Système de Design Tailwind

Que fait Système de Design Tailwind ?

Construisez des systèmes de design prêts pour la production avec Tailwind CSS, incluant les tokens de design, les variantes de composants, les motifs réactifs et l'accessibilité.

Quand utiliser cette compétence

• Créer une bibliothèque de composants avec Tailwind
• Implémenter des tokens de design et des thèmes
• Construire des composants réactifs et accessibles
• Standardiser les motifs d'interface dans une base de code
• Migrer vers ou étendre Tailwind CSS
• Mettre en place le mode sombre et les schémas de couleurs

Concepts clés

1. Hiérarchie des tokens de design

Tokens de marque (abstraits)
    └── Tokens sémantiques (finalité)
        └── Tokens de composants (spécifiques)

Exemple :
    blue-500 → primary → button-bg

2. Architecture des composants

Styles de base → Variantes → Tailles → États → Surcharges

Démarrage rapide

// tailwind.config.ts
import type { Config } from "tailwindcss";

const config: Config = {
  content: ["./src/**/*.{js,ts,jsx,tsx,mdx}"],
  darkMode: "class",
  theme: {
    extend: {
      colors: {
        // Tokens de couleurs sémantiques
        primary: {
          DEFAULT: "hsl(var(--primary))",
          foreground: "hsl(var(--primary-foreground))",
        },
        secondary: {
          DEFAULT: "hsl(var(--secondary))",
          foreground: "hsl(var(--secondary-foreground))",
        },
        destructive: {
          DEFAULT: "hsl(var(--destructive))",
          foreground: "hsl(var(--destructive-foreground))",
        },
        muted: {
          DEFAULT: "hsl(var(--muted))",
          foreground: "hsl(var(--muted-foreground))",
        },
        accent: {
          DEFAULT: "hsl(var(--accent))",
          foreground: "hsl(var(--accent-foreground))",
        },
        background: "hsl(var(--background))",
        foreground: "hsl(var(--foreground))",
        border: "hsl(var(--border))",
        ring: "hsl(var(--ring))",
      },
      borderRadius: {
        lg: "var(--radius)",
        md: "calc(var(--radius) - 2px)",
        sm: "calc(var(--radius) - 4px)",
      },
    },
  },
  plugins: [require("tailwindcss-animate")],
};

export default config;

/* globals.css */
@tailwind base;
@tailwind components;
@tailwind utilities;

@layer base {
  :root {
    --background: 0 0% 100%;
    --foreground: 222.2 84% 4.9%;
    --primary: 222.2 47.4% 11.2%;
    --primary-foreground: 210 40% 98%;
    --secondary: 210 40% 96.1%;
    --secondary-foreground: 222.2 47.4% 11.2%;
    --muted: 210 40% 96.1%;
    --muted-foreground: 215.4 16.3% 46.9%;
    --accent: 210 40% 96.1%;
    --accent-foreground: 222.2 47.4% 11.2%;
    --destructive: 0 84.2% 60.2%;
    --destructive-foreground: 210 40% 98%;
    --border: 214.3 31.8% 91.4%;
    --ring: 222.2 84% 4.9%;
    --radius: 0.5rem;
  }

  .dark {
    --background: 222.2 84% 4.9%;
    --foreground: 210 40% 98%;
    --primary: 210 40% 98%;
    --primary-foreground: 222.2 47.4% 11.2%;
    --secondary: 217.2 32.6% 17.5%;
    --secondary-foreground: 210 40% 98%;
    --muted: 217.2 32.6% 17.5%;
    --muted-foreground: 215 20.2% 65.1%;
    --accent: 217.2 32.6% 17.5%;
    --accent-foreground: 210 40% 98%;
    --destructive: 0 62.8% 30.6%;
    --destructive-foreground: 210 40% 98%;
    --border: 217.2 32.6% 17.5%;
    --ring: 212.7 26.8% 83.9%;
  }
}

Motifs

Motif 1 : Composants CVA (Class Variance Authority)

// components/ui/button.tsx
import { cva, type VariantProps } from 'class-variance-authority'
import { forwardRef } from 'react'
import { cn } from '@/lib/utils'

const buttonVariants = cva(
  // Styles de base
  'inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium ring-offset-background transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50',
  {
    variants: {
      variant: {
        default: 'bg-primary text-primary-foreground hover:bg-primary/90',
        destructive: 'bg-destructive text-destructive-foreground hover:bg-destructive/90',
        outline: 'border border-input bg-background hover:bg-accent hover:text-accent-foreground',
        secondary: 'bg-secondary text-secondary-foreground hover:bg-secondary/80',
        ghost: 'hover:bg-accent hover:text-accent-foreground',
        link: 'text-primary underline-offset-4 hover:underline',
      },
      size: {
        default: 'h-10 px-4 py-2',
        sm: 'h-9 rounded-md px-3',
        lg: 'h-11 rounded-md px-8',
        icon: 'h-10 w-10',
      },
    },
    defaultVariants: {
      variant: 'default',
      size: 'default',
    },
  }
)

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean
}

const Button = forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, asChild = false, ...props }, ref) => {
    const Comp = asChild ? Slot : 'button'
    return (
      <Comp
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        {...props}
      />
    )
  }
)
Button.displayName = 'Button'

export { Button, buttonVariants }

// Utilisation
<Button variant="destructive" size="lg">Supprimer</Button>
<Button variant="outline">Annuler</Button>
<Button asChild><Link href="/home">Accueil</Link></Button>

Motif 2 : Composants composés

// components/ui/card.tsx
import { cn } from '@/lib/utils'
import { forwardRef } from 'react'

const Card = forwardRef<HTMLDivElement, React.HTMLAttributes<HTMLDivElement>>(
  ({ className, ...props }, ref) => (
    <div
      ref={ref}
      className={cn(
        'rounded-lg border bg-card text-card-foreground shadow-sm',
        className
      )}
      {...props}
    />
  )
)
Card.displayName = 'Card'

const CardHeader = forwardRef<HTMLDivElement, React.HTMLAttributes<HTMLDivElement>>(
  ({ className, ...props }, ref) => (
    <div
      ref={ref}
      className={cn('flex flex-col space-y-1.5 p-6', className)}
      {...props}
    />
  )
)
CardHeader.displayName = 'CardHeader'

const CardTitle = forwardRef<HTMLHeadingElement, React.HTMLAttributes<HTMLHeadingElement>>(
  ({ className, ...props }, ref) => (
    <h3
      ref={ref}
      className={cn('text-2xl font-semibold leading-none tracking-tight', className)}
      {...props}
    />
  )
)
CardTitle.displayName = 'CardTitle'

const CardDescription = forwardRef<HTMLParagraphElement, React.HTMLAttributes<HTMLParagraphElement>>(
  ({ className, ...props }, ref) => (
    <p
      ref={ref}
      className={cn('text-sm text-muted-foreground', className)}
      {...props}
    />
  )
)
CardDescription.displayName = 'CardDescription'

const CardContent = forwardRef<HTMLDivElement, React.HTMLAttributes<HTMLDivElement>>(
  ({ className, ...props }, ref) => (
    <div ref={ref} className={cn('p-6 pt-0', className)} {...props} />
  )
)
CardContent.displayName = 'CardContent'

const CardFooter = forwardRef<HTMLDivElement, React.HTMLAttributes<HTMLDivElement>>(
  ({ className, ...props }, ref) => (
    <div
      ref={ref}
      className={cn('flex items-center p-6 pt-0', className)}
      {...props}
    />
  )
)
CardFooter.displayName = 'CardFooter'

export { Card, CardHeader, CardTitle, CardDescription, CardContent, CardFooter }

// Utilisation
<Card>
  <CardHeader>
    <CardTitle>Compte</CardTitle>
    <CardDescription>Gérez les paramètres de votre compte</CardDescription>
  </CardHeader>
  <CardContent>
    <form>...</form>
  </CardContent>
  <CardFooter>
    <Button>Enregistrer</Button>
  </CardFooter>
</Card>

Motif 3 : Composants de formulaire

// components/ui/input.tsx
import { forwardRef } from 'react'
import { cn } from '@/lib/utils'

export interface InputProps extends React.InputHTMLAttributes<HTMLInputElement> {
  error?: string
}

const Input = forwardRef<HTMLInputElement, InputProps>(
  ({ className, type, error, ...props }, ref) => {
    return (
      <div className="relative">
        <input
          type={type}
          className={cn(
            'flex h-10 w-full rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background file:border-0 file:bg-transparent file:text-sm file:font-medium placeholder:text-muted-foreground focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50',
            error && 'border-destructive focus-visible:ring-destructive',
            className
          )}
          ref={ref}
          aria-invalid={!!error}
          aria-describedby={error ? `${props.id}-error` : undefined}
          {...props}
        />
        {error && (
          <p
            id={`${props.id}-error`}
            className="mt-1 text-sm text-destructive"
            role="alert"
          >
            {error}
          </p>
        )}
      </div>
    )
  }
)
Input.displayName = 'Input'

// components/ui/label.tsx
import { cva, type VariantProps } from 'class-variance-authority'

const labelVariants = cva(
  'text-sm font-medium leading-none peer-disabled:cursor-not-allowed peer-disabled:opacity-70'
)

const Label = forwardRef<HTMLLabelElement, React.LabelHTMLAttributes<HTMLLabelElement>>(
  ({ className, ...props }, ref) => (
    <label ref={ref} className={cn(labelVariants(), className)} {...props} />
  )
)
Label.displayName = 'Label'

// Utilisation avec React Hook Form
import { useForm } from 'react-hook-form'
import { zodResolver } from '@hookform/resolvers/zod'
import * as z from 'zod'

const schema = z.object({
  email: z.string().email('Adresse e-mail invalide'),
  password: z.string().min(8, 'Le mot de passe doit contenir au moins 8 caractères'),
})

function LoginForm() {
  const { register, handleSubmit, formState: { errors } } = useForm({
    resolver: zodResolver(schema),
  })

  return (
    <form onSubmit={handleSubmit(onSubmit)} className="space-y-4">
      <div className="space-y-2">
        <Label htmlFor="email">E-mail</Label>
        <Input
          id="email"
          type="email"
          {...register('email')}
          error={errors.email?.message}
        />
      </div>
      <div className="space-y-2">
        <Label htmlFor="password">Mot de passe</Label>
        <Input
          id="password"
          type="password"
          {...register('password')}
          error={errors.password?.message}
        />
      </div>
      <Button type="submit" className="w-full">Se connecter</Button>
    </form>
  )
}

Motif 4 : Système de grille réactive

// components/ui/grid.tsx
import { cn } from '@/lib/utils'
import { cva, type VariantProps } from 'class-variance-authority'

const gridVariants = cva('grid', {
  variants: {
    cols: {
      1: 'grid-cols-1',
      2: 'grid-cols-1 sm:grid-cols-2',
      3: 'grid-cols-1 sm:grid-cols-2 lg:grid-cols-3',
      4: 'grid-cols-1 sm:grid-cols-2 lg:grid-cols-4',
      5: 'grid-cols-2 sm:grid-cols-3 lg:grid-cols-5',
      6: 'grid-cols-2 sm:grid-cols-3 lg:grid-cols-6',
    },
    gap: {
      none: 'gap-0',
      sm: 'gap-2',
      md: 'gap-4',
      lg: 'gap-6',
      xl: 'gap-8',
    },
  },
  defaultVariants: {
    cols: 3,
    gap: 'md',
  },
})

interface GridProps
  extends React.HTMLAttributes<HTMLDivElement>,
    VariantProps<typeof gridVariants> {}

export function Grid({ className, cols, gap, ...props }: GridProps) {
  return (
    <div className={cn(gridVariants({ cols, gap, className }))} {...props} />
  )
}

// Composant conteneur
const containerVariants = cva('mx-auto w-full px-4 sm:px-6 lg:px-8', {
  variants: {
    size: {
      sm: 'max-w-screen-sm',
      md: 'max-w-screen-md',
      lg: 'max-w-screen-lg',
      xl: 'max-w-screen-xl',
      '2xl': 'max-w-screen-2xl',
      full: 'max-w-full',
    },
  },
  defaultVariants: {
    size: 'xl',
  },
})

interface ContainerProps
  extends React.HTMLAttributes<HTMLDivElement>,
    VariantProps<typeof containerVariants> {}

export function Container({ className, size, ...props }: ContainerProps) {
  return (
    <div className={cn(containerVariants({ size, className }))} {...props} />
  )
}

// Utilisation
<Container>
  <Grid cols={4} gap="lg">
    {products.map((product) => (
      <ProductCard key={product.id} product={product} />
    ))}
  </Grid>
</Container>

Motif 5 : Utilitaires d'animation

// lib/animations.ts - Utilitaires d'animation Tailwind CSS
import { cn } from './utils'

export const fadeIn = 'animate-in fade-in duration-300'
export const fadeOut = 'animate-out fade-out duration-300'
export const slideInFromTop = 'animate-in slide-in-from-top duration-300'
export const slideInFromBottom = 'animate-in slide-in-from-bottom duration-300'
export const slideInFromLeft = 'animate-in slide-in-from-left duration-300'
export const slideInFromRight = 'animate-in slide-in-from-right duration-300'
export const zoomIn = 'animate-in zoom-in-95 duration-300'
export const zoomOut = 'animate-out zoom-out-95 duration-300'

// Animations composées
export const modalEnter = cn(fadeIn, zoomIn, 'duration-200')
export const modalExit = cn(fadeOut, zoomOut, 'duration-200')
export const dropdownEnter = cn(fadeIn, slideInFromTop, 'duration-150')
export const dropdownExit = cn(fadeOut, 'slide-out-to-top', 'duration-150')

// components/ui/dialog.tsx
import * as DialogPrimitive from '@radix-ui/react-dialog'

const DialogOverlay = forwardRef<
  React.ElementRef<typeof DialogPrimitive.Overlay>,
  React.ComponentPropsWithoutRef<typeof DialogPrimitive.Overlay>
>(({ className, ...props }, ref) => (
  <DialogPrimitive.Overlay
    ref={ref}
    className={cn(
      'fixed inset-0 z-50 bg-black/80',
      'data-[state=open]:animate-in data-[state=closed]:animate-out',
      'data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0',
      className
    )}
    {...props}
  />
))