Comment 2 for bug 710414

I'm not sure I get the problem:

1. In the beginning I used "GtkFileChooserButton" but I had some problems:
 - There is not way to set an empty value (like never set). This pose problems if you open the dialog and just save it. You may end up with a snapshots folder by default.
 - A simple mouse scroll by error can change it and I think this is dangerous

2. I don't want it editable (at least for now) so can select only valid folders (the dialog allow you to create new folders.

3. I'm not sure about a label but using a read-only editbox allow you to select the text, scroll if it does not feet.