1 files changed, 55 insertions, 0 deletions

diff --git a/src/hid_core/resources/touch_screen/gesture_handler.h b/src/hid_core/resources/touch_screen/gesture_handler.h
new file mode 100644
index 000000000..fda2040c9
--- /dev/null
+++ b/src/hid_core/resources/touch_screen/gesture_handler.h
@@ -0,0 +1,55 @@
+// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <span>
+
+#include "hid_core/resources/touch_screen/touch_types.h"
+
+namespace Service::HID {
+
+class GestureHandler {
+public:
+    GestureHandler();
+    ~GestureHandler();
+
+    void SetTouchState(std::span<TouchState> touch_state, u32 count, s64 timestamp);
+
+    bool NeedsUpdate();
+    void UpdateGestureState(GestureState& next_state, s64 timestamp);
+
+private:
+    // Initializes new gesture
+    void NewGesture(GestureType& type, GestureAttribute& attributes);
+
+    // Updates existing gesture state
+    void UpdateExistingGesture(GestureState& next_state, GestureType& type);
+
+    // Terminates exiting gesture
+    void EndGesture(GestureState& next_state, GestureType& type, GestureAttribute& attributes);
+
+    // Set current event to a tap event
+    void SetTapEvent(GestureType& type, GestureAttribute& attributes);
+
+    // Calculates and set the extra parameters related to a pan event
+    void UpdatePanEvent(GestureState& next_state, GestureType& type);
+
+    // Terminates the pan event
+    void EndPanEvent(GestureState& next_state, GestureType& type);
+
+    // Set current event to a swipe event
+    void SetSwipeEvent(GestureState& next_state, GestureType& type);
+
+    GestureProperties gesture{};
+    GestureProperties last_gesture{};
+    GestureState last_gesture_state{};
+    s64 last_update_timestamp{};
+    s64 last_tap_timestamp{};
+    f32 last_pan_time_difference{};
+    f32 time_difference{};
+    bool force_update{true};
+    bool enable_press_and_tap{false};
+};
+
+} // namespace Service::HID