Bug 778640 - Final version: Firing devicedisappeared event, r=qdot, r=smaug

---
 dom/bluetooth/BluetoothAdapter.cpp                 |   16 ++++++++++++++-
 dom/bluetooth/Makefile.in                          |    1 +
 .../nsIDOMBluetoothDeviceAddressEvent.idl          |   21 ++++++++++++++++++++
 js/xpconnect/src/event_impl_gen.conf.in            |    3 +++
 4 files changed, 40 insertions(+), 1 deletion(-)
 create mode 100644 dom/bluetooth/nsIDOMBluetoothDeviceAddressEvent.idl

dom/bluetooth/BluetoothAdapter.cpp

@@ -14,12 +14,14 @@
 #include "BluetoothTypes.h"
 #include "BluetoothReplyRunnable.h"
 #include "BluetoothUtils.h"
+#include "GeneratedEvents.h"
 
 #include "nsDOMClassInfo.h"
 #include "nsDOMEvent.h"
 #include "nsThreadUtils.h"
 #include "nsXPCOMCIDInternal.h"
 #include "nsIDOMDOMRequest.h"
+#include "nsIDOMBluetoothDeviceAddressEvent.h"
 #include "nsContentUtils.h"
 
 #include "mozilla/LazyIdleThread.h"
@@ -298,6 +300,18 @@ BluetoothAdapter::Notify(const BluetoothSignal& aData)
     nsRefPtr<BluetoothDevice> d = BluetoothDevice::Create(GetOwner(), mPath, aData.value());
     nsRefPtr<BluetoothDeviceEvent> e = BluetoothDeviceEvent::Create(d);
     e->Dispatch(ToIDOMEventTarget(), NS_LITERAL_STRING("devicefound"));
+  } else if (aData.name().EqualsLiteral("DeviceDisappeared")) {
+		const nsAString& deviceAddress = aData.value().get_nsString();
+
+    nsCOMPtr<nsIDOMEvent> event;
+    NS_NewDOMBluetoothDeviceAddressEvent(getter_AddRefs(event), nullptr, nullptr);
+
+    nsCOMPtr<nsIDOMBluetoothDeviceAddressEvent> e = do_QueryInterface(event);
+    e->InitBluetoothDeviceAddressEvent(NS_LITERAL_STRING("devicedisappeared"),
+                                       false, false, deviceAddress);
+    e->SetTrusted(true);
+    bool dummy;
+    DispatchEvent(event, &dummy);
   } else if (aData.name().EqualsLiteral("PropertyChanged")) {
     // Get BluetoothNamedValue, make sure array length is 1
     arr = aData.value().get_ArrayOfBluetoothNamedValue();

dom/bluetooth/Makefile.in

@@ -46,6 +46,7 @@ XPIDLSRCS = \
   nsIDOMBluetoothAdapter.idl \
   nsIDOMBluetoothDevice.idl \
   nsIDOMBluetoothDeviceEvent.idl \
+  nsIDOMBluetoothDeviceAddressEvent.idl \
   nsIDOMBluetoothPropertyEvent.idl \
   nsIDOMBluetoothPairingEvent.idl \
   $(NULL)

dom/bluetooth/nsIDOMBluetoothDeviceAddressEvent.idl

@@ -0,0 +1,21 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIDOMEvent.idl"
+
+[scriptable, builtinclass, uuid(afcb832f-bbb5-45fa-b703-f8185bd2d26d)]
+interface nsIDOMBluetoothDeviceAddressEvent : nsIDOMEvent
+{
+  readonly attribute DOMString  deviceAddress;
+
+  [noscript] void initBluetoothDeviceAddressEvent(in DOMString aType,
+                                                  in boolean aCanBubble,
+                                                  in boolean aCancelable,
+                                                  in DOMString aDeviceAddress);
+};
+
+dictionary BluetoothDeviceAddressEventInit : EventInit
+{
+  DOMString  deviceAddress;
+};

js/xpconnect/src/event_impl_gen.conf.in

@@ -21,6 +21,9 @@ simple_events = [
     'DeviceOrientationEvent',
     'DeviceLightEvent',
     'MozApplicationEvent',
+#ifdef MOZ_B2G_BT
+    'BluetoothDeviceAddressEvent',
+#endif
     'DeviceStorageChangeEvent'
   ]