Recommended way to hook onto keymap and modifiers events

[axelkar]

I'm writing an EIS implementation for Niri. What's the recommended way to hook onto the keymap and modifiers events, when the event target (that only copies the events) isn't a Wayland client?

Not sure how the receiver context (EI context for InputCapture portal) will interact with this.

A few ideas come to mind:

• Wrap KeyboardGrab
• Diff before/after every call to KeyboardHandle
• Implement code for hooks in Smithay

[Drakulix]

Possibly relevant: https://github.com/Smithay/smithay/pull/1388