add timezone-geoclue + tests

1 files changed, 248 insertions, 0 deletions

diff --git a/src/timezone-geoclue.cpp b/src/timezone-geoclue.cpp
new file mode 100644
index 0000000..f6d1f5e
--- /dev/null
+++ b/src/timezone-geoclue.cpp
@@ -0,0 +1,248 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * Authors:
+ *   Charles Kerr <charles.kerr@canonical.com>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <datetime/timezone-geoclue.h>
+
+#define GEOCLUE_BUS_NAME "org.freedesktop.Geoclue.Master"
+
+namespace unity {
+namespace indicator {
+namespace datetime {
+
+
+GeoclueTimezone::GeoclueTimezone():
+    cancellable_(g_cancellable_new())
+{
+    g_bus_get(G_BUS_TYPE_SESSION, cancellable_, on_bus_got, this);
+}
+
+GeoclueTimezone::~GeoclueTimezone()
+{
+    g_cancellable_cancel(cancellable_);
+    g_object_unref(cancellable_);
+
+    if (signal_subscription_)
+        g_dbus_connection_signal_unsubscribe(connection_, signal_subscription_);
+
+    g_object_unref(connection_);
+}
+
+/***
+****
+***/
+
+void
+GeoclueTimezone::on_bus_got(GObject * source G_GNUC_UNUSED, GAsyncResult * res, gpointer gself)
+{
+    GError * error;
+    GDBusConnection * connection;
+
+    error = nullptr;
+    connection = g_bus_get_finish(res, &error);
+    if (error)
+    {
+        if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+            g_warning("Couldn't get bus: %s", error->message);
+
+        g_error_free(error);
+    }
+    else
+    {
+        auto self = static_cast<GeoclueTimezone*>(gself);
+
+        self->connection_ = connection;
+
+        g_dbus_connection_call(self->connection_,
+                               GEOCLUE_BUS_NAME,
+                               "/org/freedesktop/Geoclue/Master",
+                               "org.freedesktop.Geoclue.Master",
+                               "Create",
+                               nullptr, // parameters
+                               G_VARIANT_TYPE("(o)"),
+                               G_DBUS_CALL_FLAGS_NONE,
+                               -1,
+                               self->cancellable_,
+                               on_client_created,
+                               self);
+    }
+}
+
+void
+GeoclueTimezone::on_client_created(GObject * source, GAsyncResult * res, gpointer gself)
+{
+    GVariant * result;
+
+    if ((result = call_finish(source, res)))
+    {
+        auto self = static_cast<GeoclueTimezone*>(gself);
+
+        GVariant * child = g_variant_get_child_value(result, 0);
+        self->client_object_path_ = g_variant_get_string(child, nullptr);
+        g_variant_unref(child);
+        g_variant_unref(result);
+
+        self->signal_subscription_ = g_dbus_connection_signal_subscribe(
+                    self->connection_,
+                    GEOCLUE_BUS_NAME,
+                    "org.freedesktop.Geoclue.Address", // inteface
+                    "AddressChanged", // signal name
+                    self->client_object_path_.c_str(), // object path
+                    nullptr, // arg0
+                    G_DBUS_SIGNAL_FLAGS_NONE,
+                    on_address_changed,
+                    self,
+                    nullptr);
+
+        g_dbus_connection_call(self->connection_,
+                               GEOCLUE_BUS_NAME,
+                               self->client_object_path_.c_str(),
+                               "org.freedesktop.Geoclue.MasterClient",
+                               "SetRequirements",
+                               g_variant_new("(iibi)", 2, 0, FALSE, 1023),
+                               nullptr,
+                               G_DBUS_CALL_FLAGS_NONE,
+                               -1,
+                               self->cancellable_,
+                               on_requirements_set,
+                               self);
+    }
+}
+
+void
+GeoclueTimezone::on_address_changed(GDBusConnection * connection      G_GNUC_UNUSED,
+                                    const gchar     * sender_name     G_GNUC_UNUSED,
+                                    const gchar     * object_path     G_GNUC_UNUSED,
+                                    const gchar     * interface_name  G_GNUC_UNUSED,
+                                    const gchar     * signal_name     G_GNUC_UNUSED,
+                                    GVariant        * parameters,
+                                    gpointer          gself)
+{
+    static_cast<GeoclueTimezone*>(gself)->setTimezoneFromAddressVariant(parameters);
+}
+
+void
+GeoclueTimezone::on_requirements_set(GObject * source, GAsyncResult * res, gpointer gself)
+{
+    GVariant * result;
+
+    if ((result = call_finish(source, res)))
+    {
+        auto self = static_cast<GeoclueTimezone*>(gself);
+
+        g_dbus_connection_call(self->connection_,
+                               GEOCLUE_BUS_NAME,
+                               self->client_object_path_.c_str(),
+                               "org.freedesktop.Geoclue.MasterClient",
+                               "AddressStart",
+                               nullptr,
+                               nullptr,
+                               G_DBUS_CALL_FLAGS_NONE,
+                               -1,
+                               self->cancellable_,
+                               on_address_started,
+                               self);
+
+        g_variant_unref(result);
+    }
+}
+
+void
+GeoclueTimezone::on_address_started(GObject * source, GAsyncResult * res, gpointer gself)
+{
+    GVariant * result;
+
+    if ((result = call_finish(source, res)))
+    {
+        auto self = static_cast<GeoclueTimezone*>(gself);
+
+        g_dbus_connection_call(self->connection_,
+                               GEOCLUE_BUS_NAME,
+                               self->client_object_path_.c_str(),
+                               "org.freedesktop.Geoclue.Address",
+                               "GetAddress",
+                               nullptr,
+                               G_VARIANT_TYPE("(ia{ss}(idd))"),
+                               G_DBUS_CALL_FLAGS_NONE,
+                               -1,
+                               self->cancellable_,
+                               on_address_got,
+                               self);
+
+        g_variant_unref(result);
+    }
+}
+
+void
+GeoclueTimezone::on_address_got(GObject * source, GAsyncResult * res, gpointer gself)
+{
+    GVariant * result;
+
+    if ((result = call_finish(source, res)))
+    {
+        static_cast<GeoclueTimezone*>(gself)->setTimezoneFromAddressVariant(result);
+        g_variant_unref(result);
+    }
+}
+
+void
+GeoclueTimezone::setTimezoneFromAddressVariant(GVariant * variant)
+{
+    g_return_if_fail(g_variant_is_of_type(variant, G_VARIANT_TYPE("(ia{ss}(idd))")));
+
+    const gchar * timezone_string = nullptr;
+    GVariant * dict = g_variant_get_child_value(variant, 1);
+    if (dict)
+    {
+        if (g_variant_lookup(dict, "timezone", "&s", &timezone_string))
+            timezone.set(timezone_string);
+
+        g_variant_unref(dict);
+    }
+}
+
+GVariant*
+GeoclueTimezone::call_finish(GObject * source, GAsyncResult * res)
+{
+    GError * error;
+    GVariant * result;
+
+    error = nullptr;
+    result = g_dbus_connection_call_finish(G_DBUS_CONNECTION(source), res, &error);
+
+    if (error)
+    {
+            if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED))
+                g_warning("AddressStart() failed: %s", error->message);
+
+            g_error_free(error);
+
+            g_clear_pointer(&result, g_variant_unref);
+    }
+
+    return result;
+}
+
+/****
+*****
+****/
+
+} // namespace datetime
+} // namespace indicator
+} // namespace unity
+