ladybird/Libraries/LibWeb/HTML/Parser/ListOfActiveFormattingElements.cpp
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

90 lines
2.4 KiB
C++

/*
* Copyright (c) 2020-2022, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibWeb/DOM/Element.h>
#include <LibWeb/HTML/Parser/ListOfActiveFormattingElements.h>
namespace Web::HTML {
ListOfActiveFormattingElements::~ListOfActiveFormattingElements() = default;
void ListOfActiveFormattingElements::visit_edges(JS::Cell::Visitor& visitor)
{
for (auto& entry : m_entries)
visitor.visit(entry.element);
}
void ListOfActiveFormattingElements::add(DOM::Element& element)
{
// FIXME: Implement the Noah's Ark clause https://html.spec.whatwg.org/multipage/parsing.html#push-onto-the-list-of-active-formatting-elements
m_entries.append({ element });
}
void ListOfActiveFormattingElements::add_marker()
{
m_entries.append({ nullptr });
}
bool ListOfActiveFormattingElements::contains(const DOM::Element& element) const
{
for (auto& entry : m_entries) {
if (entry.element.ptr() == &element)
return true;
}
return false;
}
DOM::Element* ListOfActiveFormattingElements::last_element_with_tag_name_before_marker(FlyString const& tag_name)
{
for (ssize_t i = m_entries.size() - 1; i >= 0; --i) {
auto& entry = m_entries[i];
if (entry.is_marker())
return nullptr;
if (entry.element->local_name() == tag_name)
return entry.element.ptr();
}
return nullptr;
}
void ListOfActiveFormattingElements::remove(DOM::Element& element)
{
m_entries.remove_first_matching([&](auto& entry) {
return entry.element.ptr() == &element;
});
}
void ListOfActiveFormattingElements::clear_up_to_the_last_marker()
{
while (!m_entries.is_empty()) {
auto entry = m_entries.take_last();
if (entry.is_marker())
break;
}
}
Optional<size_t> ListOfActiveFormattingElements::find_index(DOM::Element const& element) const
{
for (size_t i = 0; i < m_entries.size(); i++) {
if (m_entries[i].element.ptr() == &element)
return i;
}
return {};
}
void ListOfActiveFormattingElements::replace(DOM::Element& to_remove, DOM::Element& to_add)
{
for (size_t i = 0; i < m_entries.size(); i++) {
if (m_entries[i].element.ptr() == &to_remove)
m_entries[i].element = GC::make_root(to_add);
}
}
void ListOfActiveFormattingElements::insert_at(size_t index, DOM::Element& element)
{
m_entries.insert(index, { element });
}
}