2 * Copyright © 2009 Dan Nicholson
3 * Copyright © 2012 Intel Corporation
4 * Copyright © 2012 Ran Benita <ran234@gmail.com>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
25 * Author: Dan Nicholson <dbn.lists@gmail.com>
26 * Daniel Stone <daniel@fooishbar.org>
27 * Ran Benita <ran234@gmail.com>
30 #include "xkbcomp-priv.h"
33 ComputeEffectiveMask(struct xkb_keymap *keymap, struct xkb_mods *mods)
36 xkb_mod_mask_t vmask = mods->mods >> XKB_NUM_CORE_MODS;
38 /* The effective mask is only real mods for now. */
39 mods->mask = mods->mods & 0xff;
41 for (i = 0; i < XKB_NUM_VIRTUAL_MODS; i++) {
42 if (!(vmask & (1 << i)))
44 mods->mask |= keymap->vmods[i];
49 UpdateActionMods(struct xkb_keymap *keymap, union xkb_action *act,
50 xkb_mod_mask_t modmap)
53 case ACTION_TYPE_MOD_SET:
54 case ACTION_TYPE_MOD_LATCH:
55 case ACTION_TYPE_MOD_LOCK:
56 if (act->mods.flags & ACTION_MODS_LOOKUP_MODMAP)
57 act->mods.mods.mods = modmap;
58 ComputeEffectiveMask(keymap, &act->mods.mods);
65 static const struct xkb_sym_interpret default_interpret = {
66 .sym = XKB_KEY_NoSymbol,
68 .match = MATCH_ANY_OR_NONE,
70 .virtual_mod = XKB_MOD_INVALID,
71 .act = { .type = ACTION_TYPE_NONE },
75 * Find an interpretation which applies to this particular level, either by
76 * finding an exact match for the symbol and modifier combination, or a
77 * generic XKB_KEY_NoSymbol match.
79 static const struct xkb_sym_interpret *
80 FindInterpForKey(struct xkb_keymap *keymap, const struct xkb_key *key,
81 xkb_layout_index_t group, xkb_level_index_t level)
83 struct xkb_sym_interpret *interp;
84 const xkb_keysym_t *syms;
87 num_syms = xkb_keymap_key_get_syms_by_level(keymap, key->keycode, group,
93 * There may be multiple matchings interprets; we should always return
94 * the most specific. Here we rely on compat.c to set up the
95 * sym_interpret array from the most specific to the least specific,
96 * such that when we find a match we return immediately.
98 darray_foreach(interp, keymap->sym_interpret) {
102 if ((num_syms > 1 || interp->sym != syms[0]) &&
103 interp->sym != XKB_KEY_NoSymbol)
106 if (level == 0 || !(interp->match & MATCH_LEVEL_ONE_ONLY))
111 switch (interp->match & MATCH_OP_MASK) {
113 found = !(interp->mods & mods);
115 case MATCH_ANY_OR_NONE:
116 found = (!mods || (interp->mods & mods));
119 found = !!(interp->mods & mods);
122 found = ((interp->mods & mods) == interp->mods);
125 found = (interp->mods == mods);
136 return &default_interpret;
140 ApplyInterpsToKey(struct xkb_keymap *keymap, struct xkb_key *key)
142 xkb_mod_mask_t vmodmask = 0;
143 xkb_layout_index_t group;
144 xkb_level_index_t level;
146 /* If we've been told not to bind interps to this key, then don't. */
147 if (key->explicit & EXPLICIT_INTERP)
150 for (group = 0; group < key->num_groups; group++) {
151 for (level = 0; level < XkbKeyGroupWidth(key, group); level++) {
152 const struct xkb_sym_interpret *interp;
154 interp = FindInterpForKey(keymap, key, group, level);
158 /* Infer default key behaviours from the base level. */
159 if (group == 0 && level == 0)
160 if (!(key->explicit & EXPLICIT_REPEAT) && interp->repeat)
163 if ((group == 0 && level == 0) ||
164 !(interp->match & MATCH_LEVEL_ONE_ONLY)) {
165 if (interp->virtual_mod != XKB_MOD_INVALID)
166 vmodmask |= (1 << interp->virtual_mod);
169 if (interp->act.type != ACTION_TYPE_NONE)
170 key->groups[group].levels[level].action = interp->act;
174 if (!(key->explicit & EXPLICIT_VMODMAP))
175 key->vmodmap = vmodmask;
181 * This collects a bunch of disparate functions which was done in the server
182 * at various points that really should've been done within xkbcomp. Turns out
183 * your actions and types are a lot more useful when any of your modifiers
184 * other than Shift actually do something ...
187 UpdateDerivedKeymapFields(struct xkb_keymap *keymap)
189 xkb_mod_index_t vmod;
194 /* Find all the interprets for the key and bind them to actions,
195 * which will also update the vmodmap. */
196 xkb_foreach_key(key, keymap)
197 if (!ApplyInterpsToKey(keymap, key))
200 /* Update keymap->vmods, the virtual -> real mod mapping. */
201 for (vmod = 0; vmod < XKB_NUM_VIRTUAL_MODS; vmod++)
202 keymap->vmods[vmod] = 0;
204 xkb_foreach_key(key, keymap) {
208 for (vmod = 0; vmod < XKB_NUM_VIRTUAL_MODS; vmod++) {
209 if (!(key->vmodmap & (1 << vmod)))
211 keymap->vmods[vmod] |= key->modmap;
215 /* Now update the level masks for all the types to reflect the vmods. */
216 for (i = 0; i < keymap->num_types; i++) {
217 ComputeEffectiveMask(keymap, &keymap->types[i].mods);
219 for (j = 0; j < keymap->types[i].num_entries; j++) {
220 ComputeEffectiveMask(keymap, &keymap->types[i].map[j].mods);
221 ComputeEffectiveMask(keymap, &keymap->types[i].map[j].preserve);
225 /* Update action modifiers. */
226 xkb_foreach_key(key, keymap)
227 for (i = 0; i < key->num_groups; i++)
228 for (j = 0; j < XkbKeyGroupWidth(key, i); j++)
229 UpdateActionMods(keymap, &key->groups[i].levels[j].action,
232 /* Update vmod -> indicator maps. */
233 for (led = 0; led < XKB_NUM_INDICATORS; led++)
234 ComputeEffectiveMask(keymap, &keymap->indicators[led].mods);
236 /* Find maximum number of groups out of all keys in the keymap. */
237 xkb_foreach_key(key, keymap)
238 keymap->num_groups = MAX(keymap->num_groups, key->num_groups);
243 typedef bool (*compile_file_fn)(XkbFile *file,
244 struct xkb_keymap *keymap,
245 enum merge_mode merge);
247 static const compile_file_fn compile_file_fns[LAST_KEYMAP_FILE_TYPE + 1] = {
248 [FILE_TYPE_KEYCODES] = CompileKeycodes,
249 [FILE_TYPE_TYPES] = CompileKeyTypes,
250 [FILE_TYPE_COMPAT] = CompileCompatMap,
251 [FILE_TYPE_SYMBOLS] = CompileSymbols,
255 CompileKeymap(XkbFile *file, struct xkb_keymap *keymap, enum merge_mode merge)
258 const char *main_name;
259 XkbFile *files[LAST_KEYMAP_FILE_TYPE + 1] = { NULL };
260 enum xkb_file_type type;
261 struct xkb_context *ctx = keymap->ctx;
263 main_name = file->name ? file->name : "(unnamed)";
265 /* Collect section files and check for duplicates. */
266 for (file = (XkbFile *) file->defs; file;
267 file = (XkbFile *) file->common.next) {
268 if (file->file_type < FIRST_KEYMAP_FILE_TYPE ||
269 file->file_type > LAST_KEYMAP_FILE_TYPE) {
270 log_err(ctx, "Cannot define %s in a keymap file\n",
271 xkb_file_type_to_string(file->file_type));
275 if (files[file->file_type]) {
277 "More than one %s section in keymap file; "
278 "All sections after the first ignored\n",
279 xkb_file_type_to_string(file->file_type));
283 if (!file->topName) {
285 file->topName = strdup(main_name);
288 files[file->file_type] = file;
292 * Check that all required section were provided.
293 * Report everything before failing.
296 for (type = FIRST_KEYMAP_FILE_TYPE;
297 type <= LAST_KEYMAP_FILE_TYPE;
299 if (files[type] == NULL) {
300 log_err(ctx, "Required section %s missing from keymap\n",
301 xkb_file_type_to_string(type));
308 /* Compile sections. */
309 for (type = FIRST_KEYMAP_FILE_TYPE;
310 type <= LAST_KEYMAP_FILE_TYPE;
312 log_dbg(ctx, "Compiling %s \"%s\"\n",
313 xkb_file_type_to_string(type), files[type]->topName);
315 ok = compile_file_fns[type](files[type], keymap, merge);
317 log_err(ctx, "Failed to compile %s\n",
318 xkb_file_type_to_string(type));
323 return UpdateDerivedKeymapFields(keymap);