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/*
* vim:ts=4:sw=4:expandtab
*
* i3bar - an xcb-based status- and ws-bar for i3
* © 2010 Axel Wagner and contributors (see also: LICENSE)
*
*/
#include "common.h"
#include <ev.h>
#include <getopt.h>
#include <glob.h>
#include <i3/ipc.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
struct ev_loop *main_loop;
/*
* Having verboselog(), errorlog() and debuglog() is necessary when using libi3.
*
*/
void verboselog(char *fmt, ...) {
va_list args;
va_start(args, fmt);
vfprintf(stdout, fmt, args);
va_end(args);
}
void errorlog(char *fmt, ...) {
va_list args;
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
}
void debuglog(char *fmt, ...) {
}
/*
* Glob path, i.e. expand ~
*
*/
static char *expand_path(char *path) {
static glob_t globbuf;
if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0) {
ELOG("glob() failed\n");
exit(EXIT_FAILURE);
}
char *result = sstrdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
globfree(&globbuf);
return result;
}
static void print_usage(char *elf_name) {
printf("Usage: %s [-b bar_id] [-s sock_path] [-t] [-h] [-v] [-V]\n", elf_name);
printf("\n");
printf("-b, --bar_id <bar_id>\tBar ID for which to get the configuration, defaults to the first bar from the i3 config\n");
printf("-s, --socket <sock_path>\tConnect to i3 via <sock_path>\n");
printf("-t, --transparency Enable transparency (RGBA colors)\n");
printf("-h, --help Display this help message and exit\n");
printf("-v, --version Display version number and exit\n");
printf("-V, --verbose Enable verbose mode\n");
printf("\n");
printf(" PLEASE NOTE that i3bar will be automatically started by i3\n"
" as soon as there is a 'bar' configuration block in your\n"
" config file. You should never need to start it manually.\n");
printf("\n");
}
/*
* We watch various signals, that are there to make our application stop.
* If we get one of those, we ev_unloop() and invoke the cleanup routines
* in main() with that
*
*/
static void sig_cb(struct ev_loop *loop, ev_signal *watcher, int revents) {
switch (watcher->signum) {
case SIGTERM:
DLOG("Got a SIGTERM, stopping\n");
break;
case SIGINT:
DLOG("Got a SIGINT, stopping\n");
break;
case SIGHUP:
DLOG("Got a SIGHUP, stopping\n");
}
ev_unloop(main_loop, EVUNLOOP_ALL);
}
int main(int argc, char **argv) {
char *socket_path = NULL;
/* Initialize the standard config to use 0 as default */
memset(&config, '\0', sizeof(config_t));
static struct option long_opt[] = {
{"socket", required_argument, 0, 's'},
{"bar_id", required_argument, 0, 'b'},
{"transparency", no_argument, 0, 't'},
{"help", no_argument, 0, 'h'},
{"version", no_argument, 0, 'v'},
{"verbose", no_argument, 0, 'V'},
{NULL, 0, 0, 0}};
int opt;
int option_index = 0;
while ((opt = getopt_long(argc, argv, "b:s:thvV", long_opt, &option_index)) != -1) {
switch (opt) {
case 's':
socket_path = expand_path(optarg);
break;
case 'v':
printf("i3bar version " I3_VERSION " © 2010 Axel Wagner and contributors\n");
exit(EXIT_SUCCESS);
break;
case 'b':
config.bar_id = sstrdup(optarg);
break;
case 't':
config.transparency = true;
break;
case 'V':
config.verbose = true;
break;
default:
print_usage(argv[0]);
exit(EXIT_FAILURE);
break;
}
}
LOG("i3bar version " I3_VERSION "\n");
main_loop = ev_default_loop(0); /* needed in init_xcb_early */
char *atom_sock_path = init_xcb_early();
/* Select a socket_path if the user hasn't specified one */
if (socket_path == NULL) {
socket_path = getenv("I3SOCK");
if (socket_path != NULL) {
socket_path = sstrdup(socket_path);
}
}
if (socket_path == NULL) {
socket_path = atom_sock_path;
} else {
free(atom_sock_path);
}
if (socket_path == NULL) {
char *i3_default_sock_path = "/tmp/i3-ipc.sock";
ELOG("No socket path specified, default to %s\n", i3_default_sock_path);
socket_path = sstrdup(i3_default_sock_path);
}
init_dpi();
init_outputs();
init_connection(socket_path);
/* Request the bar configuration. When it arrives, we fill the config
* array. In case that config.bar_id is empty, we will receive a list of
* available configs and then request the configuration for the first bar.
* See got_bar_config for more. */
i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_BAR_CONFIG, config.bar_id);
free(socket_path);
/* We listen to SIGTERM/QUIT/INT and try to exit cleanly, by stopping the main loop.
* We only need those watchers on the stack, so putting them on the stack saves us
* some calls to free() */
ev_signal *sig_term = smalloc(sizeof(ev_signal));
ev_signal *sig_int = smalloc(sizeof(ev_signal));
ev_signal *sig_hup = smalloc(sizeof(ev_signal));
ev_signal_init(sig_term, &sig_cb, SIGTERM);
ev_signal_init(sig_int, &sig_cb, SIGINT);
ev_signal_init(sig_hup, &sig_cb, SIGHUP);
ev_signal_start(main_loop, sig_term);
ev_signal_start(main_loop, sig_int);
ev_signal_start(main_loop, sig_hup);
atexit(kill_children_at_exit);
/* From here on everything should run smooth for itself, just start listening for
* events. We stop simply stop the event loop, when we are finished */
ev_loop(main_loop, 0);
clean_xcb();
ev_default_destroy();
return 0;
}
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