test_dochierarchy.html

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<!DOCTYPE html>

<html>

<head>

  <title>Test document hierarchy</title>

  <link rel="stylesheet" type="text/css"

        href="chrome://mochikit/content/tests/SimpleTest/test.css" />

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

  <script type="application/javascript"

          src="../common.js"></script>

  <script type="application/javascript"

          src="../role.js"></script>

  <script type="application/javascript"

          src="../states.js"></script>

  <script type="application/javascript">

  function doTest() {

    // tabDoc and testDoc are different documents depending on whether test

    // is running in standalone mode or not.

    var root = getRootAccessible();

    var tabDoc = window.parent ?

      getAccessible(window.parent.document, [nsIAccessibleDocument]) :

      getAccessible(document, [nsIAccessibleDocument]);

    var testDoc = getAccessible(document, [nsIAccessibleDocument]);

    var iframeDoc = getAccessible("iframe").firstChild.

      QueryInterface(nsIAccessibleDocument);

    is(root.parentDocument, null,

       "Wrong parent document of root accessible");

    ok(root.childDocumentCount >= 1,

       "Wrong child document count of root accessible");

    var tabDocumentFound = false;

    for (var i = 0; i < root.childDocumentCount && !tabDocumentFound; i++) {

      tabDocumentFound = root.getChildDocumentAt(i) == tabDoc;

    ok(tabDocumentFound,

       "Tab document not found in children of the root accessible");

    is(tabDoc.parentDocument, root,

       "Wrong parent document of tab document");

    is(tabDoc.childDocumentCount, 1,

       "Wrong child document count of tab document");

    is(tabDoc.getChildDocumentAt(0), (tabDoc == testDoc ? iframeDoc : testDoc),

       "Wrong child document at index 0 of tab document");

    if (tabDoc != testDoc) {

      is(testDoc.parentDocument, tabDoc,

         "Wrong parent document of test document");

      is(testDoc.childDocumentCount, 1,

         "Wrong child document count of test document");

      is(testDoc.getChildDocumentAt(0), iframeDoc,

         "Wrong child document at index 0 of test document");

    is(iframeDoc.parentDocument, (tabDoc == testDoc ? tabDoc : testDoc),

       "Wrong parent document of iframe document");

    is(iframeDoc.childDocumentCount, 0,

       "Wrong child document count of iframe document");

    SimpleTest.finish();

  SimpleTest.waitForExplicitFinish();

  addA11yLoadEvent(doTest);

  </script>

</head>

<body>

  <a target="_blank"

     href="https://bugzilla.mozilla.org/show_bug.cgi?id=592913"

     title="Provide a way to quickly determine whether an accessible object is a descendant of a tab document">

    Mozilla Bug 592913

  </a>

  <p id="display"></p>

  <div id="content" style="display: none"></div>

  <pre id="test">

  </pre>

  <iframe src="about:mozilla" id="iframe"></iframe>

</body>

</html>