Respond to CR.

// FREEBIE

Signal/src/call/CallService.swift

@@ -251,15 +251,15 @@ protocol CallServiceObserver: class {
     }
 
     class func presentCallInterstitialNotificationName() -> String {
-        return  "PresentCallInterstitialNotification"
+        return  "CallServicePresentCallInterstitialNotification"
     }
 
     class func dismissCallInterstitialNotificationName() -> String {
-        return  "DismissCallInterstitialNotification"
+        return  "CallServiceDismissCallInterstitialNotification"
     }
 
     class func callWasCancelledByInterstitialNotificationName() -> String {
-        return  "CallWasCancelledByInterstitialNotification"
+        return  "CallServiceCallWasCancelledByInterstitialNotification"
     }
 
     // MARK: - Service Actions

Signal/src/call/OutboundCallInitiator.swift

@@ -38,10 +38,10 @@ import Foundation
         AssertIsOnMainThread()
 
         let callToken = notification.object as! String
-        cancelCallToken(callToken)
+        cancelCallToken(callToken:callToken)
     }
 
-    func cancelCallToken(_ callToken: String) {
+    func cancelCallToken(callToken: String) {
         AssertIsOnMainThread()
 
         cancelledCallTokens.append(callToken)
@@ -72,7 +72,7 @@ import Foundation
 
         // A temporary unique id used to identify this call during the 
         let callToken = NSUUID().uuidString
-        presentCallInterstitial(callToken)
+        presentCallInterstitial(callToken:callToken)
 
         // Since users can toggle this setting, which is only communicated during contact sync, it's easy to imagine the
         // preference getting stale. Especially as users are toggling the feature to test calls. So here, we opt for a
@@ -83,7 +83,7 @@ import Foundation
         self.contactsUpdater.lookupIdentifier(recipientId,
                                               success: { recipient in
                                                 guard !self.cancelledCallTokens.contains(callToken) else {
-                                                    Logger.error("\(self.TAG) OutboundCallInitiator aborting due to cancelled call.")
+                                                    Logger.info("\(self.TAG) OutboundCallInitiator aborting due to cancelled call.")
                                                     return
                                                 }
 
@@ -108,8 +108,8 @@ import Foundation
                                               failure: { error in
                                                 Logger.warn("\(self.TAG) looking up recipientId: \(recipientId) failed with error \(error)")
 
-                                                self.cancelCallToken(callToken)
-                                                self.dismissCallInterstitial(callToken)
+                                                self.cancelCallToken(callToken:callToken)
+                                                self.dismissCallInterstitial(callToken:callToken)
 
                                                 let alertTitle = NSLocalizedString("UNABLE_TO_PLACE_CALL", comment:"Alert Title")
                                                 let alertController = UIAlertController(title: alertTitle, message: error.localizedDescription, preferredStyle: .alert)
@@ -150,14 +150,14 @@ import Foundation
         return true
     }
 
-    private func presentCallInterstitial(_ callToken: String) {
+    private func presentCallInterstitial(callToken: String) {
         AssertIsOnMainThread()
 
         let notificationName = CallService.presentCallInterstitialNotificationName()
         NotificationCenter.default.post(name: NSNotification.Name(rawValue: notificationName), object: callToken)
     }
 
-    private func dismissCallInterstitial(_ callToken: String) {
+    private func dismissCallInterstitial(callToken: String) {
         AssertIsOnMainThread()
 
         let notificationName = CallService.dismissCallInterstitialNotificationName()

Signal/src/view controllers/CallInterstitialViewController.swift

@@ -10,7 +10,7 @@ class CallInterstitialViewController: UIViewController {
     let TAG = "[CallInterstitialViewController]"
 
     var wasCallCancelled = false
-    var callToken: String?
+    let callToken: String!
 
     // MARK: Views
 
@@ -20,12 +20,15 @@ class CallInterstitialViewController: UIViewController {
 
     // MARK: Initializers
 
+    @available(*, unavailable, message:"init is unavailable, use initWithCallToken")
     required init?(coder aDecoder: NSCoder) {
         assert(false)
+        self.callToken = ""
         super.init(coder: aDecoder)
     }
 
-    required init() {
+    required init(callToken: String) {
+        self.callToken = callToken
         super.init(nibName: nil, bundle: nil)
         observeNotifications()
     }
@@ -102,7 +105,7 @@ class CallInterstitialViewController: UIViewController {
         contentView.addSubview(dialingLabel)
 
         let cancelCallButton = UIButton()
-        cancelCallButton.setTitle(NSLocalizedString("CALL_INTERSTITIAL_CANCEL_BUTTON", comment: "Label for cancel button on call interstitial view"),
+        cancelCallButton.setTitle(NSLocalizedString("TXT_CANCEL_TITLE", comment: "nil"),
                                   for:.normal)
         cancelCallButton.setTitleColor(UIColor.white, for:.normal)
         cancelCallButton.titleLabel?.font = UIFont.ows_lightFont(withSize:ScaleFromIPhone5To7Plus(26, 32))
@@ -122,10 +125,6 @@ class CallInterstitialViewController: UIViewController {
         cancelCallButton.autoPinEdge(toSuperviewEdge:.bottom, withInset:ScaleFromIPhone5To7Plus(23, 41))
     }
 
-    func cancelCallButtonPressed(sender button: UIButton) {
-        cancelCall()
-    }
-
     // MARK: - Layout
 
     override func updateViewConstraints() {
@@ -163,4 +162,10 @@ class CallInterstitialViewController: UIViewController {
 
         self.dismiss(animated: false)
     }
+
+    // MARK: - Events
+
+    func cancelCallButtonPressed(sender button: UIButton) {
+        cancelCall()
+    }
 }

Signal/src/view controllers/SignalsViewController.m

@@ -165,8 +165,7 @@ NSString *const SignalsViewControllerSegueShowIncomingCall = @"ShowIncomingCallS
     NSString *callToken = notification.object;
     OWSAssert(callToken != nil);
     
-    OWSCallInterstitialViewController *viewController = [OWSCallInterstitialViewController new];
-    viewController.callToken = callToken;
+    OWSCallInterstitialViewController *viewController = [[OWSCallInterstitialViewController alloc] initWithCallToken:callToken];
     
     void(^presentInterstitial)() = ^{
         viewController.modalPresentationStyle = UIModalPresentationOverFullScreen;
@@ -177,9 +176,7 @@ NSString *const SignalsViewControllerSegueShowIncomingCall = @"ShowIncomingCallS
     
     // Dismiss any other modals so we can present call modal.
     if (self.presentedViewController) {
-        [self dismissViewControllerAnimated:YES completion:^{
-            presentInterstitial();
-        }];
+        [self dismissViewControllerAnimated:YES completion:presentInterstitial];
     } else {
         presentInterstitial();
     }

Signal/translations/en.lproj/Localizable.strings

@@ -73,9 +73,6 @@
 /* Title for call interstitial view */
 "CALL_INTERSTITIAL_CALLING_LABEL" = "Calling...";
 
-/* Label for cancel button on call interstitial view */
-"CALL_INTERSTITIAL_CANCEL_BUTTON" = "Cancel";
-
 /* Accessibilty label for placing call button */
 "CALL_LABEL" = "Call";