12 ////////////////////////////////////////////////////////////////////////////////
13 // default keycode translation map and keyevent handlers
15 keysym_t keyboard_manager::stock_keymap[] = {
17 /* keysym, state, range, handler, str */
18 //{XK_ISO_Left_Tab, 0, 1, keysym_t::NORMAL, "\033[Z"},
19 //{ 'a', 0, 26, keysym_t::RANGE_META8, "a" "%c"},
20 //{ 'a', ControlMask, 26, keysym_t::RANGE_META8, "
\ 1" "%c"},
21 //{ XK_Left, 0, 4, keysym_t::LIST, ".\033[.DACB."},
22 //{ XK_Left, ShiftMask, 4, keysym_t::LIST, ".\033[.dacb."},
23 //{ XK_Left, ControlMask, 4, keysym_t::LIST, ".\033O.dacb."},
24 //{ XK_Tab, ControlMask, 1, keysym_t::NORMAL, "\033<C-Tab>"},
25 //{ XK_apostrophe, ControlMask, 1, keysym_t::NORMAL, "\033<C-'>"},
26 //{ XK_slash, ControlMask, 1, keysym_t::NORMAL, "\033<C-/>"},
27 //{ XK_semicolon, ControlMask, 1, keysym_t::NORMAL, "\033<C-;>"},
28 //{ XK_grave, ControlMask, 1, keysym_t::NORMAL, "\033<C-`>"},
29 //{ XK_comma, ControlMask, 1, keysym_t::NORMAL, "\033<C-\054>"},
30 //{ XK_Return, ControlMask, 1, keysym_t::NORMAL, "\033<C-Return>"},
31 //{ XK_Return, ShiftMask, 1, keysym_t::NORMAL, "\033<S-Return>"},
32 //{ ' ', ShiftMask, 1, keysym_t::NORMAL, "\033<S-Space>"},
33 //{ '.', ControlMask, 1, keysym_t::NORMAL, "\033<C-.>"},
34 //{ '0', ControlMask, 10, keysym_t::RANGE, "0" "\033<C-%c>"},
35 //{ '0', MetaMask|ControlMask, 10, keysym_t::RANGE, "0" "\033<M-C-%c>"},
36 //{ 'a', MetaMask|ControlMask, 26, keysym_t::RANGE, "a" "\033<M-C-%c>"},
41 output_string (rxvt_term *rt, const char *str)
43 if (strncmp (str, "command:", 8) == 0)
44 rt->cmd_write ((unsigned char *)str + 8, strlen (str) - 8);
46 rt->tt_write ((unsigned char *)str, strlen (str));
50 output_string_meta8 (rxvt_term *rt, unsigned int state, char *buf, int buflen)
52 if (state & rt->ModMetaMask)
55 if (rt->meta_char == 0x80) /* set 8-bit on */
57 for (char *ch = buf; ch < buf + buflen; ch++)
60 else if (rt->meta_char == C0_ESC) /* escape prefix */
63 const unsigned char ch = C0_ESC;
64 rt->tt_write (&ch, 1);
68 rt->tt_write ((unsigned char *) buf, buflen);
72 format_keyrange_string (const char *str, int keysym_offset, char *buf, int bufsize)
74 size_t len = snprintf (buf, bufsize, str + 1, keysym_offset + str [0]);
76 if (len >= (size_t)bufsize)
78 rxvt_warn ("format_keyrange_string: formatting failed, ignoring key.\n");
85 ////////////////////////////////////////////////////////////////////////////////
86 // return: #bits of '1'
87 #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 3)
88 # define bitcount(n) (__extension__ ({ uint32_t n__ = (n); __builtin_popcount (n); }))
95 for (i = 0; n; ++i, n &= n - 1)
102 // return: priority_of_a - priority_of_b
104 compare_priority (keysym_t *a, keysym_t *b)
106 // (the more '1's in state; the less range): the greater priority
107 int ca = bitcount (a->state /* & OtherModMask */);
108 int cb = bitcount (b->state /* & OtherModMask */);
112 //else if (a->state != b->state) // this behavior is to be disscussed
113 // return b->state - a->state;
115 return b->range - a->range;
118 ////////////////////////////////////////////////////////////////////////////////
119 keyboard_manager::keyboard_manager ()
121 keymap.reserve (256);
122 hash [0] = 1; // hash[0] != 0 indicates uninitialized data
125 keyboard_manager::~keyboard_manager ()
131 keyboard_manager::clear ()
136 for (unsigned int i = 0; i < user_translations.size (); ++i)
138 free ((void *)user_translations [i]);
139 user_translations [i] = 0;
142 for (unsigned int i = 0; i < user_keymap.size (); ++i)
144 delete user_keymap [i];
148 user_keymap.clear ();
149 user_translations.clear ();
152 // a wrapper for register_keymap,
153 // so that outside codes don't have to know so much details.
155 // the string 'trans' is copied to an internal managed buffer,
156 // so the caller can free memory of 'trans' at any time.
158 keyboard_manager::register_user_translation (KeySym keysym, unsigned int state, const char *trans)
160 keysym_t *key = new keysym_t;
161 wchar_t *wc = rxvt_mbstowcs (trans);
162 const char *translation = rxvt_wcstoutf8 (wc);
165 if (key && translation)
167 key->keysym = keysym;
170 key->str = translation;
171 key->type = keysym_t::NORMAL;
173 if (strncmp (translation, "list", 4) == 0 && translation [4])
175 char *middle = strchr (translation + 5, translation [4]);
176 char *suffix = strrchr (translation + 5, translation [4]);
178 if (suffix && middle && suffix > middle + 1)
180 key->type = keysym_t::LIST;
181 key->range = suffix - middle - 1;
183 strcpy (translation, translation + 4);
186 rxvt_warn ("cannot parse list-type keysym '%s', treating as normal keysym.\n", translation);
189 user_keymap.push_back (key);
190 user_translations.push_back (translation);
191 register_keymap (key);
196 free ((void *)translation);
197 rxvt_fatal ("out of memory, aborting.\n");
202 keyboard_manager::register_keymap (keysym_t *key)
204 if (keymap.size () == keymap.capacity ())
205 keymap.reserve (keymap.size () * 2);
207 keymap.push_back (key);
212 keyboard_manager::register_done ()
215 int n = sizeof (stock_keymap) / sizeof (keysym_t);
217 //TODO: shield against repeated calls and empty keymap
218 //if (keymap.back () != &stock_keymap[n - 1])
219 for (int i = 0; i < n; ++i)
220 register_keymap (&stock_keymap[i]);
223 purge_duplicate_keymap ();
229 keyboard_manager::dispatch (rxvt_term *term, KeySym keysym, unsigned int state)
231 assert (hash[0] == 0 && "register_done() need to be called");
233 if (state & term->ModMetaMask) state |= MetaMask;
234 if (state & term->ModNumLockMask) state |= NumLockMask;
235 if (state & term->ModLevel3Mask) state |= Level3Mask;
237 if (!!(term->priv_modes & PrivMode_aplKP) != !!(state & ShiftMask))
238 state |= AppKeypadMask;
240 int index = find_keysym (keysym, state);
244 const keysym_t &key = *keymap [index];
246 int keysym_offset = keysym - key.keysym;
248 wchar_t *wc = rxvt_utf8towcs (key.str);
249 char *str = rxvt_wcstombs (wc);
250 // TODO: do (some) translations, unescaping etc, here (allow \u escape etc.)
255 case keysym_t::NORMAL:
256 output_string (term, str);
259 case keysym_t::RANGE:
261 char buf[STRING_MAX];
263 if (format_keyrange_string (str, keysym_offset, buf, sizeof (buf)) > 0)
264 output_string (term, buf);
268 case keysym_t::RANGE_META8:
271 char buf[STRING_MAX];
273 len = format_keyrange_string (str, keysym_offset, buf, sizeof (buf));
275 output_string_meta8 (term, state, buf, len);
281 char buf[STRING_MAX];
283 char *prefix, *middle, *suffix;
286 middle = strchr (prefix + 1, *prefix);
287 suffix = strrchr (middle + 1, *prefix);
289 memcpy (buf, prefix + 1, middle - prefix - 1);
290 buf [middle - prefix - 1] = middle [keysym_offset + 1];
291 strcpy (buf + (middle - prefix), suffix + 1);
293 output_string (term, buf);
306 // purge duplicate keymap entries
307 void keyboard_manager::purge_duplicate_keymap ()
309 for (unsigned int i = 0; i < keymap.size (); ++i)
311 for (unsigned int j = 0; j < i; ++j)
313 if (keymap [i] == keymap [j])
315 while (keymap [i] == keymap.back ())
318 if (i < keymap.size ())
320 keymap[i] = keymap.back ();
331 keyboard_manager::setup_hash ()
333 unsigned int i, index, hashkey;
334 vector <keysym_t *> sorted_keymap;
335 uint16_t hash_budget_size[KEYSYM_HASH_BUDGETS]; // size of each budget
336 uint16_t hash_budget_counter[KEYSYM_HASH_BUDGETS]; // #elements in each budget
338 memset (hash_budget_size, 0, sizeof (hash_budget_size));
339 memset (hash_budget_counter, 0, sizeof (hash_budget_counter));
341 // determine hash bucket size
342 for (i = 0; i < keymap.size (); ++i)
343 for (int j = min (keymap [i]->range, KEYSYM_HASH_BUDGETS) - 1; j >= 0; --j)
345 hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK;
346 ++hash_budget_size [hashkey];
349 // now we know the size of each budget
350 // compute the index of each budget
352 for (index = 0, i = 1; i < KEYSYM_HASH_BUDGETS; ++i)
354 index += hash_budget_size [i - 1];
358 // and allocate just enough space
359 sorted_keymap.insert (sorted_keymap.begin (), index + hash_budget_size [i - 1], 0);
361 // fill in sorted_keymap
362 // it is sorted in each budget
363 for (i = 0; i < keymap.size (); ++i)
364 for (int j = min (keymap [i]->range, KEYSYM_HASH_BUDGETS) - 1; j >= 0; --j)
366 hashkey = (keymap [i]->keysym + j) & KEYSYM_HASH_MASK;
368 index = hash [hashkey] + hash_budget_counter [hashkey];
370 while (index > hash [hashkey]
371 && compare_priority (keymap [i], sorted_keymap [index - 1]) > 0)
373 sorted_keymap [index] = sorted_keymap [index - 1];
377 sorted_keymap [index] = keymap [i];
378 ++hash_budget_counter [hashkey];
381 keymap.swap (sorted_keymap);
383 #if defined (DEBUG_STRICT) || defined (DEBUG_KEYBOARD)
384 // check for invariants
385 for (i = 0; i < KEYSYM_HASH_BUDGETS; ++i)
388 for (int j = 0; j < hash_budget_size [i]; ++j)
390 if (keymap [index + j]->range == 1)
391 assert (i == (keymap [index + j]->keysym & KEYSYM_HASH_MASK));
394 assert (compare_priority (keymap [index + j - 1],
395 keymap [index + j]) >= 0);
399 // this should be able to detect most possible bugs
400 for (i = 0; i < sorted_keymap.size (); ++i)
402 keysym_t *a = sorted_keymap[i];
403 for (int j = 0; j < a->range; ++j)
405 int index = find_keysym (a->keysym + j, a->state);
408 keysym_t *b = keymap [index];
409 assert (i == (signed) index || // the normally expected result
410 (a->keysym + j) >= b->keysym && (a->keysym + j) <= (b->keysym + b->range) && compare_priority (a, b) <= 0); // is effectively the same or a closer match
417 keyboard_manager::find_keysym (KeySym keysym, unsigned int state)
419 int hashkey = keysym & KEYSYM_HASH_MASK;
420 unsigned int index = hash [hashkey];
421 unsigned int end = hashkey < KEYSYM_HASH_BUDGETS - 1
425 for (; index < end; ++index)
427 keysym_t *key = keymap [index];
429 if (key->keysym <= keysym && keysym < key->keysym + key->range
430 // match only the specified bits in state and ignore others
431 && (key->state & state) == key->state)
438 #endif /* KEYSYM_RESOURCE */