ladybird/Libraries/LibWeb/HTML/EventLoop/TaskQueue.h

52 lines
1.2 KiB
C++

/*
* Copyright (c) 2021-2024, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Queue.h>
#include <LibJS/Heap/Cell.h>
#include <LibWeb/HTML/EventLoop/Task.h>
namespace Web::HTML {
class TaskQueue : public JS::Cell {
JS_CELL(TaskQueue, JS::Cell);
JS_DECLARE_ALLOCATOR(TaskQueue);
public:
explicit TaskQueue(HTML::EventLoop&);
virtual ~TaskQueue() override;
bool is_empty() const { return m_tasks.is_empty(); }
bool has_runnable_tasks() const;
bool has_rendering_tasks() const;
void add(JS::NonnullGCPtr<HTML::Task>);
JS::GCPtr<HTML::Task> take_first_runnable();
void enqueue(JS::NonnullGCPtr<HTML::Task> task) { add(task); }
JS::GCPtr<HTML::Task> dequeue()
{
if (m_tasks.is_empty())
return {};
return m_tasks.take_first();
}
void remove_tasks_matching(Function<bool(HTML::Task const&)>);
JS::MarkedVector<JS::NonnullGCPtr<Task>> take_tasks_matching(Function<bool(HTML::Task const&)>);
Task const* last_added_task() const;
private:
virtual void visit_edges(Visitor&) override;
JS::NonnullGCPtr<HTML::EventLoop> m_event_loop;
Vector<JS::NonnullGCPtr<HTML::Task>> m_tasks;
};
}