As the sun rises and the forest mist clears, and the clouds return and the caves darken, these changes of light and shadow are the morning and evening in the mountains. Wildflowers bloom with their subtle fragrance, fine trees flourish with their dense shade, the wind and frost are pure and clean, and the water recedes to reveal the rocks—these are the four seasons in the mountains. Going out in the morning and returning in the evening, the scenery of the four seasons is different, and the joy is endless.至于负者歌于途,行者休于树,前者呼,后者应,伛偻提携,往来而不绝者,滁人游也。临溪而渔,溪深而鱼肥,酿泉为酒,泉香而酒洌,山肴野蔌,杂然而前陈者,太守宴也。宴酣之乐,非丝非竹,射者中,弈者胜,觥筹交错,起坐而喧哗者,众宾欢也。苍颜白发,颓然乎其间者,太守醉也。
<?php
/**
* @package Polylang
*/
use WP_Syntex\Polylang\Capabilities\Capabilities;
defined( 'ABSPATH' ) || exit;
/**
* Manages filters and actions related to the classic editor
*
* @since 2.4
*/
class PLL_Admin_Classic_Editor {
/**
* @var PLL_Model
*/
public $model;
/**
* @var PLL_Admin_Links
*/
public $links;
/**
* Current language (used to filter the content).
*
* @var PLL_Language|null
*/
public $curlang;
/**
* Preferred language to assign to new contents.
*
* @var PLL_Language|null
*/
public $pref_lang;
/**
* Constructor: setups filters and actions.
*
* @since 2.4
*
* @param object $polylang The Polylang object.
*/
public function __construct( &$polylang ) {
$this->model = &$polylang->model;
$this->links = &$polylang->links;
$this->curlang = &$polylang->curlang;
$this->pref_lang = &$polylang->pref_lang;
// Adds the Languages box in the 'Edit Post' and 'Edit Page' panels
add_action( 'add_meta_boxes', array( $this, 'add_meta_boxes' ) );
// Ajax response for changing the language in the post metabox
add_action( 'wp_ajax_post_lang_choice', array( $this, 'post_lang_choice' ) );
add_action( 'wp_ajax_pll_posts_not_translated', array( $this, 'ajax_posts_not_translated' ) );
// Filters the pages by language in the parent dropdown list in the page attributes metabox
add_filter( 'page_attributes_dropdown_pages_args', array( $this, 'page_attributes_dropdown_pages_args' ), 10, 2 );
// Notice
add_action( 'edit_form_top', array( $this, 'edit_form_top' ) );
}
/**
* Adds the Language box in the 'Edit Post' and 'Edit Page' panels ( as well as in custom post types panels )
*
* @since 0.1
*
* @param string $post_type Current post type
* @return void
*/
public function add_meta_boxes( $post_type ) {
if ( $this->model->is_translated_post_type( $post_type ) ) {
add_meta_box(
'ml_box',
__( 'Languages', 'polylang' ),
array( $this, 'post_language' ),
$post_type,
'side',
'high',
array(
'__back_compat_meta_box' => pll_use_block_editor_plugin(),
)
);
}
}
/**
* Displays the Languages metabox in the 'Edit Post' and 'Edit Page' panels
*
* @since 0.1
*
* @param WP_Post $post Current post object.
* @return void
*/
public function post_language( WP_Post $post ): void {
$post_type = $post->post_type;
$from_post_id = 0;
$lang = $this->model->post->get_language( $post->ID );
$new_post_data = $this->links->get_data_from_new_post_translation_request();
if ( ! empty( $new_post_data ) ) {
$from_post_id = $new_post_data['from_post']->ID;
$lang = $new_post_data['new_lang'];
}
if ( empty( $lang ) ) {
$lang = $this->pref_lang;
}
$dropdown = new PLL_Walker_Dropdown();
$id = ( 'attachment' === $post_type ) ? sprintf( 'attachments[%d][language]', (int) $post->ID ) : 'post_lang_choice';
$dropdown_html = $dropdown->walk(
$this->model->languages->filter( 'translator' )->get_list(),
-1,
array(
'name' => $id,
'class' => 'post_lang_choice tags-input',
'selected' => $lang ? $lang->slug : '',
'flag' => true,
)
);
wp_nonce_field( 'pll_language', '_pll_nonce' );
// NOTE: the class "tags-input" allows to include the field in the autosave $_POST ( see autosave.js )
printf(
'<p><strong>%1$s</strong></p>
<label class="screen-reader-text" for="%2$s">%1$s</label>
<div id="select-%3$s-language">%4$s</div>',
esc_html__( 'Language', 'polylang' ),
esc_attr( $id ),
( 'attachment' === $post_type ? 'media' : 'post' ),
$dropdown_html // phpcs:ignore WordPress.Security.EscapeOutput
);
/**
* Fires before displaying the list of translations in the Languages metabox for posts.
*
* @since 1.8
*
* @param string $post_type The post type.
*/
do_action( 'pll_before_post_translations', $post_type );
echo '<div id="post-translations" class="translations">';
if ( $lang ) {
if ( 'attachment' === $post_type ) {
include __DIR__ . '/view-translations-media.php';
} else {
include __DIR__ . '/view-translations-post.php';
}
}
echo '</div>' . "\n";
}
/**
* Ajax response for changing the language in the post metabox
*
* @since 0.2
*
* @return void
*/
public function post_lang_choice() {
check_ajax_referer( 'pll_language', '_pll_nonce' );
if ( ! isset( $_POST['post_id'], $_POST['lang'], $_POST['post_type'] ) ) {
wp_die( 'The request is missing the parameter "post_type", "lang" and/or "post_id".' );
}
global $post_ID; // Obliged to use the global variable for wp_popular_terms_checklist().
$post_ID = (int) $_POST['post_id'];
$post = get_post( $post_ID );
if ( ! $post instanceof WP_Post ) {
wp_die( esc_html( "Invalid post ID {$post_ID}." ) );
}
$lang_slug = sanitize_key( $_POST['lang'] );
$lang = $this->model->get_language( $lang_slug );
if ( empty( $lang ) ) {
wp_die( esc_html( "{$lang_slug} is not a valid language code." ) );
}
Capabilities::get_user()->can_translate_or_die( $lang );
$post_type_object = get_post_type_object( $post->post_type );
if ( empty( $post_type_object ) ) {
wp_die( esc_html( "{$post->post_type} is not a valid post type." ) );
}
if ( ! current_user_can( $post_type_object->cap->edit_post, $post->ID ) ) {
wp_die( 'You are not allowed to edit this post.' );
}
$this->model->post->set_language( $post->ID, $lang );
ob_start();
if ( 'attachment' === $post->post_type ) {
include __DIR__ . '/view-translations-media.php';
} else {
include __DIR__ . '/view-translations-post.php';
}
$x = new WP_Ajax_Response( array( 'what' => 'translations', 'data' => ob_get_contents() ) );
ob_end_clean();
// Categories
if ( isset( $_POST['taxonomies'] ) ) { // Not set for pages
$supplemental = array();
foreach ( array_map( 'sanitize_key', $_POST['taxonomies'] ) as $taxname ) {
$taxonomy = get_taxonomy( $taxname );
if ( ! empty( $taxonomy ) ) {
ob_start();
$popular_ids = wp_popular_terms_checklist( $taxonomy->name );
$supplemental['populars'] = ob_get_contents();
ob_end_clean();
ob_start();
// Use $post->ID to remember checked terms in case we come back to the original language
wp_terms_checklist( $post->ID, array( 'taxonomy' => $taxonomy->name, 'popular_cats' => $popular_ids ) );
$supplemental['all'] = ob_get_contents();
ob_end_clean();
$supplemental['dropdown'] = wp_dropdown_categories(
array(
'taxonomy' => $taxonomy->name,
'hide_empty' => 0,
'name' => 'new' . $taxonomy->name . '_parent',
'orderby' => 'name',
'hierarchical' => 1,
'show_option_none' => '— ' . $taxonomy->labels->parent_item . ' —',
'echo' => 0,
)
);
$x->Add( array( 'what' => 'taxonomy', 'data' => $taxonomy->name, 'supplemental' => $supplemental ) );
}
}
}
// Parent dropdown list ( only for hierarchical post types )
if ( in_array( $post->post_type, get_post_types( array( 'hierarchical' => true ) ) ) ) {
// Args and filter from 'page_attributes_meta_box' in wp-admin/includes/meta-boxes.php of WP 4.2.1
$dropdown_args = array(
'post_type' => $post->post_type,
'exclude_tree' => $post->ID,
'selected' => $post->post_parent,
'name' => 'parent_id',
'show_option_none' => __( '(no parent)', 'polylang' ),
'sort_column' => 'menu_order, post_title',
'echo' => 0,
);
/** This filter is documented in wp-admin/includes/meta-boxes.php */
$dropdown_args = (array) apply_filters( 'page_attributes_dropdown_pages_args', $dropdown_args, $post ); // Since WP 3.3.
$dropdown_args['echo'] = 0; // Make sure to not print it.
/** @var string $data */
$data = wp_dropdown_pages( $dropdown_args ); // phpcs:ignore WordPress.Security.EscapeOutput
$x->Add( array( 'what' => 'pages', 'data' => $data ) );
}
// Flag
$x->Add( array( 'what' => 'flag', 'data' => empty( $lang->flag ) ? esc_html( $lang->slug ) : $lang->flag ) );
// Sample permalink
$x->Add( array( 'what' => 'permalink', 'data' => get_sample_permalink_html( $post->ID ) ) );
$x->send();
}
/**
* Ajax response for input in translation autocomplete input box
*
* @since 1.5
*
* @return void
*/
public function ajax_posts_not_translated() {
check_ajax_referer( 'pll_language', '_pll_nonce' );
if ( ! isset( $_GET['post_type'], $_GET['post_language'], $_GET['translation_language'], $_GET['term'], $_GET['pll_post_id'] ) ) {
wp_die( 0 );
}
$post_type = sanitize_key( $_GET['post_type'] );
if ( ! post_type_exists( $post_type ) ) {
wp_die( 0 );
}
$term = wp_unslash( $_GET['term'] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput
$post_language = $this->model->get_language( sanitize_key( $_GET['post_language'] ) );
$translation_language = $this->model->get_language( sanitize_key( $_GET['translation_language'] ) );
$return = array();
$untranslated_posts = $this->model->post->get_untranslated( $post_type, $post_language, $translation_language, $term );
// format output
foreach ( $untranslated_posts as $post ) {
$return[] = array(
'id' => $post->ID,
'value' => $post->post_title,
'link' => $this->links->get_edit_post_link_html( $post ),
);
}
// Add current translation in list
if ( $post_id = $this->model->post->get_translation( (int) $_GET['pll_post_id'], $translation_language ) ) {
$post = get_post( $post_id );
if ( ! empty( $post ) ) {
array_unshift(
$return,
array(
'id' => $post_id,
'value' => $post->post_title,
'link' => $this->links->get_edit_post_link_html( $post ),
)
);
}
}
wp_die( wp_json_encode( $return ) );
}
/**
* Filters the pages by language in the parent dropdown list in the page attributes metabox.
*
* @since 0.6
*
* @param array $dropdown_args Arguments passed to wp_dropdown_pages().
* @param WP_Post $post The page being edited.
* @return array Modified arguments.
*/
public function page_attributes_dropdown_pages_args( $dropdown_args, $post ) {
$language = isset( $_POST['lang'] ) ? $this->model->get_language( sanitize_key( $_POST['lang'] ) ) : $this->model->post->get_language( $post->ID ); // phpcs:ignore WordPress.Security.NonceVerification
if ( empty( $language ) ) {
$language = $this->pref_lang;
}
if ( ! empty( $language ) ) {
$dropdown_args['lang'] = $language->slug;
}
return $dropdown_args;
}
/**
* Displays a notice if the user has not sufficient rights to overwrite synchronized taxonomies and metas.
*
* @since 2.6
*
* @param WP_Post $post the post currently being edited.
* @return void
*/
public function edit_form_top( $post ) {
if ( ! $this->model->post->current_user_can_synchronize( $post->ID ) ) {
?>
<div class="pll-notice notice notice-warning">
<p>
<?php
esc_html_e( 'Some taxonomies or metadata may be synchronized with existing translations that you are not allowed to modify.', 'polylang' );
echo ' ';
esc_html_e( 'If you attempt to modify them anyway, your changes will not be saved.', 'polylang' );
?>
</p>
</div>
<?php
}
}
}