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use sctk::reexports::client::protocol::wl_touch::Event as TouchEvent;
use crate::dpi::LogicalPosition;
use crate::event::{TouchPhase, WindowEvent};
use crate::platform_impl::wayland::event_loop::WinitState;
use crate::platform_impl::wayland::{self, DeviceId};
use super::{TouchInner, TouchPoint};
#[inline]
pub(super) fn handle_touch(
event: TouchEvent,
inner: &mut TouchInner,
winit_state: &mut WinitState,
) {
let event_sink = &mut winit_state.event_sink;
match event {
TouchEvent::Down {
surface, id, x, y, ..
} => {
let window_id = wayland::make_wid(&surface);
if !winit_state.window_map.contains_key(&window_id) {
return;
}
let scale_factor = sctk::get_surface_scale_factor(&surface) as f64;
let position = LogicalPosition::new(x, y);
event_sink.push_window_event(
WindowEvent::Touch(crate::event::Touch {
device_id: crate::event::DeviceId(crate::platform_impl::DeviceId::Wayland(
DeviceId,
)),
phase: TouchPhase::Started,
location: position.to_physical(scale_factor),
force: None,
id: id as u64,
}),
window_id,
);
inner
.touch_points
.push(TouchPoint::new(surface, position, id));
}
TouchEvent::Up { id, .. } => {
let touch_point = match inner.touch_points.iter().find(|p| p.id == id) {
Some(touch_point) => touch_point,
None => return,
};
let scale_factor = sctk::get_surface_scale_factor(&touch_point.surface) as f64;
let location = touch_point.position.to_physical(scale_factor);
let window_id = wayland::make_wid(&touch_point.surface);
event_sink.push_window_event(
WindowEvent::Touch(crate::event::Touch {
device_id: crate::event::DeviceId(crate::platform_impl::DeviceId::Wayland(
DeviceId,
)),
phase: TouchPhase::Ended,
location,
force: None,
id: id as u64,
}),
window_id,
);
}
TouchEvent::Motion { id, x, y, .. } => {
let touch_point = match inner.touch_points.iter_mut().find(|p| p.id == id) {
Some(touch_point) => touch_point,
None => return,
};
touch_point.position = LogicalPosition::new(x, y);
let scale_factor = sctk::get_surface_scale_factor(&touch_point.surface) as f64;
let location = touch_point.position.to_physical(scale_factor);
let window_id = wayland::make_wid(&touch_point.surface);
event_sink.push_window_event(
WindowEvent::Touch(crate::event::Touch {
device_id: crate::event::DeviceId(crate::platform_impl::DeviceId::Wayland(
DeviceId,
)),
phase: TouchPhase::Moved,
location,
force: None,
id: id as u64,
}),
window_id,
);
}
TouchEvent::Frame => (),
TouchEvent::Cancel => {
for touch_point in inner.touch_points.drain(..) {
let scale_factor = sctk::get_surface_scale_factor(&touch_point.surface) as f64;
let location = touch_point.position.to_physical(scale_factor);
let window_id = wayland::make_wid(&touch_point.surface);
event_sink.push_window_event(
WindowEvent::Touch(crate::event::Touch {
device_id: crate::event::DeviceId(crate::platform_impl::DeviceId::Wayland(
DeviceId,
)),
phase: TouchPhase::Cancelled,
location,
force: None,
id: touch_point.id as u64,
}),
window_id,
);
}
}
_ => (),
}
}