modules/geolocation: Follow InUse property change to give UI indication

The InUse property of the manager object is available in newer GeoClue2
versions. It shows if the service is in use by any application at the
moment. We use this to indicate the usage in the UI.
A blue geolocation icon means the service is in use, the grey icon means
it is inactive.

diff --git a/src/modules/geolocation/e_mod_main.c b/src/modules/geolocation/e_mod_main.c
index 4568d51..8b8f22d 100644 (file)
--- a/src/modules/geolocation/e_mod_main.c
+++ b/src/modules/geolocation/e_mod_main.c
@@ -39,7 +39,7 @@ struct _Instance
    Evas_Object     *popup_altitude;
    Evas_Object     *popup_accuracy;
    Evas_Object     *popup_description;
-   Eina_Bool       in_use;
+   int             in_use;
    Eldbus_Connection *conn;
    Eldbus_Service_Interface *iface;
    Eldbus_Proxy *manager;
@@ -341,6 +341,32 @@ cb_client_object_get(Eldbus_Proxy *proxy EINA_UNUSED, void *data, Eldbus_Pending
    eldbus_proxy_signal_handler_add(inst->client, "LocationUpdated", cb_client_location_updated_signal, inst);
 }
 
+static void
+cb_manager_props_changed(void *data, Eldbus_Proxy *proxy EINA_UNUSED, void *event)
+{
+   Eldbus_Proxy_Event_Property_Changed *ev;
+   int val;
+   Eina_Value v;
+   Instance *inst = data;
+
+   ev = event;
+   DBG("Manager property changed: %s", ev->name);
+
+   if (strcmp(ev->name, "InUse") == 0)
+     {
+        eina_value_setup(&v, EINA_VALUE_TYPE_INT);
+        eina_value_convert(ev->value, &v);
+        eina_value_get(&v, &val);
+        inst->in_use = val;
+        DBG("Manager InUse property changed to %i", inst->in_use);
+
+        if (inst->in_use)
+          edje_object_signal_emit(inst->icon, "e,state,location_on", "e");
+       else
+          edje_object_signal_emit(inst->icon, "e,state,location_off", "e");
+     }
+}
+
 static E_Gadcon_Client *
 _gc_init(E_Gadcon *gc, const char *name, const char *id, const char *style)
 {
@@ -368,7 +394,7 @@ _gc_init(E_Gadcon *gc, const char *name, const char *id, const char *style)
    inst->accuracy = 0.0;
    inst->altitude= 0.0 ;
    inst->description = NULL;
-   inst->in_use = EINA_FALSE;
+   inst->in_use = 0;
    edje_object_signal_emit(inst->icon, "e,state,location_off", "e");
 
    evas_object_event_callback_add(inst->icon,
@@ -392,6 +418,8 @@ _gc_init(E_Gadcon *gc, const char *name, const char *id, const char *style)
         return NULL;
      }
 
+   eldbus_proxy_event_callback_add(inst->manager, ELDBUS_PROXY_EVENT_PROPERTY_CHANGED, cb_manager_props_changed, inst);
+
    geo_clue2_manager_get_client_call(inst->manager, cb_client_object_get, inst);
 
    return gcc;