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/*
* Copyright (C) 2025 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#if USE(GLIB_EVENT_LOOP)
#include <wtf/RunLoop.h>
namespace WTF {
// Activity observers (used to implement WebCore::RunLoopObserver)
class ActivityObserver : public RefCounted<ActivityObserver> {
WTF_MAKE_TZONE_ALLOCATED(ActivityObserver);
public:
enum class ContinueObservation { Yes, No };
using Callback = Function<ContinueObservation()>;
static Ref<ActivityObserver> create(uint8_t order, OptionSet<RunLoop::Activity> activities, Callback&& callback)
{
return adoptRef(*new ActivityObserver(order, activities, WTFMove(callback)));
}
uint8_t order() const { return m_order; }
OptionSet<RunLoop::Activity> activities() const { return m_activities; }
ContinueObservation notify() const { return m_callback(); }
private:
ActivityObserver(uint8_t order, OptionSet<RunLoop::Activity> activities, Callback&& callback)
: m_order(order)
, m_activities(activities)
, m_callback(WTFMove(callback))
{
ASSERT(m_callback);
}
private:
uint8_t m_order { 0 };
OptionSet<RunLoop::Activity> m_activities;
Callback m_callback;
};
} // namespace WTF
using WTF::ActivityObserver;
#endif // USE(GLIB_EVENT_LOOP)
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