ui/map: update destination on param change (#28957)

* update destination on param change

* use ParamWatcher

* remove include

selfdrive/ui/qt/maps/map_settings.cc

@@ -299,6 +299,9 @@ NavigationRequest::NavigationRequest(QObject *parent) : QObject(parent) {
       QObject::connect(repeater, &RequestRepeater::requestDone, this, &NavigationRequest::parseLocationsResponse);
     }
     {
+      auto param_watcher = new ParamWatcher(this);
+      QObject::connect(param_watcher, &ParamWatcher::paramChanged, this, &NavigationRequest::nextDestinationUpdated);
+
       // Destination set while offline
       QString url = CommaApi::BASE_URL + "/v1/navigation/" + *dongle_id + "/next";
       HttpRequest *deleter = new HttpRequest(this);
@@ -315,8 +318,8 @@ NavigationRequest::NavigationRequest(QObject *parent) : QObject(parent) {
           deleter->sendRequest(url, HttpRequest::Method::DELETE);
         }
 
-        // Update UI (athena can set destination at any time)
-        emit nextDestinationUpdated(resp, success);
+        // athena can set destination at any time
+        param_watcher->addParam("NavDestination");
       });
     }
   }

selfdrive/ui/qt/maps/map_settings.h

@@ -29,7 +29,7 @@ public:
 
 signals:
   void locationsUpdated(const QJsonArray &locations);
-  void nextDestinationUpdated(const QString &response, bool success);
+  void nextDestinationUpdated();
 
 private:
   NavigationRequest(QObject *parent);