Initial public release of nearby library

Signed-off-by: Alexey Polyudov <apolyudov@google.com>
Change-Id: I85d490e448375aa4eb7b09680757c02fff1420b4

cpp/platform/api/bluetooth_adapter.h

@@ -0,0 +1,72 @@
+// Copyright 2020 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 PLATFORM_API_BLUETOOTH_ADAPTER_H_
+#define PLATFORM_API_BLUETOOTH_ADAPTER_H_
+
+#include "platform/port/string.h"
+#include "platform/ptr.h"
+
+namespace location {
+namespace nearby {
+
+// https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html
+class BluetoothAdapter {
+ public:
+  virtual ~BluetoothAdapter() {}
+
+  // Eligible statuses of the BluetoothAdapter.
+  struct Status {
+    enum Value {
+      DISABLED,
+      ENABLED,
+    };
+  };
+
+  // Synchronously sets the status of the BluetoothAdapter to 'status', and
+  // returns true if the operation was a success.
+  virtual bool setStatus(Status::Value status) = 0;
+  // Returns true if the BluetoothAdapter's current status is
+  // Status::Value::ENABLED.
+  virtual bool isEnabled() = 0;
+
+  // Scan modes of a BluetoothAdapter, as described at
+  // https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#getScanMode().
+  struct ScanMode {
+    enum Value {
+      UNKNOWN,
+      CONNECTABLE_DISCOVERABLE,
+    };
+  };
+
+  // https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#getScanMode()
+  //
+  // Returns ScanMode::UNKNOWN on error.
+  virtual ScanMode::Value getScanMode() = 0;
+  // Synchronously sets the scan mode of the adapter, and returns true if the
+  // operation was a success.
+  virtual bool setScanMode(ScanMode::Value scan_mode) = 0;
+
+  // https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#getName()
+  //
+  // Returns a null Ptr<string> on error.
+  virtual Ptr<std::string> getName() = 0;
+  // https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#setName(java.lang.String)
+  virtual bool setName(const std::string& name) = 0;
+};
+
+}  // namespace nearby
+}  // namespace location
+
+#endif  // PLATFORM_API_BLUETOOTH_ADAPTER_H_