private static function get_language_plugin_list( $path ) {
		$languages = [];

		// Try to open the given directory.
		$handle = \opendir( $path );
		if ( false === $handle ) {
			// Abort.
			return $languages; // @codeCoverageIgnore
		}

		// Read all files in directory.
		$file = \readdir( $handle );
		while ( $file ) {
			// We only want the JSON files.
			if ( '.json' === \substr( $file, -5 ) ) {
				$file_content = \file_get_contents( $path . $file );
				if ( \preg_match( '/"language"\s*:\s*((".+")|(\'.+\'))\s*,/', $file_content, $matches ) ) {
					$language_name = \substr( $matches[1], 1, -1 );
					$language_code = \substr( $file, 0, -5 );

					$languages[ $language_code ] = $language_name;
				}
			}

			// Read next file.
			$file = \readdir( $handle );
		}
		\closedir( $handle );

		// Sort translated language names according to current locale.
		\asort( $languages );

		return $languages;
	}