<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Custom Elements: create an element for a token must increment and decrement document's throw-on-dynamic-markup-insertion counter</title>
<meta name="author" title="Ryosuke Niwa" href="mailto:[email protected]" />
<meta name="assert" content="Invoking document.open, document.write, document.writeln, and document.write must throw an exception when the HTML parser is creating a custom element for a token" />
<meta name="help" content="https://html.spec.whatwg.org/multipage/parsing.html#create-an-element-for-the-token" />
<meta name="help" content="https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#throw-on-dynamic-markup-insertion-counter" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="resources/custom-elements-helpers.js"></script>
</head>
<body>
<div id="log"></div>
<script>
<![CDATA[
async function custom_element_reactions_in_parser(test, code)
{
window.executed = false;
window.exception = null;
const content_window = await create_window_in_test_async(test, 'application/xml', `<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<script>
<![CDATA[
class CustomElement extends window.HTMLElement {
constructor() {
super();
let exception = null;
try {
${code}
} catch (error) {
exception = error;
}
top.executed = true;
top.exception = exception;
}
}
CustomElement.observedAttributes = ['title'];
customElements.define('some-element', CustomElement);
]]` + `>
</` + `script>
</head>
<body>
<some-element title="some title"></some-element>
</body>
</html>`);
let content_document;
try {
content_document = content_window.document;
} catch (error) { }
assert_true(executed, 'Must immediately process custom element reactions for setting attributes');
return {window: content_window, document: content_document, exception};
}
promise_test(async function () {
const result = await custom_element_reactions_in_parser(this, `document.open()`);
assert_throws_dom('InvalidStateError', result.window.DOMException, () => { throw result.exception; }, 'Must throw an InvalidStateError');
}, 'document.open() must throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
const result = await custom_element_reactions_in_parser(this, `document.open('text/html')`);
assert_throws_dom('InvalidStateError', result.window.DOMException, () => { throw result.exception; }, 'Must throw an InvalidStateError');
}, 'document.open("text/html") must throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
// https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-document-open-window
promise_test(async function () {
let load_promise = new Promise((resolve) => window.onmessage = (event) => resolve(event.data));
const url = top.location.href.substring(0, top.location.href.lastIndexOf('/')) + '/resources/navigation-destination.html';
const result = await custom_element_reactions_in_parser(this, `document.open('${url}', '_self', '')`);
assert_equals(result.exception, null);
assert_equals(await load_promise, 'didNavigate');
}, 'document.open(URL) must NOT throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
const result = await custom_element_reactions_in_parser(this, `document.close()`);
assert_throws_dom('InvalidStateError', result.window.DOMException, () => { throw result.exception; }, 'Must throw an InvalidStateError');
}, 'document.close() must throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
const result = await custom_element_reactions_in_parser(this, `document.write('<b>some text</b>')`);
assert_throws_dom('InvalidStateError', result.window.DOMException, () => { throw result.exception; }, 'Must throw an InvalidStateError');
assert_equals(result.document.querySelector('b'), null, 'Must not insert new content');
assert_false(result.document.body.innerHTML.includes('some text'), 'Must not insert new content');
}, 'document.write must throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
const result = await custom_element_reactions_in_parser(this, `document.writeln('<b>some text</b>')`);
assert_throws_dom('InvalidStateError', result.window.DOMException, () => { throw result.exception; }, 'Must throw an InvalidStateError');
assert_equals(result.document.querySelector('b'), null, 'Must not insert new content');
assert_false(result.document.body.innerHTML.includes('some text'), 'Must not insert new content');
}, 'document.writeln must throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
window.another_window = await create_window_in_test(this);
const result = await custom_element_reactions_in_parser(this, `top.another_window.document.open()`);
assert_equals(result.exception, null);
}, 'document.open() of another document must not throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
window.another_window = await create_window_in_test(this);
const result = await custom_element_reactions_in_parser(this, `top.another_window.document.open('text/html')`);
assert_equals(result.exception, null);
}, 'document.open("text/html") of another document must not throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
window.another_window = await create_window_in_test(this);
const result = await custom_element_reactions_in_parser(this, `top.another_window.document.close()`);
assert_equals(result.exception, null);
}, 'document.close() of another document must not throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
window.another_window = await create_window_in_test(this);
const result = await custom_element_reactions_in_parser(this, `top.another_window.document.write('<b>some text</b>')`);
assert_equals(result.exception, null);
assert_equals(another_window.document.querySelector('b').outerHTML, '<b>some text</b>');
}, 'document.write of another document must not throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
promise_test(async function () {
window.another_window = await create_window_in_test(this);
const result = await custom_element_reactions_in_parser(this, `top.another_window.document.writeln('<b>some text</b>')`);
assert_equals(result.exception, null);
assert_equals(another_window.document.querySelector('b').outerHTML, '<b>some text</b>');
}, 'document.writeln of another document must not throw an InvalidStateError when processing custom element reactions for a synchronous constructed custom element');
]]>
</script>
</body>
</html>
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