[nautilus-sendto] Fix dynamic changes in "can-send" from plugins

[Bastien Nocera <hadess src gnome org>]

commit b7ec5f1af3c40720a9c9a59a3e1b5b1f8f29750a
Author: Bastien Nocera <hadess hadess net>
Date:   Fri Aug 27 20:33:16 2010 +0100

    Fix dynamic changes in "can-send" from plugins
    
    When the plugin changes its own "can-send" status, apply it
    straight away if the page is the selected one. Otherwise it
    will take going to another page and back for it to be applied.

 src/nautilus-sendto-command.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/nautilus-sendto-command.c b/src/nautilus-sendto-command.c
index 899cc94..9258af2 100644
--- a/src/nautilus-sendto-command.c
+++ b/src/nautilus-sendto-command.c
@@ -177,10 +177,16 @@ can_send_cb (NautilusSendtoPlugin *plugin,
 				    -1);
 		if (selected_id != NULL &&
 		    g_str_equal (id, selected_id) != FALSE) {
+			GtkTreeSelection *selection;
+
 			g_free (selected_id);
 			gtk_list_store_set (GTK_LIST_STORE (model), &iter,
 					    COLUMN_CAN_SEND, can_send,
 					    -1);
+
+			selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (nst->options_treeview));
+			if (gtk_tree_selection_iter_is_selected (selection, &iter))
+				gtk_widget_set_sensitive (nst->send_button, can_send);
 			return;
 		}
 		g_free (selected_id);