<< gtk documentation
gtk_file_chooser_get_current_folder_uri ()

Gets the current folder of chooser as an URI.

Note that this is the folder that the file chooser is currently displaying ...
which is not the same as the currently-selected folder if the chooser is in
GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER mode ... to get the currently-selected
folder in that mode, use gtk_file_chooser_get_uri() as the usual way to get the
selection.
>>

<< offapi documentation
XFolderPicker

getDisplayDirectory:
    Returns the root directory that the FolderPicker is showing.
getDirectory
    Returns the selected directory
>>

so  getDisplayDirectory <-> gtk_file_chooser_get_current_folder_uri
and getDirectory <-> gtk_file_chooser_get_uri

Change-Id: Iaa5ab16a250cd59fe5e8bd02149298eef6d1dec2