ladybird/Userland/Libraries/LibWeb/HTML/SessionHistoryTraversalQueue.h
Aliaksandr Kalenik 9b16e5373d LibWeb: Process session history queue after initial iframe navigation
This is not in the spec, but we need to make sure that "apply the
history step" for initial navigation to about:blank in iframe is
applied before subsequent navigations. Otherwise, "set ongoing
navigation" call during "about:blank" traversal might abort subsequent
ongoing navigation which is not expected to happen.
2023-09-16 16:53:32 +02:00

47 lines
1 KiB
C++

/*
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibCore/Timer.h>
namespace Web::HTML {
// https://html.spec.whatwg.org/multipage/document-sequences.html#tn-session-history-traversal-queue
class SessionHistoryTraversalQueue {
public:
SessionHistoryTraversalQueue()
{
m_timer = Core::Timer::create_single_shot(0, [this] {
while (m_queue.size() > 0) {
auto steps = m_queue.take_first();
steps();
}
}).release_value_but_fixme_should_propagate_errors();
}
void append(JS::SafeFunction<void()> steps)
{
m_queue.append(move(steps));
if (!m_timer->is_active()) {
m_timer->start();
}
}
void process()
{
while (m_queue.size() > 0) {
auto steps = m_queue.take_first();
steps();
}
}
private:
Vector<JS::SafeFunction<void()>> m_queue;
RefPtr<Core::Timer> m_timer;
};
}