File: host-dom-001.html

package info (click to toggle)
thunderbird 1%3A140.4.0esr-1
  • links: PTS, VCS
  • area: main
  • in suites: forky
  • size: 4,609,432 kB
  • sloc: cpp: 7,672,442; javascript: 5,901,613; ansic: 3,898,954; python: 1,413,343; xml: 653,997; asm: 462,286; java: 180,927; sh: 113,489; makefile: 20,460; perl: 14,288; objc: 13,059; yacc: 4,583; pascal: 3,352; lex: 1,720; ruby: 1,222; exp: 762; sql: 715; awk: 580; php: 436; lisp: 430; sed: 70; csh: 10
file content (16 lines) | stat: -rw-r--r-- 807 bytes parent folder | download | duplicates (30) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
<!doctype html>
<title>CSS Test: :host in DOM APIs</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="help" href="https://drafts.csswg.org/css-scoping/#host-selector">
<div id="host"></div>
<script>
test(function() {
  let root = host.attachShadow({ mode: "open" });
  root.innerHTML = `<div></div>`;
  assert_false(host.matches(":host"), ":host shouldn't match from CSSOM from outside the shadow tree");
  assert_true(root.firstElementChild.matches(":host div"), ":host should match from within the shadow tree");
  assert_equals(root.querySelector(":host div"), root.firstElementChild, ":host should match from within the shadow tree");
})
</script>