openbox/themerc.c

   1 #include <glib.h>
   2 #ifdef HAVE_STRING_H
   3 #  include <string.h>
   4 #endif
   5
   6 char *themerc_engine;
   7 char *themerc_theme;
   8 char *themerc_font;
   9 char *themerc_titlebar_layout;
  10
  11 GError *error;
  12
  13 static void parse(char *path, int fd)
  14 {
  15     GScanner *scanner;
  16
  17     scanner = g_scanner_new(NULL);
  18     g_scanner_input_file(scanner, fd);
  19
  20     while (g_scanner_get_next_token(scanner) != G_TOKEN_EOF) {
  21         char *name, *val;
  22
  23         if (scanner->token != G_TOKEN_IDENTIFIER) {
  24             g_scanner_unexp_token(scanner, scanner->token, NULL, NULL, NULL,
  25                                   NULL, TRUE);
  26             return;
  27         }
  28         name = g_strdup(scanner->value.v_identifier);
  29
  30         g_scanner_get_next_token(scanner);
  31         if (scanner->token != G_TOKEN_EQUAL_SIGN) {
  32             g_scanner_unexp_token(scanner, scanner->token, NULL, NULL, NULL,
  33                                   NULL, TRUE);
  34             g_free(name);
  35             return;
  36         }
  37
  38         g_scanner_get_next_token(scanner);
  39         if (scanner->token == G_TOKEN_STRING) {
  40             val = g_strdup(scanner->value.v_identifier);
  41
  42             if (!g_ascii_strcasecmp(name, "engine")) {
  43                 if (themerc_engine != NULL) {
  44                     g_warning("%s:%d: '%s' already defined", path,
  45                               scanner->line, name);
  46                     g_free(name);
  47                     g_free(val);
  48                 } else
  49                     themerc_engine = val;
  50             } else if (!g_ascii_strcasecmp(name, "theme")) {
  51                 if (themerc_theme != NULL) {
  52                     g_warning("%s:%d: '%s' already defined", path,
  53                               scanner->line, name);
  54                     g_free(name);
  55                     g_free(val);
  56                 } else
  57                     themerc_theme = val;
  58             } else if (!g_ascii_strcasecmp(name, "font")) {
  59                 if (themerc_font != NULL) {
  60                     g_warning("%s:%d: '%s' already defined", path,
  61                               scanner->line, name);
  62                     g_free(name);
  63                     g_free(val);
  64                 } else
  65                     themerc_font = val;
  66             } else if (!g_ascii_strcasecmp(name, "titlebarlayout")) {
  67                 if (themerc_titlebar_layout != NULL) {
  68                     g_warning("%s:%d: '%s' already defined", path,
  69                               scanner->line, name);
  70                     g_free(name);
  71                     g_free(val);
  72                 } else {
  73                     char *lowval = g_ascii_strup(val, -1);
  74                     int i, len = strlen(lowval);
  75                     g_free(val);
  76                     for (i = 0; i < len; ++i) {
  77                         gboolean valid = FALSE;
  78                         switch(lowval[i]) {
  79                         case 'I':
  80                         case 'L':
  81                         case 'M':
  82                         case 'C':
  83                         case 'N':
  84                         case 'D':
  85                             valid = TRUE;
  86                         }
  87                         if (!valid) {
  88                             g_warning("%s:%d: invalid titlebarlayout element "
  89                                       "'%c'", path, scanner->line, lowval[i]);
  90                             break;
  91                         }
  92                     }
  93                     if (i == len)
  94                         themerc_titlebar_layout = lowval;
  95                     else {
  96                         g_free(name);
  97                         g_free(val);
  98                     }
  99                 }
 100             } else {
 101                 g_warning("%s:%d: invalid option '%s'", path,
 102                           scanner->line, name);
 103                 g_free(name);
 104                 g_free(val);
 105             }
 106         } else {
 107             g_scanner_unexp_token(scanner, scanner->token, NULL, NULL, NULL,
 108                                   NULL, TRUE);
 109             g_free(name);
 110             return;
 111         }
 112     }
 113 }
 114
 115 void themerc_startup()
 116 {
 117     GIOChannel *chan = NULL;
 118     char *path = NULL;
 119
 120     /* defaults */
 121     themerc_engine = NULL;
 122     themerc_theme = NULL;
 123     themerc_font = NULL;
 124     themerc_titlebar_layout = NULL;
 125
 126     path = g_build_filename(g_get_home_dir(), ".openbox", "themerc", NULL);
 127     error = NULL;
 128     chan = g_io_channel_new_file(path, "r", &error);
 129
 130     if (chan == NULL) {
 131         g_free(path);
 132         path = g_build_filename(THEMERCDIR, "themerc", NULL);
 133         error = NULL;
 134         chan = g_io_channel_new_file(path, "r", &error);
 135     }
 136
 137     if (chan != NULL) {
 138         parse(path, g_io_channel_unix_get_fd(chan));
 139         g_free(path);
 140         g_io_channel_close(chan);
 141     }
 142
 143     /* non-NULL defaults */
 144     if (themerc_titlebar_layout == NULL)
 145         themerc_titlebar_layout = g_strdup("NDLIMC");
 146     if (themerc_font == NULL)
 147         themerc_font = g_strdup("sans-8");
 148 }
 149
 150 void themerc_shutdown()
 151 {
 152     if (themerc_engine != NULL) g_free(themerc_engine);
 153     if (themerc_theme != NULL) g_free(themerc_theme);
 154     if (themerc_font != NULL) g_free(themerc_font);
 155     if (themerc_titlebar_layout != NULL) g_free(themerc_titlebar_layout);
 156 }