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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef CONTENT_COMMON_BLUETOOTH_WEB_BLUETOOTH_DEVICE_ID_H_ |
| 6 #define CONTENT_COMMON_BLUETOOTH_WEB_BLUETOOTH_DEVICE_ID_H_ |
| 7 |
| 8 #include <string> |
| 9 |
| 10 #include "content/common/content_export.h" |
| 11 |
| 12 namespace content { |
| 13 |
| 14 // Used to uniquely identify a Bluetooth Device for an Origin. |
| 15 // A WebBluetoothDeviceId is generated by base64-encoding a 128bit |
| 16 // string. |
| 17 class CONTENT_EXPORT WebBluetoothDeviceId { |
| 18 public: |
| 19 // Default constructor that creates an invalid id. We implement it so that |
| 20 // instances of this class in a container, e.g. std::unordered_map, can be |
| 21 // accessed through the [] operator. Trying to call any function of the |
| 22 // resulting object will DCHECK-fail. |
| 23 WebBluetoothDeviceId(); |
| 24 |
| 25 // DCHECKS that |device_id| is valid. |
| 26 explicit WebBluetoothDeviceId(std::string device_id); |
| 27 ~WebBluetoothDeviceId(); |
| 28 |
| 29 // Returns the string that represents this WebBluetoothDeviceId. |
| 30 const std::string& str() const; |
| 31 |
| 32 // The returned WebBluetoothDeviceId is generated by creating a random 128bit |
| 33 // string and base64-encoding it. |
| 34 static WebBluetoothDeviceId Create(); |
| 35 |
| 36 // Returns true if base64-decoding |device_id| results in a 128bit string. |
| 37 static bool IsValid(const std::string& device_id); |
| 38 |
| 39 bool operator==(const WebBluetoothDeviceId& device_id) const; |
| 40 bool operator!=(const WebBluetoothDeviceId& device_id) const; |
| 41 |
| 42 private: |
| 43 std::string device_id_; |
| 44 }; |
| 45 |
| 46 // This is required by gtest to print a readable output on test failures. |
| 47 CONTENT_EXPORT std::ostream& operator<<(std::ostream& out, |
| 48 const WebBluetoothDeviceId& device_id); |
| 49 |
| 50 struct WebBluetoothDeviceIdHash { |
| 51 size_t operator()(const WebBluetoothDeviceId& device_id) const { |
| 52 return std::hash<std::string>()(device_id.str()); |
| 53 } |
| 54 }; |
| 55 |
| 56 } // namespace content |
| 57 |
| 58 #endif // CONTENT_COMMON_BLUETOOTH_WEB_BLUETOOTH_DEVICE_ID_H_ |
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