woocommerce/plugins/woocommerce-admin/client/customize-store/assembler-hub/layout.tsx

// Reference: https://github.com/WordPress/gutenberg/tree/v16.4.0/packages/edit-site/src/components/layout/index.js
/* eslint-disable @woocommerce/dependency-group */
/* eslint-disable @typescript-eslint/ban-ts-comment */
/**
 * External dependencies
 */
import classnames from 'classnames';
import {
	useReducedMotion,
	useResizeObserver,
	useViewportMatch,
} from '@wordpress/compose';
import { __ } from '@wordpress/i18n';
import { useState } from '@wordpress/element';
import {
	// @ts-ignore No types for this exist yet.
	__unstableMotion as motion,
} from '@wordpress/components';
import {
	privateApis as blockEditorPrivateApis,
	// @ts-ignore No types for this exist yet.
} from '@wordpress/block-editor';
// @ts-ignore No types for this exist yet.
import useInitEditedEntityFromURL from '@wordpress/edit-site/build-module/components/sync-state-with-url/use-init-edited-entity-from-url';
// @ts-ignore No types for this exist yet.
import { useIsSiteEditorLoading } from '@wordpress/edit-site/build-module/components/layout/hooks';
// @ts-ignore No types for this exist yet.
import ErrorBoundary from '@wordpress/edit-site/build-module/components/error-boundary';
// @ts-ignore No types for this exist yet.
import { unlock } from '@wordpress/edit-site/build-module/lock-unlock';
// @ts-ignore No types for this exist yet.
import { NavigableRegion } from '@wordpress/interface';

/**
 * Internal dependencies
 */
import { Editor } from './editor';
import Sidebar from './sidebar';
import { SiteHub } from './site-hub';
import { LogoBlockContext } from './logo-block-context';
import ResizableFrame from './resizable-frame';

const { useGlobalStyle } = unlock( blockEditorPrivateApis );

const ANIMATION_DURATION = 0.5;

export const Layout = () => {
	const [ logoBlock, setLogoBlock ] = useState< {
		clientId: string | null;
		isLoading: boolean;
	} >( {
		clientId: null,
		isLoading: true,
	} );
	// This ensures the edited entity id and type are initialized properly.
	useInitEditedEntityFromURL();

	const isMobileViewport = useViewportMatch( 'medium', '<' );
	const disableMotion = useReducedMotion();
	const [ canvasResizer, canvasSize ] = useResizeObserver();
	const isEditorLoading = useIsSiteEditorLoading();
	const [ isResizableFrameOversized, setIsResizableFrameOversized ] =
		useState( false );
	const [ backgroundColor ] = useGlobalStyle( 'color.background' );
	const [ gradientValue ] = useGlobalStyle( 'color.gradient' );

	return (
		<LogoBlockContext.Provider
			value={ {
				logoBlock,
				setLogoBlock,
			} }
		>
			<div className={ classnames( 'edit-site-layout' ) }>
				<motion.div
					className="edit-site-layout__header-container"
					animate={ 'view' }
				>
					<SiteHub
						as={ motion.div }
						variants={ {
							view: { x: 0 },
						} }
						isTransparent={ false }
						className="edit-site-layout__hub"
					/>
				</motion.div>

				<div className="edit-site-layout__content">
					<NavigableRegion
						ariaLabel={ __( 'Navigation', 'woocommerce' ) }
						className="edit-site-layout__sidebar-region"
					>
						<motion.div
							animate={ { opacity: 1 } }
							transition={ {
								type: 'tween',
								duration:
									// Disable transitiont in mobile to emulate a full page transition.
									disableMotion || isMobileViewport
										? 0
										: ANIMATION_DURATION,
								ease: 'easeOut',
							} }
							className="edit-site-layout__sidebar"
						>
							<Sidebar />
						</motion.div>
					</NavigableRegion>

					{ ! isMobileViewport && (
						<div
							className={ classnames(
								'edit-site-layout__canvas-container'
							) }
						>
							{ canvasResizer }
							{ !! canvasSize.width && (
								<motion.div
									whileHover={ {
										scale: 1.005,
										transition: {
											duration: disableMotion ? 0 : 0.5,
											ease: 'easeOut',
										},
									} }
									initial={ false }
									layout="position"
									className={ classnames(
										'edit-site-layout__canvas'
									) }
									transition={ {
										type: 'tween',
										duration: disableMotion
											? 0
											: ANIMATION_DURATION,
										ease: 'easeOut',
									} }
								>
									<ErrorBoundary>
										<ResizableFrame
											isReady={ ! isEditorLoading }
											isFullWidth={ false }
											defaultSize={ {
												width:
													canvasSize.width -
													24 /* $canvas-padding */,
												height: canvasSize.height,
											} }
											isOversized={
												isResizableFrameOversized
											}
											setIsOversized={
												setIsResizableFrameOversized
											}
											innerContentStyle={ {
												background:
													gradientValue ??
													backgroundColor,
											} }
										>
											<Editor
												isLoading={ isEditorLoading }
											/>
										</ResizableFrame>
									</ErrorBoundary>
								</motion.div>
							) }
						</div>
					) }
				</div>
			</div>
		</LogoBlockContext.Provider>
	);
};