WINGs/wapplication.c

   1
   2 #include <unistd.h>
   3 #include <X11/Xlocale.h>
   4
   5 #include "WINGsP.h"
   6 #include "wconfig.h"
   7
   8
   9 struct W_Application WMApplication;
  10
  11 char *_WINGS_progname = NULL;
  12
  13 Bool W_ApplicationInitialized(void)
  14 {
  15         return _WINGS_progname != NULL;
  16 }
  17
  18 void WMInitializeApplication(const char *applicationName, int *argc, char **argv)
  19 {
  20         int i;
  21
  22         assert(argc != NULL);
  23         assert(argv != NULL);
  24         assert(applicationName != NULL);
  25
  26         setlocale(LC_ALL, "");
  27
  28 #ifdef I18N
  29         if (getenv("NLSPATH"))
  30                 bindtextdomain("WINGs", getenv("NLSPATH"));
  31         else
  32                 bindtextdomain("WINGs", LOCALEDIR);
  33         bind_textdomain_codeset("WINGs", "UTF-8");
  34 #endif
  35
  36         _WINGS_progname = argv[0];
  37
  38         WMApplication.applicationName = wstrdup(applicationName);
  39         WMApplication.argc = *argc;
  40
  41         WMApplication.argv = wmalloc((*argc + 1) * sizeof(char *));
  42         for (i = 0; i < *argc; i++) {
  43                 WMApplication.argv[i] = wstrdup(argv[i]);
  44         }
  45         WMApplication.argv[i] = NULL;
  46
  47         /* initialize notification center */
  48         W_InitNotificationCenter();
  49 }
  50
  51 void WMSetResourcePath(const char *path)
  52 {
  53         if (WMApplication.resourcePath)
  54                 wfree(WMApplication.resourcePath);
  55         WMApplication.resourcePath = wstrdup(path);
  56 }
  57
  58 char *WMGetApplicationName()
  59 {
  60         return WMApplication.applicationName;
  61 }
  62
  63 static char *checkFile(const char *path, const char *folder, const char *ext, const char *resource)
  64 {
  65         char *ret;
  66         int extralen;
  67         size_t slen;
  68
  69         if (!path || !resource)
  70                 return NULL;
  71
  72         extralen = (ext ? strlen(ext) + 1 : 0) + (folder ? strlen(folder) + 1 : 0) + 1;
  73         slen = strlen(path) + strlen(resource) + 1 + extralen;
  74         ret = wmalloc(slen);
  75
  76         if (wstrlcpy(ret, path, slen) >= slen)
  77                 goto error;
  78
  79         if (folder &&
  80                 (wstrlcat(ret, "/", slen) >= slen ||
  81                  wstrlcat(ret, folder, slen) >= slen))
  82                         goto error;
  83
  84         if (ext &&
  85                 (wstrlcat(ret, "/", slen) >= slen ||
  86                  wstrlcat(ret, ext, slen) >= slen))
  87                         goto error;
  88
  89         if (wstrlcat(ret, "/", slen) >= slen ||
  90             wstrlcat(ret, resource, slen) >= slen)
  91                 goto error;
  92
  93         if (access(ret, F_OK) != 0)
  94                 goto error;
  95
  96         return ret;
  97
  98 error:
  99         if (ret)
 100                 wfree(ret);
 101         return NULL;
 102 }
 103
 104 char *WMPathForResourceOfType(const char *resource, const char *ext)
 105 {
 106         char *path, *tmp, *appdir;
 107         int i;
 108         size_t slen;
 109
 110         path = tmp = appdir = NULL;
 111
 112         /*
 113          * Paths are searched in this order:
 114          * - resourcePath/ext
 115          * - dirname(argv[0])/ext
 116          * - GNUSTEP_USER_ROOT/Applications/ApplicationName.app/ext
 117          * - ~/GNUstep/Applications/ApplicationName.app/ext
 118          * - GNUSTEP_LOCAL_ROOT/Applications/ApplicationName.app/ext
 119          * - /usr/local/GNUstep/Applications/ApplicationName.app/ext
 120          * - GNUSTEP_SYSTEM_ROOT/Applications/ApplicationName.app/ext
 121          * - /usr/GNUstep/Applications/ApplicationName.app/ext
 122          */
 123
 124         if (WMApplication.resourcePath) {
 125                 path = checkFile(WMApplication.resourcePath, NULL, ext, resource);
 126                 if (path)
 127                         goto out;
 128         }
 129
 130         if (WMApplication.argv[0]) {
 131                 tmp = wstrdup(WMApplication.argv[0]);
 132                 i = strlen(tmp);
 133                 while (i > 0 && tmp[i] != '/')
 134                         i--;
 135                 tmp[i] = 0;
 136                 if (i > 0) {
 137                         path = checkFile(tmp, NULL, ext, resource);
 138                 } else {
 139                         path = NULL;
 140                 }
 141                 goto out;
 142         }
 143
 144         slen = strlen(WMApplication.applicationName) + sizeof("Applications/.app");
 145         appdir = wmalloc(slen);
 146         if (snprintf(appdir, slen, "Applications/%s.app", WMApplication.applicationName) >= slen)
 147                 goto out;
 148
 149         path = checkFile(getenv("GNUSTEP_USER_ROOT"), appdir, ext, resource);
 150         if (path)
 151                 goto out;
 152
 153         path = checkFile(wusergnusteppath(), appdir, ext, resource);
 154         if (path)
 155                 goto out;
 156
 157         path = checkFile(getenv("GNUSTEP_LOCAL_ROOT"), appdir, ext, resource);
 158         if (path)
 159                 goto out;
 160
 161         path = checkFile("/usr/local/GNUstep", appdir, ext, resource);
 162         if (path)
 163                 goto out;
 164
 165         path = checkFile(getenv("GNUSTEP_SYSTEM_ROOT"), appdir, ext, resource);
 166         if (path)
 167                 goto out;
 168
 169         path = checkFile("/usr/GNUstep", appdir, ext, resource); /* falls through */
 170
 171 out:
 172         if (tmp)
 173                 wfree(tmp);
 174         if (appdir)
 175                 wfree(appdir);
 176
 177         return path;
 178
 179 }