Merge pull request #12632 from jordan-woyak/input-backend-impls

Implement missing InputBackend classes.

1 files changed, 32 insertions, 3 deletions

diff --git a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
index f041dd16a1..e4b717e3af 100644
--- a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
@@ -66,9 +66,38 @@ constexpr int XINPUT_MAJOR = 2, XINPUT_MINOR = 1;
 
 namespace ciface::XInput2
 {
+constexpr std::string_view SOURCE_NAME = "XInput2";
+
+class InputBackend final : public ciface::InputBackend
+{
+public:
+  using ciface::InputBackend::InputBackend;
+  void PopulateDevices() override;
+  void HandleWindowChange() override;
+};
+
+std::unique_ptr<ciface::InputBackend> CreateInputBackend(ControllerInterface* controller_interface)
+{
+  return std::make_unique<InputBackend>(controller_interface);
+}
+
+void InputBackend::HandleWindowChange()
+{
+  GetControllerInterface().RemoveDevice(
+      [](const auto* dev) { return dev->GetSource() == SOURCE_NAME; }, true);
+
+  PopulateDevices();
+}
+
 // This function will add zero or more KeyboardMouse objects to devices.
-void PopulateDevices(void* const hwnd)
+void InputBackend::PopulateDevices()
 {
+  const WindowSystemInfo wsi = GetControllerInterface().GetWindowSystemInfo();
+  if (wsi.type != WindowSystemType::X11)
+    return;
+
+  const auto hwnd = wsi.render_window;
+
   Display* dpy = XOpenDisplay(nullptr);
 
   // xi_opcode is important; it will be used to identify XInput events by
@@ -119,7 +148,7 @@ void PopulateDevices(void* const hwnd)
       }
       // Since current_master is a master pointer, its attachment must
       // be a master keyboard.
-      g_controller_interface.AddDevice(
+      GetControllerInterface().AddDevice(
           std::make_shared<KeyboardMouse>((Window)hwnd, xi_opcode, current_master->deviceid,
                                           current_master->attachment, scroll_increment));
     }
@@ -382,7 +411,7 @@ std::string KeyboardMouse::GetName() const
 
 std::string KeyboardMouse::GetSource() const
 {
-  return "XInput2";
+  return std::string(SOURCE_NAME);
 }
 
 KeyboardMouse::Key::Key(Display* const display, KeyCode keycode, const char* keyboard)