Add transient parent and offset to QWaylandSurface

Compositors now know more about transient surfaces.
With the parent and offset information, compositors can place transient
surfaces relative to their parent.

Change-Id: I73e08aad7bb1d8a7d40b2006208eb48e2a1a8455
Reviewed-by: Giulio Camuffo <giulio.camuffo@jollamobile.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/src/compositor/compositor_api/qwaylandsurface.cpp b/src/compositor/compositor_api/qwaylandsurface.cpp
index ce5ba2ea0..c0a04c297 100644
--- a/src/compositor/compositor_api/qwaylandsurface.cpp
+++ b/src/compositor/compositor_api/qwaylandsurface.cpp
@@ -192,6 +192,18 @@ QWaylandSurface::WindowType QWaylandSurface::windowType() const
     return d->windowType;
 }
 
+QWaylandSurface *QWaylandSurface::transientParent() const
+{
+    Q_D(const QWaylandSurface);
+    return d->transientParent()->waylandSurface();
+}
+
+QPointF QWaylandSurface::transientOffset() const
+{
+    Q_D(const QWaylandSurface);
+    return d->m_transientOffset;
+}
+
 QtWayland::Surface * QWaylandSurface::handle()
 {
     Q_D(QWaylandSurface);