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<?php
/**
* WPSEO Premium plugin file.
*
* @package WPSEO\Premium\Classes
*/
/**
* Enqueues a JavaScript plugin for YoastSEO.js that adds custom fields to the content that were defined in the titles
* and meta's section of the Yoast SEO settings when those fields are available.
*/
class WPSEO_Custom_Fields_Plugin implements WPSEO_WordPress_Integration {
/**
* Initialize the AJAX hooks.
*
* @codeCoverageIgnore Method relies on dependencies.
*
* @return void
*/
public function register_hooks() {
global $pagenow;
if ( ! WPSEO_Metabox::is_post_edit( $pagenow ) && ! WPSEO_Metabox::is_post_overview( $pagenow ) ) {
return;
}
add_action( 'admin_enqueue_scripts', [ $this, 'enqueue' ] );
}
/**
* Enqueues all the needed JS scripts.
*
* @codeCoverageIgnore Method relies on WordPress functions.
*
* @return void
*/
public function enqueue() {
wp_enqueue_script( 'wp-seo-premium-custom-fields-plugin' );
wp_localize_script( 'wp-seo-premium-custom-fields-plugin', 'YoastCustomFieldsPluginL10', $this->localize_script() );
}
/**
* Loads the custom fields translations.
*
* @return array The fields to localize.
*/
public function localize_script() {
return [
'custom_field_names' => $this->get_custom_field_names(),
];
}
/**
* Retrieve all custom field names set in SEO ->
*
* @return array The custom field names.
*/
protected function get_custom_field_names() {
$custom_field_names = [];
$post = $this->get_post();
if ( ! is_object( $post ) ) {
return $custom_field_names;
}
$options = $this->get_titles_from_options();
$target_option = 'page-analyse-extra-' . $post->post_type;
if ( array_key_exists( $target_option, $options ) ) {
$custom_field_names = explode( ',', $options[ $target_option ] );
}
return $custom_field_names;
}
/**
* Retrieves post data given a post ID or the global.
*
* @codeCoverageIgnore Method relies on dependencies.
*
* @return WP_Post|array|null Returns a post if found, otherwise returns an empty array.
*/
protected function get_post() {
$post = filter_input( INPUT_GET, 'post' );
if ( isset( $post ) && $post !== false ) {
$post_id = (int) WPSEO_Utils::validate_int( $post );
return get_post( $post_id );
}
if ( isset( $GLOBALS['post'] ) ) {
return $GLOBALS['post'];
}
return [];
}
/**
* Retrieves the value of the WPSEO_Titles option.
*
* @codeCoverageIgnore Method relies on the options.
*
* @return array The value from WPSEO_Titles option.
*/
protected function get_titles_from_options() {
$option_name = WPSEO_Options::get_option_instance( 'wpseo_titles' )->option_name;
return get_option( $option_name, [] );
}
}