Comment 1 for bug 396666

It's very limited in scope right now. The intention is to reuse a smart widget being developed as part of QBzr. As of time of writing though, that widget isn't in a released version of the QBzr trunk.

The double-click action is explicitly "open". I feel that's the best default because it does the right thing for more types of files, e.g. when I what to browse the latest doc by double-clicking on doc/index.html in bzr.dev. To edit, single-click and select Edit.