Codex review round 1 on #1272. Both findings are consequences of extending the
Grid/Justified tap-to-reveal model to every layout: what those two layouts got
away with, because they were the only ones using it, becomes wrong once
Masonry, Mosaic and Timeline inherit it.
The hover variants no longer hide behind `md:`. On a fine pointer under 768px
`isTouchDevice` is false, so nothing reveals the overlay, and the `md:` prefix
disabled the only hover variants there were -- the controls stayed
`opacity-0 pointer-events-none` with no way to reach them. Grid and Justified
already behaved that way, but Masonry, Mosaic and Timeline had unprefixed
`group-hover:` and revealed at any width, so this was a regression for them.
Width was never the real question: what the breakpoint was standing in for is
that :hover latches on a touchscreen once a tile is tapped. So the variants are
emitted for pointer devices only and withheld on touch, which says that
directly.
detectCoarsePointer no longer ORs the touch fallbacks over matchMedia.
matchMedia describes the PRIMARY pointer; `ontouchstart` and `maxTouchPoints`
only say a touchscreen exists somewhere, which is equally true of a touchscreen
laptop or a docked tablet being driven by its mouse. OR-ing them classified
those as touch-only, so an ordinary click merely revealed the overlay and
opening a photo took two clicks. The fallbacks now stand in only where
matchMedia is absent, which is what the comment already claimed.
3 more tests, all 3 failing before this commit.
Paul Nothaft
d0274886e6