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| 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>postMessage Example</title> |
| 10 </head> |
| 11 |
| 12 <body> |
| 13 |
| 14 <script type="text/javascript"> |
| 15 |
| 16 function SendString() { |
| 17 plugin = document.getElementById('plugin'); |
| 18 |
| 19 // If we haven't already done it, set up an 'onmessage' function. This will |
| 20 // get invoked whenever the plugin calls Instance::PostMessage in C++ (or |
| 21 // PPB_Messaging::PostMessage in C). In this case, we're expecting a bool to |
| 22 // tell us whether the string we passed was a palindrome. |
| 23 if (!plugin.onmessage) { |
| 24 plugin.onmessage = function(message_event) { |
| 25 if (message_event.data) { |
| 26 alert("The string was a palindrome."); |
| 27 } else { |
| 28 alert("The string was not a palindrome."); |
| 29 } |
| 30 } |
| 31 } |
| 32 |
| 33 var inputBox = document.getElementById("inputBox"); |
| 34 |
| 35 // Send the string to the plugin using postMessage. This results in a call |
| 36 // to Instance::HandleMessage in C++ (or PPP_Messaging::HandleMessage in C). |
| 37 plugin.postMessage(inputBox.value); |
| 38 } |
| 39 |
| 40 </script> |
| 41 |
| 42 <input type="text" id="inputBox" name="inputBox" value="ablewasiereisawelba"/> |
| 43 <p> |
| 44 <button onclick='SendString()'>Is Palindrome</button> |
| 45 <object id="plugin" type="application/x-ppapi-post-message-example" |
| 46 width="0" height="0"/> |
| 47 <hr> |
| 48 </body> |
| 49 </html> |
| 50 |
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Chromium Code Reviews
Issue 6716005:
A proposal and implementation for an initial postMessage interface. These in... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/