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<!DOCTYPE html>
<title>Shadow DOM: Event path and Event.composedPath() (with related target)</title>
<meta name="author" title="Hayato Ito" href="mailto:hayato@google.com">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/shadow-dom.js"></script>

<div id="test1">
  <div id="target"></div>
  <div id="related"></div>
</div>

<script>
test(() => {
  let n = createTestTree(test1);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.related }));
  let path = ['target', 'test1'];
  assert_event_path_equals(log, [['target', 'target', 'related', path],
                                 ['test1', 'target', 'related', path]]);
}, 'Event path for an event with a relatedTarget. relatedTarget != target.');
</script>

<script>
test(() => {
  let n = createTestTree(test1);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.target }));
  let path = ['target', 'test1'];
  assert_event_path_equals(log, [['target', 'target', 'target', path],
                                 ['test1', 'target', 'target', path]]);
}, 'Event path for an event with a relatedTarget. Event should be dispatched even when target and relatedTarget are same.');
</script>

<div id="test2">
  <div id="host">
    <template id="sr" data-mode="open">
      <div id="target"></div>
      <div id="related"></div>
    </template>
  </div>
</div>

<script>
test(() => {
  let n = createTestTree(test2);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.related }));
  let path = ['target', 'sr'];
  assert_event_path_equals(log, [['target', 'target', 'related', path],
                                 ['sr', 'target', 'related', path]]);
}, 'Event path for an event with a relatedTarget. Event should stop at the shadow root');

test(() => {
  let n = createTestTree(test2);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.target }));
  let path = ['target', 'sr'];
  assert_event_path_equals(log, [['target', 'target', 'target', path],
                                 ['sr', 'target', 'target', path]]);
}, 'Event path for an event with a relatedTarget which is identical to target. Event should be dispatched and should stop at the shadow root.');
</script>

<div id="test3_1">
  <div id="host1">
    <template id="sr1" data-mode="open">
      <div id="target1"></div>
    </template>
  </div>
</div>

<div id="test3_2">
  <div id="host2">
    <template id="sr2" data-mode="open">
      <div id="target2"></div>
    </template>
  </div>
</div>

<script>
test(() => {
  let n1 = createTestTree(test3_1);
  let n2 = createTestTree(test3_2);
  let log = dispatchEventWithLog(n1, n1.target1, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n2.target2 }));
  let path = ['target1', 'sr1', 'host1', 'test3_1'];
  assert_event_path_equals(log, [['target1', 'target1', 'host2', path],
                                 ['sr1',     'target1', 'host2', path],
                                 ['host1',   'host1',   'host2', path],
                                 ['test3_1', 'host1',   'host2', path]]);
}, 'Event path for an event with a relatedTarget. target and relaterTarget do not share any shadow-including ancestor. target is in a shadow tree.');

test(() => {
  let n1 = createTestTree(test3_1);
  let n2 = createTestTree(test3_2);
  let log = dispatchEventWithLog(n1, n1.host1, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n2.target2 }));
  let path = ['host1', 'test3_1'];
  assert_event_path_equals(log, [['host1',   'host1',   'host2', path],
                                 ['test3_1', 'host1',   'host2', path]]);
}, 'Event path for an event with a relatedTarget. target and relaterTarget do not share any shadow-including ancestor. target is not in a shadow tree');
</script>

<div id="test4">
  <div id="host1">
    <template id="sr1" data-mode="open">
      <div id="host2">
        <template id="sr2" data-mode="open">
          <div id="target"></div>
        </template>
      </div>
      <div id="host3">
        <template id="sr3" data-mode="open">
          <div id="related"></div>
        </template>
      </div>
    </template>
  </div>
</div>

<script>
test(() => {
  let n = createTestTree(test4);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.related }));
  let path = ['target', 'sr2', 'host2', 'sr1'];
  assert_event_path_equals(log, [['target', 'target', 'host3', path],
                                 ['sr2', 'target', 'host3', path],
                                 ['host2', 'host2', 'host3', path],
                                 ['sr1', 'host2', 'host3', path]]);
}, 'Event path for an event with a relatedTarget. target and relaterTarget share the same shadow-including ancestor. Both are in shadow trees.');

test(() => {
  let n = createTestTree(test4);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.host1 }));
  let path = ['target', 'sr2', 'host2', 'sr1'];
  assert_event_path_equals(log, [['target', 'target', 'host1', path],
                                 ['sr2', 'target', 'host1', path],
                                 ['host2', 'host2', 'host1', path],
                                 ['sr1', 'host2', 'host1', path]]);
}, 'Event path for an event with a relatedTarget. relatedTarget is a shadow-including ancestor of target.');

test(() => {
  let n = createTestTree(test4);
  let log = dispatchEventWithLog(n, n.host1, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.target }));
  assert_event_path_equals(log, []);
}, 'Event path for an event with a relatedTarget. target is a shadow-including ancestor of relatedTarget.');
</script>

<div id="test5">
  <div id="host">
    <template id="sr" data-mode="open">
      <slot id="slot"></slot>
      <div id="related"></div>
    </template>
    <div id="target"></div>
  </div>
</div>

<script>
test(() => {
  let n = createTestTree(test5);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.related }));
  let path = ['target', 'slot', 'sr', 'host', 'test5'];
  assert_event_path_equals(log, [['target', 'target', 'host', path],
                                 ['slot', 'target', 'related', path],
                                 ['sr', 'target', 'related', path],
                                 ['host', 'target', 'host', path],
                                 ['test5', 'target', 'host', path]]);
}, 'Event path for an event with a relatedTarget. target is assigned to a slot.');

test(() => {
  let n = createTestTree(test5);
  let log = dispatchEventWithLog(n, n.related, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.target }));
  let path = ['related', 'sr', 'host', 'test5'];
  assert_event_path_equals(log, [['related', 'related', 'target', path],
                                 ['sr', 'related', 'target', path],
                                 ['host', 'host', 'target', path],
                                 ['test5', 'host', 'target', path]]);
}, 'Event path for an event with a relatedTarget. relatedTarget is assigned to a slot.');
</script>

<div id="test6">
  <div id="host0">
    <template id="sr0" data-mode="open">
      <div id="host1">
        <template id="sr1" data-mode="open">
          <div id="host2">
            <template id="sr2" data-mode="open">
              <slot id="slot2"></slot>
              <div id="related2"></div>
            </template>
            <div id="related1"></div>
            <div id="d1">
              <slot id="slot1"></slot>
            </div>
          </div>
        </template>
        <div id="host3">
          <template id="sr3" data-mode="open">
            <div id="host4">
              <template id="sr4" data-mode="open">
                <div id="host5">
                  <template id="sr5" data-mode="open">
                    <slot id="slot5"></slot>
                  </template>
                  <slot id="slot4"></slot>
                </div>
              </template>
              <div id="target"></div>
            </div>
          </template>
        </div>
      </div>
    </template>
  </div>
</div>

<script>
test(() => {
  let n = createTestTree(test6);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.related1 }));
  let path = ['target', 'slot4', 'slot5', 'sr5', 'host5', 'sr4', 'host4', 'sr3', 'host3', 'slot1', 'd1', 'slot2', 'sr2', 'host2', 'sr1', 'host1', 'sr0'];
  assert_event_path_equals(log, [['target',  'target', 'host1',    path],
                                 ['slot4',   'target', 'host1',    path],
                                 ['slot5',   'target', 'host1',    path],
                                 ['sr5',     'target', 'host1',    path],
                                 ['host5',   'target', 'host1',    path],
                                 ['sr4',     'target', 'host1',    path],
                                 ['host4',   'target', 'host1',    path],
                                 ['sr3',     'target', 'host1',    path],
                                 ['host3',   'host3',  'host1',    path],
                                 ['slot1',   'host3',  'related1', path],
                                 ['d1'   ,   'host3',  'related1', path],
                                 ['slot2',   'host3',  'related1', path],
                                 ['sr2',     'host3',  'related1', path],
                                 ['host2',   'host3',  'related1', path],
                                 ['sr1',     'host3',  'related1', path],
                                 ['host1',   'host3',  'host1',    path],
                                 ['sr0',     'host3',  'host1'   , path]]);
}, 'Event path for an event with a relatedTarget. Event should be dispatched at every slots.');

test(() => {
  let n = createTestTree(test6);
  let log = dispatchEventWithLog(n, n.target, new FocusEvent('my-focus', { bubbles: true, composed: true, relatedTarget: n.related2 }));
  let path = ['target', 'slot4', 'slot5', 'sr5', 'host5', 'sr4', 'host4', 'sr3', 'host3', 'slot1', 'd1', 'slot2', 'sr2', 'host2', 'sr1', 'host1', 'sr0'];
  assert_event_path_equals(log, [['target',  'target', 'host1',    path],
                                 ['slot4',   'target', 'host1',    path],
                                 ['slot5',   'target', 'host1',    path],
                                 ['sr5',     'target', 'host1',    path],
                                 ['host5',   'target', 'host1',    path],
                                 ['sr4',     'target', 'host1',    path],
                                 ['host4',   'target', 'host1',    path],
                                 ['sr3',     'target', 'host1',    path],
                                 ['host3',   'host3',  'host1',    path],
                                 ['slot1',   'host3',  'host2',    path],
                                 ['d1'   ,   'host3',  'host2',    path],
                                 ['slot2',   'host3',  'related2', path],
                                 ['sr2',     'host3',  'related2', path],
                                 ['host2',   'host3',  'host2',    path],
                                 ['sr1',     'host3',  'host2',    path],
                                 ['host1',   'host3',  'host1',    path],
                                 ['sr0',     'host3',  'host1'   , path]]);
}, 'Event path for an event with a relatedTarget. Event should be dispatched at every slots. relatedTarget should be correctly retargeted.');
</script>