[Usability] Pathbuttons-Field

Hello!

With the file dialog issues coming up again and again, I suddenly
had this idea to combine a textfield with path-buttons:

http://xs67.xs.to/pics/06066/text-path_a_b.png

The file list below it should be filtered for the string as it's
entered, or browser style autocompletion could be shown attached
below the field.

Entering / after the name of an existing dir would turn that part
of the path into a button. "../" (maybe even "cd ../") could also
work.

Wildcards ... not discoverable, but no stumbling block and a
blessing to those who do work on the console sometimes.

Backspace would work like on characters, going one level up here.

A / as first character entered might be a good way to allow
input of full pathes.


The upper version are just slightly narrower buttons in a slightly
higher field. The lower version should remind of the / path
seperator.


I would like feedback and suggestions on possible next steps.


Cheers,
Thorsten Wilms
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