[gnome-characters] menu: Suppress visible-but-not-mapped warning

[Daiki Ueno <dueno src gnome org>]

commit baf7f5b06842161aceaeb94538203eea2dbcf35d
Author: Daiki Ueno <dueno src gnome org>
Date:   Mon Mar 16 15:47:30 2015 +0900

    menu: Suppress visible-but-not-mapped warning
    
    Unselect font listbox at ::unmap so the JS callback of the
    ::row-selected signal isn't called at exit.

 src/menu.js |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/src/menu.js b/src/menu.js
index 2d7b58b..7793b2b 100644
--- a/src/menu.js
+++ b/src/menu.js
@@ -64,7 +64,10 @@ const MenuPopover = new Lang.Class({
 
         // This silents warning at Characters exit about this widget being
         // visible but not mapped.  Borrowed from Maps.
-        this.connect('unmap', function(popover) { popover.hide(); });
+        this.connect('unmap', function(popover) {
+            popover._font_listbox.unselect_all();
+            popover.hide();
+        });
     },
 
     _handleSearchChanged: function(entry) {