[nautilus] sidebar: don't allow selecting headers

[Cosimo Cecchi <cosimoc src gnome org>]

commit 8277ddc798fc78793364b54444fa53e9a287b5cc
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Thu Aug 26 16:09:44 2010 +0200

    sidebar: don't allow selecting headers

 src/nautilus-places-sidebar.c |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)
---
diff --git a/src/nautilus-places-sidebar.c b/src/nautilus-places-sidebar.c
index 70434bf..1abeba6 100644
--- a/src/nautilus-places-sidebar.c
+++ b/src/nautilus-places-sidebar.c
@@ -2807,6 +2807,28 @@ trash_state_changed_cb (NautilusTrashMonitor *trash_monitor,
 	bookmarks_check_popup_sensitivity (sidebar);
 }
 
+static gboolean
+tree_selection_func (GtkTreeSelection *selection,
+		     GtkTreeModel *model,
+		     GtkTreePath *path,
+		     gboolean path_currently_selected,
+		     gpointer user_data)
+{
+	GtkTreeIter iter;
+	PlaceType row_type;
+
+	gtk_tree_model_get_iter (model, &iter, path);
+	gtk_tree_model_get (model, &iter,
+			    PLACES_SIDEBAR_COLUMN_ROW_TYPE, &row_type,
+			    -1);
+
+	if (row_type == PLACES_HEADING) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
 static void
 icon_cell_renderer_func (GtkTreeViewColumn *column,
 			 GtkCellRenderer *cell,
@@ -3035,6 +3057,11 @@ nautilus_places_sidebar_init (NautilusPlacesSidebar *sidebar)
 	selection = gtk_tree_view_get_selection (tree_view);
 	gtk_tree_selection_set_mode (selection, GTK_SELECTION_BROWSE);
 
+	gtk_tree_selection_set_select_function (selection,
+						tree_selection_func,
+						sidebar,
+						NULL);
+
 	gtk_tree_view_enable_model_drag_source (GTK_TREE_VIEW (tree_view),
 						GDK_BUTTON1_MASK,
 						nautilus_shortcuts_source_targets,