Bug 1029386: Add result handler for Bluetooth Core profile, r=shuang

The result-handler class contains a method for each interface
in the Core profile and a method for failed calls. The patch
also adds runnable classes that execute a result handler's
method on the main thread.

dom/bluetooth/bluedroid/BluetoothInterface.cpp

@@ -5,6 +5,8 @@
  * You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "BluetoothInterface.h"
+#include "nsAutoPtr.h"
+#include "nsThreadUtils.h"
 
 BEGIN_BLUETOOTH_NAMESPACE
 
@@ -12,6 +14,61 @@ template<class T>
 struct interface_traits
 { };
 
+//
+// Result handling
+//
+
+template <typename Obj, typename Res>
+class BluetoothInterfaceRunnable0 : public nsRunnable
+{
+public:
+  BluetoothInterfaceRunnable0(Obj* aObj, Res (Obj::*aMethod)())
+  : mObj(aObj)
+  , mMethod(aMethod)
+  {
+    MOZ_ASSERT(mObj);
+    MOZ_ASSERT(mMethod);
+  }
+
+  NS_METHOD
+  Run() MOZ_OVERRIDE
+  {
+    ((*mObj).*mMethod)();
+    return NS_OK;
+  }
+
+private:
+  nsRefPtr<Obj> mObj;
+  void (Obj::*mMethod)();
+};
+
+template <typename Obj, typename Res, typename Arg1>
+class BluetoothInterfaceRunnable1 : public nsRunnable
+{
+public:
+  BluetoothInterfaceRunnable1(Obj* aObj, Res (Obj::*aMethod)(Arg1),
+                              const Arg1& aArg1)
+  : mObj(aObj)
+  , mMethod(aMethod)
+  , mArg1(aArg1)
+  {
+    MOZ_ASSERT(mObj);
+    MOZ_ASSERT(mMethod);
+  }
+
+  NS_METHOD
+  Run() MOZ_OVERRIDE
+  {
+    ((*mObj).*mMethod)(mArg1);
+    return NS_OK;
+  }
+
+private:
+  nsRefPtr<Obj> mObj;
+  void (Obj::*mMethod)(Arg1);
+  Arg1 mArg1;
+};
+
 //
 // Socket Interface
 //
@@ -371,6 +428,32 @@ BluetoothAvrcpInterface::SetVolume(uint8_t aVolume)
 // Bluetooth Core Interface
 //
 
+typedef
+  BluetoothInterfaceRunnable0<BluetoothResultHandler, void>
+  BluetoothResultRunnable;
+
+typedef
+  BluetoothInterfaceRunnable1<BluetoothResultHandler, void, int>
+  BluetoothErrorRunnable;
+
+static nsresult
+DispatchBluetoothResult(BluetoothResultHandler* aRes,
+                        void (BluetoothResultHandler::*aMethod)(),
+                        int aStatus)
+{
+  MOZ_ASSERT(aRes);
+
+  nsRunnable* runnable;
+
+  if (aStatus == BT_STATUS_SUCCESS) {
+    runnable = new BluetoothResultRunnable(aRes, aMethod);
+  } else {
+    runnable = new
+      BluetoothErrorRunnable(aRes, &BluetoothResultHandler::OnError, aStatus);
+  }
+  NS_DispatchToMainThread(runnable);
+}
+
 /* returns the container structure of a variable; _t is the container's
  * type, _v the name of the variable, and _m is _v's field within _t
  */

dom/bluetooth/bluedroid/BluetoothInterface.h

@@ -181,6 +181,50 @@ private:
 // Bluetooth Core Interface
 //
 
+class BluetoothResultHandler
+{
+public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(BluetoothResultHandler)
+
+  virtual ~BluetoothResultHandler() { }
+
+  virtual void OnError(int aStatus)
+  {
+    BT_LOGR("received error code %d", aStatus);
+  }
+
+  virtual void Init() { }
+  virtual void Cleanup() { }
+  virtual void Enable() { }
+  virtual void Disable() { }
+
+  virtual void GetAdapterProperties() { }
+  virtual void GetAdapterProperty() { }
+  virtual void SetAdapterProperty() { }
+
+  virtual void GetRemoteDeviceProperties() { }
+  virtual void GetRemoteDeviceProperty() { }
+  virtual void SetRemoteDeviceProperty() { }
+
+  virtual void GetRemoteServiceRecord() { }
+  virtual void GetRemoteServices() { }
+
+  virtual void StartDiscovery() { }
+  virtual void CancelDiscovery() { }
+
+  virtual void CreateBond() { }
+  virtual void RemoveBond() { }
+  virtual void CancelBond() { }
+
+  virtual void PinReply() { }
+  virtual void SspReply() { }
+
+  virtual void DutModeConfigure() { }
+  virtual void DutModeSend() { }
+
+  virtual void LeTestMode() { }
+};
+
 class BluetoothInterface
 {
 public: