void InputContext::review_im(const char *engine)
{
char *locale, *prev_engine;
const char *client_locale, *engine_locales;
const char *encoding;
prev_engine = mEngineName;
mEngineName = strdup(engine);
encoding = mXic->get_encoding();
client_locale = mXic->get_lang_region();
engine_locales = compose_localenames_from_im_lang(get_im_lang_from_engine(engine));
if (!strcmp(encoding, "UTF-8")) {
if (is_locale_included(engine_locales, client_locale))
locale = strdup(client_locale);
else
locale = get_prefered_locale(engine_locales);
locale = (char *)realloc(locale, strlen(locale) + strlen(".UTF-8") + 1);
strcat(locale, ".UTF-8");
setlocale(LC_CTYPE, locale);
free(mLocaleName);
mLocaleName = locale;
} else {
if (!is_locale_included(engine_locales, client_locale)) {
clear();
uim_switch_im(mUc, prev_engine);
free(mEngineName);
mEngineName = strdup(prev_engine);
}
}
free(prev_engine);
}
void
InputContext::changeContext(const char *engine)
{
const char *encoding, *im_lang;
if (!strcmp(mEngineName, engine))
return;
encoding = mXic->get_encoding();
im_lang = get_im_lang_from_engine(engine);
// Don't change im unless encoding matches for clients with legacy locales.
if (strcmp(encoding, "UTF-8")) {
const char *client_locale = mXic->get_lang_region();
const char *engine_locales = compose_localenames_from_im_lang(im_lang);
if (!is_locale_included(engine_locales, client_locale))
return;
}
clear();
uim_release_context(mUc);
createUimContext(engine); // mUc, mEngineName, and locale will be set here.
if (mConvdisp) {
mConvdisp->set_im_lang(get_im_lang_from_engine(mEngineName));
mConvdisp->set_locale_name(mLocaleName);
}
}
static const char *
get_valid_locales(const char *locales)
{
char *valid_locales = NULL;
char *validated;
char *locale;
char *tmp, *tmpp;
int len = 0;
tmp = tmpp = strdup(locales);
char *orig_locale = strdup(setlocale(LC_CTYPE, NULL));
// locales is separated with ':'
while ((locale = strsep(&tmpp, ":")) != NULL) {
if (setlocale(LC_CTYPE, locale) != NULL) {
if (asprintf(&validated, "%s:", locale) == -1) {
free(validated);
continue;
}
len += static_cast<int>(strlen(validated));
if (valid_locales) {
valid_locales = (char *)realloc(valid_locales, len + 1);
strcat(valid_locales, validated);
} else
valid_locales = strdup(validated);
free(validated);
} else {
// retry with supplemental encodings
int i;
for (i = 0; locale_map[i].localename; i++) {
if (is_locale_included(locale_map[i].localename, locale))
break;
}
if (locale_map[i].supplemental_encoding) {
char *encs, *encsp, *encoding;
encs = encsp = strdup(locale_map[i].supplemental_encoding);
while ((encoding = strsep(&encsp, ":")) != NULL) {
char *test_locale = strdup(locale);
test_locale = (char *)realloc(test_locale, strlen(test_locale) + strlen(encoding) + 2);
strcat(test_locale, ".");
strcat(test_locale, encoding);
if (setlocale(LC_CTYPE, test_locale) != NULL) {
if (asprintf(&validated, "%s:", locale) == -1) {
free(validated);
continue;
}
len += static_cast<int>(strlen(validated));
if (valid_locales) {
valid_locales = (char *)realloc(valid_locales, len + 1);
strcat(valid_locales, validated);
} else
valid_locales = strdup(validated);
free(validated);
free(test_locale);
break;
} else
free(test_locale);
}
free(encs);
}
}
}
if (valid_locales)
valid_locales[len - 1] = '\0'; // remove trailing ':'
else
valid_locales = strdup(""); // There is no valid locale or im-lang is
// "". These im will be used with
// en_US.UTF-8.
setlocale(LC_CTYPE, orig_locale);
free(orig_locale);
free(tmp);
return valid_locales;
}
void
InputContext::createUimContext(const char *engine)
{
char *locale;
const char *client_locale, *engine_locales;
const char *encoding;
const char *real_im;
encoding = mXic->get_encoding();
client_locale = mXic->get_lang_region();
engine_locales = compose_localenames_from_im_lang(get_im_lang_from_engine(engine));
if (!strcmp(encoding, "UTF-8")) {
real_im = engine;
if (is_locale_included(engine_locales, client_locale))
locale = strdup(client_locale);
else {
locale = get_prefered_locale(engine_locales);
}
} else {
// Use default engine for corresponding encoding of the client
// unless encoding matches with selected engine.
if (!is_locale_included(engine_locales, client_locale)) {
const char *test_im = uim_get_default_im_name(client_locale);
const char *test_im_lang = get_im_lang_from_engine(test_im);
const char *test_im_locales = compose_localenames_from_im_lang(test_im_lang);
if (is_locale_included(test_im_locales, client_locale))
real_im = test_im;
else
real_im = uim_get_im_name_for_locale(client_locale);
} else
real_im = engine;
locale = strdup(client_locale);
}
locale = (char *)realloc(locale, strlen(locale) + strlen(encoding) + 2);
strcat(locale, ".");
strcat(locale, encoding);
setlocale(LC_CTYPE, locale);
free(mLocaleName);
mLocaleName = locale;
if (mEngineName != real_im) {
free(mEngineName);
mEngineName = strdup(real_im);
}
uim_context uc = uim_create_context((void *) this, "UTF-8",
NULL, real_im, NULL,
InputContext::commit_cb);
if (uc) {
uim_set_preedit_cb(uc,
InputContext::clear_cb,
InputContext::pushback_cb,
InputContext::update_cb);
uim_set_candidate_selector_cb(uc,
InputContext::candidate_activate_cb,
InputContext::candidate_select_cb,
InputContext::candidate_shift_page_cb,
InputContext::candidate_deactivate_cb);
uim_set_prop_list_update_cb(uc,
InputContext::update_prop_list_cb);
#if 0
uim_set_prop_label_update_cb(uc,
InputContext::update_prop_label_cb);
#endif
uim_set_configuration_changed_cb(uc,
InputContext::configuration_changed_cb);
uim_set_im_switch_request_cb(uc,
InputContext::switch_app_global_im_cb,
InputContext::switch_system_global_im_cb);
#if UIM_XIM_USE_DELAY
uim_set_delay_candidate_selector_cb(uc,
InputContext::candidate_activate_with_delay_cb);
#endif
if (mFocusedContext == this)
uim_prop_list_update(uc);
}
mUc = uc;
}