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Purism-Calls/plugins/mm/calls-mm-provider.c
Julian Sparber e911f391c6
Use correct parent class when chaining up overridden functions
How `g_type_class_peek ()` was used it didn't return the correct parent
class in most cases.
G_DEFINE_TYPE macro creates a pointer we can use to get the parent
class `n_p_parent_class`.
Because we didn't use the correct parent class the object initialisation
wasn't fully completed for some GtkWidgets.
See https://developer.gnome.org/gobject/stable/chapter-gobject.html#gobject-instantiation
for more information.

This commit makes use of the `n_p_parent_class pointer` created for this
specific use case where ever possible.

Fixes: https://source.puri.sm/Librem5/calls/issues/118
2020-02-19 12:49:58 +01:00

475 lines
11 KiB
C

/*
* Copyright (C) 2018 Purism SPC
*
* This file is part of Calls.
*
* Calls 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.
*
* Calls 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 Calls. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Bob Ham <bob.ham@puri.sm>
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#include "calls-mm-provider.h"
#include "calls-provider.h"
#include "calls-mm-origin.h"
#include "calls-message-source.h"
#include "calls-origin.h"
#include <libmm-glib.h>
#include <libpeas/peas.h>
#include <glib/gi18n.h>
struct _CallsMMProvider
{
GObject parent_instance;
/* The status property */
gchar *status;
/** ID for the D-Bus watch */
guint watch_id;
/** ModemManager object proxy */
MMManager *mm;
/** Map of D-Bus object paths to origins */
GHashTable *origins;
};
static void calls_mm_provider_message_source_interface_init (CallsProviderInterface *iface);
static void calls_mm_provider_provider_interface_init (CallsProviderInterface *iface);
G_DEFINE_DYNAMIC_TYPE_EXTENDED
(CallsMMProvider, calls_mm_provider, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE_DYNAMIC (CALLS_TYPE_MESSAGE_SOURCE,
calls_mm_provider_message_source_interface_init)
G_IMPLEMENT_INTERFACE_DYNAMIC (CALLS_TYPE_PROVIDER,
calls_mm_provider_provider_interface_init))
enum {
PROP_0,
PROP_STATUS,
PROP_LAST_PROP,
};
static const gchar *
get_name (CallsProvider *iface)
{
return "ModemManager";
}
static GList *
get_origins (CallsProvider *iface)
{
CallsMMProvider *self = CALLS_MM_PROVIDER (iface);
return g_hash_table_get_values (self->origins);
}
static void
set_status (CallsMMProvider *self,
const gchar *new_status)
{
if (strcmp (self->status, new_status) == 0)
{
return;
}
g_free (self->status);
self->status = g_strdup (new_status);
g_object_notify (G_OBJECT (self), "status");
}
static void
update_status (CallsMMProvider *self)
{
const gchar *s;
if (!self->mm)
{
s = _("ModemManager unavailable");
}
else if (g_hash_table_size (self->origins) == 0)
{
s = _("No voice-capable modem available");
}
else
{
s = _("Normal");
}
set_status (self, s);
}
static void
add_origin (CallsMMProvider *self,
GDBusObject *object)
{
MMObject *mm_obj;
CallsMMOrigin *origin;
const gchar *path;
path = g_dbus_object_get_object_path (object);
if (g_hash_table_contains (self->origins, path))
{
g_warning ("New voice interface on existing"
" origin with path `%s'", path);
return;
}
g_debug ("Adding new voice-capable modem `%s'",
path);
g_assert (MM_IS_OBJECT (object));
mm_obj = MM_OBJECT (object);
origin = calls_mm_origin_new (mm_obj);
g_hash_table_insert (self->origins,
mm_object_dup_path (mm_obj),
origin);
g_signal_emit_by_name (CALLS_PROVIDER (self),
"origin-added", origin);
update_status (self);
}
static void
interface_added_cb (CallsMMProvider *self,
GDBusObject *object,
GDBusInterface *interface)
{
GDBusInterfaceInfo *info;
info = g_dbus_interface_get_info (interface);
g_debug ("ModemManager interface `%s' found on object `%s'",
info->name,
g_dbus_object_get_object_path (object));
if (g_strcmp0 (info->name,
"org.freedesktop.ModemManager1.Modem.Voice") == 0)
{
add_origin (self, object);
}
}
static void
remove_modem_object (CallsMMProvider *self,
const gchar *path,
GDBusObject *object)
{
gpointer *origin;
origin = g_hash_table_lookup (self->origins, path);
if (!origin)
{
return;
}
g_assert (CALLS_IS_ORIGIN (origin));
g_signal_emit_by_name (CALLS_PROVIDER (self),
"origin-removed", CALLS_ORIGIN (origin));
g_hash_table_remove (self->origins, path);
update_status (self);
}
static void
interface_removed_cb (CallsMMProvider *self,
GDBusObject *object,
GDBusInterface *interface)
{
const gchar *path;
GDBusInterfaceInfo *info;
path = g_dbus_object_get_object_path (object);
info = g_dbus_interface_get_info (interface);
g_debug ("ModemManager interface `%s' removed on object `%s'",
info->name, path);
if (g_strcmp0 (info->name,
"org.freedesktop.ModemManager1.Modem.Voice") == 0)
{
remove_modem_object (self, path, object);
}
}
static void
add_mm_object (CallsMMProvider *self, GDBusObject *object)
{
GList *ifaces, *node;
ifaces = g_dbus_object_get_interfaces (object);
for (node = ifaces; node; node = node->next)
{
interface_added_cb (self, object,
G_DBUS_INTERFACE (node->data));
}
g_list_free_full (ifaces, g_object_unref);
}
static void
add_mm_objects (CallsMMProvider *self)
{
GList *objects, *node;
objects = g_dbus_object_manager_get_objects (G_DBUS_OBJECT_MANAGER (self->mm));
for (node = objects; node; node = node->next)
{
add_mm_object (self, G_DBUS_OBJECT (node->data));
}
g_list_free_full (objects, g_object_unref);
}
void
object_added_cb (CallsMMProvider *self,
GDBusObject *object)
{
g_debug ("ModemManager object `%s' added",
g_dbus_object_get_object_path (object));
add_mm_object (self, object);
}
void
object_removed_cb (CallsMMProvider *self,
GDBusObject *object)
{
const gchar *path;
path = g_dbus_object_get_object_path (object);
g_debug ("ModemManager object `%s' removed", path);
remove_modem_object (self, path, object);
}
static void
mm_manager_new_cb (GDBusConnection *connection,
GAsyncResult *res,
CallsMMProvider *self)
{
GError *error = NULL;
self->mm = mm_manager_new_finish (res, &error);
if (!self->mm)
{
g_error ("Error creating ModemManager Manager: %s",
error->message);
g_assert_not_reached();
}
g_signal_connect_swapped (G_DBUS_OBJECT_MANAGER (self->mm),
"interface-added",
G_CALLBACK (interface_added_cb), self);
g_signal_connect_swapped (G_DBUS_OBJECT_MANAGER (self->mm),
"interface-removed",
G_CALLBACK (interface_removed_cb), self);
g_signal_connect_swapped (G_DBUS_OBJECT_MANAGER (self->mm),
"object-added",
G_CALLBACK (object_added_cb), self);
g_signal_connect_swapped (G_DBUS_OBJECT_MANAGER (self->mm),
"object-removed",
G_CALLBACK (object_removed_cb), self);
update_status (self);
add_mm_objects (self);
}
static void
mm_appeared_cb (GDBusConnection *connection,
const gchar *name,
const gchar *name_owner,
CallsMMProvider *self)
{
g_debug ("ModemManager appeared on D-Bus");
mm_manager_new (connection,
G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_NONE,
NULL,
(GAsyncReadyCallback) mm_manager_new_cb,
self);
}
static gboolean
remove_origins_cb (const gchar *path,
CallsMMOrigin *origin,
CallsMMProvider *self)
{
g_signal_emit_by_name (CALLS_PROVIDER (self),
"origin-removed", CALLS_ORIGIN (origin));
return TRUE;
}
static void
clear_dbus (CallsMMProvider *self)
{
g_hash_table_foreach_remove (self->origins,
(GHRFunc)remove_origins_cb,
self);
g_clear_object (&self->mm);
}
void
mm_vanished_cb (GDBusConnection *connection,
const gchar *name,
CallsMMProvider *self)
{
g_debug ("ModemManager vanished from D-Bus");
clear_dbus (self);
update_status (self);
}
static void
constructed (GObject *object)
{
CallsMMProvider *self = CALLS_MM_PROVIDER (object);
self->watch_id =
g_bus_watch_name (G_BUS_TYPE_SYSTEM,
MM_DBUS_SERVICE,
G_BUS_NAME_WATCHER_FLAGS_AUTO_START,
(GBusNameAppearedCallback)mm_appeared_cb,
(GBusNameVanishedCallback)mm_vanished_cb,
self, NULL);
g_debug ("Watching for ModemManager");
G_OBJECT_CLASS (calls_mm_provider_parent_class)->constructed (object);
}
static void
get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
CallsMMProvider *self = CALLS_MM_PROVIDER (object);
switch (property_id) {
case PROP_STATUS:
g_value_set_string (value, self->status);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
dispose (GObject *object)
{
CallsMMProvider *self = CALLS_MM_PROVIDER (object);
if (self->watch_id)
{
g_bus_unwatch_name (self->watch_id);
self->watch_id = 0;
}
clear_dbus (self);
G_OBJECT_CLASS (calls_mm_provider_parent_class)->dispose (object);
}
static void
finalize (GObject *object)
{
CallsMMProvider *self = CALLS_MM_PROVIDER (object);
g_hash_table_unref (self->origins);
g_free (self->status);
G_OBJECT_CLASS (calls_mm_provider_parent_class)->finalize (object);
}
static void
calls_mm_provider_class_init (CallsMMProviderClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->constructed = constructed;
object_class->get_property = get_property;
object_class->dispose = dispose;
object_class->finalize = finalize;
g_object_class_override_property (object_class, PROP_STATUS, "status");
}
static void
calls_mm_provider_class_finalize (CallsMMProviderClass *klass)
{
}
static void
calls_mm_provider_message_source_interface_init (CallsProviderInterface *iface)
{
}
static void
calls_mm_provider_provider_interface_init (CallsProviderInterface *iface)
{
iface->get_name = get_name;
iface->get_origins = get_origins;
}
static void
calls_mm_provider_init (CallsMMProvider *self)
{
self->status = g_strdup (_("Initialised"));
self->origins = g_hash_table_new_full (g_str_hash, g_str_equal,
g_free, g_object_unref);
}
G_MODULE_EXPORT void
peas_register_types (PeasObjectModule *module)
{
calls_mm_provider_register_type (G_TYPE_MODULE (module));
peas_object_module_register_extension_type (module,
CALLS_TYPE_PROVIDER,
CALLS_TYPE_MM_PROVIDER);
}