2 * i3bar - an xcb-based status- and ws-bar for i3
4 * © 2010 Axel Wagner and contributors
6 * See file LICNSE for license information
22 * Glob path, i.e. expand ~
25 char *expand_path(char *path) {
26 static glob_t globbuf;
27 if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0) {
28 ELOG("glob() failed\n");
31 char *result = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
33 ELOG("malloc() failed: %s\n", strerror(errno));
40 static void read_color(char **color) {
41 int len = strlen(optarg);
42 if (len == 6 || (len == 7 && optarg[0] == '#')) {
45 for (i = offset; good && i < 6 + offset; ++i) {
47 if (!(c >= 'a' && c <= 'f')
48 && !(c >= 'A' && c <= 'F')
49 && !(c >= '0' && c <= '9')) {
55 *color = strdup(optarg + offset);
60 fprintf(stderr, "Bad color value \"%s\"\n", optarg);
64 static void free_colors(struct xcb_color_strings_t *colors) {
65 #define FREE_COLOR(x) \
72 FREE_COLOR(active_ws_fg);
73 FREE_COLOR(active_ws_bg);
74 FREE_COLOR(inactive_ws_fg);
75 FREE_COLOR(inactive_ws_bg);
76 FREE_COLOR(urgent_ws_fg);
77 FREE_COLOR(urgent_ws_bg);
81 void print_usage(char *elf_name) {
82 printf("Usage: %s [-s sock_path] [-c command] [-m|-d[pos]] [-f font] [-V] [-h]\n", elf_name);
83 printf("-s <sock_path>\tConnect to i3 via <sock_path>\n");
84 printf("-c <command>\tExecute <command> to get stdin\n");
85 printf("-m\t\tHide the bars, when mod4 is not pressed.\n");
86 printf("-d[<pos>]\tEnable dockmode. <pos> is \"top\" or \"bottom\". Default is bottom\n");
87 printf("\t\tIf -c is specified, the childprocess is sent a SIGSTOP on hiding,\n");
88 printf("\t\tand a SIGCONT on unhiding of the bars\n");
89 printf("-f <font>\tUse X-Core-Font <font> for display\n");
90 printf("-V\t\tBe (very) verbose with the debug-output\n");
91 printf("-h\t\tDisplay this help-message and exit\n");
95 * We watch various signals, that are there to make our application stop.
96 * If we get one of those, we ev_unloop() and invoke the cleanup-routines
100 void sig_cb(struct ev_loop *loop, ev_signal *watcher, int revents) {
101 switch (watcher->signum) {
103 DLOG("Got a SIGTERM, stopping\n");
106 DLOG("Got a SIGINT, stopping\n");
109 DLOG("Got a SIGHUP, stopping\n");
111 ev_unloop(main_loop, EVUNLOOP_ALL);
114 int main(int argc, char **argv) {
116 int option_index = 0;
117 char *socket_path = getenv("I3SOCK");
118 char *command = NULL;
119 char *fontname = NULL;
120 char *i3_default_sock_path = "/tmp/i3-ipc.sock";
121 struct xcb_color_strings_t colors = { NULL, };
123 /* Definition of the standard-config */
124 config.hide_on_modifier = 0;
125 config.dockpos = DOCKPOS_NONE;
127 static struct option long_opt[] = {
128 { "socket", required_argument, 0, 's' },
129 { "command", required_argument, 0, 'c' },
130 { "hide", no_argument, 0, 'm' },
131 { "dock", optional_argument, 0, 'd' },
132 { "font", required_argument, 0, 'f' },
133 { "help", no_argument, 0, 'h' },
134 { "version", no_argument, 0, 'v' },
135 { "verbose", no_argument, 0, 'V' },
136 { "color-bar-fg", required_argument, 0, 'A' },
137 { "color-bar-bg", required_argument, 0, 'B' },
138 { "color-active-ws-fg", required_argument, 0, 'C' },
139 { "color-active-ws-bg", required_argument, 0, 'D' },
140 { "color-inactive-ws-fg", required_argument, 0, 'E' },
141 { "color-inactive-ws-bg", required_argument, 0, 'F' },
142 { "color-urgent-ws-bg", required_argument, 0, 'G' },
143 { "color-urgent-ws-fg", required_argument, 0, 'H' },
147 while ((opt = getopt_long(argc, argv, "s:c:d::mf:hvVA:B:C:D:E:F:G:H:", long_opt, &option_index)) != -1) {
150 socket_path = expand_path(optarg);
153 command = strdup(optarg);
156 config.hide_on_modifier = 1;
159 config.hide_on_modifier = 0;
160 if (optarg == NULL) {
161 config.dockpos = DOCKPOS_BOT;
164 if (!strcmp(optarg, "top")) {
165 config.dockpos = DOCKPOS_TOP;
166 } else if (!strcmp(optarg, "bottom")) {
167 config.dockpos = DOCKPOS_BOT;
169 print_usage(argv[0]);
174 fontname = strdup(optarg);
177 printf("i3bar version " I3BAR_VERSION " © 2010 Axel Wagner and contributors\n");
184 read_color(&colors.bar_fg);
187 read_color(&colors.bar_bg);
190 read_color(&colors.active_ws_fg);
193 read_color(&colors.active_ws_bg);
196 read_color(&colors.inactive_ws_fg);
199 read_color(&colors.inactive_ws_bg);
202 read_color(&colors.urgent_ws_bg);
205 read_color(&colors.urgent_ws_fg);
208 print_usage(argv[0]);
214 if (fontname == NULL) {
215 /* This is a very restrictive default. More sensefull would be something like
216 * "-misc-*-*-*-*--*-*-*-*-*-*-*-*". But since that produces very ugly results
217 * on my machine, let's stick with this until we have a configfile */
218 fontname = "-misc-fixed-medium-r-semicondensed--12-110-75-75-c-60-iso10646-1";
221 if (socket_path == NULL) {
222 ELOG("No Socket Path Specified, default to %s\n", i3_default_sock_path);
223 socket_path = expand_path(i3_default_sock_path);
226 if (config.dockpos != DOCKPOS_NONE) {
227 if (config.hide_on_modifier) {
228 ELOG("--dock and --hide are mutually exclusive!\n");
232 config.hide_on_modifier = 1;
235 main_loop = ev_default_loop(0);
237 init_colors(&colors);
240 free_colors(&colors);
243 init_connection(socket_path);
245 /* We subscribe to the i3-events we need */
248 /* We initiate the main-function by requesting infos about the outputs and
249 * workspaces. Everything else (creating the bars, showing the right workspace-
250 * buttons and more) is taken care of by the event-driveniness of the code */
251 i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_OUTPUTS, NULL);
252 i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_WORKSPACES, NULL);
254 /* The name of this function is actually misleading. Even if no -c is specified,
255 * this function initiates the watchers to listen on stdin and react accordingly */
256 start_child(command);
259 /* We listen to SIGTERM/QUIT/INT and try to exit cleanly, by stopping the main-loop.
260 * We only need those watchers on the stack, so putting them on the stack saves us
261 * some calls to free() */
262 ev_signal sig_term, sig_int, sig_hup;
264 ev_signal_init(&sig_term, &sig_cb, SIGTERM);
265 ev_signal_init(&sig_int, &sig_cb, SIGINT);
266 ev_signal_init(&sig_hup, &sig_cb, SIGHUP);
268 ev_signal_start(main_loop, &sig_term);
269 ev_signal_start(main_loop, &sig_int);
270 ev_signal_start(main_loop, &sig_hup);
272 /* From here on everything should run smooth for itself, just start listening for
273 * events. We stop simply stop the event-loop, when we are finished */
274 ev_loop(main_loop, 0);
278 FREE(statusline_buffer);
281 ev_default_destroy();