Prevented crash and missing animation for shm clients.

Do the delayed attach _before_ we call handleExposeEvent(), which
might in turn lead to a damage being called before any buffer is
attached.

Change-Id: I55ef4f0de1b3ec201e727cebc52cfd891963b2b4
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/src/plugins/platforms/wayland/qwaylandwindow.cpp b/src/plugins/platforms/wayland/qwaylandwindow.cpp
index 07a9c467f..0273cd294 100644
--- a/src/plugins/platforms/wayland/qwaylandwindow.cpp
+++ b/src/plugins/platforms/wayland/qwaylandwindow.cpp
@@ -122,14 +122,15 @@ void QWaylandWindow::setVisible(bool visible)
 {
 
     if (visible) {
+        if (mBuffer)
+            wl_surface_attach(mSurface, mBuffer->buffer(), 0, 0);
+
         if (!mSentInitialResize) {
             QWindowSystemInterface::handleSynchronousGeometryChange(window(), geometry());
             mSentInitialResize = true;
         }
+
         QWindowSystemInterface::handleSynchronousExposeEvent(window(), QRect(QPoint(), geometry().size()));
-        if (mBuffer) {
-            wl_surface_attach(mSurface, mBuffer->buffer(),0,0);
-        }
     } else {
         QWindowSystemInterface::handleSynchronousExposeEvent(window(), QRect(QPoint(), geometry().size()));
         wl_surface_attach(mSurface, 0,0,0);