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/* 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 obtaone at http://mozilla.org/MPL/2.0/. */

dictionary DOMFileMetadataParameters
{
  boolean size = true;
  boolean lastModified = true;
};

interface LockedFile : EventTarget
{
  readonly attribute FileHandle? fileHandle;
  readonly attribute FileMode mode;
  readonly attribute boolean active;
  attribute unsigned long long? location;

  [Throws]
  FileRequest? getMetadata(optional DOMFileMetadataParameters parameters);
  [Throws]
  FileRequest? readAsArrayBuffer(unsigned long long size);
  [Throws]
  FileRequest? readAsText(unsigned long long size,
                         optional DOMString? encoding = null);

  [Throws]
  FileRequest? write(ArrayBuffer value);
  [Throws]
  FileRequest? write(Blob value);
  [Throws]
  FileRequest? write(DOMString value);
  [Throws]
  FileRequest? append(ArrayBuffer value);
  [Throws]
  FileRequest? append(Blob value);
  [Throws]
  FileRequest? append(DOMString value);
  [Throws]
  FileRequest? truncate(optional unsigned long long size);
  [Throws]
  FileRequest? flush();
  [Throws]
  void abort();

  attribute EventHandler oncomplete;
  attribute EventHandler onabort;
  attribute EventHandler onerror;
};