From 05993458e27d4821d37c0150c7c10e5f6cc2f29b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20Gr=C3=A4=C3=9Flin?= <mgraesslin@kde.org>
Date: Fri, 18 Mar 2016 09:13:27 +0100
Subject: [PATCH] [server] Send frameRendered to all sub-surfaces

If a surface got rendered it implies that all sub-surfaces also got
rendered. So pass the frameRendered to the complete sub-surface tree.
---
 src/wayland/surface_interface.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/wayland/surface_interface.cpp b/src/wayland/surface_interface.cpp
index d55cc3025f..e9a2f3f5e8 100644
--- a/src/wayland/surface_interface.cpp
+++ b/src/wayland/surface_interface.cpp
@@ -179,6 +179,13 @@ void SurfaceInterface::frameRendered(quint32 msec)
         wl_callback_send_done(r, msec);
         wl_resource_destroy(r);
     }
+    for (auto it = d->current.children.constBegin(); it != d->current.children.constEnd(); ++it) {
+        const auto &subSurface = *it;
+        if (subSurface.isNull() || subSurface->d_func()->surface.isNull()) {
+            continue;
+        }
+        subSurface->d_func()->surface->frameRendered(msec);
+    }
     if (needsFlush)  {
         client()->flush();
     }