Block Directory: Add error messages inline.

packages/block-directory/src/components/downloadable-block-header/index.js

@@ -1,20 +1,22 @@
 /**
  * WordPress dependencies
  */
-import { Button } from '@wordpress/components';
 import { __, sprintf } from '@wordpress/i18n';
+import { Button } from '@wordpress/components';
+import { withSelect } from '@wordpress/data';
 
 /**
  * Internal dependencies
  */
 import { BlockIcon } from '@wordpress/block-editor';
 import BlockRatings from '../block-ratings';
 
-function DownloadableBlockHeader( {
+export function DownloadableBlockHeader( {
 	icon,
 	title,
 	rating,
 	ratingCount,
+	isLoading,
 	onClick,
 } ) {
 	return (
@@ -45,15 +47,23 @@ function DownloadableBlockHeader( {
 			</div>
 			<Button
 				isSecondary
+				isBusy={ isLoading }
+				disabled={ isLoading }
 				onClick={ ( event ) => {
 					event.preventDefault();
-					onClick();
+					if ( ! isLoading ) {
+						onClick();
+					}
 				} }
 			>
-				{ __( 'Add block' ) }
+				{ isLoading ? __( 'Adding…' ) : __( 'Add block' ) }
 			</Button>
 		</div>
 	);
 }
 
-export default DownloadableBlockHeader;
+export default withSelect( ( select ) => {
+	return {
+		isLoading: select( 'core/block-directory' ).isInstalling(),
+	};
+} )( DownloadableBlockHeader );

packages/block-directory/src/components/downloadable-block-header/test/index.js

@@ -7,21 +7,27 @@ import { shallow } from 'enzyme';
  * WordPress dependencies
  */
 import { BlockIcon } from '@wordpress/block-editor';
+import { Button } from '@wordpress/components';
 
 /**
  * Internal dependencies
  */
-import DownloadableBlockHeader from '../index';
+import { DownloadableBlockHeader } from '../index';
 import { pluginWithImg, pluginWithIcon } from './fixtures';
 
-const getContainer = ( { icon, title, rating, ratingCount } ) => {
+const getContainer = (
+	{ icon, title, rating, ratingCount },
+	onClick = jest.fn(),
+	isLoading = false
+) => {
 	return shallow(
 		<DownloadableBlockHeader
 			icon={ icon }
-			onClick={ () => {} }
+			onClick={ onClick }
 			title={ title }
 			rating={ rating }
 			ratingCount={ ratingCount }
+			isLoading={ isLoading }
 		/>
 	);
 };
@@ -50,4 +56,28 @@ describe( 'DownloadableBlockHeader', () => {
 			expect( wrapper.find( BlockIcon ) ).toHaveLength( 1 );
 		} );
 	} );
+
+	describe( 'user interaction', () => {
+		test( 'should trigger the onClick function', () => {
+			const onClickMock = jest.fn();
+			const wrapper = getContainer( pluginWithIcon, onClickMock );
+			const event = {
+				preventDefault: jest.fn(),
+			};
+			wrapper.find( Button ).simulate( 'click', event );
+			expect( onClickMock ).toHaveBeenCalledTimes( 1 );
+			expect( event.preventDefault ).toHaveBeenCalled();
+		} );
+
+		test( 'should not trigger the onClick function if loading', () => {
+			const onClickMock = jest.fn();
+			const wrapper = getContainer( pluginWithIcon, onClickMock, true );
+			const event = {
+				preventDefault: jest.fn(),
+			};
+			wrapper.find( Button ).simulate( 'click', event );
+			expect( event.preventDefault ).toHaveBeenCalled();
+			expect( onClickMock ).toHaveBeenCalledTimes( 0 );
+		} );
+	} );
 } );

packages/block-directory/src/components/downloadable-block-list-item/index.js

@@ -1,9 +1,10 @@
 /**
  * Internal dependencies
  */
-import DownloadableBlockHeader from '../downloadable-block-header';
 import DownloadableBlockAuthorInfo from '../downloadable-block-author-info';
+import DownloadableBlockHeader from '../downloadable-block-header';
 import DownloadableBlockInfo from '../downloadable-block-info';
+import DownloadableBlockNotice from '../downloadable-block-notice';
 
 function DownloadableBlockListItem( { item, onClick } ) {
 	const {
@@ -32,6 +33,10 @@ function DownloadableBlockListItem( { item, onClick } ) {
 					/>
 				</header>
 				<section className="block-directory-downloadable-block-list-item__body">
+					<DownloadableBlockNotice
+						onClick={ onClick }
+						block={ item }
+					/>
 					<DownloadableBlockInfo
 						activeInstalls={ activeInstalls }
 						description={ description }

packages/block-directory/src/components/downloadable-block-notice/index.js

@@ -0,0 +1,53 @@
+/**
+ * WordPress dependencies
+ */
+import { __ } from '@wordpress/i18n';
+import { Button, Notice } from '@wordpress/components';
+import { withSelect } from '@wordpress/data';
+
+/**
+ * Internal dependencies
+ */
+import { DOWNLOAD_ERROR_NOTICE_ID } from '../../store/constants';
+
+export const DownloadableBlockNotice = ( { block, errorNotices, onClick } ) => {
+	if ( ! errorNotices[ block.id ] ) {
+		return null;
+	}
+
+	// A Failed install is the default error as its the first step
+	let copy = __( 'Block could not be added.' );
+
+	if ( errorNotices[ block.id ] === DOWNLOAD_ERROR_NOTICE_ID ) {
+		copy = __(
+			'Block could not be added. There is a problem with the block.'
+		);
+	}
+
+	return (
+		<Notice
+			status="error"
+			isDismissible={ false }
+			className="block-directory-downloadable-blocks__notice"
+		>
+			<div className="block-directory-downloadable-blocks__notice-content">
+				{ copy }
+			</div>
+			<Button
+				isSmall
+				isPrimary
+				onClick={ () => {
+					onClick( block );
+				} }
+			>
+				{ __( 'Retry' ) }
+			</Button>
+		</Notice>
+	);
+};
+
+export default withSelect( ( select ) => {
+	return {
+		errorNotices: select( 'core/block-directory' ).getErrorNotices(),
+	};
+} )( DownloadableBlockNotice );

packages/block-directory/src/components/downloadable-block-notice/style.scss

@@ -0,0 +1,8 @@
+.block-directory-downloadable-blocks__notice {
+	margin: 0 0 16px;
+}
+
+.block-directory-downloadable-blocks__notice-content {
+	padding-right: 12px;
+	margin-bottom: 8px;
+}

packages/block-directory/src/components/downloadable-block-notice/test/fixtures/index.js

@@ -0,0 +1,3 @@
+export const plugin = {
+	id: 'boxer-block',
+};

packages/block-directory/src/components/downloadable-block-notice/test/index.js

@@ -0,0 +1,63 @@
+/**
+ * External dependencies
+ */
+import { shallow } from 'enzyme';
+
+/**
+ * WordPress dependencies
+ */
+import { Button } from '@wordpress/components';
+
+/**
+ * Internal dependencies
+ */
+import { DownloadableBlockNotice } from '../index';
+import { plugin } from './fixtures';
+
+import { INSTALL_ERROR_NOTICE_ID } from '../../../store/constants';
+
+const getContainer = ( { block, onClick = jest.fn(), errorNotices = {} } ) => {
+	return shallow(
+		<DownloadableBlockNotice
+			block={ block }
+			onClick={ onClick }
+			errorNotices={ errorNotices }
+		/>
+	);
+};
+
+describe( 'DownloadableBlockNotice', () => {
+	describe( 'Rendering', () => {
+		it( 'should return null when there are no error notices', () => {
+			const wrapper = getContainer( { block: plugin } );
+			expect( wrapper.isEmptyRender() ).toBe( true );
+		} );
+
+		it( 'should return something when there are error notices', () => {
+			const errorNotices = {
+				[ plugin.id ]: INSTALL_ERROR_NOTICE_ID,
+			};
+			const wrapper = getContainer( { block: plugin, errorNotices } );
+			expect( wrapper.length ).toBeGreaterThan( 0 );
+		} );
+	} );
+
+	describe( 'Behavior', () => {
+		it( 'should trigger the callback on button click', () => {
+			const errorNotices = {
+				[ plugin.id ]: INSTALL_ERROR_NOTICE_ID,
+			};
+
+			const onClick = jest.fn();
+			const wrapper = getContainer( {
+				block: plugin,
+				onClick,
+				errorNotices,
+			} );
+
+			wrapper.find( Button ).simulate( 'click', { event: {} } );
+
+			expect( onClick ).toHaveBeenCalledTimes( 1 );
+		} );
+	} );
+} );