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LibWeb: Add a helper function for checking if element is a shadow host

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This commit is contained in:
Karol Kosek 2023-01-28 20:33:36 +01:00 • committed by Andreas Kling
parent 2cc108a15e
commit 01e2cc5330
3 changed files with 9 additions and 1 deletions
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7
Userland/Libraries/LibWeb/DOM/Element.cpp
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@ -537,6 +537,13 @@ JS::NonnullGCPtr<HTMLCollection> Element::get_elements_by_class_name(DeprecatedF
});
}
// https://dom.spec.whatwg.org/#element-shadow-host
bool Element::is_shadow_host() const
{
// An element is a shadow host if its shadow root is non-null.
return m_shadow_root != nullptr;
}
void Element::set_shadow_root(JS::GCPtr<ShadowRoot> shadow_root)
{
if (m_shadow_root == shadow_root)

1
Userland/Libraries/LibWeb/DOM/Element.h
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@ -131,6 +131,7 @@ public:
JS::NonnullGCPtr<HTMLCollection> get_elements_by_class_name(DeprecatedFlyString const&);
bool is_shadow_host() const;
ShadowRoot* shadow_root_internal() { return m_shadow_root.ptr(); }
ShadowRoot const* shadow_root_internal() const { return m_shadow_root.ptr(); }
void set_shadow_root(JS::GCPtr<ShadowRoot>);

2
Userland/Libraries/LibWeb/HTML/Focus.cpp
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@ -210,7 +210,7 @@ void run_unfocusing_steps(DOM::Node* old_focus_target)
// with the focusing steps.
auto is_shadow_host = [](DOM::Node* node) {
return is<DOM::Element>(node) && static_cast<DOM::Element*>(node)->shadow_root() != nullptr;
return is<DOM::Element>(node) && static_cast<DOM::Element*>(node)->is_shadow_host();
};
// 1. If old focus target is a shadow host whose shadow root's delegates focus is true, and old focus target's