Firefox

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Plugin: ?how-to: Intercept keystrokes (feddit.de)

submitted 1 year ago by scmer@feddit.de to c/firefox@lemmy.ml

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I seeked into the API in order to write a plugin for myself. In order to aid my workflow I need to listen to two keystrokes closely followed.

Apparently there are only hacks available. I want to fire-and-forget about my plugin as long as the API to command firefox stays consistent.

I did not attempt to write any code (and any JS code, honestly that is) yet. Simply because I did not get that requirement addressed by the official API /& documentation.

Recompiling firefox would be the least favorable option; But I would still be hooked if it would enable me to observe keystrokes on my own.

As an practical example: Pressing Shift two times in sequence and within 100 ms should enable me to eat the event.

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[–] treasure@lemmy.blahaj.zone 2 points 1 year ago

To detect two keystrokes closely followed, you can use EventListeners for the onkeyup/onkeydown event. In combination with a variable that determines if the key was already pressed within the last 100 ms and a setTimeout call that resets that variable after 100 ms, it should be fairly easy to accomplish.