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plugin: allow disabling the button debouncing feature

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Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1249>
This commit is contained in:
Peter Hutterer 2025-06-25 13:35:38 +10:00
parent 7ac051ab41
commit cf52552eef
1 changed files with 42 additions and 0 deletions
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42
src/libinput-plugin-button-debounce.c
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@ -30,6 +30,7 @@
#include "util-strings.h"
#include "evdev-frame.h"
#include "libinput-feature.h"
#include "libinput-log.h"
#include "libinput-plugin-button-debounce.h"
#include "libinput-plugin.h"
@ -138,6 +139,8 @@ struct plugin_device {
enum debounce_state state;
bool spurious_enabled;
bool want_feature_disabled;
struct libinput_plugin_timer *timer;
struct libinput_plugin_timer *timer_short;
};
@ -191,6 +194,20 @@ log_debounce_bug(struct plugin_device *device, enum debounce_event event)
debounce_state_to_str(device->state));
}
static inline void
debounce_maybe_disable(struct plugin_device *device)
{
if (device->state != DEBOUNCE_STATE_IS_UP)
return;
if (device->want_feature_disabled) {
plugin_log_debug(device->parent->plugin,
"%s: disabled button debouncing on request\n",
libinput_device_get_name(device->device));
device->state = DEBOUNCE_STATE_DISABLED;
}
}
static inline void
debounce_set_state(struct plugin_device *device, enum debounce_state new_state)
{
@ -371,6 +388,7 @@ debounce_is_up_delaying_handle_event(struct plugin_device *device,
case DEBOUNCE_EVENT_TIMEOUT:
case DEBOUNCE_EVENT_OTHERBUTTON:
debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
debounce_maybe_disable(device);
debounce_notify_button(device, frame, LIBINPUT_BUTTON_STATE_RELEASED);
break;
}
@ -398,6 +416,7 @@ debounce_is_up_delaying_spurious_handle_event(struct plugin_device *device,
break;
case DEBOUNCE_EVENT_OTHERBUTTON:
debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
debounce_maybe_disable(device);
debounce_notify_button(device, frame, LIBINPUT_BUTTON_STATE_RELEASED);
break;
}
@ -423,12 +442,14 @@ debounce_is_up_detecting_spurious_handle_event(struct plugin_device *device,
break;
case DEBOUNCE_EVENT_TIMEOUT:
debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
debounce_maybe_disable(device);
break;
case DEBOUNCE_EVENT_TIMEOUT_SHORT:
debounce_set_state(device, DEBOUNCE_STATE_IS_UP_WAITING);
break;
case DEBOUNCE_EVENT_OTHERBUTTON:
debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
debounce_maybe_disable(device);
break;
}
}
@ -483,6 +504,7 @@ debounce_is_up_waiting_handle_event(struct plugin_device *device,
case DEBOUNCE_EVENT_TIMEOUT:
case DEBOUNCE_EVENT_OTHERBUTTON:
debounce_set_state(device, DEBOUNCE_STATE_IS_UP);
debounce_maybe_disable(device);
break;
}
}
@ -660,6 +682,7 @@ debounce_plugin_handle_frame(struct plugin_device *device,
!is_down ? DEBOUNCE_STATE_IS_DOWN
: DEBOUNCE_STATE_IS_UP);
flushed = false;
debounce_maybe_disable(device);
}
device->button_usage = e->usage;
@ -787,6 +810,24 @@ debounce_plugin_device_removed(struct libinput_plugin *libinput_plugin,
}
}
static void
debounce_plugin_feature_disabled(struct libinput_plugin *libinput_plugin,
struct libinput_device *device,
enum libinput_feature feature)
{
if (feature != LIBINPUT_FEATURE_BUTTON_DEBOUNCING)
return;
struct plugin_data *plugin = libinput_plugin_get_user_data(libinput_plugin);
struct plugin_device *pd;
list_for_each(pd, &plugin->devices, link) {
if (pd->device == device) {
pd->want_feature_disabled = true;
return;
}
}
}
static const struct libinput_plugin_interface interface = {
.run = NULL,
.destroy = plugin_destroy,
@ -795,6 +836,7 @@ static const struct libinput_plugin_interface interface = {
.device_added = debounce_plugin_device_added,
.device_removed = debounce_plugin_device_removed,
.evdev_frame = debounce_plugin_evdev_frame,
.feature_disabled = debounce_plugin_feature_disabled,
};
void