gdata: Add GCache Contents section to chrome:drive-internals

chrome/browser/resources/chromeos/drive_internals.js

 // Copyright (c) 2012 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.
 
 /**
  * Updates the Authentication Status section.
- * @param {Object} auth_status Dictionary containing auth status.
+ * @param {Object} authStatus Dictionary containing auth status.
  */
-function UpdateAuthStatus(auth_status) {
-  $('has-refresh-token').textContent = auth_status['has-refresh-token'];
-  $('has-access-token').textContent = auth_status['has-access-token'];
+function updateAuthStatus(authStatus) {
+  $('has-refresh-token').textContent = authStatus['has-refresh-token'];
+  $('has-access-token').textContent = authStatus['has-access-token'];
+}
+
+/**
+ * Updates the GCache Contents section.
+ * @param {Array} gcacheContents List of dictionaries describing metadata
+ * of files and directories under the GCache directory.
+ */
+function updateGCacheContents(gcacheContents) {
+  var tbody = $('gcache-contents');
+  // Add a header row.
+  var tr = document.createElement('tr');
+  tr.appendChild(createElementFromText('th', 'Path'));
+  tr.appendChild(createElementFromText('th', 'Size'));
+  tr.appendChild(createElementFromText('th', 'Last Modified'));
+  tbody.appendChild(tr);
+
+  for (var i = 0; i < gcacheContents.length; i++) {
+    var entry = gcacheContents[i];
+    var tr = document.createElement('tr');
+
+    // Add some suffix based on the type.
+    var path = entry.path;
+    if (entry.is_directory)
+      path += '/';
+    else if (entry.is_symbolic_link)
+      path += '@';
+
+    tr.appendChild(createElementFromText('td', path));
+    tr.appendChild(createElementFromText('td', entry.size));
+    tr.appendChild(createElementFromText('td', entry.last_modified));
+    tbody.appendChild(tr);
+  }
+}
+
+/**
+ * Creates an element named |elementName| containing the content |text|.
+ * @param {string} elementName Name of the new element to be created.
+ * @param {string} text Text to be contained in the new element.
+ * @return {HTMLElement} The newly created HTML element.
+ */
+function createElementFromText(elementName, text) {
+  var element = document.createElement(elementName);
+  element.appendChild(document.createTextNode(text));
+  return element;
 }
 
 document.addEventListener('DOMContentLoaded', function() {
   chrome.send('pageLoaded');
 });