example.js revision c2e0dbddbe15c98d52c4786dac06cb8952a8ae6d 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Called by the common.js module.
6function domContentLoaded(name, tc, config, width, height) {
7  window.webkitStorageInfo.requestQuota(window.PERSISTENT, 1024*1024,
8      function(bytes) {
9        common.updateStatus(
10            'Allocated '+bytes+' bytes of persistant storage.');
11        common.createNaClModule(name, tc, config, width, height);
12        common.attachDefaultListeners();
13      },
14      function(e) { alert('Failed to allocate space') });
15}
16
17// Called by the common.js module.
18function attachListeners() {
19  document.getElementById('saveButton').addEventListener('click', saveFile);
20  document.getElementById('loadButton').addEventListener('click', loadFile);
21  document.getElementById('deleteButton').addEventListener('click', deleteFile);
22}
23
24function loadFile() {
25  if (common.naclModule) {
26    var fileName = document.getElementById('fileName').value;
27
28    // Package a message using a simple protocol containing:
29    // instruction file_name_length file_name
30    var msg = "ld " + fileName.length + " " + fileName;
31    common.naclModule.postMessage(msg);
32  }
33}
34
35function saveFile() {
36  if (common.naclModule) {
37    var fileName = document.getElementById('fileName').value;
38    var fileText = document.getElementById('fileEditor').value;
39
40    // Package a message using a simple protocol containing:
41    // instruction file_name_length file_name file_contents
42    var msg = "sv " + fileName.length + " " + fileName + " " + fileText;
43    common.naclModule.postMessage(msg);
44  }
45}
46
47function deleteFile() {
48  if (common.naclModule) {
49    var fileName = document.getElementById('fileName').value;
50
51    // Package a message using a simple protocol containing:
52    // instruction file_name_length file_name
53    var msg = "de " + fileName.length + " " + fileName;
54    common.naclModule.postMessage(msg);
55  }
56}
57
58// Called by the common.js module.
59function handleMessage(message_event) {
60  var messageParts = message_event.data.split("|", 3);
61
62  if (messageParts[0] == "ERR") {
63    common.updateStatus(messageParts[1]);
64    document.getElementById('statusField').style.color = "red";
65  }
66  else if(messageParts[0] == "STAT") {
67    common.updateStatus(messageParts[1]);
68  }
69  else if (messageParts[0] == "DISP") {
70    // Display the message in the file edit box
71    document.getElementById('fileEditor').value = messageParts[1];
72  }
73  else if (messageParts[0] == "READY") {
74    var statusField = document.getElementById('statusField');
75    common.updateStatus(statusField.innerHTML + ' Ready!');
76  }
77}
78