f7f37eaa0f
The root of a node can never be null, as "the root of an object is itself, if its parent is null, or else it is the root of its parent." https://dom.spec.whatwg.org/#concept-tree-root
36 lines
865 B
C++
36 lines
865 B
C++
/*
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* Copyright (c) 2020, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibWeb/DOM/Event.h>
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#include <LibWeb/DOM/ShadowRoot.h>
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#include <LibWeb/Layout/BlockBox.h>
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namespace Web::DOM {
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ShadowRoot::ShadowRoot(Document& document, Element& host)
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: DocumentFragment(document)
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{
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set_host(host);
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}
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// https://dom.spec.whatwg.org/#ref-for-get-the-parent%E2%91%A6
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EventTarget* ShadowRoot::get_parent(const Event& event)
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{
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if (!event.composed()) {
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auto& events_first_invocation_target = verify_cast<Node>(*event.path().first().invocation_target);
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if (&events_first_invocation_target.root() == this)
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return nullptr;
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}
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return host();
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}
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RefPtr<Layout::Node> ShadowRoot::create_layout_node()
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{
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return adopt_ref(*new Layout::BlockBox(document(), this, CSS::ComputedValues {}));
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}
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}
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