[gnome-control-center/wip/hadess/wifi-freqs: 4/4] wifi: Show the frequency used by the Wi-Fi network

[Robert Ancell <rancell src gnome org>]

commit 5bf43b92ac91fb23e27791c5a7dbbcbead1667d4
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Aug 10 16:05:09 2018 +0200

    wifi: Show the frequency used by the Wi-Fi network
    
    https://bugzilla.gnome.org/show_bug.cgi?id=722550

 panels/network/connection-editor/ce-page-details.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)
---
diff --git a/panels/network/connection-editor/ce-page-details.c 
b/panels/network/connection-editor/ce-page-details.c
index 31252716d..3c7fbd51b 100644
--- a/panels/network/connection-editor/ce-page-details.c
+++ b/panels/network/connection-editor/ce-page-details.c
@@ -215,6 +215,7 @@ connect_details_page (CEPageDetails *self)
         NMSettingConnection *sc;
         guint speed;
         NMDeviceWifiCapabilities wifi_caps;
+        guint frequency;
         guint strength;
         NMDeviceState state;
         NMAccessPoint *active_ap;
@@ -231,10 +232,13 @@ connect_details_page (CEPageDetails *self)
         sc = nm_connection_get_setting_connection (self->connection);
         type = nm_setting_connection_get_connection_type (sc);
 
-        if (NM_IS_DEVICE_WIFI (self->device))
+        if (NM_IS_DEVICE_WIFI (self->device)) {
                 active_ap = nm_device_wifi_get_active_access_point (NM_DEVICE_WIFI (self->device));
-        else
+                frequency = nm_access_point_get_frequency (active_ap);
+        } else {
                 active_ap = NULL;
+                frequency = 0;
+        }
 
         state = self->device ? nm_device_get_state (self->device) : NM_DEVICE_STATE_DISCONNECTED;
 
@@ -263,7 +267,10 @@ connect_details_page (CEPageDetails *self)
                                 speed = nm_device_ethernet_get_speed (NM_DEVICE_ETHERNET (self->device));
                 }
         }
-        if (speed > 0)
+
+        if (speed > 0 && frequency > 0)
+                speed_label = g_strdup_printf (_("%d Mb/s (%1.1f GHz)"), speed, (float) (frequency) / 
1000.0);
+        else if (speed > 0)
                 speed_label = g_strdup_printf (_("%d Mb/s"), speed);
         gtk_label_set_label (self->speed_label, speed_label);
         gtk_widget_set_visible (GTK_WIDGET (self->speed_heading_label), speed_label != NULL);