React components and hooks for dash-ui

npm i @dash-ui/react

Quick Start

NOTE: You do not need to use this package to use @dash-ui with React. This merely provides a few useful utilities, particularly on the server-side.

Check out an example on CodeSandbox

import { createStyles } from "@dash-ui/styles";
import { useGlobal } from "@dash-ui/react";

const styles = createStyles({
  tokens: {
    color: {
      primary: "#ee5b5f",
    },
  },
});

const Heading = () => {
  useGlobal(
    styles,
    ({ color }) => `
      h1 {
        font-size: 2rem;
        font-family: -apple-system, sans-serif;
        color: ${color.primary};
      }
    `,
    []
  );

  return <h1>Hello world</h1>;
};

API docs

Components

Component	Description
`<Inline>`	A component for creating an inline `<style>` tag that is unmounted when the component unmounts.

Hooks

Hook	Description
`useCSS()`	A hook for performantly and reliably inserting CSS into the DOM in React 18 using the `useInsertionEffect` hook.
`useGlobal()`	A hook for inserting transient global styles into the DOM. These styles will be injected when the hook mounts and flushed when the hook unmounts.
`useTokens()`	A hook for inserting transient CSS tokens into the DOM. These tokens will be injected when the hook mounts and flushed when the hook unmounts.
`useThemes()`	A hook for inserting transient CSS theme tokens into the DOM. These tokens will be injected when the hook mounts and flushed when the hook unmounts.

Server rendering

	Description
`<Style>`	A React component for injecting SSR CSS styles into Next.js documents.
`toComponent()`	A function for creating a React `<style>` component for inserting Dash styles in SSR.
`createGatsbyRenderer`	Creates a Gatsby replaceRenderer for injecting styles generated by Dash on the server into the Gatsby `<head>` component

TypeScript support

Dash is written in TypeScript. It's also strongly typed, creating a beautiful IntelliSense experience in VSCode and providing solid insurance to your TypeScript application.

	Description
Strongly typed tokens	Learn how to add autocomplete and type safety to your CSS tokens.
Strongly typed themes	Learn how to add autocomplete and type safety to your CSS variable themes.

<Inline>

A component for creating an inline <style> tag that is unmounted when the component unmounts.

Example

Play with an example on CodeSandbox

import * as React from 'react'
import {styles} from '@dash-ui/styles'
import {Inline} from '@dash-ui/react'

export const App = () => {
  return (
    <React.Fragment>
      <Inline styles={styles} css={`
        .heading {
          font-size: 2rem;
          font-family: -apple-system, sans-serif;
        }
      `}>
      <h1 className='heading'>Hello world</h1>
    </React.Fragment>
  )
}

Props

Prop	Type	Required?	Description
styles	`Styles<DashTokens, DashThemes>`	Yes	A `styles` instance.
css	`StyleValue<DashTokens>`	Yes	The CSS you want to inline in the DOM.

useCSS()

A hook for performantly and reliably inserting CSS into the DOM in React 18 using the useInsertionEffect hook.

Example

Play with an example on CodeSandbox

import * as React from "react";
import { createStyles } from "@dash-ui/styles";
import { useGlobal } from "@dash-ui/react";

const styles = createStyles();

const Component = () => {
  const classes = useCSS(styles, {
    root: styles.one({ display: "flex", gap: "2rem" }),
  });

  return (
    <div className={classes.root}>
      <div>Hello</div>
      <div>World</div>
    </div>
  );
};

Returns

Record<ClassNames, string>;

useGlobal()

A hook for inserting transient global styles into the DOM. These styles will be injected when the hook mounts and flushed when the hook unmounts.

Example

Play with an example on CodeSandbox

import * as React from "react";
import { createStyles } from "@dash-ui/styles";
import { useGlobal } from "@dash-ui/react";

const styles = createStyles();

const Component = () => {
  useGlobal(
    styles,
    {
      body: {
        minHeight: "100vh",
        backgroundColor: "#ee5b5f",
        color: "#fff",
        fontFamily: "Inter, -apple-system, sans-serif",
      },
      h1: {
        margin: "1rem",
        fontSize: "3rem",
      },
    },
    []
  );

  return (
    <div>
      <h1>Hello world</h1>
    </div>
  );
};

Returns

null;

useTokens()

A hook for inserting transient CSS tokens into the DOM. These tokens will be injected when the hook mounts and flushed when the hook unmounts.

Example

Play with an example on CodeSandbox

import * as React from "react";
import { createStyles } from "@dash-ui/styles";
import { useThemes } from "@dash-ui/react";

const styles = createStyles({
  tokens: {
    primaryColor: "#ee5b5f",
  },
});

const Component = () => {
  const [primaryColor, setPrimaryColor] = React.useState("#ee5b5f");

  useTokens(styles, { primaryColor }, [primaryColor]);

  return (
    <div>
      <div
        className={styles.cls(
          ({ primaryColor }) => `
            width: 200px;
            height: 200px;
            background-color: ${primaryColor};
          `
        )}
      />

      <label>
        <h4>Primary color</h4>
        <input
          value={primaryColor}
          onChange={(e) => setPrimaryColor(e.target.value)}
        />
      </label>
    </div>
  );
};

Arguments

function useTokens(
  value: PartialDeep<DashTokens> | Falsy,
  deps?: React.DependencyList
);

| Argument | Type | Required? | Description | | -------- | -------------------------------- | --------- | --------------------------------------------------------------- | ------------------------------------------------------------------ | | styles | Styles<DashTokens, DashThemes> | Yes | A styles instance. | | value | PartialDeep<DashTokens> | Falsy | Yes | CSS tokens to inject into the DOM and flush when the hook unmounts | | deps | React.DependencyList | No | A dependency array that will force the hook to re-insert tokens |

Returns

null;

useThemes()

A hook for inserting transient CSS theme tokens into the DOM. These tokens will be injected when the hook mounts and flushed when the hook unmounts.

Example

Play with an example on CodeSandbox

import * as React from "react";
import { createStyles } from "@dash-ui/styles";
import { useThemes } from "@dash-ui/react";

const styles = createStyles({
  themes: {
    // Light mode CSS tokens
    light: {
      primaryColor: "#ee5b5f",
    },
    // Dark mode CSS tokens
    dark: {
      primaryColor: "#272727",
    },
  },
});

const Component = () => {
  const [mode, setMode] = React.useState("light");
  const [darkModePrimary, setDarkModePrimary] = React.useState("#272727");
  const [lightModePrimary, setLightModePrimary] = React.useState("#ee5b5f");

  useThemes(
    {
      light: {
        primaryColor: lightModePrimary,
      },
      dark: {
        primaryColor: darkModePrimary,
      },
    },
    [darkModePrimary, lightModePrimary]
  );

  return (
    <body className={styles.theme(mode)}>
      <div
        className={styles.cls(
          ({ primaryColor }) => `
            width: 200px;
            height: 200px;
            background-color: ${primaryColor};
          `
        )}
      />

      <div>
        <button
          onClick={() =>
            setMode((mode) => (mode === "light" ? "dark" : "light"))
          }
        >
          Switch to {mode === "light" ? "dark" : "light"} mode
        </button>
      </div>

      <label>
        <h4>Light mode primary color</h4>
        <input
          value={lightModePrimary}
          onChange={(e) => setLightModePrimary(e.target.value)}
        />
      </label>

      <label>
        <h4>Dark mode primary color</h4>
        <input
          value={darkModePrimary}
          onChange={(e) => setDarkModePrimary(e.target.value)}
        />
      </label>
    </body>
  );
};

Arguments

function useThemes(
  styles,
  value: PartialDeep<DashThemes> | Falsy,
  deps?: React.DependencyList
);

Argument	Type	Required?	Description
styles	`Styles<DashTokens, DashThemes>`	Yes	A `styles` instance.
value	`PartialDeep<DashThemes>\| Falsy`	Yes	Themes to inject into the DOM and flush when the hook unmounts
deps	`React.DependencyList`	No	A dependency array that will force the hook to re-insert themes

Returns

null;

<Style>

A React component for injecting SSR CSS styles into Next.js documents.

Example

// _document.js
import React from "react";
import Document from "next/document";
import { styles } from "@dash-ui/styles";
import { Style } from "＠dash-ui/react/server";

export default class MyDocument extends Document {
  static async getInitialProps(ctx) {
    const initialProps = await Document.getInitialProps(ctx);

    return {
      ...initialProps,
      styles: (
        <React.Fragment>
          {initialProps.styles}
          <Style html={initialProps.html} styles={styles} />
        </React.Fragment>
      ),
    };
  }
}

Props

Prop	Type	Required?	Description
html	`string`	Yes	HTML generated by Next.js, `renderToStaticMarkup()` or `renderToString()`
styles	`Styles<DashTokens, DashThemes>`	No	An instance of `styles`. Defaults to the default styles instance in `@dash-ui/styles`.

toComponent()

A function for creating a React <style> component for inserting Dash styles in SSR.

Example

// _document.js
import React from "react";
import Document from "next/document";
import { styles } from "@dash-ui/styles";
import { toComponent } from "＠dash-ui/react/server";

export default class MyDocument extends Document {
  static async getInitialProps(ctx) {
    const initialProps = await Document.getInitialProps(ctx);

    return {
      ...initialProps,
      styles: (
        <React.Fragment>
          {initialProps.styles}
          {toComponent(initialProps.html, styles)}
        </React.Fragment>
      ),
    };
  }
}

Arguments

function toComponent(
  html: string,
  styles: Styles = defaultStyles
): React.ReactElement;

Argument	Type	Required?	Description
html	`string`	Yes	The HTML generated by `renderToStaticMarkup()` or `renderToString()`
styles	`Styles<DashTokens, DashThemes>`	No	An instance of `styles`. Defaults to the default styles instance in `@dash-ui/styles`.

Returns

React.ReactElement; // A <style> element

createGatsbyRenderer()

Creates a Gatsby replaceRenderer for injecting styles generated by Dash on the server into the Gatsby <head> component.

Example

// gatsby-ssr.js
const { styles } = require("@dash-ui/styles");

exports.replaceRenderer =
  require("＠dash-ui/react/server").createGatsbyRenderer(styles);

Arguments

function createGatsbyRenderer(styles: Styles = defaultStyles);

Argument	Type	Required?	Description
styles	`Styles<DashTokens, DashThemes>`	Yes	An instance of `styles`. Defaults to the default styles instance in `@dash-ui/styles`.

Returns

function replaceRenderer<P = any>(props: P): P; // A Gatsby replace renderer

Strongly typed tokens

To use variable types with @dash-ui/react, you have to use the module declaration pattern:

Play with this example on CodeSandbox

const tokens = {
  color: {
    red: "#c17",
  },
};

type AppTokens = typeof tokens;

declare module "@dash-ui/styles" {
  export interface DashTokens extends AppTokens {}
}

// OR alternatively
declare module "@dash-ui/styles" {
  export interface DashTokens {
    color: {
      red: string;
    };
  }
}

Strongly typed themes

To use variable/theme types with @dash-ui/react, you have to use the module declaration pattern:

Play with the example on CodeSandbox

const themes = {
  light: {
    color: {
      // var(--color-bg)
      bg: "#fafafa",
    },
  },
  dark: {
    color: {
      // var(--color-bg)
      bg: "#1a1a1a",
    },
  },
};

type AppThemes = typeof themes;
type AppTokens = AppThemes["dark"] & AppThemes["light"];

declare module "@dash-ui/styles" {
  export interface DashTokens extends AppTokens {}
  export interface DashThemes extends AppThemes {}
}

// OR alternatively
declare module "@dash-ui/styles" {
  export interface DashTokens {
    color: {
      bg: string;
    };
  }

  export interface DashThemes {
    light: DashTokens;
    dark: DashTokens;
  }
}

LICENSE

MIT

Files

README.md

Latest commit

History

README.md

File metadata and controls

Quick Start

API docs

Components

Hooks

Server rendering

TypeScript support

<Inline>

Example

Props

useCSS()

Example

Returns

useGlobal()

Example

Returns

useTokens()

Example

Arguments

Returns

useThemes()

Example

Arguments

Returns

<Style>

Example

Props

toComponent()

Example

Arguments

Returns

createGatsbyRenderer()

Example

Arguments

Returns

Strongly typed tokens

Strongly typed themes

LICENSE