[arianvanp]

Recently I started playing with https://github.com/ajnsit/concur-documentation/blob/master/R... which has been the most refreshing UI paradigm i've used in a while. and it reminds me a lot of this ImGUI approach, but behind the scenes it uses coroutines instead.

The idea is that a button is a UI element that _blocks_ until an event is fired. You can then compose elements in time like:

    button "hey" >> label "clicked"

which is a program that displays a button, you click it, the button goes away and the text "clicked appears"

Or you can compose programs in space:

    (button "hey" <> label "not clicked") 

this is a program that displays both a button, and a label at the same time.

Now, by combining both space and time, we can create a program that changes the label when clicking as follows:

    program = (button "toggle" <> label "off") >> (button "toggle" <> label "on") >> program

This is an application that toggles a label on and off when you press a button. (Note that the definition is recursive)