[nautilus-actions] NactIEnvironmentTab: check that we have alive GtkWidgets

[Pierre Wieser <pwieser src gnome org>]

commit 4ae2c4ab63b0f27fbacb84a51ef370394b1bf03f
Author: Pierre Wieser <pwieser trychlos org>
Date:   Thu Jan 12 23:49:16 2012 +0100

    NactIEnvironmentTab: check that we have alive GtkWidgets

 ChangeLog                        |    4 ++++
 src/nact/nact-ienvironment-tab.c |   26 +++++++++++++++-----------
 2 files changed, 19 insertions(+), 11 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index e39d30b..d782cb2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2012-01-12 Pierre Wieser <pwieser trychlos org>
 
+	* src/nact/nact-ienvironment-tab.c
+	(dispose_selection_count_combobox): Check that we have a GtkComboBox.
+	(dispose_desktop_listview): Check that we have a GtkTreeView.
+
 	* src/nact/nact-icommand-tab.c
 	(legend_dialog_hide): Check that legend_dialog is a GtkWindow.
 
diff --git a/src/nact/nact-ienvironment-tab.c b/src/nact/nact-ienvironment-tab.c
index e6aa4f9..7ca2649 100644
--- a/src/nact/nact-ienvironment-tab.c
+++ b/src/nact/nact-ienvironment-tab.c
@@ -913,12 +913,14 @@ set_selection_count_selection( NactIEnvironmentTab *instance, const gchar *ope,
 static void
 dispose_selection_count_combobox( NactIEnvironmentTab *instance )
 {
-	GtkComboBox *combo;
+	GtkWidget *combo;
 	GtkTreeModel *model;
 
-	combo = GTK_COMBO_BOX( base_window_get_widget( BASE_WINDOW( instance ), "SelectionCountSigneCombobox" ));
-	model = gtk_combo_box_get_model( combo );
-	gtk_list_store_clear( GTK_LIST_STORE( model ));
+	combo = base_window_get_widget( BASE_WINDOW( instance ), "SelectionCountSigneCombobox" );
+	if( GTK_IS_COMBO_BOX( combo )){
+		model = gtk_combo_box_get_model( GTK_COMBO_BOX( combo ));
+		gtk_list_store_clear( GTK_LIST_STORE( model ));
+	}
 }
 
 static void
@@ -1018,15 +1020,17 @@ setup_desktop_listview( NactIEnvironmentTab *instance, GSList *show )
 static void
 dispose_desktop_listview( NactIEnvironmentTab *instance )
 {
-	GtkTreeView *listview;
+	GtkWidget *listview;
 	GtkTreeModel *model;
 	GtkTreeSelection *selection;
 
-	listview = GTK_TREE_VIEW( base_window_get_widget( BASE_WINDOW( instance ), "EnvironmentsDesktopTreeView" ));
-	model = gtk_tree_view_get_model( listview );
-	selection = gtk_tree_view_get_selection( listview );
-	gtk_tree_selection_unselect_all( selection );
-	gtk_list_store_clear( GTK_LIST_STORE( model ));
+	listview = base_window_get_widget( BASE_WINDOW( instance ), "EnvironmentsDesktopTreeView" );
+	if( GTK_IS_TREE_VIEW( listview )){
+		model = gtk_tree_view_get_model( GTK_TREE_VIEW( listview ));
+		selection = gtk_tree_view_get_selection( GTK_TREE_VIEW( listview ));
+		gtk_tree_selection_unselect_all( selection );
+		gtk_list_store_clear( GTK_LIST_STORE( model ));
+	}
 }
 
 static IEnvironData *
@@ -1047,7 +1051,7 @@ get_ienviron_data( NactIEnvironmentTab *instance )
 static void
 on_instance_finalized( gpointer user_data, NactIEnvironmentTab *instance )
 {
-	static const gchar *thisfn = "nact_iaction_tab_on_instance_finalized";
+	static const gchar *thisfn = "nact_ienvironment_tab_on_instance_finalized";
 	IEnvironData *data;
 
 	g_debug( "%s: instance=%p, user_data=%p", thisfn, ( void * ) instance, ( void * ) user_data );