Add word wrap feature

[ncarchedi]

Hi Jeff:

I'm using shinyAce for a project of mine and word wrapping would really be useful. I don't know a lick of javascript, but I was able to hack this together based on your existing code and the ace how-to guide. It seems to work well on my Mac.

Please note that I haven't updated any documentation, since I'm running roxygen2 v4.0.0 and I can't seem to prevent it from rewriting all of your docs.

Comments/criticism welcome.

Cheers,
Nick

[ncarchedi]

@trestletech -- I'm sure you're swamped with more important things. I'm just curious if you intend to merge this, since that will determine if I use the word wrap feature in my shiny app. Thanks!

[trestletech]

Hey! Sorry it took a bit to get back to you.

This looks great; thanks for adding it. I see just a couple of things that we'd need to add before I merge:

1. You finished the R side of the update function with word wrapping, but we'll need to teach JavaScript what it means for word wrapping to be enabled. I'm not actually familiar with this feature in Ace, so I'm not sure what the call would be, but we'd just need to add a conditional like this one: https://github.com/trestletech/shinyAce/blob/master/inst/www/shinyAce.js#L43 to update word wrapping dynamically in the editor.
2. We'll need to update the docs. I use roxygen2 for this which is bundled pretty cleanly into RStudio's Packaging workflow, if you happen to be using that. If you regenerate the docs, it will update a couple of man files with the new parameters you added so others will know about them.

If you have a chance to do these, I'd be happy to merge. If not, I'll try to find some time to do it, but it might not be this week. Ultimately I'd definitely be happy to put this feature in, though.

[ncarchedi]

@trestletech Thanks for the merge! Sorry I was slow to respond. I actually hacked together a solution yesterday on the JS side of things, but yours is way more elegant.

I never thanked you for putting shinyAce together in the first place. It's EXTREMELY useful for the project I'm working on.

Cheers,
Nick