public enum PointerCapabilityWhat a pointing device can do, as CSS's pointer and any-pointer ask.
No guide page documents this yet — the page shows what the code says about itself.
Remarks
⚠ Flags, and the reason is any-pointer rather than pointer. Media Queries 5 § 9.2 says pointer describes the primary mechanism and takes one value, while any-pointer is true of every value some attached device satisfies — a tablet with a stylus and a finger is coarse and fine at once. One type serves both, because a single value is a one-bit set.
⚠ NoDevice is a bit rather than the zero, and that is the whole design of this enum. CSS's none is the empty capability set, and the empty set is also what a field nobody assigned holds — so if zero meant "no pointing device" then default(MediaContext) would assert a machine with no mouse and pointer-none: would be the rule that always applies. Zero therefore means Unspecified, which MediaContext resolves to Fine; NoDevice is the stated empty set and carries a bit so that it can be told from the unstated one. Both read as "no pointing device" to a query, since the test is for the absence of Coarse and Fine.
Fields and properties (4)
UnspecifiedNothing has been said about the pointing devices. Read as Fine.
CoarseA device with limited accuracy — a finger.
FineA device that can point accurately — a mouse or a stylus.
NoDeviceStated: there is no pointing device at all, which is CSS's none.
Used by (3)
- MediaPreferencesVixen.Ui.Styling
- MediaQueryVixen.Ui.Styling
- VariantCoverageTestsVixen.Ui.Styling.Utilities.Tests