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// Copyright 2014 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_GATT_SERVICE_CLIENT_H_
#define CHROMEOS_DBUS_BLUETOOTH_GATT_SERVICE_CLIENT_H_
#include <string>
#include <vector>
#include "chromeos/chromeos_export.h"
#include "chromeos/dbus/dbus_client.h"
#include "dbus/object_path.h"
#include "dbus/property.h"
namespace chromeos {
// BluetoothGattServiceClient is used to communicate with remote GATT service
// objects exposed by the Bluetooth daemon.
class CHROMEOS_EXPORT BluetoothGattServiceClient : public DBusClient {
public:
// Structure of properties associated with GATT services.
struct Properties : public dbus::PropertySet {
// The 128-bit service UUID. [read-only]
dbus::Property<std::string> uuid;
// Object path of the Bluetooth device that the GATT service belongs to.
dbus::Property<dbus::ObjectPath> device;
// Whether or not this service is a primary service.
dbus::Property<bool> primary;
// Array of object paths representing the characteristics of this service.
// [read-only]
dbus::Property<std::vector<dbus::ObjectPath>> characteristics;
// Array of object paths representing the included services of this service.
// [read-only]
dbus::Property<std::vector<dbus::ObjectPath>> includes;
Properties(dbus::ObjectProxy* object_proxy,
const std::string& interface_name,
const PropertyChangedCallback& callback);
~Properties() override;
};
// Interface for observing changes from a remote GATT service.
class Observer {
public:
virtual ~Observer() {}
// Called when the GATT service with object path |object_path| is added to
// the system.
virtual void GattServiceAdded(const dbus::ObjectPath& object_path) {}
// Called when the GATT service with object path |object_path| is removed
// from the system.
virtual void GattServiceRemoved(const dbus::ObjectPath& object_path) {}
// Called when the GATT service with object path |object_path| has a change
// in the value of the property named |property_name|.
virtual void GattServicePropertyChanged(const dbus::ObjectPath& object_path,
const std::string& property_name) {}
};
~BluetoothGattServiceClient() override;
// Adds and removes observers for events on all remote GATT services. Check
// the |object_path| parameter of observer methods to determine which GATT
// service is issuing the event.
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
// Returns the list of GATT service object paths known to the system.
virtual std::vector<dbus::ObjectPath> GetServices() = 0;
// Obtain the properties for the GATT service with object path |object_path|.
// Values should be copied if needed.
virtual Properties* GetProperties(const dbus::ObjectPath& object_path) = 0;
// Creates the instance.
static BluetoothGattServiceClient* Create();
protected:
BluetoothGattServiceClient();
private:
DISALLOW_COPY_AND_ASSIGN(BluetoothGattServiceClient);
};
} // namespace chromeos
#endif // CHROMEOS_DBUS_BLUETOOTH_GATT_SERVICE_CLIENT_H_
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