| // Copyright 2018 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 CHROMECAST_DEVICE_BLUETOOTH_LE_LE_SCAN_MANAGER_H_ |
| #define CHROMECAST_DEVICE_BLUETOOTH_LE_LE_SCAN_MANAGER_H_ |
| |
| #include <list> |
| #include <map> |
| #include <vector> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "chromecast/device/bluetooth/le/le_scan_result.h" |
| #include "chromecast/device/bluetooth/le/scan_filter.h" |
| |
| namespace chromecast { |
| namespace bluetooth { |
| |
| class LeScanManager { |
| public: |
| class Observer { |
| public: |
| // Called when the scan has been enabled or disabled. |
| virtual void OnScanEnableChanged(bool enabled) {} |
| |
| // Called when a new scan result is ready. |
| virtual void OnNewScanResult(LeScanResult result) {} |
| |
| virtual ~Observer() = default; |
| }; |
| |
| virtual void AddObserver(Observer* o) = 0; |
| virtual void RemoveObserver(Observer* o) = 0; |
| |
| class ScanHandle { |
| public: |
| virtual ~ScanHandle() = default; |
| |
| protected: |
| ScanHandle() = default; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(ScanHandle); |
| }; |
| |
| // Request a handle to enable BLE scanning. Can be called on any thread. |cb| |
| // returns a handle. As long is there is at least one handle in existence, BLE |
| // scanning will be enabled. Returns nullptr if failed to enable scanning. |
| using RequestScanCallback = |
| base::OnceCallback<void(std::unique_ptr<ScanHandle> handle)>; |
| virtual void RequestScan(RequestScanCallback cb) = 0; |
| |
| // Asynchronously get the most recent scan results. Can be called on any |
| // thread. |cb| is called on the calling thread with the results. If |
| // |scan_filter| is passed, only scan results matching the given |scan_filter| |
| // will be returned. |
| using GetScanResultsCallback = |
| base::OnceCallback<void(std::vector<LeScanResult>)>; |
| virtual void GetScanResults( |
| GetScanResultsCallback cb, |
| base::Optional<ScanFilter> scan_filter = base::nullopt) = 0; |
| |
| virtual void ClearScanResults() = 0; |
| |
| protected: |
| LeScanManager() = default; |
| virtual ~LeScanManager() = default; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(LeScanManager); |
| }; |
| |
| } // namespace bluetooth |
| } // namespace chromecast |
| |
| #endif // CHROMECAST_DEVICE_BLUETOOTH_LE_LE_SCAN_MANAGER_H_ |