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LibWeb: Make Element::set_shadow_root() disconnect any previous root

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This commit is contained in:
Andreas Kling 2022-03-16 00:26:40 +01:00
parent d2a99eded7
commit b1096c2ae4
4 changed files with 7 additions and 4 deletions
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2
Userland/Libraries/LibWeb/DOM/DocumentFragment.h
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@ -29,7 +29,7 @@ public:
Element* host() { return m_host; }
Element const* host() const { return m_host; }
void set_host(Element& host) { m_host = host; }
void set_host(Element* host) { m_host = host; }
private:
// https://dom.spec.whatwg.org/#concept-documentfragment-host

5
Userland/Libraries/LibWeb/DOM/Element.cpp
View file

@ -382,8 +382,11 @@ void Element::set_shadow_root(RefPtr<ShadowRoot> shadow_root)
{
if (m_shadow_root == shadow_root)
return;
if (m_shadow_root)
m_shadow_root->set_host(nullptr);
m_shadow_root = move(shadow_root);
m_shadow_root->set_host(*this);
if (m_shadow_root)
m_shadow_root->set_host(this);
invalidate_style();
}

2
Userland/Libraries/LibWeb/DOM/ShadowRoot.cpp
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@ -15,7 +15,7 @@ namespace Web::DOM {
ShadowRoot::ShadowRoot(Document& document, Element& host)
: DocumentFragment(document)
{
set_host(host);
set_host(&host);
}
// https://dom.spec.whatwg.org/#ref-for-get-the-parent%E2%91%A6