Feature request: allow key roll-over for faster typing

[jorissteyn]

When typing, it's not uncommon to press a key before releasing the previously pressed key. For normal people this is not a problem. But when using the space bar as a modifier it becomes a limiting factor when typing fast. The at-home-modifier patch of the x input driver (xf86-input-evdev) has an option 'AhmDelay' which allows key roll-over without triggering the "fake" modifier state.

When enabled, it works like this:

• press space
• press t
• release t
• release space

==> produces fake modifier + t

• press space
• press t
• release space
• release t

==> produces ordinary space followed by ordinary t

I believe users of XHK would benefit greatly by having such an option, especially when using the mirrored layout only while holding a cup of coffee!

[kbingham]

Hi @jorissteyn.

Thanks for your input! - It's a long time since I worked on xHK (I recovered from my broken arm, so I guess I haven't paid it much attention)

I think I recall that I had set the roll-over, because when I was typing - I often (by typing too fast perhaps) would 'press space, press t, release space' release t' when I was expecting a y.

Certainly this could be improved or be configurable. I didn't realise I had any users at the moment - so to get two reports on here in one weekend is quite motivating to do some updates :)

I wasn't aware of the at-home-modifier project, so I'll take a look and see how they have managed these intricacies. The timing, and I guess providing configurable options to people are the key.

I'll take a look (hopefully this week) and see what I can get done.

Regards

Kieran