refactor: use a consistent classname prop and avoid children prop

I was using the FunctionComponent type for some component that do not
use children. So I change the type to VoidFunctionComponent to avoid
mistakes.
I also rename all the "classes" or "additionalClasses" props to
"className" to keep consistency between each components.

4 files changed, 23 insertions, 6 deletions

diff --git a/src/components/atoms/buttons/button-link.tsx b/src/components/atoms/buttons/button-link.tsx
index 47fe4b0..81229c8 100644
--- a/src/components/atoms/buttons/button-link.tsx
+++ b/src/components/atoms/buttons/button-link.tsx
@@ -2,7 +2,7 @@ import Link from 'next/link';
 import { FC } from 'react';
 import styles from './buttons.module.scss';
 
-type ButtonLinkProps = {
+export type ButtonLinkProps = {
   /**
    * ButtonLink accessible label.
    */
diff --git a/src/components/atoms/buttons/button.stories.tsx b/src/components/atoms/buttons/button.stories.tsx
index 9f4061b..1061d83 100644
--- a/src/components/atoms/buttons/button.stories.tsx
+++ b/src/components/atoms/buttons/button.stories.tsx
@@ -33,6 +33,19 @@ export default {
         required: true,
       },
     },
+    className: {
+      control: {
+        type: 'text',
+      },
+      description: 'Set additional classnames to the button wrapper.',
+      table: {
+        category: 'Styles',
+      },
+      type: {
+        name: 'string',
+        required: false,
+      },
+    },
     disabled: {
       control: {
         type: 'boolean',
diff --git a/src/components/atoms/buttons/button.tsx b/src/components/atoms/buttons/button.tsx
index ae4c894..b223046 100644
--- a/src/components/atoms/buttons/button.tsx
+++ b/src/components/atoms/buttons/button.tsx
@@ -3,9 +3,9 @@ import styles from './buttons.module.scss';
 
 export type ButtonProps = {
   /**
-   * Add additional classes to the button wrapper.
+   * Set additional classnames to the button wrapper.
    */
-  additionalClasses?: string;
+  className?: string;
   /**
    * Button accessible label.
    */
@@ -17,7 +17,7 @@ export type ButtonProps = {
   /**
    * Button kind. Default: secondary.
    */
-  kind?: 'primary' | 'secondary' | 'tertiary';
+  kind?: 'primary' | 'secondary' | 'tertiary' | 'neutral';
   /**
    * A callback function to handle click.
    */
@@ -38,7 +38,7 @@ export type ButtonProps = {
  * Use a button as call to action.
  */
 const Button: FC<ButtonProps> = ({
-  additionalClasses,
+  className = '',
   ariaLabel,
   children,
   disabled = false,
@@ -54,7 +54,7 @@ const Button: FC<ButtonProps> = ({
     <button
       type={type}
       disabled={disabled}
-      className={`${styles.btn} ${kindClass} ${shapeClass} ${additionalClasses}`}
+      className={`${styles.btn} ${kindClass} ${shapeClass} ${className}`}
       aria-label={ariaLabel}
       {...props}
     >
diff --git a/src/components/atoms/buttons/buttons.module.scss b/src/components/atoms/buttons/buttons.module.scss
index a1c3dba..87c92db 100644
--- a/src/components/atoms/buttons/buttons.module.scss
+++ b/src/components/atoms/buttons/buttons.module.scss
@@ -28,6 +28,10 @@
     cursor: wait;
   }
 
+  &--neutral {
+    background: inherit;
+  }
+
   &--primary {
     background: var(--color-primary);
     border: fun.convert-px(2) solid var(--color-bg);