Storybook: Add stories for BlockVerticalAlignmentControl component

packages/block-editor/src/components/block-vertical-alignment-control/stories/index.story.js

@@ -0,0 +1,90 @@
+/**
+ * WordPress dependencies
+ */
+import { useState } from '@wordpress/element';
+
+/**
+ * Internal dependencies
+ */
+import {
+	BlockVerticalAlignmentControl,
+	BlockVerticalAlignmentToolbar,
+} from '../';
+
+const meta = {
+	title: 'BlockEditor/BlockVerticalAlignmentControl',
+	component: BlockVerticalAlignmentControl,
+	parameters: {
+		docs: {
+			canvas: { sourceState: 'shown' },
+			description: {
+				component:
+					'Controls for vertical alignment of content within a block.',
+			},
+		},
+	},
+	argTypes: {
+		value: {
+			control: { type: null },
+			description: 'Currently selected vertical alignment value.',
+			table: {
+				type: {
+					summary: 'string',
+				},
+			},
+		},
+		onChange: {
+			action: 'onChange',
+			control: { type: null },
+			description: 'Handles change in vertical alignment selection.',
+			table: {
+				type: {
+					summary: 'function',
+				},
+			},
+		},
+		controls: {
+			control: 'check',
+			description: 'Array of vertical alignment options to display.',
+			options: [ 'top', 'center', 'bottom' ],
+			table: {
+				type: { summary: 'array' },
+				defaultValue: { summary: "['top', 'center', 'bottom']" },
+			},
+		},
+	},
+};
+
+export default meta;
+
+export const Default = {
+	render: function Template( { onChange, ...args } ) {
+		const [ value, setValue ] = useState();
+		return (
+			<BlockVerticalAlignmentControl
+				{ ...args }
+				onChange={ ( newValue ) => {
+					onChange( newValue );
+					setValue( newValue );
+				} }
+				value={ value }
+			/>
+		);
+	},
+};
+
+export const Toolbar = {
+	render: function Template( { onChange, ...args } ) {
+		const [ value, setValue ] = useState();
+		return (
+			<BlockVerticalAlignmentToolbar
+				{ ...args }
+				onChange={ ( newValue ) => {
+					onChange( newValue );
+					setValue( newValue );
+				} }
+				value={ value }
+			/>
+		);
+	},
+};