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** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
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****************************************************************************/

#include "qwaylandextendedsurface.h"

#include "qwaylandwindow.h"

#include "wayland-client.h"

#include "qwaylanddisplay.h"

#include "qwaylandnativeinterface.h"

#include <QtGui/QGuiApplication>
#include <qpa/qplatformnativeinterface.h>
#include <qpa/qwindowsysteminterface.h>

QT_BEGIN_NAMESPACE

QWaylandExtendedSurface::QWaylandExtendedSurface(QWaylandWindow *window, struct ::qt_extended_surface *extended_surface)
    : QtWayland::qt_extended_surface(extended_surface)
    , m_window(window)
    , m_exposed(true)
{
}

void QWaylandExtendedSurface::updateGenericProperty(const QString &name, const QVariant &value)
{
    QByteArray byteValue;
    QDataStream ds(&byteValue, QIODevice::WriteOnly);
    ds << value;

    update_generic_property(name, byteValue);

    m_properties.insert(name, value);
    QWaylandNativeInterface *nativeInterface = static_cast<QWaylandNativeInterface *>(
                QGuiApplication::platformNativeInterface());
    nativeInterface->emitWindowPropertyChanged(m_window, name);
}

static int32_t waylandRotationFromScreenOrientation(Qt::ScreenOrientation orientation)
{
    switch (orientation) {
    case Qt::PortraitOrientation: return QT_EXTENDED_SURFACE_ORIENTATION_PORTRAITORIENTATION;
    case Qt::InvertedPortraitOrientation: return QT_EXTENDED_SURFACE_ORIENTATION_INVERTEDPORTRAITORIENTATION;
    case Qt::LandscapeOrientation: return QT_EXTENDED_SURFACE_ORIENTATION_LANDSCAPEORIENTATION;
    case Qt::InvertedLandscapeOrientation: return QT_EXTENDED_SURFACE_ORIENTATION_INVERTEDLANDSCAPEORIENTATION;
    default: return QT_EXTENDED_SURFACE_ORIENTATION_PRIMARYORIENTATION;
    }
}

void QWaylandExtendedSurface::setContentOrientation(Qt::ScreenOrientation orientation)
{
    set_content_orientation(waylandRotationFromScreenOrientation(orientation));
}

QVariantMap QWaylandExtendedSurface::properties() const
{
    return m_properties;
}

QVariant QWaylandExtendedSurface::property(const QString &name)
{
    return m_properties.value(name);
}

QVariant QWaylandExtendedSurface::property(const QString &name, const QVariant &defaultValue)
{
    return m_properties.value(name,defaultValue);
}

void QWaylandExtendedSurface::extended_surface_onscreen_visibility(int32_t visible)
{
    // Do not send events when the state is not changing...
    if (visible == m_exposed)
        return;

    m_exposed = visible;
    QWaylandWindow *w = m_window;
    QWindowSystemInterface::handleExposeEvent(w->window(),
                                              visible
                                              ? QRegion(w->geometry())
                                              : QRegion());
}

void QWaylandExtendedSurface::extended_surface_set_generic_property(const QString &name, wl_array *value)
{
    QByteArray data = QByteArray::fromRawData(static_cast<char *>(value->data), value->size);

    QVariant variantValue;
    QDataStream ds(data);
    ds >> variantValue;

    m_properties.insert(name, variantValue);

    QWaylandNativeInterface *nativeInterface = static_cast<QWaylandNativeInterface *>(
        QGuiApplication::platformNativeInterface());
    nativeInterface->emitWindowPropertyChanged(m_window, name);
}

void QWaylandExtendedSurface::extended_surface_close()
{
    QWindowSystemInterface::handleCloseEvent(m_window->window());
}

Qt::WindowFlags QWaylandExtendedSurface::setWindowFlags(Qt::WindowFlags flags)
{
    uint wlFlags = 0;

    if (flags & Qt::WindowStaysOnTopHint) wlFlags |= QT_EXTENDED_SURFACE_WINDOWFLAG_STAYSONTOP;
    if (flags & Qt::WindowOverridesSystemGestures) wlFlags |= QT_EXTENDED_SURFACE_WINDOWFLAG_OVERRIDESSYSTEMGESTURES;

    set_window_flags(wlFlags);

    return flags & (Qt::WindowStaysOnTopHint | Qt::WindowOverridesSystemGestures);
}

QT_END_NAMESPACE