Put document controls view in a scroll view

App/Document Controls UI/DocumentControlItemView.swift

@@ -7,7 +7,7 @@
 
 import UIKit
 
-class DocumentControlView: UIControl
+class DocumentControlItemView: UIControl
 {
     static public let controlHeight = CGFloat(48.0)
     

App/Document Controls UI/DocumentControlViewController.swift

@@ -9,14 +9,14 @@ import UIKit
 
 class DocumentControlViewController: UIViewController
 {
-    let documentControlView = StackView<DocumentControlView>(dimension: .vertical)
+    let documentControlsView = DocumentControlsView()
     let fontSizeAdjustView = FontSizeAdjustView()
-    let findOnPageControlView = DocumentControlView()
+    let findOnPageControlView = DocumentControlItemView()
     let navigationControlView = NavigationControlsView()
-    let settingsView = DocumentControlView()
-    let readabilityView = DocumentControlView()
-    let darkModeView = DocumentControlView()
-    let archiveView = DocumentControlView()
+    let settingsView = DocumentControlItemView()
+    let readabilityView = DocumentControlItemView()
+    let darkModeView = DocumentControlItemView()
+    let archiveView = DocumentControlItemView()
     
     var observations: [NSKeyValueObservation] = []
     
@@ -45,17 +45,17 @@ class DocumentControlViewController: UIViewController
         
         darkModeView.imageView.image = DarkModeControls.buttonImage(forDarkModeState: darkModeEnabled)
         
-        documentControlView.addArrangedSubview(navigationControlView)
-        documentControlView.addArrangedSubview(fontSizeAdjustView)
-        documentControlView.addArrangedSubview(findOnPageControlView)
-        documentControlView.addArrangedSubview(darkModeView)
-        documentControlView.addArrangedSubview(readabilityView)
-        documentControlView.addArrangedSubview(archiveView)
+        documentControlsView.stackView.addArrangedSubview(navigationControlView)
+        documentControlsView.stackView.addArrangedSubview(fontSizeAdjustView)
+        documentControlsView.stackView.addArrangedSubview(findOnPageControlView)
+        documentControlsView.stackView.addArrangedSubview(darkModeView)
+        documentControlsView.stackView.addArrangedSubview(readabilityView)
+        documentControlsView.stackView.addArrangedSubview(archiveView)
         
-        documentControlView.addArrangedSubview(settingsView)
+        documentControlsView.stackView.addArrangedSubview(settingsView)
         
-        for (i, view) in documentControlView.arrangedSubviews.enumerated() {
-            view.drawsBottomSeparator = (i < documentControlView.arrangedSubviews.count - 1)
+        for (i, view) in documentControlsView.stackView.arrangedSubviews.enumerated() {
+            view.drawsBottomSeparator = (i < documentControlsView.stackView.arrangedSubviews.count - 1)
         }
     }
     
@@ -64,11 +64,11 @@ class DocumentControlViewController: UIViewController
     }
     
     override func loadView() {
-        self.view = documentControlView
+        self.view = documentControlsView
     }
     
     override var preferredContentSize: CGSize {
-        get { documentControlView.sizeThatFits(CGSize(width: Self.preferredWidth, height: -1)) }
+        get { documentControlsView.stackView.sizeThatFits(CGSize(width: Self.preferredWidth, height: -1)) }
         set {}
     }
 }

App/Document Controls UI/DocumentControlsView.swift

@@ -0,0 +1,29 @@
+//
+//  DocumentControlsView.swift
+//  App
+//
+//  Created by James Magahern on 4/28/21.
+//
+
+import UIKit
+
+class DocumentControlsView : UIScrollView
+{
+    public let stackView = StackView<DocumentControlItemView>(dimension: .vertical)
+    
+    convenience init() {
+        self.init(frame: .zero)
+        addSubview(stackView)
+    }
+    
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        
+        let stackViewSize = stackView.sizeThatFits(CGSize(width: bounds.width, height: -1))
+        stackView.frame = CGRect(
+            origin: .zero, size: stackViewSize
+        )
+        
+        contentSize = stackViewSize
+    }
+}

App/Document Controls UI/FontSizeAdjustView.swift

@@ -7,7 +7,7 @@
 
 import UIKit
 
-class FontSizeAdjustView: DocumentControlView
+class FontSizeAdjustView: DocumentControlItemView
 {
     let decreaseSizeButton = UIButton(frame: .zero)
     let increaseSizeButton = UIButton(frame: .zero)

App/Document Controls UI/NavigationControlsView.swift

@@ -7,7 +7,7 @@
 
 import UIKit
 
-class NavigationControlsView: DocumentControlView
+class NavigationControlsView: DocumentControlItemView
 {
     let backButton = UIButton(frame: .zero)
     let forwardButton = UIButton(frame: .zero)