[gnac] Clicking on an empty line in the treeview has the same effect as clicking on 'add'.

[Benoît Dupasquier <bdupasqu src gnome org>]

commit d4b0e3018e51d7755df7039a3bb63bb3dbe9f8e6
Author: Benoît Dupasquier <bdupasqu src gnome org>
Date:   Sat Aug 22 20:20:59 2009 +0200

    Clicking on an empty line in the treeview has the same effect as clicking on 'add'.

 src/gnac-file-list.c |   38 ++++++++++++++++++++------------------
 1 files changed, 20 insertions(+), 18 deletions(-)
---
diff --git a/src/gnac-file-list.c b/src/gnac-file-list.c
index d05ebed..b1c3e97 100644
--- a/src/gnac-file-list.c
+++ b/src/gnac-file-list.c
@@ -692,31 +692,33 @@ gnac_file_list_on_button_pressed(GtkWidget      *treeview,
                                  GdkEventButton *event, 
                                  gpointer        user_data)
 {  
-  GtkTreeRowReference *reference;
-
-  if (event->type == GDK_BUTTON_PRESS && event->button == 3) {
-
-    if (gnac_file_list_count_selected_rows() <= 1) {
-      GtkTreePath *path;
-
-      if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(treeview),
-            (gint) event->x, (gint) event->y,
-            &path, NULL, NULL, NULL)) 
-      {
+  gboolean ret = FALSE;
+  if (event->type == GDK_BUTTON_PRESS) {
+    gboolean expanded;
+    GtkTreePath *path;
+
+    expanded = gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(treeview),
+        (gint) event->x, (gint) event->y, &path, NULL, NULL, NULL);
+
+    if (event->button == 1 && !expanded) {
+      gnac_on_ui_add_cb(treeview, NULL);
+      ret = TRUE;
+    } else if (event->button == 3) {
+      if (expanded && gnac_file_list_count_selected_rows() <= 1) {
+        GtkTreeRowReference *reference;
         reference = gtk_tree_row_reference_new(model, path);
-        
         gnac_file_list_select_row(reference);
-
         gtk_tree_row_reference_free(reference);
-        gtk_tree_path_free(path);
       }
+
+      gnac_ui_show_popup_menu(treeview, event, user_data);
+      ret = TRUE;
     }
-    
-    gnac_ui_show_popup_menu(treeview, event, user_data);
-    return TRUE;
+
+    gtk_tree_path_free(path);
   }
 
-  return FALSE;
+  return ret;
 }