Premium Analytics: add Top posts & pages widget to Storybook

projects/js-packages/storybook/changelog/register-premium-analytics-widgets-path

@@ -0,0 +1,3 @@
+Significance: patch
+Type: changed
+Comment: Register the premium-analytics widgets directory as a story discovery path.

projects/js-packages/storybook/storybook/projects.js

@@ -14,6 +14,7 @@ export const projects = [
 	'projects/js-packages/social-logos/src/react',
 	'projects/packages/my-jetpack/_inc/components',
 	'projects/packages/premium-analytics/packages',
+	'projects/packages/premium-analytics/widgets',
 	'projects/packages/publicize/_inc/components',
 	'projects/packages/search/src/dashboard/components',
 	'projects/packages/videopress/src/client/admin/components',

projects/packages/premium-analytics/changelog/add-top-posts-widget-storybook

@@ -0,0 +1,4 @@
+Significance: patch
+Type: added
+
+Storybook: Add a prop-driven Top posts & pages widget story under Packages/Premium Analytics/Widgets.

projects/packages/premium-analytics/packages/widgets-toolkit/src/components/chart-leaderboard/leaderboard-chart.tsx

@@ -5,7 +5,8 @@ import {
 	LeaderboardChartUnresponsive as BaseLeaderboardChart,
 	useGlobalChartsContext,
 	Legend,
-	hexToRgba,
+	lightenHexColor,
+	normalizeColorToHex,
 } from '@automattic/charts';
 import { formatMetricValue } from '@jetpack-premium-analytics/formatters';
 import { Icon, Stack } from '@wordpress/ui';
@@ -136,16 +137,21 @@ export function LeaderboardChart( {
 	);
 
 	/**
-	 * Get chart colors for legend
+	 * Bar color for overlay-label mode.
+	 *
+	 * The label sits on top of the bar, so the bar needs to read as a faint
+	 * tint of the primary color. We can't pass a translucent color through the
+	 * chart's `primaryColor` prop — it resolves the value via getElementStyles,
+	 * which strips the alpha channel. Instead we pre-blend the primary with
+	 * white to produce the opaque equivalent of an 8% alpha fill.
 	 */
-	const chartColors = useMemo( () => {
-		const { color: primaryColor } = getElementStyles( { index: 0 } );
-		if ( ! withComparison ) {
-			return { primaryColor };
+	const barColor = useMemo( () => {
+		if ( ! withOverlayLabel ) {
+			return undefined;
 		}
-		const { color: secondaryColor } = getElementStyles( { index: 1 } );
-		return { primaryColor, secondaryColor };
-	}, [ withComparison, getElementStyles ] );
+		const { color: primaryColor } = getElementStyles( { index: 0 } );
+		return lightenHexColor( normalizeColorToHex( primaryColor ), 0.92 );
+	}, [ withOverlayLabel, getElementStyles ] );
 
 	/**
 	 * Merge theme bar border radius with style prop.
@@ -183,7 +189,7 @@ export function LeaderboardChart( {
 				withComparison={ withComparison }
 				valueFormatter={ valueFormatter }
 				legendLabels={ legendLabels }
-				primaryColor={ withOverlayLabel ? hexToRgba( chartColors.primaryColor, 0.08 ) : undefined }
+				primaryColor={ barColor }
 				withOverlayLabel={ withOverlayLabel }
 				showLegend={ false }
 				style={ chartStyle }

projects/packages/premium-analytics/tsconfig.json

@@ -9,5 +9,5 @@
 			"@jetpack-premium-analytics/*": [ "./packages/*/src" ]
 		}
 	},
-	"include": [ "routes/**/*", "packages/**/*", "types/**/*" ]
+	"include": [ "routes/**/*", "packages/**/*", "types/**/*", "widgets/**/*" ]
 }

projects/packages/premium-analytics/widgets/top-posts/index.ts

@@ -0,0 +1,2 @@
+export { TopPostsWidget, type TopPostsWidgetProps } from './top-posts-widget';
+export type { TopPostRow } from './types';

projects/packages/premium-analytics/widgets/top-posts/stories/top-posts-widget.stories.tsx

@@ -0,0 +1,196 @@
+/**
+ * Internal dependencies
+ */
+import { withChartTheme } from '../../../packages/widgets-toolkit/src/stories/with-chart-theme';
+import { TopPostsWidget } from '../top-posts-widget';
+import type { TopPostRow } from '../types';
+import type { Meta, StoryObj, Decorator } from '@storybook/react';
+
+const meta: Meta< typeof TopPostsWidget > = {
+	title: 'Packages/Premium Analytics/Widgets/TopPosts',
+	component: TopPostsWidget,
+	tags: [ 'autodocs' ],
+	parameters: {
+		docs: {
+			description: {
+				component:
+					'The "Top posts & pages" widget. Renders the most-viewed posts and pages for the period as a leaderboard, with each row linking to the published content. This is a presentational component — it takes already-fetched rows via props and handles the loading, error, empty, and populated states.',
+			},
+		},
+	},
+	decorators: [ withChartTheme ],
+};
+
+export default meta;
+
+type Story = StoryObj< typeof TopPostsWidget >;
+
+const mockRows: TopPostRow[] = [
+	{
+		label: 'How we cut our build times in half',
+		value: 12840,
+		previousValue: 9870,
+		href: 'https://example.com/cut-build-times-in-half',
+		type: 'post',
+	},
+	{
+		label: 'Pricing',
+		value: 9320,
+		previousValue: 10110,
+		href: 'https://example.com/pricing',
+		type: 'page',
+	},
+	{
+		label: '10 lessons from scaling to a million users',
+		value: 7610,
+		previousValue: 5400,
+		href: 'https://example.com/lessons-scaling-million-users',
+		type: 'post',
+	},
+	{
+		label: 'About us',
+		value: 4180,
+		previousValue: 4360,
+		href: 'https://example.com/about',
+		type: 'page',
+	},
+	{
+		label: 'A practical guide to feature flags',
+		value: 2950,
+		previousValue: 0,
+		href: 'https://example.com/guide-to-feature-flags',
+		type: 'post',
+	},
+];
+
+const mockLongLabelRows: TopPostRow[] = [
+	{
+		label:
+			'An exhaustively long, keyword-stuffed headline that almost certainly needs to be truncated before it overflows the row',
+		value: 8400,
+		href: 'https://example.com/very-long-headline-that-needs-truncation',
+		type: 'post',
+	},
+	{
+		label: 'Frequently asked questions about billing, refunds, and account management',
+		value: 5120,
+		href: 'https://example.com/faq-billing-refunds-account-management',
+		type: 'page',
+	},
+	{
+		label: 'Changelog',
+		value: 2010,
+		href: 'https://example.com/changelog',
+		type: 'page',
+	},
+];
+
+/**
+ * Default populated state — a mix of posts and pages ranked by views.
+ */
+export const Default: Story = {
+	args: {
+		rows: mockRows,
+	},
+};
+
+/**
+ * Comparison state — each value shows its change versus the previous period
+ * (green for gains, red for losses), driven by each row's `previousValue`.
+ * Mirrors the overlay comparison mode of the toolkit's `LeaderboardChart`.
+ */
+export const WithComparison: Story = {
+	args: {
+		rows: mockRows,
+		withComparison: true,
+		showLegend: true,
+		legendLabels: {
+			primary: 'Jun 1 – 18, 2026',
+			comparison: 'May 14 – 31, 2026',
+		},
+	},
+};
+
+/**
+ * Loading state — the chart renders its loading overlay while data is fetched.
+ */
+export const Loading: Story = {
+	args: {
+		rows: [],
+		isLoading: true,
+	},
+};
+
+/**
+ * Empty state — no views were recorded for the selected period.
+ */
+export const NoViews: Story = {
+	args: {
+		rows: [],
+	},
+};
+
+/**
+ * Error state — the report could not be loaded.
+ */
+export const ErrorState: Story = {
+	args: {
+		isError: true,
+	},
+};
+
+/**
+ * Long titles are truncated with an ellipsis so rows stay single-line.
+ */
+export const LongLabels: Story = {
+	args: {
+		rows: mockLongLabelRows,
+	},
+};
+
+/**
+ * Creates a decorator that wraps the story in a fixed-size container so the
+ * widget's responsiveness can be inspected at a given width.
+ *
+ * @param width    - The container width (any CSS length).
+ * @param [height] - The container height; defaults to `auto`.
+ * @return A Storybook decorator.
+ */
+const createSizeDecorator = ( width: string, height = 'auto' ): Decorator => {
+	return Story => (
+		<div
+			style={ {
+				width,
+				height,
+				border: '1px dashed #ccc',
+				borderRadius: '8px',
+				padding: '16px',
+				background: '#fafafa',
+				containerType: 'inline-size',
+				containerName: 'widget',
+			} }
+		>
+			<Story />
+		</div>
+	);
+};
+
+/**
+ * Medium container (448px / md breakpoint).
+ */
+export const SizeMedium: Story = {
+	args: {
+		rows: mockRows,
+	},
+	decorators: [ createSizeDecorator( '448px' ) ],
+};
+
+/**
+ * Large container (576px / xl breakpoint).
+ */
+export const SizeLarge: Story = {
+	args: {
+		rows: mockRows,
+	},
+	decorators: [ createSizeDecorator( '576px' ) ],
+};

projects/packages/premium-analytics/widgets/top-posts/top-posts-widget.module.css

@@ -0,0 +1,22 @@
+.labelLink {
+	display: block;
+
+	/* Vertical padding sets the overlay bar height — the bar fills the row,
+	   whose height is driven by this label (there is no image to size it). */
+	padding-block: var(--wpds-dimension-padding-md, 12px);
+
+	/* Inset the text from the bar's rounded left edge. The chart applies this to
+	   its default `.label` in overlay mode (`.is-overlay .label`), but a custom
+	   label element bypasses that rule, so we mirror it here. */
+	padding-inline-start: var(--wpds-dimension-padding-sm, 8px);
+	overflow: hidden;
+	color: inherit;
+	text-decoration: none;
+	text-overflow: ellipsis;
+	white-space: nowrap;
+}
+
+.labelLink:hover,
+.labelLink:focus {
+	text-decoration: underline;
+}