Enum Density 

pub enum Density {
    Pointer,
    Touch,
}

Which input the layout is being sized for.

A preset, not a breakpoint, and orthogonal to Surface: density decides which step a relationship picks, the surface decides how that step lands. Which density applies is the app’s call — GoingsOn and Balanced Breakfast already decide it once and hang a ui-mode-* class off the result.

Variants

Pointer

Mouse or trackpad. Resolves to the Mac OS 8 HIG’s own proportions.

Touch

Finger. Opens the gaps that separate distinct tap targets and leaves the shells where Pointer put them, because a coarse contact patch raises mis-tap cost and a panel margin is not something you tap. See the crate-level “Density presets” section for the derivation.

Implementations

impl Density

pub const fn media_condition(self) -> &'static str

The media condition selecting exactly this density, without the @media.

A capability question rather than a width or a device, which is the policy this crate already settled for density_css and which three consumers previously answered three ways.

The two are not each other’s textual negation, and that is the reason they live in one place. Touch is comma-joined, so it is an OR, and negating an OR gives an AND with both halves inverted. Deriving one from the other by eye is how the pair drifts apart, and it drifts silently: a wrong negation still parses, still minifies, and only shows up as hover states surviving on a phone.

Pointer’s condition is what a renderer wraps a hover rule in. makeover-touch decides whether a hover rule should be gated; this decides what the gate is spelled as.

Trait Implementations

impl Clone for Density

fn clone(&self) -> Density

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Density

impl Debug for Density

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Density

fn default() -> Density

Returns the “default value” for a type.

impl Eq for Density

impl Hash for Density

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Density

fn eq(&self, other: &Density) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Density