Bug ID: 772840
Summary: [Wayland] clutter stage subsurface needs clipping on
Version: git master
QA Contact: clutter-ma...@gnome.bugs
CC: gn...@genodeftest.de, jad...@gmail.com,
Depends on: 771320
GNOME version: 3.19/3.20
+++ This bug was initially created as a clone of Bug #771320 +++
The *positioning* of the GtkClutterEmbed widget and clutter stage should be
fixed with the patch from bug 771320 in gtk+, so now the widget moves along
with teh scroll window, but because it's using a subsurface on Wayland, it's
not clipped inside the scroll window/toplevel, so the widget will appear
floating around, sometimes outside of the toplevel window.
The goal of this bug is to implement clipping for the subsurface as used by
clutter under Wayland.
One posisbility is to use the viewporter extension, but it's not implemented in
mutter yet, so would be good to have a fallback solution as well, for when
viewporter is not supported.
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