text: <?xml version="1.0"?>
  <?xml-stylesheet href="chrome://global/skin" type="text/css"?>
  <window title="Mozilla Bug 449778" onload="doTheTest()"
    xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  
    <hbox id="parent">
    </hbox>
  
    <!-- test code goes here -->
    <script type="application/javascript"><![CDATA[
      var imports = [ "SimpleTest", "is", "isnot", "ok", "onerror" ];
      for (var name of imports) {
        window[name] = window.opener.wrappedJSObject[name];
      }
  
      function $(id) {
        return document.getElementById(id);
      }
  
      function addBrowser(parent, id, width, height) {
        var b =
          document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "browser");
        b.setAttribute("type", "content");
        b.setAttribute("id", id);
        b.setAttribute("width", width);
        b.setAttribute("height", height);
        $(parent).appendChild(b);
      }
      addBrowser("parent", "f1", 300, 200);
      addBrowser("parent", "f2", 300, 200);
  
      /** Test for Bug 449778 **/
      var doc1 = "data:text/html,<html><body>This is a test</body></html>";
      var doc2 = "data:text/html,<html><body>This is a second test</body></html>";
      var doc3 = "data:text/html,<html><body>This is a <script>var evt = document.createEvent('Events'); evt.initEvent('testEvt', true, true); document.dispatchEvent(evt);</script>third test</body></html>";
  
  
      $("f1").setAttribute("src", doc1);
      $("f2").setAttribute("src", doc2);
  
      function doTheTest() {
        var strs = { "f1": "", "f2" : "" };
        function attachListener(node, type) {
          var listener = function(e) {
            if (strs[node.id]) strs[node.id] += " ";
            strs[node.id] += node.id + ".page" + type;
          }
          node.addEventListener("page" + type, listener, false);
  
          listener.detach = function() {
            node.removeEventListener("page" + type, listener, false);
          }
          return listener;
        }
  
        var l1 = attachListener($("f1"), "show");
        var l2 = attachListener($("f1"), "hide");
        var l3 = attachListener($("f2"), "show");
        var l4 = attachListener($("f2"), "hide");
  
        $("f1").swapDocShells($("f2"));
  
        is(strs["f1"], "f1.pagehide f1.pageshow",
                "Expected hide then show on first loaded page");
        is(strs["f2"], "f2.pagehide f2.pageshow",
                "Expected hide then show on second loaded page");
  
        function listener2() {
          $("f2").removeEventListener("testEvt", listener2, false);
  
          strs = { "f1": "", "f2" : "" };
  
          $("f1").swapDocShells($("f2"));
          is(strs["f1"], "f1.pagehide",
             "Expected hide on already-loaded page, then nothing");
          is(strs["f2"], "f2.pageshow f2.pagehide f2.pageshow",
             "Expected show on still-loading page, then hide on it, then show " +
             "on already-loaded page");
  
          strs = { "f1": "", "f2" : "" };
  
          $("f1").addEventListener("pageshow", listener3, false);
        }
  
        function listener3() {
          $("f1").removeEventListener("pageshow", listener3, false);
  
          is(strs["f1"], "f1.pageshow",
             "Expected show as our page finishes loading");
          is(strs["f2"], "", "Expected no more events here.");
  
          l1.detach();
          l2.detach();
          l3.detach();
          l4.detach();
  
          window.close();
          SimpleTest.finish();
        }
  
        $("f2").addEventListener("testEvt", listener2, false, true);
        $("f2").setAttribute("src", doc3);
      }
  
    ]]></script>
  </window>
  