Add a Products by Rating filter block

assets/js/base/components/filter-placeholder/style.scss

@@ -15,7 +15,8 @@
 	.wc-block-stock-filter__title,
 	.wc-block-price-filter__title,
 	.wc-block-active-filters__title,
-	.wc-block-attribute-filter__title {
+	.wc-block-attribute-filter__title,
+	.wc-block-rating-filter__title {
 		margin: 0;
 		height: 1em;
 	}

assets/js/base/components/product-list/product-list.tsx

@@ -132,6 +132,11 @@ const ProductList = ( {
 		'stock_status',
 		[]
 	);
+	const [ productRating, setProductRating ] = useQueryStateByKey(
+		'rating',
+		[]
+	);
+
 	const [ minPrice, setMinPrice ] = useQueryStateByKey( 'min_price' );
 	const [ maxPrice, setMaxPrice ] = useQueryStateByKey( 'max_price' );
 
@@ -215,6 +220,7 @@ const ProductList = ( {
 	const hasFilters =
 		productAttributes.length > 0 ||
 		productStockStatus.length > 0 ||
+		productRating.length > 0 ||
 		Number.isFinite( minPrice ) ||
 		Number.isFinite( maxPrice );
 
@@ -231,6 +237,7 @@ const ProductList = ( {
 					resetCallback={ () => {
 						setProductAttributes( [] );
 						setProductStockStatus( [] );
+						setProductRating( [] );
 						setMinPrice( null );
 						setMaxPrice( null );
 					} }

assets/js/base/components/product-rating/index.tsx

@@ -0,0 +1,64 @@
+/**
+ * External dependencies
+ */
+import classNames from 'classnames';
+import { __, sprintf } from '@wordpress/i18n';
+
+/**
+ * Internal dependencies
+ */
+import './style.scss';
+
+const Rating = ( {
+	className,
+	key,
+	rating,
+	ratedProductsCount,
+}: RatingProps ): JSX.Element => {
+	const ratingClassName = classNames(
+		'wc-block-components-product-rating',
+		className
+	);
+
+	const starStyle = {
+		width: ( rating / 5 ) * 100 + '%',
+	};
+
+	const ratingText = sprintf(
+		/* translators: %f is referring to the average rating value */
+		__( 'Rated %f out of 5', 'woo-gutenberg-products-block' ),
+		rating
+	);
+
+	const ratingHTML = {
+		__html: sprintf(
+			/* translators: %f is referring to the rating value */
+			__( 'Rated %f out of 5', 'woo-gutenberg-products-block' ),
+			sprintf( '<strong class="rating">%f</strong>', rating )
+		),
+	};
+
+	return (
+		<div className={ ratingClassName } key={ key }>
+			<div
+				className={ 'wc-block-components-product-rating__stars' }
+				role="img"
+				aria-label={ ratingText }
+			>
+				<span
+					style={ starStyle }
+					dangerouslySetInnerHTML={ ratingHTML }
+				/>
+			</div>
+			{ ratedProductsCount ? `(${ ratedProductsCount })` : null }
+		</div>
+	);
+};
+interface RatingProps {
+	className: string;
+	key: 0 | 1 | 2 | 3 | 4 | 5;
+	rating: 0 | 1 | 2 | 3 | 4 | 5;
+	ratedProductsCount: number;
+}
+
+export default Rating;

assets/js/base/components/product-rating/style.scss

@@ -0,0 +1,7 @@
+.wc-block-components-product-rating {
+	&__stars {
+		display: inline-block;
+		line-height: 1;
+		height: 1em;
+	}
+}

assets/js/base/context/hooks/collections/use-collection-data.ts

@@ -45,13 +45,15 @@ interface UseCollectionDataProps {
 	};
 	queryPrices?: boolean;
 	queryStock?: boolean;
+	queryRating?: boolean;
 	queryState: Record< string, unknown >;
 }
 
 export const useCollectionData = ( {
 	queryAttribute,
 	queryPrices,
 	queryStock,
+	queryRating,
 	queryState,
 }: UseCollectionDataProps ) => {
 	let context = useQueryStateContext();
@@ -66,10 +68,13 @@ export const useCollectionData = ( {
 		calculateStockStatusQueryState,
 		setCalculateStockStatusQueryState,
 	] = useQueryStateByKey( 'calculate_stock_status_counts', null, context );
+	const [ calculateRatingQueryState, setCalculateRatingQueryState ] =
+		useQueryStateByKey( 'calculate_rating_counts', null, context );
 
 	const currentQueryAttribute = useShallowEqual( queryAttribute || {} );
 	const currentQueryPrices = useShallowEqual( queryPrices );
 	const currentQueryStock = useShallowEqual( queryStock );
+	const currentQueryRating = useShallowEqual( queryRating );
 
 	useEffect( () => {
 		if (
@@ -124,6 +129,19 @@ export const useCollectionData = ( {
 		calculateStockStatusQueryState,
 	] );
 
+	useEffect( () => {
+		if (
+			calculateRatingQueryState !== currentQueryRating &&
+			currentQueryRating !== undefined
+		) {
+			setCalculateRatingQueryState( currentQueryRating );
+		}
+	}, [
+		currentQueryRating,
+		setCalculateRatingQueryState,
+		calculateRatingQueryState,
+	] );
+
 	// Defer the select query so all collection-data query vars can be gathered.
 	const [ shouldSelect, setShouldSelect ] = useState( false );
 	const [ debouncedShouldSelect ] = useDebounce( shouldSelect, 200 );

assets/js/blocks/active-filters/block.tsx

@@ -185,7 +185,7 @@ const ActiveFiltersBlock = ( {
 	] );
 
 	const [ productRatings, setProductRatings ] =
-		useQueryStateByKey( 'ratings' );
+		useQueryStateByKey( 'rating' );
 
 	/**
 	 * Parse the filter URL to set the active rating fitlers.
@@ -348,6 +348,7 @@ const ActiveFiltersBlock = ( {
 								setMaxPrice( undefined );
 								setProductAttributes( [] );
 								setProductStockStatus( [] );
+								setProductRatings( [] );
 							}
 						} }
 					>

assets/js/blocks/rating-filter/attributes.ts

@@ -0,0 +1,11 @@
+/**
+ * External dependencies
+ */
+import { __ } from '@wordpress/i18n';
+
+export const blockAttributes = {
+	heading: {
+		type: 'string',
+		default: __( 'Filter by rating', 'woo-gutenberg-products-block' ),
+	},
+};

assets/js/blocks/rating-filter/block.json

@@ -0,0 +1,34 @@
+{
+	"name": "woocommerce/rating-filter",
+	"version": "1.0.0",
+	"title": "Filter by Rating",
+	"description": "Enable customers to filter the product grid by rating.",
+	"category": "woocommerce",
+	"keywords": [ "WooCommerce" ],
+	"supports": {
+		"html": false,
+		"multiple": false
+	},
+	"example": {
+		"attributes": {
+			"isPreview": true
+		}
+	},
+	"attributes": {
+		"className": {
+			"type": "string",
+			"default": ""
+		},
+		"headingLevel": {
+			"type": "number",
+			"default": 3
+		},
+		"isPreview": {
+			"type": "boolean",
+			"default": false
+		}
+	},
+	"textdomain": "woo-gutenberg-products-block",
+	"apiVersion": 2,
+	"$schema": "https://schemas.wp.org/trunk/block.json"
+}