316 lines
10 KiB
C
316 lines
10 KiB
C
/*
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* i3bar - an xcb-based status- and ws-bar for i3
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*
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* © 2010-2011 Axel Wagner and contributors
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*
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* See file LICNSE for license information
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*
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*/
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#include <stdio.h>
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#include <i3/ipc.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <ev.h>
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#include <getopt.h>
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#include <glob.h>
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#include "common.h"
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/*
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* Glob path, i.e. expand ~
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*
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*/
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char *expand_path(char *path) {
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static glob_t globbuf;
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if (glob(path, GLOB_NOCHECK | GLOB_TILDE, NULL, &globbuf) < 0) {
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ELOG("glob() failed\n");
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exit(EXIT_FAILURE);
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}
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char *result = strdup(globbuf.gl_pathc > 0 ? globbuf.gl_pathv[0] : path);
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if (result == NULL) {
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ELOG("malloc() failed: %s\n", strerror(errno));
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exit(EXIT_FAILURE);
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}
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globfree(&globbuf);
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return result;
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}
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static void read_color(char **color) {
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int len = strlen(optarg);
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if (len == 6 || (len == 7 && optarg[0] == '#')) {
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int offset = len - 6;
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int good = 1, i;
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for (i = offset; good && i < 6 + offset; ++i) {
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char c = optarg[i];
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if (!(c >= 'a' && c <= 'f')
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&& !(c >= 'A' && c <= 'F')
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&& !(c >= '0' && c <= '9')) {
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good = 0;
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break;
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}
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}
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if (good) {
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*color = strdup(optarg + offset);
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return;
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}
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}
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fprintf(stderr, "Bad color value \"%s\"\n", optarg);
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exit(EXIT_FAILURE);
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}
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static void free_colors(struct xcb_color_strings_t *colors) {
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#define FREE_COLOR(x) \
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do { \
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if (colors->x) \
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free(colors->x); \
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} while (0)
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FREE_COLOR(bar_fg);
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FREE_COLOR(bar_bg);
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FREE_COLOR(active_ws_fg);
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FREE_COLOR(active_ws_bg);
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FREE_COLOR(inactive_ws_fg);
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FREE_COLOR(inactive_ws_bg);
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FREE_COLOR(urgent_ws_fg);
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FREE_COLOR(urgent_ws_bg);
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FREE_COLOR(focus_ws_fg);
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FREE_COLOR(focus_ws_bg);
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#undef FREE_COLOR
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}
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void print_usage(char *elf_name) {
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printf("Usage: %s [-s sock_path] [-c command] [-m|-d[pos]] [-f font] [-V] [-h]\n", elf_name);
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printf("-s <sock_path>\tConnect to i3 via <sock_path>\n");
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printf("-c <command>\tExecute <command> to get stdin\n");
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printf("-m\t\tHide the bars, when mod4 is not pressed.\n");
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printf("-d[<pos>]\tEnable dockmode. <pos> is \"top\" or \"bottom\". Default is bottom\n");
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printf("\t\tIf -c is specified, the childprocess is sent a SIGSTOP on hiding,\n");
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printf("\t\tand a SIGCONT on unhiding of the bars\n");
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printf("-f <font>\tUse X-Core-Font <font> for display\n");
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printf("-w\t\tDisable workspace-buttons\n");
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printf("-V\t\tBe (very) verbose with the debug-output\n");
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printf("-h\t\tDisplay this help-message and exit\n");
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}
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/*
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* We watch various signals, that are there to make our application stop.
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* If we get one of those, we ev_unloop() and invoke the cleanup-routines
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* in main() with that
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*
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*/
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void sig_cb(struct ev_loop *loop, ev_signal *watcher, int revents) {
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switch (watcher->signum) {
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case SIGTERM:
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DLOG("Got a SIGTERM, stopping\n");
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break;
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case SIGINT:
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DLOG("Got a SIGINT, stopping\n");
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break;
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case SIGHUP:
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DLOG("Got a SIGHUP, stopping\n");
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}
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ev_unloop(main_loop, EVUNLOOP_ALL);
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}
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int main(int argc, char **argv) {
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int opt;
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int option_index = 0;
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char *socket_path = getenv("I3SOCK");
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char *command = NULL;
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char *fontname = NULL;
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char *i3_default_sock_path = "/tmp/i3-ipc.sock";
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struct xcb_color_strings_t colors = { NULL, };
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/* Definition of the standard-config */
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config.hide_on_modifier = 0;
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config.dockpos = DOCKPOS_NONE;
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config.disable_ws = 0;
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static struct option long_opt[] = {
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{ "socket", required_argument, 0, 's' },
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{ "command", required_argument, 0, 'c' },
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{ "hide", no_argument, 0, 'm' },
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{ "dock", optional_argument, 0, 'd' },
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{ "font", required_argument, 0, 'f' },
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{ "nows", no_argument, 0, 'w' },
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{ "help", no_argument, 0, 'h' },
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{ "version", no_argument, 0, 'v' },
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{ "verbose", no_argument, 0, 'V' },
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{ "color-bar-fg", required_argument, 0, 'A' },
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{ "color-bar-bg", required_argument, 0, 'B' },
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{ "color-active-ws-fg", required_argument, 0, 'C' },
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{ "color-active-ws-bg", required_argument, 0, 'D' },
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{ "color-inactive-ws-fg", required_argument, 0, 'E' },
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{ "color-inactive-ws-bg", required_argument, 0, 'F' },
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{ "color-urgent-ws-bg", required_argument, 0, 'G' },
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{ "color-urgent-ws-fg", required_argument, 0, 'H' },
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{ "color-focus-ws-bg", required_argument, 0, 'I' },
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{ "color-focus-ws-fg", required_argument, 0, 'J' },
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{ NULL, 0, 0, 0}
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};
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while ((opt = getopt_long(argc, argv, "s:c:d::mf:whvVA:B:C:D:E:F:G:H:I:J:", long_opt, &option_index)) != -1) {
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switch (opt) {
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case 's':
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socket_path = expand_path(optarg);
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break;
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case 'c':
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command = strdup(optarg);
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break;
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case 'm':
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config.hide_on_modifier = 1;
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break;
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case 'd':
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config.hide_on_modifier = 0;
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if (optarg == NULL) {
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config.dockpos = DOCKPOS_BOT;
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break;
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}
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if (!strcmp(optarg, "top")) {
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config.dockpos = DOCKPOS_TOP;
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} else if (!strcmp(optarg, "bottom")) {
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config.dockpos = DOCKPOS_BOT;
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} else {
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print_usage(argv[0]);
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exit(EXIT_FAILURE);
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}
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break;
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case 'f':
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fontname = strdup(optarg);
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break;
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case 'w':
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config.disable_ws = 1;
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break;
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case 'v':
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printf("i3bar version " I3_VERSION " © 2010-2011 Axel Wagner and contributors\n");
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exit(EXIT_SUCCESS);
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break;
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case 'V':
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config.verbose = 1;
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break;
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case 'A':
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read_color(&colors.bar_fg);
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break;
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case 'B':
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read_color(&colors.bar_bg);
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break;
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case 'C':
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read_color(&colors.active_ws_fg);
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break;
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case 'D':
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read_color(&colors.active_ws_bg);
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break;
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case 'E':
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read_color(&colors.inactive_ws_fg);
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break;
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case 'F':
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read_color(&colors.inactive_ws_bg);
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break;
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case 'G':
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read_color(&colors.urgent_ws_bg);
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break;
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case 'H':
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read_color(&colors.urgent_ws_fg);
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break;
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case 'I':
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read_color(&colors.focus_ws_bg);
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break;
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case 'J':
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read_color(&colors.focus_ws_fg);
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break;
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default:
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print_usage(argv[0]);
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exit(EXIT_SUCCESS);
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break;
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}
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}
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if (fontname == NULL) {
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/* This is a very restrictive default. More sensefull would be something like
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* "-misc-*-*-*-*--*-*-*-*-*-*-*-*". But since that produces very ugly results
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* on my machine, let's stick with this until we have a configfile */
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fontname = "-misc-fixed-medium-r-semicondensed--12-110-75-75-c-60-iso10646-1";
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}
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if (config.dockpos != DOCKPOS_NONE) {
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if (config.hide_on_modifier) {
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ELOG("--dock and --hide are mutually exclusive!\n");
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exit(EXIT_FAILURE);
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}
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} else {
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config.hide_on_modifier = 1;
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}
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main_loop = ev_default_loop(0);
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init_colors(&colors);
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char *atom_sock_path = init_xcb(fontname);
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if (socket_path == NULL) {
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socket_path = atom_sock_path;
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}
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if (socket_path == NULL) {
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ELOG("No Socket Path Specified, default to %s\n", i3_default_sock_path);
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socket_path = expand_path(i3_default_sock_path);
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}
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free_colors(&colors);
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init_outputs();
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if (init_connection(socket_path)) {
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/* We subscribe to the i3-events we need */
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subscribe_events();
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/* We initiate the main-function by requesting infos about the outputs and
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* workspaces. Everything else (creating the bars, showing the right workspace-
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* buttons and more) is taken care of by the event-driveniness of the code */
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i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_OUTPUTS, NULL);
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if (!config.disable_ws) {
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i3_send_msg(I3_IPC_MESSAGE_TYPE_GET_WORKSPACES, NULL);
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}
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}
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/* The name of this function is actually misleading. Even if no -c is specified,
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* this function initiates the watchers to listen on stdin and react accordingly */
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start_child(command);
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FREE(command);
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/* We listen to SIGTERM/QUIT/INT and try to exit cleanly, by stopping the main-loop.
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* We only need those watchers on the stack, so putting them on the stack saves us
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* some calls to free() */
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ev_signal *sig_term = malloc(sizeof(ev_signal));
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ev_signal *sig_int = malloc(sizeof(ev_signal));
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ev_signal *sig_hup = malloc(sizeof(ev_signal));
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if (sig_term == NULL || sig_int == NULL || sig_hup == NULL) {
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ELOG("malloc() failed: %s\n", strerror(errno));
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exit(EXIT_FAILURE);
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}
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ev_signal_init(sig_term, &sig_cb, SIGTERM);
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ev_signal_init(sig_int, &sig_cb, SIGINT);
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ev_signal_init(sig_hup, &sig_cb, SIGHUP);
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ev_signal_start(main_loop, sig_term);
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ev_signal_start(main_loop, sig_int);
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ev_signal_start(main_loop, sig_hup);
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/* From here on everything should run smooth for itself, just start listening for
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* events. We stop simply stop the event-loop, when we are finished */
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ev_loop(main_loop, 0);
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kill_child();
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FREE(statusline_buffer);
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clean_xcb();
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ev_default_destroy();
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free_workspaces();
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return 0;
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}
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