Enum FontDisplay 

pub enum FontDisplay {
    Auto,
    Block,
    Swap,
    Fallback,
    Optional,
}

How a font face is displayed while it loads, as named by the CSS font-display descriptor of an @font-face rule.

The strategy governs the block period (during which text renders invisibly, awaiting the face) and the swap period (during which a fallback renders but is swapped for the face once it loads). FontDisplay::default is Auto, matching CSS.

Displays as the CSS keyword (auto, block, swap, fallback, optional).

Variants

Auto

The font display strategy is defined by the user agent, CSS auto.

Block

Gives the font face a short block period and an infinite swap period, CSS block.

Swap

Gives the font face an extremely small block period and an infinite swap period, CSS swap.

Fallback

Gives the font face an extremely small block period and a short swap period, CSS fallback.

Optional

Gives the font face an extremely small block period and no swap period, CSS optional.

Implementations

impl FontDisplay

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

The CSS keyword for this strategy, as written for the font-display descriptor.

pub fn from_keyword(keyword: &str) -> Option<Self>

The strategy named by the given CSS font-display keyword, if the keyword names a known strategy.

Trait Implementations

impl Clone for FontDisplay

fn clone(&self) -> FontDisplay

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FontDisplay

impl Debug for FontDisplay

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

Formats the value using the given formatter.

impl Default for FontDisplay

fn default() -> FontDisplay

Returns the “default value” for a type.

impl Display for FontDisplay

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

Formats the value using the given formatter.

impl Eq for FontDisplay

impl Hash for FontDisplay

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 FontDisplay

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for FontDisplay