Subsurface implementation, with C++ API

This adds support for subsurfaces to QWaylandCompositor and
QWaylandSurface.

Task-number: QTBUG-49809
Change-Id: I2fa9ee4dcd1f48a2a28dab536f9cd6edc716e42b
Reviewed-by: Giulio Camuffo <giuliocamuffo@gmail.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/src/compositor/compositor_api/qwaylandcompositor.cpp b/src/compositor/compositor_api/qwaylandcompositor.cpp
index 9aec337bd..5480b1cf1 100644
--- a/src/compositor/compositor_api/qwaylandcompositor.cpp
+++ b/src/compositor/compositor_api/qwaylandcompositor.cpp
@@ -158,6 +158,7 @@ void QWaylandCompositorPrivate::init()
         socket_name = arguments.at(socketArg + 1).toLocal8Bit();
 
     wl_compositor::init(display, 3);
+    wl_subcompositor::init(display, 1);
 
     data_device_manager =  new QtWayland::DataDeviceManager(q);
 
@@ -270,7 +271,7 @@ void QWaylandCompositorPrivate::addPolishObject(QObject *object)
 */
 
 
-void QWaylandCompositorPrivate::compositor_create_surface(Resource *resource, uint32_t id)
+void QWaylandCompositorPrivate::compositor_create_surface(wl_compositor::Resource *resource, uint32_t id)
 {
     Q_Q(QWaylandCompositor);
     QWaylandClient *client = QWaylandClient::fromWlClient(q, resource->client());
@@ -292,11 +293,20 @@ void QWaylandCompositorPrivate::compositor_create_surface(Resource *resource, ui
     emit q->surfaceCreated(surface);
 }
 
-void QWaylandCompositorPrivate::compositor_create_region(Resource *resource, uint32_t id)
+void QWaylandCompositorPrivate::compositor_create_region(wl_compositor::Resource *resource, uint32_t id)
 {
     new QtWayland::Region(resource->client(), id);
 }
 
+void QWaylandCompositorPrivate::subcompositor_get_subsurface(wl_subcompositor::Resource *resource, uint32_t id, wl_resource *surface, wl_resource *parent)
+{
+    Q_Q(QWaylandCompositor);
+    QWaylandSurface *childSurface = QWaylandSurface::fromResource(surface);
+    QWaylandSurface *parentSurface = QWaylandSurface::fromResource(parent);
+    QWaylandSurfacePrivate::get(childSurface)->initSubsurface(parentSurface, resource->client(), id, 1);
+    emit q->subsurfaceChanged(childSurface, parentSurface);
+}
+
 /*!
   \internal
   Used to create a fallback QWaylandSurface when no surface was