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)
35 const struct xkb_vmod *vmod;
37 xkb_mod_mask_t vmask = mods->mods >> XKB_NUM_CORE_MODS;
39 /* The effective mask is only real mods for now. */
40 mods->mask = mods->mods & 0xff;
42 darray_enumerate(i, vmod, keymap->vmods)
44 mods->mask |= vmod->mapping;
48 UpdateActionMods(struct xkb_keymap *keymap, union xkb_action *act,
49 xkb_mod_mask_t modmap)
52 case ACTION_TYPE_MOD_SET:
53 case ACTION_TYPE_MOD_LATCH:
54 case ACTION_TYPE_MOD_LOCK:
55 if (act->mods.flags & ACTION_MODS_LOOKUP_MODMAP)
56 act->mods.mods.mods = modmap;
57 ComputeEffectiveMask(keymap, &act->mods.mods);
64 static const struct xkb_sym_interpret default_interpret = {
65 .sym = XKB_KEY_NoSymbol,
67 .match = MATCH_ANY_OR_NONE,
69 .virtual_mod = XKB_MOD_INVALID,
70 .act = { .type = ACTION_TYPE_NONE },
74 * Find an interpretation which applies to this particular level, either by
75 * finding an exact match for the symbol and modifier combination, or a
76 * generic XKB_KEY_NoSymbol match.
78 static const struct xkb_sym_interpret *
79 FindInterpForKey(struct xkb_keymap *keymap, const struct xkb_key *key,
80 xkb_layout_index_t group, xkb_level_index_t level)
82 struct xkb_sym_interpret *interp;
83 const xkb_keysym_t *syms;
86 num_syms = xkb_keymap_key_get_syms_by_level(keymap, key->keycode, group,
92 * There may be multiple matchings interprets; we should always return
93 * the most specific. Here we rely on compat.c to set up the
94 * sym_interpret array from the most specific to the least specific,
95 * such that when we find a match we return immediately.
97 darray_foreach(interp, keymap->sym_interpret) {
101 if ((num_syms > 1 || interp->sym != syms[0]) &&
102 interp->sym != XKB_KEY_NoSymbol)
105 if (level == 0 || !(interp->match & MATCH_LEVEL_ONE_ONLY))
110 switch (interp->match & MATCH_OP_MASK) {
112 found = !(interp->mods & mods);
114 case MATCH_ANY_OR_NONE:
115 found = (!mods || (interp->mods & mods));
118 found = !!(interp->mods & mods);
121 found = ((interp->mods & mods) == interp->mods);
124 found = (interp->mods == mods);
135 return &default_interpret;
139 ApplyInterpsToKey(struct xkb_keymap *keymap, struct xkb_key *key)
141 xkb_mod_mask_t vmodmask = 0;
142 xkb_layout_index_t group;
143 xkb_level_index_t level;
145 /* If we've been told not to bind interps to this key, then don't. */
146 if (key->explicit & EXPLICIT_INTERP)
149 for (group = 0; group < key->num_groups; group++) {
150 for (level = 0; level < XkbKeyGroupWidth(key, group); level++) {
151 const struct xkb_sym_interpret *interp;
153 interp = FindInterpForKey(keymap, key, group, level);
157 /* Infer default key behaviours from the base level. */
158 if (group == 0 && level == 0)
159 if (!(key->explicit & EXPLICIT_REPEAT) && interp->repeat)
162 if ((group == 0 && level == 0) ||
163 !(interp->match & MATCH_LEVEL_ONE_ONLY)) {
164 if (interp->virtual_mod != XKB_MOD_INVALID)
165 vmodmask |= (1 << interp->virtual_mod);
168 if (interp->act.type != ACTION_TYPE_NONE)
169 key->groups[group].levels[level].action = interp->act;
173 if (!(key->explicit & EXPLICIT_VMODMAP))
174 key->vmodmap = vmodmask;
180 * This collects a bunch of disparate functions which was done in the server
181 * at various points that really should've been done within xkbcomp. Turns out
182 * your actions and types are a lot more useful when any of your modifiers
183 * other than Shift actually do something ...
186 UpdateDerivedKeymapFields(struct xkb_keymap *keymap)
188 struct xkb_vmod *vmod;
193 /* Find all the interprets for the key and bind them to actions,
194 * which will also update the vmodmap. */
195 xkb_foreach_key(key, keymap)
196 if (!ApplyInterpsToKey(keymap, key))
199 /* Update keymap->vmods, the virtual -> real mod mapping. */
200 xkb_foreach_key(key, keymap)
201 darray_enumerate(i, vmod, keymap->vmods)
202 if (key->vmodmap & (1 << i))
203 vmod->mapping |= key->modmap;
205 /* Now update the level masks for all the types to reflect the vmods. */
206 for (i = 0; i < keymap->num_types; i++) {
207 ComputeEffectiveMask(keymap, &keymap->types[i].mods);
209 for (j = 0; j < keymap->types[i].num_entries; j++) {
210 ComputeEffectiveMask(keymap, &keymap->types[i].map[j].mods);
211 ComputeEffectiveMask(keymap, &keymap->types[i].map[j].preserve);
215 /* Update action modifiers. */
216 xkb_foreach_key(key, keymap)
217 for (i = 0; i < key->num_groups; i++)
218 for (j = 0; j < XkbKeyGroupWidth(key, i); j++)
219 UpdateActionMods(keymap, &key->groups[i].levels[j].action,
222 /* Update vmod -> indicator maps. */
223 for (led = 0; led < XKB_NUM_INDICATORS; led++)
224 ComputeEffectiveMask(keymap, &keymap->indicators[led].mods);
226 /* Find maximum number of groups out of all keys in the keymap. */
227 xkb_foreach_key(key, keymap)
228 keymap->num_groups = MAX(keymap->num_groups, key->num_groups);
233 typedef bool (*compile_file_fn)(XkbFile *file,
234 struct xkb_keymap *keymap,
235 enum merge_mode merge);
237 static const compile_file_fn compile_file_fns[LAST_KEYMAP_FILE_TYPE + 1] = {
238 [FILE_TYPE_KEYCODES] = CompileKeycodes,
239 [FILE_TYPE_TYPES] = CompileKeyTypes,
240 [FILE_TYPE_COMPAT] = CompileCompatMap,
241 [FILE_TYPE_SYMBOLS] = CompileSymbols,
245 CompileKeymap(XkbFile *file, struct xkb_keymap *keymap, enum merge_mode merge)
248 const char *main_name;
249 XkbFile *files[LAST_KEYMAP_FILE_TYPE + 1] = { NULL };
250 enum xkb_file_type type;
251 struct xkb_context *ctx = keymap->ctx;
253 main_name = file->name ? file->name : "(unnamed)";
255 /* Collect section files and check for duplicates. */
256 for (file = (XkbFile *) file->defs; file;
257 file = (XkbFile *) file->common.next) {
258 if (file->file_type < FIRST_KEYMAP_FILE_TYPE ||
259 file->file_type > LAST_KEYMAP_FILE_TYPE) {
260 log_err(ctx, "Cannot define %s in a keymap file\n",
261 xkb_file_type_to_string(file->file_type));
265 if (files[file->file_type]) {
267 "More than one %s section in keymap file; "
268 "All sections after the first ignored\n",
269 xkb_file_type_to_string(file->file_type));
273 if (!file->topName) {
275 file->topName = strdup(main_name);
278 files[file->file_type] = file;
282 * Check that all required section were provided.
283 * Report everything before failing.
286 for (type = FIRST_KEYMAP_FILE_TYPE;
287 type <= LAST_KEYMAP_FILE_TYPE;
289 if (files[type] == NULL) {
290 log_err(ctx, "Required section %s missing from keymap\n",
291 xkb_file_type_to_string(type));
298 /* Compile sections. */
299 for (type = FIRST_KEYMAP_FILE_TYPE;
300 type <= LAST_KEYMAP_FILE_TYPE;
302 log_dbg(ctx, "Compiling %s \"%s\"\n",
303 xkb_file_type_to_string(type), files[type]->topName);
305 ok = compile_file_fns[type](files[type], keymap, merge);
307 log_err(ctx, "Failed to compile %s\n",
308 xkb_file_type_to_string(type));
313 return UpdateDerivedKeymapFields(keymap);