Add Linux support for the Bluetooth API.

device/bluetooth/bluetooth_pairing_chromeos.cc

-// Copyright 2014 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.
-
-#include "device/bluetooth/bluetooth_pairing_chromeos.h"
-
-#include "base/logging.h"
-#include "base/metrics/histogram.h"
-#include "device/bluetooth/bluetooth_device.h"
-#include "device/bluetooth/bluetooth_device_chromeos.h"
-
-using device::BluetoothDevice;
-
-namespace {
-
-// Histogram enumerations for pairing methods.
-enum UMAPairingMethod {
-  UMA_PAIRING_METHOD_NONE,
-  UMA_PAIRING_METHOD_REQUEST_PINCODE,
-  UMA_PAIRING_METHOD_REQUEST_PASSKEY,
-  UMA_PAIRING_METHOD_DISPLAY_PINCODE,
-  UMA_PAIRING_METHOD_DISPLAY_PASSKEY,
-  UMA_PAIRING_METHOD_CONFIRM_PASSKEY,
-  // NOTE: Add new pairing methods immediately above this line. Make sure to
-  // update the enum list in tools/histogram/histograms.xml accordingly.
-  UMA_PAIRING_METHOD_COUNT
-};
-
-// Number of keys that will be entered for a passkey, six digits plus the
-// final enter.
-const uint16 kPasskeyMaxKeysEntered = 7;
-
-}  // namespace
-
-namespace chromeos {
-
-BluetoothPairingChromeOS::BluetoothPairingChromeOS(
-    BluetoothDeviceChromeOS* device,
-    BluetoothDevice::PairingDelegate* pairing_delegate)
-    : device_(device),
-      pairing_delegate_(pairing_delegate),
-      pairing_delegate_used_(false) {
-  VLOG(1) << "Created BluetoothPairingChromeOS for "
-          << device_->GetAddress();
-}
-
-BluetoothPairingChromeOS::~BluetoothPairingChromeOS() {
-  VLOG(1) << "Destroying BluetoothPairingChromeOS for "
-          << device_->GetAddress();
-
-  if (!pairing_delegate_used_) {
-    UMA_HISTOGRAM_ENUMERATION("Bluetooth.PairingMethod",
-                              UMA_PAIRING_METHOD_NONE,
-                              UMA_PAIRING_METHOD_COUNT);
-  }
-
-  if (!pincode_callback_.is_null()) {
-    pincode_callback_.Run(
-        bluez::BluetoothAgentServiceProvider::Delegate::CANCELLED, "");
-  }
-
-  if (!passkey_callback_.is_null()) {
-    passkey_callback_.Run(
-        bluez::BluetoothAgentServiceProvider::Delegate::CANCELLED, 0);
-  }
-
-  if (!confirmation_callback_.is_null()) {
-    confirmation_callback_.Run(
-        bluez::BluetoothAgentServiceProvider::Delegate::CANCELLED);
-  }
-
-  pairing_delegate_ = NULL;
-}
-
-void BluetoothPairingChromeOS::RequestPinCode(
-    const bluez::BluetoothAgentServiceProvider::Delegate::PinCodeCallback&
-        callback) {
-  UMA_HISTOGRAM_ENUMERATION("Bluetooth.PairingMethod",
-                            UMA_PAIRING_METHOD_REQUEST_PINCODE,
-                            UMA_PAIRING_METHOD_COUNT);
-
-  ResetCallbacks();
-  pincode_callback_ = callback;
-  pairing_delegate_used_ = true;
-  pairing_delegate_->RequestPinCode(device_);
-}
-
-bool BluetoothPairingChromeOS::ExpectingPinCode() const {
-  return !pincode_callback_.is_null();
-}
-
-void BluetoothPairingChromeOS::SetPinCode(const std::string& pincode) {
-  if (pincode_callback_.is_null())
-    return;
-
-  pincode_callback_.Run(bluez::BluetoothAgentServiceProvider::Delegate::SUCCESS,
-                        pincode);
-  pincode_callback_.Reset();
-
-  // If this is not an outgoing connection to the device, clean up the pairing
-  // context since the pairing is done. The outgoing connection case is cleaned
-  // up in the callback for the underlying Pair() call.
-  if (!device_->IsConnecting())
-    device_->EndPairing();
-}
-
-void BluetoothPairingChromeOS::DisplayPinCode(const std::string& pincode) {
-  UMA_HISTOGRAM_ENUMERATION("Bluetooth.PairingMethod",
-                            UMA_PAIRING_METHOD_DISPLAY_PINCODE,
-                            UMA_PAIRING_METHOD_COUNT);
-
-  ResetCallbacks();
-  pairing_delegate_used_ = true;
-  pairing_delegate_->DisplayPinCode(device_, pincode);
-
-  // If this is not an outgoing connection to the device, the pairing context
-  // needs to be cleaned up again as there's no reliable indication of
-  // completion of incoming pairing.
-  if (!device_->IsConnecting())
-    device_->EndPairing();
-}
-
-void BluetoothPairingChromeOS::RequestPasskey(
-    const bluez::BluetoothAgentServiceProvider::Delegate::PasskeyCallback&
-        callback) {
-  UMA_HISTOGRAM_ENUMERATION("Bluetooth.PairingMethod",
-                            UMA_PAIRING_METHOD_REQUEST_PASSKEY,
-                            UMA_PAIRING_METHOD_COUNT);
-
-  ResetCallbacks();
-  passkey_callback_ = callback;
-  pairing_delegate_used_ = true;
-  pairing_delegate_->RequestPasskey(device_);
-}
-
-bool BluetoothPairingChromeOS::ExpectingPasskey() const {
-  return !passkey_callback_.is_null();
-}
-
-void BluetoothPairingChromeOS::SetPasskey(uint32 passkey) {
-  if (passkey_callback_.is_null())
-    return;
-
-  passkey_callback_.Run(bluez::BluetoothAgentServiceProvider::Delegate::SUCCESS,
-                        passkey);
-  passkey_callback_.Reset();
-
-  // If this is not an outgoing connection to the device, clean up the pairing
-  // context since the pairing is done. The outgoing connection case is cleaned
-  // up in the callback for the underlying Pair() call.
-  if (!device_->IsConnecting())
-    device_->EndPairing();
-}
-
-void BluetoothPairingChromeOS::DisplayPasskey(uint32 passkey) {
-  UMA_HISTOGRAM_ENUMERATION("Bluetooth.PairingMethod",
-                            UMA_PAIRING_METHOD_DISPLAY_PASSKEY,
-                            UMA_PAIRING_METHOD_COUNT);
-
-  ResetCallbacks();
-  pairing_delegate_used_ = true;
-  pairing_delegate_->DisplayPasskey(device_, passkey);
-
-}
-
-void BluetoothPairingChromeOS::KeysEntered(uint16 entered) {
-  pairing_delegate_used_ = true;
-  pairing_delegate_->KeysEntered(device_, entered);
-
-  // If this is not an outgoing connection to the device, the pairing context
-  // needs to be cleaned up again as there's no reliable indication of
-  // completion of incoming pairing.
-  if (entered >= kPasskeyMaxKeysEntered && !device_->IsConnecting())
-    device_->EndPairing();
-}
-
-void BluetoothPairingChromeOS::RequestConfirmation(
-    uint32 passkey,
-    const bluez::BluetoothAgentServiceProvider::Delegate::ConfirmationCallback&
-        callback) {
-  UMA_HISTOGRAM_ENUMERATION("Bluetooth.PairingMethod",
-                            UMA_PAIRING_METHOD_CONFIRM_PASSKEY,
-                            UMA_PAIRING_METHOD_COUNT);
-
-  ResetCallbacks();
-  confirmation_callback_ = callback;
-  pairing_delegate_used_ = true;
-  pairing_delegate_->ConfirmPasskey(device_, passkey);
-}
-
-void BluetoothPairingChromeOS::RequestAuthorization(
-    const bluez::BluetoothAgentServiceProvider::Delegate::ConfirmationCallback&
-        callback) {
-  UMA_HISTOGRAM_ENUMERATION("Bluetooth.PairingMethod",
-                            UMA_PAIRING_METHOD_NONE,
-                            UMA_PAIRING_METHOD_COUNT);
-
-  ResetCallbacks();
-  confirmation_callback_ = callback;
-  pairing_delegate_used_ = true;
-  pairing_delegate_->AuthorizePairing(device_);
-}
-
-bool BluetoothPairingChromeOS::ExpectingConfirmation() const {
-  return !confirmation_callback_.is_null();
-}
-
-void BluetoothPairingChromeOS::ConfirmPairing() {
-  if (confirmation_callback_.is_null())
-    return;
-
-  confirmation_callback_.Run(
-      bluez::BluetoothAgentServiceProvider::Delegate::SUCCESS);
-  confirmation_callback_.Reset();
-
-  // If this is not an outgoing connection to the device, clean up the pairing
-  // context since the pairing is done. The outgoing connection case is cleaned
-  // up in the callback for the underlying Pair() call.
-  if (!device_->IsConnecting())
-    device_->EndPairing();
-}
-
-bool BluetoothPairingChromeOS::RejectPairing() {
-  return RunPairingCallbacks(
-      bluez::BluetoothAgentServiceProvider::Delegate::REJECTED);
-}
-
-bool BluetoothPairingChromeOS::CancelPairing() {
-  return RunPairingCallbacks(
-      bluez::BluetoothAgentServiceProvider::Delegate::CANCELLED);
-}
-
-BluetoothDevice::PairingDelegate*
-BluetoothPairingChromeOS::GetPairingDelegate() const {
-  return pairing_delegate_;
-}
-
-void BluetoothPairingChromeOS::ResetCallbacks() {
-  pincode_callback_.Reset();
-  passkey_callback_.Reset();
-  confirmation_callback_.Reset();
-}
-
-bool BluetoothPairingChromeOS::RunPairingCallbacks(
-    bluez::BluetoothAgentServiceProvider::Delegate::Status status) {
-  pairing_delegate_used_ = true;
-
-  bool callback_run = false;
-  if (!pincode_callback_.is_null()) {
-    pincode_callback_.Run(status, "");
-    pincode_callback_.Reset();
-    callback_run = true;
-  }
-
-  if (!passkey_callback_.is_null()) {
-    passkey_callback_.Run(status, 0);
-    passkey_callback_.Reset();
-    callback_run = true;
-  }
-
-  if (!confirmation_callback_.is_null()) {
-    confirmation_callback_.Run(status);
-    confirmation_callback_.Reset();
-    callback_run = true;
-  }
-
-  // If this is not an outgoing connection to the device, clean up the pairing
-  // context since the pairing is done. The outgoing connection case is cleaned
-  // up in the callback for the underlying Pair() call.
-  if (!device_->IsConnecting())
-    device_->EndPairing();
-
-  return callback_run;
-}
-
-}  // namespace chromeos