| OLD | NEW |
|---|
| (Empty) |
| 1 <!DOCTYPE html> | |
| 2 <html> | |
| 3 <!-- | |
| 4 Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
| 5 Use of this source code is governed by a BSD-style license that can be | |
| 6 found in the LICENSE file. | |
| 7 --> | |
| 8 <head> | |
| 9 <title>Hello, World!</title> | |
| 10 | |
| 11 <script type="text/javascript"> | |
| 12 helloWorldModule = null; // Global application object. | |
| 13 statusText = 'NO-STATUS'; | |
| 14 | |
| 15 // Indicate success when the NaCl module has loaded. | |
| 16 function moduleDidLoad() { | |
| 17 helloWorldModule = document.getElementById('hello_world'); | |
| 18 updateStatus('SUCCESS'); | |
| 19 } | |
| 20 | |
| 21 // Handle a message coming from the NaCl module. | |
| 22 function handleMessage(message_event) { | |
| 23 alert(message_event.data); | |
| 24 } | |
| 25 | |
| 26 // If the page loads before the Native Client module loads, then set the | |
| 27 // status message indicating that the module is still loading. Otherwise, | |
| 28 // do not change the status message. | |
| 29 function pageDidLoad() { | |
| 30 // Set the focus on the text input box. Doing this means you can press | |
| 31 // return as soon as the page loads, and it will fire the reversetText() | |
| 32 // function. | |
| 33 document.forms.helloForm.inputBox.focus(); | |
| 34 if (helloWorldModule == null) { | |
| 35 updateStatus('LOADING...'); | |
| 36 } else { | |
| 37 // It's possible that the Native Client module onload event fired | |
| 38 // before the page's onload event. In this case, the status message | |
| 39 // will reflect 'SUCCESS', but won't be displayed. This call will | |
| 40 // display the current message. | |
| 41 updateStatus(); | |
| 42 } | |
| 43 } | |
| 44 | |
| 45 function fortyTwo() { | |
| 46 helloWorldModule.postMessage('fortyTwo'); | |
| 47 } | |
| 48 | |
| 49 function reverseText() { | |
| 50 // Grab the text from the text box, pass it into reverseText() | |
| 51 var inputBox = document.forms.helloForm.inputBox; | |
| 52 helloWorldModule.postMessage('reverseText:' + inputBox.value); | |
| 53 // Note: a |false| return tells the <form> tag to cancel the GET action | |
| 54 // when submitting the form. | |
| 55 return false; | |
| 56 } | |
| 57 | |
| 58 // Set the global status message. If the element with id 'statusField' | |
| 59 // exists, then set its HTML to the status message as well. | |
| 60 // opt_message The message test. If this is null or undefined, then | |
| 61 // attempt to set the element with id 'statusField' to the value of | |
| 62 // |statusText|. | |
| 63 function updateStatus(opt_message) { | |
| 64 if (opt_message) | |
| 65 statusText = opt_message; | |
| 66 var statusField = document.getElementById('statusField'); | |
| 67 if (statusField) { | |
| 68 statusField.innerHTML = statusText; | |
| 69 } | |
| 70 } | |
| 71 </script> | |
| 72 </head> | |
| 73 <body onload="pageDidLoad()"> | |
| 74 | |
| 75 <h1>Native Client Simple Module</h1> | |
| 76 <p> | |
| 77 <form name="helloForm" | |
| 78 action="" | |
| 79 method="get" | |
| 80 onsubmit="return reverseText()"> | |
| 81 <input type="text" id="inputBox" name="inputBox" value="Hello world" /><p/> | |
| 82 <input type="button" value="Call fortyTwo()" onclick="fortyTwo()" /> | |
| 83 <input type="submit" value="Call reverseText()" /> | |
| 84 </form> | |
| 85 <!-- Load the published .nexe. This includes the 'src' attribute which | |
| 86 shows how to load multi-architecture modules. Each entry in the "nexes" | |
| 87 object in the .nmf manifest file is a key-value pair: the key is the runtime | |
| 88 ('x86-32', 'x86-64', etc.); the value is a URL for the desired NaCl module. | |
| 89 To load the debug versions of your .nexes, set the 'src' attribute to the | |
| 90 _dbg.nmf version of the manifest file. | |
| 91 | |
| 92 Note: The <EMBED> element is wrapped inside a <DIV>, which has both a 'load' | |
| 93 and a 'message' event listener attached. This wrapping method is used | |
| 94 instead of attaching the event listeners directly to the <EMBED> element to | |
| 95 ensure that the listeners are active before the NaCl module 'load' event | |
| 96 fires. This also allows you to use PPB_Messaging.PostMessage() (in C) or | |
| 97 pp::Instance.PostMessage() (in C++) from within the initialization code in | |
| 98 your NaCl module. | |
| 99 --> | |
| 100 <div id="listener"> | |
| 101 <script type="text/javascript"> | |
| 102 var listener = document.getElementById('listener') | |
| 103 listener.addEventListener('load', moduleDidLoad, true); | |
| 104 listener.addEventListener('message', handleMessage, true); | |
| 105 </script> | |
| 106 | |
| 107 <embed name="nacl_module" | |
| 108 id="hello_world" | |
| 109 width=0 height=0 | |
| 110 src="hello_world.nmf" | |
| 111 type="application/x-nacl" /> | |
| 112 </div> | |
| 113 | |
| 114 </p> | |
| 115 | |
| 116 <p>If the module is working correctly, a click on the "Call fortyTwo()" button | |
| 117 should open a popup dialog containing <b>42</b> as its value.</p> | |
| 118 | |
| 119 <p> Clicking on the "Call reverseText()" button | |
| 120 should open a popup dialog containing the textbox contents and its reverse | |
| 121 as its value.</p> | |
| 122 | |
| 123 <h2>Status</h2> | |
| 124 <div id="statusField">NO-STATUS</div> | |
| 125 </body> | |
| 126 </html> | |
| OLD | NEW |
|---|
Chromium Code Reviews
