content/test/data/indexeddb/version_change_blocked.js

   1 // Copyright (c) 2012 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 test()
   6 {
   7   if (document.location.hash === '#tab1') {
   8     prepareDatabase(function () { doSetVersion(2); });
   9   } else if (document.location.hash === '#tab2') {
  10     doSetVersion(3);
  11   } else {
  12     result('fail - unexpected hash');
  13   }
  14 }
  15
  16 function prepareDatabase(callback)
  17 {
  18   // Prepare the database, then exit normally
  19   var delreq = window.indexedDB.deleteDatabase('version-change-blocked');
  20   delreq.onerror = unexpectedErrorCallback;
  21   delreq.onsuccess = function() {
  22     reOpen(callback);
  23   };
  24 }
  25
  26 function reOpen(callback)
  27 {
  28   request = indexedDB.open('version-change-blocked');
  29   request.onerror = unexpectedErrorCallback;
  30   request.onblocked = unexpectedBlockedCallback;
  31   request.onupgradeneeded = function() {
  32     db = event.target.result;
  33     db.createObjectStore("someobjectstore");
  34   };
  35   request.onsuccess = function() {
  36     db.close();
  37     callback();
  38   };
  39 }
  40
  41 function doSetVersion(version)
  42 {
  43   // Open the database and try a setVersion
  44   var openreq = window.indexedDB.open('version-change-blocked', version);
  45   openreq.onerror = unexpectedErrorCallback;
  46   var upgradeneededComplete = false;
  47   openreq.onblocked = function(e) {
  48     result('setVersion(' + version + ') blocked');
  49   };
  50   openreq.onupgradeneeded = function(e) {
  51     openreq.transaction.oncomplete = function(e2) {
  52       db = openreq.result;
  53       result('setVersion(' + version + ') complete');
  54     };
  55   };
  56 }