/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
/* vim:set et sts=4: */
/* ibus - The Input Bus
* Copyright (C) 2014 Peng Huang <shawn.p.huang@gmail.com>
* Copyright (C) 2015-2018 Takao Fujiwara <takao.fujiwara1@gmail.com>
* Copyright (C) 2014-2017 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "ibuscomposetable.h"
#include "ibusemoji.h"
#include "ibusenginesimple.h"
#include "ibusenginesimpleprivate.h"
#include "ibuskeys.h"
#include "ibuskeysyms.h"
#include "ibusutil.h"
/* This file contains the table of the compose sequences,
* static const guint16 gtk_compose_seqs_compact[] = {}
* It is generated from the compose-parse.py script.
*/
#include "gtkimcontextsimpleseqs.h"
#include <memory.h>
#include <stdlib.h>
#define X11_DATADIR X11_DATA_PREFIX "/share/X11/locale"
#define EMOJI_SOURCE_LEN 100
#define IBUS_ENGINE_SIMPLE_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), IBUS_TYPE_ENGINE_SIMPLE, IBusEngineSimplePrivate))
#define SET_COMPOSE_BUFFER_ELEMENT_NEXT(buffer, index, value) { \
if ((index) < EMOJI_SOURCE_LEN) { \
(buffer)[(index)] = (value); \
(index) += 1; \
} \
}
#define SET_COMPOSE_BUFFER_ELEMENT_END(buffer, index, value) { \
if ((index) >= EMOJI_SOURCE_LEN) { \
(index) = EMOJI_SOURCE_LEN; \
(buffer)[EMOJI_SOURCE_LEN - 1] = (value); \
} else { \
(buffer)[(index)] = (value); \
} \
}
#define CHECK_COMPOSE_BUFFER_LENGTH(index) { \
if ((index) > EMOJI_SOURCE_LEN) \
(index) = EMOJI_SOURCE_LEN; \
}
typedef struct {
GHashTable *dict;
int max_seq_len;
} IBusEngineDict;
struct _IBusEngineSimplePrivate {
guint16 compose_buffer[EMOJI_SOURCE_LEN];
gunichar tentative_match;
gchar *tentative_emoji;
gint tentative_match_len;
guint hex_mode_enabled : 1;
guint in_hex_sequence : 1;
guint in_emoji_sequence : 1;
guint modifiers_dropped : 1;
IBusEngineDict *emoji_dict;
IBusLookupTable *lookup_table;
gboolean lookup_table_visible;
};
/* From the values below, the value 30 means the number of different first keysyms
* that exist in the Compose file (from Xorg). When running compose-parse.py without
* parameters, you get the count that you can put here. Needed when updating the
* gtkimcontextsimpleseqs.h header file (contains the compose sequences).
*/
const IBusComposeTableCompact ibus_compose_table_compact = {
gtk_compose_seqs_compact,
5,
30,
6
};
static GSList *global_tables;
/* functions prototype */
static void ibus_engine_simple_destroy (IBusEngineSimple *simple);
static void ibus_engine_simple_reset (IBusEngine *engine);
static gboolean ibus_engine_simple_process_key_event
(IBusEngine *engine,
guint keyval,
guint keycode,
guint modifiers);
static void ibus_engine_simple_page_down (IBusEngine *engine);
static void ibus_engine_simple_page_up (IBusEngine *engine);
static void ibus_engine_simple_candidate_clicked
(IBusEngine *engine,
guint index,
guint button,
guint state);
static void ibus_engine_simple_commit_char (IBusEngineSimple *simple,
gunichar ch);
static void ibus_engine_simple_commit_str (IBusEngineSimple *simple,
const gchar *str);
static void ibus_engine_simple_update_preedit_text
(IBusEngineSimple *simple);
G_DEFINE_TYPE (IBusEngineSimple, ibus_engine_simple, IBUS_TYPE_ENGINE)
static void
ibus_engine_simple_class_init (IBusEngineSimpleClass *class)
{
IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (class);
IBusEngineClass *engine_class = IBUS_ENGINE_CLASS (class);
ibus_object_class->destroy =
(IBusObjectDestroyFunc) ibus_engine_simple_destroy;
engine_class->reset = ibus_engine_simple_reset;
engine_class->process_key_event
= ibus_engine_simple_process_key_event;
engine_class->page_down = ibus_engine_simple_page_down;
engine_class->page_up = ibus_engine_simple_page_up;
engine_class->candidate_clicked
= ibus_engine_simple_candidate_clicked;
g_type_class_add_private (class, sizeof (IBusEngineSimplePrivate));
}
static void
ibus_engine_simple_init (IBusEngineSimple *simple)
{
simple->priv = IBUS_ENGINE_SIMPLE_GET_PRIVATE (simple);
simple->priv->hex_mode_enabled =
g_getenv("IBUS_ENABLE_CTRL_SHIFT_U") != NULL ||
g_getenv("IBUS_ENABLE_CONTROL_SHIFT_U") != NULL;
}
static void
ibus_engine_simple_destroy (IBusEngineSimple *simple)
{
IBusEngineSimplePrivate *priv = simple->priv;
if (priv->emoji_dict) {
if (priv->emoji_dict->dict)
g_clear_pointer (&priv->emoji_dict->dict, g_hash_table_destroy);
g_slice_free (IBusEngineDict, priv->emoji_dict);
priv->emoji_dict = NULL;
}
g_clear_pointer (&priv->lookup_table, g_object_unref);
g_clear_pointer (&priv->tentative_emoji, g_free);
IBUS_OBJECT_CLASS(ibus_engine_simple_parent_class)->destroy (
IBUS_OBJECT (simple));
}
static void
ibus_engine_simple_reset (IBusEngine *engine)
{
IBusEngineSimple *simple = (IBusEngineSimple *)engine;
IBusEngineSimplePrivate *priv = simple->priv;
priv->compose_buffer[0] = 0;
if (priv->tentative_match || priv->in_hex_sequence) {
priv->in_hex_sequence = FALSE;
priv->tentative_match = 0;
priv->tentative_match_len = 0;
ibus_engine_hide_preedit_text ((IBusEngine *)simple);
} else if (priv->tentative_emoji || priv->in_emoji_sequence) {
priv->in_emoji_sequence = FALSE;
g_clear_pointer (&priv->tentative_emoji, g_free);
ibus_engine_hide_preedit_text ((IBusEngine *)simple);
} else if (!priv->in_hex_sequence && !priv->in_emoji_sequence) {
ibus_engine_hide_preedit_text ((IBusEngine *)simple);
}
}
static void
ibus_engine_simple_commit_char (IBusEngineSimple *simple,
gunichar ch)
{
g_return_if_fail (g_unichar_validate (ch));
IBusEngineSimplePrivate *priv = simple->priv;
if (priv->tentative_match || priv->in_hex_sequence) {
priv->in_hex_sequence = FALSE;
priv->tentative_match = 0;
priv->tentative_match_len = 0;
}
if (priv->tentative_emoji || priv->in_emoji_sequence) {
priv->in_emoji_sequence = FALSE;
g_clear_pointer (&priv->tentative_emoji, g_free);
}
ibus_engine_commit_text ((IBusEngine *)simple,
ibus_text_new_from_unichar (ch));
}
static gunichar
ibus_keysym_to_unicode (guint16 keysym,
gboolean combining) {
#define CASE(keysym_suffix, unicode) \
case IBUS_KEY_dead_##keysym_suffix: return unicode
#define CASE_COMBINE(keysym_suffix, combined_unicode, isolated_unicode) \
case IBUS_KEY_dead_##keysym_suffix: \
if (combining) \
return combined_unicode; \
else \
return isolated_unicode
switch (keysym) {
CASE (a, 0x03041);
CASE (A, 0x03042);
CASE (i, 0x03043);
CASE (I, 0x03044);
CASE (u, 0x03045);
CASE (U, 0x03046);
CASE (e, 0x03047);
CASE (E, 0x03048);
CASE (o, 0x03049);
CASE (O, 0x0304A);
CASE (abovecomma, 0x0313);
CASE_COMBINE (abovedot, 0x0307, 0x02D9);
CASE (abovereversedcomma, 0x0314);
CASE_COMBINE (abovering, 0x030A, 0x02DA);
CASE_COMBINE (acute, 0x0301, 0x00B4);
CASE (belowbreve, 0x032E);
CASE_COMBINE (belowcircumflex, 0x032D, 0xA788);
CASE_COMBINE (belowcomma, 0x0326, 0x002C);
CASE (belowdiaeresis, 0x0324);
CASE_COMBINE (belowdot, 0x0323, 0x002E);
CASE_COMBINE (belowmacron, 0x0331, 0x02CD);
CASE_COMBINE (belowring, 0x030A, 0x02F3);
CASE_COMBINE (belowtilde, 0x0330, 0x02F7);
CASE_COMBINE (breve, 0x0306, 0x02D8);
CASE_COMBINE (capital_schwa, 0x018F, 0x04D8);
CASE_COMBINE (caron, 0x030C, 0x02C7);
CASE_COMBINE (cedilla, 0x0327, 0x00B8);
CASE_COMBINE (circumflex, 0x0302, 0x005E);
CASE (currency, 0x00A4);
// IBUS_KEY_dead_dasia == IBUS_KEY_dead_abovereversedcomma
CASE_COMBINE (diaeresis, 0x0308, 0x00A8);
CASE_COMBINE (doubleacute, 0x030B, 0x02DD);
CASE_COMBINE (doublegrave, 0x030F, 0x02F5);
CASE_COMBINE (grave, 0x0300, 0x0060);
CASE (greek, 0x03BC);
CASE (hook, 0x0309);
CASE (horn, 0x031B);
CASE (invertedbreve, 0x032F);
CASE_COMBINE (iota, 0x0345, 0x037A);
CASE_COMBINE (macron, 0x0304, 0x00AF);
CASE_COMBINE (ogonek, 0x0328, 0x02DB);
// IBUS_KEY_dead_perispomeni == IBUS_KEY_dead_tilde
// IBUS_KEY_dead_psili == IBUS_KEY_dead_abovecomma
CASE_COMBINE (semivoiced_sound, 0x309A, 0x309C);
CASE_COMBINE (small_schwa, 0x1D4A, 0x04D9);
CASE (stroke, 0x002F);
CASE_COMBINE (tilde, 0x0303, 0x007E);
CASE_COMBINE (voiced_sound, 0x3099, 0x309B);
case IBUS_KEY_Multi_key:
return 0x2384;
default:;
}
return 0x0;
#undef CASE
#undef CASE_COMBINE
}
static void
ibus_engine_simple_commit_str (IBusEngineSimple *simple,
const gchar *str)
{
IBusEngineSimplePrivate *priv = simple->priv;
gchar *backup_str;
g_return_if_fail (str && *str);
backup_str = g_strdup (str);
if (priv->tentative_match || priv->in_hex_sequence) {
priv->in_hex_sequence = FALSE;
priv->tentative_match = 0;
priv->tentative_match_len = 0;
ibus_engine_simple_update_preedit_text (simple);
}
if (priv->tentative_emoji || priv->in_emoji_sequence) {
priv->in_emoji_sequence = FALSE;
g_clear_pointer (&priv->tentative_emoji, g_free);
ibus_engine_simple_update_preedit_text (simple);
}
ibus_engine_commit_text ((IBusEngine *)simple,
ibus_text_new_from_string (backup_str));
g_free (backup_str);
}
static void
ibus_engine_simple_update_preedit_text (IBusEngineSimple *simple)
{
IBusEngineSimplePrivate *priv = simple->priv;
gunichar outbuf[EMOJI_SOURCE_LEN + 1];
int len = 0;
if (priv->in_hex_sequence || priv->in_emoji_sequence) {
int hexchars = 0;
if (priv->in_hex_sequence)
outbuf[0] = L'u';
else
outbuf[0] = L'@';
len = 1;
while (priv->compose_buffer[hexchars] != 0) {
outbuf[len] = ibus_keyval_to_unicode (
priv->compose_buffer[hexchars]);
++len;
++hexchars;
}
if (priv->in_hex_sequence)
g_assert (len <= IBUS_MAX_COMPOSE_LEN + 1);
else
g_assert (len <= EMOJI_SOURCE_LEN + 1);
} else if (priv->tentative_match) {
outbuf[len++] = priv->tentative_match;
} else if (priv->tentative_emoji && *priv->tentative_emoji) {
IBusText *text = ibus_text_new_from_string (priv->tentative_emoji);
len = strlen (priv->tentative_emoji);
ibus_text_append_attribute (text,
IBUS_ATTR_TYPE_UNDERLINE, IBUS_ATTR_UNDERLINE_SINGLE, 0, len);
ibus_engine_update_preedit_text ((IBusEngine *)simple, text, len, TRUE);
return;
} else {
int hexchars = 0;
while (priv->compose_buffer[hexchars] != 0) {
guint16 keysym= priv->compose_buffer[hexchars];
gunichar unichar = ibus_keysym_to_unicode (keysym, FALSE);
if (unichar > 0)
outbuf[len] = unichar;
else
outbuf[len] = ibus_keyval_to_unicode (keysym);
if (!outbuf[len]) {
g_warning (
"Not found alternative character of compose key 0x%X",
priv->compose_buffer[hexchars]);
}
++len;
++hexchars;
}
g_assert (len <= IBUS_MAX_COMPOSE_LEN + 1);
}
outbuf[len] = L'\0';
if (len == 0) {
ibus_engine_hide_preedit_text ((IBusEngine *)simple);
}
else {
IBusText *text = ibus_text_new_from_ucs4 (outbuf);
ibus_text_append_attribute (text,
IBUS_ATTR_TYPE_UNDERLINE, IBUS_ATTR_UNDERLINE_SINGLE, 0, len);
ibus_engine_update_preedit_text ((IBusEngine *)simple, text, len, TRUE);
}
}
/* In addition to the table-driven sequences, we allow Unicode hex
* codes to be entered. The method chosen here is similar to the
* one recommended in ISO 14755, but not exactly the same, since we
* don't want to steal 16 valuable key combinations.
*
* A hex Unicode sequence must be started with Ctrl-Shift-U, followed
* by a sequence of hex digits entered with Ctrl-Shift still held.
* Releasing one of the modifiers or pressing space while the modifiers
* are still held commits the character. It is possible to erase
* digits using backspace.
*
* As an extension to the above, we also allow to start the sequence
* with Ctrl-Shift-U, then release the modifiers before typing any
* digits, and enter the digits without modifiers.
*/
#define HEX_MOD_MASK (IBUS_CONTROL_MASK | IBUS_SHIFT_MASK)
static gboolean
check_hex (IBusEngineSimple *simple,
gint n_compose)
{
IBusEngineSimplePrivate *priv = simple->priv;
gint i;
GString *str;
gulong n;
gchar *nptr = NULL;
gchar buf[7];
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
priv->tentative_match = 0;
priv->tentative_match_len = 0;
str = g_string_new (NULL);
i = 0;
while (i < n_compose) {
gunichar ch;
ch = ibus_keyval_to_unicode (priv->compose_buffer[i]);
if (ch == 0)
return FALSE;
if (!g_unichar_isxdigit (ch))
return FALSE;
buf[g_unichar_to_utf8 (ch, buf)] = '\0';
g_string_append (str, buf);
++i;
}
n = strtoul (str->str, &nptr, 16);
/* if strtoul fails it probably means non-latin digits were used;
* we should in principle handle that, but we probably don't.
*/
if (nptr - str->str < str->len) {
g_string_free (str, TRUE);
return FALSE;
} else
g_string_free (str, TRUE);
if (g_unichar_validate (n)) {
priv->tentative_match = n;
priv->tentative_match_len = n_compose;
}
return TRUE;
}
static IBusEngineDict *
load_emoji_dict ()
{
IBusEngineDict *emoji_dict;
GList *keys;
int max_length = 0;
emoji_dict = g_slice_new0 (IBusEngineDict);
emoji_dict->dict = ibus_emoji_dict_load (IBUS_DATA_DIR "/dicts/emoji.dict");
if (!emoji_dict->dict)
return emoji_dict;
keys = g_hash_table_get_keys (emoji_dict->dict);
for (; keys; keys = keys->next) {
int length = strlen (keys->data);
if (max_length < length)
max_length = length;
}
emoji_dict->max_seq_len = max_length;
return emoji_dict;
}
static gboolean
check_emoji_table (IBusEngineSimple *simple,
gint n_compose,
gint index)
{
IBusEngineSimplePrivate *priv = simple->priv;
IBusEngineDict *emoji_dict = priv->emoji_dict;
GString *str = NULL;
gint i;
gchar buf[7];
GSList *words = NULL;
g_assert (IBUS_IS_ENGINE_SIMPLE (simple));
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
if (priv->lookup_table == NULL) {
priv->lookup_table = ibus_lookup_table_new (10, 0, TRUE, TRUE);
g_object_ref_sink (priv->lookup_table);
}
if (emoji_dict == NULL)
emoji_dict = priv->emoji_dict = load_emoji_dict (simple);
if (emoji_dict == NULL || emoji_dict->dict == NULL)
return FALSE;
if (n_compose > emoji_dict->max_seq_len)
return FALSE;
str = g_string_new (NULL);
priv->lookup_table_visible = FALSE;
i = 0;
while (i < n_compose) {
gunichar ch;
ch = ibus_keyval_to_unicode (priv->compose_buffer[i]);
if (ch == 0)
return FALSE;
if (!g_unichar_isprint (ch))
return FALSE;
buf[g_unichar_to_utf8 (ch, buf)] = '\0';
g_string_append (str, buf);
++i;
}
if (str->str) {
words = g_hash_table_lookup (emoji_dict->dict, str->str);
}
g_string_free (str, TRUE);
if (words != NULL) {
int i = 0;
ibus_lookup_table_clear (priv->lookup_table);
priv->lookup_table_visible = TRUE;
while (words) {
if (i == index) {
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->tentative_emoji = g_strdup (words->data);
}
IBusText *text = ibus_text_new_from_string (words->data);
ibus_lookup_table_append_candidate (priv->lookup_table, text);
words = words->next;
i++;
}
return TRUE;
}
return FALSE;
}
static int
compare_seq_index (const void *key, const void *value)
{
const guint16 *keysyms = key;
const guint16 *seq = value;
if (keysyms[0] < seq[0])
return -1;
else if (keysyms[0] > seq[0])
return 1;
return 0;
}
static int
compare_seq (const void *key, const void *value)
{
int i = 0;
const guint16 *keysyms = key;
const guint16 *seq = value;
while (keysyms[i]) {
if (keysyms[i] < seq[i])
return -1;
else if (keysyms[i] > seq[i])
return 1;
i++;
}
return 0;
}
static gboolean
check_table (IBusEngineSimple *simple,
const IBusComposeTable *table,
gint n_compose)
{
// g_debug("check_table");
IBusEngineSimplePrivate *priv = simple->priv;
gint row_stride = table->max_seq_len + 2;
guint16 *seq;
g_assert (IBUS_IS_ENGINE_SIMPLE (simple));
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
if (n_compose > table->max_seq_len)
return FALSE;
seq = bsearch (priv->compose_buffer,
table->data, table->n_seqs,
sizeof (guint16) * row_stride,
compare_seq);
if (seq == NULL)
return FALSE;
guint16 *prev_seq;
/* Back up to the first sequence that matches to make sure
* we find the exact match if their is one.
*/
while (seq > table->data) {
prev_seq = seq - row_stride;
if (compare_seq (priv->compose_buffer, prev_seq) != 0) {
break;
}
seq = prev_seq;
}
/* complete sequence */
if (n_compose == table->max_seq_len || seq[n_compose] == 0) {
guint16 *next_seq;
gunichar value =
0x10000 * seq[table->max_seq_len] + seq[table->max_seq_len + 1];
/* We found a tentative match. See if there are any longer
* sequences containing this subsequence
*/
next_seq = seq + row_stride;
if (next_seq < table->data + row_stride * table->n_seqs) {
if (compare_seq (priv->compose_buffer, next_seq) == 0) {
priv->tentative_match = value;
priv->tentative_match_len = n_compose;
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
}
ibus_engine_simple_commit_char (simple, value);
priv->compose_buffer[0] = 0;
ibus_engine_simple_update_preedit_text (simple);
// g_debug ("U+%04X\n", value);
}
return TRUE;
}
gboolean
ibus_check_compact_table (const IBusComposeTableCompact *table,
guint16 *compose_buffer,
gint n_compose,
gboolean *compose_finish,
gunichar *output_char)
{
gint row_stride;
guint16 *seq_index;
guint16 *seq;
gint i;
if (compose_finish)
*compose_finish = FALSE;
if (output_char)
*output_char = 0;
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
/* Will never match, if the sequence in the compose buffer is longer
* than the sequences in the table. Further, compare_seq (key, val)
* will overrun val if key is longer than val. */
if (n_compose > table->max_seq_len)
return FALSE;
// g_debug ("check_compact_table(n_compose=%d) [%04x, %04x, %04x, %04x]",
// n_compose,
// compose_buffer[0],
// compose_buffer[1],
// compose_buffer[2],
// compose_buffer[3]);
seq_index = bsearch (compose_buffer,
table->data,
table->n_index_size,
sizeof (guint16) * table->n_index_stride,
compare_seq_index);
if (seq_index == NULL) {
// g_debug ("compact: no\n");
return FALSE;
}
if (n_compose == 1) {
// g_debug ("compact: yes\n");
return TRUE;
}
// g_debug ("compact: %04x ", *seq_index);
seq = NULL;
for (i = n_compose - 1; i < table->max_seq_len; i++) {
row_stride = i + 1;
if (seq_index[i + 1] - seq_index[i] > 0) {
seq = bsearch (compose_buffer + 1,
table->data + seq_index[i],
(seq_index[i + 1] - seq_index[i]) / row_stride,
sizeof (guint16) * row_stride,
compare_seq);
// g_debug ("seq = %p", seq);
if (seq) {
if (i == n_compose - 1)
break;
else
return TRUE;
}
}
}
if (!seq) {
// g_debug ("no\n");
return FALSE;
}
else {
if (compose_finish)
*compose_finish = TRUE;
if (output_char)
*output_char = seq[row_stride - 1];
// g_debug ("U+%04X\n", value);
return TRUE;
}
}
/* Checks if a keysym is a dead key. Dead key keysym values are defined in
* ../gdk/gdkkeysyms.h and the first is GDK_KEY_dead_grave. As X.Org is updated,
* more dead keys are added and we need to update the upper limit.
* Currently, the upper limit is GDK_KEY_dead_dasia+1. The +1 has to do with
* a temporary issue in the X.Org header files.
* In future versions it will be just the keysym (no +1).
*/
#define IS_DEAD_KEY(k) \
((k) >= IBUS_KEY_dead_grave && (k) <= (IBUS_KEY_dead_dasia + 1))
/* This function receives a sequence of Unicode characters and tries to
* normalize it (NFC). We check for the case the the resulting string
* has length 1 (single character).
* NFC normalisation normally rearranges diacritic marks, unless these
* belong to the same Canonical Combining Class.
* If they belong to the same canonical combining class, we produce all
* permutations of the diacritic marks, then attempt to normalize.
*/
static gboolean
check_normalize_nfc (gunichar* combination_buffer, gint n_compose)
{
gunichar combination_buffer_temp[IBUS_MAX_COMPOSE_LEN];
gchar *combination_utf8_temp = NULL;
gchar *nfc_temp = NULL;
gint n_combinations;
gunichar temp_swap;
gint i;
n_combinations = 1;
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
for (i = 1; i < n_compose; i++ )
n_combinations *= i;
/* Xorg reuses dead_tilde for the perispomeni diacritic mark.
* We check if base character belongs to Greek Unicode block,
* and if so, we replace tilde with perispomeni. */
if (combination_buffer[0] >= 0x390 && combination_buffer[0] <= 0x3FF) {
for (i = 1; i < n_compose; i++ )
if (combination_buffer[i] == 0x303)
combination_buffer[i] = 0x342;
}
memcpy (combination_buffer_temp,
combination_buffer,
IBUS_MAX_COMPOSE_LEN * sizeof (gunichar) );
for (i = 0; i < n_combinations; i++ ) {
g_unicode_canonical_ordering (combination_buffer_temp, n_compose);
combination_utf8_temp = g_ucs4_to_utf8 (combination_buffer_temp, -1, NULL, NULL, NULL);
nfc_temp = g_utf8_normalize (combination_utf8_temp, -1, G_NORMALIZE_NFC);
if (g_utf8_strlen (nfc_temp, -1) == 1) {
memcpy (combination_buffer,
combination_buffer_temp,
IBUS_MAX_COMPOSE_LEN * sizeof (gunichar) );
g_free (combination_utf8_temp);
g_free (nfc_temp);
return TRUE;
}
g_free (combination_utf8_temp);
g_free (nfc_temp);
if (n_compose > 2) {
gint j = i % (n_compose - 1) + 1;
gint k = (i+1) % (n_compose - 1) + 1;
if (j >= IBUS_MAX_COMPOSE_LEN) {
g_warning ("j >= IBUS_MAX_COMPOSE_LEN for " \
"combination_buffer_temp");
break;
}
if (k >= IBUS_MAX_COMPOSE_LEN) {
g_warning ("k >= IBUS_MAX_COMPOSE_LEN for " \
"combination_buffer_temp");
break;
}
temp_swap = combination_buffer_temp[j];
combination_buffer_temp[j] = combination_buffer_temp[k];
combination_buffer_temp[k] = temp_swap;
}
else
break;
}
return FALSE;
}
gboolean
ibus_check_algorithmically (const guint16 *compose_buffer,
gint n_compose,
gunichar *output_char)
{
gint i;
gunichar combination_buffer[IBUS_MAX_COMPOSE_LEN];
gchar *combination_utf8, *nfc;
if (output_char)
*output_char = 0;
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
if (n_compose >= IBUS_MAX_COMPOSE_LEN)
return FALSE;
for (i = 0; i < n_compose && IS_DEAD_KEY (compose_buffer[i]); i++)
;
if (i == n_compose)
return TRUE;
if (i > 0 && i == n_compose - 1) {
combination_buffer[0] = ibus_keyval_to_unicode (compose_buffer[i]);
combination_buffer[n_compose] = 0;
i--;
while (i >= 0) {
combination_buffer[i+1] = ibus_keysym_to_unicode (compose_buffer[i],
TRUE);
if (!combination_buffer[i+1]) {
combination_buffer[i+1] =
ibus_keyval_to_unicode (compose_buffer[i]);
}
i--;
}
/* If the buffer normalizes to a single character,
* then modify the order of combination_buffer accordingly, if necessary,
* and return TRUE.
*/
if (check_normalize_nfc (combination_buffer, n_compose)) {
combination_utf8 = g_ucs4_to_utf8 (combination_buffer, -1, NULL, NULL, NULL);
nfc = g_utf8_normalize (combination_utf8, -1, G_NORMALIZE_NFC);
if (output_char)
*output_char = g_utf8_get_char (nfc);
g_free (combination_utf8);
g_free (nfc);
return TRUE;
}
}
return FALSE;
}
static gboolean
no_sequence_matches (IBusEngineSimple *simple,
gint n_compose,
guint keyval,
guint keycode,
guint modifiers)
{
IBusEngineSimplePrivate *priv = simple->priv;
gunichar ch;
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
/* No compose sequences found, check first if we have a partial
* match pending.
*/
if (priv->tentative_match) {
gint len = priv->tentative_match_len;
int i;
ibus_engine_simple_commit_char (simple, priv->tentative_match);
priv->compose_buffer[0] = 0;
ibus_engine_simple_update_preedit_text (simple);
for (i=0; i < n_compose - len - 1; i++) {
ibus_engine_simple_process_key_event (
(IBusEngine *)simple,
priv->compose_buffer[len + i],
0, 0);
}
return ibus_engine_simple_process_key_event (
(IBusEngine *)simple, keyval, keycode, modifiers);
} else if (priv->tentative_emoji && *priv->tentative_emoji) {
ibus_engine_simple_commit_str (simple, priv->tentative_emoji);
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->compose_buffer[0] = 0;
} else {
priv->compose_buffer[0] = 0;
if (n_compose > 1) {
/* Invalid sequence */
// FIXME beep_window (event->window);
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
ibus_engine_simple_update_preedit_text (simple);
ch = ibus_keyval_to_unicode (keyval);
/* IBUS_CHANGE: RH#769133
* Since we use ibus xkb engines as the disable state,
* do not commit the characters locally without in_hex_sequence. */
if (ch != 0 && !g_unichar_iscntrl (ch) &&
priv->in_hex_sequence) {
return TRUE;
} else {
return FALSE;
}
}
return FALSE;
}
static gboolean
is_hex_keyval (guint keyval)
{
gunichar ch = ibus_keyval_to_unicode (keyval);
return g_unichar_isxdigit (ch);
}
static gboolean
is_graph_keyval (guint keyval)
{
gunichar ch = ibus_keyval_to_unicode (keyval);
return g_unichar_isgraph (ch);
}
static void
ibus_engine_simple_update_lookup_and_aux_table (IBusEngineSimple *simple)
{
IBusEngineSimplePrivate *priv;
guint index, candidates;
gchar *aux_label = NULL;
IBusText *text = NULL;
g_return_if_fail (IBUS_IS_ENGINE_SIMPLE (simple));
priv = simple->priv;
index = ibus_lookup_table_get_cursor_pos (priv->lookup_table) + 1;
candidates = ibus_lookup_table_get_number_of_candidates(priv->lookup_table);
aux_label = g_strdup_printf ("(%u / %u)", index, candidates);
text = ibus_text_new_from_string (aux_label);
g_free (aux_label);
ibus_engine_update_auxiliary_text (IBUS_ENGINE (simple),
text,
priv->lookup_table_visible);
ibus_engine_update_lookup_table (IBUS_ENGINE (simple),
priv->lookup_table,
priv->lookup_table_visible);
}
static gboolean
ibus_engine_simple_if_in_range_of_lookup_table (IBusEngineSimple *simple,
guint keyval)
{
IBusEngineSimplePrivate *priv;
int index, candidates, cursor_pos, cursor_in_page, page_size;
priv = simple->priv;
if (priv->lookup_table == NULL || !priv->lookup_table_visible)
return FALSE;
if (keyval < IBUS_KEY_0 || keyval > IBUS_KEY_9)
return FALSE;
if (keyval == IBUS_KEY_0)
keyval = IBUS_KEY_9 + 1;
index = keyval - IBUS_KEY_1;
candidates =
ibus_lookup_table_get_number_of_candidates (priv->lookup_table);
cursor_pos = ibus_lookup_table_get_cursor_pos (priv->lookup_table);
cursor_in_page = ibus_lookup_table_get_cursor_in_page (priv->lookup_table);
page_size = ibus_lookup_table_get_page_size (priv->lookup_table);
if (index > ((candidates - (cursor_pos - cursor_in_page)) % page_size))
return FALSE;
return TRUE;
}
static void
ibus_engine_simple_set_number_on_lookup_table (IBusEngineSimple *simple,
guint keyval,
int n_compose)
{
IBusEngineSimplePrivate *priv;
int index, cursor_pos, cursor_in_page, real_index;
priv = simple->priv;
if (keyval == IBUS_KEY_0)
keyval = IBUS_KEY_9 + 1;
index = keyval - IBUS_KEY_1;
cursor_pos = ibus_lookup_table_get_cursor_pos (priv->lookup_table);
cursor_in_page = ibus_lookup_table_get_cursor_in_page (priv->lookup_table);
real_index = cursor_pos - cursor_in_page + index;
ibus_lookup_table_set_cursor_pos (priv->lookup_table, real_index);
check_emoji_table (simple, n_compose, real_index);
priv->lookup_table_visible = FALSE;
ibus_engine_simple_update_lookup_and_aux_table (simple);
if (priv->tentative_emoji && *priv->tentative_emoji) {
ibus_engine_simple_commit_str (simple, priv->tentative_emoji);
priv->compose_buffer[0] = 0;
} else {
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->in_emoji_sequence = FALSE;
priv->compose_buffer[0] = 0;
}
ibus_engine_simple_update_preedit_text (simple);
}
static gboolean
ibus_engine_simple_process_key_event (IBusEngine *engine,
guint keyval,
guint keycode,
guint modifiers)
{
IBusEngineSimple *simple = (IBusEngineSimple *)engine;
IBusEngineSimplePrivate *priv = simple->priv;
gint n_compose = 0;
gboolean have_hex_mods;
gboolean is_hex_start = FALSE;
gboolean is_emoji_start = FALSE;
gboolean is_hex_end;
gboolean is_space;
gboolean is_backspace;
gboolean is_escape;
guint hex_keyval;
guint printable_keyval;
gint i;
gboolean compose_finish;
gunichar output_char;
while (n_compose < EMOJI_SOURCE_LEN && priv->compose_buffer[n_compose] != 0)
n_compose++;
if (n_compose >= EMOJI_SOURCE_LEN) {
g_warning ("copmose table buffer is full.");
n_compose = EMOJI_SOURCE_LEN - 1;
}
if (modifiers & IBUS_RELEASE_MASK) {
if (priv->in_hex_sequence &&
(keyval == IBUS_KEY_Control_L || keyval == IBUS_KEY_Control_R ||
keyval == IBUS_KEY_Shift_L || keyval == IBUS_KEY_Shift_R)) {
if (priv->tentative_match &&
g_unichar_validate (priv->tentative_match)) {
ibus_engine_simple_commit_char (simple, priv->tentative_match);
ibus_engine_simple_update_preedit_text (simple);
} else if (n_compose == 0) {
priv->modifiers_dropped = TRUE;
} else {
/* invalid hex sequence */
/* FIXME beep_window (event->window); */
priv->tentative_match = 0;
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->in_hex_sequence = FALSE;
priv->in_emoji_sequence = FALSE;
priv->compose_buffer[0] = 0;
ibus_engine_simple_update_preedit_text (simple);
}
return TRUE;
}
/* Handle Shift + Space */
else if (priv->in_emoji_sequence &&
(keyval == IBUS_KEY_Control_L || keyval == IBUS_KEY_Control_R)) {
if (priv->tentative_emoji && *priv->tentative_emoji) {
ibus_engine_simple_commit_str (simple, priv->tentative_emoji);
g_clear_pointer (&priv->tentative_emoji, g_free);
} else if (n_compose == 0) {
priv->modifiers_dropped = TRUE;
} else {
/* invalid hex sequence */
/* FIXME beep_window (event->window); */
priv->tentative_match = 0;
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->in_hex_sequence = FALSE;
priv->in_emoji_sequence = FALSE;
priv->compose_buffer[0] = 0;
ibus_engine_simple_update_preedit_text (simple);
}
}
else
return FALSE;
}
/* Ignore modifier key presses */
for (i = 0; i < G_N_ELEMENTS (IBUS_COMPOSE_IGNORE_KEYLIST); i++)
if (keyval == IBUS_COMPOSE_IGNORE_KEYLIST[i])
return FALSE;
if ((priv->in_hex_sequence || priv->in_emoji_sequence)
&& priv->modifiers_dropped) {
have_hex_mods = TRUE;
} else {
have_hex_mods = (modifiers & (HEX_MOD_MASK)) == HEX_MOD_MASK;
}
is_hex_start = (keyval == IBUS_KEY_U) && priv->hex_mode_enabled;
is_hex_end = (keyval == IBUS_KEY_space ||
keyval == IBUS_KEY_KP_Space ||
keyval == IBUS_KEY_Return ||
keyval == IBUS_KEY_ISO_Enter ||
keyval == IBUS_KEY_KP_Enter);
is_space = (keyval == IBUS_KEY_space || keyval == IBUS_KEY_KP_Space);
is_backspace = keyval == IBUS_KEY_BackSpace;
is_escape = keyval == IBUS_KEY_Escape;
hex_keyval = is_hex_keyval (keyval) ? keyval : 0;
printable_keyval = is_graph_keyval (keyval) ? keyval : 0;
/* gtkimcontextsimple causes a buffer overflow in priv->compose_buffer.
* Add the check code here.
*/
if ((n_compose >= IBUS_MAX_COMPOSE_LEN && priv->in_hex_sequence) ||
(n_compose >= EMOJI_SOURCE_LEN && priv->in_emoji_sequence)) {
if (is_backspace) {
priv->compose_buffer[--n_compose] = 0;
}
else if (is_hex_end) {
/* invalid hex sequence */
// beep_window (event->window);
priv->tentative_match = 0;
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->in_hex_sequence = FALSE;
priv->in_emoji_sequence = FALSE;
priv->compose_buffer[0] = 0;
}
else if (is_escape) {
ibus_engine_simple_reset (engine);
if (priv->lookup_table != NULL && priv->lookup_table_visible) {
priv->lookup_table_visible = FALSE;
ibus_engine_simple_update_lookup_and_aux_table (simple);
}
return TRUE;
}
if (have_hex_mods)
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
/* If we are already in a non-hex sequence, or
* this keystroke is not hex modifiers + hex digit, don't filter
* key events with accelerator modifiers held down. We only treat
* Control and Alt as accel modifiers here, since Super, Hyper and
* Meta are often co-located with Mode_Switch, Multi_Key or
* ISO_Level3_Switch.
*/
if (!have_hex_mods ||
(n_compose > 0 && !priv->in_hex_sequence && !priv->in_emoji_sequence) ||
(n_compose == 0 && !priv->in_hex_sequence && !is_hex_start &&
!priv->in_emoji_sequence && !is_emoji_start) ||
(priv->in_hex_sequence && !hex_keyval &&
!is_hex_start && !is_hex_end && !is_escape && !is_backspace) ||
(priv->in_emoji_sequence && !printable_keyval &&
!is_emoji_start && !is_hex_end && !is_escape && !is_backspace)) {
if (modifiers & (IBUS_MOD1_MASK | IBUS_CONTROL_MASK) ||
((priv->in_hex_sequence || priv->in_emoji_sequence) &&
priv->modifiers_dropped &&
(keyval == IBUS_KEY_Return ||
keyval == IBUS_KEY_ISO_Enter ||
keyval == IBUS_KEY_KP_Enter))) {
return FALSE;
}
}
/* Handle backspace */
if (priv->in_hex_sequence && have_hex_mods && is_backspace) {
if (n_compose > 0) {
n_compose--;
priv->compose_buffer[n_compose] = 0;
check_hex (simple, n_compose);
} else {
priv->in_hex_sequence = FALSE;
}
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
if (priv->in_emoji_sequence && have_hex_mods && is_backspace) {
if (n_compose > 0) {
n_compose--;
priv->compose_buffer[n_compose] = 0;
check_emoji_table (simple, n_compose, -1);
ibus_engine_simple_update_lookup_and_aux_table (simple);
} else {
priv->in_emoji_sequence = FALSE;
}
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
if (!priv->in_hex_sequence && !priv->in_emoji_sequence && is_backspace) {
if (n_compose > 0) {
n_compose--;
priv->compose_buffer[n_compose] = 0;
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
}
/* Check for hex sequence restart */
if (priv->in_hex_sequence && have_hex_mods && is_hex_start) {
if (priv->tentative_match &&
g_unichar_validate (priv->tentative_match)) {
ibus_engine_simple_commit_char (simple, priv->tentative_match);
ibus_engine_simple_update_preedit_text (simple);
}
else {
/* invalid hex sequence */
if (n_compose > 0) {
// FIXME beep_window (event->window);
priv->tentative_match = 0;
priv->in_hex_sequence = FALSE;
priv->compose_buffer[0] = 0;
}
}
}
if (priv->in_emoji_sequence && have_hex_mods && is_emoji_start) {
if (priv->tentative_emoji && *priv->tentative_emoji) {
ibus_engine_simple_commit_str (simple, priv->tentative_emoji);
g_clear_pointer (&priv->tentative_emoji, g_free);
}
else {
if (n_compose > 0) {
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->in_emoji_sequence = FALSE;
priv->compose_buffer[0] = 0;
}
}
}
/* Check for hex sequence start */
if (!priv->in_hex_sequence && !priv->in_emoji_sequence &&
have_hex_mods && is_hex_start) {
priv->compose_buffer[0] = 0;
priv->in_hex_sequence = TRUE;
priv->in_emoji_sequence = FALSE;
priv->modifiers_dropped = FALSE;
priv->tentative_match = 0;
g_clear_pointer (&priv->tentative_emoji, g_free);
// g_debug ("Start HEX MODE");
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
} else if (!priv->in_hex_sequence && !priv->in_emoji_sequence &&
have_hex_mods && is_emoji_start) {
priv->compose_buffer[0] = 0;
priv->in_hex_sequence = FALSE;
priv->in_emoji_sequence = TRUE;
priv->modifiers_dropped = FALSE;
priv->tentative_match = 0;
g_clear_pointer (&priv->tentative_emoji, g_free);
// g_debug ("Start HEX MODE");
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
/* Then, check for compose sequences */
if (priv->in_hex_sequence) {
if (hex_keyval) {
SET_COMPOSE_BUFFER_ELEMENT_NEXT (priv->compose_buffer,
n_compose,
hex_keyval);
} else if (is_escape) {
// FIXME
ibus_engine_simple_reset (engine);
return TRUE;
} else if (!is_hex_end) {
// FIXME
/* non-hex character in hex sequence */
// beep_window (event->window);
return TRUE;
}
} else if (priv->in_emoji_sequence) {
if (printable_keyval) {
if (!ibus_engine_simple_if_in_range_of_lookup_table (simple,
printable_keyval)) {
/* digit keyval can be an index on the current lookup table
* but it also can be a part of an emoji annotation.
* E.g. "1" and "2" are indexes of emoji "1".
* "100" is an annotation of the emoji "100".
*/
SET_COMPOSE_BUFFER_ELEMENT_NEXT (priv->compose_buffer,
n_compose,
printable_keyval);
}
}
else if (is_space && (modifiers & IBUS_SHIFT_MASK)) {
SET_COMPOSE_BUFFER_ELEMENT_NEXT (priv->compose_buffer,
n_compose,
IBUS_KEY_space);
}
else if (is_escape) {
ibus_engine_simple_reset (engine);
if (priv->lookup_table != NULL && priv->lookup_table_visible) {
priv->lookup_table_visible = FALSE;
ibus_engine_simple_update_lookup_and_aux_table (simple);
}
return TRUE;
}
} else {
if (is_escape) {
if (n_compose > 0) {
ibus_engine_simple_reset (engine);
return TRUE;
}
}
SET_COMPOSE_BUFFER_ELEMENT_NEXT (priv->compose_buffer,
n_compose,
keyval);
}
SET_COMPOSE_BUFFER_ELEMENT_END (priv->compose_buffer,
n_compose,
0);
if (priv->in_hex_sequence) {
/* If the modifiers are still held down, consider the sequence again */
if (have_hex_mods) {
/* space or return ends the sequence, and we eat the key */
if (n_compose > 0 && is_hex_end) {
if (priv->tentative_match &&
g_unichar_validate (priv->tentative_match)) {
ibus_engine_simple_commit_char (simple,
priv->tentative_match);
priv->compose_buffer[0] = 0;
ibus_engine_simple_update_preedit_text (simple);
} else {
// FIXME
/* invalid hex sequence */
// beep_window (event->window);
priv->tentative_match = 0;
priv->in_hex_sequence = FALSE;
priv->compose_buffer[0] = 0;
}
}
else if (!check_hex (simple, n_compose))
// FIXME
// beep_window (event->window);
;
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
}
else if (priv->in_emoji_sequence) {
if (have_hex_mods && n_compose > 0) {
gboolean update_lookup_table = FALSE;
if (priv->lookup_table_visible) {
switch (keyval) {
case IBUS_KEY_space:
case IBUS_KEY_KP_Space:
if ((modifiers & IBUS_SHIFT_MASK) == 0) {
ibus_lookup_table_cursor_down (priv->lookup_table);
update_lookup_table = TRUE;
}
break;
case IBUS_KEY_Down:
ibus_lookup_table_cursor_down (priv->lookup_table);
update_lookup_table = TRUE;
break;
case IBUS_KEY_Up:
ibus_lookup_table_cursor_up (priv->lookup_table);
update_lookup_table = TRUE;
break;
case IBUS_KEY_Page_Down:
ibus_lookup_table_page_down (priv->lookup_table);
update_lookup_table = TRUE;
break;
case IBUS_KEY_Page_Up:
ibus_lookup_table_page_up (priv->lookup_table);
update_lookup_table = TRUE;
break;
default:;
}
}
if (!update_lookup_table) {
if (ibus_engine_simple_if_in_range_of_lookup_table (simple,
keyval)) {
ibus_engine_simple_set_number_on_lookup_table (
simple,
keyval,
n_compose);
return TRUE;
}
else if (is_hex_end && !is_space) {
if (priv->lookup_table) {
int index = (int) ibus_lookup_table_get_cursor_pos (
priv->lookup_table);
check_emoji_table (simple, n_compose, index);
priv->lookup_table_visible = FALSE;
update_lookup_table = TRUE;
}
} else if (check_emoji_table (simple, n_compose, -1)) {
update_lookup_table = TRUE;
} else {
priv->lookup_table_visible = FALSE;
update_lookup_table = TRUE;
}
}
if (update_lookup_table)
ibus_engine_simple_update_lookup_and_aux_table (simple);
if (is_hex_end && !is_space) {
if (priv->tentative_emoji && *priv->tentative_emoji) {
ibus_engine_simple_commit_str (simple,
priv->tentative_emoji);
priv->compose_buffer[0] = 0;
} else {
g_clear_pointer (&priv->tentative_emoji, g_free);
priv->in_emoji_sequence = FALSE;
priv->compose_buffer[0] = 0;
}
}
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
}
else {
GSList *list = global_tables;
while (list) {
if (check_table (simple,
(IBusComposeTable *)list->data,
n_compose)) {
// g_debug("check_table returns true");
return TRUE;
}
list = list->next;
}
if (ibus_check_compact_table (&ibus_compose_table_compact,
priv->compose_buffer,
n_compose,
&compose_finish,
&output_char)) {
if (compose_finish) {
ibus_engine_simple_commit_char (simple, output_char);
priv->compose_buffer[0] = 0;
}
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
if (ibus_check_algorithmically (priv->compose_buffer,
n_compose,
&output_char)) {
if (output_char) {
ibus_engine_simple_commit_char (simple, output_char);
priv->compose_buffer[0] = 0;
}
ibus_engine_simple_update_preedit_text (simple);
return TRUE;
}
}
/* The current compose_buffer doesn't match anything */
return no_sequence_matches (simple, n_compose, keyval, keycode, modifiers);
}
static void
ibus_engine_simple_page_down (IBusEngine *engine)
{
IBusEngineSimple *simple = (IBusEngineSimple *)engine;
IBusEngineSimplePrivate *priv = simple->priv;
if (priv->lookup_table == NULL)
return;
ibus_lookup_table_page_down (priv->lookup_table);
ibus_engine_simple_update_lookup_and_aux_table (simple);
}
static void
ibus_engine_simple_page_up (IBusEngine *engine)
{
IBusEngineSimple *simple = (IBusEngineSimple *)engine;
IBusEngineSimplePrivate *priv = simple->priv;
if (priv->lookup_table == NULL)
return;
ibus_lookup_table_page_up (priv->lookup_table);
ibus_engine_simple_update_lookup_and_aux_table (simple);
}
static void
ibus_engine_simple_candidate_clicked (IBusEngine *engine,
guint index,
guint button,
guint state)
{
IBusEngineSimple *simple = (IBusEngineSimple *)engine;
IBusEngineSimplePrivate *priv = simple->priv;
guint keyval;
gint n_compose = 0;
if (priv->lookup_table == NULL || !priv->lookup_table_visible)
return;
if (index == 9)
keyval = IBUS_KEY_0;
else
keyval = IBUS_KEY_1 + index;
while (priv->compose_buffer[n_compose] != 0)
n_compose++;
CHECK_COMPOSE_BUFFER_LENGTH (n_compose);
ibus_engine_simple_set_number_on_lookup_table (simple, keyval, n_compose);
}
void
ibus_engine_simple_add_table (IBusEngineSimple *simple,
const guint16 *data,
gint max_seq_len,
gint n_seqs)
{
g_return_if_fail (IBUS_IS_ENGINE_SIMPLE (simple));
global_tables = ibus_compose_table_list_add_array (global_tables,
data,
max_seq_len,
n_seqs);
}
gboolean
ibus_engine_simple_add_table_by_locale (IBusEngineSimple *simple,
const gchar *locale)
{
/* Now ibus_engine_simple_add_compose_file() always returns TRUE. */
gboolean retval = TRUE;
gchar *path = NULL;
const gchar *home;
const gchar *_locale;
gchar **langs = NULL;
gchar **lang = NULL;
gchar * const sys_langs[] = { "el_gr", "fi_fi", "pt_br", NULL };
gchar * const *sys_lang = NULL;
if (locale == NULL) {
path = g_build_filename (g_get_user_config_dir (),
"ibus", "Compose", NULL);
if (g_file_test (path, G_FILE_TEST_EXISTS)) {
ibus_engine_simple_add_compose_file (simple, path);
g_free (path);
return retval;
}
g_free (path);
path = NULL;
path = g_build_filename (g_get_user_config_dir (),
"gtk-3.0", "Compose", NULL);
if (g_file_test (path, G_FILE_TEST_EXISTS)) {
ibus_engine_simple_add_compose_file (simple, path);
g_free (path);
return retval;
}
g_free (path);
path = NULL;
home = g_get_home_dir ();
if (home == NULL)
return retval;
path = g_build_filename (home, ".XCompose", NULL);
if (g_file_test (path, G_FILE_TEST_EXISTS)) {
ibus_engine_simple_add_compose_file (simple, path);
g_free (path);
return retval;
}
g_free (path);
path = NULL;
_locale = g_getenv ("LC_CTYPE");
if (_locale == NULL)
_locale = g_getenv ("LANG");
if (_locale == NULL)
_locale = "C";
/* FIXME: https://bugzilla.gnome.org/show_bug.cgi?id=751826 */
langs = g_get_locale_variants (_locale);
for (lang = langs; *lang; lang++) {
if (g_str_has_prefix (*lang, "en_US"))
break;
if (**lang == 'C')
break;
/* Other languages just include en_us compose table. */
for (sys_lang = sys_langs; *sys_lang; sys_lang++) {
if (g_ascii_strncasecmp (*lang, *sys_lang,
strlen (*sys_lang)) == 0) {
path = g_build_filename (X11_DATADIR,
*lang, "Compose", NULL);
break;
}
}
if (path == NULL)
continue;
if (g_file_test (path, G_FILE_TEST_EXISTS))
break;
g_free (path);
path = NULL;
}
g_strfreev (langs);
if (path != NULL)
ibus_engine_simple_add_compose_file (simple, path);
g_free (path);
path = NULL;
} else {
path = g_build_filename (X11_DATADIR, locale, "Compose", NULL);
do {
if (g_file_test (path, G_FILE_TEST_EXISTS))
break;
g_free (path);
path = NULL;
} while (0);
if (path == NULL)
return retval;
ibus_engine_simple_add_compose_file (simple, path);
}
return retval;
}
gboolean
ibus_engine_simple_add_compose_file (IBusEngineSimple *simple,
const gchar *compose_file)
{
g_return_val_if_fail (IBUS_IS_ENGINE_SIMPLE (simple), TRUE);
global_tables = ibus_compose_table_list_add_file (global_tables,
compose_file);
return TRUE;
}