<?php

/**

 * Smarty Resource Extension

 *

 * @package    Smarty

 * @subpackage TemplateResources

 * @author     Uwe Tews

 */

/**

 * Smarty Resource Extension

 * Default template and config file handling

 *

 * @package    Smarty

 * @subpackage TemplateResources

 */

class Smarty_Internal_Extension_DefaultTemplateHandler {

    /**

     * get default content from template of config resource handler

     *

     * @param Smarty_Internal_Template $_template

     * @param Smarty_Internal_Template_Source $source

     * @param  Smarty_Resource $resObj

     */

    static function _getDefault(Smarty_Internal_Template $_template, &$source, &$resObj) {

        if ($source->isConfig) {

            $default_handler = $_template->smarty->default_config_handler_func;

        } else {

            $default_handler = $_template->smarty->default_template_handler_func;

        }

        $_content = $_timestamp = null;

        $_return = call_user_func_array($default_handler,

            array($source->type, $source->name, &$_content, &$_timestamp, $source->smarty));

        if (is_string($_return)) {

            $source->exists = is_file($_return);

            if ($source->exists) {

                $source->timestamp = filemtime($_return);

            }

            $source->filepath = $_return;

        } elseif ($_return === true) {

            $source->content = $_content;

            $source->timestamp = $_timestamp;

            $source->exists = true;

            $source->recompiled = true;

            $source->filepath = false;

        }

    }

    /**

     * register template default handler

     *

     * @param Smarty $smarty

     * @param mixed $callback

     *

     * @throws SmartyException

     */

    static function registerDefaultTemplateHandler(Smarty $smarty, $callback) {

        if (is_callable($callback)) {

            $smarty->default_template_handler_func = $callback;

        } else {

            throw new SmartyException("Default template handler not callable");

        }

    }

    /**

     * register config default handler

     *

     * @param Smarty $smarty

     * @param mixed $callback

     *

     * @throws SmartyException

     */

    static function registerDefaultConfigHandler(Smarty $smarty, $callback) {

        if (is_callable($callback)) {

            $smarty->default_config_handler_func = $callback;

        } else {

            throw new SmartyException("Default config handler not callable");

        }

    }

}