device/nfc/nfc_peer_chromeos.h

   1 // Copyright 2013 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_PEER_CHROMEOS_H_
   6 #define DEVICE_NFC_NFC_PEER_CHROMEOS_H_
   7
   8 #include <map>
   9
  10 #include "base/memory/weak_ptr.h"
  11 #include "base/observer_list.h"
  12 #include "chromeos/dbus/nfc_record_client.h"
  13 #include "dbus/object_path.h"
  14 #include "device/nfc/nfc_ndef_record.h"
  15 #include "device/nfc/nfc_peer.h"
  16
  17 namespace chromeos {
  18
  19 // The NfcPeerChromeOS class implements NfcPeer for the Chrome OS platform.
  20 class NfcPeerChromeOS : public device::NfcPeer,
  21                         public NfcRecordClient::Observer {
  22  public:
  23   // NfcPeer overrides.
  24   void AddObserver(device::NfcPeer::Observer* observer) override;
  25   void RemoveObserver(device::NfcPeer::Observer* observer) override;
  26   std::string GetIdentifier() const override;
  27   const device::NfcNdefMessage& GetNdefMessage() const override;
  28   void PushNdef(const device::NfcNdefMessage& message,
  29                 const base::Closure& callback,
  30                 const ErrorCallback& error_callback) override;
  31   void StartHandover(HandoverType handover_type,
  32                      const base::Closure& callback,
  33                      const ErrorCallback& error_callback) override;
  34
  35  private:
  36   friend class NfcAdapterChromeOS;
  37
  38   // Mapping from D-Bus object paths to NfcNdefRecord objects.
  39   typedef std::map<dbus::ObjectPath, device::NfcNdefRecord*> NdefRecordMap;
  40
  41   explicit NfcPeerChromeOS(const dbus::ObjectPath& object_path);
  42   ~NfcPeerChromeOS() override;
  43
  44   // NfcRecordClient::Observer overrides.
  45   void RecordAdded(const dbus::ObjectPath& object_path) override;
  46   void RecordRemoved(const dbus::ObjectPath& object_path) override;
  47   void RecordPropertiesReceived(const dbus::ObjectPath& object_path) override;
  48
  49   // Called by dbus:: on completion of the D-Bus method call to push an NDEF.
  50   void OnPushNdef(const base::Closure& callback);
  51   void OnPushNdefError(const ErrorCallback& error_callback,
  52                        const std::string& error_name,
  53                        const std::string& error_message);
  54
  55   // Creates a record object for the record with object path |object_path| and
  56   // notifies the observers, if a record object did not already exist for it.
  57   void AddRecord(const dbus::ObjectPath& object_path);
  58
  59   // Object path of the peer that we are currently tracking.
  60   dbus::ObjectPath object_path_;
  61
  62   // A map containing the NDEF records that were received from the peer.
  63   NdefRecordMap records_;
  64
  65   // Message instance that contains pointers to all created records.
  66   device::NfcNdefMessage message_;
  67
  68   // List of observers interested in event notifications from us.
  69   base::ObserverList<device::NfcPeer::Observer> observers_;
  70
  71   // Note: This should remain the last member so it'll be destroyed and
  72   // invalidate its weak pointers before any other members are destroyed.
  73   base::WeakPtrFactory<NfcPeerChromeOS> weak_ptr_factory_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(NfcPeerChromeOS);
  76 };
  77
  78 }  // namespace chromeos
  79
  80 #endif  // DEVICE_NFC_NFC_PEER_CHROMEOS_H_