Update to use coreExtensionsData.title

Signed-off-by: Adam Kunicki <kunickiaj@gmail.com>

packages/app-next/src/App.tsx

@@ -19,7 +19,6 @@ import { pagesPlugin } from './examples/pagesPlugin';
 import notFoundErrorPage from './examples/notFoundErrorPageExtension';
 import userSettingsPlugin from '@backstage/plugin-user-settings/alpha';
 import homePlugin from '@backstage/plugin-home/alpha';
-import { titleExtensionDataRef } from '@backstage/plugin-home-react/alpha';
 
 import {
   coreExtensionData,
@@ -103,11 +102,11 @@ const customHomePageModule = createFrontendModule({
     createExtension({
       name: 'my-home-page',
       attachTo: { id: 'page:home', input: 'props' },
-      output: [coreExtensionData.reactElement, titleExtensionDataRef],
+      output: [coreExtensionData.reactElement, coreExtensionData.title],
       factory() {
         return [
           coreExtensionData.reactElement(homePage),
-          titleExtensionDataRef('just a title'),
+          coreExtensionData.title('just a title'),
         ];
       },
     }),

plugins/home-react/report-alpha.api.md

@@ -83,13 +83,6 @@ export const homeReactTranslationRef: TranslationRef<
   }
 >;
 
-// @alpha
-export const titleExtensionDataRef: ConfigurableExtensionDataRef<
-  string,
-  'title',
-  {}
->;
-
 // @alpha
 export const widgetMetadataRef: ConfigurableExtensionDataRef<
   {

plugins/home-react/src/alpha.ts

@@ -24,7 +24,6 @@
  * @packageDocumentation
  */
 export { homeReactTranslationRef } from './translation';
-export { titleExtensionDataRef } from './alpha/dataRefs';
 export {
   HomepageWidgetBlueprint,
   widgetMetadataRef,

plugins/home-react/src/alpha/dataRefs.ts

@@ -1,26 +0,0 @@
-/*
- * Copyright 2025 The Backstage Authors
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import { createExtensionDataRef } from '@backstage/frontend-plugin-api';
-
-/**
- * Title data supplied to the home page extension when composing via the new frontend system.
- *
- * @alpha
- */
-export const titleExtensionDataRef = createExtensionDataRef<string>().with({
-  id: 'title',
-});

plugins/home/report-alpha.api.md

@@ -106,7 +106,7 @@ const _default: OverridableFrontendPlugin<
             >
           | ConfigurableExtensionDataRef<
               string,
-              'title',
+              'core.title',
               {
                 optional: true;
               }
@@ -139,7 +139,7 @@ export const HomepageBlueprint: ExtensionBlueprint<{
     | ExtensionDataRef<JSX_2.Element, 'core.reactElement', {}>
     | ExtensionDataRef<
         string,
-        'title',
+        'core.title',
         {
           optional: true;
         }

plugins/home/src/alpha.tsx

@@ -39,7 +39,6 @@ import {
 } from '@backstage/frontend-plugin-api';
 import { VisitListener } from './components/';
 import { visitsApiRef, VisitsStorageApi, VisitsWebStorageApi } from './api';
-import { titleExtensionDataRef } from '@backstage/plugin-home-react/alpha';
 import HomeIcon from '@material-ui/icons/Home';
 
 const rootRouteRef = createRouteRef();
@@ -49,7 +48,7 @@ const homePage = PageBlueprint.makeWithOverrides({
     props: createExtensionInput(
       [
         coreExtensionData.reactElement.optional(),
-        titleExtensionDataRef.optional(),
+        coreExtensionData.title.optional(),
       ],
       {
         singleton: true,
@@ -63,10 +62,10 @@ const homePage = PageBlueprint.makeWithOverrides({
       routeRef: rootRouteRef,
       loader: () =>
         import('./components/').then(m => (
-          <m.HomepageCompositionRoot
-            children={inputs.props?.get(coreExtensionData.reactElement)}
-            title={inputs.props?.get(titleExtensionDataRef)}
-          />
+            <m.HomepageCompositionRoot
+              children={inputs.props?.get(coreExtensionData.reactElement)}
+              title={inputs.props?.get(coreExtensionData.title)}
+            />,
         )),
     });
   },

plugins/home/src/alpha/HomepageBlueprint.tsx

@@ -25,7 +25,6 @@ import {
 import { Fragment, type ReactElement, type ReactNode } from 'react';
 import { CustomHomepageGrid } from '../components';
 import type { CustomHomepageGridProps } from '../components';
-import { titleExtensionDataRef } from '@backstage/plugin-home-react/alpha';
 
 /**
  * Arguments provided to the homepage renderer.
@@ -77,7 +76,7 @@ const DEFAULT_ATTACH_POINT = Object.freeze({
 export const HomepageBlueprint = createExtensionBlueprint({
   kind: 'home-page',
   attachTo: DEFAULT_ATTACH_POINT,
-  output: [coreExtensionData.reactElement, titleExtensionDataRef.optional()],
+  output: [coreExtensionData.reactElement, coreExtensionData.title.optional()],
   inputs: {
     widgets: createExtensionInput([coreExtensionData.reactElement]),
   },
@@ -107,7 +106,7 @@ export const HomepageBlueprint = createExtensionBlueprint({
     );
 
     if (params.title) {
-      yield titleExtensionDataRef(params.title);
+      yield coreExtensionData.title(params.title);
     }
   },
 });