Generic text box support

[nickserv]

Other extensions like prettier-js-extension allow any text box to be used for formatting, which would help make this extension more useful with less code changes. I still think some of the functionality and UI specific to GitHub and Stack Overflow could be useful though.

[lipis]

Yes, when you clicking on the Prettier button from the toolbar, and if the focus is inside a textarea it should probably format it.

[kaicataldo]

Out of curiosity, how do we want to handle detecting the parser? Just naively assume it's Markdown? I wonder if the we could have a dropdown list when clicking the Prettier button in the toolbar that says Format as... and then has a list of langs we're supporting?

[nickserv]

Good question, maybe we could use a language detection library and fall back to Markdown when it's unknown or looks like snippets from multiple languages.

[kaicataldo]

Ohhh I like that idea :)

[nickserv]

Some resources for language detection:

• https://prettier.io/docs/en/api.html#prettiergetsupportinfo-version
• https://highlightjs.readthedocs.io/en/latest/api.html#highlightauto-value-languagesubset
• https://www.npmjs.com/package/language-map
• https://www.npmjs.com/package/language-detect