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rime_engine.c
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rime_engine.c
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#include "rime_config.h"
#include <string.h>
#include <rime_api.h>
#include "rime_engine.h"
#include "rime_settings.h"
// TODO:
#define _(x) (x)
extern RimeApi *rime_api;
typedef struct _IBusRimeEngine IBusRimeEngine;
typedef struct _IBusRimeEngineClass IBusRimeEngineClass;
struct _IBusRimeEngine {
IBusEngine parent;
/* members */
RimeSessionId session_id;
RimeStatus status;
IBusLookupTable* table;
IBusPropList* props;
};
struct _IBusRimeEngineClass {
IBusEngineClass parent;
};
/* functions prototype */
static void ibus_rime_engine_class_init (IBusRimeEngineClass *klass);
static void ibus_rime_engine_init (IBusRimeEngine *rime_engine);
static void ibus_rime_engine_destroy (IBusRimeEngine *rime_engine);
static gboolean ibus_rime_engine_process_key_event (IBusEngine *engine,
guint keyval,
guint keycode,
guint modifiers);
static void ibus_rime_engine_focus_in (IBusEngine *engine);
static void ibus_rime_engine_focus_out (IBusEngine *engine);
static void ibus_rime_engine_reset (IBusEngine *engine);
static void ibus_rime_engine_enable (IBusEngine *engine);
static void ibus_rime_engine_disable (IBusEngine *engine);
static void ibus_engine_set_cursor_location (IBusEngine *engine,
gint x,
gint y,
gint w,
gint h);
static void ibus_rime_engine_set_capabilities (IBusEngine *engine,
guint caps);
static void ibus_rime_engine_page_up (IBusEngine *engine);
static void ibus_rime_engine_page_down (IBusEngine *engine);
static void ibus_rime_engine_cursor_up (IBusEngine *engine);
static void ibus_rime_engine_cursor_down (IBusEngine *engine);
static void ibus_rime_engine_candidate_clicked (IBusEngine *engine,
guint index,
guint button,
guint state);
static void ibus_rime_engine_property_activate (IBusEngine *engine,
const gchar *prop_name,
guint prop_state);
static void ibus_rime_engine_property_show (IBusEngine *engine,
const gchar *prop_name);
static void ibus_rime_engine_property_hide (IBusEngine *engine,
const gchar *prop_name);
static void ibus_rime_engine_update (IBusRimeEngine *rime_engine);
G_DEFINE_TYPE (IBusRimeEngine, ibus_rime_engine, IBUS_TYPE_ENGINE)
static void
ibus_rime_engine_class_init (IBusRimeEngineClass *klass)
{
IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass);
IBusEngineClass *engine_class = IBUS_ENGINE_CLASS (klass);
ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_rime_engine_destroy;
engine_class->process_key_event = ibus_rime_engine_process_key_event;
engine_class->focus_in = ibus_rime_engine_focus_in;
engine_class->focus_out = ibus_rime_engine_focus_out;
engine_class->reset = ibus_rime_engine_reset;
engine_class->enable = ibus_rime_engine_enable;
engine_class->disable = ibus_rime_engine_disable;
engine_class->property_activate = ibus_rime_engine_property_activate;
engine_class->candidate_clicked = ibus_rime_engine_candidate_clicked;
engine_class->page_up = ibus_rime_engine_page_up;
engine_class->page_down = ibus_rime_engine_page_down;
}
static void
ibus_rime_create_session (IBusRimeEngine *rime_engine)
{
rime_engine->session_id = rime_api->create_session();
Bool inline_caret =
g_ibus_rime_settings.embed_preedit_text &&
g_ibus_rime_settings.preedit_style == PREEDIT_STYLE_COMPOSITION &&
g_ibus_rime_settings.cursor_type == CURSOR_TYPE_INSERT;
rime_api->set_option(rime_engine->session_id, "soft_cursor", !inline_caret);
}
static void
ibus_rime_engine_init (IBusRimeEngine *rime_engine)
{
ibus_rime_create_session(rime_engine);
RIME_STRUCT_INIT(RimeStatus, rime_engine->status);
RIME_STRUCT_CLEAR(rime_engine->status);
rime_engine->table = ibus_lookup_table_new(9, 0, TRUE, FALSE);
g_object_ref_sink(rime_engine->table);
rime_engine->props = ibus_prop_list_new();
g_object_ref_sink(rime_engine->props);
IBusProperty* prop;
IBusText* label;
IBusText* tips;
label = ibus_text_new_from_static_string("中文");
tips = ibus_text_new_from_static_string("中 ↔ A");
prop = ibus_property_new("InputMode",
PROP_TYPE_NORMAL,
label,
IBUS_RIME_ICONS_DIR "/zh.png",
tips,
TRUE,
TRUE,
PROP_STATE_UNCHECKED,
NULL);
ibus_prop_list_append(rime_engine->props, prop);
label = ibus_text_new_from_static_string("部署");
tips = ibus_text_new_from_static_string(_("Deploy"));
prop = ibus_property_new("deploy",
PROP_TYPE_NORMAL,
label,
IBUS_RIME_ICONS_DIR "/reload.png",
tips,
TRUE,
TRUE,
PROP_STATE_UNCHECKED,
NULL);
ibus_prop_list_append(rime_engine->props, prop);
label = ibus_text_new_from_static_string("同步");
tips = ibus_text_new_from_static_string(_("Sync data"));
prop = ibus_property_new("sync",
PROP_TYPE_NORMAL,
label,
IBUS_RIME_ICONS_DIR "/sync.png",
tips,
TRUE,
TRUE,
PROP_STATE_UNCHECKED,
NULL);
ibus_prop_list_append(rime_engine->props, prop);
}
static void
ibus_rime_engine_destroy (IBusRimeEngine *rime_engine)
{
if (rime_engine->session_id) {
rime_api->destroy_session(rime_engine->session_id);
rime_engine->session_id = 0;
}
if (rime_engine->status.schema_id) {
g_free(rime_engine->status.schema_id);
}
if (rime_engine->status.schema_name) {
g_free(rime_engine->status.schema_name);
}
RIME_STRUCT_CLEAR(rime_engine->status);
if (rime_engine->table) {
g_object_unref(rime_engine->table);
rime_engine->table = NULL;
}
if (rime_engine->props) {
g_object_unref(rime_engine->props);
rime_engine->props = NULL;
}
((IBusObjectClass *) ibus_rime_engine_parent_class)->destroy(
(IBusObject *)rime_engine);
}
static void
ibus_rime_engine_focus_in (IBusEngine *engine)
{
IBusRimeEngine *rime_engine = (IBusRimeEngine *)engine;
ibus_engine_register_properties(engine, rime_engine->props);
if (!rime_engine->session_id) {
ibus_rime_create_session(rime_engine);
}
ibus_rime_engine_update(rime_engine);
}
static void
ibus_rime_engine_focus_out (IBusEngine *engine)
{
}
static void
ibus_rime_engine_reset (IBusEngine *engine)
{
}
static void
ibus_rime_engine_enable (IBusEngine *engine)
{
}
static void
ibus_rime_engine_disable (IBusEngine *engine)
{
IBusRimeEngine *rime_engine = (IBusRimeEngine *)engine;
if (rime_engine->session_id) {
rime_api->destroy_session(rime_engine->session_id);
rime_engine->session_id = 0;
}
}
static void ibus_rime_update_status(IBusRimeEngine *rime_engine,
RimeStatus *status)
{
if (status &&
rime_engine->status.is_disabled == status->is_disabled &&
rime_engine->status.is_ascii_mode == status->is_ascii_mode &&
rime_engine->status.schema_id && status->schema_id &&
!strcmp(rime_engine->status.schema_id, status->schema_id)) {
// no updates
return;
}
rime_engine->status.is_disabled = status ? status->is_disabled : False;
rime_engine->status.is_ascii_mode = status ? status->is_ascii_mode : False;
if (rime_engine->status.schema_id) {
g_free(rime_engine->status.schema_id);
}
rime_engine->status.schema_id =
status && status->schema_id ? g_strdup(status->schema_id) : NULL;
IBusProperty* prop = ibus_prop_list_get(rime_engine->props, 0);
const gchar* icon;
IBusText* label;
if (prop) {
if (!status || status->is_disabled) {
icon = IBUS_RIME_ICONS_DIR "/disabled.png";
label = ibus_text_new_from_static_string("維護");
}
else if (status->is_ascii_mode) {
icon = IBUS_RIME_ICONS_DIR "/abc.png";
label = ibus_text_new_from_static_string("Abc");
}
else {
icon = IBUS_RIME_ICONS_DIR "/zh.png";
/* schema_name is ".default" in switcher */
if (status->schema_name && status->schema_name[0] != '.') {
label = ibus_text_new_from_string(status->schema_name);
}
else {
label = ibus_text_new_from_static_string("中文");
}
}
if (status && !status->is_disabled && ibus_text_get_length(label) > 0) {
gunichar c = g_utf8_get_char(ibus_text_get_text(label));
IBusText* symbol = ibus_text_new_from_unichar(c);
ibus_property_set_symbol(prop, symbol);
}
ibus_property_set_icon(prop, icon);
ibus_property_set_label(prop, label);
ibus_engine_update_property((IBusEngine *)rime_engine, prop);
}
}
static void ibus_rime_engine_update(IBusRimeEngine *rime_engine)
{
// update properties
RIME_STRUCT(RimeStatus, status);
if (rime_api->get_status(rime_engine->session_id, &status)) {
ibus_rime_update_status(rime_engine, &status);
rime_api->free_status(&status);
}
else {
ibus_rime_update_status(rime_engine, NULL);
}
// commit text
RIME_STRUCT(RimeCommit, commit);
if (rime_api->get_commit(rime_engine->session_id, &commit)) {
IBusText *text;
text = ibus_text_new_from_string(commit.text);
// the text object will be released by ibus
ibus_engine_commit_text((IBusEngine *)rime_engine, text);
rime_api->free_commit(&commit);
}
// begin updating UI
RIME_STRUCT(RimeContext, context);
if (!rime_api->get_context(rime_engine->session_id, &context) ||
context.composition.length == 0) {
ibus_engine_hide_preedit_text((IBusEngine *)rime_engine);
ibus_engine_hide_auxiliary_text((IBusEngine *)rime_engine);
ibus_engine_hide_lookup_table((IBusEngine *)rime_engine);
rime_api->free_context(&context);
return;
}
IBusText* inline_text = NULL;
IBusText* auxiliary_text = NULL;
guint inline_cursor_pos = 0;
int preedit_offset = 0;
const gboolean has_highlighted_span =
(context.composition.sel_start < context.composition.sel_end);
// display preview text inline, if the commit_text_preview API is supported.
if (g_ibus_rime_settings.embed_preedit_text &&
g_ibus_rime_settings.preedit_style == PREEDIT_STYLE_PREVIEW &&
RIME_STRUCT_HAS_MEMBER(context, context.commit_text_preview) &&
context.commit_text_preview) {
inline_text = ibus_text_new_from_string(context.commit_text_preview);
const guint inline_text_len = ibus_text_get_length(inline_text);
inline_cursor_pos =
g_ibus_rime_settings.cursor_type == CURSOR_TYPE_SELECT ?
g_utf8_strlen(context.composition.preedit,
context.composition.sel_start) :
inline_text_len;
inline_text->attrs = ibus_attr_list_new();
ibus_attr_list_append(
inline_text->attrs,
ibus_attr_underline_new(
IBUS_ATTR_UNDERLINE_SINGLE, 0, inline_text_len));
// show the unconverted range of preedit text as auxiliary text
if (has_highlighted_span) {
preedit_offset = context.composition.sel_start;
if (g_ibus_rime_settings.color_scheme) {
const guint start = g_utf8_strlen(
context.composition.preedit, context.composition.sel_start);
const guint end = inline_text_len;
ibus_attr_list_append(
inline_text->attrs,
ibus_attr_foreground_new(
g_ibus_rime_settings.color_scheme->text_color, start, end));
ibus_attr_list_append(
inline_text->attrs,
ibus_attr_background_new(
g_ibus_rime_settings.color_scheme->back_color, start, end));
}
} else {
// hide auxiliary text
preedit_offset = context.composition.length;
}
}
// display preedit text inline
else if (g_ibus_rime_settings.embed_preedit_text &&
g_ibus_rime_settings.preedit_style == PREEDIT_STYLE_COMPOSITION) {
inline_text = ibus_text_new_from_string(context.composition.preedit);
const guint inline_text_len = ibus_text_get_length(inline_text);
inline_cursor_pos =
g_ibus_rime_settings.cursor_type == CURSOR_TYPE_SELECT ?
g_utf8_strlen(context.composition.preedit,
context.composition.sel_start) :
g_utf8_strlen(context.composition.preedit,
context.composition.cursor_pos);
inline_text->attrs = ibus_attr_list_new();
ibus_attr_list_append(
inline_text->attrs,
ibus_attr_underline_new(
IBUS_ATTR_UNDERLINE_SINGLE, 0, inline_text_len));
if (has_highlighted_span && g_ibus_rime_settings.color_scheme) {
const guint start = g_utf8_strlen(
context.composition.preedit, context.composition.sel_start);
const glong end = g_utf8_strlen(
context.composition.preedit, context.composition.sel_end);
ibus_attr_list_append(
inline_text->attrs,
ibus_attr_foreground_new(
g_ibus_rime_settings.color_scheme->text_color, start, end));
ibus_attr_list_append(
inline_text->attrs,
ibus_attr_background_new(
g_ibus_rime_settings.color_scheme->back_color, start, end));
}
preedit_offset = context.composition.length;
}
// calculate auxiliary text
if (preedit_offset < context.composition.length) {
const char* preedit = context.composition.preedit + preedit_offset;
auxiliary_text = ibus_text_new_from_string(preedit);
// glong preedit_len = g_utf8_strlen(preedit, -1);
// glong cursor_pos = g_utf8_strlen(
// preedit, context.composition.cursor_pos - preedit_offset);
if (has_highlighted_span) {
auxiliary_text->attrs = ibus_attr_list_new();
const glong start = g_utf8_strlen(
preedit, context.composition.sel_start - preedit_offset);
const glong end = g_utf8_strlen(
preedit, context.composition.sel_end - preedit_offset);
ibus_attr_list_append(
auxiliary_text->attrs,
ibus_attr_foreground_new(RIME_COLOR_BLACK, start, end));
ibus_attr_list_append(
auxiliary_text->attrs,
ibus_attr_background_new(RIME_COLOR_LIGHT, start, end));
}
}
if (inline_text) {
ibus_engine_update_preedit_text(
(IBusEngine *)rime_engine, inline_text, inline_cursor_pos, TRUE);
} else {
ibus_engine_hide_preedit_text((IBusEngine *)rime_engine);
}
if (auxiliary_text) {
ibus_engine_update_auxiliary_text(
(IBusEngine *)rime_engine, auxiliary_text, TRUE);
} else {
ibus_engine_hide_auxiliary_text((IBusEngine *)rime_engine);
}
ibus_lookup_table_clear(rime_engine->table);
if (context.menu.num_candidates) {
int i;
int num_select_keys =
context.menu.select_keys ? strlen(context.menu.select_keys) : 0;
gboolean has_labels =
RIME_STRUCT_HAS_MEMBER(context, context.select_labels) &&
context.select_labels;
gboolean has_page_down = !context.menu.is_last_page;
gboolean has_page_up =
context.menu.is_last_page && context.menu.page_no > 0;
ibus_lookup_table_set_round(
rime_engine->table,
!(context.menu.is_last_page || context.menu.page_no == 0));
ibus_lookup_table_set_page_size(rime_engine->table, context.menu.page_size);
if (has_page_up) { //show page up for last page
for (i = 0; i < context.menu.page_size; ++i) {
ibus_lookup_table_append_candidate(
rime_engine->table, ibus_text_new_from_string(""));
}
}
for (i = 0; i < context.menu.num_candidates; ++i) {
gchar* text = context.menu.candidates[i].text;
gchar* comment = context.menu.candidates[i].comment;
IBusText *cand_text = NULL;
if (comment) {
gchar* temp = g_strconcat(text, " ", comment, NULL);
cand_text = ibus_text_new_from_string(temp);
g_free(temp);
int text_len = g_utf8_strlen(text, -1);
int end_index = ibus_text_get_length(cand_text);
ibus_text_append_attribute(cand_text,
IBUS_ATTR_TYPE_FOREGROUND,
RIME_COLOR_DARK,
text_len, end_index);
}
else {
cand_text = ibus_text_new_from_string(text);
}
ibus_lookup_table_append_candidate(rime_engine->table, cand_text);
IBusText *label = NULL;
if (i < context.menu.page_size && has_labels) {
label = ibus_text_new_from_string(context.select_labels[i]);
}
else if (i < num_select_keys) {
label = ibus_text_new_from_unichar(context.menu.select_keys[i]);
}
else {
label = ibus_text_new_from_printf("%d", (i + 1) % 10);
}
ibus_lookup_table_set_label(rime_engine->table, i, label);
}
if (has_page_down) { //show page down except last page
ibus_lookup_table_append_candidate(
rime_engine->table, ibus_text_new_from_string(""));
}
if (has_page_up) { //show page up for last page
ibus_lookup_table_set_cursor_pos(
rime_engine->table,
context.menu.page_size + context.menu.highlighted_candidate_index);
}
else {
ibus_lookup_table_set_cursor_pos(
rime_engine->table, context.menu.highlighted_candidate_index);
}
ibus_lookup_table_set_orientation(
rime_engine->table, g_ibus_rime_settings.lookup_table_orientation);
ibus_engine_update_lookup_table(
(IBusEngine *)rime_engine, rime_engine->table, TRUE);
}
else {
ibus_engine_hide_lookup_table((IBusEngine *)rime_engine);
}
// end updating UI
rime_api->free_context(&context);
}
static gboolean
ibus_rime_engine_process_key_event (IBusEngine *engine,
guint keyval,
guint keycode,
guint modifiers)
{
// ignore super key, @see ibus_engine_filter_key_event
if (modifiers & (IBUS_SUPER_MASK | IBUS_MOD4_MASK)) {
return FALSE;
}
IBusRimeEngine *rime_engine = (IBusRimeEngine *)engine;
modifiers &= (IBUS_RELEASE_MASK | IBUS_LOCK_MASK | IBUS_SHIFT_MASK |
IBUS_CONTROL_MASK | IBUS_MOD1_MASK);
if (!rime_api->find_session(rime_engine->session_id)) {
ibus_rime_create_session(rime_engine);
}
if (!rime_engine->session_id) { // service disabled
ibus_rime_engine_update(rime_engine);
return FALSE;
}
gboolean result =
rime_api->process_key(rime_engine->session_id, keyval, modifiers);
ibus_rime_engine_update(rime_engine);
return result;
}
static void ibus_rime_engine_property_activate (IBusEngine *engine,
const gchar *prop_name,
guint prop_state)
{
extern void ibus_rime_start(gboolean full_check);
extern void ibus_rime_stop();
IBusRimeEngine *rime_engine = (IBusRimeEngine *)engine;
if (!strcmp("deploy", prop_name)) {
ibus_rime_stop();
ibus_rime_start(TRUE);
ibus_rime_engine_update(rime_engine);
}
else if (!strcmp("sync", prop_name)) {
// in the case a maintenance thread has already been started
// by start_maintenance(); the following call to sync_user_data()
// will queue data synching tasks for execution in the working
// maintenance thread, and will return False.
// however, there is still chance that the working maintenance thread
// happens to be quitting when new tasks are added, thus leaving newly
// added tasks undone...
rime_api->sync_user_data();
ibus_rime_engine_update(rime_engine);
}
else if (!strcmp("InputMode", prop_name)) {
rime_api->set_option(
rime_engine->session_id, "ascii_mode",
!rime_api->get_option(rime_engine->session_id, "ascii_mode"));
ibus_rime_engine_update(rime_engine);
}
}
static void ibus_rime_engine_candidate_clicked (IBusEngine *engine,
guint index,
guint button,
guint state)
{
IBusRimeEngine *rime_engine = (IBusRimeEngine *)engine;
if (RIME_API_AVAILABLE(rime_api, select_candidate)) {
RIME_STRUCT(RimeContext, context);
if (!rime_api->get_context(rime_engine->session_id, &context) ||
context.composition.length == 0) {
rime_api->free_context(&context);
return;
}
rime_api->select_candidate(
rime_engine->session_id,
context.menu.page_no * context.menu.page_size + index);
rime_api->free_context(&context);
ibus_rime_engine_update(rime_engine);
}
}
static void ibus_rime_engine_page_up (IBusEngine *engine)
{
IBusRimeEngine *rime_engine = (IBusRimeEngine *)engine;
rime_api->process_key(rime_engine->session_id, IBUS_KEY_Page_Up, 0);
ibus_rime_engine_update(rime_engine);
}
static void ibus_rime_engine_page_down (IBusEngine *engine)
{
IBusRimeEngine *rime_engine = (IBusRimeEngine *)engine;
rime_api->process_key(rime_engine->session_id, IBUS_KEY_Page_Down, 0);
ibus_rime_engine_update(rime_engine);
}