Fix missing data-x-out-of-boundaries attribute

[kylegach]

Current behavior

No support for https://popper.js.org/popper-documentation.html#modifiers..hide.

Expected behavior

Full support for modifiers.hide, specifically that the data-x-out-of-boundaries attribute is passed along.

Changes

Passes along the data-x-out-of-boundaries attribute in a similar manner to data-placement.

Why

We needed this in our app. More importantly, we saw no reason a wrapper around Popper shouldn’t support this.

How this has been tested

Confirmed build still works. Confirmed expected example behavior when running dev after modifying the Popper config like so:

const modifiers = {
  customStyle: {
    // ...unchanged
  },
  preventOverflow: {
    boundariesElement: 'viewport',
  },
  hide: {
    enabled: true,
  },
}

[kylegach]

Hi, @souporserious. Have you had a chance to consider this? We still need it within our app, and would love to not have to rely on my fork.

[FezVrasta]

You may create a custom modifier to add this missing piece of logic. It's fairly easy

[FezVrasta]

Or directly use the data object to obtain this info

[souporserious]

Sorry, I've been super busy lately and just getting around to this. Looks good! Thanks!

[kylegach]

Thanks, Travis!