[libchamplain: 44/45] Hide left_actor in path layer when no clone is visible.

[Jiří Techet <jiritechet src gnome org>]

commit 08624901af6b45004eb7d3ce94e8e2a196876c44
Author: Marius Stanciu <stanciumarius94 gmail com>
Date:   Wed Aug 10 15:11:56 2016 +0300

    Hide left_actor in path layer when no clone is visible.

 champlain/champlain-path-layer.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/champlain/champlain-path-layer.c b/champlain/champlain-path-layer.c
index 0872c04..47956ad 100644
--- a/champlain/champlain-path-layer.c
+++ b/champlain/champlain-path-layer.c
@@ -593,13 +593,19 @@ invalidate_canvas (ChamplainPathLayer *layer)
   priv->right_surface_updated = FALSE;
   clutter_content_invalidate (priv->right_canvas);
 
+  /* Since the left actor only renders paths visible on the clone, it should be hidden
+   * when no clone is visible.
+   */
   if (left_actor_width != 0)
     {
       clutter_actor_set_size (priv->left_actor, left_actor_width, left_actor_height);
       clutter_canvas_set_size (CLUTTER_CANVAS (priv->left_canvas), left_actor_width, left_actor_height);
       priv->left_surface_updated = FALSE;
       clutter_content_invalidate (priv->left_canvas);
+      clutter_actor_show (priv->left_actor);
     }
+  else
+    clutter_actor_hide (priv->left_actor);
 
   priv->redraw_scheduled = FALSE;