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<?php /** * WPSEO plugin file. * * @package WPSEO\Admin\Metabox */ /** * Handles all things with the metabox in combination with the WordPress editor. */ class WPSEO_Metabox_Editor { /** * Registers hooks to WordPress. * * @codeCoverageIgnore */ public function register_hooks() { add_filter( 'mce_css', [ $this, 'add_css_inside_editor' ] ); add_filter( 'tiny_mce_before_init', [ $this, 'add_custom_element' ] ); } /** * Adds our inside the editor CSS file to the list of CSS files to be loaded inside the editor. * * @param string $css_files The CSS files that WordPress wants to load inside the editor. * @return string The CSS files WordPress wants to load and our CSS file. */ public function add_css_inside_editor( $css_files ) { $asset_manager = new WPSEO_Admin_Asset_Manager(); $styles = $asset_manager->special_styles(); $inside_editor = $styles['inside-editor']; $asset_location = new WPSEO_Admin_Asset_SEO_Location( WPSEO_FILE ); $url = $asset_location->get_url( $inside_editor, WPSEO_Admin_Asset::TYPE_CSS ); if ( $css_files === '' ) { $css_files = $url; } else { $css_files .= ',' . $url; } return $css_files; } /** * Adds a custom element to the tinyMCE editor that we need for marking the content. * * @param array $tinymce_config The tinyMCE config as configured by WordPress. * * @return array The new tinyMCE config with our added custom elements. */ public function add_custom_element( $tinymce_config ) { if ( ! empty( $tinymce_config['custom_elements'] ) ) { $custom_elements = $tinymce_config['custom_elements']; $custom_elements .= ',~yoastmark'; } else { $custom_elements = '~yoastmark'; } $tinymce_config['custom_elements'] = $custom_elements; return $tinymce_config; } }