[gnome-settings-daemon/gnome-3-18] power: Sync IIO light sensor values right after claiming the interface

[Rui Matos <rtcm src gnome org>]

commit 7af4fae1808cde85bbecef33fdd08a3329740d08
Author: Rui Matos <tiagomatos gmail com>
Date:   Tue Jan 5 18:23:33 2016 +0100

    power: Sync IIO light sensor values right after claiming the interface
    
    In case the IIO sensor daemon doesn't change the values immediately
    after we claim the interface, we should get them to be in sync from
    the start.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=756539

 plugins/power/gsd-power-manager.c |   23 ++++++++++++++++-------
 1 files changed, 16 insertions(+), 7 deletions(-)
---
diff --git a/plugins/power/gsd-power-manager.c b/plugins/power/gsd-power-manager.c
index d03b9fe..f657bd8 100644
--- a/plugins/power/gsd-power-manager.c
+++ b/plugins/power/gsd-power-manager.c
@@ -213,6 +213,7 @@ static void      main_battery_or_ups_low_changed (GsdPowerManager *manager, gboo
 static gboolean  idle_is_session_inhibited (GsdPowerManager *manager, guint mask, gboolean *is_inhibited);
 static void      idle_triggered_idle_cb (GnomeIdleMonitor *monitor, guint watch_id, gpointer user_data);
 static void      idle_became_active_cb (GnomeIdleMonitor *monitor, guint watch_id, gpointer user_data);
+static void      iio_proxy_changed (GsdPowerManager *manager);
 
 G_DEFINE_TYPE (GsdPowerManager, gsd_power_manager, G_TYPE_OBJECT)
 
@@ -1007,6 +1008,9 @@ iio_proxy_claim_light (GsdPowerManager *manager, gboolean active)
                 g_warning ("Call to ii-proxy failed: %s", error->message);
                 g_error_free (error);
         }
+
+        if (active)
+                iio_proxy_changed (manager);
 }
 
 static void
@@ -2490,12 +2494,8 @@ on_rr_screen_acquired (GObject      *object,
 }
 
 static void
-iio_proxy_changed_cb (GDBusProxy *proxy,
-                      GVariant   *changed_properties,
-                      GStrv       invalidated_properties,
-                      gpointer    user_data)
+iio_proxy_changed (GsdPowerManager *manager)
 {
-        GsdPowerManager *manager = (GsdPowerManager *) user_data;
         GError *error = NULL;
         GVariant *val_has = NULL;
         GVariant *val_als = NULL;
@@ -2511,10 +2511,10 @@ iio_proxy_changed_cb (GDBusProxy *proxy,
                 return;
 
         /* get latest results, which do not have to be Lux */
-        val_has = g_dbus_proxy_get_cached_property (proxy, "HasAmbientLight");
+        val_has = g_dbus_proxy_get_cached_property (manager->priv->iio_proxy, "HasAmbientLight");
         if (val_has == NULL || !g_variant_get_boolean (val_has))
                 goto out;
-        val_als = g_dbus_proxy_get_cached_property (proxy, "LightLevel");
+        val_als = g_dbus_proxy_get_cached_property (manager->priv->iio_proxy, "LightLevel");
         if (val_als == NULL)
                 goto out;
         manager->priv->ambient_last_absolute = g_variant_get_double (val_als);
@@ -2553,6 +2553,15 @@ out:
 }
 
 static void
+iio_proxy_changed_cb (GDBusProxy *proxy,
+                      GVariant   *changed_properties,
+                      GStrv       invalidated_properties,
+                      gpointer    user_data)
+{
+        iio_proxy_changed ((GsdPowerManager *) user_data);
+}
+
+static void
 iio_proxy_appeared_cb (GDBusConnection *connection,
                        const gchar *name,
                        const gchar *name_owner,