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<?php

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/**

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* Classic Editor

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* Plugin Name: Classic Editor

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* Plugin URI: https://wordpress.org/plugins/classic-editor/

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* 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.

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* Version: 1.6.3

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* Author: WordPress Contributors

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* Author URI: https://github.com/WordPress/classic-editor/

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* License: GPLv2 or later

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* License URI: http://www.gnu.org/licenses/old-licenses/gpl-2.0.html

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* Text Domain: classic-editor

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* Domain Path: /languages

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* Requires at least: 4.9

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* Requires PHP: 5.2.4

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* This program is free software; you can redistribute it and/or modify it under the terms of the GNU

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* General Public License version 2, as published by the Free Software Foundation. You may NOT assume

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* that you can use any other version of the GPL.

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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without

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* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

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if ( ! defined( 'ABSPATH' ) ) {

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die( 'Invalid request.' );

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}

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if ( ! class_exists( 'Classic_Editor' ) ) :

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class Classic_Editor {

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private static $settings;

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private static $supported_post_types = array();

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private function __construct() {}

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public static function init_actions() {

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$block_editor = has_action( 'enqueue_block_assets' );

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$gutenberg = function_exists( 'gutenberg_register_scripts_and_styles' );

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register_activation_hook( __FILE__, array( __CLASS__, 'activate' ) );

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$settings = self::get_settings();

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if ( is_multisite() ) {

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add_action( 'wpmu_options', array( __CLASS__, 'network_settings' ) );

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add_action( 'update_wpmu_options', array( __CLASS__, 'save_network_settings' ) );

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}

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if ( ! $settings['hide-settings-ui'] ) {

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// Add a link to the plugin's settings and/or network admin settings in the plugins list table.

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add_filter( 'plugin_action_links', array( __CLASS__, 'add_settings_link' ), 10, 2 );

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add_filter( 'network_admin_plugin_action_links', array( __CLASS__, 'add_settings_link' ), 10, 2 );

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add_action( 'admin_init', array( __CLASS__, 'register_settings' ) );

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if ( $settings['allow-users'] ) {

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// User settings.

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add_action( 'personal_options_update', array( __CLASS__, 'save_user_settings' ) );

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add_action( 'profile_personal_options', array( __CLASS__, 'user_settings' ) );

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}

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}

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// Always remove the "Try Gutenberg" dashboard widget. See https://core.trac.wordpress.org/ticket/44635.

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remove_action( 'try_gutenberg_panel', 'wp_try_gutenberg_panel' );

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if ( ! $block_editor && ! $gutenberg ) {

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return;

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}

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if ( $settings['allow-users'] ) {

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// Also used in Gutenberg.

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add_filter( 'use_block_editor_for_post', array( __CLASS__, 'choose_editor' ), 100, 2 );

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if ( $gutenberg ) {

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// Support older Gutenberg versions.

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add_filter( 'gutenberg_can_edit_post', array( __CLASS__, 'choose_editor' ), 100, 2 );

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if ( $settings['editor'] === 'classic' ) {

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self::remove_gutenberg_hooks( 'some' );

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}

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}

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add_filter( 'get_edit_post_link', array( __CLASS__, 'get_edit_post_link' ) );

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add_filter( 'redirect_post_location', array( __CLASS__, 'redirect_location' ) );

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add_action( 'edit_form_top', array( __CLASS__, 'add_redirect_helper' ) );

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add_action( 'admin_head-edit.php', array( __CLASS__, 'add_edit_php_inline_style' ) );

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add_action( 'edit_form_top', array( __CLASS__, 'remember_classic_editor' ) );

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if ( version_compare( $GLOBALS['wp_version'], '5.8', '>=' ) ) {

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add_filter( 'block_editor_settings_all', array( __CLASS__, 'remember_block_editor' ), 10, 2 );

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} else {

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add_filter( 'block_editor_settings', array( __CLASS__, 'remember_block_editor' ), 10, 2 );

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}

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// Post state (edit.php)

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add_filter( 'display_post_states', array( __CLASS__, 'add_post_state' ), 10, 2 );

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// Row actions (edit.php)

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add_filter( 'page_row_actions', array( __CLASS__, 'add_edit_links' ), 15, 2 );

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add_filter( 'post_row_actions', array( __CLASS__, 'add_edit_links' ), 15, 2 );

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// Switch editors while editing a post

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add_action( 'add_meta_boxes', array( __CLASS__, 'add_meta_box' ), 10, 2 );

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add_action( 'enqueue_block_editor_assets', array( __CLASS__, 'enqueue_block_editor_scripts' ) );

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} else {

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if ( $settings['editor'] === 'classic' ) {

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// Also used in Gutenberg.

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// Consider disabling other Block Editor functionality.

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add_filter( 'use_block_editor_for_post_type', '__return_false', 100 );

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if ( $gutenberg ) {

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// Support older Gutenberg versions.

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add_filter( 'gutenberg_can_edit_post_type', '__return_false', 100 );

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self::remove_gutenberg_hooks();

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}

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} else {

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// $settings['editor'] === 'block', nothing to do :)

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return;

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}

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}

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if ( $block_editor ) {

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// Move the Privacy Page notice back under the title.

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add_action( 'admin_init', array( __CLASS__, 'on_admin_init' ) );

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}

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if ( $gutenberg ) {

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// These are handled by this plugin. All are older, not used in 5.3+.

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remove_action( 'admin_init', 'gutenberg_add_edit_link_filters' );

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remove_action( 'admin_print_scripts-edit.php', 'gutenberg_replace_default_add_new_button' );

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remove_filter( 'redirect_post_location', 'gutenberg_redirect_to_classic_editor_when_saving_posts' );

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remove_filter( 'display_post_states', 'gutenberg_add_gutenberg_post_state' );

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remove_action( 'edit_form_top', 'gutenberg_remember_classic_editor_when_saving_posts' );

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}

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}

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public static function remove_gutenberg_hooks( $remove = 'all' ) {

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remove_action( 'admin_menu', 'gutenberg_menu' );

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remove_action( 'admin_init', 'gutenberg_redirect_demo' );

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if ( $remove !== 'all' ) {

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return;

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}

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// Gutenberg 5.3+

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remove_action( 'wp_enqueue_scripts', 'gutenberg_register_scripts_and_styles' );

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remove_action( 'admin_enqueue_scripts', 'gutenberg_register_scripts_and_styles' );

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remove_action( 'admin_notices', 'gutenberg_wordpress_version_notice' );

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remove_action( 'rest_api_init', 'gutenberg_register_rest_widget_updater_routes' );

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remove_action( 'admin_print_styles', 'gutenberg_block_editor_admin_print_styles' );

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remove_action( 'admin_print_scripts', 'gutenberg_block_editor_admin_print_scripts' );

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remove_action( 'admin_print_footer_scripts', 'gutenberg_block_editor_admin_print_footer_scripts' );

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remove_action( 'admin_footer', 'gutenberg_block_editor_admin_footer' );

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remove_action( 'admin_enqueue_scripts', 'gutenberg_widgets_init' );

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remove_action( 'admin_notices', 'gutenberg_build_files_notice' );

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remove_filter( 'load_script_translation_file', 'gutenberg_override_translation_file' );

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remove_filter( 'block_editor_settings', 'gutenberg_extend_block_editor_styles' );

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remove_filter( 'default_content', 'gutenberg_default_demo_content' );

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remove_filter( 'default_title', 'gutenberg_default_demo_title' );

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remove_filter( 'block_editor_settings', 'gutenberg_legacy_widget_settings' );

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remove_filter( 'rest_request_after_callbacks', 'gutenberg_filter_oembed_result' );

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// Previously used, compat for older Gutenberg versions.

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remove_filter( 'wp_refresh_nonces', 'gutenberg_add_rest_nonce_to_heartbeat_response_headers' );

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remove_filter( 'get_edit_post_link', 'gutenberg_revisions_link_to_editor' );

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remove_filter( 'wp_prepare_revision_for_js', 'gutenberg_revisions_restore' );

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remove_action( 'rest_api_init', 'gutenberg_register_rest_routes' );

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remove_action( 'rest_api_init', 'gutenberg_add_taxonomy_visibility_field' );

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remove_filter( 'registered_post_type', 'gutenberg_register_post_prepare_functions' );

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remove_action( 'do_meta_boxes', 'gutenberg_meta_box_save' );

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remove_action( 'submitpost_box', 'gutenberg_intercept_meta_box_render' );

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remove_action( 'submitpage_box', 'gutenberg_intercept_meta_box_render' );

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remove_action( 'edit_page_form', 'gutenberg_intercept_meta_box_render' );

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remove_action( 'edit_form_advanced', 'gutenberg_intercept_meta_box_render' );

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remove_filter( 'redirect_post_location', 'gutenberg_meta_box_save_redirect' );

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remove_filter( 'filter_gutenberg_meta_boxes', 'gutenberg_filter_meta_boxes' );

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remove_filter( 'body_class', 'gutenberg_add_responsive_body_class' );

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remove_filter( 'admin_url', 'gutenberg_modify_add_new_button_url' ); // old

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remove_action( 'admin_enqueue_scripts', 'gutenberg_check_if_classic_needs_warning_about_blocks' );

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remove_filter( 'register_post_type_args', 'gutenberg_filter_post_type_labels' );

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// phpcs:disable Squiz.PHP.CommentedOutCode.Found

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// Keep

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// remove_filter( 'wp_kses_allowed_html', 'gutenberg_kses_allowedtags', 10, 2 ); // not needed in 5.0

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// remove_filter( 'bulk_actions-edit-wp_block', 'gutenberg_block_bulk_actions' );

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// remove_filter( 'wp_insert_post_data', 'gutenberg_remove_wpcom_markdown_support' );

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// remove_filter( 'the_content', 'do_blocks', 9 );

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// remove_action( 'init', 'gutenberg_register_post_types' );

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// Continue to manage wpautop for posts that were edited in Gutenberg.

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// remove_filter( 'wp_editor_settings', 'gutenberg_disable_editor_settings_wpautop' );

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// remove_filter( 'the_content', 'gutenberg_wpautop', 8 );

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// phpcs:enable Squiz.PHP.CommentedOutCode.Found

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}

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private static function get_settings( $refresh = 'no' ) {

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/**

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* Can be used to override the plugin's settings. Always hides the settings UI when used (as users cannot change the settings).

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* Has to return an associative array with two keys.

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* The defaults are:

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* 'editor' => 'classic', // Accepted values: 'classic', 'block'.

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* 'allow-users' => false,

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* @param boolean To override the settings return an array with the above keys.

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$settings = apply_filters( 'classic_editor_plugin_settings', false );

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if ( is_array( $settings ) ) {

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return array(

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'editor' => ( isset( $settings['editor'] ) && $settings['editor'] === 'block' ) ? 'block' : 'classic',

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'allow-users' => ! empty( $settings['allow-users'] ),

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'hide-settings-ui' => true,

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);

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}

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if ( ! empty( self::$settings ) && $refresh === 'no' ) {

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return self::$settings;

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}

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if ( is_multisite() ) {

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$defaults = array(

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'editor' => get_network_option( null, 'classic-editor-replace' ) === 'block' ? 'block' : 'classic',

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'allow-users' => false,

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);

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/**

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* Filters the default network options.

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* @param array $defaults The default options array. See `classic_editor_plugin_settings` for supported keys and values.

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$defaults = apply_filters( 'classic_editor_network_default_settings', $defaults );

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if ( get_network_option( null, 'classic-editor-allow-sites' ) !== 'allow' ) {

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// Per-site settings are disabled. Return default network options nad hide the settings UI.

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$defaults['hide-settings-ui'] = true;

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return $defaults;

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}

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// Override with the site options.

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$editor_option = get_option( 'classic-editor-replace' );

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$allow_users_option = get_option( 'classic-editor-allow-users' );

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if ( $editor_option ) {

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$defaults['editor'] = $editor_option;

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}

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if ( $allow_users_option ) {

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$defaults['allow-users'] = ( $allow_users_option === 'allow' );

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}

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$editor = ( isset( $defaults['editor'] ) && $defaults['editor'] === 'block' ) ? 'block' : 'classic';

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$allow_users = ! empty( $defaults['allow-users'] );

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} else {

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$allow_users = ( get_option( 'classic-editor-allow-users' ) === 'allow' );

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$option = get_option( 'classic-editor-replace' );

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// Normalize old options.

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if ( $option === 'block' || $option === 'no-replace' ) {

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$editor = 'block';

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} else {

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// empty( $option ) || $option === 'classic' || $option === 'replace'

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$editor = 'classic';

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}

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}

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// Override the defaults with the user options.

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if ( ( ! isset( $GLOBALS['pagenow'] ) || $GLOBALS['pagenow'] !== 'options-writing.php' ) && $allow_users ) {

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$user_options = get_user_option( 'classic-editor-settings' );

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if ( $user_options === 'block' || $user_options === 'classic' ) {

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$editor = $user_options;

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}

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}

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self::$settings = array(

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'editor' => $editor,

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'hide-settings-ui' => false,

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'allow-users' => $allow_users,

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);

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return self::$settings;

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}

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private static function is_classic( $post_id = 0 ) {

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if ( ! $post_id ) {

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$post_id = self::get_edited_post_id();

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}

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if ( $post_id ) {

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$settings = self::get_settings();

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if ( $settings['allow-users'] && ! isset( $_GET['classic-editor__forget'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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$which = get_post_meta( $post_id, 'classic-editor-remember', true );

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if ( $which ) {

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// The editor choice will be "remembered" when the post is opened in either the classic or the block editor.

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if ( 'classic-editor' === $which ) {

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return true;

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} elseif ( 'block-editor' === $which ) {

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return false;

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}

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}

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return ( ! self::has_blocks( $post_id ) );

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}

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}

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if ( isset( $_GET['classic-editor'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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return true;

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}

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return false;

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}

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/**

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* Get the edited post ID (early) when loading the Edit Post screen.

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private static function get_edited_post_id() {

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// phpcs:disable WordPress.Security.NonceVerification.Recommended

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if (

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! empty( $_GET['post'] ) &&

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! empty( $_GET['action'] ) &&

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$_GET['action'] === 'edit' &&

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! empty( $GLOBALS['pagenow'] ) &&

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$GLOBALS['pagenow'] === 'post.php'

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) {

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return (int) $_GET['post']; // post_ID

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}

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// phpcs:enable WordPress.Security.NonceVerification.Recommended

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return 0;

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}

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public static function register_settings() {

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// Add an option to Settings -> Writing

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register_setting( 'writing', 'classic-editor-replace', array(

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'sanitize_callback' => array( __CLASS__, 'validate_option_editor' ),

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) );

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register_setting( 'writing', 'classic-editor-allow-users', array(

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'sanitize_callback' => array( __CLASS__, 'validate_option_allow_users' ),

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) );

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$allowed_options = array(

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'writing' => array(

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'classic-editor-replace',

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'classic-editor-allow-users'

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);

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if ( function_exists( 'add_allowed_options' ) ) {

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add_allowed_options( $allowed_options );

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} else {

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add_option_whitelist( $allowed_options );

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}

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$heading_1 = __( 'Default editor for all users', 'classic-editor' );

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$heading_2 = __( 'Allow users to switch editors', 'classic-editor' );

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add_settings_field( 'classic-editor-1', $heading_1, array( __CLASS__, 'settings_1' ), 'writing' );

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add_settings_field( 'classic-editor-2', $heading_2, array( __CLASS__, 'settings_2' ), 'writing' );

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}

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public static function save_user_settings( $user_id ) {

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if (

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isset( $_POST['classic-editor-user-settings'] ) &&

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isset( $_POST['classic-editor-replace'] ) &&

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wp_verify_nonce( $_POST['classic-editor-user-settings'], 'allow-user-settings' ) // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

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) {

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$user_id = (int) $user_id;

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if ( $user_id !== get_current_user_id() && ! current_user_can( 'edit_user', $user_id ) ) {

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return;

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}

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$editor = self::validate_option_editor( $_POST['classic-editor-replace'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized

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update_user_option( $user_id, 'classic-editor-settings', $editor );

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}

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}

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/**

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* Validate

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public static function validate_option_editor( $value ) {

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if ( $value === 'block' ) {

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return 'block';

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}

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return 'classic';

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}

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public static function validate_option_allow_users( $value ) {

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if ( $value === 'allow' ) {

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return 'allow';

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}

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return 'disallow';

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}

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public static function settings_1() {

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$settings = self::get_settings( 'refresh' );

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<p>

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</p>

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<p>

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</p>

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</div>

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jQuery( 'document' ).ready( function( $ ) {

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if ( window.location.hash === '#classic-editor-options' ) {

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$( '.classic-editor-options' ).closest( 'td' ).addClass( 'highlight' );

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}

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} );

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</script>

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<?php

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}

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public static function settings_2() {

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$settings = self::get_settings( 'refresh' );

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<p>

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</p>

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<p>

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</p>

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</div>

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<?php

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}

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/**

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* Shown on the Profile page when allowed by admin.

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public static function user_settings() {

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global $user_can_edit;

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$settings = self::get_settings( 'update' );

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if (

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! defined( 'IS_PROFILE_PAGE' ) ||

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! IS_PROFILE_PAGE ||

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! $user_can_edit ||

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! $settings['allow-users']

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) {

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return;

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}

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[461] Fix | Delete

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<td>

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<?php wp_nonce_field( 'allow-user-settings', 'classic-editor-user-settings' ); ?>

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<?php self::settings_1(); ?>

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</td>

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</tr>

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</table>

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<?php

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}

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public static function network_settings() {

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$editor = get_network_option( null, 'classic-editor-replace' );

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$is_checked = ( get_network_option( null, 'classic-editor-allow-sites' ) === 'allow' );

[477] Fix | Delete

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[479] Fix | Delete

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<?php wp_nonce_field( 'allow-site-admin-settings', 'classic-editor-network-settings' ); ?>

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<tr>

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<td>

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<p>

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</p>

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<p>

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[491] Fix | Delete

[492] Fix | Delete

</p>

[493] Fix | Delete

</td>

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</tr>

[495] Fix | Delete

<tr>

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[497] Fix | Delete

<td>

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[499] Fix | Delete