DimensionControl: Add flag to remove bottom margin

.eslintrc.js

@@ -292,6 +292,7 @@ module.exports = {
 					...[
 						'CheckboxControl',
 						'ComboboxControl',
+						'DimensionControl',
 						'FocalPointPicker',
 						'RangeControl',
 						'SearchControl',

packages/block-editor/src/components/responsive-block-control/README.md

@@ -64,6 +64,7 @@ registerBlockType( 'my-plugin/my-block', {
 		const paddingControl = ( labelComponent, viewport ) => {
 			return (
 				<DimensionControl
+					__nextHasNoMarginBottom
 					label={ viewport.label }
 					onChange={ // handle update to padding value here  }
 					value={ paddingSize }

packages/components/src/dimension-control/README.md

@@ -17,6 +17,7 @@ export default function MyCustomDimensionControl() {
 
 	return (
 		<DimensionControl
+			__nextHasNoMarginBottom
 			label={ 'Padding' }
 			icon={ 'desktop' }
 			onChange={ ( value ) => setPaddingSize( value ) }
@@ -91,3 +92,11 @@ A callback which is triggered when a spacing size value changes (is selected/cli
 -   **Required:** No
 
 A string of classes to be added to the control component.
+
+### __nextHasNoMarginBottom
+
+Start opting into the new margin-free styles that will become the default in a future version.
+
+-   Type: `Boolean`
+-   Required: No
+-   Default: `false`

packages/components/src/dimension-control/index.tsx

@@ -31,6 +31,7 @@ import type { SelectControlSingleSelectionProps } from '../select-control/types'
  *
  * 	return (
  * 		<DimensionControl
+ * 			__nextHasNoMarginBottom
  * 			label={ 'Padding' }
  * 			icon={ 'desktop' }
  * 			onChange={ ( value ) => setPaddingSize( value ) }
@@ -43,6 +44,7 @@ import type { SelectControlSingleSelectionProps } from '../select-control/types'
 export function DimensionControl( props: DimensionControlProps ) {
 	const {
 		__next40pxDefaultSize = false,
+		__nextHasNoMarginBottom = false,
 		label,
 		value,
 		sizes = sizesTable,
@@ -87,6 +89,7 @@ export function DimensionControl( props: DimensionControlProps ) {
 	return (
 		<SelectControl
 			__next40pxDefaultSize={ __next40pxDefaultSize }
+			__nextHasNoMarginBottom={ __nextHasNoMarginBottom }
 			className={ clsx( className, 'block-editor-dimension-control' ) }
 			label={ selectLabel }
 			hideLabelFromVision={ false }

packages/components/src/dimension-control/types.ts

@@ -2,6 +2,7 @@
  * Internal dependencies
  */
 import type { IconType } from '../icon';
+import type { SelectControlProps } from '../select-control/types';
 
 export type Size = {
 	/**
@@ -14,7 +15,10 @@ export type Size = {
 	slug: string;
 };
 
-export type DimensionControlProps = {
+export type DimensionControlProps = Pick<
+	SelectControlProps,
+	'__next40pxDefaultSize' | '__nextHasNoMarginBottom'
+> & {
 	/**
 	 * Label for the control.
 	 */
@@ -45,10 +49,4 @@ export type DimensionControlProps = {
 	 * @default ''
 	 */
 	className?: string;
-	/**
-	 * Start opting into the larger default height that will become the default size in a future version.
-	 *
-	 * @default false
-	 */
-	__next40pxDefaultSize?: boolean;
 };