From abc3e28dc72d9641e2ce07d0d99a23ac23e4f3b6 Mon Sep 17 00:00:00 2001
From: Charles Kerr <charles.kerr@canonical.com>
Date: Fri, 6 Dec 2013 15:36:47 +0000
Subject: add a 'connected' property as a simple hook to whether or not we have
 any connected bluetooth devices

---
 src/bluetooth.vala |  3 +++
 src/bluez.vala     | 21 ++++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/bluetooth.vala b/src/bluetooth.vala
index b268701..c711e19 100644
--- a/src/bluetooth.vala
+++ b/src/bluetooth.vala
@@ -32,6 +32,9 @@ public interface Bluetooth: Object
      eg by a laptop's network killswitch */
   public abstract bool enabled { get; protected set; }
 
+  /* True if we have a connected device. */
+  public abstract bool connected { get; protected set; }
+
   /* Try to enable/disable bluetooth. This can fail if it's overridden
      by the system, eg by a laptop's network killswitch */
   public abstract void try_set_enabled (bool b);
diff --git a/src/bluez.vala b/src/bluez.vala
index 1a1f837..adbd4c4 100644
--- a/src/bluez.vala
+++ b/src/bluez.vala
@@ -414,6 +414,7 @@ public class Bluez: Bluetooth, Object
                                          supports_file_transfer));
 
     devices_changed ();
+    update_connected ();
   }
 
   /* update the 'enabled' property by looking at the killswitch state
@@ -424,7 +425,22 @@ public class Bluez: Bluetooth, Object
     debug (@"in upate_enabled, powered is $powered, blocked is $blocked");
     enabled = powered && !blocked;
   }
-    
+
+  private bool have_connected_device ()
+  {
+    var devices = get_devices();
+
+    foreach (var device in devices)
+      if (device.is_connected)
+        return true;
+
+    return false;
+  }
+
+  private void update_connected ()
+  {
+    connected = have_connected_device ();
+  }
 
   ////
   ////  Public API
@@ -444,6 +460,8 @@ public class Bluez: Bluetooth, Object
           device_connect (proxy);
         else
           device_disconnect (proxy);
+
+        update_connected ();
       }
   }
 
@@ -463,6 +481,7 @@ public class Bluez: Bluetooth, Object
   public bool supported { get; protected set; default = false; }
   public bool discoverable { get; protected set; default = false; }
   public bool enabled { get; protected set; default = false; }
+  public bool connected { get; protected set; default = false; }
 
   public void try_set_enabled (bool b)
   {
-- 
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