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Implement basic tablet_pad handling (bound to keyboard focus)

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This commit is contained in:
Markus Ongyerth 2018-04-26 12:31:25 +02:00
parent f696e980f1
commit f375246657
7 changed files with 506 additions and 6 deletions
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2
backend/libinput/tablet_pad.c
View file

@ -124,6 +124,8 @@ void handle_tablet_pad_button(struct libinput_event *event,
usec_to_msec(libinput_event_tablet_pad_get_time_usec(pevent));
wlr_event.button = libinput_event_tablet_pad_get_button_number(pevent);
wlr_event.mode = libinput_event_tablet_pad_get_mode(pevent);
wlr_event.group = libinput_tablet_pad_mode_group_get_index(
libinput_event_tablet_pad_get_mode_group(pevent));
switch (libinput_event_tablet_pad_get_button_state(pevent)) {
case LIBINPUT_BUTTON_STATE_PRESSED:
wlr_event.state = WLR_BUTTON_PRESSED;

23
include/rootston/seat.h
View file

@ -31,6 +31,7 @@ struct roots_seat {
struct wl_list pointers;
struct wl_list touch;
struct wl_list tablet_tools;
struct wl_list tablet_pads;
struct wl_listener new_drag_icon;
struct wl_listener destroy;
@ -80,12 +81,34 @@ struct roots_touch {
struct roots_tablet_tool {
struct roots_seat *seat;
struct wlr_input_device *device;
struct wlr_tablet_v2_tablet *tablet_v2;
struct wl_listener device_destroy;
struct wl_listener axis;
struct wl_listener proximity;
struct wl_listener tip;
struct wl_listener button;
struct wl_list link;
struct wl_list pads; // struct roots_tablet_pad::tablet_link
};
struct roots_tablet_pad {
struct wl_list link;
struct wl_list tablet_link;
struct wlr_tablet_v2_tablet_pad *tablet_v2_pad;
struct roots_seat *seat;
struct wlr_input_device *device;
struct wl_listener device_destroy;
struct wl_listener attach;
struct wl_listener button;
struct wl_listener ring;
struct wl_listener strip;
struct roots_tablet_tool *tablet;
struct wl_listener tablet_destroy;
};
struct roots_seat *roots_seat_create(struct roots_input *input, char *name);

2
include/wlr/types/wlr_tablet_pad.h
View file

@ -20,6 +20,7 @@ struct wlr_tablet_pad {
struct wl_signal button;
struct wl_signal ring;
struct wl_signal strip;
struct wl_signal attach_tablet; //struct wlr_tablet_tool
} events;
size_t button_count;
@ -52,6 +53,7 @@ struct wlr_event_tablet_pad_button {
uint32_t button;
enum wlr_button_state state;
unsigned int mode;
unsigned int group;
};
enum wlr_tablet_pad_ring_source {

42
include/wlr/types/wlr_tablet_v2.h
View file

@ -5,6 +5,11 @@
#include <wlr/types/wlr_seat.h>
#include <wlr/types/wlr_input_device.h>
#include "tablet-unstable-v2-protocol.h"
struct wlr_tablet_tool_client_v2;
struct wlr_tablet_pad_client_v2;
struct wlr_tablet_manager_v2 {
struct wl_global *wl_global;
struct wl_list clients; // wlr_tablet_manager_client_v2::link
@ -30,6 +35,8 @@ struct wlr_tablet_v2_tablet_tool {
struct wl_list clients; // wlr_tablet_tool_client_v2::tablet_link
struct wl_listener tool_destroy;
struct wlr_tablet_tool_client_v2 *current_client;
};
struct wlr_tablet_v2_tablet_pad {
@ -38,7 +45,12 @@ struct wlr_tablet_v2_tablet_pad {
struct wlr_input_device *wlr_device;
struct wl_list clients; // wlr_tablet_pad_client_v2::tablet_link
size_t group_count;
uint32_t *groups;
struct wl_listener pad_destroy;
struct wlr_tablet_pad_client_v2 *current_client;
};
struct wlr_tablet_v2_tablet *wlr_make_tablet(
@ -59,4 +71,34 @@ struct wlr_tablet_v2_tablet_tool *wlr_make_tablet_tool(
struct wlr_tablet_manager_v2 *wlr_tablet_v2_create(struct wl_display *display);
void wlr_tablet_v2_destroy(struct wlr_tablet_manager_v2 *manager);
uint32_t wlr_send_tablet_v2_tablet_tool_proximity_in(
struct wlr_tablet_v2_tablet_tool *tool,
struct wlr_tablet_v2_tablet *tablet,
struct wlr_surface *surface);
void wlr_send_tablet_v2_tablet_tool_motion(
struct wlr_tablet_v2_tablet_tool *tool, double x, double y);
void wlr_send_tablet_v2_tablet_tool_proximity_out(
struct wlr_tablet_v2_tablet_tool *tool);
uint32_t wlr_send_tablet_v2_tablet_pad_enter(
struct wlr_tablet_v2_tablet_pad *pad,
struct wlr_tablet_v2_tablet *tablet,
struct wlr_surface *surface);
void wlr_send_tablet_v2_tablet_pad_button(
struct wlr_tablet_v2_tablet_pad *pad, size_t button,
uint32_t time, enum zwp_tablet_pad_v2_button_state state);
void wlr_send_tablet_v2_tablet_pad_strip( struct wlr_tablet_v2_tablet_pad *pad,
uint32_t strip, double position, bool finger, uint32_t time);
void wlr_send_tablet_v2_tablet_pad_ring(struct wlr_tablet_v2_tablet_pad *pad,
uint32_t ring, double position, bool finger, uint32_t time);
uint32_t wlr_send_tablet_v2_tablet_pad_leave(struct wlr_tablet_v2_tablet_pad *pad,
struct wlr_surface *surface);
uint32_t wlr_send_tablet_v2_tablet_pad_mode(struct wlr_tablet_v2_tablet_pad *pad,
size_t group, uint32_t mode, uint32_t time);
#endif /* WLR_TYPES_WLR_TABLET_V2_H */

179
rootston/seat.c
View file

@ -5,6 +5,7 @@
#include <time.h>
#include <wayland-server.h>
#include <wlr/config.h>
#include <wlr/backend/libinput.h>
#include <wlr/types/wlr_idle.h>
#include <wlr/types/wlr_layer_shell.h>
#include <wlr/types/wlr_xcursor_manager.h>
@ -16,6 +17,8 @@
#include "rootston/seat.h"
#include "rootston/xcursor.h"
#include <libinput.h>
static void handle_keyboard_key(struct wl_listener *listener, void *data) {
struct roots_keyboard *keyboard =
wl_container_of(listener, keyboard, keyboard_key);
@ -393,6 +396,7 @@ struct roots_seat *roots_seat_create(struct roots_input *input, char *name) {
wl_list_init(&seat->pointers);
wl_list_init(&seat->touch);
wl_list_init(&seat->tablet_tools);
wl_list_init(&seat->tablet_pads);
wl_list_init(&seat->views);
wl_list_init(&seat->drag_icons);
@ -546,13 +550,152 @@ static void seat_add_touch(struct roots_seat *seat,
roots_seat_configure_cursor(seat);
}
static void handle_tablet_pad_destroy(struct wl_listener *listener,
void *data) {
struct roots_tablet_pad *tablet_pad =
wl_container_of(listener, tablet_pad, device_destroy);
struct roots_seat *seat = tablet_pad->seat;
wl_list_remove(&tablet_pad->device_destroy.link);
wl_list_remove(&tablet_pad->tablet_destroy.link);
wl_list_remove(&tablet_pad->attach.link);
wl_list_remove(&tablet_pad->link);
wl_list_remove(&tablet_pad->tablet_link);
wl_list_remove(&tablet_pad->button.link);
wl_list_remove(&tablet_pad->strip.link);
wl_list_remove(&tablet_pad->ring.link);
free(tablet_pad);
seat_update_capabilities(seat);
}
static void handle_pad_tool_destroy(struct wl_listener *listener, void *data) {
struct roots_tablet_pad *pad =
wl_container_of(listener, pad, tablet_destroy);
pad->tablet = NULL;
wl_list_remove(&pad->tablet_link);
wl_list_init(&pad->tablet_link);
wl_list_remove(&pad->tablet_destroy.link);
wl_list_init(&pad->tablet_destroy.link);
}
static void attach_tablet_pad(struct roots_tablet_pad *pad,
struct roots_tablet_tool *tool) {
wlr_log(L_DEBUG, "Attaching tablet pad \"%s\" to tablet tool \"%s\"",
pad->device->name, tool->device->name);
pad->tablet = tool;
wl_list_remove(&pad->tablet_link);
wl_list_insert(&tool->pads, &pad->tablet_link);
wl_signal_add(&tool->device->events.destroy,
&pad->tablet_destroy);
}
static void handle_tablet_pad_attach(struct wl_listener *listener, void *data) {
struct roots_tablet_pad *pad =
wl_container_of(listener, pad, attach);
struct wlr_tablet_tool *wlr_tool = data;
struct roots_tablet_tool *tool = wlr_tool->data;
attach_tablet_pad(pad, tool);
}
static void handle_tablet_pad_ring(struct wl_listener *listener, void *data) {
struct roots_tablet_pad *pad =
wl_container_of(listener, pad, ring);
struct wlr_event_tablet_pad_ring *event = data;
wlr_send_tablet_v2_tablet_pad_ring(pad->tablet_v2_pad,
event->ring, event->position,
event->source == WLR_TABLET_PAD_RING_SOURCE_FINGER,
event->time_msec);
}
static void handle_tablet_pad_strip(struct wl_listener *listener, void *data) {
struct roots_tablet_pad *pad =
wl_container_of(listener, pad, strip);
struct wlr_event_tablet_pad_strip *event = data;
wlr_send_tablet_v2_tablet_pad_strip(pad->tablet_v2_pad,
event->strip, event->position,
event->source == WLR_TABLET_PAD_STRIP_SOURCE_FINGER,
event->time_msec);
}
static void handle_tablet_pad_button(struct wl_listener *listener, void *data) {
struct roots_tablet_pad *pad =
wl_container_of(listener, pad, button);
struct wlr_event_tablet_pad_button *event = data;
wlr_send_tablet_v2_tablet_pad_mode(pad->tablet_v2_pad,
event->group, event->mode, event->time_msec);
wlr_send_tablet_v2_tablet_pad_button(pad->tablet_v2_pad,
event->button, event->time_msec, event->state);
}
static void seat_add_tablet_pad(struct roots_seat *seat,
struct wlr_input_device *device) {
// TODO
// FIXME: This needs to be stored on the roots_tablet_tool
struct roots_desktop *desktop = seat->input->server->desktop;
(void)wlr_make_tablet_pad(desktop->tablet_v2, seat->seat, device);
struct roots_tablet_pad *tablet_pad =
calloc(sizeof(struct roots_tablet_pad), 1);
if (!tablet_pad) {
wlr_log(L_ERROR, "could not allocate tablet_pad for seat");
return;
}
device->data = tablet_pad;
tablet_pad->device = device;
tablet_pad->seat = seat;
wl_list_init(&tablet_pad->tablet_link);
wl_list_insert(&seat->tablet_pads, &tablet_pad->link);
tablet_pad->device_destroy.notify = handle_tablet_pad_destroy;
wl_signal_add(&tablet_pad->device->events.destroy,
&tablet_pad->device_destroy);
tablet_pad->tablet_destroy.notify = handle_pad_tool_destroy;
tablet_pad->attach.notify = handle_tablet_pad_attach;
wl_signal_add(&tablet_pad->device->tablet_pad->events.attach_tablet, &tablet_pad->attach);
tablet_pad->button.notify = handle_tablet_pad_button;
wl_signal_add(&tablet_pad->device->tablet_pad->events.button, &tablet_pad->button);
tablet_pad->strip.notify = handle_tablet_pad_strip;
wl_signal_add(&tablet_pad->device->tablet_pad->events.strip, &tablet_pad->strip);
tablet_pad->ring.notify = handle_tablet_pad_ring;
wl_signal_add(&tablet_pad->device->tablet_pad->events.ring, &tablet_pad->ring);
struct roots_desktop *desktop = seat->input->server->desktop;
tablet_pad->tablet_v2_pad =
wlr_make_tablet_pad(desktop->tablet_v2, seat->seat, device);
/* Search for a sibling tablet */
if (!wlr_input_device_is_libinput(device)) {
/* We can only do this on libinput devices */
return;
}
struct libinput_device_group *group =
libinput_device_get_device_group(wlr_libinput_get_device_handle(device));
struct roots_tablet_tool *tool;
wl_list_for_each(tool, &seat->tablet_tools, link) {
if (!wlr_input_device_is_libinput(tool->device)) {
continue;
}
struct libinput_device *li_dev =
wlr_libinput_get_device_handle(tool->device);
if (libinput_device_get_device_group(li_dev) == group) {
attach_tablet_pad(tablet_pad, tool);
break;
}
}
}
static void handle_tablet_tool_destroy(struct wl_listener *listener,
@ -564,6 +707,7 @@ static void handle_tablet_tool_destroy(struct wl_listener *listener,
wlr_cursor_detach_input_device(seat->cursor->cursor, tablet_tool->device);
wl_list_remove(&tablet_tool->device_destroy.link);
wl_list_remove(&tablet_tool->link);
wl_list_remove(&tablet_tool->pads);
free(tablet_tool);
seat_update_capabilities(seat);
@ -581,6 +725,7 @@ static void seat_add_tablet_tool(struct roots_seat *seat,
device->data = tablet_tool;
tablet_tool->device = device;
tablet_tool->seat = seat;
wl_list_init(&tablet_tool->pads);
wl_list_insert(&seat->tablet_tools, &tablet_tool->link);
tablet_tool->device_destroy.notify = handle_tablet_tool_destroy;
@ -592,8 +737,23 @@ static void seat_add_tablet_tool(struct roots_seat *seat,
struct roots_desktop *desktop = seat->input->server->desktop;
// FIXME: This needs to be stored on the roots_tablet_tool
(void)wlr_make_tablet(desktop->tablet_v2, seat->seat, device);
tablet_tool->tablet_v2 =
wlr_make_tablet(desktop->tablet_v2, seat->seat, device);
struct libinput_device_group *group =
libinput_device_get_device_group(wlr_libinput_get_device_handle(device));
struct roots_tablet_pad *pad;
wl_list_for_each(pad, &seat->tablet_pads, link) {
if (!wlr_input_device_is_libinput(pad->device)) {
continue;
}
struct libinput_device *li_dev =
wlr_libinput_get_device_handle(pad->device);
if (libinput_device_get_device_group(li_dev) == group) {
attach_tablet_pad(pad, tablet_tool);
}
}
}
void roots_seat_add_device(struct roots_seat *seat,
@ -859,6 +1019,13 @@ void roots_seat_set_focus(struct roots_seat *seat, struct roots_view *view) {
wlr_seat_keyboard_notify_enter(seat->seat, view->wlr_surface,
keyboard->keycodes, keyboard->num_keycodes,
&keyboard->modifiers);
/* FIXME: Move this to a better place */
struct roots_tablet_pad *pad;
wl_list_for_each(pad, &seat->tablet_pads, link) {
if (pad->tablet) {
wlr_send_tablet_v2_tablet_pad_enter(pad->tablet_v2_pad, pad->tablet->tablet_v2, view->wlr_surface);
}
}
} else {
wlr_seat_keyboard_notify_enter(seat->seat, view->wlr_surface,
NULL, 0, NULL);

1
types/wlr_tablet_pad.c
View file

@ -10,6 +10,7 @@ void wlr_tablet_pad_init(struct wlr_tablet_pad *pad,
wl_signal_init(&pad->events.button);
wl_signal_init(&pad->events.ring);
wl_signal_init(&pad->events.strip);
wl_signal_init(&pad->events.attach_tablet);
}
void wlr_tablet_pad_destroy(struct wlr_tablet_pad *pad) {

263
types/wlr_tablet_v2.c
View file

@ -68,6 +68,10 @@ struct wlr_tablet_tool_client_v2 {
struct wl_list tool_link;
struct wl_client *client;
struct wl_resource *resource;
uint32_t proximity_serial;
struct wl_event_source *frame_source;
};
struct wlr_tablet_pad_client_v2 {
@ -76,6 +80,10 @@ struct wlr_tablet_pad_client_v2 {
struct wl_client *client;
struct wl_resource *resource;
uint32_t enter_serial;
uint32_t mode_serial;
uint32_t leave_serial;
size_t button_count;
size_t group_count;
@ -284,6 +292,10 @@ static void destroy_tablet_tool(struct wl_resource *resource) {
struct wlr_tablet_tool_client_v2 *client =
wl_resource_get_user_data(resource);
if (client->frame_source) {
wl_event_source_remove(client->frame_source);
}
wl_list_remove(&client->seat_link);
wl_list_remove(&client->tool_link);
free(client);
@ -706,6 +718,13 @@ struct wlr_tablet_v2_tablet_pad *wlr_make_tablet_pad(
return NULL;
}
pad->group_count = wl_list_length(&wlr_pad->groups);
pad->groups = calloc(pad->group_count, sizeof(int));
if (!pad->groups) {
free(pad);
return NULL;
}
pad->wlr_pad = wlr_pad;
wl_list_init(&pad->clients);
@ -920,3 +939,247 @@ struct wlr_tablet_manager_v2 *wlr_tablet_v2_create(struct wl_display *display) {
return tablet;
}
/* Actual protocol foo */
static void send_tool_frame(void *data) {
struct wlr_tablet_tool_client_v2 *tool = data;
zwp_tablet_tool_v2_send_frame(tool->resource, 0);
tool->frame_source = NULL;
}
static void queue_tool_frame(struct wlr_tablet_tool_client_v2 *tool) {
if (!tool->frame_source) {
tool->frame_source = wl_event_loop_add_idle(NULL, send_tool_frame, tool);
}
}
uint32_t wlr_send_tablet_v2_tablet_tool_proximity_in(
struct wlr_tablet_v2_tablet_tool *tool,
struct wlr_tablet_v2_tablet *tablet,
struct wlr_surface *surface) {
struct wl_client *client = wl_resource_get_client(surface->resource);
struct wlr_tablet_client_v2 *tablet_tmp;
struct wlr_tablet_client_v2 *tablet_client = NULL;
wl_list_for_each(tablet_tmp, &tablet->clients, tablet_link) {
if (tablet_tmp->client == client) {
tablet_client = tablet_tmp;
break;
}
}
// Couldn't find the client binding for the surface's client. Either
// the client didn't bind tablet_v2 at all, or not for the relevant
// seat
if (!tablet_client) {
return 0;
}
struct wlr_tablet_tool_client_v2 *tool_tmp;
struct wlr_tablet_tool_client_v2 *tool_client;
wl_list_for_each(tool_tmp, &tool->clients, tool_link) {
if (tool_tmp->client == client) {
tool_client = tool_tmp;
break;
}
}
// Couldn't find the client binding for the surface's client. Either
// the client didn't bind tablet_v2 at all, or not for the relevant
// seat
if (!tool_client) {
return 0;
}
tool->current_client = tool_client;
/* Pre-increment keeps 0 clean. wraparound would be after 2^32
* proximity_in. Someone wants to do the math how long that would take?
*/
uint32_t serial = ++tool_client->proximity_serial;
zwp_tablet_tool_v2_send_proximity_in(tool_client->resource, serial,
tablet_client->resource, surface->resource);
queue_tool_frame(tool_client);
return serial;
}
void wlr_send_tablet_v2_tablet_tool_motion(
struct wlr_tablet_v2_tablet_tool *tool, double x, double y) {
if (!tool->current_client) {
return;
}
zwp_tablet_tool_v2_send_motion(tool->current_client->resource,
wl_fixed_from_double(x), wl_fixed_from_double(y));
queue_tool_frame(tool->current_client);
}
void wlr_send_tablet_v2_tablet_tool_proximity_out(
struct wlr_tablet_v2_tablet_tool *tool) {
if (tool->current_client) {
zwp_tablet_tool_v2_send_proximity_out(tool->current_client->resource);
// XXX: Get the time for the frame
if (tool->current_client->frame_source) {
wl_event_source_remove(tool->current_client->frame_source);
send_tool_frame(tool->current_client);
}
}
}
uint32_t wlr_send_tablet_v2_tablet_pad_enter(
struct wlr_tablet_v2_tablet_pad *pad,
struct wlr_tablet_v2_tablet *tablet,
struct wlr_surface *surface) {
struct wl_client *client = wl_resource_get_client(surface->resource);
struct wlr_tablet_client_v2 *tablet_tmp;
struct wlr_tablet_client_v2 *tablet_client = NULL;
wl_list_for_each(tablet_tmp, &tablet->clients, tablet_link) {
if (tablet_tmp->client == client) {
tablet_client = tablet_tmp;
break;
}
}
// Couldn't find the client binding for the surface's client. Either
// the client didn't bind tablet_v2 at all, or not for the relevant
// seat
if (!tablet_client) {
return 0;
}
struct wlr_tablet_pad_client_v2 *pad_tmp;
struct wlr_tablet_pad_client_v2 *pad_client;
wl_list_for_each(pad_tmp, &pad->clients, pad_link) {
if (pad_tmp->client == client) {
pad_client = pad_tmp;
break;
}
}
// Couldn't find the client binding for the surface's client. Either
// the client didn't bind tablet_v2 at all, or not for the relevant
// seat
if (!pad_client) {
return 0;
}
pad->current_client = pad_client;
/* Pre-increment keeps 0 clean. wraparound would be after 2^32
* proximity_in. Someone wants to do the math how long that would take?
*/
uint32_t serial = ++pad_client->enter_serial;
zwp_tablet_pad_v2_send_enter(pad_client->resource, serial,
tablet_client->resource, surface->resource);
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
uint32_t time = now.tv_nsec / 1000;
for (size_t i = 0; i < pad->group_count; ++i) {
zwp_tablet_pad_group_v2_send_mode_switch(
pad_client->groups[i], time, serial, pad->groups[i]);
}
return serial;
}
void wlr_send_tablet_v2_tablet_pad_button(
struct wlr_tablet_v2_tablet_pad *pad, size_t button,
uint32_t time, enum zwp_tablet_pad_v2_button_state state) {
if (pad->current_client) {
zwp_tablet_pad_v2_send_button(pad->current_client->resource,
time, button, state);
}
}
void wlr_send_tablet_v2_tablet_pad_strip(struct wlr_tablet_v2_tablet_pad *pad,
uint32_t strip, double position, bool finger, uint32_t time) {
if (!pad->current_client &&
pad->current_client->strips &&
pad->current_client->strips[strip]) {
return;
}
struct wl_resource *resource = pad->current_client->strips[strip];
if (finger) {
zwp_tablet_pad_strip_v2_send_source(resource, ZWP_TABLET_PAD_STRIP_V2_SOURCE_FINGER);
}
if (position < 0) {
zwp_tablet_pad_strip_v2_send_stop(resource);
} else {
zwp_tablet_pad_strip_v2_send_position(resource, position * 65535);
}
zwp_tablet_pad_strip_v2_send_frame(resource, time);
}
void wlr_send_tablet_v2_tablet_pad_ring(struct wlr_tablet_v2_tablet_pad *pad,
uint32_t ring, double position, bool finger, uint32_t time) {
if (!pad->current_client ||
!pad->current_client->rings ||
!pad->current_client->rings[ring]) {
return;
}
struct wl_resource *resource = pad->current_client->rings[ring];
if (finger) {
zwp_tablet_pad_ring_v2_send_source(resource, ZWP_TABLET_PAD_RING_V2_SOURCE_FINGER);
}
if (position < 0) {
zwp_tablet_pad_ring_v2_send_stop(resource);
} else {
zwp_tablet_pad_ring_v2_send_angle(resource, position);
}
zwp_tablet_pad_ring_v2_send_frame(resource, time);
}
uint32_t wlr_send_tablet_v2_tablet_pad_leave(struct wlr_tablet_v2_tablet_pad *pad,
struct wlr_surface *surface) {
if (!pad->current_client ||
wl_resource_get_client(surface->resource) != pad->current_client->client) {
return 0;
}
/* Pre-increment keeps 0 clean. wraparound would be after 2^32
* proximity_in. Someone wants to do the math how long that would take?
*/
uint32_t serial = ++pad->current_client->leave_serial;
zwp_tablet_pad_v2_send_leave(pad->current_client->resource, serial, surface->resource);
return serial;
}
uint32_t wlr_send_tablet_v2_tablet_pad_mode(struct wlr_tablet_v2_tablet_pad *pad,
size_t group, uint32_t mode, uint32_t time) {
if (!pad->current_client ||
!pad->current_client->groups ||
!pad->current_client->groups[group] ) {
return 0;
}
if (pad->groups[group] == mode) {
return 0;
}
pad->groups[group] = mode;
/* Pre-increment keeps 0 clean. wraparound would be after 2^32
* proximity_in. Someone wants to do the math how long that would take?
*/
uint32_t serial = ++pad->current_client->mode_serial;
zwp_tablet_pad_group_v2_send_mode_switch(
pad->current_client->groups[group], time, serial, mode);
return serial;
}