ladybird/Userland/Libraries/LibWeb/HTML/EventLoop/Task.h
Andreas Kling d505192014 LibWeb: Use JS::SafeFunction in the HTML task queues
This means that HTML tasks automatically protect anything in their
capture lists, and we no longer need to jump through hoops with
JS::Handle etc.
2022-09-24 12:23:29 +02:00

56 lines
1.2 KiB
C++

/*
* Copyright (c) 2021-2022, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Function.h>
#include <AK/NonnullOwnPtr.h>
#include <AK/RefPtr.h>
#include <LibJS/Heap/Handle.h>
#include <LibJS/SafeFunction.h>
#include <LibWeb/Forward.h>
namespace Web::HTML {
class Task {
public:
// https://html.spec.whatwg.org/multipage/webappapis.html#generic-task-sources
enum class Source {
Unspecified,
DOMManipulation,
UserInteraction,
Networking,
HistoryTraversal,
IdleTask,
PostedMessage,
Microtask,
TimerTask,
JavaScriptEngine,
};
static NonnullOwnPtr<Task> create(Source source, DOM::Document* document, JS::SafeFunction<void()> steps)
{
return adopt_own(*new Task(source, document, move(steps)));
}
~Task();
Source source() const { return m_source; }
void execute();
DOM::Document* document();
DOM::Document const* document() const;
bool is_runnable() const;
private:
Task(Source, DOM::Document*, JS::SafeFunction<void()> steps);
Source m_source { Source::Unspecified };
JS::SafeFunction<void()> m_steps;
JS::Handle<DOM::Document> m_document;
};
}