1 /************************************************************
2 * Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
4 * Permission to use, copy, modify, and distribute this
5 * software and its documentation for any purpose and without
6 * fee is hereby granted, provided that the above copyright
7 * notice appear in all copies and that both that copyright
8 * notice and this permission notice appear in supporting
9 * documentation, and that the name of Silicon Graphics not be
10 * used in advertising or publicity pertaining to distribution
11 * of the software without specific prior written permission.
12 * Silicon Graphics makes no representation about the suitability
13 * of this software for any purpose. It is provided "as is"
14 * without any express or implied warranty.
16 * SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
17 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
18 * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
19 * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
20 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
21 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
22 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
23 * THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 ********************************************************/
28 * Copyright © 2012 Intel Corporation
29 * Copyright © 2012 Ran Benita <ran234@gmail.com>
31 * Permission is hereby granted, free of charge, to any person obtaining a
32 * copy of this software and associated documentation files (the "Software"),
33 * to deal in the Software without restriction, including without limitation
34 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
35 * and/or sell copies of the Software, and to permit persons to whom the
36 * Software is furnished to do so, subject to the following conditions:
38 * The above copyright notice and this permission notice (including the next
39 * paragraph) shall be included in all copies or substantial portions of the
42 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
43 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
44 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
45 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
46 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
47 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
48 * DEALINGS IN THE SOFTWARE.
50 * Author: Daniel Stone <daniel@fooishbar.org>
51 * Ran Benita <ran234@gmail.com>
54 #include "xkbcomp-priv.h"
59 static const ExprBoolean constTrue = {
61 .common = { .type = STMT_EXPR, .next = NULL },
63 .value_type = EXPR_TYPE_BOOLEAN,
68 static const ExprBoolean constFalse = {
70 .common = { .type = STMT_EXPR, .next = NULL },
72 .value_type = EXPR_TYPE_BOOLEAN,
78 ACTION_FIELD_CLEAR_LOCKS,
79 ACTION_FIELD_LATCH_TO_LOCK,
80 ACTION_FIELD_GEN_KEY_EVENT,
84 ACTION_FIELD_INCREMENT,
85 ACTION_FIELD_MODIFIERS,
92 ACTION_FIELD_CONTROLS,
100 ACTION_FIELD_MODS_TO_CLEAR,
109 info = calloc(1, sizeof(*info));
113 for (type = 0; type < _ACTION_TYPE_NUM_ENTRIES; type++)
114 info->actions[type].type = type;
116 /* Apply some "factory defaults". */
118 /* Increment default button. */
119 info->actions[ACTION_TYPE_PTR_DEFAULT].dflt.flags = 0;
120 info->actions[ACTION_TYPE_PTR_DEFAULT].dflt.value = 1;
126 FreeActionsInfo(ActionsInfo *info)
131 static const LookupEntry fieldStrings[] = {
132 { "clearLocks", ACTION_FIELD_CLEAR_LOCKS },
133 { "latchToLock", ACTION_FIELD_LATCH_TO_LOCK },
134 { "genKeyEvent", ACTION_FIELD_GEN_KEY_EVENT },
135 { "generateKeyEvent", ACTION_FIELD_GEN_KEY_EVENT },
136 { "report", ACTION_FIELD_REPORT },
137 { "default", ACTION_FIELD_DEFAULT },
138 { "affect", ACTION_FIELD_AFFECT },
139 { "increment", ACTION_FIELD_INCREMENT },
140 { "modifiers", ACTION_FIELD_MODIFIERS },
141 { "mods", ACTION_FIELD_MODIFIERS },
142 { "group", ACTION_FIELD_GROUP },
143 { "x", ACTION_FIELD_X },
144 { "y", ACTION_FIELD_Y },
145 { "accel", ACTION_FIELD_ACCEL },
146 { "accelerate", ACTION_FIELD_ACCEL },
147 { "repeat", ACTION_FIELD_ACCEL },
148 { "button", ACTION_FIELD_BUTTON },
149 { "value", ACTION_FIELD_VALUE },
150 { "controls", ACTION_FIELD_CONTROLS },
151 { "ctrls", ACTION_FIELD_CONTROLS },
152 { "type", ACTION_FIELD_TYPE },
153 { "count", ACTION_FIELD_COUNT },
154 { "screen", ACTION_FIELD_SCREEN },
155 { "same", ACTION_FIELD_SAME },
156 { "sameServer", ACTION_FIELD_SAME },
157 { "data", ACTION_FIELD_DATA },
158 { "device", ACTION_FIELD_DEVICE },
159 { "dev", ACTION_FIELD_DEVICE },
160 { "key", ACTION_FIELD_KEYCODE },
161 { "keycode", ACTION_FIELD_KEYCODE },
162 { "kc", ACTION_FIELD_KEYCODE },
163 { "clearmods", ACTION_FIELD_MODS_TO_CLEAR },
164 { "clearmodifiers", ACTION_FIELD_MODS_TO_CLEAR },
169 stringToAction(const char *str, unsigned *type_rtrn)
171 return LookupString(actionTypeNames, str, type_rtrn);
175 stringToField(const char *str, enum action_field *field_rtrn)
177 return LookupString(fieldStrings, str, field_rtrn);
181 fieldText(enum action_field field)
183 return LookupValue(fieldStrings, field);
186 /***====================================================================***/
189 ReportMismatch(struct xkb_keymap *keymap, enum xkb_action_type action,
190 enum action_field field, const char *type)
193 "Value of %s field must be of type %s; "
194 "Action %s definition ignored\n",
195 fieldText(field), type, ActionTypeText(action));
200 ReportIllegal(struct xkb_keymap *keymap, enum xkb_action_type action,
201 enum action_field field)
204 "Field %s is not defined for an action of type %s; "
205 "Action definition ignored\n",
206 fieldText(field), ActionTypeText(action));
211 ReportActionNotArray(struct xkb_keymap *keymap, enum xkb_action_type action,
212 enum action_field field)
215 "The %s field in the %s action is not an array; "
216 "Action definition ignored\n",
217 fieldText(field), ActionTypeText(action));
222 HandleNoAction(struct xkb_keymap *keymap, union xkb_action *action,
223 enum action_field field, const ExprDef *array_ndx,
224 const ExprDef *value)
231 CheckLatchLockFlags(struct xkb_keymap *keymap, enum xkb_action_type action,
232 enum action_field field, const ExprDef *value,
233 enum xkb_action_flags *flags_inout)
235 enum xkb_action_flags tmp;
238 if (field == ACTION_FIELD_CLEAR_LOCKS)
239 tmp = ACTION_LOCK_CLEAR;
240 else if (field == ACTION_FIELD_LATCH_TO_LOCK)
241 tmp = ACTION_LATCH_TO_LOCK;
243 return false; /* WSGO! */
245 if (!ExprResolveBoolean(keymap->ctx, value, &result))
246 return ReportMismatch(keymap, action, field, "boolean");
251 *flags_inout &= ~tmp;
257 CheckModifierField(struct xkb_keymap *keymap, enum xkb_action_type action,
258 const ExprDef *value, enum xkb_action_flags *flags_inout,
259 xkb_mod_mask_t *mods_rtrn)
261 if (value->expr.op == EXPR_IDENT) {
263 valStr = xkb_atom_text(keymap->ctx, value->ident.ident);
264 if (valStr && (istreq(valStr, "usemodmapmods") ||
265 istreq(valStr, "modmapmods"))) {
268 *flags_inout |= ACTION_MODS_LOOKUP_MODMAP;
273 if (!ExprResolveModMask(keymap, value, MOD_BOTH, mods_rtrn))
274 return ReportMismatch(keymap, action,
275 ACTION_FIELD_MODIFIERS, "modifier mask");
277 *flags_inout &= ~ACTION_MODS_LOOKUP_MODMAP;
282 HandleSetLatchMods(struct xkb_keymap *keymap, union xkb_action *action,
283 enum action_field field, const ExprDef *array_ndx,
284 const ExprDef *value)
286 struct xkb_mod_action *act = &action->mods;
290 case ACTION_FIELD_CLEAR_LOCKS:
291 case ACTION_FIELD_LATCH_TO_LOCK:
292 case ACTION_FIELD_MODIFIERS:
293 return ReportActionNotArray(keymap, action->type, field);
300 case ACTION_FIELD_CLEAR_LOCKS:
301 case ACTION_FIELD_LATCH_TO_LOCK:
302 return CheckLatchLockFlags(keymap, action->type, field, value,
304 case ACTION_FIELD_MODIFIERS:
305 return CheckModifierField(keymap, action->type, value,
306 &act->flags, &act->mods.mods);
311 return ReportIllegal(keymap, action->type, field);
314 static const LookupEntry lockWhich[] = {
316 { "lock", ACTION_LOCK_NO_UNLOCK },
317 { "neither", (ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK) },
318 { "unlock", ACTION_LOCK_NO_LOCK },
323 CheckAffectField(struct xkb_keymap *keymap, enum xkb_action_type action,
324 const ExprDef *value, enum xkb_action_flags *flags_inout)
326 enum xkb_action_flags flags;
328 if (!ExprResolveEnum(keymap->ctx, value, &flags, lockWhich))
329 return ReportMismatch(keymap, action, ACTION_FIELD_AFFECT,
330 "lock, unlock, both, neither");
332 *flags_inout &= ~(ACTION_LOCK_NO_LOCK | ACTION_LOCK_NO_UNLOCK);
333 *flags_inout |= flags;
338 HandleLockMods(struct xkb_keymap *keymap, union xkb_action *action,
339 enum action_field field, const ExprDef *array_ndx,
340 const ExprDef *value)
342 struct xkb_mod_action *act = &action->mods;
344 if (array_ndx && (field == ACTION_FIELD_MODIFIERS ||
345 field == ACTION_FIELD_AFFECT))
346 return ReportActionNotArray(keymap, action->type, field);
349 case ACTION_FIELD_MODIFIERS:
350 return CheckModifierField(keymap, action->type, value,
351 &act->flags, &act->mods.mods);
352 case ACTION_FIELD_AFFECT:
353 return CheckAffectField(keymap, action->type, value, &act->flags);
358 return ReportIllegal(keymap, action->type, field);
362 CheckGroupField(struct xkb_keymap *keymap, unsigned action,
363 const ExprDef *value, enum xkb_action_flags *flags_inout,
367 xkb_layout_index_t idx;
368 enum xkb_action_flags flags = *flags_inout;
370 if (value->expr.op == EXPR_NEGATE || value->expr.op == EXPR_UNARY_PLUS) {
371 flags &= ~ACTION_ABSOLUTE_SWITCH;
372 spec = value->unary.child;
375 flags |= ACTION_ABSOLUTE_SWITCH;
379 if (!ExprResolveGroup(keymap->ctx, spec, &idx))
380 return ReportMismatch(keymap, action, ACTION_FIELD_GROUP,
381 "integer (range 1..8)");
383 /* +n, -n are relative, n is absolute. */
384 if (value->expr.op == EXPR_NEGATE || value->expr.op == EXPR_UNARY_PLUS) {
385 *group_rtrn = (int32_t) idx;
386 if (value->expr.op == EXPR_NEGATE)
387 *group_rtrn = -*group_rtrn;
390 *group_rtrn = (int32_t) (idx - 1);
392 *flags_inout = flags;
397 HandleSetLatchGroup(struct xkb_keymap *keymap, union xkb_action *action,
398 enum action_field field, const ExprDef *array_ndx,
399 const ExprDef *value)
401 struct xkb_group_action *act = &action->group;
405 case ACTION_FIELD_CLEAR_LOCKS:
406 case ACTION_FIELD_LATCH_TO_LOCK:
407 case ACTION_FIELD_GROUP:
408 return ReportActionNotArray(keymap, action->type, field);
415 case ACTION_FIELD_CLEAR_LOCKS:
416 case ACTION_FIELD_LATCH_TO_LOCK:
417 return CheckLatchLockFlags(keymap, action->type, field, value,
419 case ACTION_FIELD_GROUP:
420 return CheckGroupField(keymap, action->type, value,
421 &act->flags, &act->group);
426 return ReportIllegal(keymap, action->type, field);
430 HandleLockGroup(struct xkb_keymap *keymap, union xkb_action *action,
431 enum action_field field, const ExprDef *array_ndx,
432 const ExprDef *value)
434 struct xkb_group_action *act = &action->group;
436 if (array_ndx && field == ACTION_FIELD_GROUP)
437 return ReportActionNotArray(keymap, action->type, field);
439 if (field == ACTION_FIELD_GROUP)
440 return CheckGroupField(keymap, action->type, value,
441 &act->flags, &act->group);
443 return ReportIllegal(keymap, action->type, field);
447 HandleMovePtr(struct xkb_keymap *keymap, union xkb_action *action,
448 enum action_field field, const ExprDef *array_ndx,
449 const ExprDef *value)
451 struct xkb_pointer_action *act = &action->ptr;
453 if (array_ndx && (field == ACTION_FIELD_X || field == ACTION_FIELD_Y))
454 return ReportActionNotArray(keymap, action->type, field);
456 if (field == ACTION_FIELD_X || field == ACTION_FIELD_Y) {
458 const bool absolute = (value->expr.op != EXPR_NEGATE &&
459 value->expr.op != EXPR_UNARY_PLUS);
461 if (!ExprResolveInteger(keymap->ctx, value, &val))
462 return ReportMismatch(keymap, action->type, field, "integer");
464 if (val < INT16_MIN || val > INT16_MAX) {
466 "The %s field in the %s action must be in range %d..%d; "
467 "Action definition ignored\n",
468 fieldText(field), ActionTypeText(action->type),
469 INT16_MIN, INT16_MAX);
473 if (field == ACTION_FIELD_X) {
475 act->flags |= ACTION_ABSOLUTE_X;
476 act->x = (int16_t) val;
480 act->flags |= ACTION_ABSOLUTE_Y;
481 act->y = (int16_t) val;
486 else if (field == ACTION_FIELD_ACCEL) {
489 if (!ExprResolveBoolean(keymap->ctx, value, &set))
490 return ReportMismatch(keymap, action->type, field, "boolean");
493 act->flags &= ~ACTION_NO_ACCEL;
495 act->flags |= ACTION_NO_ACCEL;
498 return ReportIllegal(keymap, action->type, field);
502 HandlePtrBtn(struct xkb_keymap *keymap, union xkb_action *action,
503 enum action_field field, const ExprDef *array_ndx,
504 const ExprDef *value)
506 struct xkb_pointer_button_action *act = &action->btn;
508 if (field == ACTION_FIELD_BUTTON) {
512 return ReportActionNotArray(keymap, action->type, field);
514 if (!ExprResolveButton(keymap->ctx, value, &btn))
515 return ReportMismatch(keymap, action->type, field,
516 "integer (range 1..5)");
518 if (btn < 0 || btn > 5) {
520 "Button must specify default or be in the range 1..5; "
521 "Illegal button value %d ignored\n", btn);
528 else if (action->type == ACTION_TYPE_PTR_LOCK &&
529 field == ACTION_FIELD_AFFECT) {
531 return ReportActionNotArray(keymap, action->type, field);
533 return CheckAffectField(keymap, action->type, value, &act->flags);
535 else if (field == ACTION_FIELD_COUNT) {
539 return ReportActionNotArray(keymap, action->type, field);
541 if (!ExprResolveInteger(keymap->ctx, value, &val))
542 return ReportMismatch(keymap, action->type, field, "integer");
544 if (val < 0 || val > 255) {
546 "The count field must have a value in the range 0..255; "
547 "Illegal count %d ignored\n", val);
551 act->count = (uint8_t) val;
554 return ReportIllegal(keymap, action->type, field);
557 static const LookupEntry ptrDflts[] = {
559 { "defaultbutton", 1 },
565 HandleSetPtrDflt(struct xkb_keymap *keymap, union xkb_action *action,
566 enum action_field field, const ExprDef *array_ndx,
567 const ExprDef *value)
569 struct xkb_pointer_default_action *act = &action->dflt;
571 if (field == ACTION_FIELD_AFFECT) {
575 return ReportActionNotArray(keymap, action->type, field);
577 if (!ExprResolveEnum(keymap->ctx, value, &val, ptrDflts))
578 return ReportMismatch(keymap, action->type, field,
579 "pointer component");
582 else if (field == ACTION_FIELD_BUTTON || field == ACTION_FIELD_VALUE) {
583 const ExprDef *button;
587 return ReportActionNotArray(keymap, action->type, field);
589 if (value->expr.op == EXPR_NEGATE ||
590 value->expr.op == EXPR_UNARY_PLUS) {
591 act->flags &= ~ACTION_ABSOLUTE_SWITCH;
592 button = value->unary.child;
595 act->flags |= ACTION_ABSOLUTE_SWITCH;
599 if (!ExprResolveButton(keymap->ctx, button, &btn))
600 return ReportMismatch(keymap, action->type, field,
601 "integer (range 1..5)");
603 if (btn < 0 || btn > 5) {
605 "New default button value must be in the range 1..5; "
606 "Illegal default button value %d ignored\n", btn);
611 "Cannot set default pointer button to \"default\"; "
612 "Illegal default button setting ignored\n");
616 act->value = (value->expr.op == EXPR_NEGATE ? -btn: btn);
620 return ReportIllegal(keymap, action->type, field);
624 HandleSwitchScreen(struct xkb_keymap *keymap, union xkb_action *action,
625 enum action_field field, const ExprDef *array_ndx,
626 const ExprDef *value)
628 struct xkb_switch_screen_action *act = &action->screen;
630 if (field == ACTION_FIELD_SCREEN) {
635 return ReportActionNotArray(keymap, action->type, field);
637 if (value->expr.op == EXPR_NEGATE ||
638 value->expr.op == EXPR_UNARY_PLUS) {
639 act->flags &= ~ACTION_ABSOLUTE_SWITCH;
640 scrn = value->unary.child;
643 act->flags |= ACTION_ABSOLUTE_SWITCH;
647 if (!ExprResolveInteger(keymap->ctx, scrn, &val))
648 return ReportMismatch(keymap, action->type, field,
651 if (val < 0 || val > 255) {
653 "Screen index must be in the range 1..255; "
654 "Illegal screen value %d ignored\n", val);
658 act->screen = (value->expr.op == EXPR_NEGATE ? -val : val);
661 else if (field == ACTION_FIELD_SAME) {
665 return ReportActionNotArray(keymap, action->type, field);
667 if (!ExprResolveBoolean(keymap->ctx, value, &set))
668 return ReportMismatch(keymap, action->type, field, "boolean");
671 act->flags &= ~ACTION_SAME_SCREEN;
673 act->flags |= ACTION_SAME_SCREEN;
678 return ReportIllegal(keymap, action->type, field);
682 HandleSetLockControls(struct xkb_keymap *keymap, union xkb_action *action,
683 enum action_field field, const ExprDef *array_ndx,
684 const ExprDef *value)
686 struct xkb_controls_action *act = &action->ctrls;
688 if (field == ACTION_FIELD_CONTROLS) {
692 return ReportActionNotArray(keymap, action->type, field);
694 if (!ExprResolveMask(keymap->ctx, value, &mask, ctrlMaskNames))
695 return ReportMismatch(keymap, action->type, field,
701 else if (field == ACTION_FIELD_AFFECT) {
703 return ReportActionNotArray(keymap, action->type, field);
705 return CheckAffectField(keymap, action->type, value, &act->flags);
708 return ReportIllegal(keymap, action->type, field);
712 HandlePrivate(struct xkb_keymap *keymap, union xkb_action *action,
713 enum action_field field, const ExprDef *array_ndx,
714 const ExprDef *value)
716 struct xkb_private_action *act = &action->priv;
718 if (field == ACTION_FIELD_TYPE) {
721 if (!ExprResolveInteger(keymap->ctx, value, &type))
722 return ReportMismatch(keymap, ACTION_TYPE_PRIVATE, field, "integer");
724 if (type < 0 || type > 255) {
726 "Private action type must be in the range 0..255; "
727 "Illegal type %d ignored\n", type);
732 * It's possible for someone to write something like this:
733 * actions = [ Private(type=3,data[0]=1,data[1]=3,data[2]=3) ]
734 * where the type refers to some existing action type, e.g. LockMods.
735 * This assumes that this action's struct is laid out in memory
736 * exactly as described in the XKB specification and libraries.
737 * We, however, have changed these structs in various ways, so this
738 * assumption is no longer true. Since this is a lousy "feature", we
739 * make actions like these no-ops for now.
741 if (type < ACTION_TYPE_PRIVATE) {
742 log_info(keymap->ctx,
743 "Private actions of type %s are not supported; Ignored\n",
744 ActionTypeText(type));
745 act->type = ACTION_TYPE_NONE;
748 act->type = (enum xkb_action_type) type;
753 else if (field == ACTION_FIELD_DATA) {
754 if (array_ndx == NULL) {
759 if (!ExprResolveString(keymap->ctx, value, &val))
760 return ReportMismatch(keymap, action->type, field, "string");
762 str = xkb_atom_text(keymap->ctx, val);
764 if (len < 1 || len > 7) {
765 log_warn(keymap->ctx,
766 "A private action has 7 data bytes; "
767 "Illegal data ignored\n");
771 strncpy((char *) act->data, str, sizeof(act->data));
777 if (!ExprResolveInteger(keymap->ctx, array_ndx, &ndx)) {
779 "Array subscript must be integer; "
780 "Illegal subscript ignored\n");
784 if (ndx < 0 || (size_t) ndx >= sizeof(act->data)) {
786 "The data for a private action is %lu bytes long; "
787 "Attempt to use data[%d] ignored\n",
788 (unsigned long) sizeof(act->data), ndx);
792 if (!ExprResolveInteger(keymap->ctx, value, &datum))
793 return ReportMismatch(keymap, act->type, field, "integer");
795 if (datum < 0 || datum > 255) {
797 "All data for a private action must be 0..255; "
798 "Illegal datum %d ignored\n", datum);
802 act->data[ndx] = (uint8_t) datum;
807 return ReportIllegal(keymap, ACTION_TYPE_NONE, field);
810 typedef bool (*actionHandler)(struct xkb_keymap *keymap,
811 union xkb_action *action,
812 enum action_field field,
813 const ExprDef *array_ndx,
814 const ExprDef *value);
816 static const actionHandler handleAction[_ACTION_TYPE_NUM_ENTRIES] = {
817 [ACTION_TYPE_NONE] = HandleNoAction,
818 [ACTION_TYPE_MOD_SET] = HandleSetLatchMods,
819 [ACTION_TYPE_MOD_LATCH] = HandleSetLatchMods,
820 [ACTION_TYPE_MOD_LOCK] = HandleLockMods,
821 [ACTION_TYPE_GROUP_SET] = HandleSetLatchGroup,
822 [ACTION_TYPE_GROUP_LATCH] = HandleSetLatchGroup,
823 [ACTION_TYPE_GROUP_LOCK] = HandleLockGroup,
824 [ACTION_TYPE_PTR_MOVE] = HandleMovePtr,
825 [ACTION_TYPE_PTR_BUTTON] = HandlePtrBtn,
826 [ACTION_TYPE_PTR_LOCK] = HandlePtrBtn,
827 [ACTION_TYPE_PTR_DEFAULT] = HandleSetPtrDflt,
828 [ACTION_TYPE_TERMINATE] = HandleNoAction,
829 [ACTION_TYPE_SWITCH_VT] = HandleSwitchScreen,
830 [ACTION_TYPE_CTRL_SET] = HandleSetLockControls,
831 [ACTION_TYPE_CTRL_LOCK] = HandleSetLockControls,
832 [ACTION_TYPE_PRIVATE] = HandlePrivate,
835 /***====================================================================***/
838 HandleActionDef(ExprDef *def, struct xkb_keymap *keymap,
839 union xkb_action *action, ActionsInfo *info)
843 unsigned handler_type;
845 if (def->expr.op != EXPR_ACTION_DECL) {
846 log_err(keymap->ctx, "Expected an action definition, found %s\n",
847 expr_op_type_to_string(def->expr.op));
851 str = xkb_atom_text(keymap->ctx, def->action.name);
852 if (!stringToAction(str, &handler_type)) {
853 log_err(keymap->ctx, "Unknown action %s\n", str);
858 * Get the default values for this action type, as modified by
859 * statements such as:
860 * latchMods.clearLocks = True;
862 *action = info->actions[handler_type];
865 * Now change the action properties as specified for this
866 * particular instance, e.g. "modifiers" and "clearLocks" in:
867 * SetMods(modifiers=Alt,clearLocks);
869 for (arg = def->action.args; arg != NULL;
870 arg = (ExprDef *) arg->common.next) {
871 const ExprDef *value;
872 ExprDef *field, *arrayRtrn;
873 const char *elemRtrn, *fieldRtrn;
874 enum action_field fieldNdx;
876 if (arg->expr.op == EXPR_ASSIGN) {
877 field = arg->binary.left;
878 value = arg->binary.right;
880 else if (arg->expr.op == EXPR_NOT || arg->expr.op == EXPR_INVERT) {
881 field = arg->unary.child;
882 value = (const ExprDef *) &constFalse;
886 value = (const ExprDef *) &constTrue;
889 if (!ExprResolveLhs(keymap->ctx, field, &elemRtrn, &fieldRtrn,
895 "Cannot change defaults in an action definition; "
896 "Ignoring attempt to change %s.%s\n",
897 elemRtrn, fieldRtrn);
901 if (!stringToField(fieldRtrn, &fieldNdx)) {
902 log_err(keymap->ctx, "Unknown field name %s\n", fieldRtrn);
906 if (!handleAction[handler_type](keymap, action, fieldNdx, arrayRtrn,
916 SetActionField(struct xkb_keymap *keymap, const char *elem, const char *field,
917 ExprDef *array_ndx, ExprDef *value, ActionsInfo *info)
920 enum action_field action_field;
922 if (!stringToAction(elem, &action))
925 if (!stringToField(field, &action_field)) {
926 log_err(keymap->ctx, "\"%s\" is not a legal field name\n", field);
930 return handleAction[action](keymap, &info->actions[action],
931 action_field, array_ndx, value);