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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 /** | 5 /** |
6 * Defines functions for translating between JavaScript strings and UTF8 strings | 6 * Defines functions for translating between JavaScript strings and UTF8 strings |
7 * stored in ArrayBuffers. There is much room for optimization in this code if | 7 * stored in ArrayBuffers. There is much room for optimization in this code if |
8 * it proves necessary. | 8 * it proves necessary. |
9 */ | 9 */ |
10 define("mojo/public/js/unicode", function() { | 10 (function() { |
| 11 var internal = mojoBindings.internal; |
| 12 |
11 /** | 13 /** |
12 * Decodes the UTF8 string from the given buffer. | 14 * Decodes the UTF8 string from the given buffer. |
13 * @param {ArrayBufferView} buffer The buffer containing UTF8 string data. | 15 * @param {ArrayBufferView} buffer The buffer containing UTF8 string data. |
14 * @return {string} The corresponding JavaScript string. | 16 * @return {string} The corresponding JavaScript string. |
15 */ | 17 */ |
16 function decodeUtf8String(buffer) { | 18 function decodeUtf8String(buffer) { |
17 return decodeURIComponent(escape(String.fromCharCode.apply(null, buffer))); | 19 return decodeURIComponent(escape(String.fromCharCode.apply(null, buffer))); |
18 } | 20 } |
19 | 21 |
20 /** | 22 /** |
(...skipping 15 matching lines...) Expand all Loading... |
36 | 38 |
37 /** | 39 /** |
38 * Returns the number of bytes that a UTF8 encoding of the JavaScript string | 40 * Returns the number of bytes that a UTF8 encoding of the JavaScript string |
39 * |str| would occupy. | 41 * |str| would occupy. |
40 */ | 42 */ |
41 function utf8Length(str) { | 43 function utf8Length(str) { |
42 var utf8String = unescape(encodeURIComponent(str)); | 44 var utf8String = unescape(encodeURIComponent(str)); |
43 return utf8String.length; | 45 return utf8String.length; |
44 } | 46 } |
45 | 47 |
46 var exports = {}; | 48 internal.decodeUtf8String = decodeUtf8String; |
47 exports.decodeUtf8String = decodeUtf8String; | 49 internal.encodeUtf8String = encodeUtf8String; |
48 exports.encodeUtf8String = encodeUtf8String; | 50 internal.utf8Length = utf8Length; |
49 exports.utf8Length = utf8Length; | 51 })(); |
50 return exports; | |
51 }); | |
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