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LibWeb: Implement HTMLInputElement::suffering_from_being_missing

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This change implements all required “suffering from being missing”
constraints https://html.spec.whatwg.org/#suffering-from-being-missing
for HTMLInputElement.
This commit is contained in:
sideshowbarker 2025-02-22 22:28:02 +09:00 • committed by Tim Ledbetter
parent 7c34746571
commit 7da5869b14
Notes: github-actions[bot] 2025-02-26 04:14:30 +00:00
5 changed files with 305 additions and 13 deletions
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24
Libraries/LibWeb/HTML/HTMLInputElement.cpp
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@ -2526,8 +2526,7 @@ WebIDL::ExceptionOr<void> HTMLInputElement::step_up_or_down(bool is_down, WebIDL
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-checkvalidity
WebIDL::ExceptionOr<bool> HTMLInputElement::check_validity()
{
dbgln("(STUBBED) HTMLInputElement::check_validity(). Called on: {}", debug_description());
return true;
return check_validity_steps();
}
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#dom-cva-reportvalidity
@ -2874,6 +2873,8 @@ bool HTMLInputElement::is_focusable() const
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#suffering-from-being-missing
bool HTMLInputElement::suffering_from_being_missing() const
{
bool has_checkedness_false_for_all_elements_in_group = true;
bool has_required_element_in_group = false;
switch (type_state()) {
case TypeAttributeState::Checkbox:
// https://html.spec.whatwg.org/multipage/input.html#checkbox-state-(type%3Dcheckbox)%3Asuffering-from-being-missing
@ -2883,14 +2884,25 @@ bool HTMLInputElement::suffering_from_being_missing() const
break;
case TypeAttributeState::RadioButton:
// https://html.spec.whatwg.org/multipage/input.html#radio-button-state-(type%3Dradio)%3Asuffering-from-being-missing
// If an element in the radio button group is required, and all of the input elements in the radio button group have a checkedness that is false, then the element
// is suffering from being missing.
// FIXME: Implement this.
// If an element in the radio button group is required, and all of the input elements in the radio button group
// have a checkedness that is false, then the element is suffering from being missing.
root().for_each_in_inclusive_subtree_of_type<HTML::HTMLInputElement>([&](auto& element) {
if (is_in_same_radio_button_group(*this, element)) {
if (element.checked())
has_checkedness_false_for_all_elements_in_group = false;
if (has_attribute(HTML::AttributeNames::required))
has_required_element_in_group = true;
}
return TraversalDecision::Continue;
});
if (has_checkedness_false_for_all_elements_in_group && has_required_element_in_group)
return true;
break;
case TypeAttributeState::FileUpload:
// https://html.spec.whatwg.org/multipage/input.html#file-upload-state-(type%3Dfile)%3Asuffering-from-being-missing
// If the element is required and the list of selected files is empty, then the element is suffering from being missing.
// FIXME: Implement this.
if (has_attribute(HTML::AttributeNames::required) && const_cast<HTMLInputElement&>(*this).files()->length() == 0)
return true;
break;
default:
break;