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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=787070
-->
<head>
  <meta charset="utf-8">
  <title>Test for Bug 787070</title>
  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=787070">Mozilla Bug 787070</a>
<p id="display"></p>
<div id="content" style="display: none">
<iframe id="t" src="http://example.org/tests/dom/bindings/test/file_dom_xrays.html"></iframe>
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 1021066 **/

var Cu = Components.utils;

// values should contain the values that the property should have on each of
// the objects on the prototype chain of obj. A value of undefined signals
// that the value should not be present on that prototype.
function checkXrayProperty(obj, name, values)
{
  var instance = obj;
  do {
    var value = values.shift();
    if (typeof value == "undefined") {
      ok(!obj.hasOwnProperty(name), "hasOwnProperty shouldn't see \"" + name + "\" through Xrays");
      is(Object.getOwnPropertyDescriptor(obj, name), undefined, "getOwnPropertyDescriptor shouldn't see \"" + name + "\" through Xrays");
      ok(Object.keys(obj).indexOf(name) == -1, "Enumerating the Xray should not return \"" + name + "\"");
    } else {
      ok(obj.hasOwnProperty(name), "hasOwnProperty should see \"" + name + "\" through Xrays");
      var pd = Object.getOwnPropertyDescriptor(obj, name);
      ok(pd, "getOwnPropertyDescriptor should see \"" + name + "\" through Xrays");
      if (pd && pd.get) {
        is(pd.get.call(instance), value, "Should get the right value for \"" + name + "\" through Xrays");
      } else {
        is(obj[name], value, "Should get the right value for \"" + name + "\" through Xrays");
      }
      if (pd && pd.enumerable) {
        ok(Object.keys(obj).indexOf("" + name) > -1, "Enumerating the Xray should return \"" + name + "\"");
      }
    }
  } while ((obj = Object.getPrototypeOf(obj)));
}

function checkWindowXrayProperty(obj, name, windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetValue)
{
  checkXrayProperty(obj, name, [ windowValue, windowPrototypeValue, namedPropertiesValue, eventTargetValue ]);
}

function test()
{
  // Window
  var win = document.getElementById("t").contentWindow;
  var doc = document.getElementById("t").contentDocument;

  var winProto = Object.getPrototypeOf(win);
  is(winProto, win.Window.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  var namedPropertiesObject = Object.getPrototypeOf(winProto);
  is(Cu.getClassName(namedPropertiesObject, /* unwrap = */ true), "WindowProperties", "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  var eventTargetProto = Object.getPrototypeOf(namedPropertiesObject);
  is(eventTargetProto, win.EventTarget.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  // Xrays need to filter expandos.
  checkWindowXrayProperty(win, "expando", undefined);
  ok(!("expando" in win), "Xrays should filter expandos");

  checkWindowXrayProperty(win, "shadowedIframe", undefined, undefined, doc.getElementById("shadowedIframe").contentWindow);
  ok("shadowedIframe" in win, "Named properties should be exposed through Xrays");

  // Named properties live on the named properties object for global objects.
  checkWindowXrayProperty(win, "iframe", undefined, undefined, doc.getElementById("iframe").contentWindow);
  ok("iframe" in win, "Named properties should be exposed through Xrays");

  // Window properties live on the instance, shadowing the properties of the named property object.
  checkWindowXrayProperty(win, "document", doc, undefined, doc.getElementById("document").contentWindow);
  ok("document" in win, "WebIDL properties should be exposed through Xrays");

  // Unforgeable properties live on the instance, shadowing the properties of the named property object.
  checkWindowXrayProperty(win, "self", win, undefined, doc.getElementById("self").contentWindow);
  ok("self" in win, "WebIDL properties should be exposed through Xrays");

  // Object.prototype is at the end of the prototype chain.
  var obj = win;
  while ((proto = Object.getPrototypeOf(obj))) {
    obj = proto;
  }
  is(obj, win.Object.prototype, "Object.prototype should be at the end of the prototype chain");

  // Named properties shouldn't shadow WebIDL- or ECMAScript-defined properties.
  checkWindowXrayProperty(win, "addEventListener", undefined, undefined, undefined, eventTargetProto.addEventListener);
  is(win.addEventListener, eventTargetProto.addEventListener, "Named properties shouldn't shadow WebIDL-defined properties");

  is(win.toString, win.Object.prototype.toString, "Named properties shouldn't shadow ECMAScript-defined properties");

  // HTMLDocument
  // Unforgeable properties live on the instance.
  checkXrayProperty(doc, "location", [ win.location ]);
  is(String(win.location), document.getElementById("t").src,
     "Should have the right stringification");

  // HTMLHtmlElement
  var elem = doc.documentElement;

  var elemProto = Object.getPrototypeOf(elem);
  is(elemProto, win.HTMLHtmlElement.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  elemProto = Object.getPrototypeOf(elemProto);
  is(elemProto, win.HTMLElement.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  elemProto = Object.getPrototypeOf(elemProto);
  is(elemProto, win.Element.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  elemProto = Object.getPrototypeOf(elemProto);
  is(elemProto, win.Node.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  elemProto = Object.getPrototypeOf(elemProto);
  is(elemProto, win.EventTarget.prototype, "The proto chain of the Xray should mirror the prototype chain of the Xrayed object");

  // Xrays need to filter expandos.
  ok(!("expando" in elem), "Xrays should filter expandos");

  // WebIDL-defined properties live on the prototype.
  checkXrayProperty(elem, "version", [ undefined, "" ]);
  is(elem.version, "", "WebIDL properties should be exposed through Xrays");

  // HTMLCollection
  var coll = doc.getElementsByTagName("iframe");

  // Named properties live on the instance for non-global objects.
  checkXrayProperty(coll, "iframe", [ doc.getElementById("iframe") ]);

  // Indexed properties live on the instance.
  checkXrayProperty(coll, 0, [ doc.getElementById("shadowedIframe") ]);

  // WebIDL-defined properties live on the prototype, overriding any named properties.
  checkXrayProperty(coll, "item", [ undefined, win.HTMLCollection.prototype.item ]);

  // ECMAScript-defined properties live on the prototype, overriding any named properties.
  checkXrayProperty(coll, "toString", [ undefined, undefined, win.Object.prototype.toString ]);

  // Frozen arrays should come from our compartment, not the target one.
  var languages1 = win.navigator.languages;
  isnot(languages1, undefined, "Must have .languages");
  ok(Array.isArray(languages1), ".languages should be an array");
  ok(Object.isFrozen(languages1), ".languages should be a frozen array");
  ok(!Cu.isXrayWrapper(languages1), "Should have our own version of array");
  is(Cu.getGlobalForObject(languages1), window,
     "languages1 should come from our window");
  // We want to get .languages in the content compartment, but without waiving
  // Xrays altogether.
  var languages2 = win.eval("navigator.languages");
  isnot(languages2, undefined, "Must still have .languages");
  ok(Array.isArray(languages2), ".languages should still be an array");
  ok(Cu.isXrayWrapper(languages2), "Should have xray for content version of array");
  is(Cu.getGlobalForObject(languages2), win,
     "languages2 come from the underlying window");
  ok(Object.isFrozen(languages2.wrappedJSObject),
     ".languages should still be a frozen array underneath");
  isnot(languages1, languages2, "Must have distinct arrays");
  isnot(languages1, languages2.wrappedJSObject,
        "Must have distinct arrays no matter how we slice it");

  // Check that DataTransfer's .types has the hack to alias contains()
  // to includes().
  var dataTransfer = new win.DataTransfer("foo", true);
  is(dataTransfer.types.contains, dataTransfer.types.includes,
     "Should have contains() set up as an alias to includes()");
  // Waive Xrays on the dataTransfer itself, since the .types we get is
  // different over Xrays vs not.
  is(dataTransfer.wrappedJSObject.types.contains, undefined,
     "Underlying object should not have contains() set up as an alias to " +
     "includes()");

  // Check that deleters work correctly in the [OverrideBuiltins] case.
  var elem = win.document.documentElement;
  var dataset = elem.dataset;
  is(dataset.foo, undefined, "Should not have a 'foo' property");
  ok(!('foo' in dataset), "Really should not have a 'foo' property");
  is(elem.getAttribute("data-foo"), null,
     "Should not have a 'data-foo' attribute");
  ok(!elem.hasAttribute("data-foo"),
     "Really should not have a 'data-foo' attribute");
  dataset.foo = "bar";
  is(dataset.foo, "bar", "Should now have a 'foo' property");
  ok('foo' in dataset, "Really should have a 'foo' property");
  is(elem.getAttribute("data-foo"), "bar",
     "Should have a 'data-foo' attribute");
  ok(elem.hasAttribute("data-foo"),
     "Really should have a 'data-foo' attribute");
  delete dataset.foo;
  is(dataset.foo, undefined, "Should not have a 'foo' property again");
  ok(!('foo' in dataset), "Really should not have a 'foo' property again");
  is(elem.getAttribute("data-foo"), null,
     "Should not have a 'data-foo' attribute again");
  ok(!elem.hasAttribute("data-foo"),
     "Really should not have a 'data-foo' attribute again");

  // Check that deleters work correctly in the non-[OverrideBuiltins] case.
  var storage = win.sessionStorage;
  is(storage.foo, undefined, "Should not have a 'foo' property");
  ok(!('foo' in storage), "Really should not have a 'foo' property");
  is(storage.getItem("foo"), null, "Should not have an item named 'foo'");
  storage.foo = "bar";
  is(storage.foo, "bar", "Should have a 'foo' property");
  ok('foo' in storage, "Really should have a 'foo' property");
  is(storage.getItem("foo"), "bar", "Should have an item named 'foo'");
  delete storage.foo
  is(storage.foo, undefined, "Should not have a 'foo' property again");
  ok(!('foo' in storage), "Really should not have a 'foo' property again");
  is(storage.getItem("foo"), null, "Should not have an item named 'foo' again");

  SimpleTest.finish();
}

SimpleTest.waitForExplicitFinish();
addLoadEvent(test);

</script>
</pre>
</body>
</html>