[evince] Disable view presentation if there is no document.

[Carlos Garcia Campos <carlosgc src gnome org>]

commit b4bf316517533aa612dfa486840915a2e80e22d4
Author: Lubos Koudelka <koudelka lubos email cz>
Date:   Fri Mar 1 23:35:33 2013 +0100

    Disable view presentation if there is no document.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=685591

 shell/ev-window.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 2a3e67d..1f57146 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -455,6 +455,7 @@ ev_window_setup_action_sensitivity (EvWindow *ev_window)
        ev_window_set_action_sensitive (ev_window, "FileProperties", has_document && has_properties);
        ev_window_set_action_sensitive (ev_window, "FileOpenContainingFolder", has_document);
        ev_window_set_action_sensitive (ev_window, "FileSendTo", has_document);
+       ev_window_set_action_sensitive (ev_window, "ViewPresentation", has_document);
 
         /* Edit menu */
        ev_window_set_action_sensitive (ev_window, "EditSelectAll", has_pages && can_get_text);