diff options
Diffstat (limited to 'src/3rdparty/xkbcommon/src/compose/compose-state.c')
| -rw-r--r-- | src/3rdparty/xkbcommon/src/compose/compose-state.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/src/3rdparty/xkbcommon/src/compose/compose-state.c b/src/3rdparty/xkbcommon/src/compose/compose-state.c deleted file mode 100644 index 8657ff7e17..0000000000 --- a/src/3rdparty/xkbcommon/src/compose/compose-state.c +++ /dev/null @@ -1,196 +0,0 @@ -/* - * Copyright © 2013 Ran Benita <ran234@gmail.com> - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -#include "table.h" -#include "utils.h" -#include "keysym.h" - -struct xkb_compose_state { - int refcnt; - enum xkb_compose_state_flags flags; - struct xkb_compose_table *table; - - /* - * Offsets into xkb_compose_table::nodes. - * - * They maintain the current and previous position in the trie; see - * xkb_compose_state_feed(). - * - * This is also sufficient for inferring the current status; see - * xkb_compose_state_get_status(). - */ - uint32_t prev_context; - uint32_t context; -}; - -XKB_EXPORT struct xkb_compose_state * -xkb_compose_state_new(struct xkb_compose_table *table, - enum xkb_compose_state_flags flags) -{ - struct xkb_compose_state *state; - - state = calloc(1, sizeof(*state)); - if (!state) - return NULL; - - state->refcnt = 1; - state->table = xkb_compose_table_ref(table); - - state->flags = flags; - state->prev_context = 0; - state->context = 0; - - return state; -} - -XKB_EXPORT struct xkb_compose_state * -xkb_compose_state_ref(struct xkb_compose_state *state) -{ - state->refcnt++; - return state; -} - -XKB_EXPORT void -xkb_compose_state_unref(struct xkb_compose_state *state) -{ - if (!state || --state->refcnt > 0) - return; - - xkb_compose_table_unref(state->table); - free(state); -} - -XKB_EXPORT struct xkb_compose_table * -xkb_compose_state_get_compose_table(struct xkb_compose_state *state) -{ - return state->table; -} - -XKB_EXPORT enum xkb_compose_feed_result -xkb_compose_state_feed(struct xkb_compose_state *state, xkb_keysym_t keysym) -{ - uint32_t context; - const struct compose_node *node; - - /* - * Modifiers do not affect the sequence directly. In particular, - * they do not cancel a sequence; otherwise it'd be impossible to - * have a sequence like <dead_acute><A> (needs Shift in the middle). - * - * The following test is not really accurate - in order to test if - * a key is "modifier key", we really need the keymap, but we don't - * have it here. However, this is (approximately) what libX11 does - * as well. - */ - if (xkb_keysym_is_modifier(keysym)) - return XKB_COMPOSE_FEED_IGNORED; - - node = &darray_item(state->table->nodes, state->context); - - context = (node->is_leaf ? 0 : node->u.successor); - node = &darray_item(state->table->nodes, context); - - while (node->keysym != keysym && node->next != 0) { - context = node->next; - node = &darray_item(state->table->nodes, context); - } - - if (node->keysym != keysym) - context = 0; - - state->prev_context = state->context; - state->context = context; - return XKB_COMPOSE_FEED_ACCEPTED; -} - -XKB_EXPORT void -xkb_compose_state_reset(struct xkb_compose_state *state) -{ - state->prev_context = 0; - state->context = 0; -} - -XKB_EXPORT enum xkb_compose_status -xkb_compose_state_get_status(struct xkb_compose_state *state) -{ - const struct compose_node *prev_node, *node; - - prev_node = &darray_item(state->table->nodes, state->prev_context); - node = &darray_item(state->table->nodes, state->context); - - if (state->context == 0 && !prev_node->is_leaf) - return XKB_COMPOSE_CANCELLED; - - if (state->context == 0) - return XKB_COMPOSE_NOTHING; - - if (!node->is_leaf) - return XKB_COMPOSE_COMPOSING; - - return XKB_COMPOSE_COMPOSED; -} - -XKB_EXPORT int -xkb_compose_state_get_utf8(struct xkb_compose_state *state, - char *buffer, size_t size) -{ - const struct compose_node *node = - &darray_item(state->table->nodes, state->context); - - if (!node->is_leaf) - goto fail; - - /* If there's no string specified, but only a keysym, try to do the - * most helpful thing. */ - if (node->u.leaf.utf8 == 0 && node->u.leaf.keysym != XKB_KEY_NoSymbol) { - char name[64]; - int ret; - - ret = xkb_keysym_to_utf8(node->u.leaf.keysym, name, sizeof(name)); - if (ret < 0 || ret == 0) { - /* ret < 0 is impossible. - * ret == 0 means the keysym has no string representation. */ - goto fail; - } - - return snprintf(buffer, size, "%s", name); - } - - return snprintf(buffer, size, "%s", - &darray_item(state->table->utf8, node->u.leaf.utf8)); - -fail: - if (size > 0) - buffer[0] = '\0'; - return 0; -} - -XKB_EXPORT xkb_keysym_t -xkb_compose_state_get_one_sym(struct xkb_compose_state *state) -{ - const struct compose_node *node = - &darray_item(state->table->nodes, state->context); - if (!node->is_leaf) - return XKB_KEY_NoSymbol; - return node->u.leaf.keysym; -} |