focus-navigation-slot-fallback.html

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This WPT test may be referenced by the following Test IDs:
- /shadow-dom/focus-navigation/focus-navigation-slot-fallback.html - WPT Dashboard Interop Dashboard

<!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 -> j2 -> [s1]]<br>

  <b>slot #s1: [k1 -> [x-bar] -> k0 -> [s2] -> [s3]]</b><br>

  x-bar's shadow tree: [m1 -> m2]<br>

  slot #s2: [i1 -> i2]<br>

  <b>slot #s3: [l1]<b><br><br>

  <b>v1 ideal nav forward:  [i0 -> j1 -> j2 -> k1 -> x-bar -> m1 -> m2 -> k0 -> i1 -> i2 -> l1]</b><br>

</p>

<input id='i0' tabindex=0 value='i0'>

<div id='x-foo'>

  <input id='i2' slot='s2' tabindex=2 value='i2'>

  <input id='i1' slot='s2' tabindex=1 value='i1'>

  <template data-mode='open'>

    <input id='j1' tabindex=1 value='j1'>

    <slot id='s1' name='s1'> <!-- This slot does not have any assigned elements -->

      <input id='k0' tabindex=0 value='k0'>

      <input id='k1' tabindex=1 value='k1'>

      <slot id='s2' name='s2'>

        <input id='should-be-ignored'>

      </slot>

      <slot id='s3' name='s3'> <!-- This slot does not have any assigned elements -->

        <input id='l1' value='l1'>

      </slot>

      <div id='x-bar' tabindex=2>

        <template data-mode='open'>

          <input id='m2' value='m2' tabindex=2>

          <input id='m1' value='m1' tabindex=1>

        </template>

      </div>

    </slot>

    <input id='j2' tabindex=2 value='j2'>

  </template>

</div>

<script>

'use strict';

promise_test(async () => {

  let xfoo = document.getElementById('x-foo');

  convertTemplatesToShadowRootsWithin(xfoo);

  let elements = [

      'i0',

      'x-foo/j1',

      'x-foo/j2',

      'x-foo/k1',

      'x-foo/x-bar',

      'x-foo/x-bar/m1',

      'x-foo/x-bar/m2',

      'x-foo/k0',

      'i1',

      'i2',

      'x-foo/l1'

];

    await assert_focus_navigation_bidirectional(elements);

}, 'Focus should jump to fallback elements when a slot does not have any assigned nodes.');

</script>