Tabs: remove sequential numbering from new tab labels (#77321)

* Tabs: remove sequential numbering from new tab labels

New tabs no longer receive auto-incremented "Tab N" labels and placeholders; users set their own titles instead.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* Tabs: use consistent default label for new tabs

---------

Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: scruffian <scruffian@git.wordpress.org>
Co-authored-by: mikachan <mikachan@git.wordpress.org>

Author: 3 people

packages/block-library/src/tab/add-tab-toolbar-control.js

@@ -1,7 +1,7 @@
 /**
  * WordPress dependencies
  */
-import { sprintf, __ } from '@wordpress/i18n';
+import { __ } from '@wordpress/i18n';
 import { createBlock } from '@wordpress/blocks';
 import {
 	BlockControls,
@@ -22,13 +22,12 @@ import { useDispatch, useSelect } from '@wordpress/data';
 export default function AddTabToolbarControl( { tabsClientId } ) {
 	const { insertBlock } = useDispatch( blockEditorStore );
 
-	const { tabPanelClientId, tabsMenuClientId, tabCount } = useSelect(
+	const { tabPanelClientId, tabsMenuClientId } = useSelect(
 		( select ) => {
 			if ( ! tabsClientId ) {
 				return {
 					tabPanelClientId: null,
 					tabsMenuClientId: null,
-					tabCount: 0,
 				};
 			}
 			const { getBlocks } = select( blockEditorStore );
@@ -42,7 +41,6 @@ export default function AddTabToolbarControl( { tabsClientId } ) {
 			return {
 				tabPanelClientId: tabPanel?.clientId || null,
 				tabsMenuClientId: tabsMenu?.clientId || null,
-				tabCount: tabPanel?.innerBlocks?.length || 0,
 			};
 		},
 		[ tabsClientId ]
@@ -54,8 +52,7 @@ export default function AddTabToolbarControl( { tabsClientId } ) {
 		}
 
 		const newTabBlock = createBlock( 'core/tab', {
-			/* translators: %d: tab number */
-			label: sprintf( __( 'Tab %d' ), tabCount + 1 ),
+			label: __( 'Tab' ),
 		} );
 		insertBlock( newTabBlock, undefined, tabPanelClientId );
 

packages/block-library/src/tabs-menu-item/edit.js

@@ -6,7 +6,7 @@ import clsx from 'clsx';
 /**
  * WordPress dependencies
  */
-import { __, sprintf } from '@wordpress/i18n';
+import { __ } from '@wordpress/i18n';
 import {
 	useBlockProps,
 	store as blockEditorStore,
@@ -138,11 +138,7 @@ function Edit( {
 				<RichText
 					tagName="span"
 					withoutInteractiveFormatting
-					placeholder={ sprintf(
-						/* translators: %d is the tab index + 1 */
-						__( 'Tab title %d' ),
-						menuItemIndex + 1
-					) }
+					placeholder={ __( 'Tab title' ) }
 					value={ label }
 					onChange={ handleLabelChange }
 				/>

packages/block-library/src/tabs/edit.js

@@ -9,6 +9,7 @@ import {
 } from '@wordpress/block-editor';
 import { useSelect, useDispatch } from '@wordpress/data';
 import { useMemo, useEffect, useRef } from '@wordpress/element';
+import { __ } from '@wordpress/i18n';
 
 /**
  * Internal dependencies
@@ -41,14 +42,14 @@ const TABS_TEMPLATE = [
 			[
 				'core/tab',
 				{
-					label: 'Tab 1',
+					label: __( 'Tab' ),
 				},
 				[ [ 'core/paragraph' ] ],
 			],
 			[
 				'core/tab',
 				{
-					label: 'Tab 2',
+					label: __( 'Tab' ),
 				},
 				[ [ 'core/paragraph' ] ],
 			],