'classic', // Accepted values: 'classic', 'block'. * 'allow-users' => false, * * @param boolean To override the settings return an array with the above keys. */ $settings = apply_filters( 'classic_editor_plugin_settings', false ); if ( is_array( $settings ) ) { return array( 'editor' => ( isset( $settings['editor'] ) && $settings['editor'] === 'block' ) ? 'block' : 'classic', 'allow-users' => ! empty( $settings['allow-users'] ), 'hide-settings-ui' => true, ); } if ( ! empty( self::$settings ) && $refresh === 'no' ) { return self::$settings; } if ( is_multisite() ) { $defaults = array( 'editor' => get_network_option( null, 'classic-editor-replace' ) === 'block' ? 'block' : 'classic', 'allow-users' => false, ); /** * Filters the default network options. * * @param array $defaults The default options array. See `classic_editor_plugin_settings` for supported keys and values. */ $defaults = apply_filters( 'classic_editor_network_default_settings', $defaults ); if ( get_network_option( null, 'classic-editor-allow-sites' ) !== 'allow' ) { // Per-site settings are disabled. Return default network options nad hide the settings UI. $defaults['hide-settings-ui'] = true; return $defaults; } // Override with the site options. $editor_option = get_option( 'classic-editor-replace' ); $allow_users_option = get_option( 'classic-editor-allow-users' ); if ( $editor_option ) { $defaults['editor'] = $editor_option; } if ( $allow_users_option ) { $defaults['allow-users'] = ( $allow_users_option === 'allow' ); } $editor = ( isset( $defaults['editor'] ) && $defaults['editor'] === 'block' ) ? 'block' : 'classic'; $allow_users = ! empty( $defaults['allow-users'] ); } else { $allow_users = ( get_option( 'classic-editor-allow-users' ) === 'allow' ); $option = get_option( 'classic-editor-replace' ); // Normalize old options. if ( $option === 'block' || $option === 'no-replace' ) { $editor = 'block'; } else { // empty( $option ) || $option === 'classic' || $option === 'replace'. $editor = 'classic'; } } // Override the defaults with the user options. if ( ( ! isset( $GLOBALS['pagenow'] ) || $GLOBALS['pagenow'] !== 'options-writing.php' ) && $allow_users ) { $user_options = get_user_option( 'classic-editor-settings' ); if ( $user_options === 'block' || $user_options === 'classic' ) { $editor = $user_options; } } self::$settings = array( 'editor' => $editor, 'hide-settings-ui' => false, 'allow-users' => $allow_users, ); return self::$settings; } private static function is_classic( $post_id = 0 ) { if ( ! $post_id ) { $post_id = self::get_edited_post_id(); } if ( $post_id ) { $settings = self::get_settings(); if ( $settings['allow-users'] && ! isset( $_GET['classic-editor__forget'] ) ) { $which = get_post_meta( $post_id, 'classic-editor-remember', true ); if ( $which ) { // The editor choice will be "remembered" when the post is opened in either the classic or the block editor. if ( 'classic-editor' === $which ) { return true; } elseif ( 'block-editor' === $which ) { return false; } } return ( ! self::has_blocks( $post_id ) ); } } if ( isset( $_GET['classic-editor'] ) ) { return true; } return false; } /** * Get the edited post ID (early) when loading the Edit Post screen. */ private static function get_edited_post_id() { if ( ! empty( $_GET['post'] ) && ! empty( $_GET['action'] ) && $_GET['action'] === 'edit' && ! empty( $GLOBALS['pagenow'] ) && $GLOBALS['pagenow'] === 'post.php' ) { return (int) $_GET['post']; // post_ID } return 0; } public static function register_settings() { // Add an option to Settings -> Writing register_setting( 'writing', 'classic-editor-replace', array( 'sanitize_callback' => array( __CLASS__, 'validate_option_editor' ), ) ); register_setting( 'writing', 'classic-editor-allow-users', array( 'sanitize_callback' => array( __CLASS__, 'validate_option_allow_users' ), ) ); $allowed_options = array( 'writing' => array( 'classic-editor-replace', 'classic-editor-allow-users' ), ); if ( function_exists( 'add_allowed_options' ) ) { add_allowed_options( $allowed_options ); } else { add_option_whitelist( $allowed_options ); } $heading_1 = __( 'Default editor for all users', 'classic-editor' ); $heading_2 = __( 'Allow users to switch editors', 'classic-editor' ); add_settings_field( 'classic-editor-1', $heading_1, array( __CLASS__, 'settings_1' ), 'writing' ); add_settings_field( 'classic-editor-2', $heading_2, array( __CLASS__, 'settings_2' ), 'writing' ); } public static function save_user_settings( $user_id ) { if ( isset( $_POST['classic-editor-user-settings'] ) && isset( $_POST['classic-editor-replace'] ) && wp_verify_nonce( $_POST['classic-editor-user-settings'], 'allow-user-settings' ) ) { $user_id = (int) $user_id; if ( $user_id !== get_current_user_id() && ! current_user_can( 'edit_user', $user_id ) ) { return; } $editor = self::validate_option_editor( $_POST['classic-editor-replace'] ); update_user_option( $user_id, 'classic-editor-settings', $editor ); } } /** * Validate */ public static function validate_option_editor( $value ) { if ( $value === 'block' ) { return 'block'; } return 'classic'; } public static function validate_option_allow_users( $value ) { if ( $value === 'allow' ) { return 'allow'; } return 'disallow'; } public static function settings_1() { $settings = self::get_settings( 'refresh' ); ?>

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ID, 'classic-editor' ); } } /** * Remember when the block editor was used to edit a post. */ public static function remember_block_editor( $editor_settings, $post ) { $post_type = get_post_type( $post ); if ( $post_type && self::can_edit_post_type( $post_type ) ) { self::remember( $post->ID, 'block-editor' ); } return $editor_settings; } private static function remember( $post_id, $editor ) { if ( get_post_meta( $post_id, 'classic-editor-remember', true ) !== $editor ) { update_post_meta( $post_id, 'classic-editor-remember', $editor ); } } /** * Choose which editor to use for a post. * * Passes through `$which_editor` for block editor (it's sets to `true` but may be changed by another plugin). * * @uses `use_block_editor_for_post` filter. * * @param boolean $use_block_editor True for block editor, false for classic editor. * @param WP_Post $post The post being edited. * @return boolean True for block editor, false for classic editor. */ public static function choose_editor( $use_block_editor, $post ) { $settings = self::get_settings(); $editors = self::get_enabled_editors_for_post( $post ); // If no editor is supported, pass through `$use_block_editor`. if ( ! $editors['block_editor'] && ! $editors['classic_editor'] ) { return $use_block_editor; } // Open the default editor when no $post and for "Add New" links, // or the alternate editor when the user is switching editors. if ( empty( $post->ID ) || $post->post_status === 'auto-draft' ) { if ( ( $settings['editor'] === 'classic' && ! isset( $_GET['classic-editor__forget'] ) ) || // Add New ( isset( $_GET['classic-editor'] ) && isset( $_GET['classic-editor__forget'] ) ) // Switch to classic editor when no draft post. ) { $use_block_editor = false; } } elseif ( self::is_classic( $post->ID ) ) { $use_block_editor = false; } // Enforce the editor if set by plugins. if ( $use_block_editor && ! $editors['block_editor'] ) { $use_block_editor = false; } elseif ( ! $use_block_editor && ! $editors['classic_editor'] && $editors['block_editor'] ) { $use_block_editor = true; } return $use_block_editor; } /** * Keep the `classic-editor` query arg through redirects when saving posts. */ public static function redirect_location( $location ) { if ( isset( $_REQUEST['classic-editor'] ) || ( isset( $_POST['_wp_http_referer'] ) && strpos( $_POST['_wp_http_referer'], '&classic-editor' ) !== false ) ) { $location = add_query_arg( 'classic-editor', '', $location ); } return $location; } /** * Keep the `classic-editor` query arg when looking at revisions. */ public static function get_edit_post_link( $url ) { $settings = self::get_settings(); if ( isset( $_REQUEST['classic-editor'] ) || $settings['editor'] === 'classic' ) { $url = add_query_arg( 'classic-editor', '', $url ); } return $url; } public static function add_meta_box( $post_type, $post ) { $editors = self::get_enabled_editors_for_post( $post ); if ( ! $editors['block_editor'] || ! $editors['classic_editor'] ) { // Editors cannot be switched. return; } $id = 'classic-editor-switch-editor'; $title = __( 'Editor', 'classic-editor' ); $callback = array( __CLASS__, 'do_meta_box' ); $args = array( '__back_compat_meta_box' => true, ); add_meta_box( $id, $title, $callback, null, 'side', 'default', $args ); } public static function do_meta_box( $post ) { $edit_url = get_edit_post_link( $post->ID, 'raw' ); // Switching to block editor. $edit_url = remove_query_arg( 'classic-editor', $edit_url ); // Forget the previous value when going to a specific editor. $edit_url = add_query_arg( 'classic-editor__forget', '', $edit_url ); ?>

__( 'Switch to classic editor', 'classic-editor' ) ) ); } /** * Add a link to the settings on the Plugins screen. */ public static function add_settings_link( $links, $file ) { $settings = self::get_settings(); if ( $file === 'classic-editor/classic-editor.php' && ! $settings['hide-settings-ui'] && current_user_can( 'manage_options' ) ) { if ( current_filter() === 'plugin_action_links' ) { $url = admin_url( 'options-writing.php#classic-editor-options' ); } else { $url = admin_url( '/network/settings.php#classic-editor-options' ); } // Prevent warnings in PHP 7.0+ when a plugin uses this filter incorrectly. $links = (array) $links; $links[] = sprintf( '%s', $url, __( 'Settings', 'classic-editor' ) ); } return $links; } private static function can_edit_post_type( $post_type ) { $can_edit = false; if ( function_exists( 'gutenberg_can_edit_post_type' ) ) { $can_edit = gutenberg_can_edit_post_type( $post_type ); } elseif ( function_exists( 'use_block_editor_for_post_type' ) ) { $can_edit = use_block_editor_for_post_type( $post_type ); } return $can_edit; } /** * Checks which editors are enabled for the post type. * * @param string $post_type The post type. * @return array Associative array of the editors and whether they are enabled for the post type. */ private static function get_enabled_editors_for_post_type( $post_type ) { if ( isset( self::$supported_post_types[ $post_type ] ) ) { return self::$supported_post_types[ $post_type ]; } $classic_editor = post_type_supports( $post_type, 'editor' ); $block_editor = self::can_edit_post_type( $post_type ); $editors = array( 'classic_editor' => $classic_editor, 'block_editor' => $block_editor, ); /** * Filters the editors that are enabled for the post type. * * @param array $editors Associative array of the editors and whether they are enabled for the post type. * @param string $post_type The post type. */ $editors = apply_filters( 'classic_editor_enabled_editors_for_post_type', $editors, $post_type ); self::$supported_post_types[ $post_type ] = $editors; return $editors; } /** * Checks which editors are enabled for the post. * * @param WP_Post $post The post object. * @return array Associative array of the editors and whether they are enabled for the post. */ private static function get_enabled_editors_for_post( $post ) { $post_type = get_post_type( $post ); if ( ! $post_type ) { return array( 'classic_editor' => false, 'block_editor' => false, ); } $editors = self::get_enabled_editors_for_post_type( $post_type ); /** * Filters the editors that are enabled for the post. * * @param array $editors Associative array of the editors and whether they are enabled for the post. * @param WP_Post $post The post object. */ return apply_filters( 'classic_editor_enabled_editors_for_post', $editors, $post ); } /** * Adds links to the post/page screens to edit any post or page in * the classic editor or block editor. * * @param array $actions Post actions. * @param WP_Post $post Edited post. * @return array Updated post actions. */ public static function add_edit_links( $actions, $post ) { // This is in Gutenberg, don't duplicate it. if ( array_key_exists( 'classic', $actions ) ) { unset( $actions['classic'] ); } if ( ! array_key_exists( 'edit', $actions ) ) { return $actions; } $edit_url = get_edit_post_link( $post->ID, 'raw' ); if ( ! $edit_url ) { return $actions; } $editors = self::get_enabled_editors_for_post( $post ); // Do not show the links if only one editor is available. if ( ! $editors['classic_editor'] || ! $editors['block_editor'] ) { return $actions; } // Forget the previous value when going to a specific editor. $edit_url = add_query_arg( 'classic-editor__forget', '', $edit_url ); // Build the edit actions. See also: WP_Posts_List_Table::handle_row_actions(). $title = _draft_or_post_title( $post->ID ); // Link to the block editor. $url = remove_query_arg( 'classic-editor', $edit_url ); $text = _x( 'Edit (block editor)', 'Editor Name', 'classic-editor' ); /* translators: %s: post title */ $label = sprintf( __( 'Edit “%s” in the block editor', 'classic-editor' ), $title ); $edit_block = sprintf( '%s', esc_url( $url ), esc_attr( $label ), $text ); // Link to the classic editor. $url = add_query_arg( 'classic-editor', '', $edit_url ); $text = _x( 'Edit (classic editor)', 'Editor Name', 'classic-editor' ); /* translators: %s: post title */ $label = sprintf( __( 'Edit “%s” in the classic editor', 'classic-editor' ), $title ); $edit_classic = sprintf( '%s', esc_url( $url ), esc_attr( $label ), $text ); $edit_actions = array( 'classic-editor-block' => $edit_block, 'classic-editor-classic' => $edit_classic, ); // Insert the new Edit actions instead of the Edit action. $edit_offset = array_search( 'edit', array_keys( $actions ), true ); array_splice( $actions, $edit_offset, 1, $edit_actions ); return $actions; } /** * Show the editor that will be used in a "post state" in the Posts list table. */ public static function add_post_state( $post_states, $post ) { if ( get_post_status( $post ) === 'trash' ) { return $post_states; } $editors = self::get_enabled_editors_for_post( $post ); if ( ! $editors['classic_editor'] && ! $editors['block_editor'] ) { return $post_states; } elseif ( $editors['classic_editor'] && ! $editors['block_editor'] ) { // Forced to classic editor. $state = '' . _x( 'classic editor', 'Editor Name', 'classic-editor' ) . ''; } elseif ( ! $editors['classic_editor'] && $editors['block_editor'] ) { // Forced to block editor. $state = '' . _x( 'block editor', 'Editor Name', 'classic-editor' ) . ''; } else { $last_editor = get_post_meta( $post->ID, 'classic-editor-remember', true ); if ( $last_editor ) { $is_classic = ( $last_editor === 'classic-editor' ); } elseif ( ! empty( $post->post_content ) ) { $is_classic = ! self::has_blocks( $post->post_content ); } else { $settings = self::get_settings(); $is_classic = ( $settings['editor'] === 'classic' ); } $state = $is_classic ? _x( 'Classic editor', 'Editor Name', 'classic-editor' ) : _x( 'Block editor', 'Editor Name', 'classic-editor' ); } // Fix PHP 7+ warnings if another plugin returns unexpected type. $post_states = (array) $post_states; $post_states['classic-editor-plugin'] = $state; return $post_states; } public static function add_edit_php_inline_style() { ?> post_content; } } return false !== strpos( (string) $post, '