feat(input): add flip_x and flip_y for touchpad

hyprwm · Feb 25, 2025 · 13712bd · 13712bd
1 parent f085090
commit 13712bd
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Showing 3 changed files with 38 additions and 4 deletions.
diff --git a/src/config/ConfigDescriptions.hpp b/src/config/ConfigDescriptions.hpp
@@ -609,6 +609,20 @@ inline static const std::vector<SConfigOptionDescription> CONFIG_OPTIONS = {
         .data        = SConfigOptionDescription::SBoolData{false},
     },
 
+    SConfigOptionDescription{
+        .value       = "input:touchpad:flip_x",
+        .description = "Inverts the horizontal movement of the touchpad",
+        .type        = CONFIG_OPTION_BOOL,
+        .data        = SConfigOptionDescription::SBoolData{false},
+    },
+
+    SConfigOptionDescription{
+        .value       = "input:touchpad:flip_y",
+        .description = "Inverts the vertical movement of the touchpad",
+        .type        = CONFIG_OPTION_BOOL,
+        .data        = SConfigOptionDescription::SBoolData{false},
+    },
+
     /*
      * input:touchdevice:
      */

diff --git a/src/config/ConfigManager.cpp b/src/config/ConfigManager.cpp
@@ -602,6 +602,8 @@ CConfigManager::CConfigManager() {
     registerConfigVar("input:touchpad:tap-and-drag", Hyprlang::INT{1});
     registerConfigVar("input:touchpad:drag_lock", Hyprlang::INT{0});
     registerConfigVar("input:touchpad:scroll_factor", {1.f});
+    registerConfigVar("input:touchpad:flip_x", Hyprlang::INT{0});
+    registerConfigVar("input:touchpad:flip_y", Hyprlang::INT{0});
     registerConfigVar("input:touchdevice:transform", Hyprlang::INT{0});
     registerConfigVar("input:touchdevice:output", {"[[Auto]]"});
     registerConfigVar("input:touchdevice:enabled", Hyprlang::INT{1});
@@ -716,6 +718,8 @@ CConfigManager::CConfigManager() {
     m_pConfig->addSpecialConfigValue("device", "tap-to-click", Hyprlang::INT{1});
     m_pConfig->addSpecialConfigValue("device", "tap-and-drag", Hyprlang::INT{1});
     m_pConfig->addSpecialConfigValue("device", "drag_lock", Hyprlang::INT{0});
+    m_pConfig->addSpecialConfigValue("device", "flip_x", Hyprlang::INT{0});
+    m_pConfig->addSpecialConfigValue("device", "flip_y", Hyprlang::INT{0});
     m_pConfig->addSpecialConfigValue("device", "left_handed", Hyprlang::INT{0});
     m_pConfig->addSpecialConfigValue("device", "scroll_method", {STRVAL_EMPTY});
     m_pConfig->addSpecialConfigValue("device", "scroll_button", Hyprlang::INT{0});

diff --git a/src/managers/input/InputManager.cpp b/src/managers/input/InputManager.cpp
@@ -89,15 +89,31 @@ CInputManager::~CInputManager() {
 
 void CInputManager::onMouseMoved(IPointer::SMotionEvent e) {
     static auto PNOACCEL = CConfigValue<Hyprlang::INT>("input:force_no_accel");
+    static auto PFLIPX   = CConfigValue<Hyprlang::INT>("input:touchpad:flip_x");
+    static auto PFLIPY   = CConfigValue<Hyprlang::INT>("input:touchpad:flip_y");
 
-    const auto  DELTA = *PNOACCEL == 1 ? e.unaccel : e.delta;
+    Vector2D    delta   = e.delta;
+    Vector2D    unaccel = e.unaccel;
+
+    if (!e.mouse) {
+        if (*PFLIPX) {
+            delta.x   = -delta.x;
+            unaccel.x = -unaccel.x;
+        }
+        if (*PFLIPY) {
+            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();