gutenberg / gutenberg.php

gutenberg.php in Gutenberg 5.2.0, at gutenberg.php

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1	<?php
2	/**
3	* Plugin Name: Gutenberg
4	* Plugin URI: https://github.com/WordPress/gutenberg
5	* Description: Printing since 1440. This is the development plugin for the new block editor in core.
6	* Version: 5.2.0
7	* Author: Gutenberg Team
8	* Text Domain: gutenberg
9	*
10	* @package gutenberg
11	*/
12
13	### BEGIN AUTO-GENERATED DEFINES
14	define( 'GUTENBERG_VERSION', '5.2.0' );
15	define( 'GUTENBERG_GIT_COMMIT', '6de5263995fb574229fdd4b388f38a1006710746' );
16	### END AUTO-GENERATED DEFINES
17
18	gutenberg_pre_init();
19
20	/**
21	* Project.
22	*
23	* The main entry point for the Gutenberg editor. Renders the editor on the
24	* wp-admin page for the plugin.
25	*
26	* The gutenberg and gutenberg__editor classNames are left for backward compatibility.
27	*
28	* @since 0.1.0
29	*/
30	function the_gutenberg_project() {
31	global $post_type_object;
32	?>
33	<noscript>
34	<div class="error" style="position:absolute;top:32px;z-index:40"><p>
35	<?php
36	printf(
37	/* translators: %s: https://wordpress.org/plugins/classic-editor/ */
38	__( 'The Block Editor requires JavaScript. Please try the <a href="%s">Classic Editor plugin</a>.', 'gutenberg' ),
39	__( 'https://wordpress.org/plugins/classic-editor/', 'gutenberg' )
40	);
41	?>
42	</p></div>
43	</noscript>
44	<div class="block-editor gutenberg">
45	<h1 class="screen-reader-text"><?php echo esc_html( $post_type_object->labels->edit_item ); ?></h1>
46	<div id="editor" class="block-editor__container gutenberg__editor"></div>
47	<div id="metaboxes" class="hidden">
48	<?php the_block_editor_meta_boxes(); ?>
49	</div>
50	</div>
51	<?php
52	}
53
54	/**
55	* Gutenberg's Menu.
56	*
57	* Adds a new wp-admin menu page for the Gutenberg editor.
58	*
59	* @since 0.1.0
60	*/
61	function gutenberg_menu() {
62	global $submenu;
63
64	add_menu_page(
65	'Gutenberg',
66	'Gutenberg',
67	'edit_posts',
68	'gutenberg',
69	'the_gutenberg_project',
70	'dashicons-edit'
71	);
72
73	add_submenu_page(
74	'gutenberg',
75	__( 'Demo', 'gutenberg' ),
76	__( 'Demo', 'gutenberg' ),
77	'edit_posts',
78	'gutenberg'
79	);
80
81	add_submenu_page(
82	'gutenberg',
83	__( 'Widgets (beta)', 'gutenberg' ),
84	__( 'Widgets (beta)', 'gutenberg' ),
85	'edit_theme_options',
86	'gutenberg-widgets',
87	'the_gutenberg_widgets'
88	);
89
90	if ( current_user_can( 'edit_posts' ) ) {
91	$submenu['gutenberg'][] = array(
92	__( 'Support', 'gutenberg' ),
93	'edit_posts',
94	__( 'https://wordpress.org/support/plugin/gutenberg', 'gutenberg' ),
95	);
96
97	$submenu['gutenberg'][] = array(
98	__( 'Documentation', 'gutenberg' ),
99	'edit_posts',
100	'https://wordpress.org/gutenberg/handbook/',
101	);
102	}
103	}
104	add_action( 'admin_menu', 'gutenberg_menu' );
105
106	/**
107	* Checks whether we're currently loading a Gutenberg page
108	*
109	* @return boolean Whether Gutenberg is being loaded.
110	*
111	* @since 3.1.0
112	*/
113	function is_gutenberg_page() {
114	global $post;
115
116	if ( ! is_admin() ) {
117	return false;
118	}
119
120	/*
121	* There have been reports of specialized loading scenarios where `get_current_screen`
122	* does not exist. In these cases, it is safe to say we are not loading Gutenberg.
123	*/
124	if ( ! function_exists( 'get_current_screen' ) ) {
125	return false;
126	}
127
128	if ( get_current_screen()->base !== 'post' ) {
129	return false;
130	}
131
132	if ( ! use_block_editor_for_post( $post ) ) {
133	return false;
134	}
135
136	return true;
137	}
138
139	/**
140	* Display a version notice and deactivate the Gutenberg plugin.
141	*
142	* @since 0.1.0
143	*/
144	function gutenberg_wordpress_version_notice() {
145	echo '<div class="error"><p>';
146	/* translators: %s: Minimum required version */
147	printf( __( 'Gutenberg requires WordPress %s or later to function properly. Please upgrade WordPress before activating Gutenberg.', 'gutenberg' ), '5.0.0' );
148	echo '</p></div>';
149
150	deactivate_plugins( array( 'gutenberg/gutenberg.php' ) );
151	}
152
153	/**
154	* Display a build notice.
155	*
156	* @since 0.1.0
157	*/
158	function gutenberg_build_files_notice() {
159	echo '<div class="error"><p>';
160	_e( 'Gutenberg development mode requires files to be built. Run <code>npm install</code> to install dependencies, <code>npm run build</code> to build the files or <code>npm run dev</code> to build the files and watch for changes. Read the <a href="https://github.com/WordPress/gutenberg/blob/master/CONTRIBUTING.md">contributing</a> file for more information.', 'gutenberg' );
161	echo '</p></div>';
162	}
163
164	/**
165	* Verify that we can initialize the Gutenberg editor , then load it.
166	*
167	* @since 1.5.0
168	*/
169	function gutenberg_pre_init() {
170	if ( defined( 'GUTENBERG_DEVELOPMENT_MODE' ) && GUTENBERG_DEVELOPMENT_MODE && ! file_exists( dirname( __FILE__ ) . '/build/blocks' ) ) {
171	add_action( 'admin_notices', 'gutenberg_build_files_notice' );
172	return;
173	}
174
175	// Get unmodified $wp_version.
176	include ABSPATH . WPINC . '/version.php';
177
178	// Strip '-src' from the version string. Messes up version_compare().
179	$version = str_replace( '-src', '', $wp_version );
180
181	if ( version_compare( $version, '5.0.0', '<' ) ) {
182	add_action( 'admin_notices', 'gutenberg_wordpress_version_notice' );
183	return;
184	}
185
186	require_once dirname( __FILE__ ) . '/lib/load.php';
187
188	add_filter( 'replace_editor', 'gutenberg_init', 10, 2 );
189	}
190
191	/**
192	* Initialize Gutenberg.
193	*
194	* Load API functions, register scripts and actions, etc.
195	*
196	* @param bool $return Whether to replace the editor. Used in the `replace_editor` filter.
197	* @param object $post The post to edit or an auto-draft.
198	* @return bool Whether Gutenberg was initialized.
199	*/
200	function gutenberg_init( $return, $post ) {
201	if ( true === $return && current_filter() === 'replace_editor' ) {
202	return $return;
203	}
204
205	if ( ! is_gutenberg_page() ) {
206	return false;
207	}
208
209	// Instruct WordPress that this is the block editor. Without this, a call
210	// to `is_block_editor()` would yield `false` while editing a post with
211	// Gutenberg.
212	//
213	// [TODO]: This is temporary so long as Gutenberg is implemented to use
214	// `replace_editor`, rather than allow `edit-form-blocks.php` from core to
215	// take effect, where this would otherwise be assigned.
216	get_current_screen()->is_block_editor( true );
217
218	add_action( 'admin_enqueue_scripts', 'gutenberg_editor_scripts_and_styles' );
219	add_filter( 'screen_options_show_screen', '__return_false' );
220
221	/*
222	* Remove the emoji script as it is incompatible with both React and any
223	* contenteditable fields.
224	*/
225	remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
226
227	/*
228	* Ensure meta box functions are available to third-party code;
229	* includes/meta-boxes is typically loaded from edit-form-advanced.php.
230	*/
231	require_once ABSPATH . 'wp-admin/includes/meta-boxes.php';
232	register_and_do_post_meta_boxes( $post );
233
234	require_once ABSPATH . 'wp-admin/admin-header.php';
235	the_gutenberg_project();
236
237	return true;
238	}
239