Scan for controllers marked as a template

needs $theme_dir to be defined
needs templates to have the Custom Page Template syntax

<?php
/*
Template Name: My Custom Page
*/

##

$templates = $this->get_page_templates();

##

      function get_page_templates() {

                $page_templates = array();

                $files = (array) glob(trailingslashit($theme_dir)."*.php",GLOB_BRACE);

                foreach ( $files as $full_path ) {
                        if ( ! preg_match( '|Template Name:(.*)$|mi', file_get_contents( $full_path ), $header ) )
                                continue;

                        $file_chunks = explode(trailingslashit($theme_dir),$full_path);
                        $array_k = $file_chunks[1];

                        $page_templates[ $array_k ] = _cleanup_header_comment( $header[1] );
                }

                return $page_templates;

        }