third_party/WebKit/LayoutTests/fast/events/before-unload-adopt-within-subframes.html

   1 <!DOCTYPE html>
   2 <html>
   3 <body>
   4 <p>This test ensures beforeunload event fires exactly once in a subframe even if the frame was adopted to a frame that appears later in the tree.</p>
   5 <pre id="log"></pre>
   6 <script>
   7
   8 if (window.testRunner) {
   9     testRunner.dumpAsText();
  10     testRunner.waitUntilDone();
  11 }
  12
  13 function createFrame(id, parent) {
  14     var iframe = document.createElement('iframe');
  15     if (parent)
  16         parent.contentDocument.body.appendChild(iframe);
  17     else
  18         document.body.appendChild(iframe);
  19     iframe.contentDocument.body.appendChild(iframe.contentDocument.createTextNode(id));
  20     iframe.contentDocument.body.appendChild(iframe.contentDocument.createElement('br'));
  21     iframe.contentWindow.onbeforeunload = function () { fired(iframe.contentWindow, id); return null; }
  22     iframe.style.width = '70%';
  23     iframe.style.height = '40%';
  24     return iframe;
  25 }
  26
  27 function log(message) {
  28     var log = document.getElementById('log');
  29     log.innerHTML += message + '\n';
  30 }
  31
  32 var expectedOrder = ['parent', 'a', 'adoptee', 'b'];
  33 var i = 0;
  34
  35 function fired(contentWindow, id) {
  36     if (expectedOrder[i] == id)
  37         log('PASS: fired on ' + id);
  38     else
  39         log('FAIL: fired on ' + id + ' but expected on ' + expectedOrder[i]);
  40     i++;
  41
  42     if (contentWindow == adoptee.contentWindow) {
  43         log('adopting');
  44         b.contentDocument.body.appendChild(b.contentDocument.adoptNode(adoptee));
  45         log('adopted');
  46     }
  47 }
  48
  49 var container = createFrame('parent');
  50 var a = createFrame('a', container);
  51 var adoptee = createFrame('adoptee', a);
  52 var b = createFrame('b', container);
  53
  54 container.onload = function () {
  55     if (i == expectedOrder.length)
  56         log('DONE');
  57     else
  58         log('Received ' + i + ' events but expected ' + expectedOrder.length);
  59     if (window.testRunner)
  60         testRunner.notifyDone();
  61 }
  62 container.src = 'resources/before-unload-in-subframe-destination.html';
  63
  64 </script>
  65 </body>
  66 </html>