ladybird/Userland/Libraries/LibWeb/HTML/SessionHistoryTraversalQueue.h
2024-05-30 09:29:20 -06:00

67 lines
2.2 KiB
C++

/*
* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Vector.h>
#include <LibCore/Timer.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/Cell.h>
#include <LibJS/Heap/CellAllocator.h>
#include <LibJS/Heap/GCPtr.h>
#include <LibJS/Heap/HeapFunction.h>
#include <LibJS/SafeFunction.h>
#include <LibWeb/Forward.h>
namespace Web::HTML {
struct SessionHistoryTraversalQueueEntry : public JS::Cell {
JS_CELL(SessionHistoryTraversalQueueEntry, JS::Cell);
JS_DECLARE_ALLOCATOR(SessionHistoryTraversalQueueEntry);
public:
static JS::NonnullGCPtr<SessionHistoryTraversalQueueEntry> create(JS::VM& vm, Function<void()> steps, JS::GCPtr<HTML::Navigable> target_navigable);
JS::GCPtr<HTML::Navigable> target_navigable() const { return m_target_navigable; }
void execute_steps() const { m_steps->function()(); }
private:
SessionHistoryTraversalQueueEntry(JS::NonnullGCPtr<JS::HeapFunction<void()>> steps, JS::GCPtr<HTML::Navigable> target_navigable)
: m_steps(steps)
, m_target_navigable(target_navigable)
{
}
virtual void visit_edges(Cell::Visitor&) override;
JS::NonnullGCPtr<JS::HeapFunction<void()>> m_steps;
JS::GCPtr<HTML::Navigable> m_target_navigable;
};
// https://html.spec.whatwg.org/multipage/document-sequences.html#tn-session-history-traversal-queue
class SessionHistoryTraversalQueue : public JS::Cell {
JS_CELL(SessionHistoryTraversalQueue, JS::Cell);
JS_DECLARE_ALLOCATOR(SessionHistoryTraversalQueue);
public:
SessionHistoryTraversalQueue();
void append(Function<void()> steps);
void append_sync(Function<void()> steps, JS::GCPtr<Navigable> target_navigable);
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#sync-navigations-jump-queue
JS::GCPtr<SessionHistoryTraversalQueueEntry> first_synchronous_navigation_steps_with_target_navigable_not_contained_in(Vector<JS::GCPtr<Navigable>> const& list);
private:
virtual void visit_edges(Cell::Visitor&) override;
Vector<JS::NonnullGCPtr<SessionHistoryTraversalQueueEntry>> m_queue;
RefPtr<Core::Timer> m_timer;
bool m_is_task_running { false };
};
}