/*
  This file is part of KDDockWidgets.

  SPDX-FileCopyrightText: 2019-2022 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
  Author: Sérgio Martins <sergio.martins@kdab.com>

  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only

  Contact KDAB at <info@kdab.com> for commercial licensing options.
*/

#include "Platform_qt.h"
#include "Window_qt.h"

#include <QWindow>
#include <QDebug>
#include <QGuiApplication>

using namespace KDDockWidgets;


Platform_qt::Platform_qt()
{
    if (!qApp)
        qWarning() << "Please call KDDockWidgets::initPlatform() after QGuiApplication";
}

Platform_qt::~Platform_qt()
{
}

std::shared_ptr<ViewWrapper> Platform_qt::focusedView() const
{
    return qobjectAsView(qApp->focusObject());
}

Window::List Platform_qt::windows() const
{
    Window::List windows;
    const auto qtwindows = qApp->topLevelWindows();
    windows.reserve(qtwindows.size());
    for (QWindow *qtwindow : qtwindows) {
        windows << windowFromQWindow(qtwindow);
    }

    return windows;
}

std::shared_ptr<Window> Platform_qt::qobjectAsWindow(QObject *obj) const
{
    if (auto window = qobject_cast<QWindow *>(obj))
        return windowFromQWindow(window);
    return nullptr;
}