spiegel-keyman/linux/ibus-keyman/src/keyman-service.c
2024-12-10 10:26:44 +01:00

418 lines
12 KiB
C

/* vim:set et sts=4: */
/*
* Keyman Input Method for IBUS (The Input Bus)
*
* Copyright (C) 2018-2023 SIL Global
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 3 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
* General Public License for more details.
*
* You should have received a copy of the GNU 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
*
*/
/*
This file is based on work from Mousetweaks
Copyright © 2007-2010 Gerd Kohlberger <gerdko gmail com>
*/
#include <gio/gio.h>
#include "engine.h"
#include "keyman-service.h"
struct _KeymanServicePrivate
{
guint owner_id;
GDBusNodeInfo *ispec;
IBusEngine *engine;
gchar * name;
gchar * ldmlfile;
};
enum {
PROP_0,
PROP_NAME,
PROP_LDMLFILE
};
static const gchar introspection_xml[] =
"<node>"
" <interface name='com.Keyman'>"
" <property type='s' name='LDMLFile' access='read'/>"
" <property type='s' name='Name' access='read'/>"
" <method name='SendText'>"
" <arg type='s' name='text' direction='in' />"
" </method>"
" </interface>"
"</node>";
static void km_service_bus_acquired (GDBusConnection *connection,
const gchar *name,
gpointer data);
G_DEFINE_TYPE_WITH_PRIVATE(KeymanService, km_service, G_TYPE_OBJECT)
static void
km_service_init (KeymanService *service)
{
KeymanServicePrivate *priv;
GError *error = NULL;
g_message("WDG: km_service_init");
service->priv = priv = (KeymanServicePrivate*)km_service_get_instance_private(service);
priv->name = g_strdup ("None");
priv->ldmlfile = g_strdup ("");
priv->owner_id = g_bus_own_name (G_BUS_TYPE_SESSION,
KEYMAN_DBUS_NAME,
G_BUS_NAME_OWNER_FLAGS_NONE,
km_service_bus_acquired,
NULL, NULL,
service, NULL);
priv->ispec = g_dbus_node_info_new_for_xml (introspection_xml, &error);
if (error)
{
g_warning ("%s\n", error->message);
g_error_free (error);
}
}
static void
km_service_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
KeymanService *service = KM_SERVICE (object);
switch (prop_id)
{
case PROP_NAME:
if (service->priv->name)
{
g_free(service->priv->name);
}
service->priv->name = g_value_dup_string (value);
break;
case PROP_LDMLFILE:
if (service->priv->ldmlfile)
{
g_free(service->priv->ldmlfile);
}
service->priv->ldmlfile = g_value_dup_string (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
km_service_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
KeymanService *service = KM_SERVICE (object);
switch (prop_id)
{
case PROP_NAME:
g_value_set_string (value, service->priv->name);
break;
case PROP_LDMLFILE:
g_value_set_string (value, service->priv->ldmlfile);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
km_service_dispose (GObject *object)
{
g_message("WDG: km_service_dispose");
KeymanServicePrivate *priv = KM_SERVICE (object)->priv;
if (priv->owner_id)
{
g_bus_unown_name (priv->owner_id);
priv->owner_id = 0;
}
if (priv->ispec)
{
g_dbus_node_info_unref (priv->ispec);
priv->ispec = NULL;
}
if (priv->name)
{
g_free(priv->name);
}
if (priv->ldmlfile)
{
g_free(priv->ldmlfile);
}
G_OBJECT_CLASS (km_service_parent_class)->dispose (object);
}
static void
km_service_class_init (KeymanServiceClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = km_service_get_property;
object_class->set_property = km_service_set_property;
object_class->dispose = km_service_dispose;
g_object_class_install_property (object_class,
PROP_NAME,
g_param_spec_string ("name",
"Name",
"Name of the currently active Keyman keyboard",
"None",
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
g_object_class_install_property (object_class,
PROP_LDMLFILE,
g_param_spec_string ("ldmlfile",
"LDML file",
"On screen keyboard file for the currently active Keyman keyboard",
"",
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
}
static void
handle_method_call(
GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *method_name,
GVariant *parameters,
GDBusMethodInvocation *invocation,
gpointer user_data)
{
KeymanService *service = KM_SERVICE(user_data);
gsize sz;
if (g_strcmp0(method_name, "SendText") == 0) {
GVariant *param = g_variant_get_child_value(parameters, 0);
gchar *text = g_variant_dup_string(param, &sz);
km_service_send_text(service, text);
g_dbus_method_invocation_return_value(invocation, NULL);
g_free(text);
g_variant_unref(param);
}
}
static GVariant *
handle_get_property (GDBusConnection *connection,
const gchar *sender,
const gchar *path,
const gchar *interface_name,
const gchar *property,
GError **error,
KeymanService *service)
{
GVariant *ret = NULL;
if (g_strcmp0 (property, "Name") == 0)
{
ret = g_variant_new_string (service->priv->name);
}
else if (g_strcmp0 (property, "LDMLFile") == 0)
{
ret = g_variant_new_string (service->priv->ldmlfile);
}
return ret;
}
static gboolean
handle_set_property (GDBusConnection *connection,
const gchar *sender,
const gchar *path,
const gchar *interface,
const gchar *property,
GVariant *value,
GError **error,
KeymanService *service)
{
gsize sz;
if (g_strcmp0 (property, "Name") == 0)
{
km_service_set_name (service, g_variant_dup_string (value, &sz));
}
else if (g_strcmp0 (property, "LDMLFile") == 0)
{
km_service_set_ldmlfile (service, g_variant_dup_string (value, &sz));
}
return TRUE;
}
static const GDBusInterfaceVTable interface_vtable =
{
(GDBusInterfaceMethodCallFunc)handle_method_call,
(GDBusInterfaceGetPropertyFunc)handle_get_property,
(GDBusInterfaceSetPropertyFunc)handle_set_property
};
static void
emit_property_changed (GObject *object,
GParamSpec *pspec,
GDBusConnection *connection)
{
KeymanService *service = KM_SERVICE (object);
GError *error = NULL;
GVariantBuilder builder, inv_builder;
GVariant *prop_v;
g_variant_builder_init (&builder, G_VARIANT_TYPE_ARRAY);
g_variant_builder_init (&inv_builder, G_VARIANT_TYPE ("as"));
if (g_strcmp0 (pspec->name, "name") == 0)
{
g_variant_builder_add (&builder, "{sv}", "Name",
g_variant_new_string (service->priv->name));
}
else if (g_strcmp0 (pspec->name, "ldmlfile") == 0)
{
g_variant_builder_add (&builder, "{sv}", "LDMLFile",
g_variant_new_string (service->priv->ldmlfile));
}
prop_v = g_variant_new ("(sa{sv}as)",
KEYMAN_DBUS_IFACE,
&builder, &inv_builder);
if (!g_dbus_connection_emit_signal (connection, NULL,
KEYMAN_DBUS_PATH,
"org.freedesktop.DBus.Properties",
"PropertiesChanged",
prop_v, &error))
{
g_warning ("%s\n", error->message);
g_error_free (error);
}
}
static void
km_service_bus_acquired (GDBusConnection *connection,
const gchar *name,
gpointer data)
{
KeymanService *service = data;
if (service->priv->ispec) {
GError *error = NULL;
g_dbus_connection_register_object (connection,
KEYMAN_DBUS_PATH,
service->priv->ispec->interfaces[0],
&interface_vtable,
service, NULL, &error);
if (error)
{
g_warning ("%s", error->message);
g_error_free (error);
}
g_signal_connect (service, "notify",
G_CALLBACK (emit_property_changed), connection);
}
}
KeymanService *
km_service_get_default(IBusEngine *engine)
{
static KeymanService *service = NULL;
// if (service)
// {
// g_free(service);
// service = g_object_new (KM_TYPE_SERVICE, NULL);
// g_object_add_weak_pointer (G_OBJECT (service), (gpointer *) &service);
// }
if (!service)
{
service = g_object_new(KM_TYPE_SERVICE, NULL);
g_object_add_weak_pointer (G_OBJECT (service), (gpointer *) &service);
}
KeymanServicePrivate *priv = KM_SERVICE(service)->priv;
priv->engine = engine;
return service;
}
void
km_service_set_name (KeymanService *service,
const gchar *name)
{
g_return_if_fail (KM_IS_SERVICE (service));
if (g_strcmp0(name,service->priv->name) != 0)
{
g_free(service->priv->name);
service->priv->name = g_strdup(name);
g_object_notify (G_OBJECT (service), "name");
}
}
// const gchar *
// km_service_get_name (KeymanService *service)
// {
// g_return_val_if_fail (KM_IS_SERVICE (service), -1);
// return service->priv->name;
// }
void
km_service_set_ldmlfile (KeymanService *service,
const gchar *xml)
{
g_return_if_fail (KM_IS_SERVICE (service));
if (g_strcmp0(xml,service->priv->ldmlfile) != 0)
{
g_free(service->priv->ldmlfile);
service->priv->ldmlfile = g_strdup(xml);
g_object_notify (G_OBJECT (service), "ldmlfile");
}
}
// const gchar *
// km_service_get_ldmlfile (KeymanService *service)
// {
// g_return_val_if_fail (KM_IS_SERVICE (service), -1);
// return service->priv->ldmlfile;
// }
void
km_service_send_text(KeymanService *service, const gchar *text) {
g_return_if_fail(KM_IS_SERVICE(service));
// engine will be NULL unless a keyman keyboard is active
if (!service->priv->engine)
return;
ibus_keyman_set_text(service->priv->engine, text);
}