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X11: Fix scroll wheel delta on i3/etc. (#514)

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Fixes #447
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Francesca Frangipane 2018-05-13 08:44:23 -04:00 • committed by GitHub
parent 1819be1173
commit 15a4fec3d9
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2 changed files with 12 additions and 7 deletions
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1
CHANGELOG.md
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@ -3,6 +3,7 @@
- `Icon::to_cardinals` is no longer public, since it was never supposed to be.
- Wayland: improve diagnostics if initialization fails
- Fix some system event key doesn't work when focused, do not block keyevent forward to system on macOS
- On X11, the scroll wheel position is now correctly reset on i3 and other WMs that have the same quirk.
# Version 0.14.0 (2018-05-09)

18
src/platform/linux/x11/mod.rs
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@ -804,15 +804,19 @@ impl EventsLoop {
let window_id = mkwid(xev.event);
let device_id = mkdid(xev.deviceid);
let mut devices = self.devices.borrow_mut();
let physical_device = match devices.get_mut(&DeviceId(xev.sourceid)) {
Some(device) => device,
None => return,
};
if let Some(all_info) = DeviceInfo::get(&self.display, ffi::XIAllDevices) {
let mut devices = self.devices.borrow_mut();
for device_info in all_info.iter() {
if device_info.deviceid == xev.sourceid {
physical_device.reset_scroll_position(device_info);
if device_info.deviceid == xev.sourceid
// This is needed for resetting to work correctly on i3, and
// presumably some other WMs. On those, `XI_Enter` doesn't include
// the physical device ID, so both `sourceid` and `deviceid` are
// the virtual device.
|| device_info.attachment == xev.sourceid {
let device_id = DeviceId(device_info.deviceid);
if let Some(device) = devices.get_mut(&device_id) {
device.reset_scroll_position(device_info);
}
}
}
}