Autocomplete: tweaks to view hierarchy

App/Autocomplete/AutocompleteViewController.swift

@@ -30,6 +30,8 @@ class AutocompleteViewController: UIViewController, UICollectionViewDelegate
     }
     
     public let collectionView: UICollectionView
+    
+    private let autocompleteView: AutocompleteView
     private let dataSource: UICollectionViewDiffableDataSource<Section, HistoryItem>
     
     init() {
@@ -49,6 +51,8 @@ class AutocompleteViewController: UIViewController, UICollectionViewDelegate
             collectionView.dequeueConfiguredReusableCell(using: cellRegistry, for: indexPath, item: item)
         })
         
+        autocompleteView = AutocompleteView(collectionView: collectionView)
+        
         super.init(nibName: nil, bundle: nil)
         
         collectionView.delegate = self
@@ -58,7 +62,7 @@ class AutocompleteViewController: UIViewController, UICollectionViewDelegate
     required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
     
     override func loadView() {
-        self.view = collectionView
+        self.view = autocompleteView
     }
     
     // MARK: UICollectionViewDelegate
@@ -70,4 +74,24 @@ class AutocompleteViewController: UIViewController, UICollectionViewDelegate
             delegate?.autocompleteController(self, didSelectHistoryItem: item)
         }
     }
+    
+    private class AutocompleteView: UIView {
+        let collectionView: UICollectionView
+        
+        init(collectionView: UICollectionView) {
+            self.collectionView = collectionView
+            super.init(frame: .zero)
+            
+            addSubview(collectionView)
+        }
+        
+        required init?(coder: NSCoder) {
+            fatalError("init(coder:) has not been implemented")
+        }
+        
+        override func layoutSubviews() {
+            super.layoutSubviews()
+            collectionView.frame = bounds
+        }
+    }
 }

App/Browser View/BrowserView.swift

@@ -17,7 +17,7 @@ class BrowserView: UIView
         didSet { addSubview(toolbarView!) }
     }
     
-    var autocompleteView: UICollectionView? {
+    var autocompleteView: UIView? {
         didSet {
             addSubview(autocompleteView!)
             if let toolbarView = toolbarView {
@@ -118,13 +118,15 @@ class BrowserView: UIView
         if let autocompleteView = autocompleteView {
             // Compact: autocomplete view takes the space of the webview
             autocompleteView.frame = bounds.inset(by: webViewContentInset)
+            
             if traitCollection.horizontalSizeClass == .regular {
                 // Regular: shows up just underneath the url bar
                 autocompleteView.layer.shadowColor = UIColor.black.cgColor
                 autocompleteView.layer.shadowOffset = CGSize(width: 0.0, height: 1.0)
-                autocompleteView.layer.shadowRadius = 3.0
+                autocompleteView.layer.shadowRadius = 8.0
-                autocompleteView.layer.shadowOpacity = 0.8
+                autocompleteView.layer.shadowOpacity = 0.6
                 autocompleteView.layer.cornerRadius = 8.0
+                autocompleteView.layer.masksToBounds = true
                 
                 if let toolbarView = toolbarView, let urlBar = toolbarView.urlBar {
                     let urlFrame = self.convert(urlBar.frame, from: urlBar.superview)

App/Browser View/BrowserViewController.swift

@@ -208,7 +208,7 @@ class BrowserViewController: UIViewController, WKNavigationDelegate, WKUIDelegat
         browserView.webView = webView
         
         // Autocomplete view
-        browserView.autocompleteView = autocompleteViewController.collectionView
+        browserView.autocompleteView = autocompleteViewController.view
         
         // Load progress
         updateLoadProgress(forWebView: webView)