[bijiben] main-view: Crash when closing app with empty note

[Isaque Galdino de Araujo <igaldino src gnome org>]

commit 9f937210ef8e3b13cdcb4fd962723063eb0419c4
Author: Isaque Galdino <igaldino gmail com>
Date:   Sun Sep 10 12:41:03 2017 -0300

    main-view: Crash when closing app with empty note
    
    Application is crashing when closing it in an empty note.
    
    When application is closed, it's raised an item-delete action. The
    item-delete process tries to get back to main view, but view are now
    destroyed, so it reaches a NULL pointer.
    
    This patch checks if view is NULL and then returns without further
    processing.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=787508

 src/bjb-main-view.c |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/src/bjb-main-view.c b/src/bjb-main-view.c
index 5263c36..7c50d11 100644
--- a/src/bjb-main-view.c
+++ b/src/bjb-main-view.c
@@ -783,6 +783,11 @@ bjb_main_view_update_model (BjbMainView *self)
 gboolean
 bjb_main_view_get_selection_mode (BjbMainView *self)
 {
+  /* if self->priv->view is NULL, that means the view was destroyed
+   * because the windows is being closed by an exit action, so it
+   * doesn't matter which SelectionMode we return.
+   */
+  if (self->priv->view == NULL) return FALSE;
   return gd_main_view_get_selection_mode (self->priv->view);
 }
 
@@ -795,6 +800,11 @@ bjb_main_view_set_selection_mode (BjbMainView *self, gboolean mode)
 GdMainViewType
 bjb_main_view_get_view_type (BjbMainView *view)
 {
+  /* if view->priv->view is NULL, that means the view was destroyed
+   * because the windows is being closed by an exit action, so it
+   * doesn't matter which ViewType we return.
+   */
+  if (view->priv->view == NULL) return GD_MAIN_VIEW_ICON;
   return gd_main_view_get_view_type (view->priv->view);
 }