mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-04-30 00:09:01 +00:00
adc25af8e2
We achieve this by keeping track of the number of HTMLSlotElements inside each ShadowRoot (do via ad-hoc insertion and removal steps.) This allows slottables assignment to skip over entire shadow roots when we know they have no slots anyway. Massive speedup on https://wpt.fyi/ which no longer takes minutes/hours to load, but instead a "mere" 19 seconds. :^)
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
/*
|
|
* Copyright (c) 2020, the SerenityOS developers.
|
|
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Variant.h>
|
|
#include <AK/Vector.h>
|
|
#include <LibGC/Root.h>
|
|
#include <LibWeb/DOM/Slot.h>
|
|
#include <LibWeb/DOM/Slottable.h>
|
|
#include <LibWeb/HTML/HTMLElement.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
struct AssignedNodesOptions {
|
|
bool flatten { false };
|
|
};
|
|
|
|
class HTMLSlotElement final
|
|
: public HTMLElement
|
|
, public DOM::Slot {
|
|
WEB_PLATFORM_OBJECT(HTMLSlotElement, HTMLElement);
|
|
GC_DECLARE_ALLOCATOR(HTMLSlotElement);
|
|
|
|
public:
|
|
virtual ~HTMLSlotElement() override;
|
|
|
|
Vector<GC::Root<DOM::Node>> assigned_nodes(AssignedNodesOptions options = {}) const;
|
|
Vector<GC::Root<DOM::Element>> assigned_elements(AssignedNodesOptions options = {}) const;
|
|
|
|
using SlottableHandle = Variant<GC::Root<DOM::Element>, GC::Root<DOM::Text>>;
|
|
void assign(Vector<SlottableHandle> nodes);
|
|
|
|
ReadonlySpan<DOM::Slottable> manually_assigned_nodes() const { return m_manually_assigned_nodes; }
|
|
|
|
private:
|
|
HTMLSlotElement(DOM::Document&, DOM::QualifiedName);
|
|
|
|
virtual bool is_html_slot_element() const override { return true; }
|
|
|
|
virtual void initialize(JS::Realm&) override;
|
|
virtual void visit_edges(JS::Cell::Visitor&) override;
|
|
|
|
virtual void inserted() override;
|
|
virtual void removed_from(Node* old_parent, Node& old_root) override;
|
|
|
|
virtual void attribute_changed(FlyString const& name, Optional<String> const& old_value, Optional<String> const& value, Optional<FlyString> const& namespace_) override;
|
|
|
|
// https://html.spec.whatwg.org/multipage/scripting.html#manually-assigned-nodes
|
|
Vector<DOM::Slottable> m_manually_assigned_nodes;
|
|
};
|
|
|
|
}
|
|
|
|
namespace Web::DOM {
|
|
|
|
template<>
|
|
inline bool Node::fast_is<HTML::HTMLSlotElement>() const { return is_html_slot_element(); }
|
|
|
|
}
|