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// 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 <stdint.h>
#include <set>
#include <string>
#include "ash/ash_export.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/strings/string16.h"
#include "device/bluetooth/bluetooth_adapter.h"
#include "device/bluetooth/bluetooth_device.h"
namespace ash {
// The BluetoothNotificationController receives incoming pairing requests from
// the BluetoothAdapter, and notifications of changes to the adapter state and
// set of paired devices. It presents incoming pairing requests in the form of
// rich notifications that the user can interact with to approve the request.
class ASH_EXPORT BluetoothNotificationController
: public device::BluetoothAdapter::Observer,
public device::BluetoothDevice::PairingDelegate {
~BluetoothNotificationController() override;
// device::BluetoothAdapter::Observer override.
void AdapterDiscoverableChanged(device::BluetoothAdapter* adapter,
bool discoverable) override;
void DeviceAdded(device::BluetoothAdapter* adapter,
device::BluetoothDevice* device) override;
void DeviceChanged(device::BluetoothAdapter* adapter,
device::BluetoothDevice* device) override;
void DeviceRemoved(device::BluetoothAdapter* adapter,
device::BluetoothDevice* device) override;
// device::BluetoothDevice::PairingDelegate override.
void RequestPinCode(device::BluetoothDevice* device) override;
void RequestPasskey(device::BluetoothDevice* device) override;
void DisplayPinCode(device::BluetoothDevice* device,
const std::string& pincode) override;
void DisplayPasskey(device::BluetoothDevice* device,
uint32_t passkey) override;
void KeysEntered(device::BluetoothDevice* device, uint32_t entered) override;
void ConfirmPasskey(device::BluetoothDevice* device,
uint32_t passkey) override;
void AuthorizePairing(device::BluetoothDevice* device) override;
// Internal method called by BluetoothAdapterFactory to provide the adapter
// object.
void OnGetAdapter(scoped_refptr<device::BluetoothAdapter> adapter);
// Presents a notification to the user when the adapter becomes discoverable
// to other nearby devices.
void NotifyAdapterDiscoverable();
// Presents a notification to the user that a device |device| is making a
// pairing request. The exact message to display is given in |message| and
// should include all relevant instructions, if |with_buttons| is true then
// the notification will have Accept and Reject buttons, if false only the
// usual cancel/dismiss button will be present on the notification.
void NotifyPairing(device::BluetoothDevice* device,
const base::string16& message,
bool with_buttons);
// Clears any shown pairing notification now that the device has been paired.
void NotifyPairedDevice(device::BluetoothDevice* device);
// Reference to the underlying BluetoothAdapter object, holding this reference
// ensures we stay around as the pairing delegate for that adapter.
scoped_refptr<device::BluetoothAdapter> adapter_;
// Set of currently paired devices, stored by Bluetooth address, used to
// filter out property changes for devices that were previously paired.
std::set<std::string> paired_devices_;
// 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<BluetoothNotificationController> weak_ptr_factory_;
} // namespace ash