7 Humble GUIs

An implementation of 7 GUIs in Clojure + HumbleUI.

Built using lilactown/humble-starter.

GUIs

GUI 1: Counter

STATUS: Complete

GUI 2: Temperature converter

STATUS: Complete

GUI 3: Flight booker

STATUS: Complete

GUI 4: Timer

STATUS: Complete

GUI 5: CRUD

STATUS: Complete

GUI 6: Circle drawer

STATUS: Complete

GUI 7: Cells

STATUS: WIP

Running

To run each GUI, pass the ./script/run.sh script the number you want to run.

# run the "Counter" GUI
./script/run.sh 1

# run the "Timer" GUI
./script/run.sh 4

Development

To start a REPL (including a minimal nREPL server), you can run ./scripts/nrepl.sh. For Editor tooling, see below section.

To run each GUI, evaluate the namespace (e.g. town.lilac.humble.app.gui-1) through the REPL. To see changes, evaluate it again.

IntelliJ/Cursive

Create a REPL for HumbleUI apps as you would for any other application:

• Create a Local REPL configuration, and accept all the defaults
• Run that newly created REPL

CIDER

TL;DR: Customize the jack in command, delete the :cider/nrepl alias at the end of the command and replace it with :dev:cider

If you use an editor like Emacs or Calva which integrates using CIDER, you can customize the jack-in command to work with your HumbleUI app.

NOTE: The default jack-in command will not work, since we need to start the HumbleUI app on a different thread than the nREPL server. By default, the nREPL server will start and then you would evaluate commands via this connection, but this will not work when starting the HumbleUI app.

To ensure that you are loading the correct version of nREPL and CIDER, we start by running the jack-in command but customizing it. In Emacs, this is C-u M-x cider-jack-in. An example of what the default command looks like:

/opt/homebrew/bin/clojure -Sdeps '{:deps {nrepl/nrepl {:mvn/version "1.0.0"} cider/cider-nrepl {:mvn/version "0.28.6"}} :aliases {:cider/nrepl {:main-opts ["-m" "nrepl.cmdline" "--middleware" "[cider.nrepl/cider-middleware]"]}}}' -M:cider/nrepl

For our purposes, the user ns has a -main function which handles all of the app and nREPL server initialization. The only thing we need to replace the call to CIDER's main with our own and pass in the middlewares to it.

Below, we show the command after we delete the use of the :cider/nrepl alias and replace it with the :dev:cider alias configured in our deps.edn, which calls our custom -main function wiht the CIDER middlewares

/opt/homebrew/bin/clojure -Sdeps '{:deps {nrepl/nrepl {:mvn/version "1.0.0"} cider/cider-nrepl {:mvn/version "0.28.6"}} :aliases {:cider/nrepl {:main-opts ["-m" "nrepl.cmdline" "--middleware" "[cider.nrepl/cider-middleware]"]}}}' -M:dev:cider

Credit

A lot of this code was copied and then modified from the HumbleUI codebase itself, as well as humble-dec and humble-animations. Thanks to @tonsky for developing HumbleUI and releasing so many cool examples, and @oakmac for showing me some cool stuff too!

License & Copyright

Licensed under MIT. Copyright Will Acton 2022.