luakit.c

   1 /*
   2  * luakit.c - luakit main functions
   3  *
   4  * Copyright (C) 2010 Mason Larobina <mason.larobina@gmail.com>
   5  * Copyright (C) 2009 Enno Boland <gottox@s01.de>
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 #include <gtk/gtk.h>
  23 #include <signal.h>
  24 #include <stdlib.h>
  25 #include <sys/wait.h>
  26 #include "globalconf.h"
  27 #include "common/util.h"
  28 #include "luah.h"
  29 #include "luakit.h"
  30
  31 static void sigchld(int sigint);
  32
  33 void
  34 sigchld(int signum) {
  35     (void) signum;
  36     if (signal(SIGCHLD, sigchld) == SIG_ERR)
  37         fatal("Can't install SIGCHLD handler");
  38     while(0 < waitpid(-1, NULL, WNOHANG));
  39 }
  40
  41 /* load command line options into luakit and return uris to load */
  42 gchar**
  43 parseopts(int argc, char *argv[]) {
  44     GOptionContext *context;
  45     gboolean *only_version = NULL;
  46     gchar **uris = NULL;
  47
  48     /* define command line options */
  49     const GOptionEntry entries[] = {
  50       { "uri",     'u', 0, G_OPTION_ARG_STRING_ARRAY, &uris,                 "uri(s) to load at startup", "URI"  },
  51       { "config",  'c', 0, G_OPTION_ARG_STRING,       &globalconf.confpath,  "configuration file to use", "FILE" },
  52       { "version", 'V', 0, G_OPTION_ARG_NONE,         &only_version,         "print version and exit",    NULL   },
  53       { "verbose", 'v', 0, G_OPTION_ARG_NONE,         &globalconf.verbose,   "print debugging output",      NULL   },
  54       { NULL,      0,   0, 0,                         NULL,                  NULL,                        NULL   },
  55     };
  56
  57     /* parse command line options */
  58     context = g_option_context_new("[URI...]");
  59     g_option_context_add_main_entries(context, entries, NULL);
  60     g_option_context_add_group(context, gtk_get_option_group(TRUE));
  61     // TODO Passing gtk options (like --sync) to luakit causes a segfault right
  62     // here. I'm clueless.
  63     g_option_context_parse(context, &argc, &argv, NULL);
  64     g_option_context_free(context);
  65
  66     /* print version and exit */
  67     if(only_version) {
  68         g_printf("Version: %s\n", VERSION);
  69         exit(EXIT_SUCCESS);
  70     }
  71
  72     if (uris && argv[1])
  73         fatal("invalid mix of -u and default uri arguments");
  74
  75     if (uris)
  76         return uris;
  77     else
  78         return argv+1;
  79 }
  80
  81 void
  82 init_lua(gchar **uris)
  83 {
  84     gchar *uri;
  85     lua_State *L;
  86
  87     /* init globalconf structs */
  88     globalconf.signals = signal_tree_new();
  89     globalconf.windows = g_ptr_array_new();
  90
  91     /* init lua */
  92     luaH_init();
  93     L = globalconf.L;
  94
  95     /* push a table of the statup uris */
  96     lua_newtable(L);
  97     for (gint i = 0; (uri = uris[i]); i++) {
  98         lua_pushstring(L, uri);
  99         lua_rawseti(L, -2, i + 1);
 100     }
 101     lua_setglobal(L, "uris");
 102
 103     /* parse and run configuration file */
 104     if(!luaH_parserc(globalconf.confpath, TRUE))
 105         fatal("couldn't find rc file");
 106
 107     if (!globalconf.windows->len)
 108         fatal("no windows spawned by rc file, exiting");
 109 }
 110
 111 void
 112 init_directories(void)
 113 {
 114     /* create luakit directory */
 115     globalconf.cache_dir  = g_build_filename(g_get_user_cache_dir(),  "luakit", NULL);
 116     globalconf.config_dir = g_build_filename(g_get_user_config_dir(), "luakit", NULL);
 117     globalconf.data_dir   = g_build_filename(g_get_user_data_dir(),   "luakit", NULL);
 118     g_mkdir_with_parents(globalconf.cache_dir,  0771);
 119     g_mkdir_with_parents(globalconf.config_dir, 0771);
 120     g_mkdir_with_parents(globalconf.data_dir,   0771);
 121 }
 122
 123 int
 124 main(int argc, char *argv[]) {
 125     gchar **uris = NULL;
 126
 127     /* clean up any zombies */
 128     sigchld(0);
 129
 130     gtk_init(&argc, &argv);
 131     if (!g_thread_supported())
 132         g_thread_init(NULL);
 133
 134     /* parse command line opts and get uris to load */
 135     uris = parseopts(argc, argv);
 136
 137     init_directories();
 138     init_lua(uris);
 139
 140     gtk_main();
 141     return EXIT_SUCCESS;
 142 }
 143
 144 // vim: ft=c:et:sw=4:ts=8:sts=4:tw=80