From 1250c0843a4a3ee3f4971138885f7f572f3f9d51 Mon Sep 17 00:00:00 2001
From: Craig Carnell <1188869+cscd98@users.noreply.github.com>
Date: Sat, 8 Aug 2026 10:42:54 +0100
Subject: [PATCH] libretro: add option to disable default mouse bindings

---
 .../Core/DolphinLibretro/Common/Options.cpp   | 14 ++++++++
 Source/Core/DolphinLibretro/Common/Options.h  |  1 +
 Source/Core/DolphinLibretro/Input.cpp         | 32 +++++++++++++------
 3 files changed, 37 insertions(+), 10 deletions(-)

diff --git a/Source/Core/DolphinLibretro/Common/Options.cpp b/Source/Core/DolphinLibretro/Common/Options.cpp
index be6b1934c875..3810a65c461c 100644
--- a/Source/Core/DolphinLibretro/Common/Options.cpp
+++ b/Source/Core/DolphinLibretro/Common/Options.cpp
@@ -1778,6 +1778,20 @@ static struct retro_core_option_v2_definition option_defs[] = {
     "disabled"
 #endif
   },
+  {
+    Libretro::Options::retroarch_core::ENABLE_DEFAULT_MOUSE_BINDINGS,
+    "RetroArch core > Enable Default Mouse Bindings",
+    "Enable Default Mouse Bindings",
+    "Enable default Mouse Bindings, disable for more control on bindings.",
+    nullptr,
+    CATEGORY_RETROARCH_CORE,
+    {
+      { "disabled", nullptr },
+      { "enabled",  nullptr },
+      { nullptr, nullptr }
+    },
+    "enabled"
+  },
 
   { nullptr, nullptr, nullptr, nullptr, nullptr, nullptr, {{0}}, nullptr }
 };
diff --git a/Source/Core/DolphinLibretro/Common/Options.h b/Source/Core/DolphinLibretro/Common/Options.h
index 5679ad77dbf2..ddd01b3ec8b3 100644
--- a/Source/Core/DolphinLibretro/Common/Options.h
+++ b/Source/Core/DolphinLibretro/Common/Options.h
@@ -319,6 +319,7 @@ namespace retroarch_core {
 #endif
 
   constexpr const char ENABLE_LIBRETRO_VFS[] = "dolphin_libretro_vfs_enabled";
+  constexpr const char ENABLE_DEFAULT_MOUSE_BINDINGS[] = "dolphin_default_mouse_bindings_enabled";
 
 }  // namespace wiimote
 
diff --git a/Source/Core/DolphinLibretro/Input.cpp b/Source/Core/DolphinLibretro/Input.cpp
index 8382eac763c6..1da73bbc7493 100644
--- a/Source/Core/DolphinLibretro/Input.cpp
+++ b/Source/Core/DolphinLibretro/Input.cpp
@@ -1213,6 +1213,18 @@ static WiimoteEmu::Wiimote* load_saved_controller_config(unsigned port, unsigned
   return nullptr;  // nothing found, applies hard-coded defaults
 }
 
+// returns retropad_expr on its own, with additional mouse bindings
+static std::string bindMouse(const std::string& retropad_expr, const std::string& mouse_target)
+{
+  static const bool enable_default_mouse_bindings =
+    Libretro::Options::GetCached<bool>(Libretro::Options::retroarch_core::ENABLE_DEFAULT_MOUSE_BINDINGS, /*def=*/true);
+
+  if (!enable_default_mouse_bindings)
+    return retropad_expr;
+
+  return retropad_expr + " | `" + mouse_target + "`";
+}
+
 void retro_set_controller_port_device_gc(unsigned port, unsigned device)
 {
   std::string devJoypad = Libretro::Input::GetQualifiedName(port, RETRO_DEVICE_JOYPAD);
@@ -1413,12 +1425,12 @@ void retro_set_controller_port_device_wii(unsigned port, unsigned device)
       ncStick->SetControlExpression(1, "`" + devAnalog + ":Y0+`");         // Down
       ncStick->SetControlExpression(2, "`" + devAnalog + ":X0-`");         // Left
       ncStick->SetControlExpression(3, "`" + devAnalog + ":X0+`");         // Right
-      ncShake->SetControlExpression(0, "L2 | `" + devMouse + ":Middle`");  // Nunchuk shake X
-      ncShake->SetControlExpression(1, "L2 | `" + devMouse + ":Middle`");  // Nunchuk shake Y
-      ncShake->SetControlExpression(2, "L2 | `" + devMouse + ":Middle`");  // Nunchuk shake Z
+      ncShake->SetControlExpression(0, bindMouse("L2", devMouse + ":Middle"));  // Nunchuk shake X
+      ncShake->SetControlExpression(1, bindMouse("L2", devMouse + ":Middle"));  // Nunchuk shake Y
+      ncShake->SetControlExpression(2, bindMouse("L2", devMouse + ":Middle"));  // Nunchuk shake Z
 
-      wmButtons->SetControlExpression(0, "A | `" + devMouse + ":Left`");   // A
-      wmButtons->SetControlExpression(1, "B | `" + devMouse + ":Right`");  // B
+      wmButtons->SetControlExpression(0, bindMouse("A", devMouse + ":Left"));   // A
+      wmButtons->SetControlExpression(1, bindMouse("B", devMouse + ":Right"));  // B
       wmButtons->SetControlExpression(2, "Start");                         // 1
       wmButtons->SetControlExpression(3, "Select");                        // 2
       wmButtons->SetControlExpression(4, "L");                             // -
@@ -1430,8 +1442,8 @@ void retro_set_controller_port_device_wii(unsigned port, unsigned device)
     {
       if (device == RETRO_DEVICE_WIIMOTE)
       {
-        wmButtons->SetControlExpression(0, "A | `" + devMouse + ":Left`");   // A
-        wmButtons->SetControlExpression(1, "B | `" + devMouse + ":Right`");  // B
+        wmButtons->SetControlExpression(0, bindMouse("A", devMouse + ":Left"));   // A
+        wmButtons->SetControlExpression(1, bindMouse("B", devMouse + ":Right"));  // B
         wmButtons->SetControlExpression(2, "X");                             // 1
         wmButtons->SetControlExpression(3, "Y");                             // 2
       }
@@ -1506,9 +1518,9 @@ void retro_set_controller_port_device_wii(unsigned port, unsigned device)
     f.sideways = true;
     Libretro::Input::UpdateWiimoteMappings(f, port, device);
 
-    wmShake->SetControlExpression(0, "R2 | `" + devMouse + ":Middle`");  // Wiimote shake X
-    wmShake->SetControlExpression(1, "R2 | `" + devMouse + ":Middle`");  // Wiimote shake Y
-    wmShake->SetControlExpression(2, "R2 | `" + devMouse + ":Middle`");  // Wiimote shake Z
+    wmShake->SetControlExpression(0, bindMouse("L2", devMouse + ":Middle"));  // Wiimote shake X
+    wmShake->SetControlExpression(1, bindMouse("L2", devMouse + ":Middle"));  // Wiimote shake Y
+    wmShake->SetControlExpression(2, bindMouse("L2", devMouse + ":Middle"));  // Wiimote shake Z
   }
 
   ControllerEmu::ControlGroup* wmOptions = wm->GetWiimoteGroup(WiimoteGroup::Options);