<!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: [j5 -> [x-bar] -> j6]<br>
  x-bar's shadow tree: [k1 -> k0 -> [s2]]<br>
  slot #s2: [j1 -> j2 -> j3 -> j4 -> [s1] -> j0]<br><br>
  slot #s1: [i1 -> i2]<br>
  <b>v1 ideal nav forward:  [i0 -> j5 -> xbar -> k1 -> k0 -> j1 -> j2 -> j3 -> j4 -> i1 -> i2 -> j0 -> j6]</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">
  <template data-mode="open">
    <div id="x-bar" tabindex=4>
      <input id="j1" slot="s2" tabindex=1 value="j1">
      <slot id="s1" name="s1" slot="s2"></slot>
      <input id="j0" slot="s2" tabindex=0 value="j0">
      <input id="j3" slot="s2" tabindex=2 value="j3">
      <div id="j4" slot="s2" tabindex=3>
        <input id="j2" tabindex=1 value="j2">
      </div>
      <template data-mode="open">
        <input id="k0" tabindex=0 value="k0">
        <slot id="s2" name="s2"></slot>
        <input id="k1" tabindex=1 value="k1">
      </template>
    </div>
    <input id="j6" tabindex=4 value="j6">
    <input id="j5" tabindex=3 value="j5">
  </template>
</div>

<script>
'use strict';

promise_test(async () => {
    let xfoo = document.getElementById('x-foo');
    convertTemplatesToShadowRootsWithin(xfoo);
    let sr = xfoo.shadowRoot;
    let xbar = sr.querySelector('div');
    convertTemplatesToShadowRootsWithin(xbar);

    let elements = [
        'i0',
        'x-foo/j5',
        'x-foo/x-bar',
        'x-foo/x-bar/k1',
        'x-foo/x-bar/k0',
        'x-foo/j1',
        'x-foo/j2',
        'x-foo/j3',
        'x-foo/j4',
        'i1',
        'i2',
        'x-foo/j0',
        'x-foo/j6'
    ];

    await assert_focus_navigation_forward(elements);
    elements.reverse();
    await assert_focus_navigation_backward(elements);
}, 'Focus controller should treat slots as a focus scope.');
</script>
