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<!doctype html>
<title>Support for the :user-invalid pseudo-class</title>
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="help" href="https://drafts.csswg.org/selectors/#user-pseudos">
<link rel="help" href="https://html.spec.whatwg.org/#selector-user-invalid">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<style>
:is(input:not([type=submit], [type=reset]), textarea) {
border: 2px solid black;
}
:is(input:not([type=submit], [type=reset]), textarea):user-valid {
border-color: green;
}
:is(input:not([type=submit], [type=reset]), textarea):user-invalid {
border-color: red;
}
</style>
<input id="initially-invalid" type="email" value="foo">
<p>Test form interactions (reset / submit):</p>
<form id="form">
<input placeholder="Required field" required id="required-input"><br>
<textarea placeholder="Required field" required id="required-textarea"></textarea><br>
<input type="checkbox" required id="required-checkbox"><br>
<input type="submit" id="submit-button">
<input type="reset" id="reset-button">
</form>
<script>
promise_test(async () => {
const input = document.querySelector("#initially-invalid");
assert_false(input.validity.valid, "Should be invalid");
// The selector can't match because no interaction has happened.
assert_false(input.matches(':user-invalid'));
assert_false(input.matches(":user-valid"), "Initially does not match :user-valid");
assert_false(input.matches(":user-invalid"), "Initially does not match :user-invalid");
await test_driver.click(input);
input.blur();
assert_false(input.matches(":user-valid"), "No change happened, still does not match :user-valid");
assert_false(input.matches(":user-invalid"), "No change happened, still does not match :user-invalid");
input.value = "not an email";
assert_false(input.matches(":user-valid"), "Programatically set value, :user-valid should not match");
assert_false(input.matches(":user-invalid"), "Programatically set value, :user-invalid should not match");
input.value = "";
assert_false(input.matches(":user-valid"), "Programatically cleared value, :user-valid should not match");
assert_false(input.matches(":user-invalid"), "Programatically cleared value, :user-invalid should not match");
await test_driver.click(input);
await test_driver.send_keys(input, "not an email");
input.blur();
assert_true(input.matches(":user-invalid"), "Typed an invalid email, :user-invalid now matches");
assert_false(input.matches(":user-valid"), "Typed an invalid email, :user-valid does not match");
input.value = "";
await test_driver.click(input);
await test_driver.send_keys(input, "test@example.com");
input.blur();
assert_true(input.matches(":user-valid"), "Put a valid email, :user-valid now matches");
assert_false(input.matches(":user-invalid"), "Put an valid email, :user-invalid no longer matches");
}, ':user-invalid selector should respond to user action');
promise_test(async () => {
const form = document.querySelector("#form");
const requiredInput = document.querySelector("#required-input");
const requiredTextarea = document.querySelector("#required-textarea");
const requiredCheckbox = document.querySelector("#required-checkbox");
const submitButton = document.querySelector("#submit-button");
const resetButton = document.querySelector("#reset-button");
assert_false(requiredInput.validity.valid);
assert_false(requiredTextarea.validity.valid);
assert_false(requiredCheckbox.validity.valid);
// The selector can't match because no interaction has happened.
assert_false(requiredInput.matches(":user-valid"), "Initially does not match :user-valid");
assert_false(requiredInput.matches(":user-invalid"), "Initially does not match :user-invalid");
assert_false(requiredTextarea.matches(":user-valid"), "Initially does not match :user-valid");
assert_false(requiredTextarea.matches(":user-invalid"), "Initially does not match :user-invalid");
assert_false(requiredCheckbox.matches(":user-valid"), "Initially does not match :user-valid");
assert_false(requiredCheckbox.matches(":user-invalid"), "Initially does not match :user-invalid");
submitButton.click();
assert_true(requiredInput.matches(":user-invalid"), "Submitted the form, input is validated");
assert_false(requiredInput.matches(":user-valid"), "Submitted the form, input is validated");
assert_true(requiredTextarea.matches(":user-invalid"), "Submitted the form, textarea is validated");
assert_false(requiredTextarea.matches(":user-valid"), "Submitted the form, textarea is validated");
assert_true(requiredCheckbox.matches(":user-invalid"), "Submitted the form, checkbox is validated");
assert_false(requiredCheckbox.matches(":user-valid"), "Submitted the form, checkbox is validated");
resetButton.click();
assert_false(requiredInput.matches(":user-valid"), "Reset the form, user-interacted flag is reset");
assert_false(requiredInput.matches(":user-invalid"), "Reset the form, user-interacted flag is reset");
assert_false(requiredTextarea.matches(":user-valid"), "Reset the form, user-interacted flag is reset");
assert_false(requiredTextarea.matches(":user-invalid"), "Reset the form, user-interacted flag is reset");
assert_false(requiredCheckbox.matches(":user-valid"), "Reset the form, user-interacted flag is reset");
assert_false(requiredCheckbox.matches(":user-invalid"), "Reset the form, user-interacted flag is reset");
// Test programmatic form submission with constraint validation.
form.requestSubmit();
assert_true(requiredInput.matches(":user-invalid"), "Called form.requestSubmit(), input is validated");
assert_false(requiredInput.matches(":user-valid"), "Called form.requestSubmit(), input is validated");
assert_true(requiredTextarea.matches(":user-invalid"), "Called form.requestSubmit(), textarea is validated");
assert_false(requiredTextarea.matches(":user-valid"), "Called form.requestSubmit(), textarea is validated");
assert_true(requiredCheckbox.matches(":user-invalid"), "Called form.requestSubmit(), checkbox is validated");
assert_false(requiredCheckbox.matches(":user-valid"), "Called form.requestSubmit(), checkbox is validated");
}, ":user-invalid selector properly interacts with submit & reset buttons");
// historical: https://github.com/w3c/csswg-drafts/issues/1329
test(() => {
const input = document.querySelector('input');
// matches() will throw if the selector isn't suppported
assert_throws_dom("SyntaxError", () => input.matches(':user-error'));
}, ':user-error selector should not be supported');
['required-input', 'required-textarea'].forEach(elementId => {
promise_test(async () => {
const resetButton = document.getElementById('reset-button');
const element = document.getElementById(elementId);
element.value = '';
resetButton.click();
assert_false(element.matches(':user-invalid'),
'Element should not match :user-invalid at the start of the test.');
assert_false(element.matches(':user-valid'),
'Element should not match :user-valid at the start of the test.');
const backspace = '\uE003';
element.focus();
await test_driver.send_keys(element, 'a');
await test_driver.send_keys(element, backspace);
assert_false(element.matches(':user-invalid'),
'Element should not match :user-invalid before blurring.');
assert_false(element.matches(':user-valid'),
'Element should not match :user-valid before blurring.');
element.blur();
assert_true(element.matches(':user-invalid'),
'Element should match :user-invalid after typing text and deleting it.');
assert_false(element.matches(':user-valid'),
'Element should not match :user-valid after the test.');
}, `${elementId}: A required input or textarea should match :user-invalid if a user types into it and then clears it before blurring.`);
});
promise_test(async () => {
const checkbox = document.getElementById('required-checkbox');
const resetButton = document.getElementById('reset-button');
resetButton.click();
assert_false(checkbox.matches(':user-invalid'),
'Checkbox should not match :user-invalid at the start of the test.');
assert_false(checkbox.checked,
'Checkbox should not be checked at the start of the test.');
checkbox.checked = true;
assert_false(checkbox.matches(':user-invalid'),
'Checkbox should not match :user-invalid after programatically changing value.');
checkbox.checked = false;
assert_false(checkbox.matches(':user-invalid'),
'Checkbox should not match :user-invalid after programatically changing value.');
await test_driver.click(checkbox);
assert_true(checkbox.checked, 'Checkbox should be checked after clicking once.');
assert_false(checkbox.matches(':user-invalid'),
'Checkbox should not match :user-invalid after checking it.');
await test_driver.click(checkbox);
assert_false(checkbox.checked, 'Checkbox should not be checked after clicking twice.');
assert_true(checkbox.matches(':user-invalid'),
'Checkbox should match :user-invalid after clicking twice.');
}, 'A required checkbox should match :user-invalid if the user unchecks it and blurs.');
</script>
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