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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 DEVICE_NFC_NFC_TAG_CHROMEOS_H_
#define DEVICE_NFC_NFC_TAG_CHROMEOS_H_
#include <string>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/observer_list.h"
#include "chromeos/dbus/nfc_tag_client.h"
#include "dbus/object_path.h"
#include "device/nfc/nfc_tag.h"
namespace chromeos {
class NfcNdefTagTechnologyChromeOS;
// The NfcTagChromeOS class implements device::NfcTag for the Chrome OS
// platform.
class NfcTagChromeOS : public device::NfcTag,
public NfcTagClient::Observer {
public:
// device::NfcTag overrides.
void AddObserver(device::NfcTag::Observer* observer) override;
void RemoveObserver(device::NfcTag::Observer* observer) override;
std::string GetIdentifier() const override;
TagType GetType() const override;
bool IsReadOnly() const override;
device::NfcTag::Protocol GetSupportedProtocol() const override;
device::NfcTagTechnology::TechnologyTypeMask GetSupportedTechnologies()
const override;
bool IsReady() const override;
device::NfcNdefTagTechnology* GetNdefTagTechnology() override;
// NfcTagClient::Observer overrides.
void TagPropertyChanged(const dbus::ObjectPath& object_path,
const std::string& property_name) override;
void TagPropertiesReceived(const dbus::ObjectPath& object_path) override;
// Object path representing the remote tag object.
const dbus::ObjectPath& object_path() const { return object_path_; }
private:
friend class NfcAdapterChromeOS;
explicit NfcTagChromeOS(const dbus::ObjectPath& object_path);
~NfcTagChromeOS() override;
// Object path of the tag that we are currently tracking.
dbus::ObjectPath object_path_;
// Stores whether or not the initial set of properties have been received.
bool is_ready_;
// The NfcNdefTagTechnology instance that allows users to perform NDEF
// read and write on this tag.
scoped_ptr<NfcNdefTagTechnologyChromeOS> ndef_technology_;
// List of observers interested in event notifications from us.
base::ObserverList<device::NfcTag::Observer> observers_;
DISALLOW_COPY_AND_ASSIGN(NfcTagChromeOS);
};
} // namespace chromeos
#endif // DEVICE_NFC_NFC_TAG_CHROMEOS_H_
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