View.class.php | searchcode

/trunk/Tpblog/ThinkPHP/Lib/Think/Core/View.class.php

http://tpblog.googlecode.com/
PHP | 486 lines | 258 code | 21 blank | 207 comment | 46 complexity | 66e4ac0672520c91f7c23227176f4b69 MD5 | raw file

<?php

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

// | ThinkPHP

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

// | Copyright (c) 2008 http://thinkphp.cn All rights reserved.

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

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

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

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

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

// $Id$



/**

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

 * ThinkPHP ????

 * ?????????

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

 * @category   Think

 * @package  Think

 * @subpackage  Core

 * @author liu21st <liu21st@gmail.com>

 * @version  $Id$

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

 */

class View extends Base

{

    /**

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

     * ????????????????????????

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

     * @var array

     * @access protected

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

     */

    protected $tVar        =  array();



    protected $trace       = array();



    // ?????????

    protected $type        =   '';



   /**

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

     * ????????

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

     * @access public

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

     * @return Template

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

     */

    static function getInstance() {

        return get_instance_of(__CLASS__);

    }



    // ????

    public function __construct($type='') {

        if(!empty($type)) {

            $this->type =   $type;

        }else{

            $this->type =   strtoupper(C('TMPL_ENGINE_TYPE'));

        }

    }



    /**

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

     * ??????

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

     * @access public

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

     * @param mixed $name

     * @param mixed $value

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

     */

    public function assign($name,$value=''){

        if(is_array($name)) {

            $this->tVar   =  array_merge($this->tVar,$name);

        }elseif(is_object($name)){

            foreach($name as $key =>$val)

            {

                $this->tVar[$key] = $val;

            }

        }else {

            $this->tVar[$name] = $value;

        }

    }



    /**

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

     * Trace????

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

     * @access public

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

     * @param mixed $name

     * @param mixed $value

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

     */

    public function trace($title,$value='') {

        if(is_array($title)) {

            $this->trace   =  array_merge($this->trace,$title);

        }else {

            $this->trace[$title] = $value;

        }

    }



    /**

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

     * ????????

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

     * @access public

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

     * @param string $name

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

     * @return mixed

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

     * @throws ThinkExecption

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

     */

    public function get($name){

        if(isset($this->tVar[$name])) {

            return $this->tVar[$name];

        }else {

            return false;

        }

    }



    public function __set($name,$value) {

        $this->assign($name,$value);

    }



    public function __get($name) {

        return $this->get($name);

    }



    /**

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

     * ????????? ????????

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

     * @access public

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

     * @param string $templateFile ????? ???????

     * @param string $charset ???????

     * @param string $contentType ????

     * @param string $varPrefix ??????

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

     * @return mixed

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

     * @throws ThinkExecption

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

     */

    public function display($templateFile='',$charset='',$contentType='text/html',$varPrefix='')

    {

        $this->fetch($templateFile,$charset,$contentType,$varPrefix,true);

    }



    /**

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

     * ????????????????????????

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

     * @access protected

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

     * @param string $startTime ????

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

     * @return string

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

     * @throws ThinkExecption

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

     */

    protected function showTime($startTime) {

        if(C('SHOW_RUN_TIME')) {

            // ??????

            $endTime = microtime(TRUE);

            $total_run_time =   number_format(($endTime - $GLOBALS['_beginTime']), 3);

            $showTime   =   'Process: '.$total_run_time.'s ';

            if(C('SHOW_ADV_TIME')) {

                // ????????

                $_load_time =   number_format(($GLOBALS['_loadTime'] -$GLOBALS['_beginTime'] ), 3);

                $_init_time =   number_format(($GLOBALS['_initTime'] -$GLOBALS['_loadTime'] ), 3);

                $_exec_time =   number_format(($startTime  -$GLOBALS['_initTime'] ), 3);

                $_parse_time    =   number_format(($endTime - $startTime), 3);

                $showTime .= '( Load:'.$_load_time.'s Init:'.$_init_time.'s Exec:'.$_exec_time.'s Template:'.$_parse_time.'s )';

            }

            if(C('SHOW_DB_TIMES') && class_exists('Db',false) ) {

                // ?????????

                $db =   Db::getInstance();

                $showTime .= ' | DB :'.$db->Q().' queries '.$db->W().' writes ';

            }

            if(C('SHOW_CACHE_TIMES') && class_exists('Cache',false)) {

                // ?????????

                $cache  =   Cache::getInstance();

                $showTime .= ' | Cache :'.$cache->Q().' gets '.$cache->W().' writes ';

            }

            if(MEMORY_LIMIT_ON && C('SHOW_USE_MEM')) {

                // ??????

                $startMem    =  array_sum(explode(' ', $GLOBALS['_startUseMems']));

                $endMem     =  array_sum(explode(' ', memory_get_usage()));

                $showTime .= ' | UseMem:'. number_format(($endMem - $startMem)/1024).' kb';

            }

            return $showTime;

        }

    }



    /**

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

     * ??????

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

     * @access public

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

     * @param string $layout ??????????

     * @param string $charset ????

     * @param string $contentType ????

     * @param string $varPrefix ??????

     * @param string $display ??????

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

     * @return void

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

     */

    public function layout($layoutFile='',$charset='',$contentType='text/html',$varPrefix='',$display=true)

    {

        $startTime = microtime(TRUE);

        if(empty($layoutFile)) {

            // ???????????????

            $layoutFile  =  C('DEFAULT_LAYOUT');

        }

        if(false === strpos($layoutFile,':')) {

            // ????layout???????

            // ?????????? ?? Public:index

            $layoutFile  =  'Layout:'.$layoutFile;

        }

        // ????????

        $content    =   $this->fetch($layoutFile,$charset,$contentType,$varPrefix);

        // ?????????

        $find = preg_match_all('/<!-- layout::(.+?)::(.+?) -->/is',$content,$matches);

        if($find) {

            for ($i=0; $i< $find; $i++) {

                // ???????????????

                if(0===strpos($matches[1][$i],'$')){

                    // ????

                    $matches[1][$i]  =  $this->get(substr($matches[1][$i],1));

                }

                if(0 != $matches[2][$i] ) {

                    // ???????

                    // ??????????

                    $guid =  md5($matches[1][$i]);

                    $cache  =  S($guid);

                    if($cache) {

                        $layoutContent = $cache;

                    }else{

                        $layoutContent = $this->fetch($matches[1][$i],$charset,$contentType,$varPrefix);

                        S($guid,$layoutContent,$matches[2][$i]);

                    }

                }else{

                    $layoutContent = $this->fetch($matches[1][$i],$charset,$contentType,$varPrefix);

                }

                $content    =   str_replace($matches[0][$i],$layoutContent,$content);

            }

        }

        if($display) {

            $showTime   =   $this->showTime($startTime);

            echo $content;

            if(C('SHOW_RUN_TIME')) {

                echo '<div  id="think_run_time" class="think_run_time">'.$showTime.'</div>';

            }

            $this->showTrace($showTime,$charset);

            return null;

        }else{

            return $content;

        }

    }



    /**

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

     * ??????????

     * ???????????

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

     * @access public

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

     * @param string $tmplTemplateFile  ?????

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

     * @return boolen

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

     * @throws ThinkExecption

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

     */

    protected function checkCache($tmplTemplateFile)

    {

        $tmplCacheFile = CACHE_PATH.md5($tmplTemplateFile).C('CACHFILE_SUFFIX');

        if(!file_exists($tmplCacheFile)){

            return false;

        }

        elseif (!C('TMPL_CACHE_ON')){

            return false;

        }elseif (filemtime($tmplTemplateFile) > filemtime($tmplCacheFile)) {

            // ????????????????

            return false;

        } elseif (C('TMPL_CACHE_TIME') != -1 && time() > filemtime($tmplCacheFile)+C('TMPL_CACHE_TIME')) {

            // ????????

            return false;

        }

        //????

        return true;

    }



    /**

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

     * ?????????

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

     * @access public

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

     * @param string $templateFile ????? ???????

     * @param string $charset ???????

     * @param string $contentType ????

     * @param string $varPrefix ??????

     * @param integer $mode 0 ?? 1 ?? 2 ??

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

     * @throws ThinkExecption

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

     */

    public function fetch($templateFile='',$charset='',$contentType='text/html',$varPrefix='',$display=false)

    {

        $startTime = microtime(TRUE);

        if(null===$templateFile) {

            // ??null?????????????????

            return ;

        }

        if('layout::'==substr($templateFile,0,8)) {

            $this->layout(substr($templateFile,8));

            return ;

        }

        if(empty($charset)) {

            $charset = C('OUTPUT_CHARSET');

        }

        // ??????

        header("Content-Type:".$contentType."; charset=".$charset);

        header("Cache-control: private");  //??????



        // ??????

        ini_set('output_buffering',4096);

        $zlibCompress   =  ini_get('zlib.output_compression');

        if(empty($zlibCompress) && function_exists('ini_set')) {

            ini_set( 'zlib.output_compression', 1 );

        }

        $pluginOn   =  C('THINK_PLUGIN_ON');

        if($pluginOn) {

            // ???????

            apply_filter('ob_init');

        }

        //????

        ob_start();

        ob_implicit_flush(0);

        if($pluginOn) {

            // ??????????

            apply_filter('ob_start');

            // ???????

            $templateFile = apply_filter('template_file',$templateFile);

        }



        if(''==$templateFile) {

            // ????????? ????????

            $templateFile = C('TMPL_FILE_NAME');

        }elseif(strpos($templateFile,'@')){

            // ??????????? ???????? ?? blue@User:add

            $templateFile   =   TMPL_PATH.str_replace(array('@',':'),'/',$templateFile).C('TEMPLATE_SUFFIX');

        }elseif(strpos($templateFile,':')){

            // ???????????

            $templateFile   =   TEMPLATE_PATH.'/'.str_replace(':','/',$templateFile).C('TEMPLATE_SUFFIX');

        }elseif(!file_exists($templateFile))    {

            // ?????????????

            $templateFile =  dirname(C('TMPL_FILE_NAME')).'/'.$templateFile.C('TEMPLATE_SUFFIX');

        }



        if(!file_exists_case($templateFile)){

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

        }

        if($pluginOn) {

            // ??????

            $this->tVar = apply_filter('template_var',$this->tVar);

        }

        $compiler   =   false;

        //????????????

        if('PHP'==$this->type || empty($this->type)) {

            // ??????????????

            extract($this->tVar, empty($varPrefix)? EXTR_OVERWRITE : EXTR_PREFIX_ALL,$varPrefix);

            // ????PHP??

            include $templateFile;

        }elseif('THINK'==$this->type){

            // ?????ThinkTemplate????

            if(!$this->checkCache($templateFile)) {

                // ???? ????

                $compiler   =   true;

                import('Think.Template.ThinkTemplate');

                $tpl = ThinkTemplate::getInstance();

                // ?????????

                $tpl->load($templateFile,$charset,$this->tVar,$varPrefix);

            }else{

                // ???? ????????

                // ??????????????

                extract($this->tVar, empty($varPrefix)? EXTR_OVERWRITE : EXTR_PREFIX_ALL,$varPrefix);

                //????????

                include CACHE_PATH.md5($templateFile).C('CACHFILE_SUFFIX');

            }

        }elseif($pluginOn) {

            // ????????????????

            use_compiler(C('TMPL_ENGINE_TYPE'),$templateFile,$this->tVar,$charset,$varPrefix);

        }

        // ???????

        $content = ob_get_clean();

        // ??????

        $content = auto_charset($content,C('TEMPLATE_CHARSET'),$charset);

        if($pluginOn) {

            // ????

            $content = apply_filter('ob_content',$content);

        }



        if(C('HTML_CACHE_ON')) {

            // ??????

            HtmlCache::writeHTMLCache($content);

        }



        if($display) {

            $showTime   =   $this->showTime($startTime);

            echo $content;

            if(C('SHOW_RUN_TIME')) {

                echo '<div  id="think_run_time" class="think_run_time">'.$showTime.'</div>';

            }

            $this->showTrace($showTime,$charset,$compiler);

            return null;

        }else {

            return $content;

        }

    }



    /**

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

     * ????Trace??

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

     * @access protected

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

     * @param string $showTime ??????

     * @param string $charset ???????

     * @param boolean $compiler ??????

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

     * @throws ThinkExecption

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

     */

    protected function showTrace($showTime,$charset,$compiler=true){

        if(C('SHOW_PAGE_TRACE')) {

            // ????Trace?? ??Trace????

            // ???? return array('????'=>$_SERVER['PHP_SELF'],'????'=>$_SERVER['SERVER_PROTOCOL'],...);

            $traceFile  =   CONFIG_PATH.'trace.php';

             if(file_exists_case($traceFile)) {

                $_trace =   include $traceFile;

             }else{

                $_trace =   array();

             }

             // ????????

            $this->trace('????',    $_SERVER['PHP_SELF']);

            $this->trace('????',    $_SERVER['REQUEST_METHOD']);

            $this->trace('????',    $_SERVER['SERVER_PROTOCOL']);

            $this->trace('????',    date('Y-m-d H:i:s',$_SERVER['REQUEST_TIME']));

            $this->trace('????',    $_SERVER['HTTP_USER_AGENT']);

            $this->trace('??ID'   ,   session_id());

            $this->trace('????',    $showTime);

            $this->trace('????',    $charset);

            $this->trace('????',    $GLOBALS['include_file']);

            $this->trace('????',    !empty($compiler)?'????':'????');

            if(isset(Log::$log[SQL_LOG_DEBUG])) {

                $log    =   Log::$log[SQL_LOG_DEBUG];

                $this->trace('SQL??',is_array($log)?count($log).'?SQL<br/>'.implode('<br/>',$log):'?SQL??');

            }else{

                $this->trace('SQL??','?SQL??');

            }

            if(isset(Log::$log[WEB_LOG_ERROR])) {

                $log    =   Log::$log[WEB_LOG_ERROR];

                $this->trace('????',is_array($log)?count($log).'???<br/>'.implode('<br/>',$log):'?????');

            }else{

                $this->trace('????','?????');

            }

            $_trace =   array_merge($_trace,$this->trace);

            $_trace = auto_charset($_trace,'utf-8');

            $_title =   auto_charset('??Trace??','utf-8');

            // ??Trace????

            include THINK_PATH.'/Tpl/PageTrace.tpl.php';

        }

    }

}//

?>