/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"
#include "nsIDOMDOMRequest.idl"

interface nsIVariant;

[scriptable, uuid(9b43bdda-52f4-4712-b28c-ad7cba736e14)]
interface nsINfcTagEvent : nsISupports
{
  readonly attribute nsIVariant techList;

  // one of NFCTagType defined in MozNFCTag.webidl.
  readonly attribute DOMString tagType;

  readonly attribute long maxNDEFSize;

  readonly attribute boolean isReadOnly;

  readonly attribute boolean isFormatable;
};

[scriptable, uuid(42c7a85f-59ae-4bde-b961-e1f1436476c3)]
interface nsINfcEventListener : nsISupports
{
  /**
   * Callback function used to notify tagfound.
   *
   * @param sessionToken
   *        SessionToken received from parent process
   * @param event
   *        nsINfcTagFoundEvent received from parent process.
   * @param ndefRecords
   *        NDEF records pre-read during tag-discovered.
   */
  void notifyTagFound(in DOMString sessionToken,
                      in nsINfcTagEvent event,
                      in nsIVariant ndefRecords);

  /**
   * Callback function used to notify taglost.
   *
   * @param sessionToken
   *        SessionToken received from parent process
   */
  void notifyTagLost(in DOMString sessionToken);

  /**
   * Callback function used to notify peerfound/peerready.
   * @param sessionToken
   *        SessionToken received from parent process
   * @param isPeerReady
   *        Set to true to dispatch peerready instead of peerfound
   */
  void notifyPeerFound(in DOMString sessionToken, [optional] in boolean isPeerReady);

  /**
   * Callback function used to notify peerlost.
   *
   * @param sessionToken
   *        SessionToken received from parent process
   */
  void notifyPeerLost(in DOMString sessionToken);
};

[scriptable, uuid(486dff99-6755-428b-834d-3647ce276b54)]
interface nsINfcContentHelper : nsISupports
{
  void init(in nsIDOMWindow window);

  boolean checkSessionToken(in DOMString sessionToken, in boolean isP2P);

  nsIDOMDOMRequest readNDEF(in DOMString sessionToken);
  nsIDOMDOMRequest writeNDEF(in nsIVariant records, in DOMString sessionToken);
  nsIDOMDOMRequest makeReadOnly(in DOMString sessionToken);

  nsIDOMDOMRequest connect(in unsigned long techType, in DOMString sessionToken);
  nsIDOMDOMRequest close(in DOMString sessionToken);

  /**
   * Initiate send file operation.
   *
   * @param blob
   *        Raw data of the file to be sent. This object represents a file-like
   *        (nsIDOMFile) object of immutable, raw data. The blob data needs
   *        to be 'object wrapped' before calling this interface.
   *
   * @param sessionToken
   *        Current token
   *
   * Returns DOMRequest, if initiation of send file operation is successful
   * then 'onsuccess' is called else 'onerror'
   */
  nsIDOMDOMRequest sendFile(in jsval blob,
                            in DOMString sessionToken);

  /**
   * Add the event listener.
   *
   * @param listener
   *        An instance of the nsINfcEventListener.
   */
  void addEventListener(in nsINfcEventListener listener);

  /**
   * Register the given application id with parent process
   *
   * @param appId
   *        Application ID to be registered
   */
  void registerTargetForPeerReady(in unsigned long appId);

  /**
   * Unregister the given application id with parent process
   *
   * @param appId
   *        Application ID to be registered
   */
  void unregisterTargetForPeerReady(in unsigned long appId);

  /**
   * Checks if the given application's id is a registered peer target (with the parent process)
   *
   * @param appId
   *        Application ID to be updated with parent process
   *
   * Returns DOMRequest, if appId is registered then 'onsuccess' is called else 'onerror'
   */
  nsIDOMDOMRequest checkP2PRegistration(in unsigned long appId);

  /**
   * Notify the parent process that user has accepted to share nfc message on P2P UI
   *
   * @param appId
   *        Application ID that is capable of handling NFC_EVENT_PEER_READY event
   */
  void notifyUserAcceptedP2P(in unsigned long appId);

  /**
   * Notify the status of sendFile operation to parent process
   *
   * @param status
   *        Status of sendFile operation
   *
   * @param requestId
   *        Request ID of SendFile DOM Request
   */
  void notifySendFileStatus(in octet status,
                            in DOMString requestId);

  /**
   * Change RF state.
   *
   * @param rfState. Possible values are 'idle', 'listen' and 'discovery'.
   */
  nsIDOMDOMRequest changeRFState(in DOMString rfState);
};