swayfx/sway/input/input-manager.c
Brian Ashworth 1a5797803a config: improvements to the reload validation
For the validation pass of reloading, there is no need to touch swaybg,
swaynag, inputs, outputs, or seats. This drastically improves the speed
of a reload by skipping over the expensive I/O configuration and
handling of wayland clients. As long as the syntax is valid, the
CMD_FAILURE's can be relayed during the actual reload.
2019-11-27 02:04:13 +01:00

514 lines
15 KiB
C

#define _POSIX_C_SOURCE 200809L
#include <ctype.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <wlr/backend/libinput.h>
#include <wlr/types/wlr_input_inhibitor.h>
#include <wlr/types/wlr_virtual_keyboard_v1.h>
#include "sway/config.h"
#include "sway/input/input-manager.h"
#include "sway/input/libinput.h"
#include "sway/input/seat.h"
#include "sway/ipc-server.h"
#include "sway/server.h"
#include "stringop.h"
#include "list.h"
#include "log.h"
#define DEFAULT_SEAT "seat0"
struct input_config *current_input_config = NULL;
struct seat_config *current_seat_config = NULL;
struct sway_seat *input_manager_current_seat(void) {
struct sway_seat *seat = config->handler_context.seat;
if (!seat) {
seat = input_manager_get_default_seat();
}
return seat;
}
struct sway_seat *input_manager_get_default_seat(void) {
return input_manager_get_seat(DEFAULT_SEAT, true);
}
struct sway_seat *input_manager_get_seat(const char *seat_name, bool create) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
if (strcmp(seat->wlr_seat->name, seat_name) == 0) {
return seat;
}
}
return create ? seat_create(seat_name) : NULL;
}
char *input_device_get_identifier(struct wlr_input_device *device) {
int vendor = device->vendor;
int product = device->product;
char *name = strdup(device->name ? device->name : "");
strip_whitespace(name);
char *p = name;
for (; *p; ++p) {
if (*p == ' ') {
*p = '_';
}
}
const char *fmt = "%d:%d:%s";
int len = snprintf(NULL, 0, fmt, vendor, product, name) + 1;
char *identifier = malloc(len);
if (!identifier) {
sway_log(SWAY_ERROR, "Unable to allocate unique input device name");
return NULL;
}
snprintf(identifier, len, fmt, vendor, product, name);
free(name);
return identifier;
}
static bool device_is_touchpad(struct sway_input_device *device) {
if (device->wlr_device->type != WLR_INPUT_DEVICE_POINTER ||
!wlr_input_device_is_libinput(device->wlr_device)) {
return false;
}
struct libinput_device *libinput_device =
wlr_libinput_get_device_handle(device->wlr_device);
return libinput_device_config_tap_get_finger_count(libinput_device) > 0;
}
const char *input_device_get_type(struct sway_input_device *device) {
switch (device->wlr_device->type) {
case WLR_INPUT_DEVICE_POINTER:
if (device_is_touchpad(device)) {
return "touchpad";
} else {
return "pointer";
}
case WLR_INPUT_DEVICE_KEYBOARD:
return "keyboard";
case WLR_INPUT_DEVICE_TOUCH:
return "touch";
case WLR_INPUT_DEVICE_TABLET_TOOL:
return "tablet_tool";
case WLR_INPUT_DEVICE_TABLET_PAD:
return "tablet_pad";
case WLR_INPUT_DEVICE_SWITCH:
return "switch";
}
return "unknown";
}
static void apply_input_type_config(struct sway_input_device *input_device) {
const char *device_type = input_device_get_type(input_device);
struct input_config *type_config = NULL;
for (int i = 0; i < config->input_type_configs->length; i++) {
struct input_config *ic = config->input_type_configs->items[i];
if (strcmp(ic->identifier + 5, device_type) == 0) {
type_config = ic;
break;
}
}
if (type_config == NULL) {
return;
}
for (int i = 0; i < config->input_configs->length; i++) {
struct input_config *ic = config->input_configs->items[i];
if (strcmp(input_device->identifier, ic->identifier) == 0) {
struct input_config *current = new_input_config(ic->identifier);
merge_input_config(current, type_config);
merge_input_config(current, ic);
current->input_type = device_type;
config->input_configs->items[i] = current;
free_input_config(ic);
ic = NULL;
break;
}
}
}
static struct sway_input_device *input_sway_device_from_wlr(
struct wlr_input_device *device) {
struct sway_input_device *input_device = NULL;
wl_list_for_each(input_device, &server.input->devices, link) {
if (input_device->wlr_device == device) {
return input_device;
}
}
return NULL;
}
static bool input_has_seat_fallback_configuration(void) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
struct seat_config *seat_config = seat_get_config(seat);
if (seat_config && strcmp(seat_config->name, "*") != 0
&& seat_config->fallback != -1) {
return true;
}
}
return false;
}
void input_manager_verify_fallback_seat(void) {
struct sway_seat *seat = NULL;
if (!input_has_seat_fallback_configuration()) {
sway_log(SWAY_DEBUG, "no fallback seat config - creating default");
seat = input_manager_get_default_seat();
struct seat_config *sc = new_seat_config(seat->wlr_seat->name);
sc->fallback = true;
sc = store_seat_config(sc);
input_manager_apply_seat_config(sc);
}
}
static void handle_device_destroy(struct wl_listener *listener, void *data) {
struct wlr_input_device *device = data;
struct sway_input_device *input_device = input_sway_device_from_wlr(device);
if (!sway_assert(input_device, "could not find sway device")) {
return;
}
sway_log(SWAY_DEBUG, "removing device: '%s'",
input_device->identifier);
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
seat_remove_device(seat, input_device);
}
ipc_event_input("removed", input_device);
wl_list_remove(&input_device->link);
wl_list_remove(&input_device->device_destroy.link);
free(input_device->identifier);
free(input_device);
}
static void handle_new_input(struct wl_listener *listener, void *data) {
struct sway_input_manager *input =
wl_container_of(listener, input, new_input);
struct wlr_input_device *device = data;
struct sway_input_device *input_device =
calloc(1, sizeof(struct sway_input_device));
if (!sway_assert(input_device, "could not allocate input device")) {
return;
}
device->data = input_device;
input_device->wlr_device = device;
input_device->identifier = input_device_get_identifier(device);
wl_list_insert(&input->devices, &input_device->link);
sway_log(SWAY_DEBUG, "adding device: '%s'",
input_device->identifier);
apply_input_type_config(input_device);
sway_input_configure_libinput_device(input_device);
wl_signal_add(&device->events.destroy, &input_device->device_destroy);
input_device->device_destroy.notify = handle_device_destroy;
input_manager_verify_fallback_seat();
bool added = false;
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
struct seat_config *seat_config = seat_get_config(seat);
bool has_attachment = seat_config &&
(seat_config_get_attachment(seat_config, input_device->identifier) ||
seat_config_get_attachment(seat_config, "*"));
if (has_attachment) {
seat_add_device(seat, input_device);
added = true;
}
}
if (!added) {
wl_list_for_each(seat, &input->seats, link) {
struct seat_config *seat_config = seat_get_config(seat);
if (seat_config && seat_config->fallback == 1) {
seat_add_device(seat, input_device);
added = true;
}
}
}
if (!added) {
sway_log(SWAY_DEBUG,
"device '%s' is not configured on any seats",
input_device->identifier);
}
ipc_event_input("added", input_device);
}
static void handle_inhibit_activate(struct wl_listener *listener, void *data) {
struct sway_input_manager *input_manager = wl_container_of(
listener, input_manager, inhibit_activate);
struct sway_seat *seat;
wl_list_for_each(seat, &input_manager->seats, link) {
seat_set_exclusive_client(seat, input_manager->inhibit->active_client);
}
}
static void handle_inhibit_deactivate(struct wl_listener *listener, void *data) {
struct sway_input_manager *input_manager = wl_container_of(
listener, input_manager, inhibit_deactivate);
struct sway_seat *seat;
wl_list_for_each(seat, &input_manager->seats, link) {
seat_set_exclusive_client(seat, NULL);
struct sway_node *previous = seat_get_focus(seat);
if (previous) {
// Hack to get seat to re-focus the return value of get_focus
seat_set_focus(seat, NULL);
seat_set_focus(seat, previous);
}
}
}
void handle_virtual_keyboard(struct wl_listener *listener, void *data) {
struct sway_input_manager *input_manager =
wl_container_of(listener, input_manager, virtual_keyboard_new);
struct wlr_virtual_keyboard_v1 *keyboard = data;
struct wlr_input_device *device = &keyboard->input_device;
struct sway_seat *seat = input_manager_get_default_seat();
// TODO: The user might want this on a different seat
struct sway_input_device *input_device =
calloc(1, sizeof(struct sway_input_device));
if (!sway_assert(input_device, "could not allocate input device")) {
return;
}
device->data = input_device;
input_device->wlr_device = device;
input_device->identifier = input_device_get_identifier(device);
wl_list_insert(&input_manager->devices, &input_device->link);
sway_log(SWAY_DEBUG, "adding virtual keyboard: '%s'",
input_device->identifier);
wl_signal_add(&device->events.destroy, &input_device->device_destroy);
input_device->device_destroy.notify = handle_device_destroy;
seat_add_device(seat, input_device);
}
struct sway_input_manager *input_manager_create(struct sway_server *server) {
struct sway_input_manager *input =
calloc(1, sizeof(struct sway_input_manager));
if (!input) {
return NULL;
}
wl_list_init(&input->devices);
wl_list_init(&input->seats);
input->new_input.notify = handle_new_input;
wl_signal_add(&server->backend->events.new_input, &input->new_input);
input->virtual_keyboard = wlr_virtual_keyboard_manager_v1_create(
server->wl_display);
wl_signal_add(&input->virtual_keyboard->events.new_virtual_keyboard,
&input->virtual_keyboard_new);
input->virtual_keyboard_new.notify = handle_virtual_keyboard;
input->inhibit = wlr_input_inhibit_manager_create(server->wl_display);
input->inhibit_activate.notify = handle_inhibit_activate;
wl_signal_add(&input->inhibit->events.activate,
&input->inhibit_activate);
input->inhibit_deactivate.notify = handle_inhibit_deactivate;
wl_signal_add(&input->inhibit->events.deactivate,
&input->inhibit_deactivate);
return input;
}
bool input_manager_has_focus(struct sway_node *node) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
if (seat_get_focus(seat) == node) {
return true;
}
}
return false;
}
void input_manager_set_focus(struct sway_node *node) {
struct sway_seat *seat;
wl_list_for_each(seat, &server.input->seats, link) {
seat_set_focus(seat, node);
seat_consider_warp_to_focus(seat);
}
}
/**
* Re-translate keysyms if a change in the input config could affect them.
*/
static void retranslate_keysyms(struct input_config *input_config) {
for (int i = 0; i < config->input_configs->length; ++i) {
struct input_config *ic = config->input_configs->items[i];
if (ic->xkb_layout || ic->xkb_file) {
// this is the first config with xkb_layout or xkb_file
if (ic->identifier == input_config->identifier) {
translate_keysyms(ic);
}
return;
}
}
}
void input_manager_apply_input_config(struct input_config *input_config) {
struct sway_input_device *input_device = NULL;
bool wildcard = strcmp(input_config->identifier, "*") == 0;
bool type_wildcard = strncmp(input_config->identifier, "type:", 5) == 0;
wl_list_for_each(input_device, &server.input->devices, link) {
bool type_matches = type_wildcard &&
strcmp(input_device_get_type(input_device), input_config->identifier + 5) == 0;
if (strcmp(input_device->identifier, input_config->identifier) == 0
|| wildcard
|| type_matches) {
sway_input_configure_libinput_device(input_device);
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
seat_configure_device(seat, input_device);
}
}
}
retranslate_keysyms(input_config);
}
void input_manager_reset_input(struct sway_input_device *input_device) {
sway_input_reset_libinput_device(input_device);
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
seat_reset_device(seat, input_device);
}
}
void input_manager_reset_all_inputs() {
struct sway_input_device *input_device = NULL;
wl_list_for_each(input_device, &server.input->devices, link) {
input_manager_reset_input(input_device);
}
}
void input_manager_apply_seat_config(struct seat_config *seat_config) {
sway_log(SWAY_DEBUG, "applying seat config for seat %s", seat_config->name);
if (strcmp(seat_config->name, "*") == 0) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
// Only apply the wildcard config directly if there is no seat
// specific config
struct seat_config *sc = seat_get_config(seat);
if (!sc) {
sc = seat_config;
}
seat_apply_config(seat, sc);
}
} else {
struct sway_seat *seat =
input_manager_get_seat(seat_config->name, true);
if (!seat) {
return;
}
seat_apply_config(seat, seat_config);
}
// for every device, try to add it to a seat and if no seat has it
// attached, add it to the fallback seats.
struct sway_input_device *input_device = NULL;
wl_list_for_each(input_device, &server.input->devices, link) {
list_t *seat_list = create_list();
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
struct seat_config *seat_config = seat_get_config(seat);
if (!seat_config) {
continue;
}
if (seat_config_get_attachment(seat_config, "*") ||
seat_config_get_attachment(seat_config,
input_device->identifier)) {
list_add(seat_list, seat);
}
}
if (seat_list->length) {
wl_list_for_each(seat, &server.input->seats, link) {
bool attached = false;
for (int i = 0; i < seat_list->length; ++i) {
if (seat == seat_list->items[i]) {
attached = true;
break;
}
}
if (attached) {
seat_add_device(seat, input_device);
} else {
seat_remove_device(seat, input_device);
}
}
} else {
wl_list_for_each(seat, &server.input->seats, link) {
struct seat_config *seat_config = seat_get_config(seat);
if (seat_config && seat_config->fallback == 1) {
seat_add_device(seat, input_device);
} else {
seat_remove_device(seat, input_device);
}
}
}
list_free(seat_list);
}
}
void input_manager_configure_xcursor(void) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &server.input->seats, link) {
seat_configure_xcursor(seat);
}
}
struct input_config *input_device_get_config(struct sway_input_device *device) {
struct input_config *wildcard_config = NULL;
struct input_config *input_config = NULL;
for (int i = 0; i < config->input_configs->length; ++i) {
input_config = config->input_configs->items[i];
if (strcmp(input_config->identifier, device->identifier) == 0) {
return input_config;
} else if (strcmp(input_config->identifier, "*") == 0) {
wildcard_config = input_config;
}
}
const char *device_type = input_device_get_type(device);
for (int i = 0; i < config->input_type_configs->length; ++i) {
input_config = config->input_type_configs->items[i];
if (strcmp(input_config->identifier + 5, device_type) == 0) {
return input_config;
}
}
return wildcard_config;
}