ladybird/Libraries/LibWeb/HTML/BrowsingContextGroup.cpp
Andreas Kling 164ed80244 Meta: Enable exit-time destructor warnings for libraries
Enable -Wexit-time-destructors for all in-tree library targets and
update process-lifetime library statics so they no longer register
exit-time destructors. Long-lived caches, lookup tables, singleton
registries, and generated constants now use NeverDestroyed or leaked
references where the data is intended to live until process exit.

Update LibWeb, LibLine, and the binding generators so regenerated
sources follow the same rule instead of reintroducing destructed
statics.
2026-06-04 19:20:49 +02:00

70 lines
2.3 KiB
C++

/*
* Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/NeverDestroyed.h>
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/HTML/BrowsingContext.h>
#include <LibWeb/HTML/BrowsingContextGroup.h>
#include <LibWeb/Page/Page.h>
namespace Web::HTML {
GC_DEFINE_ALLOCATOR(BrowsingContextGroup);
// https://html.spec.whatwg.org/multipage/browsers.html#browsing-context-group-set
static HashTable<GC::Ref<BrowsingContextGroup>>& user_agent_browsing_context_group_set()
{
static NeverDestroyed<HashTable<GC::Ref<BrowsingContextGroup>>> set;
return *set;
}
BrowsingContextGroup::BrowsingContextGroup(GC::Ref<Web::Page> page)
: m_page(page)
{
user_agent_browsing_context_group_set().set(*this);
}
void BrowsingContextGroup::finalize()
{
Base::finalize();
user_agent_browsing_context_group_set().remove(*this);
}
void BrowsingContextGroup::visit_edges(Cell::Visitor& visitor)
{
Base::visit_edges(visitor);
visitor.visit(m_page);
visitor.visit(m_browsing_context_set);
}
// https://html.spec.whatwg.org/multipage/document-sequences.html#creating-a-new-browsing-context-group-and-document
BrowsingContextGroup::BrowsingContextGroupAndDocument BrowsingContextGroup::create_a_new_browsing_context_group_and_document(GC::Ref<Page> page)
{
// 1. Let group be a new browsing context group.
// 2. Append group to the user agent's browsing context group set.
auto group = Bindings::main_thread_vm().heap().allocate<BrowsingContextGroup>(page);
// 3. Let browsingContext and document be the result of creating a new browsing context and document with null, null, and group.
auto [browsing_context, document] = BrowsingContext::create_a_new_browsing_context_and_document(page, nullptr, nullptr, group);
// 4. Append browsingContext to group.
group->append(browsing_context);
// 5. Return group and document.
return BrowsingContextGroupAndDocument { group, document };
}
// https://html.spec.whatwg.org/multipage/browsers.html#bcg-append
void BrowsingContextGroup::append(BrowsingContext& browsing_context)
{
// 1. Append browsingContext to group's browsing context set.
m_browsing_context_set.set(browsing_context);
// 2. Set browsingContext's group to group.
browsing_context.set_group(this);
}
}