native_client_sdk/src/examples/api/graphics_3d/example.js

   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
   5 function $(id) {
   6   return document.getElementById(id);
   7 }
   8
   9 function postAngleMessage() {
  10   var xAngle = parseFloat($('xAngle').value);
  11   var yAngle = parseFloat($('yAngle').value);
  12   common.naclModule.postMessage([xAngle, yAngle]);
  13 }
  14
  15 // Add event listeners after the NaCl module has loaded.  These listeners will
  16 // forward messages to the NaCl module via postMessage()
  17 function attachListeners() {
  18   $('xAngle').addEventListener('change', postAngleMessage);
  19   $('yAngle').addEventListener('change', postAngleMessage);
  20   $('animateOff').addEventListener('click', function() {
  21     $('animateOn').checked = '';
  22     common.naclModule.postMessage(false);
  23   });
  24   $('animateOn').addEventListener('click', function() {
  25     $('animateOff').checked = '';
  26     common.naclModule.postMessage(true);
  27   });
  28 }
  29
  30 // Handle a message coming from the NaCl module.
  31 function handleMessage(event) {
  32   if (!(event.data instanceof Array))
  33     return;
  34   if (event.data.length != 2)
  35     return;
  36
  37   var xAngle = event.data[0];
  38   var yAngle = event.data[1];
  39   $('xAngle').value = xAngle;
  40   $('yAngle').value = yAngle;
  41 }