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libinput: support <dragLock>sticky<dragLock> and enable it by default

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It is recommended by libinput:
https://lists.freedesktop.org/archives/wayland-devel/2024-November/043860.html
This commit is contained in:
tokyo4j 2025-06-07 19:27:05 +09:00 • committed by Johan Malm
parent cc84cee75b
commit 22d319cce8
5 changed files with 26 additions and 6 deletions
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10
docs/labwc-config.5.scd
View file

@ -958,7 +958,7 @@ extending outward from the snapped edge.
<tap>yes</tap>
<tapButtonMap></tapButtonMap>
<tapAndDrag></tapAndDrag>
<dragLock></dragLock>
<dragLock>sticky</dragLock>
<middleEmulation></middleEmulation>
<disableWhileTyping></disableWhileTyping>
<clickMethod></clickMethod>
@ -1027,9 +1027,11 @@ extending outward from the snapped edge.
Enable or disable tap-and-drag for this category. Tap-and-drag processes
a tap immediately followed by a finger down as the start of a drag.
*<libinput><device><dragLock>* [yes|no]
Enable or disable drag lock for this category. Drag lock ignores a
momentary release of a finger during tap-and-dragging.
*<libinput><device><dragLock>* [yes|no|sticky]
Enable or disable drag lock for this category. Drag lock ignores a temporary
release of a finger during tap-and-dragging. Both *yes* and *sticky* enable
drag lock, but if *yes* is set, the drag lock expires after a timeout.
Default is *sticky*.
*<libinput><device><middleEmulation>* [yes|no]
Enable or disable middle button emulation for this category. Middle

2
docs/rc.xml.all
View file

@ -632,7 +632,7 @@
<tap>yes</tap>
<tapButtonMap></tapButtonMap>
<tapAndDrag></tapAndDrag>
<dragLock></dragLock>
<dragLock>sticky</dragLock>
<middleEmulation></middleEmulation>
<disableWhileTyping></disableWhileTyping>
<clickMethod></clickMethod>

4
meson.build
View file

@ -110,6 +110,10 @@ conf_data.set10('HAVE_RSVG', have_rsvg)
conf_data.set10('HAVE_LIBSFDO', have_libsfdo)
foreach sym : ['LIBINPUT_CONFIG_DRAG_LOCK_ENABLED_STICKY']
conf_data.set10('HAVE_' + sym, cc.has_header_symbol('libinput.h', sym, dependencies: input))
endforeach
if get_option('static_analyzer').enabled()
add_project_arguments(['-fanalyzer'], language: 'c')
endif

6
src/config/libinput.c
View file

@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <string.h>
#include <strings.h>
#include "config.h"
#include "common/mem.h"
#include "common/list.h"
#include "common/string-helpers.h"
@ -19,7 +19,11 @@ libinput_category_init(struct libinput_category *l)
l->tap = LIBINPUT_CONFIG_TAP_ENABLED;
l->tap_button_map = LIBINPUT_CONFIG_TAP_MAP_LRM;
l->tap_and_drag = -1;
#if HAVE_LIBINPUT_CONFIG_DRAG_LOCK_ENABLED_STICKY
l->drag_lock = LIBINPUT_CONFIG_DRAG_LOCK_ENABLED_STICKY;
#else
l->drag_lock = -1;
#endif
l->accel_profile = -1;
l->middle_emu = -1;
l->dwt = -1;

10
src/config/rcxml.c
View file

@ -771,6 +771,16 @@ fill_libinput_category(char *nodename, char *content, struct parser_state *state
? LIBINPUT_CONFIG_DRAG_ENABLED
: LIBINPUT_CONFIG_DRAG_DISABLED;
} else if (!strcasecmp(nodename, "dragLock")) {
if (!strcasecmp(content, "sticky")) {
#if HAVE_LIBINPUT_CONFIG_DRAG_LOCK_ENABLED_STICKY
state->current_libinput_category->drag_lock =
LIBINPUT_CONFIG_DRAG_LOCK_ENABLED_STICKY;
#else
wlr_log(WLR_ERROR, "<dragLock>sticky</dragLock> is"
" only supported in libinput >= 1.27");
#endif
return;
}
int ret = parse_bool(content, -1);
if (ret < 0) {
return;