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B15BCD72667D717006A0D04 /* Book.StyledEdgeNode.swift */; };
 		4B19E610244DD9F0009FD799 /* AnyDisplayNode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 4B19E60F244DD9F0009FD799 /* AnyDisplayNode.swift */; };
@@ -104,6 +105,7 @@
 		215C59DB7FDA718082B6AE43 /* Pods-TextureSwiftSupportTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-TextureSwiftSupportTests.release.xcconfig"; path = "Target Support Files/Pods-TextureSwiftSupportTests/Pods-TextureSwiftSupportTests.release.xcconfig"; sourceTree = "<group>"; };
 		36BB5D9261CA6C5AFDF8EB59 /* Pods-Demo.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Demo.release.xcconfig"; path = "Target Support Files/Pods-Demo/Pods-Demo.release.xcconfig"; sourceTree = "<group>"; };
 		3E7680D0CC6B4F2D180803E7 /* Pods-Demo-TextureSwiftSuppoprt.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Demo-TextureSwiftSuppoprt.release.xcconfig"; path = "Target Support Files/Pods-Demo-TextureSwiftSuppoprt/Pods-Demo-TextureSwiftSuppoprt.release.xcconfig"; sourceTree = "<group>"; };
+		4B01A3EB2837A8660058F6B8 /* CollectionNodeCompositionalLayoutViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CollectionNodeCompositionalLayoutViewController.swift; sourceTree = "<group>"; };
 		4B086A452464434C0024F5A1 /* TextureSwiftSupport.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextureSwiftSupport.swift; sourceTree = "<group>"; };
 		4B15BCD72667D717006A0D04 /* Book.StyledEdgeNode.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Book.StyledEdgeNode.swift; sourceTree = "<group>"; };
 		4B19E60F244DD9F0009FD799 /* AnyDisplayNode.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AnyDisplayNode.swift; sourceTree = "<group>"; };
@@ -446,6 +448,7 @@
 				4B6FA03A2468B6C900C21A53 /* CompositionCatalogViewController.swift */,
 				4B2A018225B6E76E00D7C188 /* RecursiveLayoutViewController.swift */,
 				4B28C83D264FEDF900C1ABA3 /* TransitionLayoutViewController.swift */,
+				4B01A3EB2837A8660058F6B8 /* CollectionNodeCompositionalLayoutViewController.swift */,
 			);
 			path = ViewControllers;
 			sourceTree = "<group>";
@@ -765,6 +768,7 @@
 				4B3C42D6266DCA4F00861ADD /* Book.TiledLayer.swift in Sources */,
 				4BFE5FE12663DE9400C5C032 /* RootContainerViewController.swift in Sources */,
 				4B7F1877266745FD002F9A82 /* Book.ImageNode.swift in Sources */,
+				4B01A3EC2837A8660058F6B8 /* CollectionNodeCompositionalLayoutViewController.swift in Sources */,
 				4B15BCD82667D717006A0D04 /* Book.StyledEdgeNode.swift in Sources */,
 				4B28C83E264FEDF900C1ABA3 /* TransitionLayoutViewController.swift in Sources */,
 				4BC85C1026EFF1B6003BAEAE /* Book.LayerBacking.swift in Sources */,