1 // Copyright 2014 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 DEVICE_NFC_NFC_TAG_CHROMEOS_H_ 6 #define DEVICE_NFC_NFC_TAG_CHROMEOS_H_ 7 8 #include <string> 9 10 #include "base/memory/scoped_ptr.h" 11 #include "base/observer_list.h" 12 #include "chromeos/dbus/nfc_tag_client.h" 13 #include "dbus/object_path.h" 14 #include "device/nfc/nfc_tag.h" 15 16 namespace chromeos { 17 18 class NfcNdefTagTechnologyChromeOS; 19 20 // The NfcTagChromeOS class implements device::NfcTag for the Chrome OS 21 // platform. 22 class NfcTagChromeOS : public device::NfcTag, 23 public NfcTagClient::Observer { 24 public: 25 // device::NfcTag overrides. 26 virtual void AddObserver(device::NfcTag::Observer* observer) OVERRIDE; 27 virtual void RemoveObserver(device::NfcTag::Observer* observer) OVERRIDE; 28 virtual std::string GetIdentifier() const OVERRIDE; 29 virtual TagType GetType() const OVERRIDE; 30 virtual bool IsReadOnly() const OVERRIDE; 31 virtual device::NfcTag::Protocol GetSupportedProtocol() const OVERRIDE; 32 virtual device::NfcTagTechnology::TechnologyTypeMask 33 GetSupportedTechnologies() const OVERRIDE; 34 virtual bool IsReady() const OVERRIDE; 35 virtual device::NfcNdefTagTechnology* GetNdefTagTechnology() OVERRIDE; 36 37 // NfcTagClient::Observer overrides. 38 virtual void TagPropertyChanged(const dbus::ObjectPath& object_path, 39 const std::string& property_name) OVERRIDE; 40 virtual void TagPropertiesReceived( 41 const dbus::ObjectPath& object_path) OVERRIDE; 42 43 // Object path representing the remote tag object. 44 const dbus::ObjectPath& object_path() const { return object_path_; } 45 46 private: 47 friend class NfcAdapterChromeOS; 48 49 explicit NfcTagChromeOS(const dbus::ObjectPath& object_path); 50 virtual ~NfcTagChromeOS(); 51 52 // Object path of the tag that we are currently tracking. 53 dbus::ObjectPath object_path_; 54 55 // Stores whether or not the initial set of properties have been received. 56 bool is_ready_; 57 58 // The NfcNdefTagTechnology instance that allows users to perform NDEF 59 // read and write on this tag. 60 scoped_ptr<NfcNdefTagTechnologyChromeOS> ndef_technology_; 61 62 // List of observers interested in event notifications from us. 63 ObserverList<device::NfcTag::Observer> observers_; 64 65 DISALLOW_COPY_AND_ASSIGN(NfcTagChromeOS); 66 }; 67 68 } // namespace chromeos 69 70 #endif // DEVICE_NFC_NFC_TAG_CHROMEOS_H_ 71
