Map keyboard key to mouse movemennt

[dnikic]

I would like to use this app to move my cursor with vim binding + meta-key.
Joystick to mouse movement is implemented, but i didn't find key to mouse movement, is that present or should I try to write something up a send a Pull Request?

[sezanzeb]

Something like that is not present.

Sure, contributions are welcome! I have tried my best to make the code very documented and clear, but I guess it still got quite complicated here and there. If something is confusing, feel free to ask.

Using joysticks to move the mouse is implemented via:

• def should_map_as_btn, which looks at the configuration (mapping.get('gamepad.joystick.left_purpose')) to figure out if an event may be used to map to a button at all. If a joystick is used as mouse it returns False
• def run of event_producer.py, which keeps moving the cursor as long as the joystick is not released. A held down button/joystick will not report new events, so some sort of loop was needed for that. The debouncing stuff in there has nothing to do with it.
• def is_handled and def nofify also of event_producer.py, which is used to consume joystick events. In this case it would instead accept the events that map to cursor movements.

I hope the existing architecture can support that feature without too much struggle. What do you think of using keywords like mouse_left, mouse_up, etc. for the mapping? But it would not be possible to control the mouse speed by just using keywords.

Please also write tests for your changes

[dnikic]

why do you need that btw, don't you have a mouse on the computer?

Developing a hand injure from using bad mice got me interested in ergonomics while programming.

[sezanzeb]

I guess I would prefer to display a slider if mouse_* mappings are used, basically similar to the existing sliders.

That can be also added later on in a separate pull request, whatever fits you

[sezanzeb]

I think should_map_as_btn doesn't need to be modified, only is_handled

[sojusnik]

why do you need that btw, don't you have a mouse on the computer?

Developing a hand injure from using bad mice got me interested in ergonomics while programming.

Do you know keynav? Could be handy in your situation.

[dnikic]

Do you know keynav? Could be handy in your situation.
Thanks, ill look it up.

[sezanzeb]

I just realized it would be fairly easy to add via macros. You can try it on the https://github.com/sezanzeb/key-mapper/tree/write-macro branch. Took 20 minutes or something to implement

write could be used to inject all sorts of events via the keyboard. scrolling, gamepads, whatever. Maybe I'll rename it to e as in "event". w is already taken by "wait". I abbreviate all of them due to the space constraints. It would be possible to make writing that stuff easier via constants (see https://github.com/torvalds/linux/blob/master/include/uapi/linux/input-event-codes.h)

what do you think?

mouse(up, 4) might be a handy readable shortcut that could be implemented.

And via that method it is possible to control the mouse speed as well

[dnikic]

Even without the caps lock preset switching, this is a much better and ergonomic solution than the default mouse keys feature in Gnome.
In my opinion, this app with a mouse preset should be a default app in an OS.
Great job!

[sezanzeb]

The only missing feature i saw is having mouse() in the mapping drop-down.

it's there now

[dnikic]

Looking great!
Ive found that scroll down doesn't seem to e working (at least on my Ubuntu 20.04 system).

Would it be possible to apply a current preset and reset to default?
If not it this behavior may be accomplished by checking autoload and setting a OS binding to running and kill the key-mapper app.

[sezanzeb]

Would it be possible to apply a current preset and reset to default?

OS binding

??

[dnikic]

You have already answered my first question, with

the injection daemon doesn't support any shortcuts yet.

By OS binding i meant setting up a hotkey in Gnome or other DE.

[cutbypham]

• Video demo: https://www.youtube.com/watch?v=pKtIrQsbKnQ
• Hold Tab

• h j k l moving cursor left down up right (vim) || hold tab + space + hjkl speed is slow down
• w button left, e button middle, r button right
• ; scroll down, p scroll up, i scroll left, o scroll right

I use qwerty layout

• With this basic ideas you can use input remapper or the software you can think can do with action
• Input remapper config: https://github.com/thuanowa/dotfiles/blob/main/input-remapper/presets/SEMICO%20%20%20USB%20Gaming%20Keyboard%20/thuan_fly_key.json