Display fullpath of file in statusbar when hovering on recent file menu item

[diepfote]

Where you thinking of something like this? https://github.com/alexandervdm/gummi/pull/92#issuecomment-549133853

[alexandervdm]

The behavior is correct now, but aside from some minor styling issues I see you retrieve the path data from the tooltip. Makes sense, but I'd like to have this mechanism replace the tooltip :) I'm anxious to get 0.8.0 out there, so I think for now it's better to revisit this when I've refactored the document/tab data structure.

[diepfote]

I found it to be the least messy way to retrieve the filename. Ping me if you have any ideas on how you want it to be done.