[gnome-bluetooth] Add KILLSWITCH_STATE_NO_ADAPTER killswich state

[Bastien Nocera <hadess src gnome org>]

commit b2f2fa00c48ace0d233b61fe41cab64e7dd51e18
Author: Bastien Nocera <hadess hadess net>
Date:   Tue Oct 20 14:32:21 2009 +0100

    Add KILLSWITCH_STATE_NO_ADAPTER killswich state
    
    As killswitches for adapters can come and go, make sure that
    we tell the front-ends when an adapter goes away, so they can
    update their UI.

 lib/bluetooth-killswitch.c |    6 ++++++
 lib/bluetooth-killswitch.h |    1 +
 2 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/lib/bluetooth-killswitch.c b/lib/bluetooth-killswitch.c
index e700871..36f74e8 100644
--- a/lib/bluetooth-killswitch.c
+++ b/lib/bluetooth-killswitch.c
@@ -146,6 +146,9 @@ bluetooth_killswitch_get_state (BluetoothKillswitch *killswitch)
 
 	priv = BLUETOOTH_KILLSWITCH_GET_PRIVATE (killswitch);
 
+	if (priv->killswitches == NULL)
+		return KILLSWITCH_STATE_NO_ADAPTER;
+
 	for (l = priv->killswitches ; l ; l = l->next) {
 		BluetoothIndKillswitch *ind = l->data;
 
@@ -192,6 +195,9 @@ remove_killswitch (BluetoothKillswitch *killswitch,
 		if (ind->index == index) {
 			priv->killswitches = g_list_remove (priv->killswitches, ind);
 			g_message ("removing killswitch idx %d", index);
+			g_signal_emit (G_OBJECT (killswitch),
+				       signals[STATE_CHANGED],
+				       0, bluetooth_killswitch_get_state (killswitch));
 			return;
 		}
 	}
diff --git a/lib/bluetooth-killswitch.h b/lib/bluetooth-killswitch.h
index a8927c9..e97e011 100644
--- a/lib/bluetooth-killswitch.h
+++ b/lib/bluetooth-killswitch.h
@@ -30,6 +30,7 @@
 G_BEGIN_DECLS
 
 typedef enum {
+	KILLSWITCH_STATE_NO_ADAPTER = -1,
 	KILLSWITCH_STATE_SOFT_BLOCKED = 0,
 	KILLSWITCH_STATE_UNBLOCKED,
 	KILLSWITCH_STATE_HARD_BLOCKED