Add sendConfigure() for WaylandSurface

If compositor calls directly setSize() for surface, it changes only the
size of the surface's boundary. If it is needed to change the contents
of the surface synchronously, send_configure() must be called.

Change-Id: I9c607b57c6d31d4ada6621dc57063f36f24b9d95
Reviewed-by: Jørgen Lind <jorgen.lind@nokia.com>

src/compositor/compositor_api/waylandsurface.cpp

@@ -154,6 +154,13 @@ void WaylandSurface::setSize(const QSize &size)
     d->surface->setSize(size);
 }
 
+void WaylandSurface::sendConfigure(const QSize &size)
+{
+    Q_D(WaylandSurface);
+    if (d->surface->shellSurface())
+        d->surface->shellSurface()->sendConfigure(WL_SHELL_SURFACE_RESIZE_BOTTOM_RIGHT, size.width(), size.height());
+}
+
 Qt::ScreenOrientations WaylandSurface::orientationUpdateMask() const
 {
     Q_D(const WaylandSurface);

src/compositor/compositor_api/waylandsurface.h

@@ -111,6 +111,7 @@ class Q_COMPOSITOR_EXPORT WaylandSurface : public QObject
     void setPos(const QPointF &pos);
     QSize size() const;
     void setSize(const QSize &size);
+    void sendConfigure(const QSize &size);
 
     Qt::ScreenOrientations orientationUpdateMask() const;
     Qt::ScreenOrientation contentOrientation() const;