Inner block slider pages

src/components/InnerBlockSlider/README.md

@@ -104,6 +104,7 @@ The above example code creates a slider using the core image block as each slide
 | `slideLimit`     | `integer`      | `10`    | Maximum number of slides.                     |
 | `parentBlockId`  | `string`       | `''`    | Client ID of parent block. This is required.  |
 | `showNavigation` | `bool`         | `true`  | Whether to show slide navigation/pagination.  |
+| `perPage`        | `integer`      | `1`     | Show multiple slides per page.                |
 
 ## Examples
 

src/components/InnerBlockSlider/inner-block-single-display.js

@@ -14,16 +14,18 @@ import { useInnerBlocksProps } from '@wordpress/block-editor';
  * @param {boolean}                 props.className        Class name.
  * @param {boolean|React.ReactNode} props.renderAppender   Appender.
  * @param {boolean}                 props.captureToolbars  Passed through to inner block props.
+ * @param {number}                  props.perPage          Number of items to display per page.
  * @returns {React.ReactNode} Component.
  */
 function InnerBlocksDisplaySingle( {
 	className,
 	allowedBlocks,
 	template,
-	currentItemIndex,
+	currentItemIndex = 0,
 	parentBlockId,
-	renderAppender,
-	captureToolbars,
+	renderAppender = false,
+	captureToolbars = true,
+	perPage = 1,
 } ) {
 	const styleRef = useRef();
 
@@ -42,15 +44,35 @@ function InnerBlocksDisplaySingle( {
 		}
 	);
 
+	/**
+	 * Construct the CSS for this component.
+	 *
+	 * Hide all slides except the current active slide.
+	 * Account for pages - show current slide + perPage slides.
+	 * Display grid if perPage > 1.
+	 */
 	useEffect( () => {
 		if ( ! styleRef.current ) {
 			return;
 		}
 
-		styleRef.current.innerHTML = `#inner-block-display-single-${ parentBlockId } > *:not(:nth-child(${
-			currentItemIndex + 1
-		}) ) { display: none; }`;
-	}, [ currentItemIndex, styleRef, parentBlockId ] );
+		const containerSelector = `#inner-block-display-single-${ parentBlockId }`;
+
+		let style = '';
+
+		if ( perPage > 1 ) {
+			style += `${containerSelector} { display: grid; grid-template-columns: repeat(${ perPage }, 1fr); gap: 1em; }`;
+		}
+
+		style += `${containerSelector} > *:not(`;
+		for ( let i = 1; i <= perPage; i++ ) {
+			style += `:nth-child(${ currentItemIndex + i }), `;
+		}
+		style = style.slice( 0, -2 ) + ')'; // Slice to remove trailing comma and space.
+		style += '{ display: none; }';
+
+		styleRef.current.innerHTML = `${style}`;
+	}, [ currentItemIndex, styleRef, parentBlockId, perPage ] );
 
 	return (
 		<>
@@ -60,12 +82,6 @@ function InnerBlocksDisplaySingle( {
 	);
 }
 
-InnerBlocksDisplaySingle.defaultProps = {
-	currentItemIndex: 0,
-	renderAppender: false,
-	captureToolbars: true,
-};
-
 InnerBlocksDisplaySingle.propTypes = {
 	parentBlockId: PropTypes.string.isRequired,
 	allowedBlocks: PropTypes.arrayOf( PropTypes.string ).isRequired,
@@ -76,6 +92,7 @@ InnerBlocksDisplaySingle.propTypes = {
 		PropTypes.bool,
 		PropTypes.element,
 	] ),
+	perPage: PropTypes.number,
 };
 
 export default InnerBlocksDisplaySingle;

src/components/InnerBlockSlider/inner-block-slider-controlled.js

@@ -10,24 +10,26 @@ import Navigation from './navigation';
 /**
  * InnerBlockSlider component.
  *
- * @param {object} props                       Component props.
- * @param {string} props.parentBlockId         Parent block clientId.
- * @param {string} props.allowedBlock          Allowed block type.
- * @param {Array}  props.template              Initial block template.
- * @param {number} props.slideLimit            Maximum allowed slides.
- * @param {number} props.currentItemIndex      Override current index, if managing this externally.
+ * @param {object}   props                     Component props.
+ * @param {string}   props.parentBlockId       Parent block clientId.
+ * @param {string}   props.allowedBlock        Allowed block type.
+ * @param {Array}    props.template            Initial block template.
+ * @param {number}   props.slideLimit          Maximum allowed slides.
+ * @param {number}   props.currentItemIndex    Override current index, if managing this externally.
  * @param {Function} props.setCurrentItemIndex Override set item Index
  * @param {Function} props.showNavigation      Override display nav
+ * @param {number}   props.perPage             Number of items to display per page.
  * @returns {React.ReactNode} Component.
  */
 const InnerBlockSliderControlled = ( {
 	parentBlockId,
 	allowedBlock,
 	template,
-	slideLimit,
+	slideLimit = 10,
 	currentItemIndex,
 	setCurrentItemIndex,
-	showNavigation,
+	showNavigation = true,
+	perPage = 1,
 } ) => {
 	const innerBlockTemplate = template || [ [ allowedBlock ] ];
 
@@ -104,6 +106,7 @@ const InnerBlockSliderControlled = ( {
 				className="slides"
 				currentItemIndex={ currentItemIndex }
 				parentBlockId={ parentBlockId }
+				perPage={ perPage }
 				template={ innerBlockTemplate }
 			/>
 
@@ -124,12 +127,6 @@ const InnerBlockSliderControlled = ( {
 	);
 };
 
-InnerBlockSliderControlled.defaultProps = {
-	slideLimit: 10,
-	template: null,
-	showNavigation: true,
-};
-
 InnerBlockSliderControlled.propTypes = {
 	parentBlockId: PropTypes.string.isRequired,
 	allowedBlock: PropTypes.string.isRequired,