WINGs/wapplication.c

   1
   2 #include <unistd.h>
   3 #include <X11/Xlocale.h>
   4
   5 #include "WINGsP.h"
   6 #include "wconfig.h"
   7 #include "userdefaults.h"
   8
   9
  10 struct W_Application WMApplication;
  11
  12 char *_WINGS_progname = NULL;
  13
  14 Bool W_ApplicationInitialized(void)
  15 {
  16         return _WINGS_progname != NULL;
  17 }
  18
  19 void WMInitializeApplication(const char *applicationName, int *argc, char **argv)
  20 {
  21         int i;
  22
  23         assert(argc != NULL);
  24         assert(argv != NULL);
  25         assert(applicationName != NULL);
  26
  27         setlocale(LC_ALL, "");
  28
  29 #ifdef I18N
  30         if (getenv("NLSPATH"))
  31                 bindtextdomain("WINGs", getenv("NLSPATH"));
  32         else
  33                 bindtextdomain("WINGs", LOCALEDIR);
  34         bind_textdomain_codeset("WINGs", "UTF-8");
  35 #endif
  36
  37         _WINGS_progname = argv[0];
  38
  39         WMApplication.applicationName = wstrdup(applicationName);
  40         WMApplication.argc = *argc;
  41
  42         WMApplication.argv = wmalloc((*argc + 1) * sizeof(char *));
  43         for (i = 0; i < *argc; i++) {
  44                 WMApplication.argv[i] = wstrdup(argv[i]);
  45         }
  46         WMApplication.argv[i] = NULL;
  47
  48         /* initialize notification center */
  49         W_InitNotificationCenter();
  50 }
  51
  52 void WMReleaseApplication(void) {
  53         int i;
  54
  55         /*
  56          * We save the configuration on exit, this used to be handled
  57          * through an 'atexit' registered function but if application
  58          * properly calls WMReleaseApplication then the info to that
  59          * will have been freed by us.
  60          */
  61         w_save_defaults_changes();
  62
  63         W_ReleaseNotificationCenter();
  64
  65         if (WMApplication.applicationName) {
  66                 wfree(WMApplication.applicationName);
  67                 WMApplication.applicationName = NULL;
  68         }
  69
  70         if (WMApplication.argv) {
  71                 for (i = 0; i < WMApplication.argc; i++)
  72                         wfree(WMApplication.argv[i]);
  73
  74                 wfree(WMApplication.argv);
  75                 WMApplication.argv = NULL;
  76         }
  77 }
  78
  79 void WMSetResourcePath(const char *path)
  80 {
  81         if (WMApplication.resourcePath)
  82                 wfree(WMApplication.resourcePath);
  83         WMApplication.resourcePath = wstrdup(path);
  84 }
  85
  86 char *WMGetApplicationName()
  87 {
  88         return WMApplication.applicationName;
  89 }
  90
  91 static char *checkFile(const char *path, const char *folder, const char *ext, const char *resource)
  92 {
  93         char *ret;
  94         int extralen;
  95         size_t slen;
  96
  97         if (!path || !resource)
  98                 return NULL;
  99
 100         extralen = (ext ? strlen(ext) + 1 : 0) + (folder ? strlen(folder) + 1 : 0) + 1;
 101         slen = strlen(path) + strlen(resource) + 1 + extralen;
 102         ret = wmalloc(slen);
 103
 104         if (wstrlcpy(ret, path, slen) >= slen)
 105                 goto error;
 106
 107         if (folder &&
 108                 (wstrlcat(ret, "/", slen) >= slen ||
 109                  wstrlcat(ret, folder, slen) >= slen))
 110                         goto error;
 111
 112         if (ext &&
 113                 (wstrlcat(ret, "/", slen) >= slen ||
 114                  wstrlcat(ret, ext, slen) >= slen))
 115                         goto error;
 116
 117         if (wstrlcat(ret, "/", slen) >= slen ||
 118             wstrlcat(ret, resource, slen) >= slen)
 119                 goto error;
 120
 121         if (access(ret, F_OK) != 0)
 122                 goto error;
 123
 124         return ret;
 125
 126 error:
 127         if (ret)
 128                 wfree(ret);
 129         return NULL;
 130 }
 131
 132 char *WMPathForResourceOfType(const char *resource, const char *ext)
 133 {
 134         char *path, *tmp, *appdir;
 135         int i;
 136         size_t slen;
 137
 138         path = tmp = appdir = NULL;
 139
 140         /*
 141          * Paths are searched in this order:
 142          * - resourcePath/ext
 143          * - dirname(argv[0])/ext
 144          * - GNUSTEP_USER_ROOT/Applications/ApplicationName.app/ext
 145          * - ~/GNUstep/Applications/ApplicationName.app/ext
 146          * - GNUSTEP_LOCAL_ROOT/Applications/ApplicationName.app/ext
 147          * - /usr/local/GNUstep/Applications/ApplicationName.app/ext
 148          * - GNUSTEP_SYSTEM_ROOT/Applications/ApplicationName.app/ext
 149          * - /usr/GNUstep/Applications/ApplicationName.app/ext
 150          */
 151
 152         if (WMApplication.resourcePath) {
 153                 path = checkFile(WMApplication.resourcePath, NULL, ext, resource);
 154                 if (path)
 155                         goto out;
 156         }
 157
 158         if (WMApplication.argv[0]) {
 159                 tmp = wstrdup(WMApplication.argv[0]);
 160                 i = strlen(tmp);
 161                 while (i > 0 && tmp[i] != '/')
 162                         i--;
 163                 tmp[i] = 0;
 164                 if (i > 0) {
 165                         path = checkFile(tmp, NULL, ext, resource);
 166                 } else {
 167                         path = NULL;
 168                 }
 169                 goto out;
 170         }
 171
 172         slen = strlen(WMApplication.applicationName) + sizeof("Applications/.app");
 173         appdir = wmalloc(slen);
 174         if (snprintf(appdir, slen, "Applications/%s.app", WMApplication.applicationName) >= slen)
 175                 goto out;
 176
 177         path = checkFile(getenv("GNUSTEP_USER_ROOT"), appdir, ext, resource);
 178         if (path)
 179                 goto out;
 180
 181         path = checkFile(wusergnusteppath(), appdir, ext, resource);
 182         if (path)
 183                 goto out;
 184
 185         path = checkFile(getenv("GNUSTEP_LOCAL_ROOT"), appdir, ext, resource);
 186         if (path)
 187                 goto out;
 188
 189         path = checkFile("/usr/local/GNUstep", appdir, ext, resource);
 190         if (path)
 191                 goto out;
 192
 193         path = checkFile(getenv("GNUSTEP_SYSTEM_ROOT"), appdir, ext, resource);
 194         if (path)
 195                 goto out;
 196
 197         path = checkFile("/usr/GNUstep", appdir, ext, resource); /* falls through */
 198
 199 out:
 200         if (tmp)
 201                 wfree(tmp);
 202         if (appdir)
 203                 wfree(appdir);
 204
 205         return path;
 206
 207 }