From d8caf7912c0c7d49fe94d36a8d0148f8b3b38b68 Mon Sep 17 00:00:00 2001
From: ntsekouras <ntsekouras@outlook.com>
Date: Wed, 1 Nov 2023 16:00:59 +0200
Subject: [PATCH] [Site editor]: Add edit page slug field

---
 .../page-panels/page-slug.js                  | 159 ++++++++++++++++++
 .../page-panels/page-summary.js               |   2 +
 .../sidebar-edit-mode/page-panels/style.scss  |   7 +
 3 files changed, 168 insertions(+)
 create mode 100644 packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-slug.js

diff --git a/packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-slug.js b/packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-slug.js
new file mode 100644
index 0000000000000..149d8f4942d78
--- /dev/null
+++ b/packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-slug.js
@@ -0,0 +1,159 @@
+/**
+ * WordPress dependencies
+ */
+import { useSelect, useDispatch } from '@wordpress/data';
+import { safeDecodeURIComponent, filterURLForDisplay } from '@wordpress/url';
+import { useState, useMemo } from '@wordpress/element';
+import { __experimentalInspectorPopoverHeader as InspectorPopoverHeader } from '@wordpress/block-editor';
+import { __ } from '@wordpress/i18n';
+import {
+	TextControl,
+	ExternalLink,
+	__experimentalHStack as HStack,
+	__experimentalVStack as VStack,
+	__experimentalText as Text,
+	Dropdown,
+	Button,
+} from '@wordpress/components';
+import { useEntityRecord, store as coreStore } from '@wordpress/core-data';
+import { store as noticesStore } from '@wordpress/notices';
+
+/**
+ * Internal dependencies
+ */
+import useEditedEntityRecord from '../../use-edited-entity-record';
+
+export const PERMALINK_POSTNAME_REGEX = /%(?:postname|pagename)%/;
+
+export default function PageSlug( { postType, postId } ) {
+	const { createErrorNotice } = useDispatch( noticesStore );
+	const { editEntityRecord } = useDispatch( coreStore );
+	const { record, isLoaded } = useEditedEntityRecord( postType, postId );
+	const { record: savedRecord } = useEntityRecord( postType, postId );
+	const [ popoverAnchor, setPopoverAnchor ] = useState( null );
+	const isEditable =
+		PERMALINK_POSTNAME_REGEX.test( record?.permalink_template ) &&
+		record?._links?.[ 'wp:action-publish' ];
+	const viewPostLabel = useSelect(
+		( select ) => {
+			const postTypeObject = select( coreStore ).getPostType( postType );
+			return postTypeObject?.labels.view_item;
+		},
+		[ postType ]
+	);
+	const popoverProps = useMemo(
+		() => ( {
+			// Anchor the popover to the middle of the entire row so that it doesn't
+			// move around when the label changes.
+			anchor: popoverAnchor,
+			'aria-label': __( 'Change slug' ),
+			placement: 'bottom-end',
+		} ),
+		[ popoverAnchor ]
+	);
+	if ( ! isLoaded ) {
+		return null;
+	}
+	const onSlugChange = async ( newValue ) => {
+		try {
+			await editEntityRecord( 'postType', postType, postId, {
+				slug: newValue,
+			} );
+		} catch ( error ) {
+			const errorMessage =
+				error.message && error.code !== 'unknown_error'
+					? error.message
+					: __( 'An error occurred while updating the status' );
+
+			createErrorNotice( errorMessage, {
+				type: 'snackbar',
+			} );
+		}
+	};
+	return (
+		<HStack className="edit-site-summary-field">
+			<Text className="edit-site-summary-field__label">
+				{ __( 'URL' ) }
+			</Text>
+			<Dropdown
+				contentClassName="edit-site-page-panels-edit-slug__dropdown"
+				popoverProps={ popoverProps }
+				focusOnMount
+				ref={ setPopoverAnchor }
+				renderToggle={ ( { onToggle } ) => (
+					<Button
+						className="edit-site-summary-field__trigger"
+						variant="tertiary"
+						onClick={ onToggle }
+					>
+						{ filterURLForDisplay(
+							safeDecodeURIComponent( record.link )
+						) }
+					</Button>
+				) }
+				renderContent={ ( { onClose } ) => {
+					return (
+						<>
+							<InspectorPopoverHeader
+								title={ __( 'URL' ) }
+								onClose={ onClose }
+							/>
+							<VStack spacing={ 5 }>
+								{ isEditable && (
+									<TextControl
+										__nextHasNoMarginBottom
+										label={ __( 'Permalink' ) }
+										value={ safeDecodeURIComponent(
+											record.slug
+										) }
+										autoComplete="off"
+										spellCheck="false"
+										help={
+											<>
+												{ __(
+													'The last part of the URL.'
+												) }{ ' ' }
+												<ExternalLink
+													href={ __(
+														'https://wordpress.org/documentation/article/page-post-settings-sidebar/#permalink'
+													) }
+												>
+													{ __( 'Learn more.' ) }
+												</ExternalLink>
+											</>
+										}
+										onChange={ onSlugChange }
+										onBlur={ ( event ) => {
+											if ( ! event.target.value ) {
+												onSlugChange(
+													savedRecord?.slug
+												);
+											}
+										} }
+									/>
+								) }
+								<VStack spacing={ 1 }>
+									<Text
+										size="11"
+										lineHeight={ 1.4 }
+										weight={ 500 }
+										upperCase={ true }
+									>
+										{ viewPostLabel || __( 'View post' ) }
+									</Text>
+									<ExternalLink
+										className="editor-post-url__link"
+										href={ record.link }
+										target="_blank"
+									>
+										{ record.link }
+									</ExternalLink>
+								</VStack>
+							</VStack>
+						</>
+					);
+				} }
+			/>
+		</HStack>
+	);
+}
diff --git a/packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-summary.js b/packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-summary.js
index c4dafeab6cb37..25b69985bcbd6 100644
--- a/packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-summary.js
+++ b/packages/edit-site/src/components/sidebar-edit-mode/page-panels/page-summary.js
@@ -8,6 +8,7 @@ import { __experimentalVStack as VStack } from '@wordpress/components';
 import PageStatus from './page-status';
 import PublishDate from './publish-date';
 import EditTemplate from './edit-template';
+import PageSlug from './page-slug';
 
 export default function PageSummary( {
 	status,
@@ -32,6 +33,7 @@ export default function PageSummary( {
 				postType={ postType }
 			/>
 			<EditTemplate />
+			<PageSlug postId={ postId } postType={ postType } />
 		</VStack>
 	);
 }
diff --git a/packages/edit-site/src/components/sidebar-edit-mode/page-panels/style.scss b/packages/edit-site/src/components/sidebar-edit-mode/page-panels/style.scss
index 5501fe49e5876..e1a8e4acb7227 100644
--- a/packages/edit-site/src/components/sidebar-edit-mode/page-panels/style.scss
+++ b/packages/edit-site/src/components/sidebar-edit-mode/page-panels/style.scss
@@ -85,3 +85,10 @@
 		min-width: 240px;
 	}
 }
+
+.edit-site-page-panels-edit-slug__dropdown {
+	.components-popover__content {
+		min-width: 320px;
+		padding: $grid-unit-20;
+	}
+}