chrome/browser/resources/sync_file_system_internals/sync_service.js

   1 // Copyright 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 /**
   6  * WebUI to monitor the Sync File System Service.
   7  */
   8 var SyncService = (function() {
   9 'use strict';
  10
  11 var SyncService = {};
  12
  13 /**
  14  * Request Sync Service Status.
  15  */
  16 function getServiceStatus() {
  17   chrome.send('getServiceStatus');
  18 }
  19
  20 /**
  21  * Called when service status is initially retrieved or updated via events.
  22  * @param {string} Service status enum as a string.
  23  */
  24 SyncService.onGetServiceStatus = function(statusString) {
  25   $('service-status').textContent = statusString;
  26 }
  27
  28 /**
  29  * Request Google Drive Notification Source. e.g. XMPP or polling.
  30  */
  31 function getNotificationSource() {
  32   chrome.send('getNotificationSource');
  33 }
  34
  35 /**
  36  * Handles callback from getNotificationSource.
  37  * @param {string} Notification source as a string.
  38  */
  39 SyncService.onGetNotificationSource = function(sourceString) {
  40   $('notification-source').textContent = sourceString;
  41 }
  42
  43 // Keeps track of the last log event seen so it's not reprinted.
  44 var lastLogEventId = -1;
  45
  46 /**
  47  * Request debug log.
  48  */
  49 function getLog() {
  50   chrome.send('getLog', [lastLogEventId]);
  51 }
  52
  53 /**
  54  * Clear old logs.
  55  */
  56 function clearLogs() {
  57   chrome.send('clearLogs');
  58   $('log-entries').innerHTML = '';
  59 }
  60
  61 /**
  62  * Handles callback from getUpdateLog.
  63  * @param {Array} list List of dictionaries containing 'id', 'time', 'logEvent'.
  64  */
  65 SyncService.onGetLog = function(logEntries) {
  66   var itemContainer = $('log-entries');
  67   for (var i = 0; i < logEntries.length; i++) {
  68     var logEntry = logEntries[i];
  69     var tr = document.createElement('tr');
  70     var error = /ERROR/.test(logEntry.logEvent) ? ' error' : '';
  71     tr.appendChild(createElementFromText('td', logEntry.time,
  72                                          {'class': 'log-time'}));
  73     tr.appendChild(createElementFromText('td', logEntry.logEvent,
  74                                          {'class': 'log-event' + error}));
  75     itemContainer.appendChild(tr);
  76
  77     lastLogEventId = logEntry.id;
  78   }
  79 }
  80
  81 /**
  82  * Get initial sync service values and set listeners to get updated values.
  83  */
  84 function main() {
  85   cr.ui.decorate('tabbox', cr.ui.TabBox);
  86   $('clear-log-button').addEventListener('click', clearLogs);
  87   getServiceStatus();
  88   getNotificationSource();
  89
  90   // TODO: Look for a way to push entries to the page when necessary.
  91   window.setInterval(getLog, 1000);
  92 }
  93
  94 document.addEventListener('DOMContentLoaded', main);
  95 return SyncService;
  96 })();