CommonHostInterface: Fix OSD messages not clearing on shutdown

src/frontend-common/common_host_interface.cpp

@@ -1149,8 +1149,15 @@ void CommonHostInterface::AddOSDMessage(std::string message, float duration /*=
 
 void CommonHostInterface::ClearOSDMessages()
 {
-  std::unique_lock<std::mutex> lock(m_osd_messages_lock);
-  m_osd_posted_messages.clear();
+  {
+    std::unique_lock<std::mutex> lock(m_osd_messages_lock);
+    m_osd_posted_messages.clear();
+  }
+
+  m_osd_active_messages.clear();
+
+  if (IsFullscreenUIEnabled())
+    ImGuiFullscreen::ClearNotifications();
 }
 
 bool CommonHostInterface::EnumerateOSDMessages(std::function<bool(const std::string&, float)> callback)

src/frontend-common/imgui_fullscreen.cpp

@@ -1500,6 +1500,11 @@ void AddNotification(float duration, std::string title, std::string text, std::s
   s_notifications.push_back(std::move(notif));
 }
 
+void ClearNotifications()
+{
+  s_notifications.clear();
+}
+
 void DrawNotifications(ImVec2& position, float spacing)
 {
   if (s_notifications.empty())

src/frontend-common/imgui_fullscreen.h

@@ -254,5 +254,6 @@ void UpdateBackgroundProgressDialog(const char* str_id, std::string message, s32
 void CloseBackgroundProgressDialog(const char* str_id);
 
 void AddNotification(float duration, std::string title, std::string text, std::string image_path);
+void ClearNotifications();
 
 } // namespace ImGuiFullscreen