Camera permission fixup

- remove unknown segue, otherwise couldn't compile project
- translated english strings
- added translation comments
- reused existing "dismiss" string
- deselected row after dismissing permissions alert in linked devices
  screen

// FREEBIE

Signal/src/Storyboard/Main.storyboard

@@ -1519,7 +1519,6 @@
         <simulatedScreenMetrics key="destination" type="retina4_7.fullscreen"/>
     </simulatedMetricsContainer>
     <inferredMetricsTieBreakers>
-        <segue reference="xo7-5J-BJb"/>
         <segue reference="tfr-ZV-qWs"/>
         <segue reference="E8S-Yc-X7E"/>
     </inferredMetricsTieBreakers>

Signal/src/util/UIViewController+CameraPermissions.h

@@ -10,7 +10,8 @@
 NS_ASSUME_NONNULL_BEGIN
 @interface UIViewController (CameraPermissions)
 
--(void)ows_askForCameraPermissions:(void(^)())permissionsGrantedCallback;
+- (void)ows_askForCameraPermissions:(void (^)())permissionsGrantedCallback
+                 alertActionHandler:(nullable void (^)())alertActionHandler;
 
 @end
 NS_ASSUME_NONNULL_END

Signal/src/util/UIViewController+CameraPermissions.m

@@ -13,7 +13,8 @@ NS_ASSUME_NONNULL_BEGIN
 
 @implementation UIViewController (CameraPermissions)
 
--(void)ows_askForCameraPermissions:(void(^)())permissionsGrantedCallback
+- (void)ows_askForCameraPermissions:(void (^)())permissionsGrantedCallback
+                 alertActionHandler:(nullable void (^)())alertActionHandler
 {
     if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
         DDLogError(@"Camera ImagePicker source not available");
@@ -21,13 +22,25 @@ NS_ASSUME_NONNULL_BEGIN
     }
     AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
     if (status == AVAuthorizationStatusDenied) {
-        UIAlertController* alert = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"CAMERA_PERMISSION_TITLE",nil) message:NSLocalizedString(@"CAMERA_PERMISSION_MESSAGE",nil) preferredStyle:UIAlertControllerStyleAlert];
-        
-        [alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"CAMERA_PERMISSION_PROCEED",nil) style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
+        UIAlertController* alert = [UIAlertController alertControllerWithTitle:NSLocalizedString(@"MISSING_CAMERA_PERMISSION_TITLE", @"Alert title")
+                                                                       message:NSLocalizedString(@"MISSING_CAMERA_PERMISSION_MESSAGE", @"Alert body")
+                                                                preferredStyle:UIAlertControllerStyleAlert];
+
+        NSString *settingsTitle = NSLocalizedString(@"OPEN_SETTINGS_BUTTON", @"Button text which opens the settings app");
+        UIAlertAction *openSettingsAction = [UIAlertAction actionWithTitle:settingsTitle style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
             [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
-        }]];
-        [alert addAction:[UIAlertAction actionWithTitle:NSLocalizedString(@"CAMERA_PERMISSION_CANCEL",nil) style:UIAlertActionStyleCancel handler:nil]];
-        [self presentViewController:alert animated:YES completion:[UIUtil modalCompletionBlock]];
+            if (alertActionHandler) {
+                alertActionHandler();
+            }
+        }];
+        [alert addAction:openSettingsAction];
+
+        UIAlertAction *dismissAction = [UIAlertAction actionWithTitle:NSLocalizedString(@"DISMISS_BUTTON_TEXT", nil)
+                                                                style:UIAlertActionStyleCancel
+                                                              handler:alertActionHandler];
+        [alert addAction:dismissAction];
+
+        [self presentViewController:alert animated:YES completion:nil];
     } else if (status == AVAuthorizationStatusAuthorized) {
         permissionsGrantedCallback();
     } else if (status == AVAuthorizationStatusNotDetermined) {

Signal/src/view controllers/FingerprintViewController.m

@@ -153,7 +153,8 @@ NS_ASSUME_NONNULL_BEGIN
                          completion:nil];
         
         [self.qrScanningController startCapture];
-    }];
+    }
+                   alertActionHandler:nil];
 }
 
 // pragma mark - OWSQRScannerDelegate

Signal/src/view controllers/MessagesViewController.m

@@ -1569,8 +1569,8 @@ typedef enum : NSUInteger {
         picker.allowsEditing = NO;
         picker.delegate = self;
         [self presentViewController:picker animated:YES completion:[UIUtil modalCompletionBlock]];
-
-    }];
+    }
+                   alertActionHandler:nil];
 }
 - (void)chooseFromLibrary {
     if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {

Signal/src/view controllers/OWSLinkedDevicesTableViewController.m

@@ -255,9 +255,15 @@ int const OWSLinkedDevicesTableViewControllerSectionAddDevice = 1;
     {
         [self ows_askForCameraPermissions:^{
             [self performSegueWithIdentifier:@"LinkDeviceSegue" sender:self];
-        }];
+        }
+            alertActionHandler:^{
+                // HACK to unselect rows when swiping back
+                // http://stackoverflow.com/questions/19379510/uitableviewcell-doesnt-get-deselected-when-swiping-back-quickly
+                [self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
+            }];
     }
 }
+
 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 {
     if (indexPath.section == OWSLinkedDevicesTableViewControllerSectionAddDevice) {