Commit graph

3 commits

Author SHA1 Message Date
Peter Hutterer
d1dbbb7328 plugin: register plugins for the plugin-specific usages
The debounce, wheel/wheel-low-res, double-tool and eraser-button plugins can limit
themselves to a specific usage.

The mtdev plugin needs to pass each each event to mtdev and the proximity
timer plugin needs to get each event's timestamp so they cannot be
restricted.

The forced-tool could be restricted but effectively any event on the
devices it works on will have one of those usages set so there's no
point.

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1271>
2025-08-01 14:29:44 +10:00
Peter Hutterer
36b2afae82 plugin: ignore high-resolution wheel events from disabled wheels
Make sure we drop any potential high-resolution wheel events from a
device that isn't supposed to have them.

Where the device's axes were disabled due to a quirk, re-enabling the
axes means the device's events won't be filtered anymore. Our wheel
emulation plugin thus emulates high-resolution wheel events in addition
to the hardware events.

Fix this by simply filtering out any high-resolution wheel events on any
device that uses this plugin.

Closes #1160

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1279>
2025-07-24 09:13:12 +10:00
Peter Hutterer
1dec6f98b0 plugins: add a plugin to emulate high-resolution wheel events
Fixes a regression causing missing scroll events on devices where the
kernel only sets REL_WHEEL/REL_HWHEEL but not the corresponding
hires events. On those devices we would get the legacy axis events but
no longer the new ones.

The mouse wheel plugin will correctly emulate missing hires events
but it doesn't attach to devices where the hires bit is never set.

This plugin can be very simple - since we know we enabled the code on
this device we don't need to keep any extra state around. If our frame
handler is called for this device we want to add the hi-res events.

Theoretically this breaks if the device has only one hi-res axis enabled
but not the other one (i.e. REL_WHEEL_HI_RES but only REL_HWHEEL) but
that's too theoretical to worry about.

Closes #1156

Fixes: 31854a829a ("plugin: only register the wheel plugin on devices that have a wheel")
Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1268>
2025-07-14 11:14:15 +10:00