Merge commit '7621e2f8dec938cf48181c8b10afc9b01f444e68' into beta

submodules/Display/Source/NavigationBarTransitionState.swift

@@ -0,0 +1,21 @@
+import Foundation
+import UIKit
+
+enum NavigationBarTransitionRole {
+    case top
+    case bottom
+}
+
+final class NavigationBarTransitionState {
+    weak var navigationBar: NavigationBar?
+    let transition: NavigationTransition
+    let role: NavigationBarTransitionRole
+    let progress: CGFloat
+    
+    init(navigationBar: NavigationBar, transition: NavigationTransition, role: NavigationBarTransitionRole, progress: CGFloat) {
+        self.navigationBar = navigationBar
+        self.transition = transition
+        self.role = role
+        self.progress = progress
+    }
+}