src/keymaps.c

   1 ////////////////////////////////////////////////////////////////////////////////
   2 typedef struct {
   3   KeySym src;
   4   KeySym dst;
   5 } KeyTransDef;
   6
   7
   8 static KeyTransDef *keytrans = NULL;
   9 static int keytrans_size = 0;
  10 static int keytrans_used = 0;
  11
  12
  13 typedef struct {
  14   KeySym key;
  15   uint mask;
  16   int kp;
  17   char *str;
  18 } KeyInfoDef;
  19
  20
  21 static KeyInfoDef *keybinds = NULL;
  22 static int keybinds_size = 0;
  23 static int keybinds_used = 0;
  24
  25 static KeyInfoDef *keymap = NULL;
  26 static int keymap_size = 0;
  27 static int keymap_used = 0;
  28
  29
  30 ////////////////////////////////////////////////////////////////////////////////
  31 static void keytrans_reset (void) {
  32   if (keytrans) free(keytrans);
  33   keytrans = NULL;
  34   keytrans_size = 0;
  35   keytrans_used = 0;
  36 }
  37
  38
  39 static void keytrans_add (const char *src, const char *dst) {
  40   KeySym kssrc = XStringToKeysym(src);
  41   KeySym ksdst = XStringToKeysym(dst);
  42   //
  43   if (kssrc == NoSymbol) die("invalid keysym: '%s'", src);
  44   if (ksdst == NoSymbol) die("invalid keysym: '%s'", dst);
  45   if (kssrc == ksdst) return; // idiot
  46   //
  47   for (int f = 0; f < keytrans_used; ++f) {
  48     if (keytrans[f].src == kssrc) {
  49       // replace
  50       keytrans[f].dst = ksdst;
  51       return;
  52     }
  53   }
  54   //
  55   if (keytrans_used >= keytrans_size) {
  56     int newsize = keytrans_size+64;
  57     KeyTransDef *n = realloc(keytrans, sizeof(KeyTransDef)*newsize);
  58     //
  59     if (n == NULL) die("out of memory");
  60     keytrans_size = newsize;
  61     keytrans = n;
  62   }
  63   keytrans[keytrans_used].src = kssrc;
  64   keytrans[keytrans_used].dst = ksdst;
  65   ++keytrans_used;
  66 }
  67
  68
  69 ////////////////////////////////////////////////////////////////////////////////
  70 static void parsekeyname (const char *str, KeySym *ks, uint *mask, int *kp) {
  71   char *s = alloca(strlen(str)+1);
  72   //
  73   if (s == NULL) die("out of memory");
  74   strcpy(s, str);
  75   *kp = 0;
  76   *ks = NoSymbol;
  77   *mask = XK_NO_MOD;
  78   //
  79   while (*s) {
  80     char *e, oc;
  81     uint mm = 0;
  82     int mod = 1;
  83     //
  84     while (*s && isspace(*s)) ++s;
  85     for (e = s; *e && !isspace(*e) && *e != '+'; ++e) ;
  86     oc = *e; *e = 0;
  87     //
  88     if (strcasecmp(s, "alt") == 0) mm = Mod1Mask;
  89     else if (strcasecmp(s, "win") == 0) mm = Mod4Mask;
  90     else if (strcasecmp(s, "ctrl") == 0) mm = ControlMask;
  91     else if (strcasecmp(s, "shift") == 0) mm = ShiftMask;
  92     else if (strcasecmp(s, "any") == 0) mm = XK_NO_MOD; //!
  93     else if (strcasecmp(s, "kpad") == 0) *kp = 1;
  94     else {
  95       mod = 0;
  96       if ((*ks = XStringToKeysym(s)) == NoSymbol) break;
  97       //fprintf(stderr, "[%s]\n", s);
  98     }
  99     //
 100     *e = oc;
 101     s = e;
 102     while (*s && isspace(*s)) ++s;
 103     if (mod) {
 104       if (*s != '+') { *ks = NoSymbol; break; }
 105       ++s;
 106       if (mm != 0) {
 107         if (mm == XK_NO_MOD) *mask = XK_ANY_MOD;
 108         else if (*mask == XK_NO_MOD) *mask = mm;
 109         else if (*mask != XK_ANY_MOD) *mask |= mm;
 110       }
 111     } else {
 112       if (*s) { *ks = NoSymbol; break; }
 113     }
 114   }
 115   if (*ks == NoSymbol) die("invalid key name: '%s'", str);
 116   //fprintf(stderr, "mask=0x%08x, kp=%d\n", *mask, *kp);
 117 }
 118
 119
 120 ////////////////////////////////////////////////////////////////////////////////
 121 static void keybinds_reset (void) {
 122   if (keybinds) free(keybinds);
 123   keybinds = NULL;
 124   keybinds_size = 0;
 125   keybinds_used = 0;
 126 }
 127
 128
 129 static void keybind_add (const char *key, const char *act) {
 130   KeySym ks;
 131   uint mask;
 132   int kp;
 133   //
 134   parsekeyname(key, &ks, &mask, &kp);
 135   //
 136   for (int f = 0; f < keybinds_used; ++f) {
 137     if (keybinds[f].key == ks && keybinds[f].mask == mask) {
 138       // replace or remove
 139       free(keybinds[f].str);
 140       if (act == NULL || !act[0]) {
 141         // remove
 142         for (int c = f+1; c < keybinds_used; ++c) keybinds[c-1] = keybinds[c];
 143       } else {
 144         // replace
 145         if ((keybinds[f].str = strdup(act)) == NULL) die("out of memory");
 146       }
 147       return;
 148     }
 149   }
 150   //
 151   if (keybinds_used >= keybinds_size) {
 152     int newsize = keybinds_size+64;
 153     KeyInfoDef *n = realloc(keybinds, sizeof(KeyInfoDef)*newsize);
 154     //
 155     if (n == NULL) die("out of memory");
 156     keybinds_size = newsize;
 157     keybinds = n;
 158   }
 159   keybinds[keybinds_used].key = ks;
 160   keybinds[keybinds_used].mask = mask;
 161   keybinds[keybinds_used].kp = 0;
 162   if ((keybinds[keybinds_used].str = strdup(act)) == NULL) die("out of memory");
 163   ++keybinds_used;
 164 }
 165
 166
 167 ////////////////////////////////////////////////////////////////////////////////
 168 static void keymap_reset (void) {
 169   if (keymap) free(keymap);
 170   keymap = NULL;
 171   keymap_size = 0;
 172   keymap_used = 0;
 173 }
 174
 175
 176 static void keymap_add (const char *key, const char *act) {
 177   KeySym ks;
 178   uint mask;
 179   int kp;
 180   //
 181   parsekeyname(key, &ks, &mask, &kp);
 182   //
 183   for (int f = 0; f < keymap_used; ++f) {
 184     if (keymap[f].key == ks && keymap[f].mask == mask && keymap[f].kp == kp) {
 185       // replace or remove
 186       free(keymap[f].str);
 187       if (act == NULL) {
 188         // remove
 189         for (int c = f+1; c < keymap_used; ++c) keymap[c-1] = keymap[c];
 190       } else {
 191         // replace
 192         if ((keymap[f].str = strdup(act)) == NULL) die("out of memory");
 193       }
 194       return;
 195     }
 196   }
 197   //
 198   if (keymap_used >= keymap_size) {
 199     int newsize = keymap_size+128;
 200     KeyInfoDef *n = realloc(keymap, sizeof(KeyInfoDef)*newsize);
 201     //
 202     if (n == NULL) die("out of memory");
 203     keymap_size = newsize;
 204     keymap = n;
 205   }
 206   keymap[keymap_used].key = ks;
 207   keymap[keymap_used].mask = mask;
 208   keymap[keymap_used].kp = kp;
 209   if ((keymap[keymap_used].str = strdup(act)) == NULL) die("out of memory");
 210   ++keymap_used;
 211 }