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1 /* Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 /* Copyright (c) 2011 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 /** | 6 /** |
7 * This file defines the PPP_Messaging interface containing pointers to | 7 * This file defines the PPP_Messaging interface containing pointers to |
8 * functions that you must implement to handle postMessage messages | 8 * functions that you must implement to handle postMessage messages |
9 * on the associated DOM element. | 9 * on the associated DOM element. |
10 * | 10 * |
11 */ | 11 */ |
12 | 12 |
13 label Chrome { | 13 label Chrome { |
14 M14 = 1.0 | 14 M14 = 1.0 |
15 }; | 15 }; |
16 | 16 |
17 /** | 17 /** |
18 * The <code>PPP_Messaging</code> interface contains pointers to functions | 18 * The <code>PPP_Messaging</code> interface contains pointers to functions |
19 * that you must implement to handle postMessage events on the associated | 19 * that you must implement to handle postMessage events on the associated |
20 * DOM element. | 20 * DOM element. |
21 */ | 21 */ |
22 interface PPP_Messaging { | 22 interface PPP_Messaging { |
23 /** | 23 /** |
24 * HandleMessage() is a function that the browser calls when PostMessage() | 24 * HandleMessage() is a function that the browser calls when PostMessage() |
25 * is invoked on the DOM element for the module instance in JavaScript. Note | 25 * is invoked on the DOM element for the module instance in JavaScript. Note |
26 * that PostMessage() in the JavaScript interface is asynchronous, meaning | 26 * that PostMessage() in the JavaScript interface is asynchronous, meaning |
27 * JavaScript execution will not be blocked while HandleMessage() is | 27 * JavaScript execution will not be blocked while HandleMessage() is |
28 * processing the message. | 28 * processing the message. |
29 * | 29 * |
30 * @param[in] instance A <code>PP_Instance</code> indentifying one instance | 30 * @param[in] instance A <code>PP_Instance</code> identifying one instance |
31 * of a module. | 31 * of a module. |
32 * @param[in] message A <code>PP_Var</code> containing the data to be sent | 32 * @param[in] message A <code>PP_Var</code> containing the data to be sent |
33 * to JavaScript. Message can have an int32_t, double, bool, or string value | 33 * to JavaScript. Message can have an int32_t, double, bool, or string value |
34 * (objects are not supported). | 34 * (objects are not supported). |
35 * | 35 * |
36 * <strong>Example:</strong> | |
37 * | |
38 * The following JavaScript code invokes <code>HandleMessage</code>, passing | 36 * The following JavaScript code invokes <code>HandleMessage</code>, passing |
39 * the module instance on which it was invoked, with <code>message</code> | 37 * the module instance on which it was invoked, with <code>message</code> |
40 * being a string <code>PP_Var</code> containing "Hello world!" | 38 * being a string <code>PP_Var</code> containing "Hello world!" |
41 * | 39 * |
42 * @code | 40 * <strong>Example:</strong> |
| 41 * |
| 42 * <code> |
43 * | 43 * |
44 * <body> | 44 * <body> |
45 * <object id="plugin" | 45 * <object id="plugin" |
46 * type="application/x-ppapi-postMessage-example"/> | 46 * type="application/x-ppapi-postMessage-example"/> |
47 * <script type="text/javascript"> | 47 * <script type="text/javascript"> |
48 * document.getElementById('plugin').postMessage("Hello world!"); | 48 * document.getElementById('plugin').postMessage("Hello world!"); |
49 * </script> | 49 * </script> |
50 * </body> | 50 * </body> |
51 * | 51 * |
52 * @endcode | 52 * </code> |
53 * | 53 * |
54 */ | 54 */ |
55 void HandleMessage([in] PP_Instance instance, [in] PP_Var message); | 55 void HandleMessage([in] PP_Instance instance, [in] PP_Var message); |
56 }; | 56 }; |
57 | 57 |
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