Cell resizing

[vaer-k]

I'd like to be able to resize cells and cell outputs by dragging the bottom of the frame.

[larshei]

Just came here to ask if this is already possible.
Although my solution was a bit different, I simply wanted to be able to have an option like

 -------------------------------
| [ ] Hide Code Blocks          |
| [ ] Hide Code block outputs.  |
| [ ] Hide Markdown             |
 -------------------------------

Although I am not quite sure how to not hide Vega/Kino outputs with this method,
so maybe even a simple "collapse" option per block would be great.

Background: I am currently using livebook to analyse some data, and depending on who I am showing this to, code and results (other than graphs) may not be of interest.

If someone could give me a small introduction to the projects code, I'd be happy to contribute.

[jonatanklosko]

Those shortcuts would conflict with the z-alone shortcut, I think a single shortcuts for toggling is fine. But adding more options to the menu sounds good!

[josevalim]

The idea is to remove the current z shortcut, yeah. :)

[jonatanklosko]

The zen mode doesn't only toggle content though, it also removes action/insert buttons and shrinks spacing.

[josevalim]

Right, I was thinking we could make all of them part of the zen mode. When you enter the zen mode, we already have the option of hiding markdown and then optionally outputs. So we are almost there. The idea is that you stay in zen mode while you are hiding something.

[larshei]

Alright so that PR might be a nice place to start for me.
I will have a look at it, probably during the weekend, and see if I understand how things can be adjusted.