test_bug226361.xhtml

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<html xmlns="http://www.w3.org/1999/xhtml">

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=226361

-->

<head>

  <title>Test for Bug 226361</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/EventUtils.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body id="body1">

<p id="display">

 <a id="b1" tabindex="1" href="http://home.mozilla.org">start</a><br />

<br />

<iframe id="iframe" tabindex="2" src="bug226361_iframe.xhtml"></iframe>

 <a id="b2" tabindex="3" href="http://home.mozilla.org">end</a>

</p>

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

</div>

<pre id="test">

<script type="application/javascript">

<![CDATA[

/** Test for Bug 226361 **/

// accessibility.tabfocus must be set to value 7 before running test also

// on a mac.

function setTabFocus() {

  SpecialPowers.pushPrefEnv({ set: [[ "accessibility.tabfocus", 7 ]] }, doTest);

// =================================

var doc = document;

function tab_to(id) {

  synthesizeKey("KEY_Tab", {});

  is(doc.activeElement.id, id, "element with id=" + id + " should have focus");

function tab_iframe() {

  let canTabMoveFocusToRootElement = !SpecialPowers.getBoolPref("dom.disable_tab_focus_to_root_element");

  if (canTabMoveFocusToRootElement) {

    doc = document;

    tab_to('iframe');

  // inside iframe

  doc = document.getElementById('iframe').contentDocument

  tab_to('a3');tab_to('a5');tab_to('a1');tab_to('a2');tab_to('a4');

function doTest() {

  window.getSelection().removeAllRanges();

  document.getElementById('body1').focus();

  is(document.activeElement.id, document.body.id, "body element should be focused");

  doc = document;

  tab_to('b1');

  tab_iframe();

  doc=document

  document.getElementById('iframe').focus()

  tab_to('b2');

  // Change tabindex so the next TAB goes back to the IFRAME

  document.getElementById('iframe').setAttribute('tabindex','4');

  tab_iframe();

  SimpleTest.finish();

SimpleTest.waitForExplicitFinish();

addLoadEvent(setTabFocus);

]]>

</script>

</pre>

</body>

</html>