qwaylandsurface_p.h

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// Copyright (C) 2017 Pier Luigi Fiorini <pierluigi.fiorini@gmail.com>
// Copyright (C) 2017 Jolla Ltd, author: <giulio.camuffo@jollamobile.com>
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
 
#ifndef QWAYLANDSURFACE_P_H
#define QWAYLANDSURFACE_P_H
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
 
#include <QtWaylandCompositor/qtwaylandcompositorglobal.h>
#include <private/qobject_p.h>
 
#include <private/qwlclientbuffer_p.h>
#include <QtWaylandCompositor/qwaylandsurface.h>
#include <QtWaylandCompositor/qwaylandbufferref.h>
 
#include <QtWaylandCompositor/private/qwlregion_p.h>
 
#include <QtCore/QList>
#include <QtCore/QRect>
#include <QtGui/QRegion>
#include <QtGui/QImage>
#include <QtGui/QWindow>
 
#include <QtCore/QTextStream>
#include <QtCore/QMetaType>
 
#include <wayland-util.h>
 
#include <QtWaylandCompositor/private/qwayland-server-wayland.h>
#include <QtWaylandCompositor/private/qwaylandviewporter_p.h>
#include <QtWaylandCompositor/private/qwaylandidleinhibitv1_p.h>
 
#include <QtCore/qpointer.h>
 
QT_BEGIN_NAMESPACE
 
class QWaylandCompositor;
class QWaylandSurface;
class QWaylandView;
class QWaylandInputMethodControl;
 
namespace QtWayland {
class FrameCallback;
}
 
class Q_WAYLANDCOMPOSITOR_EXPORT QWaylandSurfacePrivate : public QObjectPrivate, public QtWaylandServer::wl_surface
{
public:
    static QWaylandSurfacePrivate *get(QWaylandSurface *surface);
 
    QWaylandSurfacePrivate();
    ~QWaylandSurfacePrivate() override;
 
    void ref();
    void deref();
 
    void refView(QWaylandView *view);
    void derefView(QWaylandView *view);
 
    using QtWaylandServer::wl_surface::resource;
 
    void removeFrameCallback(QtWayland::FrameCallback *callback);
 
    void notifyViewsAboutDestruction();
 
#ifndef QT_NO_DEBUG
    static void addUninitializedSurface(QWaylandSurfacePrivate *surface);
    static void removeUninitializedSurface(QWaylandSurfacePrivate *surface);
    static bool hasUninitializedSurface();
#endif
 
    void initSubsurface(QWaylandSurface *parent, struct ::wl_client *client, int id, int version);
    bool isSubsurface() const { return subsurface; }
    QPoint subsurfacePosition() const { return subsurface ? subsurface->position() : QPoint(); }
    QWaylandSurfacePrivate *parentSurface() const { return subsurface ? subsurface->parentSurface : nullptr; }
 
protected:
    void surface_destroy_resource(Resource *resource) override;
 
    void surface_destroy(Resource *resource) override;
    void surface_offset(Resource *resource, int32_t x, int32_t y) override;
    void surface_attach(Resource *resource,
                        struct wl_resource *buffer, int x, int y) override;
    void surface_damage(Resource *resource,
                        int32_t x, int32_t y, int32_t width, int32_t height) override;
    void surface_damage_buffer(Resource *resource, int32_t x, int32_t y, int32_t width, int32_t height) override;
    void surface_frame(Resource *resource,
                       uint32_t callback) override;
    void surface_set_opaque_region(Resource *resource,
                                   struct wl_resource *region) override;
    void surface_set_input_region(Resource *resource,
                                  struct wl_resource *region) override;
    void surface_commit(Resource *resource) override;
    void surface_set_buffer_transform(Resource *resource, int32_t transform) override;
    void surface_set_buffer_scale(Resource *resource, int32_t bufferScale) override;
 
    QtWayland::ClientBuffer *getBuffer(struct ::wl_resource *buffer);
 
public: //member variables
    QWaylandCompositor *compositor = nullptr;
    int refCount = 1;
    QWaylandClient *client = nullptr;
    QList<QWaylandView *> views;
    QRegion damage;
    QWaylandBufferRef bufferRef;
    QWaylandSurfaceRole *role = nullptr;
    QWaylandViewporterPrivate::Viewport *viewport = nullptr;
 
    struct {
        QWaylandBufferRef buffer;
        QRegion surfaceDamage;
        QRegion bufferDamage;
        QPoint offset;
        bool newlyAttached = false;
        QRegion inputRegion;
        int bufferScale = 1;
        QRectF sourceGeometry;
        QSize destinationSize;
        QRegion opaqueRegion;
        Qt::ScreenOrientation contentOrientation = Qt::PrimaryOrientation;
    } pending;
 
    QPoint lastLocalMousePos;
    QPoint lastGlobalMousePos;
 
    QList<QtWayland::FrameCallback *> pendingFrameCallbacks;
    QList<QtWayland::FrameCallback *> frameCallbacks;
 
    QList<QPointer<QWaylandSurface>> subsurfaceChildren;
 
    QList<QWaylandIdleInhibitManagerV1Private::Inhibitor *> idleInhibitors;
 
    QRegion inputRegion;
    QRegion opaqueRegion;
 
    QRectF sourceGeometry;
    QSize destinationSize;
    QSize bufferSize;
    int bufferScale = 1;
    bool isCursorSurface = false;
    bool destroyed = false;
    bool hasContent = false;
    bool isInitialized = false;
    bool isOpaque = false;
    Qt::ScreenOrientation contentOrientation = Qt::PrimaryOrientation;
    QWindow::Visibility visibility;
#if QT_CONFIG(im)
    QWaylandInputMethodControl *inputMethodControl = nullptr;
#endif
 
    class Subsurface : public QtWaylandServer::wl_subsurface
    {
    public:
        Subsurface(QWaylandSurfacePrivate *s) : surface(s) {}
        QWaylandSurfacePrivate *surfaceFromResource();
        QPoint position() const { return pos; };
 
    protected:
        void subsurface_set_position(wl_subsurface::Resource *resource, int32_t x, int32_t y) override;
        void subsurface_place_above(wl_subsurface::Resource *resource, struct wl_resource *sibling) override;
        void subsurface_place_below(wl_subsurface::Resource *resource, struct wl_resource *sibling) override;
        void subsurface_set_sync(wl_subsurface::Resource *resource) override;
        void subsurface_set_desync(wl_subsurface::Resource *resource) override;
 
    private:
        friend class QWaylandSurfacePrivate;
        QWaylandSurfacePrivate *surface = nullptr;
        QWaylandSurfacePrivate *parentSurface = nullptr;
        QPoint pos;
    };
 
    Subsurface *subsurface = nullptr;
 
#ifndef QT_NO_DEBUG
    static QList<QWaylandSurfacePrivate *> uninitializedSurfaces;
#endif
    Q_DECLARE_PUBLIC(QWaylandSurface)
    Q_DISABLE_COPY(QWaylandSurfacePrivate)
};
 
QT_END_NAMESPACE
 
#endif