Components: Move kebabCase() function from block-editor package and mark it as private API

packages/block-editor/src/components/colors/utils.js

@@ -5,10 +5,15 @@ import { colord, extend } from 'colord';
 import namesPlugin from 'colord/plugins/names';
 import a11yPlugin from 'colord/plugins/a11y';
 
+/**
+ * WordPress dependencies
+ */
+import { privateApis as componentsPrivateApis } from '@wordpress/components';
+
 /**
  * Internal dependencies
  */
-import { kebabCase } from '../../utils/object';
+import { unlock } from '../../lock-unlock';
 
 extend( [ namesPlugin, a11yPlugin ] );
 
@@ -70,6 +75,8 @@ export function getColorClassName( colorContextName, colorSlug ) {
 		return undefined;
 	}
 
+	const { kebabCase } = unlock( componentsPrivateApis );
+
 	return `has-${ kebabCase( colorSlug ) }-${ colorContextName }`;
 }
 

packages/block-editor/src/components/colors/with-colors.js

@@ -3,6 +3,7 @@
  */
 import { useMemo, Component } from '@wordpress/element';
 import { compose, createHigherOrderComponent } from '@wordpress/compose';
+import { privateApis as componentsPrivateApis } from '@wordpress/components';
 
 /**
  * Internal dependencies
@@ -14,7 +15,7 @@ import {
 	getMostReadableColor,
 } from './utils';
 import { useSettings } from '../use-settings';
-import { kebabCase } from '../../utils/object';
+import { unlock } from '../../lock-unlock';
 
 /**
  * Capitalizes the first letter in a string.
@@ -79,6 +80,7 @@ const withEditorColorPalette = () =>
  * @return {Component} The component that can be used as a HOC.
  */
 function createColorHOC( colorTypes, withColorPalette ) {
+	const { kebabCase } = unlock( componentsPrivateApis );
 	const colorMap = colorTypes.reduce( ( colorObject, colorType ) => {
 		return {
 			...colorObject,

packages/block-editor/src/components/font-sizes/utils.js

@@ -1,7 +1,12 @@
+/**
+ * WordPress dependencies
+ */
+import { privateApis as componentsPrivateApis } from '@wordpress/components';
+
 /**
  * Internal dependencies
  */
-import { kebabCase } from '../../utils/object';
+import { unlock } from '../../lock-unlock';
 
 /**
  *  Returns the font size object based on an array of named font sizes and the namedFontSize and customFontSize values.
@@ -64,5 +69,6 @@ export function getFontSizeClass( fontSizeSlug ) {
 		return;
 	}
 
+	const { kebabCase } = unlock( componentsPrivateApis );
 	return `has-${ kebabCase( fontSizeSlug ) }-font-size`;
 }

packages/block-editor/src/components/global-styles/use-global-styles-output.js

@@ -11,6 +11,7 @@ import {
 import { useSelect } from '@wordpress/data';
 import { useContext, useMemo } from '@wordpress/element';
 import { getCSSRules } from '@wordpress/style-engine';
+import { privateApis as componentsPrivateApis } from '@wordpress/components';
 
 /**
  * Internal dependencies
@@ -32,12 +33,9 @@ import { getDuotoneFilter } from '../duotone/utils';
 import { getGapCSSValue } from '../../hooks/gap';
 import { store as blockEditorStore } from '../../store';
 import { LAYOUT_DEFINITIONS } from '../../layouts/definitions';
-import {
-	getValueFromObjectPath,
-	kebabCase,
-	setImmutably,
-} from '../../utils/object';
+import { getValueFromObjectPath, setImmutably } from '../../utils/object';
 import BlockContext from '../block-context';
+import { unlock } from '../../lock-unlock';
 
 // List of block support features that can have their related styles
 // generated under their own feature level selector rather than the block's.
@@ -72,6 +70,8 @@ function compileStyleValue( uncompiledValue ) {
  * @return {Array<Object>} An array of style declarations.
  */
 function getPresetsDeclarations( blockPresets = {}, mergedSettings ) {
+	const { kebabCase } = unlock( componentsPrivateApis );
+
 	return PRESET_METADATA.reduce(
 		( declarations, { path, valueKey, valueFunc, cssVarInfix } ) => {
 			const presetByOrigin = getValueFromObjectPath(
@@ -116,6 +116,8 @@ function getPresetsDeclarations( blockPresets = {}, mergedSettings ) {
  * @return {string} CSS declarations for the preset classes.
  */
 function getPresetsClasses( blockSelector = '*', blockPresets = {} ) {
+	const { kebabCase } = unlock( componentsPrivateApis );
+
 	return PRESET_METADATA.reduce(
 		( declarations, { path, cssVarInfix, classes } ) => {
 			if ( ! classes ) {
@@ -180,6 +182,7 @@ function getPresetsSvgFilters( blockPresets = {} ) {
 }
 
 function flattenTree( input = {}, prefix, token ) {
+	const { kebabCase } = unlock( componentsPrivateApis );
 	let result = [];
 	Object.keys( input ).forEach( ( key ) => {
 		const newKey = prefix + kebabCase( key.replace( '/', '-' ) );
@@ -321,6 +324,7 @@ export function getStylesDeclarations(
 	tree = {},
 	isTemplate = true
 ) {
+	const { kebabCase } = unlock( componentsPrivateApis );
 	const isRoot = ROOT_BLOCK_SELECTOR === selector;
 	const output = Object.entries( STYLE_PROPERTY ).reduce(
 		(

packages/block-editor/src/hooks/font-family.js

@@ -4,13 +4,14 @@
 import { addFilter } from '@wordpress/hooks';
 import { hasBlockSupport } from '@wordpress/blocks';
 import TokenList from '@wordpress/token-list';
+import { privateApis as componentsPrivateApis } from '@wordpress/components';
 
 /**
  * Internal dependencies
  */
 import { shouldSkipSerialization } from './utils';
 import { TYPOGRAPHY_SUPPORT_KEY } from './typography';
-import { kebabCase } from '../utils/object';
+import { unlock } from '../lock-unlock';
 
 export const FONT_FAMILY_SUPPORT_KEY = 'typography.__experimentalFontFamily';
 
@@ -67,6 +68,7 @@ function addSaveProps( props, blockType, attributes ) {
 
 	// Use TokenList to dedupe classes.
 	const classes = new TokenList( props.className );
+	const { kebabCase } = unlock( componentsPrivateApis );
 	classes.add( `has-${ kebabCase( attributes?.fontFamily ) }-font-family` );
 	const newClassName = classes.value;
 	props.className = newClassName ? newClassName : undefined;

packages/block-editor/src/hooks/layout.js

@@ -15,6 +15,7 @@ import {
 	ButtonGroup,
 	ToggleControl,
 	PanelBody,
+	privateApis as componentsPrivateApis,
 } from '@wordpress/components';
 import { __ } from '@wordpress/i18n';
 
@@ -27,8 +28,8 @@ import { useSettings } from '../components/use-settings';
 import { getLayoutType, getLayoutTypes } from '../layouts';
 import { useBlockEditingMode } from '../components/block-editing-mode';
 import { LAYOUT_DEFINITIONS } from '../layouts/definitions';
-import { kebabCase } from '../utils/object';
 import { useBlockSettings, useStyleOverride } from './utils';
+import { unlock } from '../lock-unlock';
 
 const layoutBlockSupportKey = 'layout';
 
@@ -48,6 +49,7 @@ function hasLayoutBlockSupport( blockName ) {
  * @return { Array } Array of CSS classname strings.
  */
 export function useLayoutClasses( blockAttributes = {}, blockName = '' ) {
+	const { kebabCase } = unlock( componentsPrivateApis );
 	const rootPaddingAlignment = useSelect( ( select ) => {
 		const { getSettings } = select( blockEditorStore );
 		return getSettings().__experimentalFeatures

packages/block-editor/src/hooks/use-typography-props.js

@@ -3,6 +3,11 @@
  */
 import classnames from 'classnames';
 
+/**
+ * WordPress dependencies
+ */
+import { privateApis as componentsPrivateApis } from '@wordpress/components';
+
 /**
  * Internal dependencies
  */
@@ -12,7 +17,7 @@ import {
 	getTypographyFontSizeValue,
 	getFluidTypographyOptionsFromSettings,
 } from '../components/global-styles/typography-utils';
-import { kebabCase } from '../utils/object';
+import { unlock } from '../lock-unlock';
 
 /*
  * This utility is intended to assist where the serialization of the typography
@@ -29,6 +34,7 @@ import { kebabCase } from '../utils/object';
  * @return {Object} Typography block support derived CSS classes & styles.
  */
 export function getTypographyClassesAndStyles( attributes, settings ) {
+	const { kebabCase } = unlock( componentsPrivateApis );
 	let typographyStyles = attributes?.style?.typography || {};
 	const fluidTypographySettings =
 		getFluidTypographyOptionsFromSettings( settings );

packages/block-editor/src/private-apis.js

@@ -5,7 +5,6 @@ import * as globalStyles from './components/global-styles';
 import { ExperimentalBlockEditorProvider } from './components/provider';
 import { lock } from './lock-unlock';
 import { getRichTextValues } from './components/rich-text/get-rich-text-values';
-import { kebabCase } from './utils/object';
 import ResizableBoxPopover from './components/resizable-box-popover';
 import { ComposedPrivateInserter as PrivateInserter } from './components/inserter';
 import { PrivateListView } from './components/list-view';
@@ -37,7 +36,6 @@ lock( privateApis, {
 	ExperimentalBlockEditorProvider,
 	getDuotoneFilter,
 	getRichTextValues,
-	kebabCase,
 	PrivateInserter,
 	PrivateListView,
 	ResizableBoxPopover,

packages/block-editor/src/private-apis.native.js

@@ -3,7 +3,6 @@
  */
 import * as globalStyles from './components/global-styles';
 import { ExperimentalBlockEditorProvider } from './components/provider';
-import { kebabCase } from './utils/object';
 import { lock } from './lock-unlock';
 
 /**
@@ -12,6 +11,5 @@ import { lock } from './lock-unlock';
 export const privateApis = {};
 lock( privateApis, {
 	...globalStyles,
-	kebabCase,
 	ExperimentalBlockEditorProvider,
 } );

packages/block-editor/src/utils/object.js

@@ -1,38 +1,3 @@
-/**
- * External dependencies
- */
-import { paramCase } from 'change-case';
-
-/**
- * Converts any string to kebab case.
- * Backwards compatible with Lodash's `_.kebabCase()`.
- * Backwards compatible with `_wp_to_kebab_case()`.
- *
- * @see https://lodash.com/docs/4.17.15#kebabCase
- * @see https://developer.wordpress.org/reference/functions/_wp_to_kebab_case/
- *
- * @param {string} str String to convert.
- * @return {string} Kebab-cased string
- */
-export function kebabCase( str ) {
-	let input = str;
-	if ( typeof str !== 'string' ) {
-		input = str?.toString?.() ?? '';
-	}
-
-	// See https://github.com/lodash/lodash/blob/b185fcee26b2133bd071f4aaca14b455c2ed1008/lodash.js#L4970
-	input = input.replace( /['\u2019]/, '' );
-
-	return paramCase( input, {
-		splitRegexp: [
-			/(?!(?:1ST|2ND|3RD|[4-9]TH)(?![a-z]))([a-z0-9])([A-Z])/g, // fooBar => foo-bar, 3Bar => 3-bar
-			/(?!(?:1st|2nd|3rd|[4-9]th)(?![a-z]))([0-9])([a-z])/g, // 3bar => 3-bar
-			/([A-Za-z])([0-9])/g, // Foo3 => foo-3, foo3 => foo-3
-			/([A-Z])([A-Z][a-z])/g, // FOOBar => foo-bar
-		],
-	} );
-}
-
 /**
  * Immutably sets a value inside an object. Like `lodash#set`, but returning a
  * new object. Treats nullish initial values as empty objects. Clones any

packages/block-editor/src/utils/test/object.js

@@ -1,102 +1,7 @@
 /**
  * Internal dependencies
  */
-import { kebabCase, setImmutably } from '../object';
-
-describe( 'kebabCase', () => {
-	it( 'separates lowercase letters, followed by uppercase letters', () => {
-		expect( kebabCase( 'fooBar' ) ).toEqual( 'foo-bar' );
-	} );
-
-	it( 'separates numbers, followed by uppercase letters', () => {
-		expect( kebabCase( '123FOO' ) ).toEqual( '123-foo' );
-	} );
-
-	it( 'separates numbers, followed by lowercase characters', () => {
-		expect( kebabCase( '123bar' ) ).toEqual( '123-bar' );
-	} );
-
-	it( 'separates uppercase letters, followed by numbers', () => {
-		expect( kebabCase( 'FOO123' ) ).toEqual( 'foo-123' );
-	} );
-
-	it( 'separates lowercase letters, followed by numbers', () => {
-		expect( kebabCase( 'foo123' ) ).toEqual( 'foo-123' );
-	} );
-
-	it( 'separates uppercase groups from capitalized groups', () => {
-		expect( kebabCase( 'FOOBar' ) ).toEqual( 'foo-bar' );
-	} );
-
-	it( 'removes any non-dash special characters', () => {
-		expect(
-			kebabCase( 'foo±§!@#$%^&*()-_=+/?.>,<\\|{}[]`~\'";:bar' )
-		).toEqual( 'foo-bar' );
-	} );
-
-	it( 'removes any spacing characters', () => {
-		expect( kebabCase( ' foo \t \n \r \f \v bar ' ) ).toEqual( 'foo-bar' );
-	} );
-
-	it( 'groups multiple dashes into a single one', () => {
-		expect( kebabCase( 'foo---bar' ) ).toEqual( 'foo-bar' );
-	} );
-
-	it( 'returns an empty string unchanged', () => {
-		expect( kebabCase( '' ) ).toEqual( '' );
-	} );
-
-	it( 'returns an existing kebab case string unchanged', () => {
-		expect( kebabCase( 'foo-123-bar' ) ).toEqual( 'foo-123-bar' );
-	} );
-
-	it( 'returns an empty string if any nullish type is passed', () => {
-		expect( kebabCase( undefined ) ).toEqual( '' );
-		expect( kebabCase( null ) ).toEqual( '' );
-	} );
-
-	it( 'converts any unexpected non-nullish type to a string', () => {
-		expect( kebabCase( 12345 ) ).toEqual( '12345' );
-		expect( kebabCase( [] ) ).toEqual( '' );
-		expect( kebabCase( {} ) ).toEqual( 'object-object' );
-	} );
-
-	/**
-	 * Should cover all test cases of `_wp_to_kebab_case()`.
-	 *
-	 * @see https://developer.wordpress.org/reference/functions/_wp_to_kebab_case/
-	 * @see https://github.com/WordPress/wordpress-develop/blob/76376fdbc3dc0b3261de377dffc350677345e7ba/tests/phpunit/tests/functions/wpToKebabCase.php#L35-L62
-	 */
-	it.each( [
-		[ 'white', 'white' ],
-		[ 'white+black', 'white-black' ],
-		[ 'white:black', 'white-black' ],
-		[ 'white*black', 'white-black' ],
-		[ 'white.black', 'white-black' ],
-		[ 'white black', 'white-black' ],
-		[ 'white	black', 'white-black' ],
-		[ 'white-to-black', 'white-to-black' ],
-		[ 'white2white', 'white-2-white' ],
-		[ 'white2nd', 'white-2nd' ],
-		[ 'white2ndcolor', 'white-2-ndcolor' ],
-		[ 'white2ndColor', 'white-2nd-color' ],
-		[ 'white2nd_color', 'white-2nd-color' ],
-		[ 'white23color', 'white-23-color' ],
-		[ 'white23', 'white-23' ],
-		[ '23color', '23-color' ],
-		[ 'white4th', 'white-4th' ],
-		[ 'font2xl', 'font-2-xl' ],
-		[ 'whiteToWhite', 'white-to-white' ],
-		[ 'whiteTOwhite', 'white-t-owhite' ],
-		[ 'WHITEtoWHITE', 'whit-eto-white' ],
-		[ 42, '42' ],
-		[ "i've done", 'ive-done' ],
-		[ '#ffffff', 'ffffff' ],
-		[ '$ffffff', 'ffffff' ],
-	] )( 'converts %s properly to %s', ( input, expected ) => {
-		expect( kebabCase( input ) ).toEqual( expected );
-	} );
-} );
+import { setImmutably } from '../object';
 
 describe( 'setImmutably', () => {
 	describe( 'handling falsy values properly', () => {