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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. relaterTarget 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 }));
let path = ['host1', 'test4'];
assert_event_path_equals(log, [['host1', 'host1', 'host1', path],
['test4', 'host1', 'host1', path]]);
}, '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>
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