Path control with auto-complete (similar to Terminal)

[TiTou]

When typing a path in the Terminal (Linux, Windows or macOS) hitting the table key does an auto-complete, this is extremely useful.

I wish the Path control and - let's dream - the path constant would behave the same.

It's probably only applicable to absolut path values.

I've made a QControl that does that, it's a bit basic but it does help, I might post it GitHub if there is interest.

[Christina_R]

The problem I see is that the Tab key is already used to move focus around the controls on the panel. 

[fefepeto_kb]

Maybe the Ctrl+Down Arrow could be used to navigate "into" the path control for using the tab autofill.

To further enhance the user experience a small indicator could appear at the edge of the control/constant to indicate the autofill mode.

And, to be backward compatible this autofill feature could be toggled as a global option, maybe per user once that feature is implemented, and its default shall be off.

[TiTou]

@Christina_R

I see, then do the auto-complete only if the path control has the "skip this control when tabbing" enabled

[Christina_R]

Removing a control from the tab order (i.e., skip when tabbing) has severe consequences on the usability and accessibility of a UI.

Entering a "mode" for the path control (e.g., Ctrl+Down Arrow) seems feasible, but I think it would be hard to make that mode easily discoverable.

[wiebe@CARYA]

The path could go into autocomplete mode after typing anything.

Enter or escape could bring it back to tab order mode.

Still not ideal, but maybe a compromise.