Struct Class 

pub struct Class<T>(pub T);

A space-separated list of HTML classes.

Prefer constructing Class with the class! macro. The entries live inline in the value (a single entry, a tuple, an array, or a Vec), so building a class list performs no allocation of its own; the entries are written directly into the surrounding view when the attribute value is emitted.

A Class is used in the attribute value position of an element, where a class list without present entries omits the whole attribute:

view! {
    <button class=(class!("btn", "active" if is_active))>"Save"</button>
}

Tuple Fields

0: T

Trait Implementations

impl<T> AttributeValueViewParts for Class<T>

where T: ClassEntries,

fn attribute_present(&self) -> bool

Returns whether the containing attribute should be rendered.

fn into_view_parts(self, cx: &Cx, parts: &mut PartsWriter<'_>)

Appends this attribute value to the view being built.

impl<T> ClassViewParts for Class<T>

where T: ClassEntries,

fn is_present(&self) -> bool

Returns whether this value contributes to the class list.

fn into_view_parts(self, cx: &Cx, parts: &mut PartsWriter<'_>)

Appends this value to the class list being built.

impl<T: Clone> Clone for Class<T>

fn clone(&self) -> Class<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Copy> Copy for Class<T>

impl<T: Debug> Debug for Class<T>

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

Formats the value using the given formatter.

impl<T: Default> Default for Class<T>

fn default() -> Class<T>

Returns the “default value” for a type.