/************************************************************
-Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
-
-Permission to use, copy, modify, and distribute this
-software and its documentation for any purpose and without
-fee is hereby granted, provided that the above copyright
-notice appear in all copies and that both that copyright
-notice and this permission notice appear in supporting
-documentation, and that the name of Silicon Graphics not be
-used in advertising or publicity pertaining to distribution
-of the software without specific prior written permission.
-Silicon Graphics makes no representation about the suitability
-of this software for any purpose. It is provided "as is"
-without any express or implied warranty.
-
-SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
-SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
-AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
-GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
-DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
-DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
-OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
-THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-********************************************************/
+ * Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
+ *
+ * Permission to use, copy, modify, and distribute this
+ * software and its documentation for any purpose and without
+ * fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright
+ * notice and this permission notice appear in supporting
+ * documentation, and that the name of Silicon Graphics not be
+ * used in advertising or publicity pertaining to distribution
+ * of the software without specific prior written permission.
+ * Silicon Graphics makes no representation about the suitability
+ * of this software for any purpose. It is provided "as is"
+ * without any express or implied warranty.
+ *
+ * SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
+ * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+ * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
+ * THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ ********************************************************/
/*
* Copyright © 2012 Intel Corporation
struct xkb_filter {
struct xkb_state *state;
union xkb_action action;
- xkb_keycode_t keycode;
+ xkb_keycode_t kc;
uint32_t priv;
- int (*func)(struct xkb_filter *filter, xkb_keycode_t key,
+ int (*func)(struct xkb_filter *filter, xkb_keycode_t kc,
enum xkb_key_direction direction);
int refcnt;
struct xkb_filter *next;
};
+struct xkb_state {
+ xkb_group_index_t base_group; /**< depressed */
+ xkb_group_index_t latched_group;
+ xkb_group_index_t locked_group;
+ xkb_group_index_t group; /**< effective */
+
+ xkb_mod_mask_t base_mods; /**< depressed */
+ xkb_mod_mask_t latched_mods;
+ xkb_mod_mask_t locked_mods;
+ xkb_mod_mask_t mods; /**< effective */
+
+ /*
+ * At each event, we accumulate all the needed modifications to the base
+ * modifiers, and apply them at the end. These keep track of this state.
+ */
+ xkb_mod_mask_t set_mods;
+ xkb_mod_mask_t clear_mods;
+ /*
+ * We mustn't clear a base modifier if there's another depressed key
+ * which affects it, e.g. given this sequence
+ * < Left Shift down, Right Shift down, Left Shift Up >
+ * the modifier should still be set. This keeps the count.
+ */
+ int16_t mod_key_count[sizeof(xkb_mod_mask_t) * 8];
+
+ uint32_t leds;
+
+ int refcnt;
+ darray(struct xkb_filter) filters;
+ struct xkb_keymap *keymap;
+};
+
static union xkb_action *
-xkb_key_get_action(struct xkb_state *state, xkb_keycode_t key)
+xkb_key_get_action(struct xkb_state *state, xkb_keycode_t kc)
{
- int group, level;
+ xkb_group_index_t group;
+ unsigned int level;
+ struct xkb_key *key = NULL;
+
+ if (XkbKeycodeInRange(state->keymap, kc))
+ key = XkbKey(state->keymap, kc);
- if (!XkbKeyHasActions(state->keymap, key) ||
- !XkbKeycodeInRange(state->keymap, key)) {
+ if (!key || !XkbKeyHasActions(key)) {
static union xkb_action fake;
memset(&fake, 0, sizeof(fake));
fake.type = XkbSA_NoAction;
return &fake;
}
- group = xkb_key_get_group(state, key);
- level = xkb_key_get_level(state, key, group);
+ group = xkb_key_get_group(state, kc);
+ level = xkb_key_get_level(state, kc, group);
- return XkbKeyActionEntry(state->keymap, key, level, group);
+ return XkbKeyActionEntry(state->keymap, key, group, level);
}
static struct xkb_filter *
xkb_filter_new(struct xkb_state *state)
{
- int i;
- int old_size = state->num_filters;
- struct xkb_filter *filters = state->filters;
+ int old_size = darray_size(state->filters);
+ struct xkb_filter *filter = NULL, *iter;
- for (i = 0; i < state->num_filters; i++) {
- if (filters[i].func)
+ darray_foreach(iter, state->filters) {
+ if (iter->func)
continue;
- filters[i].state = state;
- filters[i].refcnt = 1;
- return &filters[i];
+ filter = iter;
+ break;
}
- if (state->num_filters > 0)
- state->num_filters *= 2;
- else
- state->num_filters = 4;
- filters = realloc(filters, state->num_filters * sizeof(*filters));
- if (!filters) { /* WSGO */
- state->num_filters = old_size;
- return NULL;
+ if (!filter) {
+ darray_resize0(state->filters, darray_size(state->filters) + 1);
+ filter = &darray_item(state->filters, old_size);
}
- state->filters = filters;
- memset(&filters[old_size], 0,
- (state->num_filters - old_size) * sizeof(*filters));
-
- filters[old_size].state = state;
- filters[old_size].refcnt = 1;
- return &filters[old_size];
+ filter->state = state;
+ filter->refcnt = 1;
+ return filter;
}
/***====================================================================***/
static int
-xkb_filter_group_set_func(struct xkb_filter *filter, xkb_keycode_t keycode,
+xkb_filter_group_set_func(struct xkb_filter *filter, xkb_keycode_t kc,
enum xkb_key_direction direction)
{
- if (keycode != filter->keycode) {
+ if (kc != filter->kc) {
filter->action.group.flags &= ~XkbSA_ClearLocks;
return 1;
}
}
static int
-xkb_filter_group_set_new(struct xkb_state *state, xkb_keycode_t keycode,
+xkb_filter_group_set_new(struct xkb_state *state, xkb_keycode_t kc,
union xkb_action *action)
{
struct xkb_filter *filter = xkb_filter_new(state);
if (!filter) /* WSGO */
return -1;
- filter->keycode = keycode;
+ filter->kc = kc;
filter->func = xkb_filter_group_set_func;
filter->action = *action;
}
static int
-xkb_filter_group_lock_func(struct xkb_filter *filter, xkb_keycode_t keycode,
+xkb_filter_group_lock_func(struct xkb_filter *filter, xkb_keycode_t kc,
enum xkb_key_direction direction)
{
- if (keycode != filter->keycode)
+ if (kc != filter->kc)
return 1;
if (direction == XKB_KEY_DOWN) {
}
static int
-xkb_filter_group_lock_new(struct xkb_state *state, xkb_keycode_t keycode,
+xkb_filter_group_lock_new(struct xkb_state *state, xkb_keycode_t kc,
union xkb_action *action)
{
struct xkb_filter *filter = xkb_filter_new(state);
if (!filter)
return 0;
- filter->keycode = keycode;
+ filter->kc = kc;
filter->func = xkb_filter_group_lock_func;
filter->action = *action;
}
static int
-xkb_filter_mod_set_func(struct xkb_filter *filter, xkb_keycode_t keycode,
+xkb_filter_mod_set_func(struct xkb_filter *filter, xkb_keycode_t kc,
enum xkb_key_direction direction)
{
- if (keycode != filter->keycode) {
+ if (kc != filter->kc) {
filter->action.mods.flags &= ~XkbSA_ClearLocks;
return 1;
}
return 0;
}
- filter->state->base_mods &= ~(filter->action.mods.mask);
+ filter->state->clear_mods = filter->action.mods.mask;
if (filter->action.mods.flags & XkbSA_ClearLocks)
filter->state->locked_mods &= ~filter->action.mods.mask;
}
static int
-xkb_filter_mod_set_new(struct xkb_state *state, xkb_keycode_t keycode,
+xkb_filter_mod_set_new(struct xkb_state *state, xkb_keycode_t kc,
union xkb_action *action)
{
struct xkb_filter *filter = xkb_filter_new(state);
if (!filter) /* WSGO */
return -1;
- filter->keycode = keycode;
+ filter->kc = kc;
filter->func = xkb_filter_mod_set_func;
filter->action = *action;
- filter->state->base_mods |= action->mods.mask;
+ filter->state->set_mods = action->mods.mask;
return 1;
}
static int
-xkb_filter_mod_lock_func(struct xkb_filter *filter, xkb_keycode_t keycode,
+xkb_filter_mod_lock_func(struct xkb_filter *filter, xkb_keycode_t kc,
enum xkb_key_direction direction)
{
- if (keycode != filter->keycode)
+ if (kc != filter->kc)
return 1;
if (direction == XKB_KEY_DOWN) {
}
static int
-xkb_filter_mod_lock_new(struct xkb_state *state, xkb_keycode_t keycode,
+xkb_filter_mod_lock_new(struct xkb_state *state, xkb_keycode_t kc,
union xkb_action *action)
{
struct xkb_filter *filter = xkb_filter_new(state);
if (!filter) /* WSGO */
return 0;
- filter->keycode = keycode;
+ filter->kc = kc;
filter->func = xkb_filter_mod_lock_func;
filter->action = *action;
filter->priv = state->locked_mods & action->mods.mask;
};
static int
-xkb_filter_mod_latch_func(struct xkb_filter *filter, xkb_keycode_t keycode,
+xkb_filter_mod_latch_func(struct xkb_filter *filter, xkb_keycode_t kc,
enum xkb_key_direction direction)
{
enum xkb_key_latch_state latch = filter->priv;
* keypress, then either break the latch if any random key is pressed,
* or promote it to a lock or plain base set if it's the same
* modifier. */
- union xkb_action *action = xkb_key_get_action(filter->state, keycode);
+ union xkb_action *action = xkb_key_get_action(filter->state, kc);
if (action->type == XkbSA_LatchMods &&
action->mods.flags == filter->action.mods.flags &&
action->mods.mask == filter->action.mods.mask) {
else {
filter->action.type = XkbSA_SetMods;
filter->func = xkb_filter_mod_set_func;
- filter->state->base_mods |= filter->action.mods.mask;
+ filter->state->set_mods = filter->action.mods.mask;
}
- filter->keycode = keycode;
+ filter->kc = kc;
filter->state->latched_mods &= ~filter->action.mods.mask;
/* XXX beep beep! */
return 0;
return 1;
}
}
- else if (direction == XKB_KEY_UP && keycode == filter->keycode) {
+ else if (direction == XKB_KEY_UP && kc == filter->kc) {
/* Our key got released. If we've set it to clear locks, and we
* currently have the same modifiers locked, then release them and
* don't actually latch. Else we've actually hit the latching
if (latch == LATCH_PENDING)
filter->state->latched_mods &= ~filter->action.mods.mask;
else
- filter->state->base_mods &= ~filter->action.mods.mask;
+ filter->state->clear_mods = filter->action.mods.mask;
filter->state->locked_mods &= ~filter->action.mods.mask;
filter->func = NULL;
}
else {
latch = LATCH_PENDING;
- filter->state->base_mods &= ~filter->action.mods.mask;
+ filter->state->clear_mods = filter->action.mods.mask;
filter->state->latched_mods |= filter->action.mods.mask;
/* XXX beep beep! */
}
}
static int
-xkb_filter_mod_latch_new(struct xkb_state *state, xkb_keycode_t keycode,
+xkb_filter_mod_latch_new(struct xkb_state *state, xkb_keycode_t kc,
union xkb_action *action)
{
struct xkb_filter *filter = xkb_filter_new(state);
if (!filter) /* WSGO */
return -1;
- filter->keycode = keycode;
+ filter->kc = kc;
filter->priv = latch;
filter->func = xkb_filter_mod_latch_func;
filter->action = *action;
- filter->state->base_mods |= action->mods.mask;
+ filter->state->set_mods = action->mods.mask;
return 1;
}
* apply a new filter from the key action.
*/
static void
-xkb_filter_apply_all(struct xkb_state *state, xkb_keycode_t key,
+xkb_filter_apply_all(struct xkb_state *state, xkb_keycode_t kc,
enum xkb_key_direction direction)
{
- struct xkb_filter *filters = state->filters;
+ struct xkb_filter *filter;
union xkb_action *act = NULL;
int send = 1;
- int i;
/* First run through all the currently active filters and see if any of
* them have claimed this event. */
- for (i = 0; i < state->num_filters; i++) {
- if (!filters[i].func)
+ darray_foreach(filter, state->filters) {
+ if (!filter->func)
continue;
- send &= (*filters[i].func)(&filters[i], key, direction);
+ send &= filter->func(filter, kc, direction);
}
if (!send || direction == XKB_KEY_UP)
return;
- act = xkb_key_get_action(state, key);
+ act = xkb_key_get_action(state, kc);
switch (act->type) {
case XkbSA_SetMods:
- send = xkb_filter_mod_set_new(state, key, act);
+ send = xkb_filter_mod_set_new(state, kc, act);
break;
case XkbSA_LatchMods:
- send = xkb_filter_mod_latch_new(state, key, act);
+ send = xkb_filter_mod_latch_new(state, kc, act);
break;
case XkbSA_LockMods:
- send = xkb_filter_mod_lock_new(state, key, act);
+ send = xkb_filter_mod_lock_new(state, kc, act);
break;
case XkbSA_SetGroup:
- send = xkb_filter_group_set_new(state, key, act);
+ send = xkb_filter_group_set_new(state, kc, act);
break;
#if 0
case XkbSA_LatchGroup:
break;
#endif
case XkbSA_LockGroup:
- send = xkb_filter_group_lock_new(state, key, act);
+ send = xkb_filter_group_lock_new(state, kc, act);
break;
}
return;
}
-_X_EXPORT struct xkb_state *
+XKB_EXPORT struct xkb_state *
xkb_state_new(struct xkb_keymap *keymap)
{
struct xkb_state *ret;
return ret;
}
-_X_EXPORT struct xkb_state *
+XKB_EXPORT struct xkb_state *
xkb_state_ref(struct xkb_state *state)
{
state->refcnt++;
return state;
}
-_X_EXPORT void
+XKB_EXPORT void
xkb_state_unref(struct xkb_state *state)
{
state->refcnt--;
return;
xkb_map_unref(state->keymap);
- free(state->filters);
+ darray_free(state->filters);
free(state);
}
-_X_EXPORT struct xkb_keymap *
+XKB_EXPORT struct xkb_keymap *
xkb_state_get_map(struct xkb_state *state)
{
return state->keymap;
state->leds = 0;
for (led = 0; led < XkbNumIndicators; led++) {
- struct xkb_indicator_map *map = &state->keymap->indicators->maps[led];
+ struct xkb_indicator_map *map = &state->keymap->indicators[led];
uint32_t mod_mask = 0;
uint32_t group_mask = 0;
state->leds |= (1 << led);
}
else if (map->ctrls) {
- if ((map->ctrls & state->keymap->ctrls->enabled_ctrls))
+ if ((map->ctrls & state->keymap->enabled_ctrls))
state->leds |= (1 << led);
}
}
static void
xkb_state_update_derived(struct xkb_state *state)
{
- state->mods = (state->base_mods | state->latched_mods | state->locked_mods);
+ state->mods =
+ (state->base_mods | state->latched_mods | state->locked_mods);
/* FIXME: Clamp/wrap locked_group */
state->group = state->locked_group + state->base_group +
state->latched_group;
* Given a particular key event, updates the state structure to reflect the
* new modifiers.
*/
-_X_EXPORT void
-xkb_state_update_key(struct xkb_state *state, xkb_keycode_t key,
+XKB_EXPORT void
+xkb_state_update_key(struct xkb_state *state, xkb_keycode_t kc,
enum xkb_key_direction direction)
{
- xkb_filter_apply_all(state, key, direction);
+ xkb_mod_index_t i;
+ xkb_mod_mask_t bit;
+
+ state->set_mods = 0;
+ state->clear_mods = 0;
+
+ xkb_filter_apply_all(state, kc, direction);
+
+ for (i = 0, bit = 1; state->set_mods; i++, bit <<= 1) {
+ if (state->set_mods & bit) {
+ state->mod_key_count[i]++;
+ state->base_mods |= bit;
+ state->set_mods &= ~bit;
+ }
+ }
+
+ for (i = 0, bit = 1; state->clear_mods; i++, bit <<= 1) {
+ if (state->clear_mods & bit) {
+ state->mod_key_count[i]--;
+ if (state->mod_key_count[i] <= 0) {
+ state->base_mods &= ~bit;
+ state->mod_key_count[i] = 0;
+ }
+ state->clear_mods &= ~bit;
+ }
+ }
+
xkb_state_update_derived(state);
}
/**
* Updates the state from a set of explicit masks as gained from
- * xkb_state_serialise_mods and xkb_state_serialise_groups. As noted in the
+ * xkb_state_serialize_mods and xkb_state_serialize_groups. As noted in the
* documentation for these functions in xkbcommon.h, this round-trip is
* lossy, and should only be used to update a slave state mirroring the
* master, e.g. in a client/server window system.
*/
-_X_EXPORT void
+XKB_EXPORT void
xkb_state_update_mask(struct xkb_state *state,
xkb_mod_mask_t base_mods,
xkb_mod_mask_t latched_mods,
* Serialises the requested modifier state into an xkb_mod_mask_t, with all
* the same disclaimers as in xkb_state_update_mask.
*/
-_X_EXPORT xkb_mod_mask_t
-xkb_state_serialise_mods(struct xkb_state *state,
+XKB_EXPORT xkb_mod_mask_t
+xkb_state_serialize_mods(struct xkb_state *state,
enum xkb_state_component type)
{
xkb_mod_mask_t ret = 0;
* Serialises the requested group state, with all the same disclaimers as
* in xkb_state_update_mask.
*/
-_X_EXPORT xkb_group_index_t
-xkb_state_serialise_group(struct xkb_state *state,
+XKB_EXPORT xkb_group_index_t
+xkb_state_serialize_group(struct xkb_state *state,
enum xkb_state_component type)
{
xkb_group_index_t ret = 0;
* Returns 1 if the given modifier is active with the specified type(s), 0 if
* not, or -1 if the modifier is invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_mod_index_is_active(struct xkb_state *state,
xkb_mod_index_t idx,
enum xkb_state_component type)
match_mod_masks(struct xkb_state *state, enum xkb_state_match match,
uint32_t wanted)
{
- uint32_t active = xkb_state_serialise_mods(state, XKB_STATE_EFFECTIVE);
+ uint32_t active = xkb_state_serialize_mods(state, XKB_STATE_EFFECTIVE);
if (!(match & XKB_STATE_MATCH_NON_EXCLUSIVE) && (active & ~wanted))
return 0;
* Returns 1 if the modifiers are active with the specified type(s), 0 if
* not, or -1 if any of the modifiers are invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_mod_indices_are_active(struct xkb_state *state,
enum xkb_state_component type,
enum xkb_state_match match,
* Returns 1 if the given modifier is active with the specified type(s), 0 if
* not, or -1 if the modifier is invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_mod_name_is_active(struct xkb_state *state, const char *name,
enum xkb_state_component type)
{
* Returns 1 if the modifiers are active with the specified type(s), 0 if
* not, or -1 if any of the modifiers are invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_mod_names_are_active(struct xkb_state *state,
enum xkb_state_component type,
enum xkb_state_match match,
* Returns 1 if the given group is active with the specified type(s), 0 if
* not, or -1 if the group is invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_group_index_is_active(struct xkb_state *state,
xkb_group_index_t idx,
enum xkb_state_component type)
* Returns 1 if the given modifier is active with the specified type(s), 0 if
* not, or -1 if the modifier is invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_group_name_is_active(struct xkb_state *state, const char *name,
enum xkb_state_component type)
{
/**
* Returns 1 if the given LED is active, 0 if not, or -1 if the LED is invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_led_index_is_active(struct xkb_state *state, xkb_led_index_t idx)
{
if (idx >= xkb_map_num_leds(state->keymap))
/**
* Returns 1 if the given LED is active, 0 if not, or -1 if the LED is invalid.
*/
-_X_EXPORT int
+XKB_EXPORT int
xkb_state_led_name_is_active(struct xkb_state *state, const char *name)
{
xkb_led_index_t idx = xkb_map_led_get_index(state->keymap, name);
projects / platform / upstream / libxkbcommon.git / blobdiff