From 011446c719a90fe97c52bf662547ef0933a6575b Mon Sep 17 00:00:00 2001
From: Riad Benguella <benguella@gmail.com>
Date: Thu, 15 Feb 2024 12:13:06 +0100
Subject: [PATCH] Site Editor: Fix navigation on mobile web (#59014)

Co-authored-by: youknowriad <youknowriad@git.wordpress.org>
Co-authored-by: t-hamano <wildworks@git.wordpress.org>
Co-authored-by: ntsekouras <ntsekouras@git.wordpress.org>
Co-authored-by: jameskoster <jameskoster@git.wordpress.org>
Co-authored-by: colorful-tones <colorful-tones@git.wordpress.org>
Co-authored-by: annezazu <annezazu@git.wordpress.org>
---
 .../edit-site/src/components/layout/index.js  | 77 +++++++++++--------
 .../edit-site/src/components/layout/router.js | 33 +++++++-
 .../src/components/layout/style.scss          |  7 ++
 .../src/components/page-patterns/style.scss   |  6 ++
 .../sidebar-navigation-screen-pages/index.js  | 16 ++--
 .../edit-site/src/components/sidebar/index.js | 10 ++-
 6 files changed, 108 insertions(+), 41 deletions(-)

diff --git a/packages/edit-site/src/components/layout/index.js b/packages/edit-site/src/components/layout/index.js
index 163d4fe6e938ff..65dfb71949a7f5 100644
--- a/packages/edit-site/src/components/layout/index.js
+++ b/packages/edit-site/src/components/layout/index.js
@@ -251,47 +251,64 @@ export default function Layout() {
 						The NavigableRegion must always be rendered and not use
 						`inert` otherwise `useNavigateRegions` will fail.
 					*/ }
-					<NavigableRegion
-						ariaLabel={ __( 'Navigation' ) }
-						className="edit-site-layout__sidebar-region"
-					>
-						<AnimatePresence>
-							{ canvasMode === 'view' && (
-								<motion.div
-									initial={ { opacity: 0 } }
-									animate={ { opacity: 1 } }
-									exit={ { opacity: 0 } }
-									transition={ {
-										type: 'tween',
-										duration:
-											// Disable transition in mobile to emulate a full page transition.
-											disableMotion || isMobileViewport
-												? 0
-												: ANIMATION_DURATION,
-										ease: 'easeOut',
-									} }
-									className="edit-site-layout__sidebar"
-								>
-									<Sidebar />
-								</motion.div>
-							) }
-						</AnimatePresence>
-					</NavigableRegion>
+					{ ( ! isMobileViewport ||
+						( isMobileViewport && ! areas.mobile ) ) && (
+						<NavigableRegion
+							ariaLabel={ __( 'Navigation' ) }
+							className="edit-site-layout__sidebar-region"
+						>
+							<AnimatePresence>
+								{ canvasMode === 'view' && (
+									<motion.div
+										initial={ { opacity: 0 } }
+										animate={ { opacity: 1 } }
+										exit={ { opacity: 0 } }
+										transition={ {
+											type: 'tween',
+											duration:
+												// Disable transition in mobile to emulate a full page transition.
+												disableMotion ||
+												isMobileViewport
+													? 0
+													: ANIMATION_DURATION,
+											ease: 'easeOut',
+										} }
+										className="edit-site-layout__sidebar"
+									>
+										<Sidebar />
+									</motion.div>
+								) }
+							</AnimatePresence>
+						</NavigableRegion>
+					) }
 
 					<SavePanel />
 
-					{ areas.content && canvasMode !== 'edit' && (
+					{ isMobileViewport && areas.mobile && (
 						<div
-							className="edit-site-layout__area"
+							className="edit-site-layout__mobile"
 							style={ {
 								maxWidth: widths?.content,
 							} }
 						>
-							{ areas.content }
+							{ areas.mobile }
 						</div>
 					) }
 
-					{ areas.preview && (
+					{ ! isMobileViewport &&
+						areas.content &&
+						canvasMode !== 'edit' && (
+							<div
+								className="edit-site-layout__area"
+								style={ {
+									maxWidth: widths?.content,
+								} }
+							>
+								{ areas.content }
+							</div>
+						) }
+
+					{ ! isMobileViewport && areas.preview && (
 						<div className="edit-site-layout__canvas-container">
 							{ canvasResizer }
 							{ !! canvasSize.width && (
diff --git a/packages/edit-site/src/components/layout/router.js b/packages/edit-site/src/components/layout/router.js
index aeb124bf76fe5f..02f7e7b25594ae 100644
--- a/packages/edit-site/src/components/layout/router.js
+++ b/packages/edit-site/src/components/layout/router.js
@@ -23,13 +23,21 @@ const { useLocation } = unlock( routerPrivateApis );
 export default function useLayoutAreas() {
 	const isSiteEditorLoading = useIsSiteEditorLoading();
 	const { params } = useLocation();
-	const { postType, postId, path, layout, isCustom } = params ?? {};
+	const { postType, postId, path, layout, isCustom, canvas } = params ?? {};
+
+	// Note: Since "sidebar" is not yet supported here,
+	// returning undefined from "mobile" means show the sidebar.
+
 	// Regular page
 	if ( path === '/page' ) {
 		return {
 			areas: {
 				content: undefined,
 				preview: <Editor isLoading={ isSiteEditorLoading } />,
+				mobile:
+					canvas === 'edit' ? (
+						<Editor isLoading={ isSiteEditorLoading } />
+					) : undefined,
 			},
 			widths: {
 				content: undefined,
@@ -63,6 +71,10 @@ export default function useLayoutAreas() {
 		return {
 			areas: {
 				preview: <Editor isLoading={ isSiteEditorLoading } />,
+				mobile:
+					canvas === 'edit' ? (
+						<Editor isLoading={ isSiteEditorLoading } />
+					) : undefined,
 			},
 		};
 	}
@@ -79,6 +91,11 @@ export default function useLayoutAreas() {
 				preview: isListLayout && (
 					<Editor isLoading={ isSiteEditorLoading } />
 				),
+				mobile: (
+					<PageTemplatesTemplateParts
+						postType={ TEMPLATE_POST_TYPE }
+					/>
+				),
 			},
 			widths: {
 				content: isListLayout ? 380 : undefined,
@@ -98,6 +115,11 @@ export default function useLayoutAreas() {
 				preview: isListLayout && (
 					<Editor isLoading={ isSiteEditorLoading } />
 				),
+				mobile: (
+					<PageTemplatesTemplateParts
+						postType={ TEMPLATE_PART_POST_TYPE }
+					/>
+				),
 			},
 			widths: {
 				content: isListLayout ? 380 : undefined,
@@ -110,12 +132,19 @@ export default function useLayoutAreas() {
 		return {
 			areas: {
 				content: <PagePatterns />,
+				mobile: <PagePatterns />,
 			},
 		};
 	}
 
 	// Fallback shows the home page preview
 	return {
-		areas: { preview: <Editor isLoading={ isSiteEditorLoading } /> },
+		areas: {
+			preview: <Editor isLoading={ isSiteEditorLoading } />,
+			mobile:
+				canvas === 'edit' ? (
+					<Editor isLoading={ isSiteEditorLoading } />
+				) : undefined,
+		},
 	};
 }
diff --git a/packages/edit-site/src/components/layout/style.scss b/packages/edit-site/src/components/layout/style.scss
index 9be0b001ed9e25..ad33768989a81b 100644
--- a/packages/edit-site/src/components/layout/style.scss
+++ b/packages/edit-site/src/components/layout/style.scss
@@ -83,6 +83,12 @@
 	flex-direction: column;
 }
 
+.edit-site-layout__mobile {
+	position: relative;
+	width: 100%;
+	z-index: z-index(".edit-site-layout__canvas-container");
+}
+
 .edit-site-layout__canvas-container {
 	position: relative;
 	flex-grow: 1;
@@ -147,6 +153,7 @@
 }
 
 // This shouldn't be necessary (we should have a way to say that a skeletton is relative
+.edit-site-layout__mobile .interface-interface-skeleton,
 .edit-site-layout__canvas .interface-interface-skeleton,
 .edit-site-template-pages-preview .interface-interface-skeleton {
 	position: relative !important;
diff --git a/packages/edit-site/src/components/page-patterns/style.scss b/packages/edit-site/src/components/page-patterns/style.scss
index 0be55756d1609d..dd32818edd614b 100644
--- a/packages/edit-site/src/components/page-patterns/style.scss
+++ b/packages/edit-site/src/components/page-patterns/style.scss
@@ -225,6 +225,12 @@
  * TODO: when this becomes stable, consolidate styles with the above.
  */
 .edit-site-page-patterns-dataviews {
+	margin-top: 60px;
+
+	@include break-medium {
+		margin-top: 0;
+	}
+
 	.page-patterns-preview-field {
 		display: flex;
 		flex-direction: column;
diff --git a/packages/edit-site/src/components/sidebar-navigation-screen-pages/index.js b/packages/edit-site/src/components/sidebar-navigation-screen-pages/index.js
index 82fc6d0fa2412b..7641ac1fe97a0d 100644
--- a/packages/edit-site/src/components/sidebar-navigation-screen-pages/index.js
+++ b/packages/edit-site/src/components/sidebar-navigation-screen-pages/index.js
@@ -14,6 +14,7 @@ import { decodeEntities } from '@wordpress/html-entities';
 import { privateApis as routerPrivateApis } from '@wordpress/router';
 import { layout, page, home, verse, plus } from '@wordpress/icons';
 import { useSelect } from '@wordpress/data';
+import { useViewportMatch } from '@wordpress/compose';
 
 /**
  * Internal dependencies
@@ -42,6 +43,7 @@ const PageItem = ( { postType = 'page', postId, ...props } ) => {
 };
 
 export default function SidebarNavigationScreenPages() {
+	const isMobileViewport = useViewportMatch( 'medium', '<' );
 	const { records: pages, isResolving: isLoadingPages } = useEntityRecords(
 		'postType',
 		'page',
@@ -220,12 +222,14 @@ export default function SidebarNavigationScreenPages() {
 								</Truncate>
 							</PageItem>
 						) ) }
-						<SidebarNavigationItem
-							className="edit-site-sidebar-navigation-screen-pages__see-all"
-							{ ...pagesLink }
-						>
-							{ __( 'Manage all pages' ) }
-						</SidebarNavigationItem>
+						{ ! isMobileViewport && (
+							<SidebarNavigationItem
+								className="edit-site-sidebar-navigation-screen-pages__see-all"
+								{ ...pagesLink }
+							>
+								{ __( 'Manage all pages' ) }
+							</SidebarNavigationItem>
+						) }
 					</VStack>
 				}
 			/>
diff --git a/packages/edit-site/src/components/sidebar/index.js b/packages/edit-site/src/components/sidebar/index.js
index 84a89957b475d5..56107edc63c863 100644
--- a/packages/edit-site/src/components/sidebar/index.js
+++ b/packages/edit-site/src/components/sidebar/index.js
@@ -13,6 +13,7 @@ import {
 } from '@wordpress/components';
 import { privateApis as routerPrivateApis } from '@wordpress/router';
 import { __ } from '@wordpress/i18n';
+import { useViewportMatch } from '@wordpress/compose';
 
 /**
  * Internal dependencies
@@ -52,6 +53,7 @@ function SidebarScreenWrapper( { className, ...props } ) {
 
 function SidebarScreens() {
 	useSyncPathWithURL();
+	const isMobileViewport = useViewportMatch( 'medium', '<' );
 
 	return (
 		<>
@@ -82,9 +84,11 @@ function SidebarScreens() {
 			<SidebarScreenWrapper path="/:postType(wp_template)">
 				<SidebarNavigationScreenTemplates />
 			</SidebarScreenWrapper>
-			<SidebarScreenWrapper path="/patterns">
-				<SidebarNavigationScreenPatterns />
-			</SidebarScreenWrapper>
+			{ ! isMobileViewport && (
+				<SidebarScreenWrapper path="/patterns">
+					<SidebarNavigationScreenPatterns />
+				</SidebarScreenWrapper>
+			) }
 			<SidebarScreenWrapper path="/:postType(wp_template|wp_template_part)/all">
 				<SidebarNavigationScreenTemplatesBrowse />
 			</SidebarScreenWrapper>