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 void AddDeadChildHandler(pid_t pid, void (*handler) (void *), void *data)
  70 {
  71         int i;
  72
  73         for (i = 0; i < MAX_DEATHS; i++) {
  74                 if (DeadHandlers[i].pid == 0) {
  75                         DeadHandlers[i].pid = pid;
  76                         DeadHandlers[i].handler = handler;
  77                         DeadHandlers[i].data = data;
  78                         break;
  79                 }
  80         }
  81         assert(i != MAX_DEATHS);
  82 }
  83
  84 int main(int argc, char **argv)
  85 {
  86         Display *dpy;
  87         WMScreen *scr;
  88         char *path;
  89         int i;
  90         char *display_name = "";
  91
  92         wsetabort(wAbort);
  93
  94         memset(DeadHandlers, 0, sizeof(DeadHandlers));
  95
  96         WMInitializeApplication("WPrefs", &argc, argv);
  97
  98         WMSetResourcePath(RESOURCE_PATH);
  99         path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 100         if (!path) {
 101                 /* maybe it is run directly from the source directory */
 102                 WMSetResourcePath(".");
 103                 path = WMPathForResourceOfType("WPrefs.tiff", NULL);
 104                 if (!path) {
 105                         WMSetResourcePath("..");
 106                 }
 107         }
 108         if (path) {
 109                 wfree(path);
 110         }
 111
 112         if (argc > 1) {
 113                 for (i = 1; i < argc; i++) {
 114                         if (strcmp(argv[i], "-version") == 0 || strcmp(argv[i], "--version") == 0) {
 115                                 printf("WPrefs (Window Maker) %s\n", VERSION);
 116                                 exit(0);
 117                         } else if (strcmp(argv[i], "-display") == 0) {
 118                                 i++;
 119                                 if (i >= argc) {
 120                                         wwarning(_("too few arguments for %s"), argv[i - 1]);
 121                                         exit(0);
 122                                 }
 123                                 display_name = argv[i];
 124                         } else {
 125                                 print_help(argv[0]);
 126                                 exit(0);
 127                         }
 128                 }
 129         }
 130
 131         setlocale(LC_ALL, "");
 132
 133 #ifdef I18N
 134         if (getenv("NLSPATH"))
 135                 bindtextdomain("WPrefs", getenv("NLSPATH"));
 136         else
 137                 bindtextdomain("WPrefs", LOCALEDIR);
 138         bind_textdomain_codeset("WPrefs", "UTF-8");
 139         textdomain("WPrefs");
 140
 141         if (!XSupportsLocale()) {
 142                 wwarning(_("X server does not support locale"));
 143         }
 144         if (XSetLocaleModifiers("") == NULL) {
 145                 wwarning(_("cannot set locale modifiers"));
 146         }
 147 #endif
 148
 149         dpy = XOpenDisplay(display_name);
 150         if (!dpy) {
 151                 wfatal(_("could not open display %s"), XDisplayName(display_name));
 152                 exit(0);
 153         }
 154         scr = WMCreateScreen(dpy, DefaultScreen(dpy));
 155         if (!scr) {
 156                 wfatal(_("could not initialize application"));
 157                 exit(0);
 158         }
 159
 160         xext_xkb_supported = XkbQueryExtension(dpy, NULL, NULL, NULL, NULL, NULL);
 161
 162         WMPLSetCaseSensitive(False);
 163
 164         Initialize(scr);
 165
 166         while (1) {
 167                 XEvent event;
 168
 169                 WMNextEvent(dpy, &event);
 170
 171                 while (DeadChildrenCount-- > 0) {
 172                         int i;
 173
 174                         for (i = 0; i < MAX_DEATHS; i++) {
 175                                 if (DeadChildren[i] == DeadHandlers[i].pid) {
 176                                         (*DeadHandlers[i].handler) (DeadHandlers[i].data);
 177                                         DeadHandlers[i].pid = 0;
 178                                 }
 179                         }
 180                 }
 181
 182                 WMHandleEvent(&event);
 183         }
 184 }