Struct CssVar 

pub struct CssVar(/* private fields */);

Represents a reference to a CSS custom property (CSS variable).

The CssVar struct allows you to reference CSS variables in your styles. When displayed, it formats the variable name as var(--name), which is the correct syntax for using CSS variables in property values.

CSS variables provide a way to store values that can be reused throughout a document. They help maintain consistency and make it easier to update styles globally.

Examples

use mew_css::variable::{CssVar, var};
use mew_css::style;
use mew_css::values::Color;

// Create a CSS variable reference
let primary_color = CssVar::new("primary-color");

// Use it in a style
let css = style()
    .color(Color::Var(primary_color))
    .apply();

assert_eq!(css, "color: var(--primary-color);");

// The shorter way using the `var` function and `into()`
let css = style()
    .color(var("primary-color").into())
    .apply();

assert_eq!(css, "color: var(--primary-color);");

Implementations

impl CssVar

pub fn new(name: &str) -> Self

Creates a new CSS variable reference.

This method creates a reference to a CSS variable that can be used in property values. The variable name can be provided with or without the -- prefix; if it’s missing, it will be added automatically.

Arguments

• name - The variable name (with or without the -- prefix)

Returns

A new CssVar instance

Examples

use mew_css::variable::CssVar;

// These are equivalent
let var1 = CssVar::new("primary-color");
let var2 = CssVar::new("--primary-color");

Trait Implementations

impl Clone for CssVar

fn clone(&self) -> CssVar

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CssVar

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

Formats the value using the given formatter.

impl Display for CssVar

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

Formats the value using the given formatter.

impl From<CssVar> for AlignItems

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for BorderStyle

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for Color

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for Cursor

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for Display

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for FlexDirection

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for FontSize

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for FontWeight

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for JustifyContent

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for LineHeight

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for Overflow

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for Position

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for Size

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for TextAlign

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for TextDecoration

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for Visibility

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl From<CssVar> for ZIndex

fn from(var: CssVar) -> Self

Converts to this type from the input type.

impl PartialEq for CssVar

fn eq(&self, other: &CssVar) -> 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.

impl StructuralPartialEq for CssVar