ladybird/Libraries/LibCore/Event.cpp

49 lines
1.1 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/WeakPtr.h>
#include <LibCore/Event.h>
#include <LibCore/EventReceiver.h>
namespace Core {
ChildEvent::ChildEvent(Type type, EventReceiver& child, EventReceiver* insertion_before_child)
: Core::Event(type)
, m_child(child.make_weak_ptr())
, m_insertion_before_child(AK::make_weak_ptr_if_nonnull(insertion_before_child))
{
}
EventReceiver* ChildEvent::child()
{
if (auto ref = m_child.strong_ref())
return ref.ptr();
return nullptr;
}
EventReceiver const* ChildEvent::child() const
{
if (auto ref = m_child.strong_ref())
return ref.ptr();
return nullptr;
}
EventReceiver* ChildEvent::insertion_before_child()
{
if (auto ref = m_insertion_before_child.strong_ref())
return ref.ptr();
return nullptr;
}
EventReceiver const* ChildEvent::insertion_before_child() const
{
if (auto ref = m_insertion_before_child.strong_ref())
return ref.ptr();
return nullptr;
}
}