| // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| class $FACTORYPROVIDER { |
| static Blob createBlob([List blobParts = null, String type, String endings]) { |
| // TODO: validate that blobParts is a JS Array and convert if not. |
| // TODO: any coercions on the elements of blobParts, e.g. coerce a typed |
| // array to ArrayBuffer if it is a total view. |
| if (type == null && endings == null) { |
| return _create_1(blobParts); |
| } |
| var bag = _create_bag(); |
| if (type != null) _bag_set(bag, 'type', type); |
| if (endings != null) _bag_set(bag, 'endings', endings); |
| return _create_2(blobParts, bag); |
| } |
| |
| static _create_1(parts) => JS('Blob', 'new Blob(#)', parts); |
| static _create_2(parts, bag) => JS('Blob', 'new Blob(#, #)', parts, bag); |
| |
| static _create_bag() => JS('var', '{}'); |
| static _bag_set(bag, key, value) { JS('void', '#[#] = #', bag, key, value); } |
| } |
