Add touchpad gesture support

3 files changed, 118 insertions, 7 deletions

diff --git a/src/handlers/mod.rs b/src/handlers/mod.rs
index a496b341..782b7b37 100644
--- a/src/handlers/mod.rs
+++ b/src/handlers/mod.rs
@@ -12,8 +12,8 @@ use smithay::wayland::data_device::{
     ServerDndGrabHandler,
 };
 use smithay::{
-    delegate_data_device, delegate_output, delegate_presentation, delegate_seat,
-    delegate_tablet_manager,
+    delegate_data_device, delegate_output, delegate_pointer_gestures, delegate_presentation,
+    delegate_seat, delegate_tablet_manager,
 };
 
 use crate::Niri;
@@ -40,6 +40,7 @@ impl SeatHandler for Niri {
 }
 delegate_seat!(Niri);
 delegate_tablet_manager!(Niri);
+delegate_pointer_gestures!(Niri);
 
 impl DataDeviceHandler for Niri {
     type SelectionUserData = ();
diff --git a/src/input.rs b/src/input.rs
index 21b57e4a..05a7d0f1 100644
--- a/src/input.rs
+++ b/src/input.rs
@@ -2,13 +2,18 @@ use std::process::Command;
 
 use smithay::backend::input::{
     AbsolutePositionEvent, Axis, AxisSource, ButtonState, Device, DeviceCapability, Event,
-    InputBackend, InputEvent, KeyState, KeyboardKeyEvent, PointerAxisEvent, PointerButtonEvent,
-    PointerMotionEvent, ProximityState, TabletToolButtonEvent, TabletToolEvent,
-    TabletToolProximityEvent, TabletToolTipEvent, TabletToolTipState,
+    GestureBeginEvent, GestureEndEvent, InputBackend, InputEvent, KeyState, KeyboardKeyEvent,
+    PointerAxisEvent, PointerButtonEvent, PointerMotionEvent, ProximityState,
+    TabletToolButtonEvent, TabletToolEvent, TabletToolProximityEvent, TabletToolTipEvent,
+    TabletToolTipState,
 };
 use smithay::backend::libinput::LibinputInputBackend;
 use smithay::input::keyboard::{keysyms, FilterResult, KeysymHandle, ModifiersState};
-use smithay::input::pointer::{AxisFrame, ButtonEvent, MotionEvent, RelativeMotionEvent};
+use smithay::input::pointer::{
+    AxisFrame, ButtonEvent, GestureHoldBeginEvent, GestureHoldEndEvent, GesturePinchBeginEvent,
+    GesturePinchEndEvent, GesturePinchUpdateEvent, GestureSwipeBeginEvent, GestureSwipeEndEvent,
+    GestureSwipeUpdateEvent, MotionEvent, RelativeMotionEvent,
+};
 use smithay::utils::SERIAL_COUNTER;
 use smithay::wayland::tablet_manager::{TabletDescriptor, TabletSeatTrait};
 
@@ -610,7 +615,108 @@ impl Niri {
                     }
                 }
             }
-            _ => {}
+            InputEvent::GestureSwipeBegin { event } => {
+                let serial = SERIAL_COUNTER.next_serial();
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_swipe_begin(
+                    self,
+                    &GestureSwipeBeginEvent {
+                        serial,
+                        time: event.time_msec(),
+                        fingers: event.fingers(),
+                    },
+                );
+            }
+            InputEvent::GestureSwipeUpdate { event } => {
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_swipe_update(
+                    self,
+                    &GestureSwipeUpdateEvent {
+                        time: event.time_msec(),
+                        delta: smithay::backend::input::GestureSwipeUpdateEvent::delta(&event),
+                    },
+                );
+            }
+            InputEvent::GestureSwipeEnd { event } => {
+                let serial = SERIAL_COUNTER.next_serial();
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_swipe_end(
+                    self,
+                    &GestureSwipeEndEvent {
+                        serial,
+                        time: event.time_msec(),
+                        cancelled: event.cancelled(),
+                    },
+                );
+            }
+            InputEvent::GesturePinchBegin { event } => {
+                let serial = SERIAL_COUNTER.next_serial();
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_pinch_begin(
+                    self,
+                    &GesturePinchBeginEvent {
+                        serial,
+                        time: event.time_msec(),
+                        fingers: event.fingers(),
+                    },
+                );
+            }
+            InputEvent::GesturePinchUpdate { event } => {
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_pinch_update(
+                    self,
+                    &GesturePinchUpdateEvent {
+                        time: event.time_msec(),
+                        delta: smithay::backend::input::GesturePinchUpdateEvent::delta(&event),
+                        scale: smithay::backend::input::GesturePinchUpdateEvent::scale(&event),
+                        rotation: smithay::backend::input::GesturePinchUpdateEvent::rotation(
+                            &event,
+                        ),
+                    },
+                );
+            }
+            InputEvent::GesturePinchEnd { event } => {
+                let serial = SERIAL_COUNTER.next_serial();
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_pinch_end(
+                    self,
+                    &GesturePinchEndEvent {
+                        serial,
+                        time: event.time_msec(),
+                        cancelled: event.cancelled(),
+                    },
+                );
+            }
+            InputEvent::GestureHoldBegin { event } => {
+                let serial = SERIAL_COUNTER.next_serial();
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_hold_begin(
+                    self,
+                    &GestureHoldBeginEvent {
+                        serial,
+                        time: event.time_msec(),
+                        fingers: event.fingers(),
+                    },
+                );
+            }
+            InputEvent::GestureHoldEnd { event } => {
+                let serial = SERIAL_COUNTER.next_serial();
+                let pointer = self.seat.get_pointer().unwrap();
+                pointer.gesture_hold_end(
+                    self,
+                    &GestureHoldEndEvent {
+                        serial,
+                        time: event.time_msec(),
+                        cancelled: event.cancelled(),
+                    },
+                );
+            }
+            InputEvent::TouchDown { .. } => (),
+            InputEvent::TouchMotion { .. } => (),
+            InputEvent::TouchUp { .. } => (),
+            InputEvent::TouchCancel { .. } => (),
+            InputEvent::TouchFrame { .. } => (),
+            InputEvent::Special(_) => (),
         }
 
         BackendAction::None
diff --git a/src/niri.rs b/src/niri.rs
index b7361e64..97195f8c 100644
--- a/src/niri.rs
+++ b/src/niri.rs
@@ -44,6 +44,7 @@ use smithay::utils::{
 use smithay::wayland::compositor::{with_states, CompositorClientState, CompositorState};
 use smithay::wayland::data_device::DataDeviceState;
 use smithay::wayland::output::OutputManagerState;
+use smithay::wayland::pointer_gestures::PointerGesturesState;
 use smithay::wayland::presentation::PresentationState;
 use smithay::wayland::shell::wlr_layer::{Layer, WlrLayerShellState};
 use smithay::wayland::shell::xdg::XdgShellState;
@@ -86,6 +87,7 @@ pub struct Niri {
     pub output_manager_state: OutputManagerState,
     pub seat_state: SeatState<Self>,
     pub tablet_state: TabletManagerState,
+    pub pointer_gestures_state: PointerGesturesState,
     pub data_device_state: DataDeviceState,
     pub popups: PopupManager,
     pub presentation_state: PresentationState,
@@ -131,6 +133,7 @@ impl Niri {
         let output_manager_state = OutputManagerState::new_with_xdg_output::<Self>(&display_handle);
         let mut seat_state = SeatState::new();
         let tablet_state = TabletManagerState::new::<Self>(&display_handle);
+        let pointer_gestures_state = PointerGesturesState::new::<Self>(&display_handle);
         let data_device_state = DataDeviceState::new::<Self>(&display_handle);
         let presentation_state =
             PresentationState::new::<Self>(&display_handle, CLOCK_MONOTONIC as u32);
@@ -243,6 +246,7 @@ impl Niri {
             output_manager_state,
             seat_state,
             tablet_state,
+            pointer_gestures_state,
             data_device_state,
             popups: PopupManager::default(),
             presentation_state,