FullscreenUI: Support modal error/confirmation

src/duckstation-nogui/nogui_host_interface.cpp

@@ -392,6 +392,66 @@ void NoGUIHostInterface::Run()
   }
 }
 
+void NoGUIHostInterface::ReportMessage(const char* message)
+{
+  Log_InfoPrint(message);
+  AddOSDMessage(message, 10.0f);
+}
+
+void NoGUIHostInterface::ReportError(const char* message)
+{
+  Log_ErrorPrint(message);
+
+  if (!m_display)
+    return;
+
+  ImGui::EndFrame();
+
+  bool done = false;
+  while (!done)
+  {
+    RunCallbacks();
+    PollAndUpdate();
+    if (m_fullscreen_ui_enabled)
+      FullscreenUI::SetImGuiNavInputs();
+
+    ImGui::NewFrame();
+    done = FullscreenUI::DrawErrorWindow(message);
+    ImGui::EndFrame();
+    m_display->Render();
+  }
+
+  ImGui::NewFrame();
+}
+
+bool NoGUIHostInterface::ConfirmMessage(const char* message)
+{
+  Log_InfoPrintf("Confirm: %s", message);
+
+  if (!m_display)
+    return true;
+
+  ImGui::EndFrame();
+
+  bool done = false;
+  bool result = true;
+  while (!done)
+  {
+    RunCallbacks();
+    PollAndUpdate();
+    if (m_fullscreen_ui_enabled)
+      FullscreenUI::SetImGuiNavInputs();
+
+    ImGui::NewFrame();
+    done = FullscreenUI::DrawConfirmWindow(message, &result);
+    ImGui::EndFrame();
+    m_display->Render();
+  }
+
+  ImGui::NewFrame();
+  return result;
+}
+
 void NoGUIHostInterface::RunLater(std::function<void()> callback)
 {
   std::unique_lock<std::mutex> lock(m_queued_callbacks_lock);

src/duckstation-nogui/nogui_host_interface.h

@@ -25,6 +25,10 @@ public:
   virtual void Shutdown() override;
   virtual void Run();
 
+  void ReportMessage(const char* message) override;
+  void ReportError(const char* message) override;
+  bool ConfirmMessage(const char* message) override;
+
   std::string GetStringSettingValue(const char* section, const char* key, const char* default_value = "") override;
   bool GetBoolSettingValue(const char* section, const char* key, bool default_value = false) override;
   int GetIntSettingValue(const char* section, const char* key, int default_value = 0) override;

src/duckstation-nogui/sdl_host_interface.cpp

@@ -253,57 +253,6 @@ std::optional<CommonHostInterface::HostKeyCode> SDLHostInterface::GetHostKeyCode
   return static_cast<HostKeyCode>(*code);
 }
 
-void SDLHostInterface::ReportError(const char* message)
-{
-  const bool was_fullscreen = IsFullscreen();
-  if (was_fullscreen)
-    SetFullscreen(false);
-
-  SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "DuckStation", message, m_window);
-
-  if (was_fullscreen)
-    SetFullscreen(true);
-}
-
-void SDLHostInterface::ReportMessage(const char* message)
-{
-  AddOSDMessage(message, 2.0f);
-}
-
-bool SDLHostInterface::ConfirmMessage(const char* message)
-{
-  const bool was_fullscreen = IsFullscreen();
-  if (was_fullscreen)
-    SetFullscreen(false);
-
-  SDL_MessageBoxData mbd = {};
-  mbd.flags = SDL_MESSAGEBOX_INFORMATION;
-  mbd.window = m_window;
-  mbd.title = "DuckStation";
-  mbd.message = message;
-  mbd.numbuttons = 2;
-
-  // Why the heck these are reversed I have no idea...
-  SDL_MessageBoxButtonData buttons[2] = {};
-  buttons[1].flags = SDL_MESSAGEBOX_BUTTON_ESCAPEKEY_DEFAULT;
-  buttons[1].buttonid = 0;
-  buttons[1].text = "Yes";
-  buttons[0].flags = SDL_MESSAGEBOX_BUTTON_RETURNKEY_DEFAULT;
-  buttons[0].buttonid = 1;
-  buttons[0].text = "No";
-  mbd.buttons = buttons;
-  mbd.numbuttons = countof(buttons);
-
-  int button_id = 0;
-  SDL_ShowMessageBox(&mbd, &button_id);
-  const bool result = (button_id == 0);
-
-  if (was_fullscreen)
-    SetFullscreen(true);
-
-  return result;
-}
-
 void SDLHostInterface::PollAndUpdate()
 {
   // Process SDL events before the controller interface can steal them.

src/duckstation-nogui/sdl_host_interface.h

@@ -12,10 +12,6 @@ public:
 
   const char* GetFrontendName() const override;
 
-  void ReportError(const char* message) override;
-  void ReportMessage(const char* message) override;
-  bool ConfirmMessage(const char* message) override;
-
   bool Initialize() override;
   void Shutdown() override;