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LibWeb: Fix select element state update in three ways

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1. We were not propagating selectedness updates from option to select
   if the option was inside an optgroup.

2. When two or more options were selected, we were always favoring the
   last one in tree order, instead of the last one that got checked.

3. We were neglecting to return in the `display size is 1` case when
   all elements were disabled.

This was covered by some of the :has() selector tests. :^)
This commit is contained in:
Andreas Kling
2024-10-27 16:39:07 +01:00
committed by Andreas Kling
parent 6dad8ea584
commit 6c75a93ec0
4 changed files with 19 additions and 16 deletions
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4
Userland/Libraries/LibWeb/HTML/HTMLOptionElement.cpp
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@@ -138,8 +138,8 @@ int HTMLOptionElement::index() const
void HTMLOptionElement::ask_for_a_reset()
{
// If an option element in the list of options asks for a reset, then run that select element's selectedness setting algorithm.
if (is<HTMLSelectElement>(parent_element())) {
static_cast<HTMLSelectElement*>(parent())->update_selectedness();
if (auto* select = first_ancestor_of_type<HTMLSelectElement>()) {
select->update_selectedness(this);
}
}