Bluetooth: Profile support for Chrome OS

device/bluetooth/bluetooth_profile_experimental_chromeos.h

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef DEVICE_BLUETOOTH_BLUETOOTH_PROFILE_EXPERIMENTAL_CHROMEOS_H_
+#define DEVICE_BLUETOOTH_BLUETOOTH_PROFILE_EXPERIMENTAL_CHROMEOS_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "chromeos/chromeos_export.h"
+#include "chromeos/dbus/experimental_bluetooth_profile_service_provider.h"
+#include "dbus/object_path.h"
+#include "device/bluetooth/bluetooth_profile.h"
+
+namespace dbus {
+
+class FileDescriptor;
+
+}  // namespace dbus
+
+namespace device {
+
+class BluetoothAdapter;
+
+}  // namespace device
+
+namespace chromeos {
+
+// The BluetoothProfileExperimentalChromeOS class implements BluetoothProfile
+// for the Chrome OS platform using the Bluetooth Smart capable backend (there
+// is no implementation for the older backend). It will be renamed to
+// BluetoothProfileChromeOS, once the backend is the sole implementation.
+class CHROMEOS_EXPORT BluetoothProfileExperimentalChromeOS
+    : public device::BluetoothProfile,
+      private ExperimentalBluetoothProfileServiceProvider::Delegate {
+ public:
+  // BluetoothProfile override.
+  virtual void Unregister() OVERRIDE;
+  virtual void SetConnectionCallback(
+      const ConnectionCallback& callback) OVERRIDE;
+
+  // Return the UUID of the profile.
+  const std::string& uuid() const { return uuid_; }
+
+ private:
+  friend class BluetoothProfile;
+
+  BluetoothProfileExperimentalChromeOS();
+  virtual ~BluetoothProfileExperimentalChromeOS();
+
+  // Called by BluetoothProfile::Register to initialize the profile object
+  // asynchronously. |uuid|, |options| and |callback| are the arguments to
+  // BluetoothProfile::Register.
+  void Init(const std::string& uuid,
+            const device::BluetoothProfile::Options& options,
+            const ProfileCallback& callback);
+
+  // ExperimentalBluetoothProfileServiceProvider::Delegate override.
+  virtual void Release() OVERRIDE;
+  virtual void NewConnection(
+      const dbus::ObjectPath& device_path,
+      scoped_ptr<dbus::FileDescriptor> fd,
+      const ExperimentalBluetoothProfileServiceProvider::Delegate::Options&
+          options,
+      const ConfirmationCallback& callback) OVERRIDE;
+  virtual void RequestDisconnection(
+      const dbus::ObjectPath& device_path,
+      const ConfirmationCallback& callback) OVERRIDE;
+  virtual void Cancel() OVERRIDE;
+
+  // Called by dbus:: on completion of the D-Bus method call to register the
+  // profile object.
+  void OnRegisterProfile(const ProfileCallback& callback);
+  void OnRegisterProfileError(const ProfileCallback& callback,
+                              const std::string& error_name,
+                              const std::string& error_message);
+
+  // Called by dbus:: on completion of the D-Bus method call to unregister
+  // the profile object.
+  void OnUnregisterProfile();
+  void OnUnregisterProfileError(const std::string& error_name,
+                                const std::string& error_message);
+
+  // Method run once the file descriptor has been validated in order to get
+  // the default adapter, and method run once the default adapter has been
+  // obtained in order to get the device object to be passed to the connection
+  // callback.
+  //
+  // The |fd| argument is moved compared to the NewConnection() call since it
+  // becomes the result of a PostTaskAndReplyWithResult() call.
+  void GetAdapter(
+      const dbus::ObjectPath& device_path,
+      const ExperimentalBluetoothProfileServiceProvider::Delegate::Options&
+          options,
+      const ConfirmationCallback& callback,
+      scoped_ptr<dbus::FileDescriptor> fd);
+  void OnGetAdapter(
+      const dbus::ObjectPath& device_path,
+      const ExperimentalBluetoothProfileServiceProvider::Delegate::Options&
+          options,
+      const ConfirmationCallback& callback,
+      scoped_ptr<dbus::FileDescriptor> fd,
+      scoped_refptr<device::BluetoothAdapter>);
+
+  // UUID of the profile passed during initialization.
+  std::string uuid_;
+
+  // Object path of the local profile D-Bus object.
+  dbus::ObjectPath object_path_;
+
+  // Local profile D-Bus object used for receiving profile delegate methods
+  // from BlueZ.
+  scoped_ptr<ExperimentalBluetoothProfileServiceProvider> profile_;
+
+  // Callback used on both outgoing and incoming connections to pass the
+  // connected socket to profile object owner.
+  ConnectionCallback connection_callback_;
+
+  // Note: This should remain the last member so it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<BluetoothProfileExperimentalChromeOS> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothProfileExperimentalChromeOS);
+};
+
+}  // namespace chromeos
+
+#endif  // DEVICE_BLUETOOTH_BLUETOOTH_PROFILE_EXPERIMENTAL_CHROMEOS_H_