[nautilus] Add a method to move bookmarks in the list.

[Cosimo Cecchi <cosimoc src gnome org>]

commit 5b80a0e60516518f359596b5d6285b241d7c6cad
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Sun Apr 11 15:02:37 2010 +0200

    Add a method to move bookmarks in the list.
    
    So that moving a bookmark in the list doesn't trigger two
    'contents-changed' signals in a row.

 src/nautilus-bookmark-list.c |   35 +++++++++++++++++++++++++++++++++++
 src/nautilus-bookmark-list.h |    3 +++
 2 files changed, 38 insertions(+), 0 deletions(-)
---
diff --git a/src/nautilus-bookmark-list.c b/src/nautilus-bookmark-list.c
index 17c0545..67be610 100644
--- a/src/nautilus-bookmark-list.c
+++ b/src/nautilus-bookmark-list.c
@@ -317,6 +317,41 @@ nautilus_bookmark_list_delete_item_at (NautilusBookmarkList *bookmarks,
 }
 
 /**
+ * nautilus_bookmark_list_move_item:
+ *
+ * Move the item from the given position to the destination.
+ * @index: the index of the first bookmark.
+ * @destination: the index of the second bookmark.
+ **/
+void
+nautilus_bookmark_list_move_item (NautilusBookmarkList *bookmarks,
+				  guint index,
+				  guint destination)
+{
+	GList *bookmark_item;
+
+	if (index == destination) {
+		return;
+	}
+
+	bookmark_item = g_list_nth (bookmarks->list, index);
+	bookmarks->list = g_list_remove_link (bookmarks->list,
+					      bookmark_item);
+
+	if (index < destination) {
+		bookmarks->list = g_list_insert (bookmarks->list,
+						 bookmark_item->data,
+						 destination - 1);
+	} else {
+		bookmarks->list = g_list_insert (bookmarks->list,
+						 bookmark_item->data,
+						 destination);
+	}
+
+	nautilus_bookmark_list_contents_changed (bookmarks);
+}
+
+/**
  * nautilus_bookmark_list_delete_items_with_uri:
  * 
  * Delete all bookmarks with the given uri.
diff --git a/src/nautilus-bookmark-list.h b/src/nautilus-bookmark-list.h
index 5bcb114..f611681 100644
--- a/src/nautilus-bookmark-list.h
+++ b/src/nautilus-bookmark-list.h
@@ -74,6 +74,9 @@ void                    nautilus_bookmark_list_insert_item         (NautilusBook
 guint                   nautilus_bookmark_list_length              (NautilusBookmarkList   *bookmarks);
 NautilusBookmark *      nautilus_bookmark_list_item_at             (NautilusBookmarkList   *bookmarks,
 								    guint                   index);
+void                    nautilus_bookmark_list_move_item           (NautilusBookmarkList *bookmarks,
+								    guint                 index,
+								    guint                 destination);
 void                    nautilus_bookmark_list_set_window_geometry (NautilusBookmarkList   *bookmarks,
 								    const char             *geometry);
 const char *            nautilus_bookmark_list_get_window_geometry (NautilusBookmarkList   *bookmarks);