example.js revision eb525c5499e34cc9c4b825d6d9e75bb07cc06ace 
1// Copyright (c) 2013 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
5function moduleDidLoad() {
6}
7
8function postThreadFunc(numThreads) {
9  return function () {
10    common.naclModule.postMessage({'message' : 'set_threads',
11                                   'value' : numThreads});
12  }
13}
14
15// Add event listeners after the NaCl module has loaded.  These listeners will
16// forward messages to the NaCl module via postMessage()
17function attachListeners() {
18  document.getElementById('benchmark').addEventListener('click',
19    function() {
20      common.naclModule.postMessage({'message' : 'run_benchmark'});
21      common.updateStatus('BENCHMARKING... (please wait)');
22    });
23  document.getElementById('drawPoints').addEventListener('click',
24    function() {
25      var checked = document.getElementById('drawPoints').checked;
26      common.naclModule.postMessage({'message' : 'draw_points',
27                                     'value' : checked});
28    });
29  document.getElementById('drawInteriors').addEventListener('click',
30    function() {
31      var checked = document.getElementById('drawInteriors').checked;
32      common.naclModule.postMessage({'message' : 'draw_interiors',
33                                     'value' : checked});
34    });
35  var threads = [0, 1, 2, 4, 6, 8, 12, 16, 24, 32];
36  for (var i = 0; i < threads.length; i++) {
37    document.getElementById('radio' + i).addEventListener('click',
38        postThreadFunc(threads[i]));
39  }
40  document.getElementById('pointRange').addEventListener('change',
41    function() {
42      var value = parseFloat(document.getElementById('pointRange').value);
43      common.naclModule.postMessage({'message' : 'set_points',
44                                     'value' : value});
45      document.getElementById('pointCount').textContent = value + ' points';
46    });
47}
48
49// Handle a message coming from the NaCl module.
50// In the Voronoi example, the only message will be the benchmark result.
51function handleMessage(message_event) {
52  if (message_event.data['message'] == 'benchmark_result') {
53    var x = (Math.round(message_event.data['value'] * 1000) / 1000).toFixed(3);
54    document.getElementById('result').textContent =
55      'Result: ' + x + ' seconds';
56    common.updateStatus('SUCCESS')
57  }
58}
59
60