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Classic Editor / 1.6.7
Classic Editor v1.6.7
1.7.0 trunk 0.1 0.2 0.3 0.4 0.5 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.6.1 1.6.2 1.6.3 1.6.4 1.6.5 1.6.6 1.6.7
classic-editor / classic-editor.php
classic-editor Last commit date
js 5 years ago scripts 1 year ago LICENSE.md 5 years ago classic-editor.php 1 year ago readme.txt 5 months ago
classic-editor.php
1034 lines
1 <?php
2 /**
3 * Classic Editor
4 *
5 * Plugin Name: Classic Editor
6 * Plugin URI: https://wordpress.org/plugins/classic-editor/
7 * Description: Enables the WordPress classic editor and the old-style Edit Post screen with TinyMCE, Meta Boxes, etc. Supports the older plugins that extend this screen.
8 * Version: 1.6.7
9 * Author: WordPress Contributors
10 * Author URI: https://github.com/WordPress/classic-editor/
11 * License: GPLv2 or later
12 * License URI: http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
13 * Text Domain: classic-editor
14 * Domain Path: /languages
15 * Requires at least: 4.9
16 * Requires PHP: 5.2.4
17 *
18 * This program is free software; you can redistribute it and/or modify it under the terms of the GNU
19 * General Public License version 2, as published by the Free Software Foundation. You may NOT assume
20 * that you can use any other version of the GPL.
21 *
22 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
23 * even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
24 */
25
26 if ( ! defined( 'ABSPATH' ) ) {
27 die( 'Invalid request.' );
28 }
29
30 if ( ! class_exists( 'Classic_Editor' ) ) :
31 class Classic_Editor {
32 private static $settings;
33 private static $supported_post_types = array();
34
35 private function __construct() {}
36
37 public static function init_actions() {
38 $block_editor = has_action( 'enqueue_block_assets' );
39 $gutenberg = function_exists( 'gutenberg_register_scripts_and_styles' );
40
41 register_activation_hook( __FILE__, array( __CLASS__, 'activate' ) );
42
43 $settings = self::get_settings();
44
45 if ( is_multisite() ) {
46 add_action( 'wpmu_options', array( __CLASS__, 'network_settings' ) );
47 add_action( 'update_wpmu_options', array( __CLASS__, 'save_network_settings' ) );
48 }
49
50 if ( ! $settings['hide-settings-ui'] ) {
51 // Add a link to the plugin's settings and/or network admin settings in the plugins list table.
52 add_filter( 'plugin_action_links', array( __CLASS__, 'add_settings_link' ), 10, 2 );
53 add_filter( 'network_admin_plugin_action_links', array( __CLASS__, 'add_settings_link' ), 10, 2 );
54
55 add_action( 'admin_init', array( __CLASS__, 'register_settings' ) );
56
57 if ( $settings['allow-users'] ) {
58 // User settings.
59 add_action( 'personal_options_update', array( __CLASS__, 'save_user_settings' ) );
60 add_action( 'edit_user_profile_update', array( __CLASS__, 'save_user_settings' ) );
61 add_action( 'profile_personal_options', array( __CLASS__, 'user_settings' ) );
62 add_action( 'edit_user_profile', array( __CLASS__, 'user_settings') );
63 }
64 }
65
66 // Always remove the "Try Gutenberg" dashboard widget. See https://core.trac.wordpress.org/ticket/44635.
67 remove_action( 'try_gutenberg_panel', 'wp_try_gutenberg_panel' );
68
69 // Fix for Safari 18 negative horizontal margin on floats.
70 add_action( 'admin_print_styles', array( __CLASS__, 'safari_18_temp_fix' ) );
71
72 // Fix for the Categories postbox on the classic Edit Post screen for WP 6.7.1.
73 global $wp_version;
74
75 if ( '6.7.1' === $wp_version && is_admin() ) {
76 add_filter( 'script_loader_src', array( __CLASS__, 'replace_post_js_2' ), 11, 2 );
77 }
78
79 if ( ! $block_editor && ! $gutenberg ) {
80 return;
81 }
82
83 if ( $settings['allow-users'] ) {
84 // Also used in Gutenberg.
85 add_filter( 'use_block_editor_for_post', array( __CLASS__, 'choose_editor' ), 100, 2 );
86
87 if ( $gutenberg ) {
88 // Support older Gutenberg versions.
89 add_filter( 'gutenberg_can_edit_post', array( __CLASS__, 'choose_editor' ), 100, 2 );
90
91 if ( $settings['editor'] === 'classic' ) {
92 self::remove_gutenberg_hooks( 'some' );
93 }
94 }
95
96 add_filter( 'get_edit_post_link', array( __CLASS__, 'get_edit_post_link' ) );
97 add_filter( 'redirect_post_location', array( __CLASS__, 'redirect_location' ) );
98 add_action( 'edit_form_top', array( __CLASS__, 'add_redirect_helper' ) );
99 add_action( 'admin_head-edit.php', array( __CLASS__, 'add_edit_php_inline_style' ) );
100
101 add_action( 'edit_form_top', array( __CLASS__, 'remember_classic_editor' ) );
102
103 if ( version_compare( $GLOBALS['wp_version'], '5.8', '>=' ) ) {
104 add_filter( 'block_editor_settings_all', array( __CLASS__, 'remember_block_editor' ), 10, 2 );
105 } else {
106 add_filter( 'block_editor_settings', array( __CLASS__, 'remember_block_editor' ), 10, 2 );
107 }
108
109 // Post state (edit.php)
110 add_filter( 'display_post_states', array( __CLASS__, 'add_post_state' ), 10, 2 );
111 // Row actions (edit.php)
112 add_filter( 'page_row_actions', array( __CLASS__, 'add_edit_links' ), 15, 2 );
113 add_filter( 'post_row_actions', array( __CLASS__, 'add_edit_links' ), 15, 2 );
114
115 // Switch editors while editing a post
116 add_action( 'add_meta_boxes', array( __CLASS__, 'add_meta_box' ), 10, 2 );
117 add_action( 'enqueue_block_editor_assets', array( __CLASS__, 'enqueue_block_editor_scripts' ) );
118 } else {
119 if ( $settings['editor'] === 'classic' ) {
120 // Also used in Gutenberg.
121 // Consider disabling other Block Editor functionality.
122 add_filter( 'use_block_editor_for_post_type', '__return_false', 100 );
123
124 if ( $gutenberg ) {
125 // Support older Gutenberg versions.
126 add_filter( 'gutenberg_can_edit_post_type', '__return_false', 100 );
127 self::remove_gutenberg_hooks();
128 }
129 } else {
130 // $settings['editor'] === 'block', nothing to do :)
131 return;
132 }
133 }
134
135 if ( $block_editor ) {
136 // Move the Privacy Page notice back under the title.
137 add_action( 'admin_init', array( __CLASS__, 'on_admin_init' ) );
138 }
139 if ( $gutenberg ) {
140 // These are handled by this plugin. All are older, not used in 5.3+.
141 remove_action( 'admin_init', 'gutenberg_add_edit_link_filters' );
142 remove_action( 'admin_print_scripts-edit.php', 'gutenberg_replace_default_add_new_button' );
143 remove_filter( 'redirect_post_location', 'gutenberg_redirect_to_classic_editor_when_saving_posts' );
144 remove_filter( 'display_post_states', 'gutenberg_add_gutenberg_post_state' );
145 remove_action( 'edit_form_top', 'gutenberg_remember_classic_editor_when_saving_posts' );
146 }
147 }
148
149 public static function remove_gutenberg_hooks( $remove = 'all' ) {
150 remove_action( 'admin_menu', 'gutenberg_menu' );
151 remove_action( 'admin_init', 'gutenberg_redirect_demo' );
152
153 if ( $remove !== 'all' ) {
154 return;
155 }
156
157 // Gutenberg 5.3+
158 remove_action( 'wp_enqueue_scripts', 'gutenberg_register_scripts_and_styles' );
159 remove_action( 'admin_enqueue_scripts', 'gutenberg_register_scripts_and_styles' );
160 remove_action( 'admin_notices', 'gutenberg_wordpress_version_notice' );
161 remove_action( 'rest_api_init', 'gutenberg_register_rest_widget_updater_routes' );
162 remove_action( 'admin_print_styles', 'gutenberg_block_editor_admin_print_styles' );
163 remove_action( 'admin_print_scripts', 'gutenberg_block_editor_admin_print_scripts' );
164 remove_action( 'admin_print_footer_scripts', 'gutenberg_block_editor_admin_print_footer_scripts' );
165 remove_action( 'admin_footer', 'gutenberg_block_editor_admin_footer' );
166 remove_action( 'admin_enqueue_scripts', 'gutenberg_widgets_init' );
167 remove_action( 'admin_notices', 'gutenberg_build_files_notice' );
168
169 remove_filter( 'load_script_translation_file', 'gutenberg_override_translation_file' );
170 remove_filter( 'block_editor_settings', 'gutenberg_extend_block_editor_styles' );
171 remove_filter( 'default_content', 'gutenberg_default_demo_content' );
172 remove_filter( 'default_title', 'gutenberg_default_demo_title' );
173 remove_filter( 'block_editor_settings', 'gutenberg_legacy_widget_settings' );
174 remove_filter( 'rest_request_after_callbacks', 'gutenberg_filter_oembed_result' );
175
176 // Previously used, compat for older Gutenberg versions.
177 remove_filter( 'wp_refresh_nonces', 'gutenberg_add_rest_nonce_to_heartbeat_response_headers' );
178 remove_filter( 'get_edit_post_link', 'gutenberg_revisions_link_to_editor' );
179 remove_filter( 'wp_prepare_revision_for_js', 'gutenberg_revisions_restore' );
180
181 remove_action( 'rest_api_init', 'gutenberg_register_rest_routes' );
182 remove_action( 'rest_api_init', 'gutenberg_add_taxonomy_visibility_field' );
183 remove_filter( 'registered_post_type', 'gutenberg_register_post_prepare_functions' );
184
185 remove_action( 'do_meta_boxes', 'gutenberg_meta_box_save' );
186 remove_action( 'submitpost_box', 'gutenberg_intercept_meta_box_render' );
187 remove_action( 'submitpage_box', 'gutenberg_intercept_meta_box_render' );
188 remove_action( 'edit_page_form', 'gutenberg_intercept_meta_box_render' );
189 remove_action( 'edit_form_advanced', 'gutenberg_intercept_meta_box_render' );
190 remove_filter( 'redirect_post_location', 'gutenberg_meta_box_save_redirect' );
191 remove_filter( 'filter_gutenberg_meta_boxes', 'gutenberg_filter_meta_boxes' );
192
193 remove_filter( 'body_class', 'gutenberg_add_responsive_body_class' );
194 remove_filter( 'admin_url', 'gutenberg_modify_add_new_button_url' ); // old
195 remove_action( 'admin_enqueue_scripts', 'gutenberg_check_if_classic_needs_warning_about_blocks' );
196 remove_filter( 'register_post_type_args', 'gutenberg_filter_post_type_labels' );
197
198 // phpcs:disable Squiz.PHP.CommentedOutCode.Found
199 // Keep
200 // remove_filter( 'wp_kses_allowed_html', 'gutenberg_kses_allowedtags', 10, 2 ); // not needed in 5.0
201 // remove_filter( 'bulk_actions-edit-wp_block', 'gutenberg_block_bulk_actions' );
202 // remove_filter( 'wp_insert_post_data', 'gutenberg_remove_wpcom_markdown_support' );
203 // remove_filter( 'the_content', 'do_blocks', 9 );
204 // remove_action( 'init', 'gutenberg_register_post_types' );
205
206 // Continue to manage wpautop for posts that were edited in Gutenberg.
207 // remove_filter( 'wp_editor_settings', 'gutenberg_disable_editor_settings_wpautop' );
208 // remove_filter( 'the_content', 'gutenberg_wpautop', 8 );
209 // phpcs:enable Squiz.PHP.CommentedOutCode.Found
210
211 }
212
213 private static function get_settings( $refresh = 'no', $user_id = 0 ) {
214 /**
215 * Can be used to override the plugin's settings. Always hides the settings UI when used (as users cannot change the settings).
216 *
217 * Has to return an associative array with two keys.
218 * The defaults are:
219 * 'editor' => 'classic', // Accepted values: 'classic', 'block'.
220 * 'allow-users' => false,
221 *
222 * @param boolean To override the settings return an array with the above keys. Default false.
223 */
224 $settings = apply_filters( 'classic_editor_plugin_settings', false );
225
226 if ( is_array( $settings ) ) {
227 return array(
228 'editor' => ( isset( $settings['editor'] ) && $settings['editor'] === 'block' ) ? 'block' : 'classic',
229 'allow-users' => ! empty( $settings['allow-users'] ),
230 'hide-settings-ui' => true,
231 );
232 }
233
234 if ( ! empty( self::$settings ) && $refresh === 'no' ) {
235 return self::$settings;
236 }
237
238 if ( is_multisite() ) {
239 $defaults = array(
240 'editor' => get_network_option( null, 'classic-editor-replace' ) === 'block' ? 'block' : 'classic',
241 'allow-users' => false,
242 );
243
244 /**
245 * Filters the default network options.
246 *
247 * @param array $defaults The default options array. See `classic_editor_plugin_settings` for supported keys and values.
248 */
249 $defaults = apply_filters( 'classic_editor_network_default_settings', $defaults );
250
251 if ( get_network_option( null, 'classic-editor-allow-sites' ) !== 'allow' ) {
252 // Per-site settings are disabled. Return default network options nad hide the settings UI.
253 $defaults['hide-settings-ui'] = true;
254 return $defaults;
255 }
256
257 // Override with the site options.
258 $editor_option = get_option( 'classic-editor-replace' );
259 $allow_users_option = get_option( 'classic-editor-allow-users' );
260
261 if ( $editor_option ) {
262 $defaults['editor'] = $editor_option;
263 }
264 if ( $allow_users_option ) {
265 $defaults['allow-users'] = ( $allow_users_option === 'allow' );
266 }
267
268 $editor = ( isset( $defaults['editor'] ) && $defaults['editor'] === 'block' ) ? 'block' : 'classic';
269 $allow_users = ! empty( $defaults['allow-users'] );
270 } else {
271 $allow_users = ( get_option( 'classic-editor-allow-users' ) === 'allow' );
272 $option = get_option( 'classic-editor-replace' );
273
274 // Normalize old options.
275 if ( $option === 'block' || $option === 'no-replace' ) {
276 $editor = 'block';
277 } else {
278 // empty( $option ) || $option === 'classic' || $option === 'replace'
279 $editor = 'classic';
280 }
281 }
282
283 // Override the defaults with the user options.
284 if ( ( ! isset( $GLOBALS['pagenow'] ) || $GLOBALS['pagenow'] !== 'options-writing.php' ) && $allow_users ) {
285
286 $user_options = get_user_option( 'classic-editor-settings', $user_id );
287
288 if ( $user_options === 'block' || $user_options === 'classic' ) {
289 $editor = $user_options;
290 }
291 }
292
293 self::$settings = array(
294 'editor' => $editor,
295 'hide-settings-ui' => false,
296 'allow-users' => $allow_users,
297 );
298
299 return self::$settings;
300 }
301
302 private static function is_classic( $post_id = 0 ) {
303 if ( ! $post_id ) {
304 $post_id = self::get_edited_post_id();
305 }
306
307 if ( $post_id ) {
308 $settings = self::get_settings();
309
310 if ( $settings['allow-users'] && ! isset( $_GET['classic-editor__forget'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
311 $which = get_post_meta( $post_id, 'classic-editor-remember', true );
312
313 if ( $which ) {
314 // The editor choice will be "remembered" when the post is opened in either the classic or the block editor.
315 if ( 'classic-editor' === $which ) {
316 return true;
317 } elseif ( 'block-editor' === $which ) {
318 return false;
319 }
320 }
321
322 return ( ! self::has_blocks( $post_id ) );
323 }
324 }
325
326 if ( isset( $_GET['classic-editor'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
327 return true;
328 }
329
330 return false;
331 }
332
333 /**
334 * Get the edited post ID (early) when loading the Edit Post screen.
335 */
336 private static function get_edited_post_id() {
337 // phpcs:disable WordPress.Security.NonceVerification.Recommended
338 if (
339 ! empty( $_GET['post'] ) &&
340 ! empty( $_GET['action'] ) &&
341 $_GET['action'] === 'edit' &&
342 ! empty( $GLOBALS['pagenow'] ) &&
343 $GLOBALS['pagenow'] === 'post.php'
344 ) {
345 return (int) $_GET['post']; // post_ID
346 }
347 // phpcs:enable WordPress.Security.NonceVerification.Recommended
348
349 return 0;
350 }
351
352 public static function register_settings() {
353 // Add an option to Settings -> Writing
354 register_setting( 'writing', 'classic-editor-replace', array(
355 'sanitize_callback' => array( __CLASS__, 'validate_option_editor' ),
356 ) );
357
358 register_setting( 'writing', 'classic-editor-allow-users', array(
359 'sanitize_callback' => array( __CLASS__, 'validate_option_allow_users' ),
360 ) );
361
362 $allowed_options = array(
363 'writing' => array(
364 'classic-editor-replace',
365 'classic-editor-allow-users'
366 ),
367 );
368
369 if ( function_exists( 'add_allowed_options' ) ) {
370 add_allowed_options( $allowed_options );
371 } else {
372 add_option_whitelist( $allowed_options );
373 }
374
375 $heading_1 = __( 'Default editor for all users', 'classic-editor' );
376 $heading_2 = __( 'Allow users to switch editors', 'classic-editor' );
377
378 add_settings_field( 'classic-editor-1', $heading_1, array( __CLASS__, 'settings_1' ), 'writing' );
379 add_settings_field( 'classic-editor-2', $heading_2, array( __CLASS__, 'settings_2' ), 'writing' );
380 }
381
382 public static function save_user_settings( $user_id ) {
383 if (
384 isset( $_POST['classic-editor-user-settings'] ) &&
385 isset( $_POST['classic-editor-replace'] ) &&
386 wp_verify_nonce( $_POST['classic-editor-user-settings'], 'allow-user-settings' ) // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
387 ) {
388 $user_id = (int) $user_id;
389
390 if ( $user_id !== get_current_user_id() && ! current_user_can( 'edit_user', $user_id ) ) {
391 return;
392 }
393
394 $editor = self::validate_option_editor( $_POST['classic-editor-replace'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
395 update_user_option( $user_id, 'classic-editor-settings', $editor );
396 }
397 }
398
399 /**
400 * Validate
401 */
402 public static function validate_option_editor( $value ) {
403 if ( $value === 'block' ) {
404 return 'block';
405 }
406
407 return 'classic';
408 }
409
410 public static function validate_option_allow_users( $value ) {
411 if ( $value === 'allow' ) {
412 return 'allow';
413 }
414
415 return 'disallow';
416 }
417
418 public static function settings_1( $user_id = 0 ) {
419 $settings = self::get_settings( 'refresh', $user_id );
420
421 ?>
422 <div class="classic-editor-options">
423 <p>
424 <input type="radio" name="classic-editor-replace" id="classic-editor-classic" value="classic"<?php if ( $settings['editor'] === 'classic' ) echo ' checked'; ?> />
425 <label for="classic-editor-classic"><?php _ex( 'Classic editor', 'Editor Name', 'classic-editor' ); ?></label>
426 </p>
427 <p>
428 <input type="radio" name="classic-editor-replace" id="classic-editor-block" value="block"<?php if ( $settings['editor'] !== 'classic' ) echo ' checked'; ?> />
429 <label for="classic-editor-block"><?php _ex( 'Block editor', 'Editor Name', 'classic-editor' ); ?></label>
430 </p>
431 </div>
432 <script>
433 jQuery( 'document' ).ready( function( $ ) {
434 if ( window.location.hash === '#classic-editor-options' ) {
435 $( '.classic-editor-options' ).closest( 'td' ).addClass( 'highlight' );
436 }
437 } );
438 </script>
439 <?php
440 }
441
442 public static function settings_2() {
443 $settings = self::get_settings( 'refresh' );
444
445 ?>
446 <div class="classic-editor-options">
447 <p>
448 <input type="radio" name="classic-editor-allow-users" id="classic-editor-allow" value="allow"<?php if ( $settings['allow-users'] ) echo ' checked'; ?> />
449 <label for="classic-editor-allow"><?php _e( 'Yes', 'classic-editor' ); ?></label>
450 </p>
451 <p>
452 <input type="radio" name="classic-editor-allow-users" id="classic-editor-disallow" value="disallow"<?php if ( ! $settings['allow-users'] ) echo ' checked'; ?> />
453 <label for="classic-editor-disallow"><?php _e( 'No', 'classic-editor' ); ?></label>
454 </p>
455 </div>
456 <?php
457 }
458
459 /**
460 * Shown on the Profile page when allowed by admin.
461 */
462 public static function user_settings( $user = null ) {
463 global $user_can_edit;
464 $settings = self::get_settings( 'update' );
465
466 if ( ! $user_can_edit || ! $settings['allow-users'] ) {
467 return;
468 }
469
470 if ( $user instanceof WP_User ) {
471 $user_id = (int) $user->ID;
472 } else {
473 $user_id = 0;
474 }
475
476 ?>
477 <table class="form-table">
478 <tr class="classic-editor-user-options">
479 <th scope="row"><?php _e( 'Default Editor', 'classic-editor' ); ?></th>
480 <td>
481 <?php wp_nonce_field( 'allow-user-settings', 'classic-editor-user-settings' ); ?>
482 <?php self::settings_1( $user_id ); ?>
483 </td>
484 </tr>
485 </table>
486 <script>jQuery( 'tr.user-rich-editing-wrap' ).before( jQuery( 'tr.classic-editor-user-options' ) );</script>
487 <?php
488 }
489
490 public static function network_settings() {
491 $editor = get_network_option( null, 'classic-editor-replace' );
492 $is_checked = ( get_network_option( null, 'classic-editor-allow-sites' ) === 'allow' );
493
494 ?>
495 <h2 id="classic-editor-options"><?php _e( 'Editor Settings', 'classic-editor' ); ?></h2>
496 <table class="form-table">
497 <?php wp_nonce_field( 'allow-site-admin-settings', 'classic-editor-network-settings' ); ?>
498 <tr>
499 <th scope="row"><?php _e( 'Default editor for all sites', 'classic-editor' ); ?></th>
500 <td>
501 <p>
502 <input type="radio" name="classic-editor-replace" id="classic-editor-classic" value="classic"<?php if ( $editor !== 'block' ) echo ' checked'; ?> />
503 <label for="classic-editor-classic"><?php _ex( 'Classic Editor', 'Editor Name', 'classic-editor' ); ?></label>
504 </p>
505 <p>
506 <input type="radio" name="classic-editor-replace" id="classic-editor-block" value="block"<?php if ( $editor === 'block' ) echo ' checked'; ?> />
507 <label for="classic-editor-block"><?php _ex( 'Block editor', 'Editor Name', 'classic-editor' ); ?></label>
508 </p>
509 </td>
510 </tr>
511 <tr>
512 <th scope="row"><?php _e( 'Change settings', 'classic-editor' ); ?></th>
513 <td>
514 <input type="checkbox" name="classic-editor-allow-sites" id="classic-editor-allow-sites" value="allow"<?php if ( $is_checked ) echo ' checked'; ?>>
515 <label for="classic-editor-allow-sites"><?php _e( 'Allow site admins to change settings', 'classic-editor' ); ?></label>
516 <p class="description"><?php _e( 'By default the block editor is replaced with the classic editor and users cannot switch editors.', 'classic-editor' ); ?></p>
517 </td>
518 </tr>
519 </table>
520 <?php
521 }
522
523 public static function save_network_settings() {
524 if (
525 isset( $_POST['classic-editor-network-settings'] ) &&
526 current_user_can( 'manage_network_options' ) &&
527 wp_verify_nonce( $_POST['classic-editor-network-settings'], 'allow-site-admin-settings' ) // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
528 ) {
529 if ( isset( $_POST['classic-editor-replace'] ) && $_POST['classic-editor-replace'] === 'block' ) {
530 update_network_option( null, 'classic-editor-replace', 'block' );
531 } else {
532 update_network_option( null, 'classic-editor-replace', 'classic' );
533 }
534 if ( isset( $_POST['classic-editor-allow-sites'] ) && $_POST['classic-editor-allow-sites'] === 'allow' ) {
535 update_network_option( null, 'classic-editor-allow-sites', 'allow' );
536 } else {
537 update_network_option( null, 'classic-editor-allow-sites', 'disallow' );
538 }
539 }
540 }
541
542 /**
543 * Add a hidden field in edit-form-advanced.php
544 * to help redirect back to the classic editor on saving.
545 */
546 public static function add_redirect_helper() {
547 ?>
548 <input type="hidden" name="classic-editor" value="" />
549 <?php
550 }
551
552 /**
553 * Remember when the classic editor was used to edit a post.
554 */
555 public static function remember_classic_editor( $post ) {
556 $post_type = get_post_type( $post );
557
558 if ( $post_type && post_type_supports( $post_type, 'editor' ) ) {
559 self::remember( $post->ID, 'classic-editor' );
560 }
561 }
562
563 /**
564 * Remember when the block editor was used to edit a post.
565 */
566 public static function remember_block_editor( $editor_settings, $context ) {
567 if ( is_a( $context, 'WP_Post' ) ) {
568 $post = $context;
569 } elseif ( ! empty( $context->post ) ) {
570 $post = $context->post;
571 } else {
572 return $editor_settings;
573 }
574
575 $post_type = get_post_type( $post );
576
577 if ( $post_type && self::can_edit_post_type( $post_type ) ) {
578 self::remember( $post->ID, 'block-editor' );
579 }
580
581 return $editor_settings;
582 }
583
584 private static function remember( $post_id, $editor ) {
585 if ( get_post_meta( $post_id, 'classic-editor-remember', true ) !== $editor ) {
586 update_post_meta( $post_id, 'classic-editor-remember', $editor );
587 }
588 }
589
590 /**
591 * Choose which editor to use for a post.
592 *
593 * Passes through `$which_editor` for block editor (it's sets to `true` but may be changed by another plugin).
594 *
595 * @uses `use_block_editor_for_post` filter.
596 *
597 * @param boolean $use_block_editor True for block editor, false for classic editor.
598 * @param WP_Post $post The post being edited.
599 * @return boolean True for block editor, false for classic editor.
600 */
601 public static function choose_editor( $use_block_editor, $post ) {
602 $settings = self::get_settings();
603 $editors = self::get_enabled_editors_for_post( $post );
604
605 // If no editor is supported, pass through `$use_block_editor`.
606 if ( ! $editors['block_editor'] && ! $editors['classic_editor'] ) {
607 return $use_block_editor;
608 }
609
610 // Open the default editor when no $post and for "Add New" links,
611 // or the alternate editor when the user is switching editors.
612 // phpcs:disable WordPress.Security.NonceVerification.Recommended
613 if ( empty( $post->ID ) || $post->post_status === 'auto-draft' ) {
614 if (
615 ( $settings['editor'] === 'classic' && ! isset( $_GET['classic-editor__forget'] ) ) || // Add New
616 ( isset( $_GET['classic-editor'] ) && isset( $_GET['classic-editor__forget'] ) ) // Switch to classic editor when no draft post.
617 ) {
618 $use_block_editor = false;
619 }
620 } elseif ( self::is_classic( $post->ID ) ) {
621 $use_block_editor = false;
622 }
623 // phpcs:enable WordPress.Security.NonceVerification.Recommended
624
625 // Enforce the editor if set by plugins.
626 if ( $use_block_editor && ! $editors['block_editor'] ) {
627 $use_block_editor = false;
628 } elseif ( ! $use_block_editor && ! $editors['classic_editor'] && $editors['block_editor'] ) {
629 $use_block_editor = true;
630 }
631
632 return $use_block_editor;
633 }
634
635 /**
636 * Keep the `classic-editor` query arg through redirects when saving posts.
637 */
638 public static function redirect_location( $location ) {
639 if (
640 isset( $_REQUEST['classic-editor'] ) || // phpcs:ignore WordPress.Security.NonceVerification.Recommended
641 ( isset( $_POST['_wp_http_referer'] ) && strpos( $_POST['_wp_http_referer'], '&classic-editor' ) !== false ) // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized, WordPress.Security.NonceVerification.Missing
642 ) {
643 $location = add_query_arg( 'classic-editor', '', $location );
644 }
645
646 return $location;
647 }
648
649 /**
650 * Keep the `classic-editor` query arg when looking at revisions.
651 */
652 public static function get_edit_post_link( $url ) {
653 $settings = self::get_settings();
654
655 if ( isset( $_REQUEST['classic-editor'] ) || $settings['editor'] === 'classic' ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
656 $url = add_query_arg( 'classic-editor', '', $url );
657 }
658
659 return $url;
660 }
661
662 public static function add_meta_box( $post_type, $post ) {
663 $editors = self::get_enabled_editors_for_post( $post );
664
665 if ( ! $editors['block_editor'] || ! $editors['classic_editor'] ) {
666 // Editors cannot be switched.
667 return;
668 }
669
670 $id = 'classic-editor-switch-editor';
671 $title = __( 'Editor', 'classic-editor' );
672 $callback = array( __CLASS__, 'do_meta_box' );
673 $args = array(
674 '__back_compat_meta_box' => true,
675 );
676
677 add_meta_box( $id, $title, $callback, null, 'side', 'default', $args );
678 }
679
680 public static function do_meta_box( $post ) {
681 $edit_url = get_edit_post_link( $post->ID, 'raw' );
682
683 // Switching to block editor.
684 $edit_url = remove_query_arg( 'classic-editor', $edit_url );
685 // Forget the previous value when going to a specific editor.
686 $edit_url = add_query_arg( 'classic-editor__forget', '', $edit_url );
687
688 ?>
689 <p style="margin: 1em 0;">
690 <a href="<?php echo esc_url( $edit_url ); ?>"><?php _e( 'Switch to block editor', 'classic-editor' ); ?></a>
691 </p>
692 <?php
693 }
694
695 public static function enqueue_block_editor_scripts() {
696 // get_enabled_editors_for_post() needs a WP_Post or post_ID.
697 if ( empty( $GLOBALS['post'] ) ) {
698 return;
699 }
700
701 $editors = self::get_enabled_editors_for_post( $GLOBALS['post'] );
702
703 if ( ! $editors['classic_editor'] ) {
704 // Editor cannot be switched.
705 return;
706 }
707
708 wp_enqueue_script(
709 'classic-editor-plugin',
710 plugins_url( 'js/block-editor-plugin.js', __FILE__ ),
711 array( 'wp-element', 'wp-components', 'lodash' ),
712 '1.4',
713 true
714 );
715
716 wp_localize_script(
717 'classic-editor-plugin',
718 'classicEditorPluginL10n',
719 array( 'linkText' => __( 'Switch to classic editor', 'classic-editor' ) )
720 );
721 }
722
723 /**
724 * Add a link to the settings on the Plugins screen.
725 */
726 public static function add_settings_link( $links, $file ) {
727 $settings = self::get_settings();
728
729 if ( $file === 'classic-editor/classic-editor.php' && ! $settings['hide-settings-ui'] && current_user_can( 'manage_options' ) ) {
730 if ( current_filter() === 'plugin_action_links' ) {
731 $url = admin_url( 'options-writing.php#classic-editor-options' );
732 } else {
733 $url = admin_url( '/network/settings.php#classic-editor-options' );
734 }
735
736 // Prevent warnings in PHP 7.0+ when a plugin uses this filter incorrectly.
737 $links = (array) $links;
738 $links[] = sprintf( '<a href="%s">%s</a>', $url, __( 'Settings', 'classic-editor' ) );
739 }
740
741 return $links;
742 }
743
744 private static function can_edit_post_type( $post_type ) {
745 $can_edit = false;
746
747 if ( function_exists( 'gutenberg_can_edit_post_type' ) ) {
748 $can_edit = gutenberg_can_edit_post_type( $post_type );
749 } elseif ( function_exists( 'use_block_editor_for_post_type' ) ) {
750 $can_edit = use_block_editor_for_post_type( $post_type );
751 }
752
753 return $can_edit;
754 }
755
756 /**
757 * Checks which editors are enabled for the post type.
758 *
759 * @param string $post_type The post type.
760 * @return array Associative array of the editors and whether they are enabled for the post type.
761 */
762 private static function get_enabled_editors_for_post_type( $post_type ) {
763 if ( isset( self::$supported_post_types[ $post_type ] ) ) {
764 return self::$supported_post_types[ $post_type ];
765 }
766
767 $classic_editor = post_type_supports( $post_type, 'editor' );
768 $block_editor = self::can_edit_post_type( $post_type );
769
770 $editors = array(
771 'classic_editor' => $classic_editor,
772 'block_editor' => $block_editor,
773 );
774
775 /**
776 * Filters the editors that are enabled for the post type.
777 *
778 * @param array $editors Associative array of the editors and whether they are enabled for the post type.
779 * @param string $post_type The post type.
780 */
781 $editors = apply_filters( 'classic_editor_enabled_editors_for_post_type', $editors, $post_type );
782 self::$supported_post_types[ $post_type ] = $editors;
783
784 return $editors;
785 }
786
787 /**
788 * Checks which editors are enabled for the post.
789 *
790 * @param WP_Post $post The post object.
791 * @return array Associative array of the editors and whether they are enabled for the post.
792 */
793 private static function get_enabled_editors_for_post( $post ) {
794 $post_type = get_post_type( $post );
795
796 if ( ! $post_type ) {
797 return array(
798 'classic_editor' => false,
799 'block_editor' => false,
800 );
801 }
802
803 $editors = self::get_enabled_editors_for_post_type( $post_type );
804
805 /**
806 * Filters the editors that are enabled for the post.
807 *
808 * @param array $editors Associative array of the editors and whether they are enabled for the post.
809 * @param WP_Post $post The post object.
810 */
811 return apply_filters( 'classic_editor_enabled_editors_for_post', $editors, $post );
812 }
813
814 /**
815 * Adds links to the post/page screens to edit any post or page in
816 * the classic editor or block editor.
817 *
818 * @param array $actions Post actions.
819 * @param WP_Post $post Edited post.
820 * @return array Updated post actions.
821 */
822 public static function add_edit_links( $actions, $post ) {
823 // This is in Gutenberg, don't duplicate it.
824 if ( array_key_exists( 'classic', $actions ) ) {
825 unset( $actions['classic'] );
826 }
827
828 if ( ! array_key_exists( 'edit', $actions ) ) {
829 return $actions;
830 }
831
832 $edit_url = get_edit_post_link( $post->ID, 'raw' );
833
834 if ( ! $edit_url ) {
835 return $actions;
836 }
837
838 $editors = self::get_enabled_editors_for_post( $post );
839
840 // Do not show the links if only one editor is available.
841 if ( ! $editors['classic_editor'] || ! $editors['block_editor'] ) {
842 return $actions;
843 }
844
845 // Forget the previous value when going to a specific editor.
846 $edit_url = add_query_arg( 'classic-editor__forget', '', $edit_url );
847
848 // Build the edit actions. See also: WP_Posts_List_Table::handle_row_actions().
849 $title = _draft_or_post_title( $post->ID );
850
851 // Link to the block editor.
852 $url = remove_query_arg( 'classic-editor', $edit_url );
853 $text = _x( 'Edit (block editor)', 'Editor Name', 'classic-editor' );
854 /* translators: %s: post title */
855 $label = sprintf( __( 'Edit &#8220;%s&#8221; in the block editor', 'classic-editor' ), $title );
856 $edit_block = sprintf( '<a href="%s" aria-label="%s">%s</a>', esc_url( $url ), esc_attr( $label ), $text );
857
858 // Link to the classic editor.
859 $url = add_query_arg( 'classic-editor', '', $edit_url );
860 $text = _x( 'Edit (classic editor)', 'Editor Name', 'classic-editor' );
861 /* translators: %s: post title */
862 $label = sprintf( __( 'Edit &#8220;%s&#8221; in the classic editor', 'classic-editor' ), $title );
863 $edit_classic = sprintf( '<a href="%s" aria-label="%s">%s</a>', esc_url( $url ), esc_attr( $label ), $text );
864
865 $edit_actions = array(
866 'classic-editor-block' => $edit_block,
867 'classic-editor-classic' => $edit_classic,
868 );
869
870 // Insert the new Edit actions instead of the Edit action.
871 $edit_offset = array_search( 'edit', array_keys( $actions ), true );
872 array_splice( $actions, $edit_offset, 1, $edit_actions );
873
874 return $actions;
875 }
876
877 /**
878 * Show the editor that will be used in a "post state" in the Posts list table.
879 */
880 public static function add_post_state( $post_states, $post ) {
881 if ( get_post_status( $post ) === 'trash' ) {
882 return $post_states;
883 }
884
885 $editors = self::get_enabled_editors_for_post( $post );
886
887 if ( ! $editors['classic_editor'] && ! $editors['block_editor'] ) {
888 return $post_states;
889 } elseif ( $editors['classic_editor'] && ! $editors['block_editor'] ) {
890 // Forced to classic editor.
891 $state = '<span class="classic-editor-forced-state">' . _x( 'classic editor', 'Editor Name', 'classic-editor' ) . '</span>';
892 } elseif ( ! $editors['classic_editor'] && $editors['block_editor'] ) {
893 // Forced to block editor.
894 $state = '<span class="classic-editor-forced-state">' . _x( 'block editor', 'Editor Name', 'classic-editor' ) . '</span>';
895 } else {
896 $last_editor = get_post_meta( $post->ID, 'classic-editor-remember', true );
897
898 if ( $last_editor ) {
899 $is_classic = ( $last_editor === 'classic-editor' );
900 } elseif ( ! empty( $post->post_content ) ) {
901 $is_classic = ! self::has_blocks( $post->post_content );
902 } else {
903 $settings = self::get_settings();
904 $is_classic = ( $settings['editor'] === 'classic' );
905 }
906
907 $state = $is_classic ? _x( 'Classic editor', 'Editor Name', 'classic-editor' ) : _x( 'Block editor', 'Editor Name', 'classic-editor' );
908 }
909
910 // Fix PHP 7+ warnings if another plugin returns unexpected type.
911 $post_states = (array) $post_states;
912 $post_states['classic-editor-plugin'] = $state;
913
914 return $post_states;
915 }
916
917 public static function add_edit_php_inline_style() {
918 ?>
919 <style>
920 .classic-editor-forced-state {
921 font-style: italic;
922 font-weight: 400;
923 color: #72777c;
924 font-size: small;
925 }
926 </style>
927 <?php
928 }
929
930 public static function on_admin_init() {
931 global $pagenow;
932
933 if ( $pagenow !== 'post.php' ) {
934 return;
935 }
936
937 $settings = self::get_settings();
938 $post_id = self::get_edited_post_id();
939
940 if ( $post_id && ( $settings['editor'] === 'classic' || self::is_classic( $post_id ) ) ) {
941 // Move the Privacy Policy help notice back under the title field.
942 remove_action( 'admin_notices', array( 'WP_Privacy_Policy_Content', 'notice' ) );
943 add_action( 'edit_form_after_title', array( 'WP_Privacy_Policy_Content', 'notice' ) );
944 }
945 }
946
947 // Need to support WP < 5.0
948 private static function has_blocks( $post = null ) {
949 if ( ! is_string( $post ) ) {
950 $wp_post = get_post( $post );
951
952 if ( $wp_post instanceof WP_Post ) {
953 $post = $wp_post->post_content;
954 }
955 }
956
957 return false !== strpos( (string) $post, '<!-- wp:' );
958 }
959
960 /**
961 * Set defaults on activation.
962 */
963 public static function activate() {
964 register_uninstall_hook( __FILE__, array( __CLASS__, 'uninstall' ) );
965
966 if ( is_multisite() ) {
967 add_network_option( null, 'classic-editor-replace', 'classic' );
968 add_network_option( null, 'classic-editor-allow-sites', 'disallow' );
969 }
970
971 add_option( 'classic-editor-replace', 'classic' );
972 add_option( 'classic-editor-allow-users', 'disallow' );
973 }
974
975 /**
976 * Delete the options on uninstall.
977 */
978 public static function uninstall() {
979 if ( is_multisite() ) {
980 delete_network_option( null, 'classic-editor-replace' );
981 delete_network_option( null, 'classic-editor-allow-sites' );
982 }
983
984 delete_option( 'classic-editor-replace' );
985 delete_option( 'classic-editor-allow-users' );
986 }
987
988 /**
989 * Temporary fix for Safari 18 negative horizontal margin on floats.
990 * See: https://core.trac.wordpress.org/ticket/62082 and
991 * https://bugs.webkit.org/show_bug.cgi?id=280063.
992 * TODO: Remove when Safari is fixed.
993 */
994 public static function safari_18_temp_fix() {
995 global $current_screen;
996
997 if ( isset( $current_screen->base ) && 'post' === $current_screen->base ) {
998 $clear = is_rtl() ? 'right' : 'left';
999
1000 ?>
1001 <style id="classic-editor-safari-18-temp-fix">
1002 _::-webkit-full-page-media, _:future, :root #post-body #postbox-container-2 {
1003 clear: <?php echo $clear; ?>;
1004 }
1005 </style>
1006 <?php
1007 }
1008 }
1009
1010 // Back-compat with 1.6.6.
1011 public static function replace_post_js( $scripts ) {
1012 _deprecated_function( __METHOD__, '1.6.7' );
1013 }
1014
1015 /**
1016 * Fix for the Categories postbox on the classic Edit Post screen for WP 6.7.1.
1017 * See: https://core.trac.wordpress.org/ticket/62504 and
1018 * https://github.com/WordPress/classic-editor/issues/222.
1019 */
1020 public static function replace_post_js_2( $src, $handle ) {
1021 if ( 'post' === $handle && is_string( $src ) && false === strpos( $src, 'ver=62504-20241121' ) ) {
1022 $suffix = wp_scripts_get_suffix();
1023 $src = plugins_url( 'scripts/', __FILE__ ) . "post{$suffix}.js";
1024 $src = add_query_arg( 'ver', '62504-20241121', $src );
1025 }
1026
1027 return $src;
1028 }
1029 }
1030
1031 add_action( 'plugins_loaded', array( 'Classic_Editor', 'init_actions' ) );
1032
1033 endif;
1034