diff --git a/backend/libinput/tablet_pad.c b/backend/libinput/tablet_pad.c index 2558d09c..7c196bf1 100644 --- a/backend/libinput/tablet_pad.c +++ b/backend/libinput/tablet_pad.c @@ -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; diff --git a/include/rootston/seat.h b/include/rootston/seat.h index 0e3043dd..31ddd6fa 100644 --- a/include/rootston/seat.h +++ b/include/rootston/seat.h @@ -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); diff --git a/include/wlr/types/wlr_tablet_pad.h b/include/wlr/types/wlr_tablet_pad.h index b71f5b9a..ec291c75 100644 --- a/include/wlr/types/wlr_tablet_pad.h +++ b/include/wlr/types/wlr_tablet_pad.h @@ -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 { diff --git a/include/wlr/types/wlr_tablet_v2.h b/include/wlr/types/wlr_tablet_v2.h index 358f0719..4b2fffe4 100644 --- a/include/wlr/types/wlr_tablet_v2.h +++ b/include/wlr/types/wlr_tablet_v2.h @@ -5,6 +5,11 @@ #include #include +#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 */ diff --git a/rootston/seat.c b/rootston/seat.c index 455e9b00..8f84fc4b 100644 --- a/rootston/seat.c +++ b/rootston/seat.c @@ -5,6 +5,7 @@ #include #include #include +#include #include #include #include @@ -16,6 +17,8 @@ #include "rootston/seat.h" #include "rootston/xcursor.h" +#include + 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); diff --git a/types/wlr_tablet_pad.c b/types/wlr_tablet_pad.c index 3d25d685..f7d6c436 100644 --- a/types/wlr_tablet_pad.c +++ b/types/wlr_tablet_pad.c @@ -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) { diff --git a/types/wlr_tablet_v2.c b/types/wlr_tablet_v2.c index 3e4eaafc..f980aa0d 100644 --- a/types/wlr_tablet_v2.c +++ b/types/wlr_tablet_v2.c @@ -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; +}