[gthumb] hide the image frame when in fullscreen mode

[Paolo Bacchilega <paobac src gnome org>]

commit ba7d407512a01c42d5d6a3d5a0f35d30e267af10
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Jan 2 12:11:58 2016 +0100

    hide the image frame when in fullscreen mode

 extensions/image_viewer/gth-image-viewer-page.c |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/extensions/image_viewer/gth-image-viewer-page.c b/extensions/image_viewer/gth-image-viewer-page.c
index 18f10df..061cf69 100644
--- a/extensions/image_viewer/gth-image-viewer-page.c
+++ b/extensions/image_viewer/gth-image-viewer-page.c
@@ -1297,7 +1297,16 @@ static void
 gth_image_viewer_page_real_fullscreen (GthViewerPage *base,
                                       gboolean       active)
 {
-       /* void */
+       GthImageViewerPage *self;
+       GthImageViewerTool *tool;
+
+       self = (GthImageViewerPage *) base;
+       tool = gth_image_viewer_get_tool (GTH_IMAGE_VIEWER (self->priv->viewer));
+
+       if (! GTH_IS_IMAGE_DRAGGER (tool))
+               return;
+
+       g_object_set (tool, "show-frame", ! active, NULL);
 }