<?php

// +----------------------------------------------------------------------

// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]

// +----------------------------------------------------------------------

// | Copyright (c) 2006-2012 http://thinkphp.cn All rights reserved.

// +----------------------------------------------------------------------

// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )

// +----------------------------------------------------------------------

// | Author: liu21st <liu21st@gmail.com>

// +----------------------------------------------------------------------

// $Id: LocationTemplateBehavior.class.php 2702 2012-02-02 12:35:01Z liu21st $



/**

 +------------------------------------------------------------------------------

 * 系统行为扩展 自动定位模板文件

 +------------------------------------------------------------------------------

 */

class LocationTemplateBehavior extends Behavior {

    // 行为扩展的执行入口必须是run

    public function run(&$templateFile){

        // 自动定位模板文件

        if(!file_exists_case($templateFile))

            $templateFile   = $this->parseTemplateFile($templateFile);

    }



    /**

     +----------------------------------------------------------

     * 自动定位模板文件

     +----------------------------------------------------------

     * @access private

     +----------------------------------------------------------

     * @param string $templateFile 文件名

     +----------------------------------------------------------

     * @return string

     +----------------------------------------------------------

     * @throws ThinkExecption

     +----------------------------------------------------------

     */

    private function parseTemplateFile($templateFile) {

        if(''==$templateFile) {

            // 如果模板文件名为空 按照默认规则定位

            $templateFile = C('TEMPLATE_NAME');

        }elseif(false === strpos($templateFile,C('TMPL_TEMPLATE_SUFFIX'))){

            // 解析规则为 模板主题:模块:操作 不支持 跨项目和跨分组调用

            $path   =  explode(':',$templateFile);

            $action = array_pop($path);

            $module = !empty($path)?array_pop($path):MODULE_NAME;

            if(!empty($path)) {// 设置模板主题

                $path = dirname(THEME_PATH).'/'.array_pop($path).'/';

            }else{

                $path = THEME_PATH;

            }

            $depr = defined('GROUP_NAME')?C('TMPL_FILE_DEPR'):'/';

            $templateFile  =  $path.$module.$depr.$action.C('TMPL_TEMPLATE_SUFFIX');

        }

        if(!file_exists_case($templateFile))

            throw_exception(L('_TEMPLATE_NOT_EXIST_').'['.$templateFile.']');

        return $templateFile;

    }

}