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****************************************************************************/

#include "qwaylandextendedoutput.h"

#include "qwaylandscreen.h"

#include "wayland-output-extension-client-protocol.h"

#include <QtGui/QWindowSystemInterface>

#include <QtCore/QDebug>

QWaylandOutputExtension::QWaylandOutputExtension(QWaylandDisplay *display, uint32_t id)
{
    m_output_extension = static_cast<struct wl_output_extension *>(
                wl_display_bind(display->wl_display(),id, &wl_output_extension_interface));

    QList<QPlatformScreen *> platformScreens = display->screens();
    for (int i = 0; i < platformScreens.size(); i++) {
        QWaylandScreen *waylandScreen = static_cast<QWaylandScreen *>(platformScreens.at(i));
        if (!waylandScreen->extendedOutput()) {
            QWaylandExtendedOutput *extendedOutput = getExtendedOutput(waylandScreen);
            waylandScreen->setExtendedOutput(extendedOutput);
            qDebug() << "extended output enabled";
        }
    }
}

QWaylandExtendedOutput *QWaylandOutputExtension::getExtendedOutput(QWaylandScreen *screen)
{
    qDebug() << "getExtendedOutput";
   struct wl_extended_output *extended_output =
           wl_output_extension_get_extended_output(m_output_extension,screen->output());
   return new QWaylandExtendedOutput(screen,extended_output);
}

QWaylandExtendedOutput::QWaylandExtendedOutput(QWaylandScreen *screen, wl_extended_output *extended_output)
    : m_extended_output(extended_output)
    , m_screen(screen)
    , m_orientation(m_screen->orientation())
{
    wl_extended_output_add_listener(m_extended_output,&extended_output_listener,this);
}

Qt::ScreenOrientation QWaylandExtendedOutput::currentOrientation() const
{
    return m_orientation;
}

void QWaylandExtendedOutput::set_screen_rotation(void *data, wl_extended_output *wl_extended_output, int32_t rotation)
{
    Q_UNUSED(wl_extended_output);
    QWaylandExtendedOutput *extended_output = static_cast<QWaylandExtendedOutput *>(data);
    switch (rotation) {
    case WL_EXTENDED_OUTPUT_ROTATION_PORTRAITORIENTATION:
        extended_output->m_orientation = Qt::PortraitOrientation;
        break;
    case WL_EXTENDED_OUTPUT_ROTATION_LANDSCAPEORIENTATION:
        extended_output->m_orientation = Qt::LandscapeOrientation;
        break;
    case WL_EXTENDED_OUTPUT_ROTATION_INVERTEDPORTRAITORIENTATION:
        extended_output->m_orientation = Qt::InvertedPortraitOrientation;
        break;
    case WL_EXTENDED_OUTPUT_ROTATION_INVERTEDLANDSCAPEORIENTATION:
        extended_output->m_orientation = Qt::InvertedLandscapeOrientation;
        break;
    default:
        extended_output->m_orientation = Qt::PortraitOrientation;
        break;
    }
    QWindowSystemInterface::handleScreenOrientationChange(extended_output->m_screen->screen(), extended_output->m_orientation);
}

const struct wl_extended_output_listener QWaylandExtendedOutput::extended_output_listener = {
    QWaylandExtendedOutput::set_screen_rotation
};