<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="resources/shadow-dom.js"></script>
<script src="resources/focus-utils.js"></script>
<div id="log"></div>
<p>
  document tree: [i0 -> [x-foo]]<br>
  x-foo's shadow tree: [j1 -> [s1] -> [s2] -> j2 ->[x-bar]]<br>
  x-bar's shadow tree: [k1 -> [s3]]<br>
  slot #s1: [i1 -> i2]<br>
  slot #s2: [i3]<br>
  slot #s3: [[s4]]<br>
  slot #s4: [i4 -> i5]<br><br>
  <b>v1 ideal nav forward:  [i0 -> j1 -> i1 -> i2 -> i3 -> j2 -> x-bar -> k1 -> i4 -> i5]</b><br>
</p>

<input id="i0" tabindex=0 value="i0">
<div id="x-foo">
  <input id="i2" slot="s1" tabindex=2 value="i2">
  <input id="i1" slot="s1" tabindex=1 value="i1">
  <input id="i3" slot="s2" tabindex=3 value="i3">
  <input id="i4" slot="s4" tabindex=4 value="i4">
  <input id="i5" slot="s4" tabindex=5 value="i5">
  <template data-mode="open">
    <div id="x-bar" tabindex=5>
      <slot id="s4" name="s4" slot="s3"></slot>
      <template data-mode="open">
        <slot id="s3" name="s3" tabindex=2></slot>
        <input id="k1" tabindex=1 value="k1">
      </template>
    </div>
    <input id="j1" tabindex=1 value="j1">
    <slot id="s2" name="s2" tabindex=3></slot>
    <slot id="s1" name="s1" tabindex=2></slot>
    <input id="j2" tabindex=4 value="j2">
  </template>
</div>

<script>
'use strict';

promise_test(async () => {
    let xfoo = document.getElementById('x-foo');
    convertTemplatesToShadowRootsWithin(xfoo);

    let elements = [
        'i0',
        'x-foo/j1',
        'i1',
        'i2',
        'i3',
        'x-foo/j2',
        'x-foo/x-bar',
        'x-foo/x-bar/k1',
        'i4',
        'i5'
    ];

    await assert_focus_navigation_forward(elements);
    elements.reverse();
    await assert_focus_navigation_backward(elements);
}, 'Focus should cover assigned elements of an assigned slot, as well as elements that are directly assigned to a slot.');
</script>
