Add a way to have out of source shell integrations

Some platforms (especially non-desktop ones) may use a custom
Wayland shell extension, more tailored to the form factor than
the generic and desktoppy wl_shell or xdg_shell. Instead of stuffing
N protocol implementations in the QPA plugin use a plugin architecture
to allow them to live out of tree.
When creating a shell surface the QT_WAYLAND_SHELL_INTEGRATION env
variable will be checked, and if it points to a valid plugin that
will be used to create the shell surface, falling back to wl_shell
or xdg_shell if no plugin is specified.

Change-Id: I05019174bb915199dd726f5fdcc0385ef846e8de
Reviewed-by: Pier Luigi Fiorini <pierluigi.fiorini@gmail.com>
Reviewed-by: Philippe Coval <rzr@gna.org>
Reviewed-by: Jan Arne Petersen <jan.petersen@kdab.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@jollamobile.com>

22 files changed, 618 insertions, 79 deletions

diff --git a/src/client/client.pro b/src/client/client.pro
index 1d89619c0..6aaa25419 100644
--- a/src/client/client.pro
+++ b/src/client/client.pro
@@ -107,3 +107,4 @@ HEADERS +=  qwaylandintegration_p.h \
             qwaylanddatadevice_p.h \
 
 include(hardwareintegration/hardwareintegration.pri)
+include(shellintegration/shellintegration.pri)
diff --git a/src/client/qwaylanddisplay.cpp b/src/client/qwaylanddisplay.cpp
index 459c7f461..5764d3110 100644
--- a/src/client/qwaylanddisplay.cpp
+++ b/src/client/qwaylanddisplay.cpp
@@ -51,8 +51,11 @@
 #include "qwaylanddatadevicemanager_p.h"
 #include "qwaylandhardwareintegration_p.h"
 #include "qwaylandxdgshell_p.h"
+#include "qwaylandxdgsurface_p.h"
+#include "qwaylandwlshellsurface_p.h"
 
 #include "qwaylandwindowmanagerintegration_p.h"
+#include "qwaylandshellintegration_p.h"
 
 #include "qwaylandextendedoutput_p.h"
 #include "qwaylandextendedsurface_p.h"
@@ -79,6 +82,20 @@ struct wl_surface *QWaylandDisplay::createSurface(void *handle)
     return surface;
 }
 
+QWaylandShellSurface *QWaylandDisplay::createShellSurface(QWaylandWindow *window)
+{
+    if (mWaylandIntegration->shellIntegration())
+        return mWaylandIntegration->shellIntegration()->createShellSurface(window);
+
+    if (shellXdg()) {
+        return new QWaylandXdgSurface(shellXdg()->get_xdg_surface(window->object()), window);
+    } else if (shell()) {
+        return new QWaylandWlShellSurface(shell()->get_shell_surface(window->object()), window);
+    }
+
+    return Q_NULLPTR;
+}
+
 QWaylandClientBufferIntegration * QWaylandDisplay::clientBufferIntegration() const
 {
     return mWaylandIntegration->clientBufferIntegration();
diff --git a/src/client/qwaylanddisplay_p.h b/src/client/qwaylanddisplay_p.h
index f1b35a712..6ed30d195 100644
--- a/src/client/qwaylanddisplay_p.h
+++ b/src/client/qwaylanddisplay_p.h
@@ -73,6 +73,7 @@ class QWaylandEventThread;
 class QWaylandIntegration;
 class QWaylandHardwareIntegration;
 class QWaylandXdgShell;
+class QWaylandShellSurface;
 
 namespace QtWayland {
     class qt_output_extension;
@@ -101,6 +102,7 @@ public:
     QWaylandScreen *screenForOutput(struct wl_output *output) const;
 
     struct wl_surface *createSurface(void *handle);
+    QWaylandShellSurface *createShellSurface(QWaylandWindow *window);
 
     QWaylandClientBufferIntegration *clientBufferIntegration() const;
 
@@ -142,6 +144,7 @@ public:
         RegistryGlobal(uint32_t id_, const QString &interface_, uint32_t version_, struct ::wl_registry *registry_)
             : id(id_), interface(interface_), version(version_), registry(registry_) { }
     };
+    QList<RegistryGlobal> globals() const { return mGlobals; }
 
     /* wl_registry_add_listener does not add but rather sets a listener, so this function is used
      * to enable many listeners at once. */
diff --git a/src/client/qwaylandextendedsurface.cpp b/src/client/qwaylandextendedsurface.cpp
index b2b22688c..e589698ef 100644
--- a/src/client/qwaylandextendedsurface.cpp
+++ b/src/client/qwaylandextendedsurface.cpp
@@ -53,8 +53,8 @@
 
 QT_BEGIN_NAMESPACE
 
-QWaylandExtendedSurface::QWaylandExtendedSurface(QWaylandWindow *window, struct ::qt_extended_surface *extended_surface)
-    : QtWayland::qt_extended_surface(extended_surface)
+QWaylandExtendedSurface::QWaylandExtendedSurface(QWaylandWindow *window)
+    : QtWayland::qt_extended_surface(window->display()->windowExtension()->get_extended_surface(window->object()))
     , m_window(window)
 {
 }
@@ -71,11 +71,6 @@ void QWaylandExtendedSurface::updateGenericProperty(const QString &name, const Q
     ds << value;
 
     update_generic_property(name, byteValue);
-
-    m_properties.insert(name, value);
-    QWaylandNativeInterface *nativeInterface = static_cast<QWaylandNativeInterface *>(
-                QGuiApplication::platformNativeInterface());
-    nativeInterface->emitWindowPropertyChanged(m_window, name);
 }
 
 void QWaylandExtendedSurface::setContentOrientationMask(Qt::ScreenOrientations mask)
@@ -94,21 +89,6 @@ void QWaylandExtendedSurface::setContentOrientationMask(Qt::ScreenOrientations m
     set_content_orientation_mask(wlmask);
 }
 
-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 visibility)
 {
     m_window->window()->setVisibility(static_cast<QWindow::Visibility>(visibility));
@@ -122,11 +102,7 @@ void QWaylandExtendedSurface::extended_surface_set_generic_property(const QStrin
     QDataStream ds(data);
     ds >> variantValue;
 
-    m_properties.insert(name, variantValue);
-
-    QWaylandNativeInterface *nativeInterface = static_cast<QWaylandNativeInterface *>(
-        QGuiApplication::platformNativeInterface());
-    nativeInterface->emitWindowPropertyChanged(m_window, name);
+    m_window->setProperty(name, variantValue);
 }
 
 void QWaylandExtendedSurface::extended_surface_close()
diff --git a/src/client/qwaylandextendedsurface_p.h b/src/client/qwaylandextendedsurface_p.h
index 2b559a93b..1d966292c 100644
--- a/src/client/qwaylandextendedsurface_p.h
+++ b/src/client/qwaylandextendedsurface_p.h
@@ -58,17 +58,13 @@ class QWaylandWindow;
 class Q_WAYLAND_CLIENT_EXPORT QWaylandExtendedSurface : public QtWayland::qt_extended_surface
 {
 public:
-    QWaylandExtendedSurface(QWaylandWindow *window, struct ::qt_extended_surface *extended_surface);
+    QWaylandExtendedSurface(QWaylandWindow *window);
     ~QWaylandExtendedSurface();
 
     void setContentOrientationMask(Qt::ScreenOrientations mask);
 
     void updateGenericProperty(const QString &name, const QVariant &value);
 
-    QVariantMap properties() const;
-    QVariant property(const QString &name);
-    QVariant property(const QString &name, const QVariant &defaultValue);
-
     Qt::WindowFlags setWindowFlags(Qt::WindowFlags flags);
 
 private:
diff --git a/src/client/qwaylandintegration.cpp b/src/client/qwaylandintegration.cpp
index 02b7e56c6..85300a130 100644
--- a/src/client/qwaylandintegration.cpp
+++ b/src/client/qwaylandintegration.cpp
@@ -72,6 +72,9 @@
 #include "qwaylandserverbufferintegration_p.h"
 #include "qwaylandserverbufferintegrationfactory_p.h"
 
+#include "qwaylandshellintegration_p.h"
+#include "qwaylandshellintegrationfactory_p.h"
+
 QT_BEGIN_NAMESPACE
 
 class GenericWaylandTheme: public QGenericUnixTheme
@@ -108,6 +111,7 @@ public:
 
 QWaylandIntegration::QWaylandIntegration()
     : mClientBufferIntegration(0)
+    , mShellIntegration(Q_NULLPTR)
     , mFontDb(new QGenericUnixFontDatabase())
     , mNativeInterface(new QWaylandNativeInterface(this))
 #ifndef QT_NO_ACCESSIBILITY
@@ -117,6 +121,7 @@ QWaylandIntegration::QWaylandIntegration()
 #endif
     , mClientBufferIntegrationInitialized(false)
     , mServerBufferIntegrationInitialized(false)
+    , mShellIntegrationInitialized(false)
 {
     mDisplay = new QWaylandDisplay(this);
     mClipboard = new QWaylandClipboard(mDisplay);
@@ -260,6 +265,14 @@ QWaylandServerBufferIntegration *QWaylandIntegration::serverBufferIntegration()
     return mServerBufferIntegration;
 }
 
+QWaylandShellIntegration *QWaylandIntegration::shellIntegration() const
+{
+    if (!mShellIntegrationInitialized)
+        const_cast<QWaylandIntegration *>(this)->initializeShellIntegration();
+
+    return mShellIntegration;
+}
+
 void QWaylandIntegration::initializeClientBufferIntegration()
 {
     mClientBufferIntegrationInitialized = true;
@@ -321,4 +334,28 @@ void QWaylandIntegration::initializeServerBufferIntegration()
         qWarning("Failed to load server buffer integration %s\n", qPrintable(targetKey));
 }
 
+void QWaylandIntegration::initializeShellIntegration()
+{
+    mShellIntegrationInitialized = true;
+
+    QByteArray integrationName = qgetenv("QT_WAYLAND_SHELL_INTEGRATION");
+    QString targetKey = QString::fromLocal8Bit(integrationName);
+
+    if (targetKey.isEmpty()) {
+        return;
+    }
+
+    QStringList keys = QWaylandShellIntegrationFactory::keys();
+    if (keys.contains(targetKey)) {
+        mShellIntegration = QWaylandShellIntegrationFactory::create(targetKey, QStringList());
+    }
+    if (mShellIntegration && mShellIntegration->initialize(mDisplay)) {
+        qDebug("Using the '%s' shell integration", qPrintable(targetKey));
+    } else {
+        delete mShellIntegration;
+        mShellIntegration = Q_NULLPTR;
+        qWarning("Failed to load shell integration %s", qPrintable(targetKey));
+    }
+}
+
 QT_END_NAMESPACE
diff --git a/src/client/qwaylandintegration_p.h b/src/client/qwaylandintegration_p.h
index 7c062c0ee..025e0b4df 100644
--- a/src/client/qwaylandintegration_p.h
+++ b/src/client/qwaylandintegration_p.h
@@ -51,6 +51,7 @@ class QWaylandBuffer;
 class QWaylandDisplay;
 class QWaylandClientBufferIntegration;
 class QWaylandServerBufferIntegration;
+class QWaylandShellIntegration;
 
 class Q_WAYLAND_CLIENT_EXPORT QWaylandIntegration : public QPlatformIntegration
 {
@@ -90,12 +91,15 @@ public:
 
     virtual QWaylandClientBufferIntegration *clientBufferIntegration() const;
     virtual QWaylandServerBufferIntegration *serverBufferIntegration() const;
+    virtual QWaylandShellIntegration *shellIntegration() const;
 protected:
     QWaylandClientBufferIntegration *mClientBufferIntegration;
     QWaylandServerBufferIntegration *mServerBufferIntegration;
+    QWaylandShellIntegration *mShellIntegration;
 private:
     void initializeClientBufferIntegration();
     void initializeServerBufferIntegration();
+    void initializeShellIntegration();
     QPlatformFontDatabase *mFontDb;
     QPlatformClipboard *mClipboard;
     QPlatformDrag *mDrag;
@@ -105,6 +109,7 @@ private:
     QPlatformAccessibility *mAccessibility;
     bool mClientBufferIntegrationInitialized;
     bool mServerBufferIntegrationInitialized;
+    bool mShellIntegrationInitialized;
 };
 
 QT_END_NAMESPACE
diff --git a/src/client/qwaylandnativeinterface.cpp b/src/client/qwaylandnativeinterface.cpp
index e3d6fef4a..3d714c2fb 100644
--- a/src/client/qwaylandnativeinterface.cpp
+++ b/src/client/qwaylandnativeinterface.cpp
@@ -99,34 +99,25 @@ void *QWaylandNativeInterface::nativeResourceForScreen(const QByteArray &resourc
 QVariantMap QWaylandNativeInterface::windowProperties(QPlatformWindow *window) const
 {
     QWaylandWindow *waylandWindow = static_cast<QWaylandWindow *>(window);
-    if (QWaylandExtendedSurface *extendedWindow = waylandWindow->extendedWindow())
-        return extendedWindow->properties();
-    return QVariantMap();
+    return waylandWindow->properties();
 }
 
-
 QVariant QWaylandNativeInterface::windowProperty(QPlatformWindow *window, const QString &name) const
 {
     QWaylandWindow *waylandWindow = static_cast<QWaylandWindow *>(window);
-    if (QWaylandExtendedSurface *extendedWindow = waylandWindow->extendedWindow())
-        return extendedWindow->property(name);
-    return QVariant();
+    return waylandWindow->property(name);
 }
 
 QVariant QWaylandNativeInterface::windowProperty(QPlatformWindow *window, const QString &name, const QVariant &defaultValue) const
 {
     QWaylandWindow *waylandWindow = static_cast<QWaylandWindow *>(window);
-    if (QWaylandExtendedSurface *extendedWindow = waylandWindow->extendedWindow()) {
-        return extendedWindow->property(name,defaultValue);
-    }
-    return defaultValue;
+    return waylandWindow->property(name, defaultValue);
 }
 
 void QWaylandNativeInterface::setWindowProperty(QPlatformWindow *window, const QString &name, const QVariant &value)
 {
     QWaylandWindow *wlWindow = static_cast<QWaylandWindow*>(window);
-    if (QWaylandExtendedSurface *extendedWindow = wlWindow->extendedWindow())
-        extendedWindow->updateGenericProperty(name,value);
+    wlWindow->sendProperty(name, value);
 }
 
 void QWaylandNativeInterface::emitWindowPropertyChanged(QPlatformWindow *window, const QString &name)
diff --git a/src/client/qwaylandshellsurface.cpp b/src/client/qwaylandshellsurface.cpp
index 80e509b15..d68ae1b5d 100644
--- a/src/client/qwaylandshellsurface.cpp
+++ b/src/client/qwaylandshellsurface.cpp
@@ -40,3 +40,20 @@
 ****************************************************************************/
 
 #include "qwaylandshellsurface_p.h"
+#include "qwaylandwindow_p.h"
+#include "qwaylandextendedsurface_p.h"
+
+QWaylandShellSurface::QWaylandShellSurface(QWaylandWindow *window)
+                    : m_window(window)
+{
+}
+
+void QWaylandShellSurface::setWindowFlags(Qt::WindowFlags flags)
+{
+}
+
+void QWaylandShellSurface::sendProperty(const QString &name, const QVariant &value)
+{
+    Q_UNUSED(name)
+    Q_UNUSED(value)
+}
diff --git a/src/client/qwaylandshellsurface_p.h b/src/client/qwaylandshellsurface_p.h
index 2f59f60c1..6f2336162 100644
--- a/src/client/qwaylandshellsurface_p.h
+++ b/src/client/qwaylandshellsurface_p.h
@@ -51,6 +51,7 @@
 
 QT_BEGIN_NAMESPACE
 
+class QVariant;
 class QWaylandWindow;
 class QWaylandInputDevice;
 class QWindow;
@@ -58,6 +59,7 @@ class QWindow;
 class Q_WAYLAND_CLIENT_EXPORT QWaylandShellSurface
 {
 public:
+    explicit QWaylandShellSurface(QWaylandWindow *window);
     virtual ~QWaylandShellSurface() {}
     virtual void resize(QWaylandInputDevice * /*inputDevice*/, enum wl_shell_surface_resize /*edges*/)
     {}
@@ -66,7 +68,19 @@ public:
     virtual void setTitle(const QString & /*title*/) {}
     virtual void setAppId(const QString & /*appId*/) {}
 
-private:
+    virtual void setWindowFlags(Qt::WindowFlags flags);
+
+    virtual bool isExposed() const { return true; }
+
+    virtual void raise() {}
+    virtual void lower() {}
+    virtual void setContentOrientationMask(Qt::ScreenOrientations orientation) { Q_UNUSED(orientation) }
+
+    virtual void sendProperty(const QString &name, const QVariant &value);
+
+    inline QWaylandWindow *window() { return m_window; }
+
+protected:
     virtual void setMaximized() {}
     virtual void setFullscreen() {}
     virtual void setNormal() {}
@@ -74,6 +88,9 @@ private:
 
     virtual void setTopLevel() {}
     virtual void updateTransientParent(QWindow * /*parent*/) {}
+
+private:
+    QWaylandWindow *m_window;
     friend class QWaylandWindow;
 };
 
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index c61574529..a6190c0d1 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -48,10 +48,10 @@
 #include "qwaylandshellsurface_p.h"
 #include "qwaylandwlshellsurface_p.h"
 #include "qwaylandxdgsurface_p.h"
-#include "qwaylandextendedsurface_p.h"
 #include "qwaylandsubsurface_p.h"
 #include "qwaylanddecoration_p.h"
 #include "qwaylandwindowmanagerintegration_p.h"
+#include "qwaylandnativeinterface_p.h"
 
 #include <QtCore/QFileInfo>
 #include <QtCore/QPointer>
@@ -72,7 +72,6 @@ QWaylandWindow::QWaylandWindow(QWindow *window)
     , mScreen(QWaylandScreen::waylandScreenFromWindow(window))
     , mDisplay(mScreen->display())
     , mShellSurface(0)
-    , mExtendedWindow(0)
     , mSubSurfaceWindow(0)
     , mWindowDecoration(0)
     , mMouseEventsInContentArea(false)
@@ -95,21 +94,13 @@ QWaylandWindow::QWaylandWindow(QWindow *window)
     static WId id = 1;
     mWindowId = id++;
 
-    if (!(window->flags() & Qt::BypassWindowManagerHint)) {
-        if (mDisplay->shellXdg()) {
-           if (window->type() & Qt::Window) {
-                mShellSurface = new QWaylandXdgSurface(mDisplay->shellXdg()->get_xdg_surface(object()), this);
-            }
-        } else if (mDisplay->shell() && window->type() & Qt::Window) {
-            mShellSurface = new QWaylandWlShellSurface(mDisplay->shell()->get_shell_surface(object()), this);
-        }
-    }
-
-    if (mDisplay->windowExtension())
-        mExtendedWindow = new QWaylandExtendedSurface(this, mDisplay->windowExtension()->get_extended_surface(object()));
     if (mDisplay->subSurfaceExtension())
         mSubSurfaceWindow = new QWaylandSubSurface(this, mDisplay->subSurfaceExtension()->get_sub_surface_aware_surface(object()));
 
+    if (!(window->flags() & Qt::BypassWindowManagerHint)) {
+        mShellSurface = mDisplay->createShellSurface(this);
+    }
+
     if (mShellSurface) {
         // Set initial surface title
         mShellSurface->setTitle(window->title());
@@ -141,7 +132,6 @@ QWaylandWindow::~QWaylandWindow()
 {
     if (isInitialized()) {
         delete mShellSurface;
-        delete mExtendedWindow;
         destroy();
     }
     if (mFrameCallback)
@@ -221,10 +211,10 @@ void QWaylandWindow::setGeometry(const QRect &rect)
         else
             QWindowSystemInterface::handleGeometryChange(window(), geometry());
 
-        QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
-
         mSentInitialResize = true;
     }
+
+    QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(), geometry().size()));
 }
 
 void QWaylandWindow::setVisible(bool visible)
@@ -261,15 +251,15 @@ void QWaylandWindow::setVisible(bool visible)
 
 void QWaylandWindow::raise()
 {
-    if (mExtendedWindow)
-        mExtendedWindow->raise();
+    if (mShellSurface)
+        mShellSurface->raise();
 }
 
 
 void QWaylandWindow::lower()
 {
-    if (mExtendedWindow)
-        mExtendedWindow->lower();
+    if (mShellSurface)
+        mShellSurface->lower();
 }
 
 void QWaylandWindow::configure(uint32_t edges, int32_t width, int32_t height)
@@ -423,11 +413,6 @@ QWaylandShellSurface *QWaylandWindow::shellSurface() const
     return mShellSurface;
 }
 
-QWaylandExtendedSurface *QWaylandWindow::extendedWindow() const
-{
-    return mExtendedWindow;
-}
-
 QWaylandSubSurface *QWaylandWindow::subSurfaceWindow() const
 {
     return mSubSurfaceWindow;
@@ -461,8 +446,8 @@ void QWaylandWindow::handleContentOrientationChange(Qt::ScreenOrientation orient
 
 void QWaylandWindow::setOrientationMask(Qt::ScreenOrientations mask)
 {
-    if (mExtendedWindow)
-        mExtendedWindow->setContentOrientationMask(mask);
+    if (mShellSurface)
+        mShellSurface->setContentOrientationMask(mask);
 }
 
 void QWaylandWindow::setWindowState(Qt::WindowState state)
@@ -473,8 +458,8 @@ void QWaylandWindow::setWindowState(Qt::WindowState state)
 
 void QWaylandWindow::setWindowFlags(Qt::WindowFlags flags)
 {
-    if (mExtendedWindow)
-        mExtendedWindow->setWindowFlags(flags);
+    if (mShellSurface)
+        mShellSurface->setWindowFlags(flags);
 }
 
 bool QWaylandWindow::createDecoration()
@@ -643,6 +628,13 @@ void QWaylandWindow::requestActivateWindow()
     // we rely on compositor setting keyboard focus based on window stacking.
 }
 
+bool QWaylandWindow::isExposed() const
+{
+    if (mShellSurface)
+        return window()->isVisible() && mShellSurface->isExposed();
+    return QPlatformWindow::isExposed();
+}
+
 bool QWaylandWindow::setMouseGrabEnabled(bool grab)
 {
     if (window()->type() != Qt::Popup) {
@@ -683,4 +675,37 @@ bool QWaylandWindow::setWindowStateInternal(Qt::WindowState state)
     return true;
 }
 
+void QWaylandWindow::sendProperty(const QString &name, const QVariant &value)
+{
+    m_properties.insert(name, value);
+    QWaylandNativeInterface *nativeInterface = static_cast<QWaylandNativeInterface *>(
+                QGuiApplication::platformNativeInterface());
+    nativeInterface->emitWindowPropertyChanged(this, name);
+    if (mShellSurface)
+        mShellSurface->sendProperty(name, value);
+}
+
+void QWaylandWindow::setProperty(const QString &name, const QVariant &value)
+{
+    m_properties.insert(name, value);
+    QWaylandNativeInterface *nativeInterface = static_cast<QWaylandNativeInterface *>(
+                QGuiApplication::platformNativeInterface());
+    nativeInterface->emitWindowPropertyChanged(this, name);
+}
+
+QVariantMap QWaylandWindow::properties() const
+{
+    return m_properties;
+}
+
+QVariant QWaylandWindow::property(const QString &name)
+{
+    return m_properties.value(name);
+}
+
+QVariant QWaylandWindow::property(const QString &name, const QVariant &defaultValue)
+{
+    return m_properties.value(name, defaultValue);
+}
+
 QT_END_NAMESPACE
diff --git a/src/client/qwaylandwindow_p.h b/src/client/qwaylandwindow_p.h
index 2ca47d590..9c0be84c6 100644
--- a/src/client/qwaylandwindow_p.h
+++ b/src/client/qwaylandwindow_p.h
@@ -45,6 +45,7 @@
 #include <QtCore/QWaitCondition>
 #include <QtCore/QMutex>
 #include <QtGui/QIcon>
+#include <QtCore/QVariant>
 
 #include <qpa/qplatformwindow.h>
 
@@ -58,7 +59,6 @@ QT_BEGIN_NAMESPACE
 class QWaylandDisplay;
 class QWaylandBuffer;
 class QWaylandShellSurface;
-class QWaylandExtendedSurface;
 class QWaylandSubSurface;
 class QWaylandDecoration;
 class QWaylandInputDevice;
@@ -125,8 +125,8 @@ public:
 
     static QWaylandWindow *fromWlSurface(::wl_surface *surface);
 
+    QWaylandDisplay *display() const { return mDisplay; }
     QWaylandShellSurface *shellSurface() const;
-    QWaylandExtendedSurface *extendedWindow() const;
     QWaylandSubSurface *subSurfaceWindow() const;
     QWaylandScreen *screen() const { return mScreen; }
 
@@ -140,6 +140,7 @@ public:
     void lower() Q_DECL_OVERRIDE;
 
     void requestActivateWindow() Q_DECL_OVERRIDE;
+    bool isExposed() const Q_DECL_OVERRIDE;
 
     QWaylandDecoration *decoration() const;
     void setDecoration(QWaylandDecoration *decoration);
@@ -171,6 +172,13 @@ public:
     bool setMouseGrabEnabled(bool grab);
     static QWaylandWindow *mouseGrab() { return mMouseGrab; }
 
+    void sendProperty(const QString &name, const QVariant &value);
+    void setProperty(const QString &name, const QVariant &value);
+
+    QVariantMap properties() const;
+    QVariant property(const QString &name);
+    QVariant property(const QString &name, const QVariant &defaultValue);
+
 public slots:
     void requestResize();
 
@@ -178,7 +186,6 @@ protected:
     QWaylandScreen *mScreen;
     QWaylandDisplay *mDisplay;
     QWaylandShellSurface *mShellSurface;
-    QWaylandExtendedSurface *mExtendedWindow;
     QWaylandSubSurface *mSubSurfaceWindow;
 
     QWaylandDecoration *mWindowDecoration;
@@ -198,6 +205,7 @@ protected:
     bool mCanResize;
     bool mResizeDirty;
     bool mResizeAfterSwap;
+    QVariantMap m_properties;
 
     bool mSentInitialResize;
     QPoint mOffset;
diff --git a/src/client/qwaylandwlshellsurface.cpp b/src/client/qwaylandwlshellsurface.cpp
index 4b73ec232..a8e89ec98 100644
--- a/src/client/qwaylandwlshellsurface.cpp
+++ b/src/client/qwaylandwlshellsurface.cpp
@@ -46,6 +46,7 @@
 #include "qwaylandinputdevice_p.h"
 #include "qwaylanddecoration_p.h"
 #include "qwaylandscreen_p.h"
+#include "qwaylandextendedsurface_p.h"
 
 #include <QtCore/QDebug>
 
@@ -53,15 +54,20 @@ QT_BEGIN_NAMESPACE
 
 QWaylandWlShellSurface::QWaylandWlShellSurface(struct ::wl_shell_surface *shell_surface, QWaylandWindow *window)
     : QtWayland::wl_shell_surface(shell_surface)
+    , QWaylandShellSurface(window)
     , m_window(window)
     , m_maximized(false)
     , m_fullscreen(false)
+    , m_extendedWindow(Q_NULLPTR)
 {
+    if (window->display()->windowExtension())
+        m_extendedWindow = new QWaylandExtendedSurface(window);
 }
 
 QWaylandWlShellSurface::~QWaylandWlShellSurface()
 {
     wl_shell_surface_destroy(object());
+    delete m_extendedWindow;
 }
 
 void QWaylandWlShellSurface::resize(QWaylandInputDevice *inputDevice, enum wl_shell_surface_resize edges)
@@ -87,6 +93,36 @@ void QWaylandWlShellSurface::setAppId(const QString & appId)
     return QtWayland::wl_shell_surface::set_class(appId);
 }
 
+void QWaylandWlShellSurface::raise()
+{
+    if (m_extendedWindow)
+        m_extendedWindow->raise();
+}
+
+void QWaylandWlShellSurface::lower()
+{
+    if (m_extendedWindow)
+        m_extendedWindow->lower();
+}
+
+void QWaylandWlShellSurface::setContentOrientationMask(Qt::ScreenOrientations orientation)
+{
+    if (m_extendedWindow)
+        m_extendedWindow->setContentOrientationMask(orientation);
+}
+
+void QWaylandWlShellSurface::setWindowFlags(Qt::WindowFlags flags)
+{
+    if (m_extendedWindow)
+        m_extendedWindow->setWindowFlags(flags);
+}
+
+void QWaylandWlShellSurface::sendProperty(const QString &name, const QVariant &value)
+{
+    if (m_extendedWindow)
+        m_extendedWindow->updateGenericProperty(name, value);
+}
+
 void QWaylandWlShellSurface::setMaximized()
 {
     m_maximized = true;
diff --git a/src/client/qwaylandwlshellsurface_p.h b/src/client/qwaylandwlshellsurface_p.h
index d02bb7bfe..8d6e298b9 100644
--- a/src/client/qwaylandwlshellsurface_p.h
+++ b/src/client/qwaylandwlshellsurface_p.h
@@ -55,6 +55,7 @@ QT_BEGIN_NAMESPACE
 class QWaylandWindow;
 class QWaylandInputDevice;
 class QWindow;
+class QWaylandExtendedSurface;
 
 class Q_WAYLAND_CLIENT_EXPORT QWaylandWlShellSurface : public QtWayland::wl_shell_surface
         , public QWaylandShellSurface
@@ -72,6 +73,12 @@ public:
     void setTitle(const QString & title) Q_DECL_OVERRIDE;
     void setAppId(const QString &appId) Q_DECL_OVERRIDE;
 
+    void raise() Q_DECL_OVERRIDE;
+    void lower() Q_DECL_OVERRIDE;
+    void setContentOrientationMask(Qt::ScreenOrientations orientation) Q_DECL_OVERRIDE;
+    void setWindowFlags(Qt::WindowFlags flags) Q_DECL_OVERRIDE;
+    void sendProperty(const QString &name, const QVariant &value) Q_DECL_OVERRIDE;
+
 private:
     void setMaximized() Q_DECL_OVERRIDE;
     void setFullscreen() Q_DECL_OVERRIDE;
@@ -86,6 +93,7 @@ private:
     bool m_maximized;
     bool m_fullscreen;
     QSize m_size;
+    QWaylandExtendedSurface *m_extendedWindow;
 
     void shell_surface_ping(uint32_t serial) Q_DECL_OVERRIDE;
     void shell_surface_configure(uint32_t edges,
diff --git a/src/client/qwaylandxdgsurface.cpp b/src/client/qwaylandxdgsurface.cpp
index 5fb74d25b..126c9db72 100644
--- a/src/client/qwaylandxdgsurface.cpp
+++ b/src/client/qwaylandxdgsurface.cpp
@@ -46,6 +46,7 @@
 #include "qwaylandinputdevice_p.h"
 #include "qwaylanddecoration_p.h"
 #include "qwaylandscreen_p.h"
+#include "qwaylandextendedsurface_p.h"
 
 #include <QtCore/QDebug>
 
@@ -53,16 +54,21 @@ QT_BEGIN_NAMESPACE
 
 QWaylandXdgSurface::QWaylandXdgSurface(struct ::xdg_surface *xdg_surface, QWaylandWindow *window)
     : QtWayland::xdg_surface(xdg_surface)
+    , QWaylandShellSurface(window)
     , m_window(window)
     , m_maximized(false)
     , m_minimized(false)
     , m_fullscreen(false)
+    , m_extendedWindow(Q_NULLPTR)
 {
+    if (window->display()->windowExtension())
+        m_extendedWindow = new QWaylandExtendedSurface(window);
 }
 
 QWaylandXdgSurface::~QWaylandXdgSurface()
 {
     xdg_surface_destroy(object());
+    delete m_extendedWindow;
 }
 
 void QWaylandXdgSurface::resize(QWaylandInputDevice *inputDevice, enum wl_shell_surface_resize edges)
@@ -160,6 +166,36 @@ void QWaylandXdgSurface::setAppId(const QString & appId)
     return QtWayland::xdg_surface::set_app_id(appId);
 }
 
+void QWaylandXdgSurface::raise()
+{
+    if (m_extendedWindow)
+        m_extendedWindow->raise();
+}
+
+void QWaylandXdgSurface::lower()
+{
+    if (m_extendedWindow)
+        m_extendedWindow->lower();
+}
+
+void QWaylandXdgSurface::setContentOrientationMask(Qt::ScreenOrientations orientation)
+{
+    if (m_extendedWindow)
+        m_extendedWindow->setContentOrientationMask(orientation);
+}
+
+void QWaylandXdgSurface::setWindowFlags(Qt::WindowFlags flags)
+{
+    if (m_extendedWindow)
+        m_extendedWindow->setWindowFlags(flags);
+}
+
+void QWaylandXdgSurface::sendProperty(const QString &name, const QVariant &value)
+{
+    if (m_extendedWindow)
+        m_extendedWindow->updateGenericProperty(name, value);
+}
+
 void QWaylandXdgSurface::xdg_surface_configure(int32_t width, int32_t height)
 {
     m_window->configure(0 , width, height);
diff --git a/src/client/qwaylandxdgsurface_p.h b/src/client/qwaylandxdgsurface_p.h
index d2a154ef0..635c9496a 100644
--- a/src/client/qwaylandxdgsurface_p.h
+++ b/src/client/qwaylandxdgsurface_p.h
@@ -55,6 +55,7 @@ QT_BEGIN_NAMESPACE
 class QWaylandWindow;
 class QWaylandInputDevice;
 class QWindow;
+class QWaylandExtendedSurface;
 
 class Q_WAYLAND_CLIENT_EXPORT QWaylandXdgSurface : public QtWayland::xdg_surface
         , public QWaylandShellSurface
@@ -74,6 +75,12 @@ public:
     void setTitle(const QString &title) Q_DECL_OVERRIDE;
     void setAppId(const QString &appId) Q_DECL_OVERRIDE;
 
+    void raise() Q_DECL_OVERRIDE;
+    void lower() Q_DECL_OVERRIDE;
+    void setContentOrientationMask(Qt::ScreenOrientations orientation) Q_DECL_OVERRIDE;
+    void setWindowFlags(Qt::WindowFlags flags) Q_DECL_OVERRIDE;
+    void sendProperty(const QString &name, const QVariant &value) Q_DECL_OVERRIDE;
+
     bool isFullscreen() const { return m_fullscreen; }
     bool isMaximized() const { return m_maximized; }
 
@@ -92,6 +99,7 @@ private:
     bool m_minimized;
     bool m_fullscreen;
     QSize m_size;
+    QWaylandExtendedSurface *m_extendedWindow;
 
     void xdg_surface_configure(int32_t width,
                                int32_t height) Q_DECL_OVERRIDE;
diff --git a/src/client/shellintegration/qwaylandshellintegration_p.h b/src/client/shellintegration/qwaylandshellintegration_p.h
new file mode 100644
index 000000000..45a78199c
--- /dev/null
+++ b/src/client/shellintegration/qwaylandshellintegration_p.h
@@ -0,0 +1,66 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Jolla Ltd
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** 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
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDSHELLINTEGRATION_H
+#define QWAYLANDSHELLINTEGRATION_H
+
+#include <QtCore/qglobal.h>
+#include <QtWaylandClient/private/qwaylandclientexport_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QWaylandWindow;
+class QWaylandDisplay;
+class QWaylandShellSurface;
+
+class Q_WAYLAND_CLIENT_EXPORT QWaylandShellIntegration
+{
+public:
+    QWaylandShellIntegration() {}
+    virtual ~QWaylandShellIntegration() {}
+
+    virtual bool initialize(QWaylandDisplay *display) = 0;
+    virtual QWaylandShellSurface *createShellSurface(QWaylandWindow *window) = 0;
+};
+
+QT_END_NAMESPACE
+
+#endif // QWAYLANDSHELLINTEGRATION_H
diff --git a/src/client/shellintegration/qwaylandshellintegrationfactory.cpp b/src/client/shellintegration/qwaylandshellintegrationfactory.cpp
new file mode 100644
index 000000000..f780409e1
--- /dev/null
+++ b/src/client/shellintegration/qwaylandshellintegrationfactory.cpp
@@ -0,0 +1,96 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Jolla Ltd
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** 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
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandshellintegrationfactory_p.h"
+#include "qwaylandshellintegrationplugin_p.h"
+#include "qwaylandshellintegration_p.h"
+#include <QtCore/private/qfactoryloader_p.h>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDir>
+
+QT_BEGIN_NAMESPACE
+
+#ifndef QT_NO_LIBRARY
+Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,
+    (QWaylandShellIntegrationFactoryInterface_iid, QLatin1String("/wayland-shell-integration"), Qt::CaseInsensitive))
+Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader,
+                          (QWaylandShellIntegrationFactoryInterface_iid, QLatin1String(""), Qt::CaseInsensitive))
+#endif
+
+QStringList QWaylandShellIntegrationFactory::keys(const QString &pluginPath)
+{
+#ifndef QT_NO_LIBRARY
+    QStringList list;
+    if (!pluginPath.isEmpty()) {
+        QCoreApplication::addLibraryPath(pluginPath);
+        list = directLoader()->keyMap().values();
+        if (!list.isEmpty()) {
+            const QString postFix = QStringLiteral(" (from ")
+                                    + QDir::toNativeSeparators(pluginPath)
+                                    + QLatin1Char(')');
+            const QStringList::iterator end = list.end();
+            for (QStringList::iterator it = list.begin(); it != end; ++it)
+                (*it).append(postFix);
+        }
+    }
+    list.append(loader()->keyMap().values());
+    return list;
+#else
+    return QStringList();
+#endif
+}
+
+QWaylandShellIntegration *QWaylandShellIntegrationFactory::create(const QString &name, const QStringList &args, const QString &pluginPath)
+{
+#ifndef QT_NO_LIBRARY
+    // Try loading the plugin from platformPluginPath first:
+    if (!pluginPath.isEmpty()) {
+        QCoreApplication::addLibraryPath(pluginPath);
+        if (QWaylandShellIntegration *ret = qLoadPlugin1<QWaylandShellIntegration, QWaylandShellIntegrationPlugin>(directLoader(), name, args))
+            return ret;
+    }
+    if (QWaylandShellIntegration *ret = qLoadPlugin1<QWaylandShellIntegration, QWaylandShellIntegrationPlugin>(loader(), name, args))
+        return ret;
+#endif
+    return Q_NULLPTR;
+}
+
+QT_END_NAMESPACE
diff --git a/src/client/shellintegration/qwaylandshellintegrationfactory_p.h b/src/client/shellintegration/qwaylandshellintegrationfactory_p.h
new file mode 100644
index 000000000..415067ef8
--- /dev/null
+++ b/src/client/shellintegration/qwaylandshellintegrationfactory_p.h
@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Jolla Ltd
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** 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
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDSHELLINTEGRATIONFACTORY_H
+#define QWAYLANDSHELLINTEGRATIONFACTORY_H
+
+#include <QtWaylandClient/private/qwaylandclientexport_p.h>
+#include <QtCore/QStringList>
+
+QT_BEGIN_NAMESPACE
+
+class QWaylandShellIntegration;
+
+class Q_WAYLAND_CLIENT_EXPORT QWaylandShellIntegrationFactory
+{
+public:
+    static QStringList keys(const QString &pluginPath = QString());
+    static QWaylandShellIntegration *create(const QString &name, const QStringList &args, const QString &pluginPath = QString());
+};
+
+QT_END_NAMESPACE
+
+#endif // QWAYLANDSHELLINTEGRATIONFACTORY_H
diff --git a/src/client/shellintegration/qwaylandshellintegrationplugin.cpp b/src/client/shellintegration/qwaylandshellintegrationplugin.cpp
new file mode 100644
index 000000000..05b5e91ad
--- /dev/null
+++ b/src/client/shellintegration/qwaylandshellintegrationplugin.cpp
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Jolla Ltd
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** 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
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwaylandshellintegrationplugin_p.h"
+
+QT_BEGIN_NAMESPACE
+
+QWaylandShellIntegrationPlugin::QWaylandShellIntegrationPlugin(QObject *parent)
+                              : QObject(parent)
+{
+}
+
+QWaylandShellIntegrationPlugin::~QWaylandShellIntegrationPlugin()
+{
+}
+
+QT_END_NAMESPACE
diff --git a/src/client/shellintegration/qwaylandshellintegrationplugin_p.h b/src/client/shellintegration/qwaylandshellintegrationplugin_p.h
new file mode 100644
index 000000000..7d01fb4e5
--- /dev/null
+++ b/src/client/shellintegration/qwaylandshellintegrationplugin_p.h
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Jolla Ltd
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** 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
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWAYLANDSHELLINTEGRATIONPLUGIN_H
+#define QWAYLANDSHELLINTEGRATIONPLUGIN_H
+
+#include <QtWaylandClient/private/qwaylandclientexport_p.h>
+
+#include <QtCore/qplugin.h>
+#include <QtCore/qfactoryinterface.h>
+#include <QtCore/QObject>
+
+QT_BEGIN_NAMESPACE
+
+class QWaylandShellIntegration;
+
+#define QWaylandShellIntegrationFactoryInterface_iid "org.qt-project.Qt.WaylandClient.QWaylandShellIntegrationFactoryInterface.5.3"
+
+class Q_WAYLAND_CLIENT_EXPORT QWaylandShellIntegrationPlugin : public QObject
+{
+    Q_OBJECT
+public:
+    explicit QWaylandShellIntegrationPlugin(QObject *parent = 0);
+    ~QWaylandShellIntegrationPlugin();
+
+    virtual QWaylandShellIntegration *create(const QString &key, const QStringList &paramList) = 0;
+};
+
+QT_END_NAMESPACE
+
+#endif // QWAYLANDSHELLINTEGRATIONPLUGIN_H
diff --git a/src/client/shellintegration/shellintegration.pri b/src/client/shellintegration/shellintegration.pri
new file mode 100644
index 000000000..de889a47a
--- /dev/null
+++ b/src/client/shellintegration/shellintegration.pri
@@ -0,0 +1,11 @@
+INCLUDEPATH += $$PWD
+
+SOURCES += \
+           $$PWD/qwaylandshellintegrationplugin.cpp \
+           $$PWD/qwaylandshellintegrationfactory.cpp
+
+HEADERS += \
+           $$PWD/qwaylandshellintegration_p.h \
+           $$PWD/qwaylandshellintegrationplugin_p.h \
+           $$PWD/qwaylandshellintegrationfactory_p.h
+