content/test/data/indexeddb/fill_up_5k.html

   1 <!DOCTYPE html>
   2 <html>
   3 <!--
   4   Copyright (c) 2013 The Chromium Authors. All rights reserved.
   5   Use of this source code is governed by a BSD-style license that can be
   6   found in the LICENSE file.
   7 -->
   8 <head>
   9 <title>IDB test that origins over quota aren't trapped Part 1 / 2</title>
  10 <script type="text/javascript" src="common.js"></script>
  11 <script>
  12
  13 function test() {
  14   indexedDBTest(prepareDatabase, startNewTransaction);
  15 }
  16
  17 function prepareDatabase()
  18 {
  19   db = event.target.result;
  20   objectStore = db.createObjectStore("test123");
  21   var len = 1024;
  22   data = Array(1+len).join("X");
  23   numTransactions = 0;
  24 }
  25
  26 function startNewTransaction() {
  27   debug("Starting new transaction.");
  28
  29   var trans = db.transaction(['test123'], 'readwrite');
  30   trans.onabort = unexpectedAbortCallback;
  31   trans.oncomplete = getQuotaAndUsage;
  32   var store = trans.objectStore('test123');
  33   request = store.put({x: data}, numTransactions);
  34   request.onerror = unexpectedErrorCallback;
  35 }
  36
  37 function getQuotaAndUsage() {
  38   numTransactions++;
  39   navigator.webkitTemporaryStorage.queryUsageAndQuota(
  40     usageCallback, unexpectedErrorCallback);
  41 }
  42
  43 function usageCallback(usage, quota) {
  44   debug("Transaction finished.");
  45   returnedUsage = usage;
  46   returnedQuota = quota;
  47   debug("Allotted quota is " + displaySize(returnedQuota));
  48   debug("LevelDB usage is " + displaySize(returnedUsage));
  49   if (returnedUsage < 5 * 1024)
  50     startNewTransaction();
  51   else
  52     done("Filled up " + returnedUsage);
  53 }
  54
  55 function displaySize(bytes) {
  56   var k = bytes / 1024;
  57   var m = k / 1024;
  58   return bytes + " (" + k + "k) (" + m + "m)";
  59 }
  60
  61 </script>
  62 </head>
  63 <body onLoad="test()">
  64 <div id="status">Starting...</div>
  65 </body>
  66 </html>