mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-11-03 23:00:58 +00:00
83c5ff57d8
(And BrowsingContextGroup had to come along for the ride as well.) This solves a number of nasty reference cycles between browsing contexts, history items, and their documents.
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
/*
|
|
* Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibWeb/Bindings/MainThreadVM.h>
|
|
#include <LibWeb/HTML/BrowsingContext.h>
|
|
#include <LibWeb/HTML/BrowsingContextGroup.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
// https://html.spec.whatwg.org/multipage/browsers.html#browsing-context-group-set
|
|
static HashTable<BrowsingContextGroup*>& user_agent_browsing_context_group_set()
|
|
{
|
|
static HashTable<BrowsingContextGroup*> set;
|
|
return set;
|
|
}
|
|
|
|
BrowsingContextGroup::BrowsingContextGroup(Web::Page& page)
|
|
: m_page(page)
|
|
{
|
|
user_agent_browsing_context_group_set().set(this);
|
|
}
|
|
|
|
BrowsingContextGroup::~BrowsingContextGroup()
|
|
{
|
|
user_agent_browsing_context_group_set().remove(this);
|
|
}
|
|
|
|
void BrowsingContextGroup::visit_edges(Cell::Visitor& visitor)
|
|
{
|
|
Base::visit_edges(visitor);
|
|
for (auto& context : m_browsing_context_set)
|
|
visitor.visit(context);
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/multipage/browsers.html#creating-a-new-browsing-context-group
|
|
JS::NonnullGCPtr<BrowsingContextGroup> BrowsingContextGroup::create_a_new_browsing_context_group(Web::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_without_realm<BrowsingContextGroup>(page);
|
|
|
|
// 3. Let browsingContext be the result of creating a new browsing context with null, null, and group.
|
|
auto browsing_context = BrowsingContext::create_a_new_browsing_context(page, nullptr, nullptr, *group);
|
|
|
|
// 4. Append browsingContext to group.
|
|
group->append(move(browsing_context));
|
|
|
|
// 5. Return group.
|
|
return *group;
|
|
}
|
|
|
|
// https://html.spec.whatwg.org/multipage/browsers.html#bcg-append
|
|
void BrowsingContextGroup::append(BrowsingContext& browsing_context)
|
|
{
|
|
VERIFY(browsing_context.is_top_level());
|
|
|
|
// 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);
|
|
}
|
|
|
|
}
|