NavigationService: Autostart navigation app on nav command

When a paired device sends a navigation message, the navigation service
will automatically trigger the navigation app to open if there is no app
already loaded.

src/components/ble/NavigationService.cpp

@@ -17,6 +17,7 @@
 */
 
 #include "components/ble/NavigationService.h"
+#include "systemtask/SystemTask.h"
 
 namespace {
   // 0001yyxx-78fc-48fe-8e23-433b3a1942d0
@@ -43,7 +44,7 @@ namespace {
   }
 } // namespace
 
-Pinetime::Controllers::NavigationService::NavigationService() {
+Pinetime::Controllers::NavigationService::NavigationService(Pinetime::System::SystemTask& systemTask) : systemTask {systemTask} {
   characteristicDefinition[0] = {.uuid = &navFlagCharUuid.u,
                                  .access_cb = NAVCallback,
                                  .arg = this,
@@ -96,6 +97,7 @@ int Pinetime::Controllers::NavigationService::OnCommand(struct ble_gatt_access_c
     } else if (ble_uuid_cmp(ctxt->chr->uuid, &navProgressCharUuid.u) == 0) {
       m_progress = data[0];
     }
+    systemTask.PushMessage(Pinetime::System::Messages::OnNavChange);
   }
   return 0;
 }

src/components/ble/NavigationService.h

@@ -27,11 +27,16 @@
 #undef min
 
 namespace Pinetime {
+
+  namespace System {
+    class SystemTask;
+  }
+
   namespace Controllers {
 
     class NavigationService {
     public:
-      NavigationService();
+      explicit NavigationService(Pinetime::System::SystemTask& systemTask);
 
       void Init();
 
@@ -53,6 +58,8 @@ namespace Pinetime {
       std::string m_narrative;
       std::string m_manDist;
       int m_progress;
+
+      Pinetime::System::SystemTask& systemTask;
     };
   }
 }

src/components/ble/NimbleController.cpp

@@ -44,6 +44,7 @@ NimbleController::NimbleController(Pinetime::System::SystemTask& systemTask,
     currentTimeService {dateTimeController},
     musicService {systemTask, *this},
     weatherService {dateTimeController},
+    navService {systemTask},
     batteryInformationService {batteryController},
     immediateAlertService {systemTask, notificationManager},
     heartRateService {*this, heartRateController},

src/displayapp/DisplayApp.cpp

@@ -267,6 +267,14 @@ void DisplayApp::Refresh() {
           LoadNewScreen(Apps::Music, DisplayApp::FullRefreshDirections::Up);
         }
         break;
+      case Messages::NavStarted:
+        if (currentApp == Apps::Clock && AppAvailable(Apps::Navigation)) {
+          if (state != States::Running) {
+            PushMessageToSystemTask(System::Messages::GoToRunning);
+          }
+          LoadNewScreen(Apps::Navigation, DisplayApp::FullRefreshDirections::Up);
+        }
+        break;
       case Messages::TimerDone:
         if (state != States::Running) {
           PushMessageToSystemTask(System::Messages::GoToRunning);

src/displayapp/Messages.h

@@ -16,6 +16,7 @@ namespace Pinetime {
         ButtonDoubleClicked,
         NewNotification,
         MusicStarted,
+        NavStarted,
         TimerDone,
         BleFirmwareUpdateStarted,
         DimScreen,

src/systemtask/Messages.h

@@ -25,6 +25,7 @@ namespace Pinetime {
       OnChargingEvent,
       OnPairing,
       OnMusicStarted,
+      OnNavChange,
       SetOffAlarm,
       MeasureBatteryTimerExpired,
       BatteryPercentageUpdated,

src/systemtask/SystemTask.cpp

@@ -396,6 +396,9 @@ void SystemTask::Work() {
         case Messages::OnMusicStarted:
           displayApp.PushMessage(Pinetime::Applications::Display::Messages::MusicStarted);
           break;
+        case Messages::OnNavChange:
+          displayApp.PushMessage(Pinetime::Applications::Display::Messages::NavStarted);
+          break;
         default:
           break;
       }