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LibWeb: Implement (most of) the assigned slot/slottable lookup APIs

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This implements looking up a slottable's assigned slot, and a slot's
list of assigned slottables. For the latter, only unflattened lookups
are implemented so far.
This commit is contained in:
Timothy Flynn 2023-09-05 15:10:31 -04:00 • committed by Andreas Kling
parent b602ee7ddd
commit 683ce8e615
2 changed files with 33 additions and 6 deletions
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32
Userland/Libraries/LibWeb/HTML/HTMLSlotElement.cpp
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@ -62,17 +62,41 @@ void HTMLSlotElement::visit_edges(JS::Cell::Visitor& visitor)
}
// https://html.spec.whatwg.org/multipage/scripting.html#dom-slot-assignednodes
Vector<JS::Handle<DOM::Node>> HTMLSlotElement::assigned_nodes(AssignedNodesOptions)
Vector<JS::Handle<DOM::Node>> HTMLSlotElement::assigned_nodes(AssignedNodesOptions options)
{
// FIXME: 1. If options["flatten"] is false, then return this's assigned nodes.
// 1. If options["flatten"] is false, then return this's assigned nodes.
if (!options.flatten) {
Vector<JS::Handle<DOM::Node>> assigned_nodes;
assigned_nodes.ensure_capacity(assigned_nodes_internal().size());
for (auto const& node : assigned_nodes_internal()) {
node.visit([&](auto const& node) {
assigned_nodes.unchecked_append(*node);
});
}
return assigned_nodes;
}
// FIXME: 2. Return the result of finding flattened slottables with this.
return {};
}
// https://html.spec.whatwg.org/multipage/scripting.html#dom-slot-assignedelements
Vector<JS::Handle<DOM::Element>> HTMLSlotElement::assigned_elements(AssignedNodesOptions)
Vector<JS::Handle<DOM::Element>> HTMLSlotElement::assigned_elements(AssignedNodesOptions options)
{
// FIXME: 1. If options["flatten"] is false, then return this's assigned nodes, filtered to contain only Element nodes.
// 1. If options["flatten"] is false, then return this's assigned nodes, filtered to contain only Element nodes.
if (!options.flatten) {
Vector<JS::Handle<DOM::Element>> assigned_nodes;
for (auto const& node : assigned_nodes_internal()) {
if (auto const* element = node.get_pointer<JS::NonnullGCPtr<DOM::Element>>())
assigned_nodes.append(*element);
}
return assigned_nodes;
}
// FIXME: 2. Return the result of finding flattened slottables with this, filtered to contain only Element nodes.
return {};
}