[gnome-photos/wip/rishi/collection: 10/17] main-toolbar: Be more strict about what is acceptable

[Debarshi Ray <debarshir src gnome org>]

commit 780b52f24dadf98de0c9dd2751d4ae0093d053db
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Jul 28 15:28:43 2017 +0200

    main-toolbar: Be more strict about what is acceptable

 src/photos-main-toolbar.c |   13 ++++++++++++-
 1 files changed, 12 insertions(+), 1 deletions(-)
---
diff --git a/src/photos-main-toolbar.c b/src/photos-main-toolbar.c
index cce9fbe..ae4a687 100644
--- a/src/photos-main-toolbar.c
+++ b/src/photos-main-toolbar.c
@@ -113,10 +113,21 @@ photos_main_toolbar_set_toolbar_title (PhotosMainToolbar *self)
   gboolean selection_mode;
   gchar *primary = NULL;
 
-  active_collection = photos_item_manager_get_active_collection (PHOTOS_ITEM_MANAGER (self->item_mngr));
   selection_mode = photos_utils_get_selection_mode ();
   window_mode = photos_mode_controller_get_window_mode (self->mode_cntrlr);
 
+  if (selection_mode)
+    {
+      g_return_if_fail (window_mode == PHOTOS_WINDOW_MODE_COLLECTIONS
+                        || window_mode == PHOTOS_WINDOW_MODE_FAVORITES
+                        || window_mode == PHOTOS_WINDOW_MODE_OVERVIEW
+                        || window_mode == PHOTOS_WINDOW_MODE_SEARCH);
+    }
+
+  if (window_mode == PHOTOS_WINDOW_MODE_EDIT || window_mode == PHOTOS_WINDOW_MODE_PREVIEW)
+    g_return_if_fail (!selection_mode);
+
+  active_collection = photos_item_manager_get_active_collection (PHOTOS_ITEM_MANAGER (self->item_mngr));
   if (window_mode == PHOTOS_WINDOW_MODE_OVERVIEW
       || window_mode == PHOTOS_WINDOW_MODE_COLLECTIONS
       || window_mode == PHOTOS_WINDOW_MODE_FAVORITES