Don't mark as read when callscreen is active

// FREEBIE

Signal/src/ViewControllers/ConversationView/ConversationViewController.m

@@ -3834,6 +3834,10 @@ typedef enum : NSUInteger {
         DDLogInfo(@"%@ Not marking messages as read; another view is presented.", self.logTag);
         return;
     }
+    if (OWSWindowManager.sharedManager.shouldShowCallView) {
+        DDLogInfo(@"%@ Not marking messages as read; call view is presented.", self.logTag);
+        return;
+    }
     if (self.navigationController.topViewController != self) {
         DDLogInfo(@"%@ Not marking messages as read; another view is pushed.", self.logTag);
         return;

SignalMessaging/utils/OWSWindowManager.h

@@ -29,6 +29,8 @@ extern const UIWindowLevel UIWindowLevel_Background;
 
 #pragma mark - Calls
 
+@property (nonatomic, readonly) BOOL shouldShowCallView;
+
 - (void)startCall:(UIViewController *)callViewController;
 - (void)endCall:(UIViewController *)callViewController;
 - (void)leaveCallView;