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/*
* Copyright (C) 2017 Red Hat, Inc.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "cc-display-config-dbus.h"
#include "cc-display-config-manager-dbus.h"
#include <gio/gio.h>
struct _CcDisplayConfigManagerDBus
{
CcDisplayConfigManager parent_instance;
GCancellable *cancellable;
GDBusConnection *connection;
guint monitors_changed_id;
GVariant *current_state;
};
G_DEFINE_TYPE (CcDisplayConfigManagerDBus,
cc_display_config_manager_dbus,
CC_TYPE_DISPLAY_CONFIG_MANAGER)
static CcDisplayConfig *
cc_display_config_manager_dbus_get_current (CcDisplayConfigManager *pself)
{
CcDisplayConfigManagerDBus *self = CC_DISPLAY_CONFIG_MANAGER_DBUS (pself);
if (!self->current_state)
return NULL;
return g_object_new (CC_TYPE_DISPLAY_CONFIG_DBUS,
"state", self->current_state,
"connection", self->connection, NULL);
}
static void
got_current_state (GObject *object,
GAsyncResult *result,
gpointer data)
{
CcDisplayConfigManagerDBus *self;
GVariant *variant;
g_autoptr(GError) error = NULL;
variant = g_dbus_connection_call_finish (G_DBUS_CONNECTION (object),
result, &error);
if (!variant)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{
self = CC_DISPLAY_CONFIG_MANAGER_DBUS (data);
g_clear_pointer (&self->current_state, g_variant_unref);
_cc_display_config_manager_emit_changed (CC_DISPLAY_CONFIG_MANAGER (data));
g_warning ("Error calling GetCurrentState: %s", error->message);
}
return;
}
self = CC_DISPLAY_CONFIG_MANAGER_DBUS (data);
g_clear_pointer (&self->current_state, g_variant_unref);
self->current_state = variant;
_cc_display_config_manager_emit_changed (CC_DISPLAY_CONFIG_MANAGER (self));
}
static void
get_current_state (CcDisplayConfigManagerDBus *self)
{
g_dbus_connection_call (self->connection,
"org.gnome.Mutter.DisplayConfig",
"/org/gnome/Mutter/DisplayConfig",
"org.gnome.Mutter.DisplayConfig",
"GetCurrentState",
NULL,
NULL,
G_DBUS_CALL_FLAGS_NO_AUTO_START,
-1,
self->cancellable,
got_current_state,
self);
}
static void
monitors_changed (GDBusConnection *connection,
const gchar *sender_name,
const gchar *object_path,
const gchar *interface_name,
const gchar *signal_name,
GVariant *parameters,
gpointer data)
{
CcDisplayConfigManagerDBus *self = CC_DISPLAY_CONFIG_MANAGER_DBUS (data);
get_current_state (self);
}
static void
bus_gotten (GObject *object,
GAsyncResult *result,
gpointer data)
{
CcDisplayConfigManagerDBus *self;
GDBusConnection *connection;
g_autoptr(GError) error = NULL;
connection = g_bus_get_finish (result, &error);
if (!connection)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
{
_cc_display_config_manager_emit_changed (CC_DISPLAY_CONFIG_MANAGER (data));
g_warning ("Error obtaining DBus connection: %s", error->message);
}
return;
}
self = CC_DISPLAY_CONFIG_MANAGER_DBUS (data);
self->connection = connection;
self->monitors_changed_id =
g_dbus_connection_signal_subscribe (self->connection,
"org.gnome.Mutter.DisplayConfig",
"org.gnome.Mutter.DisplayConfig",
"MonitorsChanged",
"/org/gnome/Mutter/DisplayConfig",
NULL,
G_DBUS_SIGNAL_FLAGS_NONE,
monitors_changed,
self,
NULL);
get_current_state (self);
}
static void
cc_display_config_manager_dbus_init (CcDisplayConfigManagerDBus *self)
{
self->cancellable = g_cancellable_new ();
g_bus_get (G_BUS_TYPE_SESSION, self->cancellable, bus_gotten, self);
}
static void
cc_display_config_manager_dbus_finalize (GObject *object)
{
CcDisplayConfigManagerDBus *self = CC_DISPLAY_CONFIG_MANAGER_DBUS (object);
g_cancellable_cancel (self->cancellable);
g_clear_object (&self->cancellable);
if (self->monitors_changed_id && self->connection)
g_dbus_connection_signal_unsubscribe (self->connection,
self->monitors_changed_id);
g_clear_object (&self->connection);
g_clear_pointer (&self->current_state, g_variant_unref);
G_OBJECT_CLASS (cc_display_config_manager_dbus_parent_class)->finalize (object);
}
static void
cc_display_config_manager_dbus_class_init (CcDisplayConfigManagerDBusClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
CcDisplayConfigManagerClass *parent_class = CC_DISPLAY_CONFIG_MANAGER_CLASS (klass);
gobject_class->finalize = cc_display_config_manager_dbus_finalize;
parent_class->get_current = cc_display_config_manager_dbus_get_current;
}
CcDisplayConfigManager *
cc_display_config_manager_dbus_new (void)
{
return g_object_new (CC_TYPE_DISPLAY_CONFIG_MANAGER_DBUS, NULL);
}
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