[NaCl SDK] Google Drive example

native_client_sdk/src/examples/demo/drive/example.js

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+"use strict";
+
+var authToken = '';
+var driveFilesUrl = 'https://www.googleapis.com/drive/v2/files';
+var driveFilesUploadUrl = 'https://www.googleapis.com/upload/drive/v2/files';
+var multipartBoundary = 'END_OF_PART';
+
+function $(id) {
+  return document.getElementById(id);
+}
+
+function getAuthToken(interactive) {
+  chrome.experimental.identity.getAuthToken(
+      {'interactive': interactive}, onGetAuthToken);
+}
+
+function onGetAuthToken(authToken) {
+  var signInEl = $('signIn');
+  var getFileEl = $('getFile');
+  if (authToken) {
+    signInEl.style.display = 'none';
+    getFileEl.style.display = 'block';
+    window.authToken =  authToken;
+
+    // Send the auth token to the NaCl module.
+    common.naclModule.postMessage('token:'+authToken);
+  } else {
+    signInEl.style.display = 'block';
+    getFileEl.style.display = 'none';
+  }
+};
+
+// Called by the common.js module.
+function moduleDidLoad() {
+  // The module is not hidden by default so we can easily see if the plugin
+  // failed to load.
+  common.hideModule();

[noelallen1, 2013/04/30 18:46:08]

We should probably make this the default behavior...

If a module does not set the size of the nacl embed, then start it big enough to
show the broken image, then hide it when loaded.

+
+  getAuthToken(false);
+}
+
+function handleMessage(e) {
+  var msg = e.data;
+  $('contents').textContent = msg;
+}
+
+// Called by the common.js module.
+function attachListeners() {
+  $('signIn').addEventListener('click', function () {
+    getAuthToken(true);
+  });
+
+  $('getFile').addEventListener('click', function () {
+    $('contents').textContent = '';
+    common.naclModule.postMessage('getFile');
+  });
+}