pixelcache: Add map/unmap functions

Because GTK does not invalidate windows that aren't mapped, we cannot
update the pixel cache when the window it handles isn't mapped. So we
add API to call when GDK windows get mapped/unmapped.

https://bugzilla.gnome.org/show_bug.cgi?id=726475

1 files changed, 12 insertions, 0 deletions

diff --git a/gtk/gtkpixelcache.c b/gtk/gtkpixelcache.c
index 2a909641f7..339518bf8a 100644
--- a/gtk/gtkpixelcache.c
+++ b/gtk/gtkpixelcache.c
@@ -467,3 +467,15 @@ _gtk_pixel_cache_draw (GtkPixelCache *cache,
       draw (cr, user_data);
     }
 }
+
+void
+_gtk_pixel_cache_map (GtkPixelCache *cache)
+{
+  _gtk_pixel_cache_invalidate (cache, NULL);
+}
+
+void
+_gtk_pixel_cache_unmap (GtkPixelCache *cache)
+{
+  gtk_pixel_cache_blow_cache (cache);
+}