Add deprecation

packages/block-library/src/list/deprecated.js

@@ -1,13 +1,13 @@
 /**
  * WordPress dependencies
  */
-import { RichText, useBlockProps } from '@wordpress/block-editor';
+import { RichText, InnerBlocks, useBlockProps } from '@wordpress/block-editor';
 
 /**
  * Internal dependencies
  */
 import migrateFontFamily from '../utils/migrate-font-family';
-import { migrateToListV2 } from './utils';
+import { migrateToListV2, migrateTypeToInlineStyle } from './utils';
 
 const v0 = {
 	attributes: {
@@ -138,6 +138,87 @@ const v1 = {
 	migrate: migrateToListV2,
 };
 
+// In #53301 changed to use the inline style instead of type attribute.
+const v2 = {
+	attributes: {
+		ordered: {
+			type: 'boolean',
+			default: false,
+			__experimentalRole: 'content',
+		},
+		values: {
+			type: 'string',
+			source: 'html',
+			selector: 'ol,ul',
+			multiline: 'li',
+			__unstableMultilineWrapperTags: [ 'ol', 'ul' ],
+			default: '',
+			__experimentalRole: 'content',
+		},
+		type: {
+			type: 'string',
+		},
+		start: {
+			type: 'number',
+		},
+		reversed: {
+			type: 'boolean',
+		},
+		placeholder: {
+			type: 'string',
+		},
+	},
+	supports: {
+		anchor: true,
+		className: false,
+		typography: {
+			fontSize: true,
+			lineHeight: true,
+			__experimentalFontFamily: true,
+			__experimentalFontWeight: true,
+			__experimentalFontStyle: true,
+			__experimentalTextTransform: true,
+			__experimentalTextDecoration: true,
+			__experimentalLetterSpacing: true,
+			__experimentalDefaultControls: {
+				fontSize: true,
+			},
+		},
+		color: {
+			gradients: true,
+			link: true,
+			__experimentalDefaultControls: {
+				background: true,
+				text: true,
+			},
+		},
+		spacing: {
+			margin: true,
+			padding: true,
+			__experimentalDefaultControls: {
+				margin: false,
+				padding: false,
+			},
+		},
+		__unstablePasteTextInline: true,
+		__experimentalSelector: 'ol,ul',
+		__experimentalSlashInserter: true,
+	},
+	isEligible( { type } ) {
+		return type && type !== '1';
+	},
+	save( { attributes } ) {
+		const { ordered, type, reversed, start } = attributes;
+		const TagName = ordered ? 'ol' : 'ul';
+		return (
+			<TagName { ...useBlockProps.save( { type, reversed, start } ) }>
+				<InnerBlocks.Content />
+			</TagName>
+		);
+	},
+	migrate: migrateTypeToInlineStyle,
+};
+
 /**
  * New deprecations need to be placed first
  * for them to have higher priority.
@@ -146,4 +227,4 @@ const v1 = {
  *
  * See block-deprecation.md
  */
-export default [ v1, v0 ];
+export default [ v2, v1, v0 ];

packages/block-library/src/list/utils.js

@@ -78,3 +78,23 @@ export function migrateToListV2( attributes ) {
 		listBlock.innerBlocks,
 	];
 }
+
+export function migrateTypeToInlineStyle( attributes ) {
+	const typeStyles = {
+		A: 'upper-alpha',
+		a: 'lower-alpha',
+		I: 'upper-roman',
+		i: 'lower-roman',
+	};
+
+	const { type } = attributes;
+
+	if ( typeStyles[ type ] ) {
+		return {
+			...attributes,
+			type: typeStyles[ type ],
+		};
+	}
+
+	return attributes;
+}