The &grab pointer we used to pass as userdata was the address of the function
argument which goes out of scope at the end of the function. This works fine
for devices immediately opened but when a device connects later, the address
may have been re-used since and it's content is undefined. If not NULL, we
end up grabbing the device.
Instead pass the grab option in which is guaranteed to live until the end of
main.
https://gitlab.freedesktop.org/libinput/libinput/issues/26
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
(cherry picked from commit 0a13223c39)
This looked good on paper but clearly no-one (including myself) ever tested this
in a real-life situation or they would've noticed that the constant factor is
missing, causing a segfault on the first two-finger scroll event, touchpad
gesture or button scrolling.
Adding the constant factor makes the API much worse and the benefit is
unclear, so out of the window it goes. We can revisit this for libinput 1.12
but this isn't going to make the next release.
This reverts commit d8bd650540.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This adds a third profile to the available profiles to map device-specific
speed to an acceleration factor, fully defined by the caller.
There has been a consistent call for different acceleration profiles in
libinput, but very little specifics in what actually needs to be changed.
"faster horses" and whatnot (some notable exceptions in e.g. bug 101139).
Attempts to change the actual acceleration function will likely break things
for others.
This approach opens up the profile itself to a user-specific acceleration
curve. A caller can set an acceleration curve by defining a number of points
on that curve to map input speed to an output factor. That factor is applied
to the input delta.
libinput does relatively little besides mapping the deltas to the
device-specific speed, querying the curve for that speed and applying that
factor. The curve is device-specific, the input speed is in device units/ms.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We had one shared parsing function for all config options so tools parse
options that don't actually make sense (e.g. --quiet or --show-keycodes for
libinput-list-devices).
This patch splits the actual libinput device configuration out and reshuffles
everything to make use of that. One large patch, because splitting this up is
more confusing than dumping it all.
This means the actual option parsing is partially duplicated between debug-gui
and debug-events but hey, not everything in life is perfect.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This is the first tool of many more to come to enable users to gather
information aobut their devices and/or usage of these devices. Previously,
these required the users to record events, submit them to a bugzilla, have me
run various scripts over it and then decree that the scripts have spoken.
Push some of this into the hands of the users so they can query the numbers
locally and start investigating (or at least get an idea of what's happening).
This tool measures the time deltas between touch up and touch down and prints
a basic summary, together with the ability to print a dat file with the data
for visualization by e.g. gnuplot. Eventually, more of the current analysis
scripts will be moved into this or other helpers.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Now that the debug-gui is a user-visible tool, make sure the usage reflects
the right command name.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Chaining args together inside a single binary would be nice, but it gets nasty
quickly (as I found out adding 3, 4 extra commands). Switch over to using a
git-style exec-ing command where libinput merely changes argv[0] and then
executes whatever it assembled. And those binaries can hide in libexec so they
don't clutter up the global namespace.
This also makes it a lot easier to write man pages, adopt the same style as
git uses.
Compatibilty wrapper scripts are provided for libinput-list-devices and
libinput-debug events. These warn the user about the changed command, then
exec the new one. Expect these wrappers to be removed at some point in the
future.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Supresses any printf statements from the tool itself, i.e. it skips printing
any of the events.
Makes it easier to debug the internal state since it's not intermixed with a
whole lot of messages about the events that are generated. Best combined with
--verbose (yes, hilarious, isn't it...)
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Hans de Goede <hdegoede@redhat.com>
libinput-debug-events prints keycodes as they come in. This makes it dangerous
to be run by users (especially in the background) because it will leak
sensitive information as it is typed. Obfuscate the base set of keycodes
by default, require a --show-keycodes switch to show it.
The few times we actually need the keycodes, we can run the switch in the
debugging tool.
This does not affect keys outside of the main block on the keyboard (F-keys,
multimedia keys).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
../tools/shared.h:66:1: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
void tools_usage();
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
The previously hardcoded button map for tapping is 1/2/3 to LRM. But the
middle button is a common feature on the desktop (used for paste, most
prominently) and three-finger tapping is almost impossible to do reliably on
some touchpads (e.g. the T440 has a recognition rate of ~1 in 5).
Left and right buttons have a prominent physical position (either softbuttons
or physical buttons) so make the tap order configurable. Those that require
middle buttons reliably can use the [software] buttons for left/right and
2-finger tap for a middle button.
https://bugs.freedesktop.org/show_bug.cgi?id=96962
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
There are a number of use-cases where tapping may be desirable, but
tap-and-drag is not, e.g. where tapping is used to select multiple items in a
list. Having tap-and-drag on hinders this, and the nature of the interaction
means it cannot be detected based on timeouts, movement thresholds, etc.
Provide an option instead to turn tap-an-drag off. Tap-and-drag remains
enabled by default (though tapping is disabled by default).
For the touchpad tap state diagram, the new option disables the transition
from state TOUCH to state TAPPED and releases the button immediately instead.
This means that multitap-and-drag is disabled too since we now just loop
around in the single-tap state for multitap.
It also makes tapping more responsive - we don't have to wait for the timeout
before we know whether it's a tap event. The first touch time is noted, we now
send the button press with the time of the first touch and the release with
the time of the release. This ensures a realistic time diff between the two
events.
https://bugs.freedesktop.org/show_bug.cgi?id=93502
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.netto>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
The quartett of new config functions is:
libinput_device_config_accel_get_profiles
libinput_device_config_accel_get_profile
libinput_device_config_accel_set_profile
libinput_device_config_accel_get_default_profile
The profile defines how the pointer acceleration works, from a very high-level
perspective. Two profiles are on offer, "adaptive", the standard one we have
used so far and "flat" which is a simple multiplier of input deltas and
provides 1:1 mapping of device movement vs pointer movement.
The speed setting is on top of the profile, a speed of 0 (default) is the
equivalent to "no pointer acceleration". This is popular among gamers and
users of switchable-dpi mice.
The flat profile unnormalizes the deltas, i.e. you get what the device does
and any device below 800dpi will feel excruciatingly slow. The speed range
[-1, 1] maps into 0-200% of the speed. At 200%, a delta of 1 is translated
into a 2 pixel movement, anything higher makes it rather pointless.
The flat profile is currently available for all pointer devices but touchpads.
https://bugs.freedesktop.org/show_bug.cgi?id=89485
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
DWT can interfere with some applications where keyboard and touchpad use at
the same time is common, e.g. games but also anything that requires a
combination of frequent pointer motion and use of keyboard shortcuts.
Expose a toggle to disable DWT where needed.
https://bugs.freedesktop.org/show_bug.cgi?id=90624
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Issues an EVIOCGRAB on the openend devices, providing exclusive access. Makes
it easier for debugging, so moving the pointer doesn't accidentally trigger
other stuff.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
We need the options during open_restricted(), so instead of the caller just
passing in a custom userdata, let them wrap it into a tools_context.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
To quote Bryce Harrington from [1]:
"MIT has released software under several slightly different licenses,
including the old 'X11 License' or 'MIT License'. Some code under this
license was in fact included in X.org's Xserver in the past. However,
X.org now prefers the MIT Expat License as the standard (which,
confusingly, is also referred to as the 'MIT License'). See
http://cgit.freedesktop.org/xorg/xserver/tree/COPYING
When Wayland started, it was Kristian Høgsberg's intent to license it
compatibly with X.org. "I wanted Wayland to be usable (license-wise)
whereever X was usable." But, the text of the older X11 License was
taken for Wayland, rather than X11's current standard. This patch
corrects this by swapping in the intended text."
libinput is a fork of weston and thus inherited the original license intent
and the license boilerplate itself.
See this thread on wayland-devel here for a discussion:
http://lists.freedesktop.org/archives/wayland-devel/2015-May/022301.html
[1] http://lists.freedesktop.org/archives/wayland-devel/2015-June/022552.html
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Acked-by: Jonas Ådahl <jadahl@gmail.com>
Adds the following quartett of functions to enable/disable middle mouse button
emulation on a device:
libinput_device_config_middle_emulation_is_available()
libinput_device_config_middle_emulation_set_enabled()
libinput_device_config_middle_emulation_get_enabled()
libinput_device_config_middle_emulation_get_default_enabled()
This patch only adds the config framework, it is not hooked up to anything
yet.
Note: like other features this is merely the config option, some devices will
provide middle button emulation without exposing it as configuration. i.e. the
return value of libinput_device_config_middle_emulation_is_available() only
tells you whether you can _configure_ middle button emulation.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
