Add Open Achievements Hotkey

Adds a hotkey to pause emulation and bring up the Achievements dialog.

Source/Core/DolphinQt/HotkeyScheduler.cpp

@@ -192,6 +192,11 @@ void HotkeyScheduler::Run()
       if (IsHotkey(HK_EXIT))
         emit ExitHotkey();
 
+#ifdef USE_RETRO_ACHIEVEMENTS
+      if (IsHotkey(HK_OPEN_ACHIEVEMENTS))
+        emit OpenAchievements();
+#endif  // USE_RETRO_ACHIEVEMENTS
+
       if (!Core::IsRunning(system))
       {
         // Only check for Play Recording hotkey when no game is running

Source/Core/DolphinQt/HotkeyScheduler.h

@@ -53,6 +53,9 @@ signals:
   void ExportRecording();
   void ToggleReadOnlyMode();
   void ConnectWiiRemote(int id);
+#ifdef USE_RETRO_ACHIEVEMENTS
+  void OpenAchievements();
+#endif  // USE_RETRO_ACHIEVEMENTS
 
   void Step();
   void StepOver();

Source/Core/DolphinQt/MainWindow.cpp

@@ -658,6 +658,10 @@ void MainWindow::ConnectHotkeys()
     movie.SetReadOnly(read_only);
     emit ReadOnlyModeChanged(read_only);
   });
+#ifdef USE_RETRO_ACHIEVEMENTS
+  connect(m_hotkey_scheduler, &HotkeyScheduler::OpenAchievements, this,
+          &MainWindow::ShowAchievementsWindow, Qt::QueuedConnection);
+#endif  // USE_RETRO_ACHIEVEMENTS
 
   connect(m_hotkey_scheduler, &HotkeyScheduler::Step, m_code_widget, &CodeWidget::Step);
   connect(m_hotkey_scheduler, &HotkeyScheduler::StepOver, m_code_widget, &CodeWidget::StepOver);