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nearby/fastpair/internal/fast_pair_seeker_impl.h
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2023-06-16 16:14:14 -07:00

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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef THIRD_PARTY_NEARBY_FASTPAIR_INTERNAL_DEFAULT_FAST_PAIR_SEEKER_H_
#define THIRD_PARTY_NEARBY_FASTPAIR_INTERNAL_DEFAULT_FAST_PAIR_SEEKER_H_
#include <memory>
#include <optional>
#include <utility>
#include "fastpair/fast_pair_events.h"
#include "fastpair/fast_pair_seeker.h"
#include "fastpair/internal/mediums/mediums.h"
#include "fastpair/pairing/pairer_broker_impl.h"
#include "fastpair/repository/fast_pair_device_repository.h"
#include "fastpair/scanning/scanner_broker_impl.h"
#include "internal/platform/single_thread_executor.h"
namespace nearby {
namespace fastpair {
// Fast Pair Seeker Extended interface.
// The methods in this interface are available only to FP internal plugins.
class FastPairSeekerExt : public FastPairSeeker {
public:
virtual absl::Status StartFastPairScan() = 0;
virtual absl::Status StopFastPairScan() = 0;
};
class FastPairSeekerImpl : public FastPairSeekerExt,
ScannerBrokerImpl::Observer,
PairerBroker::Observer {
public:
struct ServiceCallbacks {
absl::AnyInvocable<void(const FastPairDevice&, InitialDiscoveryEvent)>
on_initial_discovery;
absl::AnyInvocable<void(const FastPairDevice&, SubsequentDiscoveryEvent)>
on_subsequent_discovery;
absl::AnyInvocable<void(const FastPairDevice&, PairEvent)> on_pair_event;
absl::AnyInvocable<void(const FastPairDevice&, ScreenEvent)>
on_screen_event;
absl::AnyInvocable<void(const FastPairDevice&, BatteryEvent)>
on_battery_event;
absl::AnyInvocable<void(const FastPairDevice&, RingEvent)> on_ring_event;
};
FastPairSeekerImpl(ServiceCallbacks callbacks, SingleThreadExecutor* executor,
FastPairDeviceRepository* devices);
~FastPairSeekerImpl() override;
// From FastPairSeeker.
absl::Status StartInitialPairing(const FastPairDevice& device,
const InitialPairingParam& params,
PairingCallback callback) override;
absl::Status StartSubsequentPairing(const FastPairDevice& device,
const SubsequentPairingParam& params,
PairingCallback callback) override;
absl::Status StartRetroactivePairing(const FastPairDevice& device,
const RetroactivePairingParam& param,
PairingCallback callback) override;
// From FastPairSeekerExt.
absl::Status StartFastPairScan() override;
absl::Status StopFastPairScan() override;
// Handle the state changes of screen lock.
void SetIsScreenLocked(bool is_locked);
// Internal methods, not exported to plugins.
private:
// From ScannerBrokerImpl::Observer.
void OnDeviceFound(FastPairDevice& device) override;
void OnDeviceLost(FastPairDevice& device) override;
// From PairerBroker:Observer
void OnDevicePaired(FastPairDevice& device) override;
void OnAccountKeyWrite(FastPairDevice& device,
std::optional<PairFailure> error) override;
void OnPairingComplete(FastPairDevice& device) override;
void OnPairFailure(FastPairDevice& device, PairFailure failure) override;
void InvalidateScanningState() ABSL_EXCLUSIVE_LOCKS_REQUIRED(*executor_);
bool IsDeviceUnderPairing(const FastPairDevice& device);
void FinishPairing(absl::Status result);
ServiceCallbacks callbacks_;
SingleThreadExecutor* executor_;
FastPairDeviceRepository* devices_;
Mediums mediums_;
std::unique_ptr<ScannerBrokerImpl> scanner_;
std::unique_ptr<ScannerBrokerImpl::ScanningSession> scanning_session_;
std::unique_ptr<PairerBrokerImpl> pairer_broker_;
std::unique_ptr<PairingCallback> pairing_callback_;
FastPairDevice* device_under_pairing_ = nullptr;
FastPairDevice* test_device_ = nullptr;
bool is_screen_locked_ = false;
};
} // namespace fastpair
} // namespace nearby
#endif // THIRD_PARTY_NEARBY_FASTPAIR_INTERNAL_DEFAULT_FAST_PAIR_SEEKER_H_