blob: ec272dcecdc9722fd56388c333384de272fc1aa0 [file] [log] [blame]
<!DOCTYPE html>
<script src='../resources/testharness.js'></script>
<script src='../resources/testharnessreport.js'></script>
<script src='resources/shadow-dom.js'></script>
<div id='d1'>
<template data-mode='open' data-expose-as='d1_shadow'>
<div id='d1-d1'>
<template data-mode='open' data-expose-as='d1_d1_shadow'>
<slot name='d1-d1-s1'></slot>
</template>
<slot name='d1-s1' slot='d1-d1-s1'></slot>
</div>
</template>
<div id='d2' slot='d1-s1'></div>
</div>
<script>
'use strict';
convertTemplatesToShadowRootsWithin(d1);
removeWhiteSpaceOnlyTextNodes(d1);
async_test((test) => {
var count_for_d1_s1 = 0;
var count_for_d1_d1_s1 = 0;
const d1_s1 = d1_shadow.querySelector('slot');
const d1_d1_s1 = d1_d1_shadow.querySelector('slot');
assert_array_equals(d1_s1.assignedNodes(), [d2]);
assert_array_equals(d1_s1.assignedNodes({'flatten': true}), [d2]);
assert_array_equals(d1_d1_s1.assignedNodes(), [d1_s1]);
assert_array_equals(d1_d1_s1.assignedNodes({'flatten': true}), [d2]);
d1_s1.addEventListener('slotchange', (e) => {
test.step(() => {
count_for_d1_s1++;
if (count_for_d1_s1 == 1) {
assert_equals(e.target, d1_s1);
assert_array_equals(d1_s1.assignedNodes(), [d2, d3]);
assert_array_equals(d1_s1.assignedNodes({'flatten': true}), [d2, d3]);
} else if (count_for_d1_s1 == 2) {
assert_equals(e.target, d1_s1);
assert_array_equals(d1_s1.assignedNodes(), [d2]);
assert_array_equals(d1_s1.assignedNodes({'flatten': true}), [d2]);
test.done();
}
});
});
d1_d1_s1.addEventListener('slotchange', (e) => {
test.step(() => {
count_for_d1_d1_s1++;
if (count_for_d1_d1_s1 == 1) {
assert_equals(e.target, d1_d1_s1);
assert_array_equals(d1_d1_s1.assignedNodes(), [d1_s1]);
assert_array_equals(d1_d1_s1.assignedNodes({'flatten': true}), [d2, d3]);
} else if (count_for_d1_d1_s1 == 2){
assert_equals(e.target, d1_d1_s1);
assert_array_equals(d1_d1_s1.assignedNodes(), [d1_s1]);
assert_array_equals(d1_d1_s1.assignedNodes({'flatten': true}), [d2]);
test.done();
}
});
});
const d3 = document.createElement('div');
d3.setAttribute('id', 'd3');
d3.setAttribute('slot', 'd1-s1');
d1.appendChild(d3);
// Different microtask.
setTimeout(function(){
d3.remove();
}, 0);
}, "slotchange event should be dispatched for a slot at most once per microtask.");
</script>