[iOS] fix flashing maneuvers on carplay

https://jira.mail.ru/browse/MAPSME-14919

iphone/Maps/Classes/CarPlay/CarPlayRouter.swift

@@ -211,24 +211,48 @@ extension CarPlayRouter {
     routeSession = template.startNavigationSession(for: trip)
     routeSession?.pauseTrip(for: .loading, description: nil)
     updateUpcomingManeuvers()
+    RoutingManager.routingManager.setOnNewTurnCallback { [weak self] in
+      self?.updateUpcomingManeuvers()
+    }
   }
   
   func cancelTrip() {
     routeSession?.cancelTrip()
     routeSession = nil
     completeRouteAndRemovePoints()
+    RoutingManager.routingManager.resetOnNewTurnCallback()
   }
   
   func finishTrip() {
     routeSession?.finishTrip()
     routeSession = nil
     completeRouteAndRemovePoints()
+    RoutingManager.routingManager.resetOnNewTurnCallback()
   }
   
   func updateUpcomingManeuvers() {
     let maneuvers = createUpcomingManeuvers()
     routeSession?.upcomingManeuvers = maneuvers
   }
+
+  func updateEstimates() {
+    guard let routeSession = routeSession,
+          let routeInfo = RoutingManager.routingManager.routeInfo,
+          let primaryManeuver = routeSession.upcomingManeuvers.first,
+          let estimates = createEstimates(routeInfo) else {
+      return
+    }
+    routeSession.updateEstimates(estimates, for: primaryManeuver)
+  }
+
+  private func createEstimates(_ routeInfo: RouteInfo) -> CPTravelEstimates? {
+    guard let distance = Double(routeInfo.distanceToTurn) else {
+      return nil
+    }
+
+    let measurement = Measurement(value: distance, unit: routeInfo.turnUnits)
+    return CPTravelEstimates(distanceRemaining: measurement, timeRemaining: 0.0)
+  }
   
   private func createUpcomingManeuvers() -> [CPManeuver] {
     guard let routeInfo = RoutingManager.routingManager.routeInfo else {
@@ -251,11 +275,7 @@ extension CarPlayRouter {
       primaryManeuver.symbolSet = CPImageSet(lightContentImage: symbol,
                                              darkContentImage: symbol)
     }
-    if let distance = Double(routeInfo.distanceToTurn) {
-      let measurement = Measurement(value: distance,
-                                    unit: routeInfo.turnUnits)
-      let estimates = CPTravelEstimates(distanceRemaining: measurement,
-                                        timeRemaining: 0.0)
+    if let estimates = createEstimates(routeInfo) {
       primaryManeuver.initialTravelEstimates = estimates
     }
     maneuvers.append(primaryManeuver)
@@ -321,6 +341,7 @@ extension CarPlayRouter: RoutingManagerListener {
           listenerContainer.forEach({
             $0.didUpdateRouteInfo(info, forTrip: trip)
           })
+          updateUpcomingManeuvers()
         }
       }
     default:

iphone/Maps/Classes/CarPlay/CarPlayService.swift

@@ -518,7 +518,7 @@ extension CarPlayService: CarPlayRouterListener {
       let template = rootMapTemplate else {
         return
     }
-    router.updateUpcomingManeuvers()
+    router.updateEstimates()
     if let estimates = createEstimates(routeInfo: routeInfo) {
       template.updateEstimates(estimates, for: trip)
     }

iphone/Maps/Core/Framework/ProxyObjects/Routing/MWMRoutingManager.h

@@ -36,6 +36,8 @@ NS_SWIFT_NAME(RoutingManager)
 - (void)addRoutePoint:(MWMRoutePoint *)point NS_SWIFT_NAME(add(routePoint:));
 - (void)buildRouteWithDidFailError:(NSError **)errorPtr __attribute__((swift_error(nonnull_error))) NS_SWIFT_NAME(buildRoute());
 - (void)startRoute;
+- (void)setOnNewTurnCallback:(MWMVoidBlock)callback;
+- (void)resetOnNewTurnCallback;
 
 - (instancetype)init __attribute__((unavailable("call +routingManager instead")));
 - (instancetype)copy __attribute__((unavailable("call +routingManager instead")));

iphone/Maps/Core/Framework/ProxyObjects/Routing/MWMRoutingManager.mm

@@ -198,6 +198,16 @@
   }
 }
 
+- (void)setOnNewTurnCallback:(MWMVoidBlock)callback {
+  self.rm.RoutingSession().SetOnNewTurnCallback([callback] {
+    callback();
+  });
+}
+
+- (void)resetOnNewTurnCallback {
+  self.rm.RoutingSession().SetOnNewTurnCallback(nullptr);
+}
+
 #pragma mark - MWMFrameworkRouteBuilderObserver implementation
 
 - (void)processRouteBuilderEvent:(routing::RouterResultCode)code

iphone/Maps/Images.xcassets/CarPlay/Maneuvers/Symbols/ic_cp_uturn_right_then.imageset/Contents.json

@@ -1,21 +1,12 @@
 {
   "images" : [
     {
-      "idiom" : "universal",
       "filename" : "ic_cp_uturn_right_then.pdf",
-      "scale" : "1x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "2x"
-    },
-    {
-      "idiom" : "universal",
-      "scale" : "3x"
+      "idiom" : "universal"
     }
   ],
   "info" : {
-    "version" : 1,
-    "author" : "xcode"
+    "author" : "xcode",
+    "version" : 1
   }
-}
+}