WPrefs.app/main.c

   1 /*
   2  *  WPrefs - Window Maker Preferences Program
   3  *
   4  *  Copyright (c) 1998-2003 Alfredo K. Kojima
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License along
  17  *  with this program; if not, write to the Free Software Foundation, Inc.,
  18  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include "config.h"
  22
  23 #include "WPrefs.h"
  24
  25 #include <assert.h>
  26
  27 #include <X11/Xlocale.h>
  28 #include <X11/XKBlib.h>
  29
  30 #include <sys/wait.h>
  31 #include <unistd.h>
  32
  33 #ifdef HAVE_STDNORETURN
  34 #include <stdnoreturn.h>
  35 #endif
  36
  37 char *NOptionValueChanged = "NOptionValueChanged";
  38 Bool xext_xkb_supported = False;
  39
  40
  41 #define MAX_DEATHS      64
  42
  43 struct {
  44         pid_t pid;
  45         void *data;
  46         void (*handler) (void *);
  47 } DeadHandlers[MAX_DEATHS];
  48
  49 static pid_t DeadChildren[MAX_DEATHS];
  50 static int DeadChildrenCount = 0;
  51
  52 static noreturn void wAbort(Bool foo)
  53 {
  54         /* Parameter not used, but tell the compiler that it is ok */
  55         (void) foo;
  56
  57         exit(1);
  58 }
  59
  60 static void print_help(const char *progname)
  61 {
  62         printf(_("usage: %s [options]\n"), progname);
  63         puts(_("options:"));
  64         puts(_(" -display <display>     display to be used"));
  65         puts(_(" --version              print version number and exit"));
  66         puts(_(" --help         print this message and exit"));
  67 }
  68
  69 #if 0
  70 static RETSIGTYPE handleDeadChild(int sig)
  71 {
  72         pid_t pid;
  73         int status;
  74
  75         pid = waitpid(-1, &status, WNOHANG);
  76         if (pid > 0) {
  77                 DeadChildren[DeadChildrenCount++] = pid;
  78         }
  79 }
  80 #endif
  81
  82 void AddDeadChildHandler(pid_t pid, void (*handler) (void *), void *data)
  83 {
  84         int i;
  85
  86         for (i = 0; i < MAX_DEATHS; i++) {
  87                 if (DeadHandlers[i].pid == 0) {
  88                         DeadHandlers[i].pid = pid;
  89                         DeadHandlers[i].handler = handler;
  90                         DeadHandlers[i].data = data;
  91                         break;
  92                 }
  93         }
  94         assert(i != MAX_DEATHS);
  95 }
  96
  97 int main(int argc, char **argv)
  98 {
  99         Display *dpy;
 100         WMScreen *scr;
 101         char *path;
 102         int i;
 103         char *display_name = "";
 104
 105         wsetabort(wAbort);
 106
 107         memset(DeadHandlers, 0, sizeof(DeadHandlers));
 108
 109         WMInitializeApplication("WPrefs", &argc, argv);
 110
 111         WMSetResourcePath(RESOURCE_PATH);
 112         path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 113         if (!path) {
 114                 /* maybe it is run directly from the source directory */
 115                 WMSetResourcePath(".");
 116                 path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 117                 if (!path) {
 118                         WMSetResourcePath("..");
 119                 }
 120         }
 121         if (path) {
 122                 wfree(path);
 123         }
 124
 125         if (argc > 1) {
 126                 for (i = 1; i < argc; i++) {
 127                         if (strcmp(argv[i], "-version") == 0 || strcmp(argv[i], "--version") == 0) {
 128                                 printf("WPrefs (Window Maker) %s\n", VERSION);
 129                                 exit(0);
 130                         } else if (strcmp(argv[i], "-display") == 0) {
 131                                 i++;
 132                                 if (i >= argc) {
 133                                         wwarning(_("too few arguments for %s"), argv[i - 1]);
 134                                         exit(0);
 135                                 }
 136                                 display_name = argv[i];
 137                         } else {
 138                                 print_help(argv[0]);
 139                                 exit(0);
 140                         }
 141                 }
 142         }
 143
 144         setlocale(LC_ALL, "");
 145
 146 #ifdef I18N
 147         if (getenv("NLSPATH"))
 148                 bindtextdomain("WPrefs", getenv("NLSPATH"));
 149         else
 150                 bindtextdomain("WPrefs", LOCALEDIR);
 151         bind_textdomain_codeset("WPrefs", "UTF-8");
 152         textdomain("WPrefs");
 153
 154         if (!XSupportsLocale()) {
 155                 wwarning(_("X server does not support locale"));
 156         }
 157         if (XSetLocaleModifiers("") == NULL) {
 158                 wwarning(_("cannot set locale modifiers"));
 159         }
 160 #endif
 161
 162         dpy = XOpenDisplay(display_name);
 163         if (!dpy) {
 164                 wfatal(_("could not open display %s"), XDisplayName(display_name));
 165                 exit(0);
 166         }
 167 #if 0
 168         XSynchronize(dpy, 1);
 169 #endif
 170         scr = WMCreateScreen(dpy, DefaultScreen(dpy));
 171         if (!scr) {
 172                 wfatal(_("could not initialize application"));
 173                 exit(0);
 174         }
 175
 176         xext_xkb_supported = XkbQueryExtension(dpy, NULL, NULL, NULL, NULL, NULL);
 177
 178         WMPLSetCaseSensitive(False);
 179
 180         Initialize(scr);
 181
 182         while (1) {
 183                 XEvent event;
 184
 185                 WMNextEvent(dpy, &event);
 186
 187                 while (DeadChildrenCount-- > 0) {
 188                         int i;
 189
 190                         for (i = 0; i < MAX_DEATHS; i++) {
 191                                 if (DeadChildren[i] == DeadHandlers[i].pid) {
 192                                         (*DeadHandlers[i].handler) (DeadHandlers[i].data);
 193                                         DeadHandlers[i].pid = 0;
 194                                 }
 195                         }
 196                 }
 197
 198                 WMHandleEvent(&event);
 199         }
 200 }