Frontend: Clear focus after loading/saving state

dep/imgui/src/imgui_impl_sdl.cpp

@@ -180,8 +180,8 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
         {
           static constexpr unsigned int mapping[][2] = {{SDL_CONTROLLER_BUTTON_A, ImGuiNavInput_Activate},
                                                         {SDL_CONTROLLER_BUTTON_B, ImGuiNavInput_Cancel},
-                                                        {SDL_CONTROLLER_BUTTON_X, ImGuiNavInput_Input},
-                                                        {SDL_CONTROLLER_BUTTON_Y, ImGuiNavInput_Menu},
+                                                        {SDL_CONTROLLER_BUTTON_Y, ImGuiNavInput_Input},
+                                                        // {SDL_CONTROLLER_BUTTON_X, ImGuiNavInput_Menu},
                                                         {SDL_CONTROLLER_BUTTON_LEFTSHOULDER, ImGuiNavInput_FocusPrev},
                                                         {SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, ImGuiNavInput_FocusNext},
                                                         {SDL_CONTROLLER_BUTTON_DPAD_UP, ImGuiNavInput_DpadUp},

src/duckstation/sdl_interface.cpp

@@ -405,7 +405,7 @@ static void HandleSDLControllerAxisEventForController(const SDL_Event* ev, Digit
 {
   // Log_DevPrintf("axis %d %d", ev->caxis.axis, ev->caxis.value);
 
-  static constexpr int deadzone = 5000;
+  static constexpr int deadzone = 8192;
   const bool negative = (ev->caxis.value < 0);
   const bool active = (std::abs(ev->caxis.value) >= deadzone);
 
@@ -583,6 +583,11 @@ void SDLInterface::HandleSDLKeyEvent(const SDL_Event* event)
   }
 }
 
+void SDLInterface::ClearImGuiFocus()
+{
+  ImGui::SetWindowFocus(nullptr);
+}
+
 void SDLInterface::Render()
 {
   DrawImGui();
@@ -1091,6 +1096,8 @@ void SDLInterface::DoStartDisc()
   AddOSDMessage(SmallString::FromFormat("Starting disc from '%s'...", path));
   if (!InitializeSystem(path, nullptr))
     return;
+
+  ClearImGuiFocus();
 }
 
 void SDLInterface::DoStartBIOS()
@@ -1100,6 +1107,8 @@ void SDLInterface::DoStartBIOS()
   AddOSDMessage("Starting BIOS...");
   if (!InitializeSystem(nullptr, nullptr))
     return;
+
+  ClearImGuiFocus();
 }
 
 void SDLInterface::DoLoadState(u32 index)
@@ -1112,12 +1121,14 @@ void SDLInterface::DoLoadState(u32 index)
   m_last_internal_frame_number = m_system->GetInternalFrameNumber();
   m_last_global_tick_counter = m_system->GetGlobalTickCounter();
   m_fps_timer.Reset();
+  ClearImGuiFocus();
 }
 
 void SDLInterface::DoSaveState(u32 index)
 {
   Assert(m_system);
   SaveState(GetSaveStateFilename(index));
+  ClearImGuiFocus();
 }
 
 void SDLInterface::Run()

src/duckstation/sdl_interface.h

@@ -75,6 +75,8 @@ private:
 
   void HandleSDLEvent(const SDL_Event* event);
   void HandleSDLKeyEvent(const SDL_Event* event);
+  void ClearImGuiFocus();
+
   void Render();
   void RenderDisplay();
   void DrawMainMenuBar();