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input-remapper/readme/development.md
sezanzeb 62d79e8aa7 mapping joysticks like a d-pad
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Development

Contributions are very welcome, I will gladly review and discuss any merge requests.

Roadmap

  • show a dropdown to select valid devices
  • creating presets per device
  • renaming presets
  • show a mapping table
  • make that list extend itself automatically
  • read keycodes with evdev
  • inject the mapping
  • keep the system defaults for unmapped buttons
  • button to stop mapping and using system defaults
  • highlight changes and alert before discarding unsaved changes
  • automatically load presets on login for plugged in devices
  • make sure it works on wayland
  • support timed macros, maybe using some sort of syntax
  • add to the AUR, provide .deb file
  • basic support for gamepads as keyboard and mouse combi
  • executing a macro forever while holding down the key using h
  • mapping D-Pad directions as buttons
  • configure joystick purpose and speed via the GUI
  • support for non-GUI TTY environments with a command to stop and start
  • start the daemon in such a way to not require usermod
  • mapping a combined button press to a key
  • add "disable" as mapping option
  • mapping joystick directions as buttons, making it act like a D-Pad
  • mapping mouse wheel events to buttons
  • automatically load presets when devices get plugged in after login (udev)
  • configure locale for preset to provide a different set of possible keys
  • user-friendly way to map btn_left

Tests

pylint keymapper --extension-pkg-whitelist=evdev
sudo pip install . && coverage run tests/test.py
coverage combine && coverage report -m

To read events, evtest is very helpful. Add -d to key-mapper-gtk to get debug output.

Releasing

Install dpkg or ssh/login into a debian/ubuntu environment

./scripts/build.sh

This will generate key-mapper/deb/key-mapper-0.5.0.deb

Badges

sudo pip install git+https://github.com/jongracecox/anybadge
./scripts/badges.sh

New badges, if needed, will be created in readme/ and they just need to be commited.

Files

service

  • bin/key-mapper-service executable that starts listening over dbus for commands and runs the injector when needed. It shouldn't matter how it is started as long as it manages to start without throwing errors.

gui

  • bin/key-mapper-gtk the executable that starts the gui. It also sends messages to the service via dbus
  • data/key-mapper.policy is needed to show a password promt when starting the gui for sudo rights
  • data/key-mapper.desktop is the entry in the start menu

cli

  • bin/key-mapper-control is an executable to send messages to the service via dbus. It can be used to start and stop injection without a gui.

systemd

  • data/key-mapper.service starts key-mapper-service automatically on boot, systemctl commands are possible.
  • data/keymapper.Control.conf is needed to connect to dbus services started by systemd from other applications

user stuff

  • key-mapper-autoload.desktop executes on login and tells the systemd service to stop injecting (possible the presets of another user) and to inject the users autoloaded presets instead (if any are configured)

Resources

PyGObject API Reference python-evdev