From fa39fd178dd276316c37b9a98e2bfd5e337d4da0 Mon Sep 17 00:00:00 2001 From: Markus Ongyerth Date: Thu, 17 May 2018 13:45:06 +0200 Subject: [PATCH] Split tablet_v2 implementation for easier maintainance --- include/types/wlr_tablet_v2.h | 87 +++- types/meson.build | 5 +- types/tablet_v2/wlr_tablet_v2.c | 307 ++++++++++++++ types/tablet_v2/wlr_tablet_v2_pad.c | 565 +++++++++++++++++++++++++ types/tablet_v2/wlr_tablet_v2_tablet.c | 128 ++++++ types/tablet_v2/wlr_tablet_v2_tool.c | 489 +++++++++++++++++++++ 6 files changed, 1579 insertions(+), 2 deletions(-) create mode 100644 types/tablet_v2/wlr_tablet_v2.c create mode 100644 types/tablet_v2/wlr_tablet_v2_pad.c create mode 100644 types/tablet_v2/wlr_tablet_v2_tablet.c create mode 100644 types/tablet_v2/wlr_tablet_v2_tool.c diff --git a/include/types/wlr_tablet_v2.h b/include/types/wlr_tablet_v2.h index 21e2d962..ca776734 100644 --- a/include/types/wlr_tablet_v2.h +++ b/include/types/wlr_tablet_v2.h @@ -5,16 +5,101 @@ #include #include +struct wlr_tablet_seat_v2 { + struct wl_list link; + struct wlr_seat *wlr_seat; + struct wlr_tablet_manager_v2 *manager; + + struct wl_list tablets; // wlr_tablet_v2_tablet::link + struct wl_list tools; + struct wl_list pads; + + struct wl_list clients; //wlr_tablet_seat_v2_client::link; + + struct wl_listener seat_destroy; +}; + +struct wlr_tablet_seat_client_v2 { + struct wl_list seat_link; + struct wl_list client_link; + struct wl_client *wl_client; + struct wl_resource *resource; + + struct wlr_tablet_manager_client_v2 *client; + struct wlr_seat_client *seat; + + struct wl_listener seat_client_destroy; + + struct wl_list tools; //wlr_tablet_tool_client_v2::link + struct wl_list tablets; //wlr_tablet_client_v2::link + struct wl_list pads; //wlr_tablet_pad_client_v2::link +}; + +struct wlr_tablet_client_v2 { + struct wl_list seat_link; // wlr_tablet_seat_client_v2::tablet + struct wl_list tablet_link; // wlr_tablet_v2_tablet::clients + struct wl_client *client; + struct wl_resource *resource; +}; + +struct wlr_tablet_pad_client_v2 { + struct wl_list seat_link; + struct wl_list pad_link; + struct wl_client *client; + struct wl_resource *resource; + struct wlr_tablet_v2_tablet_pad *pad; + + uint32_t enter_serial; + uint32_t mode_serial; + uint32_t leave_serial; + + size_t button_count; + + size_t group_count; + struct wl_resource **groups; + + size_t ring_count; + struct wl_resource **rings; + + size_t strip_count; + struct wl_resource **strips; +}; + +struct wlr_tablet_tool_client_v2 { + struct wl_list seat_link; + struct wl_list tool_link; + struct wl_client *client; + struct wl_resource *resource; + struct wlr_tablet_v2_tablet_tool *tool; + struct wlr_tablet_seat_client_v2 *seat; + + uint32_t proximity_serial; + + struct wl_event_source *frame_source; +}; + +struct tablet_pad_auxiliary_user_data { + struct wlr_tablet_pad_client_v2 *pad; + size_t index; +}; + struct wlr_tablet_client_v2 *tablet_client_from_resource(struct wl_resource *resource); void destroy_tablet_v2(struct wl_resource *resource); +void add_tablet_client(struct wlr_tablet_seat_client_v2 *seat, struct wlr_tablet_v2_tablet *tablet); void destroy_tablet_pad_v2(struct wl_resource *resource); struct wlr_tablet_pad_client_v2 *tablet_pad_client_from_resource(struct wl_resource *resource); +void add_tablet_pad_client(struct wlr_tablet_seat_client_v2 *seat, struct wlr_tablet_v2_tablet_pad *pad); void destroy_tablet_tool_v2(struct wl_resource *resource); struct wlr_tablet_tool_client_v2 *tablet_tool_client_from_resource(struct wl_resource *resource); +void add_tablet_tool_client(struct wlr_tablet_seat_client_v2 *seat, struct wlr_tablet_v2_tablet_tool *tool); struct wlr_tablet_seat_client_v2 *tablet_seat_client_from_resource(struct wl_resource *resource); -static void wlr_tablet_seat_client_v2_destroy(struct wl_resource *resource); +void wlr_tablet_seat_client_v2_destroy(struct wl_resource *resource); +struct wlr_tablet_seat_v2 *get_or_create_tablet_seat( + struct wlr_tablet_manager_v2 *manager, + struct wlr_seat *wlr_seat); + #endif /* TYPES_WLR_TABLET_V2_H */ diff --git a/types/meson.build b/types/meson.build index 5570d0c5..03f678a1 100644 --- a/types/meson.build +++ b/types/meson.build @@ -43,7 +43,10 @@ lib_wlr_types = static_library( 'wlr_screenshooter.c', 'wlr_server_decoration.c', 'wlr_surface.c', - 'wlr_tablet_v2.c', + 'tablet_v2/wlr_tablet_v2.c', + 'tablet_v2/wlr_tablet_v2_pad.c', + 'tablet_v2/wlr_tablet_v2_tablet.c', + 'tablet_v2/wlr_tablet_v2_tool.c', 'wlr_tablet_pad.c', 'wlr_tablet_tool.c', 'wlr_tablet_tool_tool.c', diff --git a/types/tablet_v2/wlr_tablet_v2.c b/types/tablet_v2/wlr_tablet_v2.c new file mode 100644 index 00000000..45f1dd99 --- /dev/null +++ b/types/tablet_v2/wlr_tablet_v2.c @@ -0,0 +1,307 @@ +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "tablet-unstable-v2-protocol.h" + +struct wlr_tablet_manager_client_v2 { + struct wl_list link; + struct wl_client *client; + struct wl_resource *resource; + struct wlr_tablet_manager_v2 *manager; + + struct wl_listener client_destroy; + struct wl_list tablet_seats; // wlr_tablet_seat_client_v2::link +}; + +static void handle_wlr_seat_destroy(struct wl_listener *listener, void *data) { + struct wlr_tablet_seat_v2 *seat = + wl_container_of(listener, seat, seat_destroy); + + wl_list_remove(&seat->link); + wl_list_remove(&seat->seat_destroy.link); + + struct wlr_tablet_seat_client_v2 *client; + struct wlr_tablet_seat_client_v2 *tmp; + wl_list_for_each_safe(client, tmp, &seat->clients, seat_link) { + wlr_tablet_seat_client_v2_destroy(client->resource); + } +} + +static struct wlr_tablet_seat_v2 *create_tablet_seat( + struct wlr_tablet_manager_v2 *manager, + struct wlr_seat *wlr_seat) { + struct wlr_tablet_seat_v2 *tablet_seat = + calloc(1, sizeof(struct wlr_tablet_seat_v2)); + if (!tablet_seat) { + return NULL; + } + + tablet_seat->manager = manager; + tablet_seat->wlr_seat = wlr_seat; + + wl_list_init(&tablet_seat->clients); + + wl_list_init(&tablet_seat->tablets); + wl_list_init(&tablet_seat->tools); + wl_list_init(&tablet_seat->pads); + + tablet_seat->seat_destroy.notify = handle_wlr_seat_destroy; + wl_signal_add(&wlr_seat->events.destroy, &tablet_seat->seat_destroy); + + wl_list_insert(&manager->seats, &tablet_seat->link); + return tablet_seat; +} + +struct wlr_tablet_seat_v2 *get_or_create_tablet_seat( + struct wlr_tablet_manager_v2 *manager, + struct wlr_seat *wlr_seat) { + struct wlr_tablet_seat_v2 *pos; + wl_list_for_each(pos, &manager->seats, link) { + if (pos->wlr_seat == wlr_seat) { + return pos; + } + } + + return create_tablet_seat(manager, wlr_seat); +} + +static struct wlr_tablet_manager_client_v2 *tablet_manager_client_from_resource(struct wl_resource *resource); + +static void tablet_seat_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} + +static struct zwp_tablet_seat_v2_interface seat_impl = { + .destroy = tablet_seat_destroy, +}; + +struct wlr_tablet_seat_client_v2 *tablet_seat_client_from_resource( + struct wl_resource *resource) { + assert(wl_resource_instance_of(resource, &zwp_tablet_seat_v2_interface, + &seat_impl)); + return wl_resource_get_user_data(resource); +} + +void wlr_tablet_seat_client_v2_destroy(struct wl_resource *resource) { + struct wlr_tablet_seat_client_v2 *seat = tablet_seat_client_from_resource(resource); + if (!seat) { + return; + } + + struct wlr_tablet_client_v2 *tablet; + struct wlr_tablet_client_v2 *tmp_tablet; + wl_list_for_each_safe(tablet, tmp_tablet, &seat->tablets, seat_link) { + destroy_tablet_v2(tablet->resource); + } + + struct wlr_tablet_pad_client_v2 *pad; + struct wlr_tablet_pad_client_v2 *tmp_pad; + wl_list_for_each_safe(pad, tmp_pad, &seat->pads, seat_link) { + destroy_tablet_pad_v2(pad->resource); + } + + struct wlr_tablet_tool_client_v2 *tool; + struct wlr_tablet_tool_client_v2 *tmp_tool; + wl_list_for_each_safe(tool, tmp_tool, &seat->tools, seat_link) { + destroy_tablet_tool_v2(tool->resource); + } + + wl_list_remove(&seat->seat_client_destroy.link); + + free(seat); + wl_resource_set_user_data(resource, NULL); +} + +static void handle_seat_client_destroy(struct wl_listener *listener, void *data) { + struct wlr_tablet_seat_client_v2 *seat = + wl_container_of(listener, seat, seat_client_destroy); + wlr_tablet_seat_client_v2_destroy(seat->resource); +} + +static void tablet_manager_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} + +static void get_tablet_seat(struct wl_client *wl_client, struct wl_resource *resource, + uint32_t id, struct wl_resource *seat_resource) +{ + struct wlr_tablet_manager_client_v2 *manager = tablet_manager_client_from_resource(resource); + if (!manager) { + /* Inert manager, just set up the resource for later + * destruction, without allocations or advertising things + */ + wl_resource_set_implementation(seat_resource, &seat_impl, NULL, + wlr_tablet_seat_client_v2_destroy); + return; + } + struct wlr_seat_client *seat = wlr_seat_client_from_resource(seat_resource); + struct wlr_tablet_seat_v2 *tablet_seat = + get_or_create_tablet_seat(manager->manager, seat->seat); + + if (!tablet_seat) {// This can only happen when we ran out of memory + wl_client_post_no_memory(wl_client); + return; + } + + struct wlr_tablet_seat_client_v2 *seat_client = + calloc(1, sizeof(struct wlr_tablet_seat_client_v2)); + if (tablet_seat == NULL) { + wl_client_post_no_memory(wl_client); + return; + } + + seat_client->resource = + wl_resource_create(wl_client, &zwp_tablet_seat_v2_interface, 1, id); + if (seat_client->resource == NULL) { + free(seat_client); + wl_client_post_no_memory(wl_client); + return; + } + wl_resource_set_implementation(seat_client->resource, &seat_impl, seat_client, + wlr_tablet_seat_client_v2_destroy); + + + seat_client->seat = seat; + seat_client->client = manager; + seat_client->wl_client = wl_client; + wl_list_init(&seat_client->tools); + wl_list_init(&seat_client->tablets); + wl_list_init(&seat_client->pads); + + seat_client->seat_client_destroy.notify = handle_seat_client_destroy; + wl_signal_add(&seat->events.destroy, &seat_client->seat_client_destroy); + + wl_list_insert(&manager->tablet_seats, &seat_client->client_link); + wl_list_insert(&tablet_seat->clients, &seat_client->seat_link); + + // We need to emmit the devices allready on the seat + struct wlr_tablet_v2_tablet *tablet_pos; + wl_list_for_each(tablet_pos, &tablet_seat->tablets, link) { + add_tablet_client(seat_client, tablet_pos); + } + + struct wlr_tablet_v2_tablet_pad *pad_pos; + wl_list_for_each(pad_pos, &tablet_seat->pads, link) { + add_tablet_pad_client(seat_client, pad_pos); + } + + struct wlr_tablet_v2_tablet_tool *tool_pos; + wl_list_for_each(tool_pos, &tablet_seat->tools, link) { + add_tablet_tool_client(seat_client, tool_pos); + } +} + +static struct zwp_tablet_manager_v2_interface manager_impl = { + .get_tablet_seat = get_tablet_seat, + .destroy = tablet_manager_destroy, +}; + +static struct wlr_tablet_manager_client_v2 *tablet_manager_client_from_resource ( + struct wl_resource *resource) { + assert(wl_resource_instance_of(resource, &zwp_tablet_manager_v2_interface, + &manager_impl)); + return wl_resource_get_user_data(resource); +} + +static void wlr_tablet_manager_v2_destroy(struct wl_resource *resource) { + struct wlr_tablet_manager_client_v2 *client = tablet_manager_client_from_resource(resource); + if (!client) { + return; + } + + struct wlr_tablet_seat_client_v2 *pos; + struct wlr_tablet_seat_client_v2 *tmp; + wl_list_for_each_safe(pos, tmp, &client->tablet_seats, client_link) { + wlr_tablet_seat_client_v2_destroy(pos->resource); + } + + wl_list_remove(&client->link); + //wl_list_remove(&client->client_destroy.link); + + free(client); + wl_resource_set_user_data(resource, NULL); +} + +static void tablet_v2_bind(struct wl_client *wl_client, void *data, + uint32_t version, uint32_t id) { + struct wlr_tablet_manager_v2 *manager = data; + assert(wl_client && manager); + + struct wlr_tablet_manager_client_v2 *client = + calloc(1, sizeof(struct wlr_tablet_manager_client_v2)); + if (client == NULL) { + wl_client_post_no_memory(wl_client); + return; + } + + wl_list_init(&client->tablet_seats); + + client->resource = + wl_resource_create(wl_client, &zwp_tablet_manager_v2_interface, version, id); + if (client->resource == NULL) { + free(client); + wl_client_post_no_memory(wl_client); + return; + } + client->client = wl_client; + client->manager = manager; + + wl_resource_set_implementation(client->resource, &manager_impl, client, + wlr_tablet_manager_v2_destroy); + wl_list_insert(&manager->clients, &client->link); +} + +static void handle_display_destroy(struct wl_listener *listener, void *data) { + struct wlr_tablet_manager_v2 *tablet = + wl_container_of(listener, tablet, display_destroy); + wlr_tablet_v2_destroy(tablet); +} + +void wlr_tablet_v2_destroy(struct wlr_tablet_manager_v2 *manager) { + struct wlr_tablet_manager_client_v2 *tmp; + struct wlr_tablet_manager_client_v2 *pos; + + wl_list_for_each_safe(pos, tmp, &manager->clients, link) { + wlr_tablet_manager_v2_destroy(pos->resource); + } + + wl_global_destroy(manager->wl_global); + free(manager); +} + +struct wlr_tablet_manager_v2 *wlr_tablet_v2_create(struct wl_display *display) { + struct wlr_tablet_manager_v2 *tablet = + calloc(1, sizeof(struct wlr_tablet_manager_v2)); + if (!tablet) { + return NULL; + } + + wl_list_init(&tablet->clients); + wl_list_init(&tablet->seats); + + tablet->display_destroy.notify = handle_display_destroy; + wl_display_add_destroy_listener(display, &tablet->display_destroy); + + tablet->wl_global = wl_global_create(display, + &zwp_tablet_manager_v2_interface, 1, tablet, tablet_v2_bind); + if (tablet->wl_global == NULL) { + free(tablet); + return NULL; + } + + return tablet; +} diff --git a/types/tablet_v2/wlr_tablet_v2_pad.c b/types/tablet_v2/wlr_tablet_v2_pad.c new file mode 100644 index 00000000..c3627ef6 --- /dev/null +++ b/types/tablet_v2/wlr_tablet_v2_pad.c @@ -0,0 +1,565 @@ +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif + +#include "tablet-unstable-v2-protocol.h" +#include +#include +#include +#include +#include +#include +#include + +void destroy_tablet_pad_v2(struct wl_resource *resource) { + struct wlr_tablet_pad_client_v2 *pad = + tablet_pad_client_from_resource(resource); + + if (!pad) { + return; + } + + wl_list_remove(&pad->seat_link); + wl_list_remove(&pad->pad_link); + + /* This isn't optimal, if the client destroys the resources in another + * order, it will be disconnected. + * But this makes things *way* easier for us, and (untested) I doubt + * clients will destroy it in another order. + */ + for (size_t i = 0; i < pad->group_count; ++i) { + if (pad->groups[i]) { + wl_resource_destroy(pad->groups[i]); + } + } + free(pad->groups); + + for (size_t i = 0; i < pad->ring_count; ++i) { + if (pad->rings[i]) { + wl_resource_destroy(pad->rings[i]); + } + } + free(pad->rings); + + for (size_t i = 0; i < pad->strip_count; ++i) { + if (pad->strips[i]) { + wl_resource_destroy(pad->strips[i]); + } + } + free(pad->strips); + + free(pad); + wl_resource_set_user_data(resource, NULL); +} + +static void handle_tablet_pad_v2_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} + +static void destroy_tablet_pad_ring_v2(struct wl_resource *resource) { + struct tablet_pad_auxiliary_user_data *aux = wl_resource_get_user_data(resource); + + if (!aux) { + return; + } + + aux->pad->rings[aux->index] = NULL; + free(aux); + wl_resource_set_user_data(resource, NULL); +} + +static void handle_tablet_pad_ring_v2_set_feedback(struct wl_client *client, + struct wl_resource *resource, const char *description, + uint32_t serial) { + struct tablet_pad_auxiliary_user_data *aux = wl_resource_get_user_data(resource); + if (!aux) { + return; + } + + struct wlr_tablet_v2_event_feedback evt = { + .serial = serial, + .description = description, + .index = aux->index + }; + + wl_signal_emit(&aux->pad->pad->events.ring_feedback, &evt); +} + +static void handle_tablet_pad_ring_v2_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} + +static struct zwp_tablet_pad_ring_v2_interface tablet_pad_ring_impl = { + .set_feedback = handle_tablet_pad_ring_v2_set_feedback, + .destroy = handle_tablet_pad_ring_v2_destroy, +}; + +static void destroy_tablet_pad_strip_v2(struct wl_resource *resource) { + struct tablet_pad_auxiliary_user_data *aux = wl_resource_get_user_data(resource); + if (!aux) { + return; + } + + aux->pad->strips[aux->index] = NULL; + free(aux); + wl_resource_set_user_data(resource, NULL); +} + +static void handle_tablet_pad_strip_v2_set_feedback(struct wl_client *client, + struct wl_resource *resource, const char *description, + uint32_t serial) { + struct tablet_pad_auxiliary_user_data *aux = wl_resource_get_user_data(resource); + if (!aux) { + return; + } + + struct wlr_tablet_v2_event_feedback evt = { + .serial = serial, + .description = description, + .index = aux->index + }; + + wl_signal_emit(&aux->pad->pad->events.strip_feedback, &evt); +} + +static void handle_tablet_pad_strip_v2_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} + +static struct zwp_tablet_pad_strip_v2_interface tablet_pad_strip_impl = { + .set_feedback = handle_tablet_pad_strip_v2_set_feedback, + .destroy = handle_tablet_pad_strip_v2_destroy, +}; + +static void handle_tablet_pad_v2_set_feedback( struct wl_client *client, + struct wl_resource *resource, uint32_t button, + const char *description, uint32_t serial) { + struct wlr_tablet_pad_client_v2 *pad = tablet_pad_client_from_resource(resource); + if (!pad) { + return; + } + + struct wlr_tablet_v2_event_feedback evt = { + .serial = serial, + .index = button, + .description = description, + }; + + wl_signal_emit(&pad->pad->events.button_feedback, &evt); +} + +static struct zwp_tablet_pad_v2_interface tablet_pad_impl = { + .set_feedback = handle_tablet_pad_v2_set_feedback, + .destroy = handle_tablet_pad_v2_destroy, +}; + +static void destroy_tablet_pad_group_v2(struct wl_resource *resource) { + struct tablet_pad_auxiliary_user_data *aux = wl_resource_get_user_data(resource); + + if (!aux) { + return; + } + + aux->pad->groups[aux->index] = NULL; + free(aux); + wl_resource_set_user_data(resource, NULL); +} + +static void handle_tablet_pad_group_v2_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} + +static struct zwp_tablet_pad_group_v2_interface tablet_pad_group_impl = { + .destroy = handle_tablet_pad_group_v2_destroy, +}; + +static void add_tablet_pad_group(struct wlr_tablet_v2_tablet_pad *pad, + struct wlr_tablet_pad_client_v2 *client, + struct wlr_tablet_pad_group *group, size_t index) { + client->groups[index] = + wl_resource_create(client->client, &zwp_tablet_pad_group_v2_interface, 1, 0); + if (!client->groups[index]) { + wl_client_post_no_memory(client->client); + return; + } + struct tablet_pad_auxiliary_user_data *user_data = + calloc(1, sizeof(struct tablet_pad_auxiliary_user_data)); + if (!user_data) { + return; + } + user_data->pad = client; + user_data->index = index; + wl_resource_set_implementation(client->groups[index], &tablet_pad_group_impl, + user_data, destroy_tablet_pad_group_v2); + + zwp_tablet_pad_v2_send_group(client->resource, client->groups[index]); + zwp_tablet_pad_group_v2_send_modes(client->groups[index], group->mode_count); + + struct wl_array button_array; + wl_array_init(&button_array); + wl_array_add(&button_array, group->button_count * sizeof(int)); + memcpy(button_array.data, group->buttons, group->button_count * sizeof(int)); + zwp_tablet_pad_group_v2_send_buttons(client->groups[index], &button_array); + wl_array_release(&button_array); + + client->strip_count = group->strip_count; + for (size_t i = 0; i < group->strip_count; ++i) { + size_t strip = group->strips[i]; + struct tablet_pad_auxiliary_user_data *user_data = + calloc(1, sizeof(struct tablet_pad_auxiliary_user_data)); + if (!user_data) { + continue; + } + user_data->pad = client; + user_data->index = strip; + client->strips[strip] = + wl_resource_create(client->client, &zwp_tablet_pad_strip_v2_interface, 1, 0); + wl_resource_set_implementation(client->strips[strip], + &tablet_pad_strip_impl, user_data, destroy_tablet_pad_strip_v2); + zwp_tablet_pad_group_v2_send_strip(client->groups[index], client->strips[strip]); + } + + client->ring_count = group->ring_count; + for (size_t i = 0; i < group->ring_count; ++i) { + size_t ring = group->rings[i]; + struct tablet_pad_auxiliary_user_data *user_data = + calloc(1, sizeof(struct tablet_pad_auxiliary_user_data)); + if (!user_data) { + continue; + } + user_data->pad = client; + user_data->index = ring; + client->rings[ring] = + wl_resource_create(client->client, &zwp_tablet_pad_ring_v2_interface, 1, 0); + wl_resource_set_implementation(client->rings[ring], + &tablet_pad_ring_impl, user_data, destroy_tablet_pad_ring_v2); + zwp_tablet_pad_group_v2_send_ring(client->groups[index], client->rings[ring]); + } + + zwp_tablet_pad_group_v2_send_done(client->groups[index]); +} + +void add_tablet_pad_client(struct wlr_tablet_seat_client_v2 *seat, + struct wlr_tablet_v2_tablet_pad *pad) { + struct wlr_tablet_pad_client_v2 *client = + calloc(1, sizeof(struct wlr_tablet_pad_client_v2)); + if (!client) { + wl_client_post_no_memory(seat->wl_client); + return; + } + client->pad = pad; + + client->groups = calloc(sizeof(int), wl_list_length(&pad->wlr_pad->groups)); + if (!client->groups) { + wl_client_post_no_memory(seat->wl_client); + free(client); + return; + } + + client->rings = calloc(sizeof(struct wl_resource*), pad->wlr_pad->ring_count); + if (!client->rings) { + wl_client_post_no_memory(seat->wl_client); + free(client->groups); + free(client); + return; + } + + client->strips = calloc(sizeof(struct wl_resource*), pad->wlr_pad->strip_count); + if (!client->strips) { + wl_client_post_no_memory(seat->wl_client); + free(client->groups); + free(client->rings); + free(client); + return; + } + + client->resource = + wl_resource_create(seat->wl_client, &zwp_tablet_pad_v2_interface, 1, 0); + if (!client->resource) { + wl_client_post_no_memory(seat->wl_client); + free(client->groups); + free(client->rings); + free(client->strips); + free(client); + return; + } + wl_resource_set_implementation(client->resource, &tablet_pad_impl, + client, destroy_tablet_pad_v2); + zwp_tablet_seat_v2_send_pad_added(seat->resource, client->resource); + client->client = seat->wl_client; + + // Send the expected events + if (pad->wlr_pad->button_count) { + zwp_tablet_pad_v2_send_buttons(client->resource, pad->wlr_pad->button_count); + } + for (size_t i = 0; i < pad->wlr_pad->paths.length; ++i) { + zwp_tablet_pad_v2_send_path(client->resource, + pad->wlr_pad->paths.items[i]); + } + size_t i = 0; + struct wlr_tablet_pad_group *group; + wl_list_for_each(group, &pad->wlr_pad->groups, link) { + add_tablet_pad_group(pad, client, group, i++); + } + zwp_tablet_pad_v2_send_done(client->resource); + + wl_list_insert(&seat->pads, &client->seat_link); + wl_list_insert(&pad->clients, &client->pad_link); +} + +static void handle_wlr_tablet_pad_destroy(struct wl_listener *listener, void *data) { + struct wlr_tablet_v2_tablet_pad *pad = + wl_container_of(listener, pad, pad_destroy); + + struct wlr_tablet_pad_client_v2 *pos; + struct wlr_tablet_pad_client_v2 *tmp; + wl_list_for_each_safe(pos, tmp, &pad->clients, pad_link) { + // XXX: Add a timer/flag to destroy if client is slow? + zwp_tablet_pad_v2_send_removed(pos->resource); + + for (size_t i = 0; i < pos->group_count; ++i) { + destroy_tablet_pad_group_v2(pos->groups[i]); + } + + for (size_t i = 0; i < pos->strip_count; ++i) { + destroy_tablet_pad_strip_v2(pos->strips[i]); + } + + for (size_t i = 0; i < pos->ring_count; ++i) { + destroy_tablet_pad_ring_v2(pos->rings[i]); + } + } + + wl_list_remove(&pad->clients); + wl_list_remove(&pad->link); + wl_list_remove(&pad->pad_destroy.link); + wl_list_remove(&pad->events.button_feedback.listener_list); + wl_list_remove(&pad->events.strip_feedback.listener_list); + wl_list_remove(&pad->events.ring_feedback.listener_list); + free(pad); +} + +struct wlr_tablet_v2_tablet_pad *wlr_tablet_pad_create( + struct wlr_tablet_manager_v2 *manager, + struct wlr_seat *wlr_seat, + struct wlr_input_device *wlr_device) { + assert(wlr_device->type == WLR_INPUT_DEVICE_TABLET_PAD); + struct wlr_tablet_seat_v2 *seat = get_or_create_tablet_seat(manager, wlr_seat); + if (!seat) { + return NULL; + } + struct wlr_tablet_pad *wlr_pad = wlr_device->tablet_pad; + struct wlr_tablet_v2_tablet_pad *pad = calloc(1, sizeof(struct wlr_tablet_v2_tablet_pad)); + if (!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); + + pad->pad_destroy.notify = handle_wlr_tablet_pad_destroy; + wl_signal_add(&wlr_device->events.destroy, &pad->pad_destroy); + wl_list_insert(&seat->pads, &pad->link); + + // We need to create a tablet client for all clients on the seat + struct wlr_tablet_seat_client_v2 *pos; + wl_list_for_each(pos, &seat->clients, seat_link) { + // Tell the clients about the new tool + add_tablet_pad_client(pos, pad); + } + + wl_signal_init(&pad->events.button_feedback); + wl_signal_init(&pad->events.strip_feedback); + wl_signal_init(&pad->events.ring_feedback); + + return pad; +} + +struct wlr_tablet_pad_client_v2 *tablet_pad_client_from_resource(struct wl_resource *resource) { + assert(wl_resource_instance_of(resource, &zwp_tablet_pad_v2_interface, + &tablet_pad_impl)); + return wl_resource_get_user_data(resource); +} + +/* Actual protocol foo */ +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 = NULL; + struct wlr_tablet_pad_client_v2 *pad_client = NULL; + 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; +} + +bool wlr_surface_accepts_tablet_v2(struct wlr_tablet_v2_tablet *tablet, + struct wlr_surface *surface) { + struct wl_client *client = wl_resource_get_client(surface->resource); + + if (tablet->current_client && + tablet->current_client->client == client) { + return true; + } + + struct wlr_tablet_client_v2 *tablet_tmp; + wl_list_for_each(tablet_tmp, &tablet->clients, tablet_link) { + if (tablet_tmp->client == client) { + return true; + } + } + + return false; +} diff --git a/types/tablet_v2/wlr_tablet_v2_tablet.c b/types/tablet_v2/wlr_tablet_v2_tablet.c new file mode 100644 index 00000000..1bca6e34 --- /dev/null +++ b/types/tablet_v2/wlr_tablet_v2_tablet.c @@ -0,0 +1,128 @@ +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif + +#include "tablet-unstable-v2-protocol.h" +#include +#include +#include +#include +#include +#include +#include + +void destroy_tablet_v2(struct wl_resource *resource) { + struct wlr_tablet_client_v2 *tablet = tablet_client_from_resource(resource); + + if (!tablet) { + return; + } + + wl_list_remove(&tablet->seat_link); + wl_list_remove(&tablet->tablet_link); + free(tablet); + wl_resource_set_user_data(resource, NULL); +} + +static void handle_tablet_v2_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} + +static struct zwp_tablet_v2_interface tablet_impl = { + .destroy = handle_tablet_v2_destroy, +}; + +static void handle_wlr_tablet_destroy(struct wl_listener *listener, void *data) { + struct wlr_tablet_v2_tablet *tablet = + wl_container_of(listener, tablet, tool_destroy); + + struct wlr_tablet_client_v2 *pos; + struct wlr_tablet_client_v2 *tmp; + wl_list_for_each_safe(pos, tmp, &tablet->clients, tablet_link) { + // XXX: Add a timer/flag to destroy if client is slow? + zwp_tablet_v2_send_removed(pos->resource); + } + + wl_list_remove(&tablet->clients); + wl_list_remove(&tablet->link); + wl_list_remove(&tablet->tool_destroy.link); + free(tablet); +} + +struct wlr_tablet_v2_tablet *wlr_tablet_create( + struct wlr_tablet_manager_v2 *manager, + struct wlr_seat *wlr_seat, + struct wlr_input_device *wlr_device) { + assert(wlr_device->type == WLR_INPUT_DEVICE_TABLET_TOOL); + struct wlr_tablet_seat_v2 *seat = get_or_create_tablet_seat(manager, wlr_seat); + if (!seat) { + return NULL; + } + struct wlr_tablet_tool *tool = wlr_device->tablet_tool; + struct wlr_tablet_v2_tablet *tablet = calloc(1, sizeof(struct wlr_tablet_v2_tablet)); + if (!tablet) { + return NULL; + } + + tablet->wlr_tool = tool; + tablet->wlr_device = wlr_device; + wl_list_init(&tablet->clients); + + + tablet->tool_destroy.notify = handle_wlr_tablet_destroy; + wl_signal_add(&wlr_device->events.destroy, &tablet->tool_destroy); + wl_list_insert(&seat->tablets, &tablet->link); + + // We need to create a tablet client for all clients on the seat + struct wlr_tablet_seat_client_v2 *pos; + wl_list_for_each(pos, &seat->clients, seat_link) { + // Tell the clients about the new tool + add_tablet_client(pos, tablet); + } + + return tablet; +} + + +void add_tablet_client(struct wlr_tablet_seat_client_v2 *seat, + struct wlr_tablet_v2_tablet *tablet) { + struct wlr_tablet_client_v2 *client = + calloc(1, sizeof(struct wlr_tablet_client_v2)); + if (!client) { + return; + } + + client->resource = + wl_resource_create(seat->wl_client, &zwp_tablet_v2_interface, 1, 0); + if (!client->resource) { + free(client); + return; + } + wl_resource_set_implementation(client->resource, &tablet_impl, + client, destroy_tablet_v2); + zwp_tablet_seat_v2_send_tablet_added(seat->resource, client->resource); + + // Send the expected events + if (tablet->wlr_tool->name) { + zwp_tablet_v2_send_name(client->resource, tablet->wlr_tool->name); + } + zwp_tablet_v2_send_id(client->resource, + tablet->wlr_device->vendor, tablet->wlr_device->product); + for (size_t i = 0; i < tablet->wlr_tool->paths.length; ++i) { + zwp_tablet_v2_send_path(client->resource, + tablet->wlr_tool->paths.items[i]); + } + zwp_tablet_v2_send_done(client->resource); + + client->client = seat->wl_client; + wl_list_insert(&seat->tablets, &client->seat_link); + wl_list_insert(&tablet->clients, &client->tablet_link); +} + + +struct wlr_tablet_client_v2 *tablet_client_from_resource(struct wl_resource *resource) { + assert(wl_resource_instance_of(resource, &zwp_tablet_v2_interface, + &tablet_impl)); + return wl_resource_get_user_data(resource); +} diff --git a/types/tablet_v2/wlr_tablet_v2_tool.c b/types/tablet_v2/wlr_tablet_v2_tool.c new file mode 100644 index 00000000..1f39f12a --- /dev/null +++ b/types/tablet_v2/wlr_tablet_v2_tool.c @@ -0,0 +1,489 @@ +#ifndef _POSIX_C_SOURCE +#define _POSIX_C_SOURCE 200809L +#endif + +#include "tablet-unstable-v2-protocol.h" +#include +#include +#include +#include +#include +#include +#include + +static const struct wlr_surface_role pointer_cursor_surface_role = { + .name = "wl_pointer-cursor", +}; + +static void handle_tablet_tool_v2_set_cursor(struct wl_client *client, + struct wl_resource *resource, uint32_t serial, + struct wl_resource *surface_resource, + int32_t hotspot_x, int32_t hotspot_y) { + struct wlr_tablet_tool_client_v2 *tool = tablet_tool_client_from_resource(resource); + if (!tool) { + return; + } + + struct wlr_surface *surface = NULL; + if (surface_resource != NULL) { + surface = wlr_surface_from_resource(surface_resource); + if (!wlr_surface_set_role(surface, &pointer_cursor_surface_role, NULL, + surface_resource, WL_POINTER_ERROR_ROLE)) { + return; + } + } + + struct wlr_tablet_v2_event_cursor evt = { + .surface = surface, + .serial = serial, + .hotspot_x = hotspot_x, + .hotspot_y = hotspot_y, + .seat_client = tool->seat->seat, + }; + + wl_signal_emit(&tool->tool->events.set_cursor, &evt); +} + +static void handle_tablet_tool_v2_destroy(struct wl_client *client, + struct wl_resource *resource) { + wl_resource_destroy(resource); +} +static struct zwp_tablet_tool_v2_interface tablet_tool_impl = { + .set_cursor = handle_tablet_tool_v2_set_cursor, + .destroy = handle_tablet_tool_v2_destroy, +}; + +static enum zwp_tablet_tool_v2_type tablet_type_from_wlr_type( + enum wlr_tablet_tool_type wlr_type) { + switch(wlr_type) { + case WLR_TABLET_TOOL_TYPE_PEN: + return ZWP_TABLET_TOOL_V2_TYPE_PEN; + case WLR_TABLET_TOOL_TYPE_ERASER: + return ZWP_TABLET_TOOL_V2_TYPE_ERASER; + case WLR_TABLET_TOOL_TYPE_BRUSH: + return ZWP_TABLET_TOOL_V2_TYPE_BRUSH; + case WLR_TABLET_TOOL_TYPE_PENCIL: + return ZWP_TABLET_TOOL_V2_TYPE_PENCIL; + case WLR_TABLET_TOOL_TYPE_AIRBRUSH: + return ZWP_TABLET_TOOL_V2_TYPE_AIRBRUSH; + case WLR_TABLET_TOOL_TYPE_MOUSE: + return ZWP_TABLET_TOOL_V2_TYPE_MOUSE; + case WLR_TABLET_TOOL_TYPE_LENS: + return ZWP_TABLET_TOOL_V2_TYPE_LENS; + } + + assert(false && "Unreachable"); +} + +void destroy_tablet_tool_v2(struct wl_resource *resource) { + struct wlr_tablet_tool_client_v2 *client = + tablet_tool_client_from_resource(resource); + + if (!client) { + return; + } + + if (client->frame_source) { + wl_event_source_remove(client->frame_source); + } + + if (client->tool && client->tool->current_client == client) { + client->tool->current_client = NULL; + } + + wl_list_remove(&client->seat_link); + wl_list_remove(&client->tool_link); + free(client); + + wl_resource_set_user_data(resource, NULL); +} + +void add_tablet_tool_client(struct wlr_tablet_seat_client_v2 *seat, + struct wlr_tablet_v2_tablet_tool *tool) { + struct wlr_tablet_tool_client_v2 *client = + calloc(1, sizeof(struct wlr_tablet_tool_client_v2)); + if (!client) { + return; + } + client->tool = tool; + client->seat = seat; + + client->resource = + wl_resource_create(seat->wl_client, &zwp_tablet_tool_v2_interface, 1, 0); + if (!client->resource) { + free(client); + return; + } + wl_resource_set_implementation(client->resource, &tablet_tool_impl, + client, destroy_tablet_tool_v2); + zwp_tablet_seat_v2_send_tool_added(seat->resource, client->resource); + + // Send the expected events + if (tool->wlr_tool->hardware_serial) { + zwp_tablet_tool_v2_send_hardware_serial( + client->resource, + tool->wlr_tool->hardware_serial >> 32, + tool->wlr_tool->hardware_serial & 0xFFFFFFFF); + } + if (tool->wlr_tool->hardware_wacom) { + zwp_tablet_tool_v2_send_hardware_id_wacom( + client->resource, + tool->wlr_tool->hardware_wacom >> 32, + tool->wlr_tool->hardware_wacom & 0xFFFFFFFF); + } + zwp_tablet_tool_v2_send_type(client->resource, + tablet_type_from_wlr_type(tool->wlr_tool->type)); + + if (tool->wlr_tool->tilt) { + zwp_tablet_tool_v2_send_capability(client->resource, + ZWP_TABLET_TOOL_V2_CAPABILITY_TILT); + } + + if (tool->wlr_tool->pressure) { + zwp_tablet_tool_v2_send_capability(client->resource, + ZWP_TABLET_TOOL_V2_CAPABILITY_PRESSURE); + } + + if (tool->wlr_tool->distance) { + zwp_tablet_tool_v2_send_capability(client->resource, + ZWP_TABLET_TOOL_V2_CAPABILITY_DISTANCE); + } + + if (tool->wlr_tool->rotation) { + zwp_tablet_tool_v2_send_capability(client->resource, + ZWP_TABLET_TOOL_V2_CAPABILITY_ROTATION); + } + + if (tool->wlr_tool->slider) { + zwp_tablet_tool_v2_send_capability(client->resource, + ZWP_TABLET_TOOL_V2_CAPABILITY_SLIDER); + } + + if (tool->wlr_tool->wheel) { + zwp_tablet_tool_v2_send_capability(client->resource, + ZWP_TABLET_TOOL_V2_CAPABILITY_WHEEL); + } + + zwp_tablet_tool_v2_send_done(client->resource); + + client->client = seat->wl_client; + wl_list_insert(&seat->tools, &client->seat_link); + wl_list_insert(&tool->clients, &client->tool_link); +} + +static void handle_wlr_tablet_tool_destroy(struct wl_listener *listener, void *data) { + struct wlr_tablet_v2_tablet_tool *tool = + wl_container_of(listener, tool, tool_destroy); + + struct wlr_tablet_tool_client_v2 *pos; + struct wlr_tablet_tool_client_v2 *tmp; + wl_list_for_each_safe(pos, tmp, &tool->clients, tool_link) { + // XXX: Add a timer/flag to destroy if client is slow? + zwp_tablet_tool_v2_send_removed(pos->resource); + pos->tool = NULL; + } + + wl_list_remove(&tool->clients); + wl_list_remove(&tool->link); + wl_list_remove(&tool->tool_destroy.link); + wl_list_remove(&tool->events.set_cursor.listener_list); + free(tool); +} + +struct wlr_tablet_v2_tablet_tool *wlr_tablet_tool_create( + struct wlr_tablet_manager_v2 *manager, + struct wlr_seat *wlr_seat, + struct wlr_tablet_tool_tool *wlr_tool) { + struct wlr_tablet_seat_v2 *seat = get_or_create_tablet_seat(manager, wlr_seat); + if (!seat) { + return NULL; + } + struct wlr_tablet_v2_tablet_tool *tool = + calloc(1, sizeof(struct wlr_tablet_v2_tablet_tool)); + if (!tool) { + return NULL; + } + + tool->wlr_tool = wlr_tool; + wl_list_init(&tool->clients); + + + tool->tool_destroy.notify = handle_wlr_tablet_tool_destroy; + wl_signal_add(&wlr_tool->events.destroy, &tool->tool_destroy); + wl_list_insert(&seat->tools, &tool->link); + + // We need to create a tablet client for all clients on the seat + struct wlr_tablet_seat_client_v2 *pos; + wl_list_for_each(pos, &seat->clients, seat_link) { + // Tell the clients about the new tool + add_tablet_tool_client(pos, tool); + } + + wl_signal_init(&tool->events.set_cursor); + + return tool; +} + +struct wlr_tablet_tool_client_v2 *tablet_tool_client_from_resource(struct wl_resource *resource) { + assert(wl_resource_instance_of(resource, &zwp_tablet_tool_v2_interface, + &tablet_tool_impl)); + return wl_resource_get_user_data(resource); +} + + +/* Actual protocol foo */ +// https://www.geeksforgeeks.org/move-zeroes-end-array/ +static size_t push_zeroes_to_end(uint32_t arr[], size_t n) { + size_t count = 0; + + for (size_t i = 0; i < n; i++) { + if (arr[i] != 0) { + arr[count++] = arr[i]; + } + } + + size_t ret = count; + + while (count < n) { + arr[count++] = 0; + } + + return ret; +} + +static void tablet_tool_button_update(struct wlr_tablet_v2_tablet_tool *tool, + uint32_t button, enum zwp_tablet_pad_v2_button_state state) { + bool found = false; + size_t i = 0; + for (; i < tool->num_buttons; ++i) { + if (tool->pressed_buttons[i] == button) { + found = true; + break; + } + } + + if (button == ZWP_TABLET_PAD_V2_BUTTON_STATE_PRESSED && !found && + tool->num_buttons < WLR_TABLEt_V2_TOOL_BUTTONS_CAP) { + tool->pressed_buttons[tool->num_buttons++] = button; + } + if (button == ZWP_TABLET_PAD_V2_BUTTON_STATE_RELEASED && found) { + tool->pressed_buttons[i] = 0; + tool->num_buttons = push_zeroes_to_end(tool->pressed_buttons, WLR_TABLEt_V2_TOOL_BUTTONS_CAP); + } + + assert(tool->num_buttons <= WLR_TABLEt_V2_TOOL_BUTTONS_CAP); +} + +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) { + struct wl_display *display = wl_client_get_display(tool->client); + struct wl_event_loop *loop = wl_display_get_event_loop(display); + if (!tool->frame_source) { + tool->frame_source = + wl_event_loop_add_idle(loop, 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); + + if (tool->focused_surface == surface) { + return 0; + } + + 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 = NULL; + struct wlr_tablet_tool_client_v2 *tool_client = NULL; + 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); + + tool->focused_surface = surface; + 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); + } + tool->current_client = NULL; + } +} + +void wlr_send_tablet_v2_tablet_tool_pressure( + struct wlr_tablet_v2_tablet_tool *tool, uint32_t pressure) { + if (tool->current_client) { + zwp_tablet_tool_v2_send_pressure(tool->current_client->resource, + pressure); + + queue_tool_frame(tool->current_client); + } +} + +void wlr_send_tablet_v2_tablet_tool_distance( + struct wlr_tablet_v2_tablet_tool *tool, uint32_t distance) { + if (tool->current_client) { + zwp_tablet_tool_v2_send_distance(tool->current_client->resource, + distance); + + queue_tool_frame(tool->current_client); + } +} + +void wlr_send_tablet_v2_tablet_tool_tilt( + struct wlr_tablet_v2_tablet_tool *tool, double x, double y) { + if (!tool->current_client) { + return; + } + + zwp_tablet_tool_v2_send_tilt(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_rotation( + struct wlr_tablet_v2_tablet_tool *tool, double degrees) { + if (!tool->current_client) { + return; + } + + zwp_tablet_tool_v2_send_rotation(tool->current_client->resource, + wl_fixed_from_double(degrees)); + + queue_tool_frame(tool->current_client); +} + +void wlr_send_tablet_v2_tablet_tool_slider( + struct wlr_tablet_v2_tablet_tool *tool, int32_t position) { + if (!tool->current_client) { + return; + } + + zwp_tablet_tool_v2_send_slider(tool->current_client->resource, + position); + + queue_tool_frame(tool->current_client); +} + +uint32_t wlr_send_tablet_v2_tablet_tool_button( + struct wlr_tablet_v2_tablet_tool *tool, uint32_t button, + enum zwp_tablet_pad_v2_button_state state) { + tablet_tool_button_update(tool, button, state); + + if (tool->current_client) { + uint32_t serial = ++tool->button_serial; + + zwp_tablet_tool_v2_send_button(tool->current_client->resource, + serial, button, state); + queue_tool_frame(tool->current_client); + + return serial; + } + + return 0; +} + +void wlr_send_tablet_v2_tablet_tool_wheel( + struct wlr_tablet_v2_tablet_tool *tool, double delta, int32_t clicks) { + if (tool->current_client) { + zwp_tablet_tool_v2_send_wheel(tool->current_client->resource, + clicks, delta); + + queue_tool_frame(tool->current_client); + } +} + +uint32_t wlr_send_tablet_v2_tablet_tool_down(struct wlr_tablet_v2_tablet_tool *tool) { + if (tool->is_down) { + return 0; + } + + tool->is_down = true; + if (tool->current_client) { + uint32_t serial = ++tool->down_serial; + + zwp_tablet_tool_v2_send_down(tool->current_client->resource, + serial); + queue_tool_frame(tool->current_client); + + return serial; + } + + return 0; +} + +void wlr_send_tablet_v2_tablet_tool_up(struct wlr_tablet_v2_tablet_tool *tool) { + if (!tool->is_down) { + return; + } + tool->is_down = false; + + if (tool->current_client) { + zwp_tablet_tool_v2_send_up(tool->current_client->resource); + queue_tool_frame(tool->current_client); + } +} +