Path bar sometimes flickers when changing folders

[alice-mkh]

See #1061 (comment)

When changing a folder, path bar flickers a bit. It's caused by the fact it's set to insensitive while the next folder loads. It makes sense when the folder is remote, but the loading usually happens fast enough on local locations to last just a couple frames.

[alice-mkh]

I wonder if path bar needs to be insensitive at all in this case. Back and forward buttons still work just fine, so changing folders while loading works. Also, file chooser dialog and Nautilus don't do it. :)

[jeremypw]

Local folders can be slow to load and display if they contain 10000's of files so we would need to test the proposed change carefully. It may be possible to make the pathbar unreactive without changing its appearance.

[alice-mkh]

Sure, I just wonder if it needs to be insensitive at all, with or without appearance change. Because otherwise you also need to disable back/forward buttons and sidebar, since you can use them for changing location as well.

[jeremypw]

Milestone now passed ... Retargeting to 7.2.0

[jeremypw]

Flickering only seems to occur if the navigation occurs by clicking on the view. Clicking on a breadcrumb or using <Alt>Arrow shortcuts does not produce flicker.