Underline Functionality Addition

[JohnWeidmann]

Would is be possible to request underline button for this text editor?

Thanks

[tonysm]

@JohnWeidmann Yep. You can register a new text attribute in Trix.

1. Here's how text attributes are defined in Trix itself: https://github.com/basecamp/trix/blob/main/src/trix/config/text_attributes.js#L30-L33
2. You'd have to add your custom text attribute after Trix boots (like this and this)
3. Then, you'd have to either add your own toolbar or hook into the Trix initialization process (like this) and insert your new button into the text attributes (like this). I'd recommend using the <u> tag for that (mdn docs), but you need to style as underline via CSS to ensure all browsers render it the same way.

I'll cover this as a blog post soon, it's a nice example. Thanks!