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fix(wayland): prevent libinput unset axis error on scroll #194

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fix(wayland): prevent libinput unset axis error on scroll #194

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4a80088
Improve handling of scroll wheel events
uint82 Jul 8, 2026
e39ba41
Add PointerScrollEvent to listen.rs
uint82 Jul 8, 2026
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21 changes: 16 additions & 5 deletions src/linux/wayland/listen.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,7 @@ use crate::rdev::{Event, KeyboardState, ListenError};
use crate::{Button, EventType};
use input::event::PointerEvent;
use input::event::keyboard::{KeyState, KeyboardEventTrait};
use input::event::pointer::{Axis, ButtonState};
use input::event::pointer::{Axis, ButtonState, PointerScrollEvent};
use input::{Event as LibEvent, Libinput, LibinputInterface};
use libc::{O_RDONLY, O_RDWR, O_WRONLY};
use std::fs::{File, OpenOptions};
Expand Down Expand Up @@ -51,10 +51,21 @@ fn convert_type(libevent: LibEvent) -> Option<EventType> {
x: btn.absolute_x(),
y: btn.absolute_y(),
}),
LibEvent::Pointer(PointerEvent::ScrollWheel(btn)) => Some(EventType::Wheel {
delta_x: -(btn.scroll_value_v120(Axis::Horizontal) / 120.0) as i64,
delta_y: -(btn.scroll_value_v120(Axis::Vertical) / 120.0) as i64,
}),
LibEvent::Pointer(PointerEvent::ScrollWheel(btn)) => {
let delta_x = if btn.has_axis(Axis::Horizontal) {
-(btn.scroll_value_v120(Axis::Horizontal) / 120.0) as i64
} else {
0
};

let delta_y = if btn.has_axis(Axis::Vertical) {
-(btn.scroll_value_v120(Axis::Vertical) / 120.0) as i64
} else {
0
};

Some(EventType::Wheel { delta_x, delta_y })
}
_ => {
// dbg!(format!("Received unhandlded event {lib:?}"));
None
Expand Down