Use key files for tracking widget states.

Each EShellView now maintains a GKeyFile for recording disposable widget
state such as tree view path expansion, scroll bar positions, combo box
selections, etc.  The EShellView records changes to the key file to
~/.evolution/<shell-backend>/config/state, and automatically restores
the GKeyFile at startup.

Currently only the mailer uses the key file, but it's intended to serve
all shell views.  It replaces the use of Camel "cmeta" files, as well as
"et-expanded-*" and "folder-tree-expand-state.xml" files.

Also, the mailer's folder tree model now includes a column for tracking
which sidebar folders are expanded.  Folder tree widgets appearing in
dialog windows can copy the sidebar's expanded state using
em_folder_tree_clone_expanded().

1 files changed, 4 insertions, 3 deletions

diff --git a/mail/em-folder-utils.h b/mail/em-folder-utils.h
index db7ddb82fd..5d1333e9d0 100644
--- a/mail/em-folder-utils.h
+++ b/mail/em-folder-utils.h
@@ -40,14 +40,15 @@ gint		em_folder_utils_copy_folders	(CamelStore *fromstore,
 /* FIXME These API's are really busted.  There is no consistency and
  *       most rely on the wrong data. */
 
-void		em_folder_utils_copy_folder	(CamelFolderInfo *folderinfo,
-						 gint delete);
+void		em_folder_utils_copy_folder	(EMFolderTreeModel *model,
+						 CamelFolderInfo *folderinfo,
+						 gboolean delete);
 
 void		em_folder_utils_delete_folder	(CamelFolder *folder);
 void		em_folder_utils_rename_folder	(CamelFolder *folder);
 
 void		em_folder_utils_create_folder	(CamelFolderInfo *folderinfo,
-						 EMFolderTree * emft,
+						 EMFolderTree *emft,
 						 GtkWindow *parent);
 
 const gchar *	em_folder_utils_get_icon_name	(guint32 flags);