[haiku] Re: Caps Lock?
- From: Ryan Leavengood <leavengood@xxxxxxxxx>
- To: haiku@xxxxxxxxxxxxx
- Date: Thu, 13 Dec 2012 12:42:25 -0500
On Thu, Dec 13, 2012 at 2:54 AM, Pete Goodeve <pete.goodeve@xxxxxxxxxxxx> wrote:
>
> However, unless you've seen something that I haven't, I don't think
> it's possible to suppress CapsLock with a filter. The thing is, all the
> keymapping is handled straight in the KeyboardInputDevice, where
> it keeps its own copy of the modifier state. The only input I see to
> the device is directly from the ioctl to the driver -- no way to tell it to
> change its state from a filter.
>
> The only way I can think of for a filter to handle this would be for it
> to revert every shifted character that came through if CapsLock is on,
> but that's *definitely* a hack!
I guess I wasn't clear when I referred to that ticket. Toward the
bottom of the ticket is a comment from myself where I suggest a
theoretical idea for how to solve this. The filter can watch for
B_MODIFIERS_CHANGED and check the mask for caps lock being on, and if
it is (and wasn't already on, the state probably needs to be tracked)
it can use the set_keyboard_locks function to turn it right back off.
I'm not 100% sure this will work, but it sounds reasonable in theory.
Though just adding this as a feature inside the input_server might be nice too.
--
Regards,
Ryan
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