isCoarsePointer

isCoarsePointer is an internal environment helper.

Public status

It lives in src/utils, but it is not exported by the package root. Treat it as internal runtime reference.

What it checks

The current implementation combines:

• matchMedia('(pointer: coarse)')
• matchMedia('(pointer: fine)')
• viewport width
• navigator.maxTouchPoints

Current behavior

• if a fine primary pointer is clearly detected, it returns false
• narrow screens are treated as coarse
• touch capability is used as fallback when the pointer media queries are not decisive

Why it exists

This helps the runtime avoid simplistic mobile detection and better decide when touch-oriented behavior should win.