[Wayland-bugs] [Bug 93583] Cannot use multiple finger tapping to perform middle click

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93583

--- Comment #24 from Mildred Ki'Lya <mildred-bug.freedesktop at mildred.fr> ---
Created attachment 120985
  --> https://bugs.freedesktop.org/attachment.cgi?id=120985&action=edit
libinput-debug-events --enable-tap with semi_mt=true and patch applied

With your patch, I successfully get the expected triple tap behaviour. Extract
from the logs:

tap state: TAP_STATE_IDLE → TAP_EVENT_TOUCH → TAP_STATE_TOUCH
tap state: TAP_STATE_TOUCH → TAP_EVENT_TOUCH → TAP_STATE_TOUCH_2
tap state: TAP_STATE_TOUCH_2 → TAP_EVENT_TOUCH → TAP_STATE_TOUCH_3
touch x/y: 959/1062
touch x/y: 959/1062
touch x/y: 959/1062

Is this patch ready to be pushed to libinput or would it break other touchpads?

udevadm info /sys/class/input/event13

P: /devices/platform/i8042/serio2/input/input74/event13
N: input/event13
S: input/by-path/platform-i8042-serio-2-event-mouse
E: DEVLINKS=/dev/input/by-path/platform-i8042-serio-2-event-mouse
E: DEVNAME=/dev/input/event13
E: DEVPATH=/devices/platform/i8042/serio2/input/input74/event13
E: ID_INPUT=1
E: ID_INPUT_HEIGHT_MM=45
E: ID_INPUT_TOUCHPAD=1
E: ID_INPUT_WIDTH_MM=94
E: ID_PATH=platform-i8042-serio-2
E: ID_PATH_TAG=platform-i8042-serio-2
E: ID_SERIAL=noserial
E: LIBINPUT_ATTR_RESOLUTION_HINT=31x31
E: LIBINPUT_DEVICE_GROUP=11/2/e/0:isa0060/serio2
E: LIBINPUT_MODEL_ELANTECH_TOUCHPAD=1
E: MAJOR=13
E: MINOR=77
E: SUBSYSTEM=input
E: USEC_INITIALIZED=93333553088

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