ui/map: delete map after unsubscribing from prime (#29136)

Co-authored-by: Cameron Clough <cameronjclough@gmail.com>

selfdrive/ui/qt/onroad.cc

@@ -63,6 +63,7 @@ OnroadWindow::OnroadWindow(QWidget *parent) : QWidget(parent) {
   setAttribute(Qt::WA_OpaquePaintEvent);
   QObject::connect(uiState(), &UIState::uiUpdate, this, &OnroadWindow::updateState);
   QObject::connect(uiState(), &UIState::offroadTransition, this, &OnroadWindow::offroadTransition);
+  QObject::connect(uiState(), &UIState::primeChanged, this, &OnroadWindow::primeChanged);
 }
 
 void OnroadWindow::updateState(const UIState &s) {
@@ -105,7 +106,7 @@ void OnroadWindow::mousePressEvent(QMouseEvent* e) {
 void OnroadWindow::offroadTransition(bool offroad) {
 #ifdef ENABLE_MAPS
   if (!offroad) {
-    if (map == nullptr && (uiState()->primeType() || !MAPBOX_TOKEN.isEmpty())) {
+    if (map == nullptr && (uiState()->hasPrime() || !MAPBOX_TOKEN.isEmpty())) {
       auto m = new MapPanel(get_mapbox_settings());
       map = m;
 
@@ -125,6 +126,17 @@ void OnroadWindow::offroadTransition(bool offroad) {
   alerts->updateAlert({});
 }
 
+void OnroadWindow::primeChanged(bool prime) {
+#ifdef ENABLE_MAPS
+  if (map && (!prime && MAPBOX_TOKEN.isEmpty())) {
+    nvg->map_settings_btn->setEnabled(false);
+    nvg->map_settings_btn->setVisible(false);
+    map->deleteLater();
+    map = nullptr;
+  }
+#endif
+}
+
 void OnroadWindow::paintEvent(QPaintEvent *event) {
   QPainter p(this);
   p.fillRect(rect(), QColor(bg.red(), bg.green(), bg.blue(), 255));

selfdrive/ui/qt/onroad.h

@@ -150,5 +150,6 @@ private:
 
 private slots:
   void offroadTransition(bool offroad);
+  void primeChanged(bool prime);
   void updateState(const UIState &s);
 };