ladybird/Libraries/LibWeb/DOM/Slottable.h
Shannon Booth f87041bf3a LibGC+Everywhere: Factor out a LibGC from LibJS
Resulting in a massive rename across almost everywhere! Alongside the
namespace change, we now have the following names:

 * JS::NonnullGCPtr -> GC::Ref
 * JS::GCPtr -> GC::Ptr
 * JS::HeapFunction -> GC::Function
 * JS::CellImpl -> GC::Cell
 * JS::Handle -> GC::Root
2024-11-15 14:49:20 +01:00

65 lines
2 KiB
C++

/*
* Copyright (c) 2023, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/String.h>
#include <AK/Variant.h>
#include <LibGC/Ptr.h>
#include <LibJS/Heap/Cell.h>
#include <LibWeb/Forward.h>
namespace Web::DOM {
// https://dom.spec.whatwg.org/#concept-slotable
using Slottable = Variant<GC::Ref<Element>, GC::Ref<Text>>;
// https://dom.spec.whatwg.org/#mixin-slotable
class SlottableMixin {
public:
virtual ~SlottableMixin();
String const& slottable_name() const { return m_name; } // Not called `name` to distinguish from `Element::name`.
void set_slottable_name(String name) { m_name = move(name); }
GC::Ptr<HTML::HTMLSlotElement> assigned_slot();
GC::Ptr<HTML::HTMLSlotElement> assigned_slot_internal() const { return m_assigned_slot; }
void set_assigned_slot(GC::Ptr<HTML::HTMLSlotElement> assigned_slot) { m_assigned_slot = assigned_slot; }
GC::Ptr<HTML::HTMLSlotElement> manual_slot_assignment() { return m_manual_slot_assignment; }
void set_manual_slot_assignment(GC::Ptr<HTML::HTMLSlotElement> manual_slot_assignment) { m_manual_slot_assignment = manual_slot_assignment; }
protected:
void visit_edges(JS::Cell::Visitor&);
private:
// https://dom.spec.whatwg.org/#slotable-name
String m_name;
// https://dom.spec.whatwg.org/#slotable-assigned-slot
GC::Ptr<HTML::HTMLSlotElement> m_assigned_slot;
// https://dom.spec.whatwg.org/#slottable-manual-slot-assignment
GC::Ptr<HTML::HTMLSlotElement> m_manual_slot_assignment;
};
enum class OpenFlag {
Set,
Unset,
};
GC::Ptr<HTML::HTMLSlotElement> assigned_slot_for_node(GC::Ref<Node>);
bool is_an_assigned_slottable(GC::Ref<Node>);
GC::Ptr<HTML::HTMLSlotElement> find_a_slot(Slottable const&, OpenFlag = OpenFlag::Unset);
Vector<Slottable> find_slottables(GC::Ref<HTML::HTMLSlotElement>);
void assign_slottables(GC::Ref<HTML::HTMLSlotElement>);
void assign_slottables_for_a_tree(GC::Ref<Node>);
void assign_a_slot(Slottable const&);
void signal_a_slot_change(GC::Ref<HTML::HTMLSlotElement>);
}