ControllerInterface: Add platform consistent names for modifier keys.

1 files changed, 5 insertions, 0 deletions

diff --git a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
index d049f22c8c..9ec1c2be35 100644
--- a/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
+++ b/Source/Core/InputCommon/ControllerInterface/Xlib/XInput2.cpp
@@ -172,6 +172,11 @@ KeyboardMouse::KeyboardMouse(Window window, int opcode, int pointer, int keyboar
       delete temp_key;
   }
 
+  // Add combined left/right modifiers with consistent naming across platforms.
+  AddCombinedInput("Alt", {"Alt_L", "Alt_R"});
+  AddCombinedInput("Shift", {"Shift_L", "Shift_R"});
+  AddCombinedInput("Ctrl", {"Control_L", "Control_R"});
+
   // Mouse Buttons
   for (int i = 0; i < 32; i++)
     AddInput(new Button(i, &m_state.buttons));