input: add flip_x and flip_y for touchpad (#9481)

1 files changed, 21 insertions, 4 deletions

diff --git a/src/managers/input/InputManager.cpp b/src/managers/input/InputManager.cpp
index dffbddc2..ba0b2df4 100644
--- a/src/managers/input/InputManager.cpp
+++ b/src/managers/input/InputManager.cpp
@@ -90,14 +90,28 @@ CInputManager::~CInputManager() {
 void CInputManager::onMouseMoved(IPointer::SMotionEvent e) {
     static auto PNOACCEL = CConfigValue<Hyprlang::INT>("input:force_no_accel");
 
-    const auto  DELTA = *PNOACCEL == 1 ? e.unaccel : e.delta;
+    Vector2D    delta   = e.delta;
+    Vector2D    unaccel = e.unaccel;
+
+    if (!e.mouse && e.device) {
+        if (e.device->flipX) {
+            delta.x   = -delta.x;
+            unaccel.x = -unaccel.x;
+        }
+        if (e.device->flipY) {
+            delta.y   = -delta.y;
+            unaccel.y = -unaccel.y;
+        }
+    }
+
+    const auto DELTA = *PNOACCEL == 1 ? unaccel : delta;
 
     if (g_pSeatManager->isPointerFrameSkipped)
-        g_pPointerManager->storeMovement((uint64_t)e.timeMs, DELTA, e.unaccel);
+        g_pPointerManager->storeMovement((uint64_t)e.timeMs, DELTA, unaccel);
     else
-        g_pPointerManager->setStoredMovement((uint64_t)e.timeMs, DELTA, e.unaccel);
+        g_pPointerManager->setStoredMovement((uint64_t)e.timeMs, DELTA, unaccel);
 
-    PROTO::relativePointer->sendRelativeMotion((uint64_t)e.timeMs * 1000, DELTA, e.unaccel);
+    PROTO::relativePointer->sendRelativeMotion((uint64_t)e.timeMs * 1000, DELTA, unaccel);
 
     if (e.mouse)
         recheckMouseWarpOnMouseInput();
@@ -1180,6 +1194,9 @@ void CInputManager::setPointerConfigs() {
             const auto LIBINPUTSENS = std::clamp(g_pConfigManager->getDeviceFloat(devname, "sensitivity", "input:sensitivity"), -1.f, 1.f);
             libinput_device_config_accel_set_speed(LIBINPUTDEV, LIBINPUTSENS);
 
+            m->flipX = g_pConfigManager->getDeviceInt(devname, "flip_x", "input:touchpad:flip_x") != 0;
+            m->flipY = g_pConfigManager->getDeviceInt(devname, "flip_y", "input:touchpad:flip_y") != 0;
+
             const auto ACCELPROFILE = g_pConfigManager->getDeviceString(devname, "accel_profile", "input:accel_profile");
             const auto SCROLLPOINTS = g_pConfigManager->getDeviceString(devname, "scroll_points", "input:scroll_points");