Implement FileReader.{readAsText,readAsDataUrl}. Fixes #6172

components/script/dom/webidls/FileReader.webidl

@@ -0,0 +1,43 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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/.
+ */
+
+ // http://dev.w3.org/2006/webapi/FileAPI/#APIASynch
+
+//typedef (DOMString or ArrayBuffer) FileReaderResult;
+[Constructor, Exposed=Window/*,Worker*/]
+interface FileReader: EventTarget {
+
+  // async read methods
+  //[Throws]
+  //void readAsArrayBuffer(Blob blob);
+  [Throws]
+  void readAsText(Blob blob, optional DOMString label);
+  [Throws]
+  void readAsDataURL(Blob blob);
+
+  void 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 DOMString? 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;
+
+};