UI improvements

Session/Calls/CallVC.swift

@@ -18,6 +18,29 @@ final class CallVC : UIViewController, WebRTCSessionDelegate {
         return RTCCameraVideoCapturer(delegate: webRTCSession.localVideoSource)
     }()
     
+    // MARK: UI Components
+    private lazy var fadeView: UIView = {
+        let result = UIView()
+        let height: CGFloat = 64
+        var frame = UIScreen.main.bounds
+        frame.size.height = height
+        let layer = CAGradientLayer()
+        layer.frame = frame
+        layer.colors = [ UIColor(hex: 0x000000).withAlphaComponent(0.4).cgColor, UIColor(hex: 0x000000).withAlphaComponent(0).cgColor ]
+        result.layer.insertSublayer(layer, at: 0)
+        result.set(.height, to: height)
+        return result
+    }()
+    
+    private lazy var closeButton: UIButton = {
+        let result = UIButton(type: .custom)
+        let image = UIImage(named: "X")!.withTint(.white)
+        result.setImage(image, for: UIControl.State.normal)
+        result.set(.width, to: 60)
+        result.set(.height, to: 60)
+        return result
+    }()
+    
     // MARK: Mode
     enum Mode {
         case offer
@@ -69,6 +92,15 @@ final class CallVC : UIViewController, WebRTCSessionDelegate {
         localVideoView.pin(.right, to: .right, of: view, withInset: -Values.largeSpacing)
         let bottomMargin = UIApplication.shared.keyWindow!.safeAreaInsets.bottom + Values.largeSpacing
         localVideoView.pin(.bottom, to: .bottom, of: view, withInset: -bottomMargin)
+        // Fade view
+        view.addSubview(fadeView)
+        fadeView.translatesAutoresizingMaskIntoConstraints = false
+        fadeView.pin([ UIView.HorizontalEdge.left, UIView.VerticalEdge.top, UIView.HorizontalEdge.right ], to: view)
+        // Close button
+        view.addSubview(closeButton)
+        closeButton.translatesAutoresizingMaskIntoConstraints = false
+        closeButton.pin(.left, to: .left, of: view)
+        closeButton.pin(.top, to: .top, of: view, withInset: 32)
     }
     
     override func viewDidAppear(_ animated: Bool) {
@@ -84,4 +116,9 @@ final class CallVC : UIViewController, WebRTCSessionDelegate {
     deinit {
         WebRTCSession.current = nil
     }
+    
+    // MARK: Interaction
+    @objc private func close() {
+        presentingViewController?.dismiss(animated: true, completion: nil)
+    }
 }

Session/Conversations/ConversationVC+Interaction.swift

@@ -29,7 +29,9 @@ extension ConversationVC : InputViewDelegate, MessageCellDelegate, ContextMenuAc
     @objc func startCall() {
         guard let contactSessionID = (thread as? TSContactThread)?.contactSessionID() else { return }
         let callVC = CallVC(for: contactSessionID, mode: .offer)
-        navigationController!.pushViewController(callVC, animated: true, completion: nil)
+        callVC.modalPresentationStyle = .overFullScreen
+        callVC.modalTransitionStyle = .crossDissolve
+        present(callVC, animated: true, completion: nil)
     }
 
     // MARK: Blocking

Session/Meta/AppDelegate.swift

@@ -13,6 +13,8 @@ extension AppDelegate {
                 alert.addAction(UIAlertAction(title: "Accept", style: .default, handler: { _ in
                     let callVC = CallVC(for: message.sender!, mode: .answer(sdp: sdp))
                     presentingVC.dismiss(animated: true) {
+                        callVC.modalPresentationStyle = .overFullScreen
+                        callVC.modalTransitionStyle = .crossDissolve
                         presentingVC.present(callVC, animated: true, completion: nil)
                     }
                 }))
@@ -65,17 +67,16 @@ extension AppDelegate {
     
     @objc func getAppModeOrSystemDefault() -> AppMode {
         let userDefaults = UserDefaults.standard
-
+        if userDefaults.dictionaryRepresentation().keys.contains("appMode") {
-        guard userDefaults.dictionaryRepresentation().keys.contains("appMode") else {
+            let mode = userDefaults.integer(forKey: "appMode")
+            return AppMode(rawValue: mode) ?? .light
+        } else {
             if #available(iOS 13.0, *) {
                 return UITraitCollection.current.userInterfaceStyle == .dark ? .dark : .light
             } else {
                 return .light
             }
         }
-        
-        let mode = userDefaults.integer(forKey: "appMode")
-        return AppMode(rawValue: mode) ?? .light
     }
     
 }