Chromium Code Reviews Chromium Code Reviews
Issue 23661005:
[NaCl SDK] Add a very simple getting_started example at top-level. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src| OLD | NEW |
|---|---|
| (Empty) | |
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 | |
| 4 <!-- | |
| 5 Copyright (c) 2012 The Native Client Authors. All rights reserved. | |
| 6 Use of this source code is governed by a BSD-style license that can be | |
| 7 found in the LICENSE file. | |
| 8 --> | |
| 9 | |
| 10 <head> | |
| 11 | |
| 12 <title>hello_tutorial</title> | |
| 13 | |
| 14 <script type="text/javascript"> | |
| 15 HelloTutorialModule = null; // Global application object. | |
| 16 statusText = 'NO-STATUS'; | |
| 17 | |
| 18 // Indicate load success. | |
| 19 function moduleDidLoad() { | |
| 20 HelloTutorialModule = document.getElementById('hello_tutorial'); | |
| 21 updateStatus('SUCCESS'); | |
| 22 } | |
| 23 | |
| 24 // The 'message' event handler. This handler is fired when the NaCl module | |
| 25 // posts a message to the browser by calling PPB_Messaging.PostMessage() | |
| 26 // (in C) or pp::Instance.PostMessage() (in C++). This implementation | |
| 27 // simply displays the content of the message in an alert panel. | |
| 28 function handleMessage(message_event) { | |
| 29 alert(message_event.data); | |
| 30 } | |
| 31 | |
| 32 // If the page loads before the Native Client module loads, then set the | |
| 33 // status message indicating that the module is still loading. Otherwise, | |
| 34 // do not change the status message. | |
| 35 function pageDidLoad() { | |
| 36 if (HelloTutorialModule == null) { | |
| 37 updateStatus('LOADING...'); | |
| 38 } else { | |
| 39 // It's possible that the Native Client module onload event fired | |
| 40 // before the page's onload event. In this case, the status message | |
| 41 // will reflect 'SUCCESS', but won't be displayed. This call will | |
| 42 // display the current message. | |
| 43 updateStatus(); | |
| 44 } | |
| 45 } | |
| 46 | |
| 47 // Set the global status message. If the element with id 'statusField' | |
| 48 // exists, then set its HTML to the status message as well. | |
| 49 // opt_message The message test. If this is null or undefined, then | |
| 50 // attempt to set the element with id 'statusField' to the value of | |
| 51 // |statusText|. | |
| 52 function updateStatus(opt_message) { | |
| 53 if (opt_message) | |
| 54 statusText = opt_message; | |
| 55 var statusField = document.getElementById('status_field'); | |
| 56 if (statusField) { | |
| 57 statusField.innerHTML = statusText; | |
| 58 } | |
| 59 } | |
| 60 </script> | |
| 61 </head> | |
| 62 <body onload="pageDidLoad()"> | |
| 63 | |
| 64 <h1>Native Client Module HelloTutorial</h1> | |
| 65 <p> | |
| 66 <!-- TODO(eliben): PNaCl-ize: | |
| 67 Load the published .nexe. This includes the 'nacl' attribute which | |
| 68 shows how to load multi-architecture modules. Each entry in the "nexes" | |
| 69 object in the .nmf manifest file is a key-value pair: the key is the | |
| 70 instruction set architecture ('x86-32', 'x86-64', etc.); the value is a URL | |
| 71 for the desired NaCl module. | |
| 72 To load the debug versions of your .nexes, set the 'nacl' attribute to the | |
| 73 _dbg.nmf version of the manifest file. | |
|
noelallen1
2013/09/09 04:32:00
We aren't building dbg in part1
binji
2013/09/09 18:43:46
Done.
| |
| 74 | |
| 75 Note: Since this NaCl module does not use any real-estate in the browser, | |
| 76 it's width and height are set to 0. | |
| 77 | |
| 78 Note: The <EMBED> element is wrapped inside a <DIV>, which has both a 'load' | |
| 79 and a 'message' event listener attached. This wrapping method is used | |
| 80 instead of attaching the event listeners directly to the <EMBED> element to | |
| 81 ensure that the listeners are active before the NaCl module 'load' event | |
| 82 fires. This also allows you to use PPB_Messaging.PostMessage() (in C) or | |
| 83 pp::Instance.PostMessage() (in C++) from within the initialization code in | |
| 84 your NaCl module. | |
| 85 --> | |
| 86 <div id="listener"> | |
| 87 <script type="text/javascript"> | |
| 88 var listener = document.getElementById('listener'); | |
| 89 listener.addEventListener('load', moduleDidLoad, true); | |
| 90 listener.addEventListener('message', handleMessage, true); | |
| 91 </script> | |
| 92 | |
| 93 <embed name="nacl_module" | |
| 94 id="hello_tutorial" | |
| 95 width=0 height=0 | |
| 96 src="hello_tutorial.nmf" | |
| 97 type="application/x-pnacl" /> | |
| 98 </div> | |
| 99 </p> | |
| 100 | |
| 101 <h2>Status</h2> | |
| 102 <div id="status_field">NO-STATUS</div> | |
| 103 </body> | |
| 104 </html> | |
| OLD | NEW |
