Another attempt to fix empty URL bar

App/Titlebar and URL Bar/ToolbarView.swift

@@ -9,9 +9,18 @@ import UIKit
 
 class ToolbarView: UIView
 {
-    var urlBar: URLBar? { didSet { containerView.addSubview(urlBar!) } }
+    var urlBar: URLBar? {
+        didSet {
+            guard let urlBar else { return }
+            containerView.addSubview(urlBar)
+            
+            urlBar.textField.addAction(.init(handler: { [unowned self] _ in
+                layoutLatch.activate()
+            }), for: [ .editingDidBegin, .editingDidEnd ])
+        }
+    }
     
-    var cancelButtonVisible: Bool = false { didSet { layoutSubviews() } }
+    var cancelButtonVisible: Bool = false { didSet { setNeedsLayout() } }
     
     let containerView = UIView(frame: .zero)
     let backgroundView = GradientView(direction: .vertical, colors: [
@@ -23,6 +32,9 @@ class ToolbarView: UIView
     let leadingButtonsView = ToolbarButtonContainerView(frame: .zero)
     let trailingButtonsView = ToolbarButtonContainerView(frame: .zero)
     
+    // Something I'm sure I'll regret: to ensure animation with the keyboard, latch layout until we get the right signal.
+    lazy var layoutLatch = LayoutLatch(self)
+    
     convenience init()
     {
         self.init(frame: .zero)
@@ -54,6 +66,7 @@ class ToolbarView: UIView
     
     override func layoutSubviews()
     {
+        guard !layoutLatch.latched else { return }
         super.layoutSubviews()
         
         let shadowPath = UIBezierPath(rect: bounds)