CYS: fix logic to disable mover buttons (woocommerce#48502)

* CYS: fix logic to disable mover buttons

* Add changefile(s) from automation for the following project(s): woocommerce

---------

Co-authored-by: github-actions <github-actions@github.com>

plugins/woocommerce-admin/client/customize-store/assembler-hub/toolbar/toolbar.tsx

@@ -94,19 +94,35 @@ export const Toolbar = () => {
 
 		setIsHomepageSidebarOpen( isHomepageUrl( path ) );
 	}, [ query ] );
-	const { isPreviousBlockTemplatePart, isNextBlockTemplatePart } =
-		useMemo( () => {
-			return {
-				isPreviousBlockTemplatePart:
-					previousBlock?.name === 'core/template-part',
-				isNextBlockTemplatePart:
-					nextBlock?.name === 'core/template-part',
-			};
-		}, [ nextBlock?.name, previousBlock?.name ] );
 
 	const selectedBlockClientId =
 		currentBlock?.clientId ?? firstBlock?.clientId;
 
+	const { isBlockMoverUpButtonDisabled, isBlockMoverDownButtonDisabled } =
+		useMemo( () => {
+			const isPreviousBlockTemplatePart =
+				previousBlock?.name === 'core/template-part';
+			const isNextBlockTemplatePart =
+				nextBlock?.name === 'core/template-part';
+
+			return {
+				isBlockMoverUpButtonDisabled:
+					isPreviousBlockTemplatePart ||
+					// The first block is the header, which is not movable.
+					allBlocks[ 1 ]?.clientId === selectedBlockClientId,
+				isBlockMoverDownButtonDisabled:
+					isNextBlockTemplatePart ||
+					// The last block is the footer, which is not movable.
+					allBlocks[ allBlocks.length - 2 ]?.clientId ===
+						selectedBlockClientId,
+			};
+		}, [
+			allBlocks,
+			nextBlock?.name,
+			previousBlock?.name,
+			selectedBlockClientId,
+		] );
+
 	const isNoBlocksPlaceholderPresent =
 		useIsNoBlocksPlaceholderPresent( allBlocks );
 
@@ -136,10 +152,10 @@ export const Toolbar = () => {
 							<BlockMover
 								clientIds={ [ selectedBlockClientId ] }
 								isBlockMoverUpButtonDisabled={
-									isPreviousBlockTemplatePart
+									isBlockMoverUpButtonDisabled
 								}
 								isBlockMoverDownButtonDisabled={
-									isNextBlockTemplatePart
+									isBlockMoverDownButtonDisabled
 								}
 							/>
 						</ToolbarGroup>

plugins/woocommerce/changelog/48502-fix-cys-improve-logic-blocker-mover-disabled

@@ -0,0 +1,4 @@
+Significance: minor
+Type: fix
+
+CYS: fix logic to disable mover buttons.  </details>  <details>  <summary>Changelog Entry Comment</summary>