components/script/dom/webidls/FileReader.webidl


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41

/* 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 https://mozilla.org/MPL/2.0/. */

 // http://dev.w3.org/2006/webapi/FileAPI/#APIASynch

typedef (DOMString or object) FileReaderResult;
[Exposed=(Window,Worker)]
interface FileReader: EventTarget {
  [Throws] constructor();

  // async read methods
  [Throws]
  undefined readAsArrayBuffer(Blob blob);
  [Throws]
  undefined readAsText(Blob blob, optional DOMString label);
  [Throws]
  undefined readAsDataURL(Blob blob);

  undefined abort();

  // states
  const unsigned short EMPTY = 0;
  const unsigned short LOADING = 1;
  const unsigned short DONE = 2;
  readonly attribute unsigned short readyState;

  // File or Blob data
  readonly attribute FileReaderResult? result;

  readonly attribute DOMException? error;

  // event handler attributes
  attribute EventHandler onloadstart;
  attribute EventHandler onprogress;
  attribute EventHandler onload;
  attribute EventHandler onabort;
  attribute EventHandler onerror;
  attribute EventHandler onloadend;

};