[nautilus] files-view: extract function for handling file changes

[Carlos Soriano Sánchez <csoriano src gnome org>]

commit cb8f94e8ae16f2dea8dcf8cf7767e5fffc752e8c
Author: Carlos Soriano <csoriano gnome org>
Date:   Mon Mar 14 22:12:54 2016 +0100

    files-view: extract function for handling file changes
    
    We were handling this case inside the same function that emits the
    signal.
    
    We just want to react to the signal, not to do everything inside the
    function that happen to be the one emitting the signal.

 src/nautilus-files-view.c |   15 ++++++++++++++-
 1 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/src/nautilus-files-view.c b/src/nautilus-files-view.c
index 76326f2..69bab53 100644
--- a/src/nautilus-files-view.c
+++ b/src/nautilus-files-view.c
@@ -3586,6 +3586,15 @@ process_new_files (NautilusFilesView *view)
 }
 
 static void
+on_end_file_changes (NautilusFilesView *view)
+{
+        /* Addition and removal of files modify the empty state */
+        check_empty_states (view);
+        /* If the view is empty, zoom slider and sort menu are insensitive */
+        nautilus_files_view_update_toolbar_menus (view);
+}
+
+static void
 process_old_files (NautilusFilesView *view)
 {
         GList *files_added, *files_changed, *node;
@@ -3616,7 +3625,6 @@ process_old_files (NautilusFilesView *view)
                 }
 
                 g_signal_emit (view, signals[END_FILE_CHANGES], 0);
-                check_empty_states (view);
 
                 if (files_changed != NULL) {
                         selection = nautilus_view_get_selection (NAUTILUS_VIEW (view));
@@ -8107,6 +8115,11 @@ nautilus_files_view_init (NautilusFilesView *view)
         g_signal_connect (view->details->zoom_level_scale, "value-changed",
                           G_CALLBACK (zoom_level_changed), view);
 
+        g_signal_connect (view,
+                          "end-file-changes",
+                          G_CALLBACK (on_end_file_changes),
+                          view);
+
         g_object_unref (builder);
 
         /* Main widgets */