libinput/doc/user/meson.build
Peter Hutterer 1d9e307e2b touchpad: implement support for three-finger drag
Exposed via new configuration option this enables 3 and 4 finger
dragging on touchpads. When enabled a 3/4 finger swipe
gesture is actually a button down + motion + button up sequence.

If tapping is disabled the drag starts immediately, if tapping is
enabled the drag starts after the tap timeout/motion so we can distinguish
between a tap and a drag.

When fingers are released:
- if two fingers remain -> keep dragging
- if one finger remains -> release drag, switch to pointer motion

When 3/4 fingers are set down immediately after releasing all fingers
the drag continues, similar to the tap drag lock feature. This drag lock
is not currently configurable.

This matches the macos behavior for the same feature.

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1042>
2025-02-18 06:44:01 +00:00

219 lines
7.1 KiB
Meson

# Sphinx build
sphinx = find_program('sphinx-build-3', 'sphinx-build', required : false)
if not sphinx.found()
error('Program "sphinx-build" not found or not executable. Try building with -Ddocumentation=false')
endif
yq = find_program('yq', required : false)
if not yq.found()
warning('Program "yq" not found or not executable. Dependency list will not be built.')
endif
sphinx_config = configuration_data()
sphinx_config.set('PROJECT_NAME', meson.project_name())
sphinx_config.set('PROJECT_VERSION', meson.project_version())
sphinx_config.set('BUILDDIR', meson.current_build_dir())
sphinx_config.set('HTTP_DOC_LINK', doc_url)
git_version_page = vcs_tag(command : ['git', 'log', '-1', '--format=%H'],
fallback : 'unknown',
input : 'git_version.py.in',
output : 'git_version.py',
replace_string: '__GIT_VERSION__')
sphinx_conf_py = configure_file(input : 'conf.py.in',
output : 'conf.py',
configuration : sphinx_config)
# 404 replacements for old URLs
# The switch to sphinx caused a few pages to be renamed, sphinx uses
# filename.html whereas doxygen used whatever the @page foo was. So old docs
# *mostly* used underscores, now we're consistent with dashes.
# We can't use htaccess on the server, so let's auto-generate a 404 list
# with a basic page telling users that the link has moved. This can be
# removed in a few months, towards the end of 2018.
#
# File list is: [current-sphinx-input-file, old-generated-page]
# If they're the same they'll be ignored.
src_404s = [
[ 'absolute-axes.rst', 'absolute_axes.html'],
[ 'absolute-coordinate-ranges.rst', 'absolute_coordinate_ranges.html'],
[ 'architecture.rst', 'architecture.html'],
[ 'building.rst', 'building_libinput.html'],
[ 'button-debouncing.rst', 'button_debouncing.html'],
[ 'clickpad-softbuttons.rst', 'clickpad_softbuttons.html'],
[ 'configuration.rst', 'config_options.html'],
[ 'contributing.rst', 'contributing.html'],
[ 'development.rst', 'development.html'],
[ 'device-configuration-via-udev.rst', 'udev_config.html'],
[ 'device-quirks.rst', 'device-quirks.html'],
[ 'faqs.rst', 'faq.html'],
[ 'features.rst', 'features.html'],
[ 'gestures.rst', 'gestures.html'],
[ 'incorrectly-enabled-hires.rst', 'incorrectly-enabled-hires.html'],
[ 'middle-button-emulation.rst', 'middle_button_emulation.html'],
[ 'normalization-of-relative-motion.rst', 'motion_normalization.html'],
[ 'palm-detection.rst', 'palm_detection.html'],
[ 'pointer-acceleration.rst', 'pointer-acceleration.html'],
[ 'reporting-bugs.rst', 'reporting_bugs.html'],
[ 'scrolling.rst', 'scrolling.html'],
[ 'seats.rst', 'seats.html'],
[ 'switches.rst', 'switches.html'],
[ 't440-support.rst', 't440_support.html'],
[ 'tablet-support.rst', 'tablet-support.html'],
[ 'tapping.rst', 'tapping.html'],
[ 'test-suite.rst', 'test-suite.html'],
[ 'timestamps.rst', 'timestamps.html'],
[ 'tools.rst', 'tools.html'],
[ 'touchpad-jitter.rst', 'touchpad_jitter.html'],
[ 'touchpad-jumping-cursors.rst', 'touchpad_jumping_cursor.html'],
[ 'touchpad-pressure.rst', 'touchpad_pressure.html'],
[ 'touchpads.rst', 'touchpads.html'],
[ 'trackpoints.rst', 'trackpoints.html'],
[ 'troubleshooting.rst', 'troubleshooting.html'],
[ 'what-is-libinput.rst', 'what_is_libinput.html'],
]
dst_404s = []
foreach s404 : src_404s
target = s404[0]
oldpage = s404[1]
tname = target.split('.rst')[0]
oname = oldpage.split('.html')[0]
if tname != oname
config_404 = configuration_data()
config_404.set('TARGET', '@0@.html'.format(tname))
c = configure_file(input : '404.rst',
output : '@0@.rst'.format(oname),
configuration : config_404)
dst_404s += [c]
endif
endforeach
src_rst = files(
# dot drawings
'dot/seats-sketch.gv',
'dot/seats-sketch-libinput.gv',
'dot/libinput-stack-wayland.gv',
'dot/libinput-stack-xorg.gv',
'dot/libinput-stack-gnome.gv',
'dot/evemu.gv',
'dot/libinput-record.gv',
# svgs
'svg/button-debouncing-wave-diagram.svg',
'svg/button-scrolling.svg',
'svg/clickfinger.svg',
'svg/clickfinger-distance.svg',
'svg/edge-scrolling.svg',
'svg/gesture-2fg-ambiguity.svg',
'svg/palm-detection.svg',
'svg/pinch-gestures.svg',
'svg/pinch-gestures-softbuttons.svg',
'svg/ptraccel-custom.svg',
'svg/ptraccel-linear.svg',
'svg/ptraccel-low-dpi.svg',
'svg/ptraccel-touchpad.svg',
'svg/ptraccel-trackpoint.svg',
'svg/software-buttons.svg',
'svg/software-buttons-conditions.svg',
'svg/software-buttons-thumbpress.svg',
'svg/software-buttons-visualized.svg',
'svg/swipe-gestures.svg',
'svg/tablet-area.svg',
'svg/tablet-axes.svg',
'svg/tablet-cintiq24hd-modes.svg',
'svg/tablet-interfaces.svg',
'svg/tablet-intuos-modes.svg',
'svg/tablet-left-handed.svg',
'svg/tablet-out-of-bounds.svg',
'svg/tablet.svg',
'svg/tap-n-drag.svg',
'svg/thumb-detection.svg',
'svg/top-software-buttons.svg',
'svg/touchscreen-gestures.svg',
'svg/trackpoint-delta-illustration.svg',
'svg/twofinger-scrolling.svg',
# rst files
'absolute-axes.rst',
'absolute-coordinate-ranges.rst',
'architecture.rst',
'building.rst',
'button-debouncing.rst',
'clickpad-softbuttons.rst',
'clickpad-with-right-button.rst',
'contributing.rst',
'device-configuration-via-udev.rst',
'device-quirks.rst',
'drag-3fg.rst',
'faqs.rst',
'gestures.rst',
'incorrectly-enabled-hires.rst',
'ignoring-devices.rst',
'middle-button-emulation.rst',
'normalization-of-relative-motion.rst',
'palm-detection.rst',
'pointer-acceleration.rst',
'reporting-bugs.rst',
'scrolling.rst',
'seats.rst',
'switches.rst',
't440-support.rst',
'tablet-support.rst',
'tapping.rst',
'test-suite.rst',
'timestamps.rst',
'tablet-debugging.rst',
'tools.rst',
'touchpad-jumping-cursors.rst',
'touchpad-pressure.rst',
'touchpad-pressure-debugging.rst',
'touchpad-jitter.rst',
'touchpad-thumb-detection.rst',
'touchpads.rst',
'trackpoints.rst',
'trackpoint-configuration.rst',
'what-is-libinput.rst',
'wheel-api.rst',
'features.rst',
'development.rst',
'troubleshooting.rst',
'configuration.rst',
)
src_sphinx = []
foreach f : src_rst
sf = configure_file(input: f,
output: '@PLAINNAME@',
copy : true)
src_sphinx += [ sf ]
endforeach
configure_file(input: 'index.rst',
output: 'index.rst',
configuration: sphinx_config)
dependencies_config = configuration_data()
if yq.found()
distributions = ['fedora', 'ubuntu', 'debian', 'arch', 'alpine']
foreach distro : distributions
yq_filter = '.distributions[] | select(.name == "@0@") | .packages | join(" ")'.format(distro)
deps = run_command(yq, '-r', yq_filter,
dir_gitlab_ci / 'config.yml',
check: true).stdout()
dependencies_config.set('@0@_PACKAGES'.format(distro.to_upper()), deps)
endforeach
endif
configure_file(input: 'dependencies.rst',
output: 'dependencies.rst',
configuration: dependencies_config)
# do not use -j, it breaks on Ubuntu
sphinx_output_dir = 'Documentation'
custom_target('sphinx',
input : [ sphinx_conf_py, git_version_page ] + src_sphinx + dst_404s,
output : [ sphinx_output_dir ],
command : [ sphinx, '-q', '-b', 'html',
'-d', meson.current_build_dir() / 'doctrees',
meson.current_build_dir(), sphinx_output_dir],
build_by_default : true)