From dcb5ddc560b51cc5eb59a2ef27d91cf279271f36 Mon Sep 17 00:00:00 2001 From: Guillaume Desmottes Date: Mon, 2 Sep 2013 14:21:12 +0200 Subject: add empathy-geoclue-helper Based on a proposed API on fdo#68658. May end up in geoclue at some point. https://bugzilla.gnome.org/show_bug.cgi?id=706627 --- libempathy-gtk/empathy-geoclue-helper.c | 523 ++++++++++++++++++++++++++++++++ 1 file changed, 523 insertions(+) create mode 100644 libempathy-gtk/empathy-geoclue-helper.c (limited to 'libempathy-gtk/empathy-geoclue-helper.c') diff --git a/libempathy-gtk/empathy-geoclue-helper.c b/libempathy-gtk/empathy-geoclue-helper.c new file mode 100644 index 000000000..97d4fc6d3 --- /dev/null +++ b/libempathy-gtk/empathy-geoclue-helper.c @@ -0,0 +1,523 @@ +/* + * empathy-geoclue-helper.c + * + * Copyright (C) 2013 Collabora Ltd. + * + * 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 St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "config.h" + +#include + +#include "empathy-geoclue-helper.h" + +#define DEBUG_FLAG EMPATHY_DEBUG_LOCATION +#include "empathy-debug.h" + +#define GEOCLUE_BUS_NAME "org.freedesktop.GeoClue2" + +/** + * SECTION: empathy-geoclue-helper + * @title: EmpathyGeoclueHelper + * @short_description: TODO + * + * TODO + */ + +/** + * EmpathyGeoclueHelper: + * + * Data structure representing a #EmpathyGeoclueHelper. + * + * Since: UNRELEASED + */ + +/** + * EmpathyGeoclueHelperClass: + * + * The class of a #EmpathyGeoclueHelper. + * + * Since: UNRELEASED + */ + +static void async_initable_iface_init (GAsyncInitableIface *iface); + +G_DEFINE_TYPE_WITH_CODE (EmpathyGeoclueHelper, empathy_geoclue_helper, + G_TYPE_OBJECT, + G_IMPLEMENT_INTERFACE (G_TYPE_ASYNC_INITABLE, async_initable_iface_init)); + +enum +{ + PROP_DISTANCE_THRESHOLD = 1, + PROP_LOCATION, + N_PROPS +}; + +enum +{ + SIG_LOCATION_CHANGED, + LAST_SIGNAL +}; + +static guint signals[LAST_SIGNAL]; + +struct _EmpathyGeoclueHelperPriv +{ + guint distance_threshold; + GClueLocation *location; + + gboolean started; + GClueClient *client; +}; + +static void +empathy_geoclue_helper_get_property (GObject *object, + guint property_id, + GValue *value, + GParamSpec *pspec) +{ + EmpathyGeoclueHelper *self = EMPATHY_GEOCLUE_HELPER (object); + + switch (property_id) + { + case PROP_DISTANCE_THRESHOLD: + g_value_set_uint (value, self->priv->distance_threshold); + break; + case PROP_LOCATION: + g_value_set_object (value, self->priv->location); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +empathy_geoclue_helper_set_property (GObject *object, + guint property_id, + const GValue *value, + GParamSpec *pspec) +{ + EmpathyGeoclueHelper *self = EMPATHY_GEOCLUE_HELPER (object); + + switch (property_id) + { + case PROP_DISTANCE_THRESHOLD: + self->priv->distance_threshold = g_value_get_uint (value); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + break; + } +} + +static void +empathy_geoclue_helper_constructed (GObject *object) +{ + //EmpathyGeoclueHelper *self = EMPATHY_GEOCLUE_HELPER (object); + void (*chain_up) (GObject *) = + ((GObjectClass *) empathy_geoclue_helper_parent_class)->constructed; + + chain_up (object); +} + +static void +empathy_geoclue_helper_dispose (GObject *object) +{ + EmpathyGeoclueHelper *self = EMPATHY_GEOCLUE_HELPER (object); + void (*chain_up) (GObject *) = + ((GObjectClass *) empathy_geoclue_helper_parent_class)->dispose; + + if (self->priv->started) + { + gclue_client_call_stop (self->priv->client, NULL, NULL, NULL); + + self->priv->started = FALSE; + } + + g_clear_object (&self->priv->location); + g_clear_object (&self->priv->client); + + chain_up (object); +} + +static void +empathy_geoclue_helper_finalize (GObject *object) +{ + //EmpathyGeoclueHelper *self = EMPATHY_GEOCLUE_HELPER (object); + void (*chain_up) (GObject *) = + ((GObjectClass *) empathy_geoclue_helper_parent_class)->finalize; + + chain_up (object); +} + +static void +empathy_geoclue_helper_class_init ( + EmpathyGeoclueHelperClass *klass) +{ + GObjectClass *oclass = G_OBJECT_CLASS (klass); + GParamSpec *spec; + + oclass->get_property = empathy_geoclue_helper_get_property; + oclass->set_property = empathy_geoclue_helper_set_property; + oclass->constructed = empathy_geoclue_helper_constructed; + oclass->dispose = empathy_geoclue_helper_dispose; + oclass->finalize = empathy_geoclue_helper_finalize; + + /** + * EmpathyGeoclueHelper:distance-threshold: + * + * TODO + * + * Since: UNRELEASED + */ + spec = g_param_spec_uint ("distance-threshold", "distance-threshold", + "DistanceThreshold", + 0, G_MAXUINT32, 0, + G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS); + g_object_class_install_property (oclass, PROP_DISTANCE_THRESHOLD, spec); + + /** + * EmpathyGeoclueHelper:location: + * + * TODO + * + * Since: UNRELEASED + */ + spec = g_param_spec_object ("location", "location", "GClueLocation", + GCLUE_TYPE_LOCATION, + G_PARAM_READABLE | G_PARAM_STATIC_STRINGS); + g_object_class_install_property (oclass, PROP_LOCATION, spec); + + /** + * EmpathyGeoclueHelper::location-changed: + * @self: a #EmpathyGeoclueHelper + * + * TODO + * + * Since: UNRELEASED + */ + signals[SIG_LOCATION_CHANGED] = g_signal_new ("location-changed", + G_OBJECT_CLASS_TYPE (klass), + G_SIGNAL_RUN_LAST, + 0, NULL, NULL, NULL, + G_TYPE_NONE, + 1, GCLUE_TYPE_LOCATION); + + g_type_class_add_private (klass, sizeof (EmpathyGeoclueHelperPriv)); +} + +static void +empathy_geoclue_helper_init (EmpathyGeoclueHelper *self) +{ + self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, + EMPATHY_TYPE_GEOCLUE_HELPER, EmpathyGeoclueHelperPriv); +} + +static void +location_cb (GObject *source, + GAsyncResult *result, + gpointer user_data) +{ + EmpathyGeoclueHelper *self = user_data; + GError *error = NULL; + + g_clear_object (&self->priv->location); + + self->priv->location = gclue_location_proxy_new_finish (result, &error); + if (self->priv->location == NULL) + { + DEBUG ("Failed to create Location proxy: %s", error->message); + g_error_free (error); + } + + g_signal_emit (self, signals[SIG_LOCATION_CHANGED], 0, self->priv->location); + + g_object_notify (G_OBJECT (self), "location"); +} + +static void +location_updated_cb (GClueClient *client, + const gchar *old, + const gchar *new, + EmpathyGeoclueHelper *self) +{ + gclue_location_proxy_new_for_bus (G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE, + GEOCLUE_BUS_NAME, new, + NULL, location_cb, self); +} + +static void +client_start_cb (GObject *source, + GAsyncResult *result, + gpointer user_data) +{ + GTask *task = user_data; + EmpathyGeoclueHelper *self = g_task_get_source_object (task); + GClueClient *client = GCLUE_CLIENT (source); + GError *error = NULL; + + if (!gclue_client_call_start_finish (client, result, &error)) + { + DEBUG ("Failed to start Geoclue client: %s", error->message); + g_error_free (error); + return; + } + + self->priv->started = TRUE; + + g_task_return_boolean (task, TRUE); + g_object_unref (task); +} + +static void +client_cb (GObject *source, + GAsyncResult *result, + gpointer user_data) +{ + GTask *task = user_data; + EmpathyGeoclueHelper *self = g_task_get_source_object (task); + GError *error = NULL; + + self->priv->client = gclue_client_proxy_new_finish (result, &error); + if (!gclue_client_proxy_new_for_bus_finish (result, &error)) + { + DEBUG ("Failed to create Geoclue client: %s", error->message); + g_task_return_error (task, error); + goto out; + } + + g_signal_connect_object (self->priv->client, "location-updated", + G_CALLBACK (location_updated_cb), self, 0); + + g_object_set (self->priv->client, + "distance-threshold", self->priv->distance_threshold, + NULL); + + g_task_return_boolean (task, TRUE); + +out: + g_object_unref (task); +} + +static void +get_client_cb (GObject *source, + GAsyncResult *result, + gpointer user_data) +{ + GTask *task = user_data; + GError *error = NULL; + gchar *path; + + if (!gclue_manager_call_get_client_finish (GCLUE_MANAGER (source), &path, + result, &error)) + { + DEBUG ("GetClient failed: %s", error->message); + g_task_return_error (task, error); + g_object_unref (task); + return; + } + + gclue_client_proxy_new_for_bus (G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE, + GEOCLUE_BUS_NAME, path, NULL, client_cb, task); + + g_free (path); +} + +static void +manager_cb (GObject *source, + GAsyncResult *result, + gpointer user_data) +{ + GTask *task = user_data; + GError *error = NULL; + GClueManager *mgr; + + mgr = gclue_manager_proxy_new_for_bus_finish (result, &error); + if (mgr == NULL) + { + DEBUG ("Failed to create Geoclue manager: %s", error->message); + g_task_return_error (task, error); + g_object_unref (task); + return; + } + + gclue_manager_call_get_client (mgr, NULL, get_client_cb, task); + g_object_unref (mgr); +} + +void +empathy_geoclue_helper_start_async (EmpathyGeoclueHelper *self, + GAsyncReadyCallback callback, + gpointer user_data) +{ + GTask *task; + + task = g_task_new (self, NULL, callback, user_data); + + if (self->priv->started) + { + g_task_return_boolean (task, TRUE); + g_object_unref (task); + return; + } + + gclue_client_call_start (self->priv->client, NULL, client_start_cb, task); +} + +gboolean +empathy_geoclue_helper_start_finish (EmpathyGeoclueHelper *self, + GAsyncResult *result, + GError **error) +{ + g_return_val_if_fail (g_task_is_valid (result, self), FALSE); + + return g_task_propagate_boolean (G_TASK (result), error); +} + +GClueLocation * +empathy_geoclue_helper_get_location (EmpathyGeoclueHelper *self) +{ + return self->priv->location; +} + +static void +empathy_geoclue_helper_init_async (GAsyncInitable *initable, + gint io_priority, + GCancellable *cancellable, + GAsyncReadyCallback callback, + gpointer user_data) +{ + GTask *task; + + task = g_task_new (initable, cancellable, callback, user_data); + + gclue_manager_proxy_new_for_bus (G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE, + GEOCLUE_BUS_NAME, "/org/freedesktop/GeoClue2/Manager", + NULL, manager_cb, task); +} + +static gboolean +empathy_geoclue_helper_init_finish (GAsyncInitable *initable, + GAsyncResult *result, + GError **error) +{ + g_return_val_if_fail (g_task_is_valid (result, initable), FALSE); + + return g_task_propagate_boolean (G_TASK (result), error); +} + +static void +async_initable_iface_init (GAsyncInitableIface *iface) +{ + iface->init_async = empathy_geoclue_helper_init_async; + iface->init_finish = empathy_geoclue_helper_init_finish; +} + +void +empathy_geoclue_helper_new_async (guint distance_threshold, + GAsyncReadyCallback callback, + gpointer user_data) +{ + g_async_initable_new_async (EMPATHY_TYPE_GEOCLUE_HELPER, + G_PRIORITY_DEFAULT, NULL, callback, user_data, + "distance-threshold", distance_threshold, + NULL); +} + +EmpathyGeoclueHelper * +empathy_geoclue_helper_new_finish (GAsyncResult *result, + GError **error) +{ + GObject *object, *source_object; + + source_object = g_async_result_get_source_object (result); + + object = g_async_initable_new_finish (G_ASYNC_INITABLE (source_object), + result, error); + g_object_unref (source_object); + + if (object != NULL) + return EMPATHY_GEOCLUE_HELPER (object); + else + return NULL; +} + +static void +new_started_cb (GObject *source, + GAsyncResult *result, + gpointer user_data) +{ + EmpathyGeoclueHelper *self = EMPATHY_GEOCLUE_HELPER (source); + GTask *new_started_task = user_data; + GError *error = NULL; + + if (!empathy_geoclue_helper_start_finish (self, result, &error)) + { + g_task_return_error (new_started_task, error); + g_object_unref (self); + goto out; + } + + /* pass ownership of self to g_task_return_error */ + g_task_return_pointer (new_started_task, self, g_object_unref); + +out: + g_object_unref (new_started_task); +} + +static void +new_started_init_cb (GObject *source, + GAsyncResult *result, + gpointer user_data) +{ + GTask *new_started_task = user_data; + EmpathyGeoclueHelper *self; + GError *error = NULL; + + self = empathy_geoclue_helper_new_finish (result, &error); + if (self == NULL) + { + g_task_return_error (new_started_task, error); + g_object_unref (new_started_task); + return; + } + + /* Pass owernship of 'self' to new_started_cb */ + empathy_geoclue_helper_start_async (self, new_started_cb, new_started_task); +} + +void +empathy_geoclue_helper_new_started_async (guint distance_threshold, + GAsyncReadyCallback callback, + gpointer user_data) +{ + GTask *new_started_task; + + new_started_task = g_task_new (NULL, NULL, callback, user_data); + + empathy_geoclue_helper_new_async (distance_threshold, new_started_init_cb, + new_started_task); +} + +EmpathyGeoclueHelper * +empathy_geoclue_helper_new_started_finish (GAsyncResult *result, + GError **error) +{ + g_return_val_if_fail (g_task_is_valid (result, NULL), NULL); + + return g_task_propagate_pointer (G_TASK (result), error); +} -- cgit v1.2.3