<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1288591
-->
<head>
  <title>Test tabindex attribute for date/time input types</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>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1288591">Mozilla Bug 1288591</a>
<p id="display"></p>
<div id="content">
  <input id="time1" type="time" tabindex="0">
  <input id="time2" type="time" tabindex="-1">
  <input id="time3" type="time" tabindex="0">
  <input id="time4" type="time" disabled>
  <input id="date1" type="date" tabindex="0">
  <input id="date2" type="date" tabindex="-1">
  <input id="date3" type="date" tabindex="0">
  <input id="date4" type="date" disabled>
  <input id="datetime-local1" type="datetime-local" tabindex="0">
  <input id="datetime-local2" type="datetime-local" tabindex="-1">
  <input id="datetime-local3" type="datetime-local" tabindex="0">
  <input id="datetime-local4" type="datetime-local" disabled>
</div>
<pre id="test">
<script>
/**
 * Test for Bug 1288591.
 * This test checks whether date/time input types tabindex attribute works
 * correctly.
 **/
SimpleTest.waitForExplicitFinish();
SimpleTest.waitForFocus(function() {
  test();
  SimpleTest.finish();
});

function checkInnerTextboxTabindex(input, tabindex) {
  let fields = SpecialPowers.wrap(input).openOrClosedShadowRoot.querySelectorAll(".datetime-edit-field");

  for (let field of fields) {
    is(field.tabIndex, tabindex, "tabIndex in the inner textbox should be correct");
  }

}

function testTabindex(type) {
  let input1 = document.getElementById(type + "1");
  let input2 = document.getElementById(type + "2");
  let input3 = document.getElementById(type + "3");
  let input4 = document.getElementById(type + "4");

  input1.focus();
  is(document.activeElement, input1,
     "input element with tabindex=0 is focusable");

  // Time input does not include a Calendar button
  let fieldCount;
  if (type == "datetime-local") {
    fieldCount = 7;
  } else if (type == "date") {
    fieldCount = 4;
  } else {
    fieldCount = 3;
  };

  // Advance through inner fields.
  for (let i = 0; i < fieldCount - 1; ++i) {
    synthesizeKey("KEY_Tab");
    is(document.activeElement, input1,
      "input element with tabindex=0 is tabbable");
  }

  // Advance to next element
  synthesizeKey("KEY_Tab");
  is(document.activeElement, input3,
     "input element with tabindex=-1 is not tabbable");

  input2.focus();
  is(document.activeElement, input2,
     "input element with tabindex=-1 is still focusable");

  checkInnerTextboxTabindex(input1, 0);
  checkInnerTextboxTabindex(input2, -1);
  checkInnerTextboxTabindex(input3, 0);

  // Changing the tabindex attribute dynamically.
  input3.setAttribute("tabindex", "-1");

  synthesizeKey("KEY_Tab"); // need only one TAB since input2 is not tabbable

  isnot(document.activeElement, input3,
        "element with tabindex changed to -1 should not be tabbable");
  isnot(document.activeElement, input4,
        "disabled element should not be tabbable");

  checkInnerTextboxTabindex(input3, -1);
}

function test() {
  for (let inputType of ["time", "date", "datetime-local"]) {
    testTabindex(inputType);
  }
}

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