compositor: don't try to paint window that is not viewable, fix #324

Based on metacity commit: a0b8c85c4c0cfb9a378d7c5554af15fdd7703155 From: Alberts Muktupāvels <alberts.muktupavels@gmail.com>
mate-desktop · Jan 2, 2018 · 59756b8 · 59756b8
1 parent 6583998
commit 59756b8
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/compositor/compositor-xrender.c b/src/compositor/compositor-xrender.c
@@ -1266,6 +1266,9 @@ paint_windows (MetaScreen   *screen,
           continue;
         }
 
+      if (cw->attrs.map_state != IsViewable)
+        continue;
+
 #if 0
       if ((cw->attrs.x + cw->attrs.width < 1) ||
           (cw->attrs.y + cw->attrs.height < 1) ||