_WP_Editors::wp_mce_translation( string $mce_locale = '', bool $json_only = false ): string

Source

public static function wp_mce_translation( $mce_locale = '', $json_only = false ) {
	if ( ! $mce_locale ) {
		$mce_locale = self::get_mce_locale();
	}

	$mce_translation = self::get_translation();

	foreach ( $mce_translation as $name => $value ) {
		if ( is_array( $value ) ) {
			$mce_translation[ $name ] = $value[0];
		}
	}

	/**
	 * Filters translated strings prepared for TinyMCE.
	 *
	 * @since 3.9.0
	 *
	 * @param array  $mce_translation Key/value pairs of strings.
	 * @param string $mce_locale      Locale.
	 */
	$mce_translation = apply_filters( 'wp_mce_translation', $mce_translation, $mce_locale );

	foreach ( $mce_translation as $key => $value ) {
		// Remove strings that are not translated.
		if ( $key === $value ) {
			unset( $mce_translation[ $key ] );
			continue;
		}

		if ( str_contains( $value, '&' ) ) {
			$mce_translation[ $key ] = html_entity_decode( $value, ENT_QUOTES, 'UTF-8' );
		}
	}

	// Set direction.
	if ( is_rtl() ) {
		$mce_translation['_dir'] = 'rtl';
	}

	if ( $json_only ) {
		return wp_json_encode( $mce_translation );
	}

	$baseurl = self::get_baseurl();

	return "tinymce.addI18n( '$mce_locale', " . wp_json_encode( $mce_translation ) . ");\n" .
		"tinymce.ScriptLoader.markDone( '$baseurl/langs/$mce_locale.js' );\n";
}

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