Add DBus bindings for BLE Advertisement.

chromeos/dbus/bluetooth_le_advertising_manager_client.h

+// Copyright 2015 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 CHROMEOS_DBUS_BLUETOOTH_LE_ADVERTISING_MANAGER_CLIENT_H_
+#define CHROMEOS_DBUS_BLUETOOTH_LE_ADVERTISING_MANAGER_CLIENT_H_
+
+#include <string>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "chromeos/chromeos_export.h"
+#include "chromeos/dbus/dbus_client.h"
+#include "dbus/object_path.h"
+
+namespace chromeos {
+
+// BluetoothAdvertisingManagerClient is used to communicate with the advertising
+// manager object of the BlueZ daemon.
+class CHROMEOS_EXPORT BluetoothLEAdvertisingManagerClient : public DBusClient {
+ public:
+  // Interface for observing changes to advertising managers.
+  class Observer {
+   public:
+    virtual ~Observer() {}
+
+    // Called when an advertising manager with object path |object_path| is
+    // added to the system.
+    virtual void AdvertisingManagerAdded(const dbus::ObjectPath& object_path) {}
+
+    // Called when an advertising manager with object path |object_path| is
+    // removed from the system.
+    virtual void AdvertisingManagerRemoved(
+        const dbus::ObjectPath& object_path) {}
+  };
+
+  ~BluetoothLEAdvertisingManagerClient() override;
+
+  // Adds and removes observers for events which change the advertising
+  // managers on the system.
+  virtual void AddObserver(Observer* observer) = 0;
+  virtual void RemoveObserver(Observer* observer) = 0;
+
+  // The ErrorCallback is used by advertising manager methods to indicate
+  // failure. It receives two arguments: the name of the error in |error_name|
+  // and an optional message in |error_message|.
+  using ErrorCallback = base::Callback<void(const std::string& error_name,
+                                            const std::string& error_message)>;
+
+  // Registers an advertisement with the DBus object path
+  // |advertisement_object_path| with BlueZ's advertising manager.
+  virtual void RegisterAdvertisement(
+      const dbus::ObjectPath& manager_object_path,
+      const dbus::ObjectPath& advertisement_object_path,
+      const base::Closure& callback,
+      const ErrorCallback& error_callback) = 0;
+
+  // Unregisters an advertisement with the DBus object path
+  // |advertisement_object_path| with BlueZ's advertising manager.
+  virtual void UnregisterAdvertisement(
+      const dbus::ObjectPath& manager_object_path,
+      const dbus::ObjectPath& advertisement_object_path,
+      const base::Closure& callback,
+      const ErrorCallback& error_callback) = 0;
+
+  // Creates the instance.
+  static BluetoothLEAdvertisingManagerClient* Create();
+
+  // Constants used to indicate exceptional error conditions.
+  static const char kNoResponseError[];
+
+ protected:
+  BluetoothLEAdvertisingManagerClient();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BluetoothLEAdvertisingManagerClient);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROMEOS_DBUS_BLUETOOTH_LE_ADVERTISING_MANAGER_CLIENT_H_