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ibus/bus/ibusimpl.c

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/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
/* vim:set et sts=4: */
/* ibus - The Input Bus
* Copyright (C) 2008-2013 Peng Huang <shawn.p.huang@gmail.com>
* Copyright (C) 2011-2021 Takao Fujiwara <takao.fujiwara1@gmail.com>
* Copyright (C) 2008-2021 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
*/
#include "ibusimpl.h"
#include <locale.h>
#include <signal.h>
#include <strings.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include "connection.h"
#include "dbusimpl.h"
#include "factoryproxy.h"
#include "global.h"
#include "inputcontext.h"
#include "panelproxy.h"
#include "server.h"
#include "types.h"
struct _BusIBusImpl {
IBusService parent;
/* instance members */
GHashTable *factory_dict;
/* registered components */
GList *registered_components;
GList *contexts;
/* a fake input context for global engine support */
BusInputContext *fake_context;
/* a list of engines that are started by a user (without the --ibus
* command line flag.) */
GList *register_engine_list;
/* if TRUE, ibus-daemon uses a keysym translated by the system
* (i.e. XKB) as-is. otherwise, ibus-daemon itself converts keycode
* into keysym. */
gboolean use_sys_layout;
gboolean embed_preedit_text;
IBusRegistry *registry;
/* a list of BusComponent objects that are created from component XML
* files (or from the cache of them). */
GList *components;
/* a mapping from an engine name (e.g. 'pinyin') to the corresponding
* IBusEngineDesc object. */
GHashTable *engine_table;
BusInputContext *focused_context;
BusPanelProxy *panel;
BusPanelProxy *emoji_extension;
gboolean enable_emoji_extension;
/* a default keymap of ibus-daemon (usually "us") which is used only
* when use_sys_layout is FALSE. */
IBusKeymap *keymap;
gboolean use_global_engine;
gchar *global_engine_name;
gchar *global_previous_engine_name;
GVariant *extension_register_keys;
};
struct _BusIBusImplClass {
IBusServiceClass parent;
/* class members */
};
enum {
LAST_SIGNAL,
};
enum {
PROP_0,
};
/*
static guint _signals[LAST_SIGNAL] = { 0 };
*/
/* functions prototype */
static void bus_ibus_impl_destroy (BusIBusImpl *ibus);
static void bus_ibus_impl_service_method_call
(IBusService *service,
GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation
*invocation);
static GVariant *
bus_ibus_impl_service_get_property
(IBusService *service,
GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GError **error);
static gboolean
bus_ibus_impl_service_set_property
(IBusService *service,
GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GVariant *value,
GError **error);
static void bus_ibus_impl_registry_init
(BusIBusImpl *ibus);
static void bus_ibus_impl_registry_changed
(BusIBusImpl *ibus);
static void bus_ibus_impl_registry_destroy
(BusIBusImpl *ibus);
static void bus_ibus_impl_component_name_owner_changed
(BusIBusImpl *ibus,
const gchar *name,
const gchar *old_name,
const gchar *new_name);
static void bus_ibus_impl_global_engine_changed
(BusIBusImpl *ibus);
static void bus_ibus_impl_set_context_engine_from_desc
(BusIBusImpl *ibus,
BusInputContext *context,
IBusEngineDesc *desc);
static BusInputContext
*bus_ibus_impl_create_input_context
(BusIBusImpl *ibus,
BusConnection *connection,
const gchar *client);
static IBusEngineDesc
*bus_ibus_impl_get_engine_desc
(BusIBusImpl *ibus,
const gchar *engine_name);
static void bus_ibus_impl_set_focused_context
(BusIBusImpl *ibus,
BusInputContext *context);
static void bus_ibus_impl_property_changed
(BusIBusImpl *service,
const gchar *property_name,
GVariant *value);
/* some callback functions */
static void _context_engine_changed_cb
(BusInputContext *context,
BusIBusImpl *ibus);
/* The interfaces available in this class, which consists of a list of
* methods this class implements and a list of signals this class may emit.
* Method calls to the interface that are not defined in this XML will
* be automatically rejected by the GDBus library (see src/ibusservice.c
* for details.)
* Implement org.freedesktop.DBus.Properties
* http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-properties */
static const gchar introspection_xml[] =
"<node>\n"
" <interface name='org.freedesktop.IBus'>\n"
" <property name='Address' type='s' access='read' />\n"
" <property name='CurrentInputContext' type='o' access='read' />\n"
" <property name='Engines' type='av' access='read' />\n"
" <property name='GlobalEngine' type='v' access='read' />\n"
" <property name='PreloadEngines' type='as' access='write'>\n"
" <annotation\n"
" name='org.freedesktop.DBus.Property.EmitsChangedSignal'\n"
" value='true' />\n"
" </property>\n"
" <property name='EmbedPreeditText' type='b' access='readwrite'>\n"
" <annotation\n"
" name='org.freedesktop.DBus.Property.EmitsChangedSignal'\n"
" value='true' />\n"
" </property>\n"
" <method name='CreateInputContext'>\n"
" <arg direction='in' type='s' name='client_name' />\n"
" <arg direction='out' type='o' name='object_path' />\n"
" </method>\n"
" <method name='RegisterComponent'>\n"
" <arg direction='in' type='v' name='component' />\n"
" </method>\n"
" <method name='GetEnginesByNames'>\n"
" <arg direction='in' type='as' name='names' />\n"
" <arg direction='out' type='av' name='engines' />\n"
" </method>\n"
" <method name='Exit'>\n"
" <arg direction='in' type='b' name='restart' />\n"
" </method>\n"
" <method name='Ping'>\n"
" <arg direction='in' type='v' name='data' />\n"
" <arg direction='out' type='v' name='data' />\n"
" </method>\n"
" <method name='SetGlobalEngine'>\n"
" <arg direction='in' type='s' name='engine_name' />\n"
" </method>\n"
" <signal name='RegistryChanged'>\n"
" </signal>\n"
" <signal name='GlobalEngineChanged'>\n"
" <arg type='s' name='engine_name' />\n"
" </signal>\n"
" <property name='ActiveEngines' type='av' access='read' />\n"
" <method name='GetAddress'>\n"
" <arg direction='out' type='s' name='address' />\n"
" <annotation name='org.freedesktop.DBus.Deprecated' value='true'/>\n"
" </method>\n"
" <method name='CurrentInputContext'>\n"
" <arg direction='out' type='o' name='object_path' />\n"
" <annotation name='org.freedesktop.DBus.Deprecated' value='true'/>\n"
" </method>\n"
" <method name='ListEngines'>\n"
" <arg direction='out' type='av' name='engines' />\n"
" <annotation name='org.freedesktop.DBus.Deprecated' value='true'/>\n"
" </method>\n"
" <method name='ListActiveEngines'>\n"
" <arg direction='out' type='av' name='engines' />\n"
" <annotation name='org.freedesktop.DBus.Deprecated' value='true'/>\n"
" </method>\n"
" <method name='GetUseSysLayout'>\n"
" <arg direction='out' type='b' name='enabled' />\n"
" <annotation name='org.freedesktop.DBus.Deprecated' value='true'/>\n"
" </method>\n"
" <method name='GetUseGlobalEngine'>\n"
" <arg direction='out' type='b' name='enabled' />\n"
" </method>\n"
" <method name='IsGlobalEngineEnabled'>\n"
" <arg direction='out' type='b' name='enabled' />\n"
" <annotation name='org.freedesktop.DBus.Deprecated' value='true'/>\n"
" </method>\n"
" <method name='GetGlobalEngine'>\n"
" <arg direction='out' type='v' name='desc' />\n"
" <annotation name='org.freedesktop.DBus.Deprecated' value='true'/>\n"
" </method>\n"
" </interface>\n"
"</node>\n";
G_DEFINE_TYPE (BusIBusImpl, bus_ibus_impl, IBUS_TYPE_SERVICE)
static void
bus_ibus_impl_class_init (BusIBusImplClass *class)
{
IBUS_OBJECT_CLASS (class)->destroy =
(IBusObjectDestroyFunc) bus_ibus_impl_destroy;
/* override the parent class's implementation. */
IBUS_SERVICE_CLASS (class)->service_method_call =
bus_ibus_impl_service_method_call;
IBUS_SERVICE_CLASS (class)->service_get_property =
bus_ibus_impl_service_get_property;
IBUS_SERVICE_CLASS (class)->service_set_property =
bus_ibus_impl_service_set_property;
/* register the xml so that bus_ibus_impl_service_method_call will be
* called on a method call defined in the xml (e.g. 'GetAddress'.) */
ibus_service_class_add_interfaces (IBUS_SERVICE_CLASS (class),
introspection_xml);
}
/**
* _panel_destroy_cb:
*
* A callback function which is called when (1) the connection to the panel process is terminated,
* or (2) ibus_proxy_destroy (ibus->panel); is called. See src/ibusproxy.c for details.
*/
static void
_panel_destroy_cb (BusPanelProxy *panel,
BusIBusImpl *ibus)
{
g_assert (BUS_IS_PANEL_PROXY (panel));
g_assert (BUS_IS_IBUS_IMPL (ibus));
if (ibus->panel == panel)
ibus->panel = NULL;
else if (ibus->emoji_extension == panel)
ibus->emoji_extension = NULL;
else
g_return_if_reached ();
g_object_unref (panel);
}
static void
bus_ibus_impl_set_panel_extension_mode (BusIBusImpl *ibus,
IBusExtensionEvent *event)
{
gboolean is_extension = FALSE;
g_return_if_fail (BUS_IS_IBUS_IMPL (ibus));
g_return_if_fail (IBUS_IS_EXTENSION_EVENT (event));
if (!ibus->emoji_extension) {
g_warning ("Panel extension is not running.");
return;
}
g_return_if_fail (BUS_IS_PANEL_PROXY (ibus->emoji_extension));
ibus->enable_emoji_extension = ibus_extension_event_is_enabled (event);
is_extension = ibus_extension_event_is_extension (event);
if (ibus->focused_context != NULL) {
if (ibus->enable_emoji_extension) {
bus_input_context_set_emoji_extension (ibus->focused_context,
ibus->emoji_extension);
} else {
bus_input_context_set_emoji_extension (ibus->focused_context, NULL);
}
if (is_extension)
bus_input_context_panel_extension_received (ibus->focused_context,
event);
}
if (is_extension)
return;
/* Use the DBus method because it seems any DBus signal,
* g_dbus_message_new_signal(), cannot be reached to the server. */
bus_panel_proxy_panel_extension_received (ibus->emoji_extension,
event);
}
static void
bus_ibus_impl_set_panel_extension_keys (BusIBusImpl *ibus,
GVariant *parameters)
{
BusEngineProxy *engine = NULL;
g_return_if_fail (BUS_IS_IBUS_IMPL (ibus));
g_return_if_fail (parameters);
if (!ibus->emoji_extension) {
g_warning ("Panel extension is not running.");
return;
}
if (ibus->extension_register_keys)
g_variant_unref (ibus->extension_register_keys);
ibus->extension_register_keys = g_variant_ref_sink (parameters);
if (ibus->focused_context != NULL) {
engine = bus_input_context_get_engine (ibus->focused_context);
}
if (!engine)
return;
bus_engine_proxy_panel_extension_register_keys (engine, parameters);
}
static void
_panel_panel_extension_cb (BusPanelProxy *panel,
IBusExtensionEvent *event,
BusIBusImpl *ibus)
{
bus_ibus_impl_set_panel_extension_mode (ibus, event);
}
static void
_panel_panel_extension_register_keys_cb (BusInputContext *context,
GVariant *parameters,
BusIBusImpl *ibus)
{
bus_ibus_impl_set_panel_extension_keys (ibus, parameters);
}
static void
_panel_update_preedit_text_received_cb (BusPanelProxy *panel,
IBusText *text,
guint cursor_pos,
gboolean visible,
BusIBusImpl *ibus)
{
g_return_if_fail (BUS_IS_IBUS_IMPL (ibus));
if (!ibus->focused_context)
return;
bus_input_context_update_preedit_text (ibus->focused_context,
text, cursor_pos, visible, IBUS_ENGINE_PREEDIT_CLEAR, FALSE);
}
static void
_panel_update_lookup_table_received_cb (BusPanelProxy *panel,
IBusLookupTable *table,
gboolean visible,
BusIBusImpl *ibus)
{
g_return_if_fail (BUS_IS_IBUS_IMPL (ibus));
g_return_if_fail (IBUS_IS_LOOKUP_TABLE (table));
if (!ibus->focused_context)
return;
/* Call bus_input_context_update_lookup_table() instead of
* bus_panel_proxy_update_lookup_table() for panel extensions because
* bus_input_context_page_up() can call bus_panel_proxy_page_up_received().
*/
bus_input_context_update_lookup_table (
ibus->focused_context, table, visible, TRUE);
}
static void
_panel_update_auxiliary_text_received_cb (BusPanelProxy *panel,
IBusText *text,
gboolean visible,
BusIBusImpl *ibus)
{
g_return_if_fail (BUS_IS_IBUS_IMPL (ibus));
g_return_if_fail (IBUS_IS_TEXT (text));
if (!ibus->panel)
return;
bus_panel_proxy_update_auxiliary_text (
ibus->panel, text, visible);
}
static void
_registry_changed_cb (IBusRegistry *registry,
BusIBusImpl *ibus)
{
bus_ibus_impl_registry_changed (ibus);
}
/*
* _dbus_name_owner_changed_cb:
*
* A callback function to be called when the name-owner-changed signal is sent to the dbus object.
* This usually means a client (e.g. a panel/config/engine process or an application) is connected/disconnected to/from the bus.
*/
static void
_dbus_name_owner_changed_cb (BusDBusImpl *dbus,
BusConnection *orig_connection,
const gchar *name,
const gchar *old_name,
const gchar *new_name,
BusIBusImpl *ibus)
{
PanelType panel_type = PANEL_TYPE_NONE;
g_assert (BUS_IS_DBUS_IMPL (dbus));
g_assert (name != NULL);
g_assert (old_name != NULL);
g_assert (new_name != NULL);
g_assert (BUS_IS_IBUS_IMPL (ibus));
if (!g_strcmp0 (name, IBUS_SERVICE_PANEL))
panel_type = PANEL_TYPE_PANEL;
else if (!g_strcmp0 (name, IBUS_SERVICE_PANEL_EXTENSION_EMOJI))
panel_type = PANEL_TYPE_EXTENSION_EMOJI;
do {
if (panel_type == PANEL_TYPE_NONE)
break;
if (g_strcmp0 (new_name, "") != 0) {
/* a Panel process is started. */
BusConnection *connection;
BusInputContext *context = NULL;
BusPanelProxy **panel = (panel_type == PANEL_TYPE_PANEL) ?
&ibus->panel : &ibus->emoji_extension;
GDBusConnection *dbus_connection = NULL;
if (*panel != NULL) {
ibus_proxy_destroy ((IBusProxy *)(*panel));
/* panel should be NULL after destroy. See _panel_destroy_cb
* for details. */
g_assert (*panel == NULL);
}
connection = bus_dbus_impl_get_connection_by_name (BUS_DEFAULT_DBUS,
new_name);
g_return_if_fail (connection != NULL);
dbus_connection = bus_connection_get_dbus_connection (connection);
/* rhbz#1349148 rhbz#1385349
* Avoid SEGV of BUS_IS_PANEL_PROXY (ibus->panel)
* This function is called during destroying the connection
* in this case? */
if (dbus_connection == NULL ||
g_dbus_connection_is_closed (dbus_connection)) {
new_name = "";
break;
}
*panel = bus_panel_proxy_new (connection, panel_type);
if (panel_type == PANEL_TYPE_EXTENSION_EMOJI)
ibus->enable_emoji_extension = FALSE;
g_signal_connect (*panel,
"destroy",
G_CALLBACK (_panel_destroy_cb),
ibus);
g_signal_connect (*panel,
"panel-extension",
G_CALLBACK (_panel_panel_extension_cb),
ibus);
g_signal_connect (*panel,
"panel-extension-register-keys",
G_CALLBACK (
_panel_panel_extension_register_keys_cb),
ibus);
g_signal_connect (
*panel,
"update-preedit-text-received",
G_CALLBACK (_panel_update_preedit_text_received_cb),
ibus);
g_signal_connect (
*panel,
"update-lookup-table-received",
G_CALLBACK (_panel_update_lookup_table_received_cb),
ibus);
g_signal_connect (
*panel,
"update-auxiliary-text-received",
G_CALLBACK (_panel_update_auxiliary_text_received_cb),
ibus);
if (ibus->focused_context != NULL) {
context = ibus->focused_context;
}
else if (ibus->use_global_engine) {
context = ibus->fake_context;
}
if (context != NULL) {
BusEngineProxy *engine;
bus_panel_proxy_focus_in (*panel, context);
engine = bus_input_context_get_engine (context);
if (engine != NULL) {
IBusPropList *prop_list =
bus_engine_proxy_get_properties (engine);
bus_panel_proxy_register_properties (*panel, prop_list);
}
}
}
} while (0);
bus_ibus_impl_component_name_owner_changed (ibus, name, old_name, new_name);
}
/**
* bus_ibus_impl_init:
*
* The constructor of BusIBusImpl. Initialize all member variables of a BusIBusImpl object.
*/
static void
bus_ibus_impl_init (BusIBusImpl *ibus)
{
ibus->factory_dict = g_hash_table_new_full (
g_str_hash,
g_str_equal,
NULL,
(GDestroyNotify) g_object_unref);
ibus->fake_context = bus_input_context_new (NULL, "fake");
g_object_ref_sink (ibus->fake_context);
bus_dbus_impl_register_object (BUS_DEFAULT_DBUS,
(IBusService *) ibus->fake_context);
bus_input_context_set_capabilities (ibus->fake_context,
IBUS_CAP_PREEDIT_TEXT |
IBUS_CAP_FOCUS |
IBUS_CAP_SURROUNDING_TEXT);
g_signal_connect (ibus->fake_context,
"engine-changed",
G_CALLBACK (_context_engine_changed_cb),
ibus);
bus_input_context_focus_in (ibus->fake_context);
ibus->register_engine_list = NULL;
ibus->contexts = NULL;
ibus->focused_context = NULL;
ibus->panel = NULL;
ibus->emoji_extension = NULL;
ibus->keymap = ibus_keymap_get ("us");
ibus->use_sys_layout = TRUE;
ibus->embed_preedit_text = TRUE;
ibus->use_global_engine = TRUE;
ibus->global_engine_name = NULL;
ibus->global_previous_engine_name = NULL;
/* focus the fake_context, if use_global_engine is enabled. */
if (ibus->use_global_engine)
bus_ibus_impl_set_focused_context (ibus, ibus->fake_context);
g_signal_connect (BUS_DEFAULT_DBUS,
"name-owner-changed",
G_CALLBACK (_dbus_name_owner_changed_cb),
ibus);
bus_ibus_impl_registry_init (ibus);
}
/**
* bus_ibus_impl_destroy:
*
* The destructor of BusIBusImpl.
*/
static void
bus_ibus_impl_destroy (BusIBusImpl *ibus)
{
pid_t pid;
glong timeout;
gint status;
gboolean flag;
g_list_foreach (ibus->components, (GFunc) bus_component_stop, NULL);
timeout = 0;
flag = FALSE;
while (1) {
while ((pid = waitpid (0, &status, WNOHANG)) > 0);
if (pid == -1) { /* all children finished */
break;
}
if (pid == 0) { /* no child status changed */
g_usleep (1000);
timeout += 1000;
if (timeout >= G_USEC_PER_SEC) {
if (flag == FALSE) {
gpointer old;
old = signal (SIGTERM, SIG_IGN);
/* send TERM signal to the whole process group (i.e. engines, panel, and config daemon.) */
kill (-getpid (), SIGTERM);
signal (SIGTERM, old);
flag = TRUE;
}
else {
g_warning ("Not every child processes exited!");
break;
}
}
}
}
g_list_free_full (ibus->register_engine_list, g_object_unref);
ibus->register_engine_list = NULL;
if (ibus->factory_dict != NULL) {
g_hash_table_destroy (ibus->factory_dict);
ibus->factory_dict = NULL;
}
if (ibus->keymap != NULL) {
g_object_unref (ibus->keymap);
ibus->keymap = NULL;
}
g_free (ibus->global_engine_name);
ibus->global_engine_name = NULL;
g_free (ibus->global_previous_engine_name);
ibus->global_previous_engine_name = NULL;
if (ibus->fake_context) {
g_object_unref (ibus->fake_context);
ibus->fake_context = NULL;
}
bus_ibus_impl_registry_destroy (ibus);
IBUS_OBJECT_CLASS (bus_ibus_impl_parent_class)->destroy (IBUS_OBJECT (ibus));
}
/**
* _ibus_get_address:
*
* Implement the "Address" method call of the org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_address (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
if (error) {
*error = NULL;
}
return g_variant_new_string (bus_server_get_address ());
}
static void
_ibus_get_address_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GError *error = NULL;
GVariant *variant = NULL;
g_warning ("org.freedesktop.IBus.GetAddress() is deprecated!");
variant = _ibus_get_address (ibus, connection, &error);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(s)", g_variant_get_string (variant, NULL)));
g_variant_unref (variant);
}
static IBusEngineDesc *
_find_engine_desc_by_name (BusIBusImpl *ibus,
const gchar *engine_name)
{
IBusEngineDesc *desc = NULL;
GList *p;
/* find engine in registered engine list */
for (p = ibus->register_engine_list; p != NULL; p = p->next) {
desc = (IBusEngineDesc *) p->data;
if (g_strcmp0 (ibus_engine_desc_get_name (desc), engine_name) == 0)
return desc;
}
return NULL;
}
/**
* _context_request_engine_cb:
*
* A callback function to be called when the "request-engine" signal is sent to the context.
*/
static IBusEngineDesc *
_context_request_engine_cb (BusInputContext *context,
const gchar *engine_name,
BusIBusImpl *ibus)
{
if (engine_name == NULL || engine_name[0] == '\0')
engine_name = DEFAULT_ENGINE;
return bus_ibus_impl_get_engine_desc (ibus, engine_name);
}
/**
* bus_ibus_impl_get_engine_desc:
*
* Get the IBusEngineDesc by engine_name. If the engine_name is NULL, return
* a default engine desc.
*/
static IBusEngineDesc *
bus_ibus_impl_get_engine_desc (BusIBusImpl *ibus,
const gchar *engine_name)
{
g_return_val_if_fail (engine_name != NULL, NULL);
g_return_val_if_fail (engine_name[0] != '\0', NULL);
IBusEngineDesc *desc = _find_engine_desc_by_name (ibus, engine_name);
if (desc == NULL) {
desc = (IBusEngineDesc *) g_hash_table_lookup (ibus->engine_table,
engine_name);
}
return desc;
}
static void
bus_ibus_impl_set_context_engine_from_desc (BusIBusImpl *ibus,
BusInputContext *context,
IBusEngineDesc *desc)
{
bus_input_context_set_engine_by_desc (context,
desc,
g_gdbus_timeout, /* timeout in msec. */
NULL, /* we do not cancel the call. */
NULL, /* use the default callback function. */
NULL);
}
static void
_context_panel_extension_cb (BusInputContext *context,
IBusExtensionEvent *event,
BusIBusImpl *ibus)
{
bus_ibus_impl_set_panel_extension_mode (ibus, event);
}
const static struct {
const gchar *name;
GCallback callback;
} context_signals [] = {
{ "panel-extension", G_CALLBACK (_context_panel_extension_cb) }
};
/**
* bus_ibus_impl_set_focused_context:
*
* Set the current focused context.
*/
static void
bus_ibus_impl_set_focused_context (BusIBusImpl *ibus,
BusInputContext *context)
{
gint i;
BusEngineProxy *engine = NULL;
guint purpose = 0;
guint hints = 0;
g_assert (BUS_IS_IBUS_IMPL (ibus));
g_assert (context == NULL || BUS_IS_INPUT_CONTEXT (context));
g_assert (context == NULL || bus_input_context_get_capabilities (context) & IBUS_CAP_FOCUS);
/* Do noting if it is focused context. */
if (ibus->focused_context == context) {
return;
}
if (ibus->focused_context) {
if (ibus->use_global_engine) {
/* dettach engine from the focused context */
engine = bus_input_context_get_engine (ibus->focused_context);
if (engine) {
g_object_ref (engine);
/* _ic_focus_in() can be called before _ic_focus_out() is
* called under the async processes of two ibus clients.
* E.g. gedit is a little slower v.s. a simple GtkTextView
* application is the fastest when you click a Hangul
* preedit text between the applications.
* preedit will be committed with focus-out in the ibus client
* likes ibus-im.so
* so do not commit preedit here in focus-in event.
*/
bus_input_context_clear_preedit_text (ibus->focused_context,
FALSE);
bus_input_context_set_engine (ibus->focused_context, NULL);
bus_input_context_set_emoji_extension (ibus->focused_context,
NULL);
}
}
if (ibus->panel != NULL)
bus_panel_proxy_focus_out (ibus->panel, ibus->focused_context);
if (ibus->emoji_extension != NULL) {
bus_panel_proxy_focus_out (ibus->emoji_extension,
ibus->focused_context);
}
bus_input_context_set_emoji_extension (ibus->focused_context, NULL);
bus_input_context_get_content_type (ibus->focused_context,
&purpose, &hints);
for (i = 0; i < G_N_ELEMENTS(context_signals); i++) {
g_signal_handlers_disconnect_by_func (ibus->focused_context,
context_signals[i].callback, ibus);
}
g_object_unref (ibus->focused_context);
ibus->focused_context = NULL;
}
if (context == NULL && ibus->use_global_engine) {
context = ibus->fake_context;
if (context)
bus_input_context_set_content_type (context, purpose, hints);
}
if (context) {
ibus->focused_context = (BusInputContext *) g_object_ref (context);
/* attach engine to the focused context */
if (engine != NULL) {
bus_input_context_set_engine (context, engine);
bus_input_context_enable (context);
if (ibus->enable_emoji_extension) {
bus_input_context_set_emoji_extension (context,
ibus->emoji_extension);
} else {
bus_input_context_set_emoji_extension (context, NULL);
}
}
for (i = 0; i < G_N_ELEMENTS(context_signals); i++) {
g_signal_connect (ibus->focused_context,
context_signals[i].name,
context_signals[i].callback,
ibus);
}
if (ibus->panel != NULL)
bus_panel_proxy_focus_in (ibus->panel, context);
if (ibus->emoji_extension != NULL)
bus_panel_proxy_focus_in (ibus->emoji_extension, context);
}
if (engine != NULL)
g_object_unref (engine);
}
static void
bus_ibus_impl_set_global_engine (BusIBusImpl *ibus,
BusEngineProxy *engine)
{
if (!ibus->use_global_engine)
return;
if (ibus->focused_context) {
bus_input_context_set_engine (ibus->focused_context, engine);
if (ibus->enable_emoji_extension) {
bus_input_context_set_emoji_extension (ibus->focused_context,
ibus->emoji_extension);
} else {
bus_input_context_set_emoji_extension (ibus->focused_context, NULL);
}
} else if (ibus->fake_context) {
bus_input_context_set_engine (ibus->fake_context, engine);
}
}
static void
bus_ibus_impl_set_global_engine_by_name (BusIBusImpl *ibus,
const gchar *name)
{
if (!ibus->use_global_engine)
return;
BusInputContext *context =
ibus->focused_context != NULL ? ibus->focused_context : ibus->fake_context;
if (context == NULL) {
return;
}
if (g_strcmp0 (name, ibus->global_engine_name) == 0) {
/* If the user requested the same global engine, then we just enable the
* original one. */
bus_input_context_enable (context);
return;
}
/* If there is a focused input context, then we just change the engine of
* the focused context, which will then change the global engine
* automatically. Otherwise, we need to change the global engine directly.
*/
IBusEngineDesc *desc = NULL;
desc = bus_ibus_impl_get_engine_desc (ibus, name);
if (desc != NULL) {
bus_ibus_impl_set_context_engine_from_desc (ibus,
context,
desc);
}
}
/* When preload_engines and register_engiens are changed, this function
* will check the global engine. If necessay, it will change the global engine.
*/
static void
bus_ibus_impl_check_global_engine (BusIBusImpl *ibus)
{
GList *engine_list = NULL;
/* do nothing */
if (!ibus->use_global_engine)
return;
/* The current global engine is not removed, so do nothing. */
if (ibus->global_engine_name != NULL &&
_find_engine_desc_by_name (ibus, ibus->global_engine_name)) {
return;
}
/* If the previous engine is available, then just switch to it. */
if (ibus->global_previous_engine_name != NULL &&
_find_engine_desc_by_name (ibus, ibus->global_previous_engine_name)) {
bus_ibus_impl_set_global_engine_by_name (
ibus, ibus->global_previous_engine_name);
return;
}
/* Just switch to the fist engine in the list. */
engine_list = ibus->register_engine_list;
if (engine_list) {
IBusEngineDesc *engine_desc = (IBusEngineDesc *)engine_list->data;
bus_ibus_impl_set_global_engine_by_name (ibus,
ibus_engine_desc_get_name (engine_desc));
return;
}
/* No engine available? Just disable global engine. */
bus_ibus_impl_set_global_engine (ibus, NULL);
}
/**
* _context_engine_changed_cb:
*
* A callback function to be called when the "engine-changed" signal is sent to the context.
* Update global engine as well if necessary.
*/
static void
_context_engine_changed_cb (BusInputContext *context,
BusIBusImpl *ibus)
{
if (!ibus->use_global_engine)
return;
if ((context == ibus->focused_context) ||
(ibus->focused_context == NULL && context == ibus->fake_context)) {
BusEngineProxy *engine = bus_input_context_get_engine (context);
if (engine != NULL) {
/* only set global engine if engine is not NULL */
const gchar *name = ibus_engine_desc_get_name (bus_engine_proxy_get_desc (engine));
if (g_strcmp0 (name, ibus->global_engine_name) == 0)
return;
g_free (ibus->global_previous_engine_name);
ibus->global_previous_engine_name = ibus->global_engine_name;
ibus->global_engine_name = g_strdup (name);
bus_ibus_impl_global_engine_changed (ibus);
}
}
}
/**
* _context_focus_in_cb:
*
* A callback function to be called when the "focus-in" signal is sent to the context.
* If necessary, enables the global engine on the context and update ibus->focused_context.
*/
static void
_context_focus_in_cb (BusInputContext *context,
BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
g_assert (BUS_IS_INPUT_CONTEXT (context));
/* Do nothing if context does not support focus.
* The global engine shoule be detached from the focused context. */
if ((bus_input_context_get_capabilities (context) & IBUS_CAP_FOCUS) == 0) {
return;
}
bus_ibus_impl_set_focused_context (ibus, context);
}
/**
* _context_focus_out_cb:
*
* A callback function to be called when the "focus-out" signal is sent to the context.
*/
static void
_context_focus_out_cb (BusInputContext *context,
BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
g_assert (BUS_IS_INPUT_CONTEXT (context));
/* Do noting if context does not support focus.
* Actually, the context should emit focus signals, if it does not support focus */
if ((bus_input_context_get_capabilities (context) & IBUS_CAP_FOCUS) == 0) {
return;
}
/* Do noting if it is not focused context. */
if (ibus->focused_context != context) {
return;
}
bus_ibus_impl_set_focused_context (ibus, NULL);
}
/**
* _context_destroy_cb:
*
* A callback function to be called when the "destroy" signal is sent to the
* context.
*/
static void
_context_destroy_cb (BusInputContext *context,
BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
g_assert (BUS_IS_INPUT_CONTEXT (context));
if (context == ibus->focused_context)
bus_ibus_impl_set_focused_context (ibus, NULL);
if (ibus->panel &&
bus_input_context_get_capabilities (context) & IBUS_CAP_FOCUS) {
bus_panel_proxy_destroy_context (ibus->panel, context);
}
if (ibus->emoji_extension &&
bus_input_context_get_capabilities (context) & IBUS_CAP_FOCUS) {
bus_panel_proxy_destroy_context (ibus->emoji_extension, context);
}
ibus->contexts = g_list_remove (ibus->contexts, context);
g_object_unref (context);
}
/**
* bus_ibus_impl_create_input_context:
* @client: A name of a client. e.g. "gtk-im"
* @returns: A BusInputContext object.
*
* Create a new BusInputContext object for the client.
*/
static BusInputContext *
bus_ibus_impl_create_input_context (BusIBusImpl *ibus,
BusConnection *connection,
const gchar *client)
{
BusInputContext *context = bus_input_context_new (connection, client);
g_object_ref_sink (context);
ibus->contexts = g_list_append (ibus->contexts, context);
/* Installs glib signal handlers so that the ibus object could be notified when e.g. an IBus.InputContext D-Bus method is called. */
static const struct {
gchar *name;
GCallback callback;
} signals [] = {
{ "request-engine", G_CALLBACK (_context_request_engine_cb) },
{ "engine-changed", G_CALLBACK (_context_engine_changed_cb) },
{ "focus-in", G_CALLBACK (_context_focus_in_cb) },
{ "focus-out", G_CALLBACK (_context_focus_out_cb) },
{ "destroy", G_CALLBACK (_context_destroy_cb) },
};
gint i;
for (i = 0; i < G_N_ELEMENTS (signals); i++) {
g_signal_connect (context,
signals[i].name,
signals[i].callback,
ibus);
}
bus_input_context_enable (context);
/* register the context object so that the object could handle IBus.InputContext method calls. */
bus_dbus_impl_register_object (BUS_DEFAULT_DBUS,
(IBusService *) context);
g_object_ref (context);
return context;
}
/**
* _ibus_create_input_context:
*
* Implement the "CreateInputContext" method call of the org.freedesktop.IBus interface.
*/
static void
_ibus_create_input_context (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
const gchar *client_name = NULL; // e.g. "gtk-im"
g_variant_get (parameters, "(&s)", &client_name);
BusConnection *connection =
bus_connection_lookup (g_dbus_method_invocation_get_connection (invocation));
BusInputContext *context =
bus_ibus_impl_create_input_context (ibus,
connection,
client_name);
if (context) {
const gchar *path = ibus_service_get_object_path ((IBusService *) context);
/* the format-string 'o' is for a D-Bus object path. */
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(o)", path));
g_object_unref (context);
}
else {
g_dbus_method_invocation_return_error (invocation,
G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Create input context failed!");
}
}
/**
* _ibus_get_current_input_context:
*
* Implement the "CurrentInputContext" method call of the
* org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_current_input_context (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
GVariant *retval = NULL;
if (error) {
*error = NULL;
}
if (!ibus->focused_context)
{
g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"No focused input context");
return NULL;
}
else {
const gchar *path = ibus_service_get_object_path (
(IBusService *) ibus->focused_context);
/* the format-string 'o' is for a D-Bus object path. */
retval = g_variant_new_object_path (path);
if (!retval) {
g_set_error (error, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"Could not get object path from %s",
path ? path : "(null)");
}
}
return retval;
}
static void
_ibus_current_input_context_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GVariant *variant = NULL;
GError *error = NULL;
g_warning ("org.freedesktop.IBus.CurrentInputContext() is deprecated!");
variant = _ibus_get_current_input_context (ibus, connection, &error);
if (variant == NULL) {
g_dbus_method_invocation_return_error (
invocation, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"%s", error->message);
g_error_free (error);
} else {
const gchar *path = g_variant_get_string (variant, NULL);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(o)", path));
g_variant_unref (variant);
}
}
static void
_component_destroy_cb (BusComponent *component,
BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
g_assert (BUS_IS_COMPONENT (component));
ibus->registered_components = g_list_remove (ibus->registered_components, component);
/* remove engines from engine_list */
GList *engines = bus_component_get_engines (component);
GList *p;
for (p = engines; p != NULL; p = p->next) {
if (g_list_find (ibus->register_engine_list, p->data)) {
ibus->register_engine_list = g_list_remove (ibus->register_engine_list, p->data);
g_object_unref (p->data);
}
}
g_list_free (engines);
g_object_unref (component);
bus_ibus_impl_check_global_engine (ibus);
}
/**
* _ibus_register_component:
*
* Implement the "RegisterComponent" method call of the
* org.freedesktop.IBus interface.
*/
static void
_ibus_register_component (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GVariant *variant = g_variant_get_child_value (parameters, 0);
IBusComponent *component =
(IBusComponent *) ibus_serializable_deserialize (variant);
if (!IBUS_IS_COMPONENT (component)) {
if (component)
g_object_unref (component);
g_dbus_method_invocation_return_error (
invocation, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"The first argument should be an IBusComponent.");
return;
}
BusConnection *connection = bus_connection_lookup (
g_dbus_method_invocation_get_connection (invocation));
BusFactoryProxy *factory = bus_factory_proxy_new (connection);
if (factory == NULL) {
g_object_unref (component);
g_dbus_method_invocation_return_error (
invocation, G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"Create factory failed.");
return;
}
g_object_ref_sink (component);
BusComponent *buscomp = bus_component_new (component, factory);
bus_component_set_destroy_with_factory (buscomp, TRUE);
g_object_unref (component);
g_object_unref (factory);
ibus->registered_components = g_list_append (ibus->registered_components,
g_object_ref_sink (buscomp));
GList *engines = bus_component_get_engines (buscomp);
g_list_foreach (engines, (GFunc) g_object_ref, NULL);
ibus->register_engine_list = g_list_concat (ibus->register_engine_list,
engines);
g_signal_connect (buscomp,
"destroy",
G_CALLBACK (_component_destroy_cb),
ibus);
g_dbus_method_invocation_return_value (invocation, NULL);
}
/**
* _ibus_get_engines:
*
* Implement the "Engines" method call of the org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_engines (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
GVariantBuilder builder;
GList *engines = NULL;
GList *p;
if (error) {
*error = NULL;
}
g_variant_builder_init (&builder, G_VARIANT_TYPE ("av"));
engines = g_hash_table_get_values (ibus->engine_table);
for (p = engines; p != NULL; p = p->next) {
g_variant_builder_add (
&builder, "v",
ibus_serializable_serialize ((IBusSerializable *) p->data));
}
g_list_free (engines);
return g_variant_builder_end (&builder);
}
static void
_ibus_list_engines_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GError *error = NULL;
GVariant *variant = NULL;
g_warning ("org.freedesktop.IBus.ListEngines() is deprecated!");
variant = _ibus_get_engines (ibus, connection, &error);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(@av)", variant));
}
/**
* _ibus_get_engines_by_names:
*
* Implement the "GetEnginesByNames" method call of the org.freedesktop.IBus interface.
*/
static void
_ibus_get_engines_by_names (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
const gchar **names = NULL;
g_variant_get (parameters, "(^a&s)", &names);
g_assert (names != NULL);
gint i = 0;
GVariantBuilder builder;
g_variant_builder_init (&builder, G_VARIANT_TYPE ("av"));
while (names[i] != NULL) {
IBusEngineDesc *desc = (IBusEngineDesc *) g_hash_table_lookup (
ibus->engine_table, names[i++]);
if (desc == NULL)
continue;
g_variant_builder_add (
&builder,
"v",
ibus_serializable_serialize ((IBusSerializable *)desc));
}
g_dbus_method_invocation_return_value (invocation, g_variant_new ("(av)", &builder));
}
/**
* _ibus_get_active_engines:
*
* Implement the "ActiveEngines" method call of the
* org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_active_engines (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
GVariantBuilder builder;
GList *p;
if (error) {
*error = NULL;
}
g_variant_builder_init (&builder, G_VARIANT_TYPE ("av"));
for (p = ibus->register_engine_list; p != NULL; p = p->next) {
g_variant_builder_add (
&builder, "v",
ibus_serializable_serialize ((IBusSerializable *) p->data));
}
return g_variant_builder_end (&builder);
}
static void
_ibus_list_active_engines_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GError *error = NULL;
GVariant *variant = NULL;
g_warning ("org.freedesktop.IBus.ListActiveEngines() is deprecated!");
variant = _ibus_get_active_engines (ibus, connection, &error);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(@av)", variant));
}
/**
* _ibus_exit:
*
* Implement the "Exit" method call of the org.freedesktop.IBus interface.
*/
static void
_ibus_exit (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
gboolean restart = FALSE;
g_variant_get (parameters, "(b)", &restart);
g_dbus_method_invocation_return_value (invocation, NULL);
/* Make sure the reply has been sent out before exit */
g_dbus_connection_flush_sync (
g_dbus_method_invocation_get_connection (invocation),
NULL,
NULL);
bus_server_quit (restart);
}
/**
* _ibus_ping:
*
* Implement the "Ping" method call of the org.freedesktop.IBus interface.
*/
static void
_ibus_ping (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
g_dbus_method_invocation_return_value (invocation, parameters);
}
/**
* _ibus_get_use_sys_layout:
*
* Implement the "UseSysLayout" method call of the
* org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_use_sys_layout (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
if (error) {
*error = NULL;
}
return g_variant_new_boolean (ibus->use_sys_layout);
}
static void
_ibus_get_use_sys_layout_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GError *error = NULL;
GVariant *variant = NULL;
g_warning ("org.freedesktop.IBus.GetUseSysLayout() is deprecated!");
variant = _ibus_get_use_sys_layout (ibus, connection, &error);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(b)", g_variant_get_boolean (variant)));
g_variant_unref (variant);
}
/**
* _ibus_get_use_global_engine:
*
* Implement the "UseGlobalEngine" method call of the
* org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_use_global_engine (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
if (error) {
*error = NULL;
}
return g_variant_new_boolean (ibus->use_global_engine);
}
static void
_ibus_get_use_global_engine_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GError *error = NULL;
GVariant *variant = NULL;
g_warning ("org.freedesktop.IBus.GetUseGlobalEngine() is deprecated!");
variant = _ibus_get_use_global_engine (ibus, connection, &error);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(b)", g_variant_get_boolean (variant)));
g_variant_unref (variant);
}
/**
* _ibus_get_global_engine:
*
* Implement the "GlobalEngine" method call of the
* org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_global_engine (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
IBusEngineDesc *desc = NULL;
GVariant *retval = NULL;
if (error) {
*error = NULL;
}
do {
if (!ibus->use_global_engine)
break;
BusInputContext *context = ibus->focused_context;
if (context == NULL)
context = ibus->fake_context;
desc = bus_input_context_get_engine_desc (context);
if (desc == NULL)
break;
GVariant *variant = ibus_serializable_serialize (
(IBusSerializable *) desc);
// Set type "v" for introspection_xml.
retval = g_variant_new_variant (variant);
if (!retval) {
g_set_error (error,
G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"Failed to serialize engine desc.");
}
return retval;
} while (0);
g_set_error (error,
G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"No global engine.");
return NULL;
}
static void
_ibus_get_global_engine_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GError *error = NULL;
GVariant *variant = NULL;
g_warning ("org.freedesktop.IBus.GetGlobalEngine() is deprecated!");
variant = _ibus_get_global_engine (ibus, connection, &error);
if (variant == NULL) {
g_dbus_method_invocation_return_error (
invocation,
G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"%s", error->message);
g_error_free (error);
} else {
GVariant *retval = g_variant_get_variant (variant);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(v)", retval));
g_variant_unref (variant);
}
}
struct _SetGlobalEngineData {
BusIBusImpl *ibus;
GDBusMethodInvocation *invocation;
};
typedef struct _SetGlobalEngineData SetGlobalEngineData;
static void
_ibus_set_global_engine_ready_cb (BusInputContext *context,
GAsyncResult *res,
SetGlobalEngineData *data)
{
BusIBusImpl *ibus = data->ibus;
GError *error = NULL;
if (!bus_input_context_set_engine_by_desc_finish (context, res, &error)) {
g_dbus_method_invocation_return_error (data->invocation,
G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Set global engine failed: %s",
error->message);
g_error_free (error);
}
else {
g_dbus_method_invocation_return_value (data->invocation, NULL);
BusEngineProxy *engine = bus_input_context_get_engine (context);
if (ibus->use_global_engine && (context != ibus->focused_context)) {
/* context and ibus->focused_context don't match. This means that
* the focus is moved before _ibus_set_global_engine() asynchronous
* call finishes. In this case, the engine for the context currently
* being focused hasn't been updated. Update the engine here so that
* subsequent _ibus_get_global_engine() call could return a
* consistent engine name. */
if (engine && ibus->focused_context != NULL) {
g_object_ref (engine);
bus_input_context_set_engine (context, NULL);
bus_input_context_set_emoji_extension (context, NULL);
bus_input_context_set_engine (ibus->focused_context, engine);
if (ibus->enable_emoji_extension) {
bus_input_context_set_emoji_extension (
ibus->focused_context,
ibus->emoji_extension);
} else {
bus_input_context_set_emoji_extension (
ibus->focused_context,
NULL);
}
g_object_unref (engine);
}
}
if (engine && ibus->extension_register_keys) {
bus_engine_proxy_panel_extension_register_keys (
engine,
ibus->extension_register_keys);
}
}
g_object_unref (ibus);
g_slice_free (SetGlobalEngineData, data);
}
/**
* _ibus_set_global_engine:
*
* Implement the "SetGlobalEngine" method call of the
* org.freedesktop.IBus interface.
*/
static void
_ibus_set_global_engine (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
if (!ibus->use_global_engine) {
g_dbus_method_invocation_return_error (invocation,
G_DBUS_ERROR, G_DBUS_ERROR_FAILED,
"Global engine feature is disabled.");
return;
}
BusInputContext *context = ibus->focused_context;
if (context == NULL)
context = ibus->fake_context;
const gchar *engine_name = NULL;
g_variant_get (parameters, "(&s)", &engine_name);
IBusEngineDesc *desc = bus_ibus_impl_get_engine_desc(ibus, engine_name);
if (desc == NULL) {
g_dbus_method_invocation_return_error (invocation,
G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Cannot find engine %s.",
engine_name);
return;
}
SetGlobalEngineData *data = g_slice_new0 (SetGlobalEngineData);
data->ibus = g_object_ref (ibus);
data->invocation = invocation;
bus_input_context_set_engine_by_desc (context,
desc,
g_gdbus_timeout, /* timeout in msec. */
NULL, /* we do not cancel the call. */
(GAsyncReadyCallback) _ibus_set_global_engine_ready_cb,
data);
}
/**
* _ibus_get_global_engine_enabled:
*
* Implement the "GlobalEngineEnabled" method call of the
* org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_global_engine_enabled (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
gboolean enabled = FALSE;
if (error) {
*error = NULL;
}
do {
if (!ibus->use_global_engine)
break;
BusInputContext *context = ibus->focused_context;
if (context == NULL)
context = ibus->fake_context;
if (context == NULL)
break;
enabled = TRUE;
} while (0);
return g_variant_new_boolean (enabled);
}
static void
_ibus_is_global_engine_enabled_depre (BusIBusImpl *ibus,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
GDBusConnection *connection =
g_dbus_method_invocation_get_connection (invocation);
GError *error = NULL;
GVariant *variant = NULL;
g_warning ("org.freedesktop.IBus.IsGlobalEngineEnabled() is deprecated!");
variant = _ibus_get_global_engine_enabled (ibus, connection, &error);
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(b)", g_variant_get_boolean (variant)));
g_variant_unref (variant);
}
/**
* _ibus_set_preload_engines:
*
* Implement the "PreloadEngines" method call of the
* org.freedesktop.IBus interface.
*/
static gboolean
_ibus_set_preload_engines (BusIBusImpl *ibus,
GDBusConnection *connection,
GVariant *value,
GError **error)
{
int i, j;
const gchar **names = NULL;
IBusEngineDesc *desc = NULL;
BusComponent *component = NULL;
BusFactoryProxy *factory = NULL;
GPtrArray *array = g_ptr_array_new ();
if (error) {
*error = NULL;
}
g_variant_get (value, "^a&s", &names);
for (i = 0; names[i] != NULL; i++) {
gboolean has_component = FALSE;
desc = bus_ibus_impl_get_engine_desc(ibus, names[i]);
if (desc == NULL) {
g_set_error (error,
G_DBUS_ERROR,
G_DBUS_ERROR_FAILED,
"Cannot find engine %s.",
names[i]);
g_ptr_array_free (array, FALSE);
return FALSE;
}
component = bus_component_from_engine_desc (desc);
factory = bus_component_get_factory (component);
if (factory != NULL) {
continue;
}
for (j = 0; j < array->len; j++) {
if (component == (BusComponent *) g_ptr_array_index (array, j)) {
has_component = TRUE;
break;
}
}
if (!has_component) {
g_ptr_array_add (array, component);
}
}
for (j = 0; j < array->len; j++) {
bus_component_start ((BusComponent *) g_ptr_array_index (array, j),
g_verbose);
}
g_ptr_array_free (array, FALSE);
bus_ibus_impl_property_changed (ibus, "PreloadEngines", value);
return TRUE;
}
/**
* _ibus_get_embed_preedit_text:
*
* Implement the "EmbedPreeditText" method call of
* the org.freedesktop.IBus interface.
*/
static GVariant *
_ibus_get_embed_preedit_text (BusIBusImpl *ibus,
GDBusConnection *connection,
GError **error)
{
if (error) {
*error = NULL;
}
return g_variant_new_boolean (ibus->embed_preedit_text);
}
/**
* _ibus_set_embed_preedit_text:
*
* Implement the "EmbedPreeditText" method call of
* the org.freedesktop.IBus interface.
*/
static gboolean
_ibus_set_embed_preedit_text (BusIBusImpl *ibus,
GDBusConnection *connection,
GVariant *value,
GError **error)
{
if (error) {
*error = NULL;
}
gboolean embed_preedit_text = g_variant_get_boolean (value);
if (embed_preedit_text != ibus->embed_preedit_text) {
ibus->embed_preedit_text = embed_preedit_text;
bus_ibus_impl_property_changed (ibus, "EmbedPreeditText", value);
}
return TRUE;
}
/**
* bus_ibus_impl_service_method_call:
*
* Handle a D-Bus method call whose destination and interface name are
* both "org.freedesktop.IBus"
*/
static void
bus_ibus_impl_service_method_call (IBusService *service,
GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation)
{
if (g_strcmp0 (interface_name, IBUS_INTERFACE_IBUS) != 0) {
IBUS_SERVICE_CLASS (bus_ibus_impl_parent_class)->service_method_call (
service, connection, sender, object_path,
interface_name, method_name,
parameters, invocation);
return;
}
/* all methods in the xml definition above should be listed here. */
static const struct {
const gchar *method_name;
void (* method_callback) (BusIBusImpl *,
GVariant *,
GDBusMethodInvocation *);
} methods [] = {
/* IBus interface */
{ "CreateInputContext", _ibus_create_input_context },
{ "RegisterComponent", _ibus_register_component },
{ "GetEnginesByNames", _ibus_get_engines_by_names },
{ "Exit", _ibus_exit },
{ "Ping", _ibus_ping },
{ "SetGlobalEngine", _ibus_set_global_engine },
/* Start of deprecated methods */
{ "GetAddress", _ibus_get_address_depre },
{ "CurrentInputContext", _ibus_current_input_context_depre },
{ "ListEngines", _ibus_list_engines_depre },
{ "ListActiveEngines", _ibus_list_active_engines_depre },
{ "GetUseSysLayout", _ibus_get_use_sys_layout_depre },
{ "GetUseGlobalEngine", _ibus_get_use_global_engine_depre },
{ "GetGlobalEngine", _ibus_get_global_engine_depre },
{ "IsGlobalEngineEnabled", _ibus_is_global_engine_enabled_depre },
/* End of deprecated methods */
};
gint i;
for (i = 0; i < G_N_ELEMENTS (methods); i++) {
if (g_strcmp0 (methods[i].method_name, method_name) == 0) {
methods[i].method_callback ((BusIBusImpl *) service,
parameters,
invocation);
return;
}
}
g_warning ("service_method_call received an unknown method: %s",
method_name ? method_name : "(null)");
}
/**
* bus_ibus_impl_service_get_property:
*
* Handle org.freedesktop.DBus.Properties.Get
*/
static GVariant *
bus_ibus_impl_service_get_property (IBusService *service,
GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GError **error)
{
gint i;
static const struct {
const gchar *method_name;
GVariant * (* method_callback) (BusIBusImpl *,
GDBusConnection *,
GError **);
} methods [] = {
{ "Address", _ibus_get_address },
{ "CurrentInputContext", _ibus_get_current_input_context },
{ "Engines", _ibus_get_engines },
{ "ActiveEngines", _ibus_get_active_engines },
{ "GlobalEngine", _ibus_get_global_engine },
{ "EmbedPreeditText", _ibus_get_embed_preedit_text },
};
if (g_strcmp0 (interface_name, IBUS_INTERFACE_IBUS) != 0) {
return IBUS_SERVICE_CLASS (
bus_ibus_impl_parent_class)->service_get_property (
service, connection, sender, object_path,
interface_name, property_name,
error);
}
for (i = 0; i < G_N_ELEMENTS (methods); i++) {
if (g_strcmp0 (methods[i].method_name, property_name) == 0) {
return methods[i].method_callback ((BusIBusImpl *) service,
connection,
error);
}
}
g_warning ("service_get_property received an unknown property: %s",
property_name ? property_name : "(null)");
return NULL;
}
/**
* bus_ibus_impl_service_set_property:
*
* Handle org.freedesktop.DBus.Properties.Set
*/
static gboolean
bus_ibus_impl_service_set_property (IBusService *service,
GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GVariant *value,
GError **error)
{
gint i;
static const struct {
const gchar *method_name;
gboolean (* method_callback) (BusIBusImpl *,
GDBusConnection *,
GVariant *,
GError **);
} methods [] = {
{ "PreloadEngines", _ibus_set_preload_engines },
{ "EmbedPreeditText", _ibus_set_embed_preedit_text },
};
if (g_strcmp0 (interface_name, IBUS_INTERFACE_IBUS) != 0) {
return IBUS_SERVICE_CLASS (
bus_ibus_impl_parent_class)->service_set_property (
service, connection, sender, object_path,
interface_name, property_name,
value, error);
}
for (i = 0; i < G_N_ELEMENTS (methods); i++) {
if (g_strcmp0 (methods[i].method_name, property_name) == 0) {
return methods[i].method_callback ((BusIBusImpl *) service,
connection,
value,
error);
}
}
g_warning ("service_set_property received an unknown property: %s",
property_name ? property_name : "(null)");
return FALSE;
}
BusIBusImpl *
bus_ibus_impl_get_default (void)
{
static BusIBusImpl *ibus = NULL;
if (ibus == NULL) {
ibus = (BusIBusImpl *) g_object_new (BUS_TYPE_IBUS_IMPL,
"object-path", IBUS_PATH_IBUS,
NULL);
}
return ibus;
}
BusFactoryProxy *
bus_ibus_impl_lookup_factory (BusIBusImpl *ibus,
const gchar *path)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
BusFactoryProxy *factory;
factory = (BusFactoryProxy *) g_hash_table_lookup (ibus->factory_dict, path);
return factory;
}
IBusKeymap *
bus_ibus_impl_get_keymap (BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
return ibus->keymap;
}
/**
* bus_ibus_impl_registry_init:
*
* Initialize IBusRegistry.
*/
static void
bus_ibus_impl_registry_init (BusIBusImpl *ibus)
{
GList *p;
GList *components;
IBusRegistry *registry = ibus_registry_new ();
ibus->registry = NULL;
ibus->components = NULL;
ibus->engine_table = g_hash_table_new (g_str_hash, g_str_equal);
if (g_strcmp0 (g_cache, "none") == 0) {
/* Only load registry, but not read and write cache. */
ibus_registry_load (registry);
}
else if (g_strcmp0 (g_cache, "refresh") == 0) {
/* Load registry and overwrite the cache. */
ibus_registry_load (registry);
ibus_registry_save_cache (registry, TRUE);
}
else if (g_strcmp0 (g_cache, "auto") == 0) {
/* Load registry from cache. If the cache does not exist or
* it is outdated, then generate it.
*/
if (ibus_registry_load_cache (registry, FALSE) == FALSE ||
ibus_registry_check_modification (registry)) {
ibus_object_destroy (IBUS_OBJECT (registry));
registry = ibus_registry_new ();
if (ibus_registry_load_cache (registry, TRUE) == FALSE ||
ibus_registry_check_modification (registry)) {
ibus_object_destroy (IBUS_OBJECT (registry));
registry = ibus_registry_new ();
ibus_registry_load (registry);
ibus_registry_save_cache (registry, TRUE);
}
}
}
ibus->registry = registry;
components = ibus_registry_get_components (registry);
for (p = components; p != NULL; p = p->next) {
IBusComponent *component = (IBusComponent *) p->data;
BusComponent *buscomp = bus_component_new (component,
NULL /* factory */);
GList *engines = NULL;
GList *p1;
g_object_ref_sink (buscomp);
ibus->components = g_list_append (ibus->components, buscomp);
engines = bus_component_get_engines (buscomp);
for (p1 = engines; p1 != NULL; p1 = p1->next) {
IBusEngineDesc *desc = (IBusEngineDesc *) p1->data;
const gchar *name = ibus_engine_desc_get_name (desc);
if (g_hash_table_lookup (ibus->engine_table, name) == NULL) {
g_hash_table_insert (ibus->engine_table,
(gpointer) name,
desc);
} else {
g_message ("Engine %s is already registered by other component",
name);
}
}
g_list_free (engines);
}
g_list_free (components);
g_signal_connect (ibus->registry,
"changed",
G_CALLBACK (_registry_changed_cb),
ibus);
ibus_registry_start_monitor_changes (ibus->registry);
}
static void
bus_ibus_impl_registry_destroy (BusIBusImpl *ibus)
{
g_list_free_full (ibus->components, g_object_unref);
ibus->components = NULL;
g_clear_pointer (&ibus->engine_table, g_hash_table_destroy);
/* g_clear_pointer() does not set the cast. */
ibus_object_destroy (IBUS_OBJECT (ibus->registry));
ibus->registry = NULL;
if (ibus->extension_register_keys)
g_clear_pointer (&ibus->extension_register_keys, g_variant_unref);
}
static gint
_component_is_name_cb (BusComponent *component,
const gchar *name)
{
g_assert (BUS_IS_COMPONENT (component));
g_assert (name);
return g_strcmp0 (bus_component_get_name (component), name);
}
static void
bus_ibus_impl_component_name_owner_changed (BusIBusImpl *ibus,
const gchar *name,
const gchar *old_name,
const gchar *new_name)
{
BusComponent *component;
BusFactoryProxy *factory;
g_assert (BUS_IS_IBUS_IMPL (ibus));
g_assert (name);
g_assert (old_name);
g_assert (new_name);
component = bus_ibus_impl_lookup_component_by_name (ibus, name);
if (component == NULL) {
/* name is a unique name, or a well-known name we don't know. */
return;
}
if (g_strcmp0 (old_name, "") != 0) {
/* the component is stopped. */
factory = bus_component_get_factory (component);
if (factory != NULL) {
ibus_proxy_destroy ((IBusProxy *) factory);
}
}
if (g_strcmp0 (new_name, "") != 0) {
/* the component is started. */
BusConnection *connection =
bus_dbus_impl_get_connection_by_name (BUS_DEFAULT_DBUS,
new_name);
if (connection == NULL)
return;
factory = bus_factory_proxy_new (connection);
if (factory == NULL)
return;
bus_component_set_factory (component, factory);
g_object_unref (factory);
}
}
BusComponent *
bus_ibus_impl_lookup_component_by_name (BusIBusImpl *ibus,
const gchar *name)
{
GList *p;
g_assert (BUS_IS_IBUS_IMPL (ibus));
g_assert (name);
p = g_list_find_custom (ibus->components,
name,
(GCompareFunc) _component_is_name_cb);
if (p) {
return (BusComponent *) p->data;
}
else {
return NULL;
}
}
/**
* bus_ibus_impl_property_changed
*
* Send a "PropertiesChanged" D-Bus signal for a property to buses
* (connections) that are listening to the signal.
*/
static void
bus_ibus_impl_property_changed (BusIBusImpl *service,
const gchar *property_name,
GVariant *value)
{
GDBusMessage *message =
g_dbus_message_new_signal ("/org/freedesktop/IBus",
"org.freedesktop.DBus.Properties",
"PropertiesChanged");
/* set a non-zero serial to make libdbus happy */
g_dbus_message_set_serial (message, 1);
g_dbus_message_set_sender (message, "org.freedesktop.IBus");
GVariantBuilder *builder = g_variant_builder_new (G_VARIANT_TYPE_ARRAY);
g_variant_builder_add (builder, "{sv}", property_name, value);
g_dbus_message_set_body (message,
g_variant_new ("(sa{sv}as)",
"org.freedesktop.IBus",
builder,
NULL));
g_variant_builder_unref (builder);
bus_dbus_impl_dispatch_message_by_rule (BUS_DEFAULT_DBUS, message, NULL);
g_object_unref (message);
}
/**
* bus_ibus_impl_emit_signal:
*
* Send a D-Bus signal to buses (connections) that are listening to the signal.
*/
static void
bus_ibus_impl_emit_signal (BusIBusImpl *ibus,
const gchar *signal_name,
GVariant *parameters)
{
GDBusMessage *message = g_dbus_message_new_signal ("/org/freedesktop/IBus",
"org.freedesktop.IBus",
signal_name);
/* set a non-zero serial to make libdbus happy */
g_dbus_message_set_serial (message, 1);
g_dbus_message_set_sender (message, "org.freedesktop.IBus");
if (parameters)
g_dbus_message_set_body (message, parameters);
bus_dbus_impl_dispatch_message_by_rule (BUS_DEFAULT_DBUS, message, NULL);
g_object_unref (message);
}
static void
bus_ibus_impl_registry_changed (BusIBusImpl *ibus)
{
bus_ibus_impl_emit_signal (ibus, "RegistryChanged", NULL);
}
static void
bus_ibus_impl_global_engine_changed (BusIBusImpl *ibus)
{
const gchar *name = ibus->global_engine_name ? ibus->global_engine_name : "";
bus_ibus_impl_emit_signal (ibus, "GlobalEngineChanged",
g_variant_new ("(s)", name));
}
gboolean
bus_ibus_impl_is_use_sys_layout (BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
return ibus->use_sys_layout;
}
gboolean
bus_ibus_impl_is_embed_preedit_text (BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
return ibus->embed_preedit_text;
}
BusInputContext *
bus_ibus_impl_get_focused_input_context (BusIBusImpl *ibus)
{
g_assert (BUS_IS_IBUS_IMPL (ibus));
return ibus->focused_context;
}
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