swayfx/sway/input/input-manager.c
2017-12-18 10:44:51 -05:00

305 lines
7.7 KiB
C

#define _XOPEN_SOURCE 700
#include <ctype.h>
#include <float.h>
#include <limits.h>
#include <stdio.h>
#include <string.h>
#include <libinput.h>
#include <math.h>
#include "sway/config.h"
#include "sway/input/input-manager.h"
#include "sway/input/seat.h"
#include "sway/server.h"
#include "stringop.h"
#include "list.h"
#include "log.h"
static const char *default_seat = "seat0";
// TODO make me not global
struct sway_input_manager *input_manager;
struct input_config *current_input_config = NULL;
struct seat_config *current_seat_config = NULL;
static struct sway_seat *input_manager_get_seat(
struct sway_input_manager *input, const char *seat_name) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
if (strcmp(seat->wlr_seat->name, seat_name) == 0) {
return seat;
}
}
return sway_seat_create(input, seat_name);
}
static inline int strlen_num(int num) {
if (num == 0) {
return 2;
}
return (int)((ceil(log10(abs(num)))+2));
}
static char *get_device_identifier(struct wlr_input_device *device) {
int vendor = device->vendor;
int product = device->product;
char *name = strdup(device->name);
name = strip_whitespace(name);
char *p = name;
for (; *p; ++p) {
if (*p == ' ') {
*p = '_';
}
}
int len =
(strlen(name) +
strlen_num(device->vendor) +
strlen_num(device->product) +
3) * sizeof(char);
char *identifier = malloc(len);
if (!identifier) {
sway_log(L_ERROR, "Unable to allocate unique input device name");
return NULL;
}
const char *fmt = "%d:%d:%s";
snprintf(identifier, len, fmt, vendor, product, name);
free(name);
return identifier;
}
static struct sway_input_device *input_sway_device_from_wlr(
struct sway_input_manager *input, struct wlr_input_device *device) {
struct sway_input_device *input_device = NULL;
wl_list_for_each(input_device, &input->devices, link) {
if (input_device->wlr_device == device) {
return input_device;
}
}
return NULL;
}
static bool input_has_seat_configuration(struct sway_input_manager *input) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
if (seat->config) {
return true;
}
}
return false;
}
static void input_add_notify(struct wl_listener *listener, void *data) {
struct sway_input_manager *input =
wl_container_of(listener, input, input_add);
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;
}
input_device->wlr_device = device;
input_device->identifier = get_device_identifier(device);
wl_list_insert(&input->devices, &input_device->link);
sway_log(L_DEBUG, "adding device: '%s'",
input_device->identifier);
// find config
for (int i = 0; i < config->input_configs->length; ++i) {
struct input_config *input_config = config->input_configs->items[i];
if (strcmp(input_config->identifier, input_device->identifier) == 0) {
input_device->config = input_config;
break;
}
}
struct sway_seat *seat = NULL;
if (!input_has_seat_configuration(input)) {
sway_log(L_DEBUG, "no seat configuration, using default seat");
seat = input_manager_get_seat(input, default_seat);
sway_seat_add_device(seat, input_device);
return;
}
bool added = false;
wl_list_for_each(seat, &input->seats, link) {
if (seat->config &&
(seat_config_get_attachment(seat->config,
input_device->identifier) ||
seat_config_get_attachment(seat->config, "*"))) {
sway_seat_add_device(seat, input_device);
added = true;
}
}
if (!added) {
wl_list_for_each(seat, &input->seats, link) {
if (seat->config && seat->config->fallback == 1) {
sway_seat_add_device(seat, input_device);
added = true;
}
}
}
if (!added) {
sway_log(L_DEBUG,
"device '%s' is not configured on any seats",
input_device->identifier);
}
}
static void input_remove_notify(struct wl_listener *listener, void *data) {
struct sway_input_manager *input =
wl_container_of(listener, input, input_remove);
struct wlr_input_device *device = data;
struct sway_input_device *input_device =
input_sway_device_from_wlr(input, device);
if (!sway_assert(input_device, "could not find sway device")) {
return;
}
sway_log(L_DEBUG, "removing device: '%s'",
input_device->identifier);
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
sway_seat_remove_device(seat, input_device);
}
wl_list_remove(&input_device->link);
free(input_device->identifier);
free(input_device);
}
struct sway_input_manager *sway_input_manager_create(
struct sway_server *server) {
struct sway_input_manager *input =
calloc(1, sizeof(struct sway_input_manager));
if (!input) {
return NULL;
}
input->server = server;
wl_list_init(&input->devices);
wl_list_init(&input->seats);
// create the default seat
input_manager_get_seat(input, default_seat);
input->input_add.notify = input_add_notify;
wl_signal_add(&server->backend->events.input_add, &input->input_add);
input->input_remove.notify = input_remove_notify;
wl_signal_add(&server->backend->events.input_remove, &input->input_remove);
return input;
}
bool sway_input_manager_has_focus(struct sway_input_manager *input,
swayc_t *container) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
if (seat->focus == container) {
return true;
}
}
return false;
}
void sway_input_manager_set_focus(struct sway_input_manager *input,
swayc_t *container) {
struct sway_seat *seat ;
wl_list_for_each(seat, &input->seats, link) {
sway_seat_set_focus(seat, container);
}
}
void sway_input_manager_apply_input_config(struct sway_input_manager *input,
struct input_config *input_config) {
struct sway_input_device *input_device = NULL;
wl_list_for_each(input_device, &input->devices, link) {
if (strcmp(input_device->identifier, input_config->identifier) == 0) {
input_device->config = input_config;
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
sway_seat_configure_device(seat, input_device);
}
}
}
}
void sway_input_manager_apply_seat_config(struct sway_input_manager *input,
struct seat_config *seat_config) {
sway_log(L_DEBUG, "applying new seat config for seat %s",
seat_config->name);
struct sway_seat *seat = input_manager_get_seat(input, seat_config->name);
if (!seat) {
return;
}
sway_seat_set_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, &input->devices, link) {
list_t *seat_list = create_list();
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
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, &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) {
sway_seat_add_device(seat, input_device);
} else {
sway_seat_remove_device(seat, input_device);
}
}
} else {
wl_list_for_each(seat, &input->seats, link) {
if (seat->config && seat->config->fallback == 1) {
sway_seat_add_device(seat, input_device);
} else {
sway_seat_remove_device(seat, input_device);
}
}
}
list_free(seat_list);
}
}
void sway_input_manager_configure_xcursor(struct sway_input_manager *input) {
struct sway_seat *seat = NULL;
wl_list_for_each(seat, &input->seats, link) {
sway_seat_configure_xcursor(seat);
}
}