ladybird/Libraries/LibWeb/DOM/ParentNode.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

89 lines
2.4 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibWeb/DOM/Node.h>
namespace Web::DOM {
class ParentNode : public Node {
WEB_PLATFORM_OBJECT(ParentNode, Node);
GC_DECLARE_ALLOCATOR(ParentNode);
public:
template<typename F>
void for_each_child(F) const;
template<typename F>
void for_each_child(F);
GC::Ptr<Element> first_element_child();
GC::Ptr<Element> last_element_child();
u32 child_element_count() const;
WebIDL::ExceptionOr<GC::Ptr<Element>> query_selector(StringView);
WebIDL::ExceptionOr<GC::Ref<NodeList>> query_selector_all(StringView);
GC::Ref<HTMLCollection> children();
GC::Ref<HTMLCollection> get_elements_by_tag_name(FlyString const&);
GC::Ref<HTMLCollection> get_elements_by_tag_name_ns(Optional<FlyString>, FlyString const&);
WebIDL::ExceptionOr<void> prepend(Vector<Variant<GC::Root<Node>, String>> const& nodes);
WebIDL::ExceptionOr<void> append(Vector<Variant<GC::Root<Node>, String>> const& nodes);
WebIDL::ExceptionOr<void> replace_children(Vector<Variant<GC::Root<Node>, String>> const& nodes);
GC::Ref<HTMLCollection> get_elements_by_class_name(StringView);
protected:
ParentNode(JS::Realm& realm, Document& document, NodeType type)
: Node(realm, document, type)
{
}
ParentNode(Document& document, NodeType type)
: Node(document, type)
{
}
virtual void visit_edges(Cell::Visitor&) override;
private:
GC::Ptr<HTMLCollection> m_children;
};
template<>
inline bool Node::fast_is<ParentNode>() const { return is_parent_node(); }
template<typename U>
inline U* Node::shadow_including_first_ancestor_of_type()
{
for (auto* ancestor = parent_or_shadow_host(); ancestor; ancestor = ancestor->parent_or_shadow_host()) {
if (is<U>(*ancestor))
return &verify_cast<U>(*ancestor);
}
return nullptr;
}
template<typename Callback>
inline void ParentNode::for_each_child(Callback callback) const
{
for (auto* node = first_child(); node; node = node->next_sibling()) {
if (callback(*node) == IterationDecision::Break)
return;
}
}
template<typename Callback>
inline void ParentNode::for_each_child(Callback callback)
{
for (auto* node = first_child(); node; node = node->next_sibling()) {
if (callback(*node) == IterationDecision::Break)
return;
}
}
}