Allow localization for footnote tooltip

[niknetniko]

The title attribute/tooltip for links to footnotes is not translatable.
For example, in html5, it is hardcoded here.

This means you can't convert the "View footnote" to other languages:

I would expect it to be translatable like other attributes (such as toc title, etc.).

[mojavelinux]

I had completely overlooked that. Great point!

What name (or names) do you propose for customizing this value?

[niknetniko]

Looking at some of the other names, perhaps something along the lines of footnote-tooltip?

[mojavelinux]

That's a good candidate. What do you think about footnote-hint to be more generic?

[niknetniko]

Even better 👍

[mojavelinux]

I just submitted a PR to implement this. Here are the attributes I settled on in that proposal:

• view-footnote-tip - used for the title/tooltip on a footnote number
• unresolved-footnoteref-tip - used for the title/tootip on an unresolved footnote reference

I went back and forth between hint and tip...but since it appears as a tooltip, "tip" seems like a reasonable compromise.

[mojavelinux]

I'm thinking about renaming view-footnote-tip to just footnote-tip. It's the tip that shows on the footnote itself, so I don't think the name needs to suggest what it should say.

If we really wanted to match the underlying terminology, it would be footnotedef-tip, but that doesn't look very clear.