Add support for hiding breadcrumbs in the Site Editor (#49518)

* Add support for hiding breadcrumbs in the Site Editor

* Use preferencesStore

* Add default showBlockBreadcrumbs as true

Matches functionality of the post editor

Author: richtabor

packages/edit-site/src/components/editor/index.js

@@ -67,6 +67,7 @@ export default function Editor() {
 		isInserterOpen,
 		isListViewOpen,
 		showIconLabels,
+		showBlockBreadcrumbs,
 	} = useSelect( ( select ) => {
 		const {
 			getEditedPostContext,
@@ -94,15 +95,22 @@ export default function Editor() {
 				'core/edit-site',
 				'showIconLabels'
 			),
+			showBlockBreadcrumbs: select( preferencesStore ).get(
+				'core/edit-site',
+				'showBlockBreadcrumbs'
+			),
 		};
 	}, [] );
 	const { setEditedPostContext } = useDispatch( editSiteStore );
 
 	const isViewMode = canvasMode === 'view';
 	const isEditMode = canvasMode === 'edit';
 	const showVisualEditor = isViewMode || editorMode === 'visual';
-	const showBlockBreakcrumb =
-		isEditMode && showVisualEditor && blockEditorMode !== 'zoom-out';
+	const shouldShowBlockBreakcrumbs =
+		showBlockBreadcrumbs &&
+		isEditMode &&
+		showVisualEditor &&
+		blockEditorMode !== 'zoom-out';
 	const shouldShowInserter = isEditMode && showVisualEditor && isInserterOpen;
 	const shouldShowListView = isEditMode && showVisualEditor && isListViewOpen;
 	const secondarySidebarLabel = isListViewOpen
@@ -205,7 +213,7 @@ export default function Editor() {
 								)
 							}
 							footer={
-								showBlockBreakcrumb && (
+								shouldShowBlockBreakcrumbs && (
 									<BlockBreadcrumb
 										rootLabelText={ __( 'Template' ) }
 									/>

packages/edit-site/src/components/preferences-modal/index.js

@@ -48,6 +48,13 @@ export default function EditSitePreferencesModal( {
 						) }
 						label={ __( 'Always open list view' ) }
 					/>
+					<EnableFeature
+						featureName="showBlockBreadcrumbs"
+						help={ __(
+							'Shows block breadcrumbs at the bottom of the editor.'
+						) }
+						label={ __( 'Display block breadcrumbs' ) }
+					/>
 				</PreferencesModalSection>
 			),
 		},

packages/edit-site/src/index.js

@@ -67,6 +67,7 @@ export function initializeEditor( id, settings ) {
 		welcomeGuide: true,
 		welcomeGuideStyles: true,
 		showListViewByDefault: false,
+		showBlockBreadcrumbs: true,
 	} );
 
 	dispatch( interfaceStore ).setDefaultComplementaryArea(