Enum ClassList 

pub enum ClassList {
    Owned(Vec<Cow<'static, str>>),
    Static(&'static str),
    Const(&'static [&'static str]),
    Empty,
}

Represents a collection of CSS classes applied to a DOM node.

Variants

Owned(Vec<Cow<'static, str>>)

Owned storage for the list of classes.

Static(&'static str)

Single static class stored without allocation.

Const(&'static [&'static str])

Multiple static classes stored without allocation.

Empty

Explicit empty list of classes.

Implementations

impl ClassList

pub const fn is_empty(&self) -> bool

Returns true if the list contains no classes.

pub const fn len(&self) -> usize

Returns the number of classes in the list.

pub fn first(&self) -> Option<&str>

Returns the first class if present.

pub fn get(&self, index: usize) -> Option<&str>

Gets a class at a specific index if it exists.

pub fn get_mut(&mut self, index: usize) -> Option<&mut Cow<'static, str>>

Gets a mutable reference to a class at a specific index.

pub fn reserve(&mut self, additional: usize)

Reserves capacity for additional classes when owned.

pub fn contains(&self, class: &str) -> bool

Returns true if the class list contains the specified class name.

pub fn push<S>(&mut self, class: S)

where S: Into<Cow<'static, str>>,

Pushes a class onto the list, ignoring empty entries.

pub fn insert<S>(&mut self, index: usize, class: S)

where S: Into<Cow<'static, str>>,

Inserts a class at the specified position, ignoring empty entries.

pub fn iter(&self) -> ClassListIter<'_>

Iterate over all classes in the list.

Trait Implementations

impl Clone for ClassList

fn clone(&self) -> ClassList

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClassList

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

Formats the value using the given formatter.

impl Default for ClassList

fn default() -> ClassList

Returns the “default value” for a type.

impl Extend<Cow<'static, str>> for ClassList

fn extend<T: IntoIterator<Item = Cow<'static, str>>>(&mut self, iter: T)

Extends a collection with the contents of an iterator.

fn extend_one(&mut self, item: A)

🔬This is a nightly-only experimental API. (extend_one)

Extends a collection with exactly one element.

fn extend_reserve(&mut self, additional: usize)

🔬This is a nightly-only experimental API. (extend_one)

Reserves capacity in a collection for the given number of additional elements.

impl From<&'static [&'static str]> for ClassList

fn from(value: &'static [&'static str]) -> Self

Converts to this type from the input type.

impl From<&'static str> for ClassList

fn from(value: &'static str) -> Self

Converts to this type from the input type.

impl From<Vec<Cow<'static, str>>> for ClassList

fn from(value: Vec<Cow<'static, str>>) -> Self

Converts to this type from the input type.

impl<'a> IntoIterator for &'a ClassList

type Item = &'a str

The type of the elements being iterated over.

type IntoIter = ClassListIter<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl PartialEq for ClassList

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.