includes/templates.php

   1 <?php
   2
   3 class templates_exception extends Exception {}
   4
   5 class templates {
   6     /**
   7      * File list
   8      *
   9      * @var array
  10      */
  11     protected $_files = array();
  12
  13     /**
  14      * Path to the templates files
  15      *
  16      * @var string
  17      */
  18     protected $_templatePath;
  19
  20     private $_escape = array('htmlentities');
  21
  22     public function __construct($template_path='./templates/') {
  23         $this->_templatePath = $template_path;
  24     }
  25
  26     public function getTemplatePath() {
  27         return $this->_templatePath;
  28     }
  29
  30     public function addFile($tag,$name) {
  31         $this->_files[$tag] = $name;
  32     }
  33
  34     public function render($tag) {
  35         try {
  36             if (!is_array($tag)) {
  37                 ob_start();
  38                 if (isset($this->_files['_begin'])) {
  39                     include $this->_file('_begin');
  40                 }
  41                 include $this->_file($tag);
  42                 if (isset($this->_files['_end'])) {
  43                     include $this->_file('_end');
  44                 }
  45                 //return ob_end_clean();
  46             } else {
  47                 ob_start();
  48                 if (isset($this->_files['_begin'])) {
  49                     include $this->_file('_begin');
  50                 }
  51                 $tags = $tag;
  52                 unset($tag);
  53                 foreach ($tags as $tag) {
  54                     include $this->_file($tag);
  55                 }
  56                 if (isset($this->_files['_end'])) {
  57                     include $this->_file('_end');
  58                 }
  59            }
  60            ob_end_flush();
  61         } catch (templates_exception $e) {
  62             die ($e->getMessage());
  63         } catch (Exception $e) { die('ex error: '.$e->getMessage()); }
  64     }
  65
  66     private function _file($tag) {
  67         if (is_readable($this->_templatePath.$this->_files[$tag])) {
  68             return $this->_templatePath.$this->_files[$tag];
  69         } else {
  70             throw new templates_exception('The file <em>'.$this->_templatePath.$this->_files[$tag]. '</em> is not readable');
  71         }
  72     }
  73
  74     public function setEscape($ref) {
  75         if (!in_array($ref,$this->_escape)) {
  76             $this->_escape[] = $ref;
  77         }
  78     }
  79
  80     public function remEscape($ref,$id=false) {
  81         if ($id && isset($this->_escape[$id])) {
  82             unset($this->_escape[$id]);
  83             return true;
  84         } elseif (!$id) {
  85             foreach ($this->_escape as $key => $val) {
  86                 if ($val == $ref) {
  87                     unset($this->_escape[$key]);
  88                     return true;
  89                 }
  90             }
  91         }
  92         return false;
  93     }
  94
  95     public function escape($var) {
  96         foreach($this->_escape as $fnct) {
  97             if (in_array($fnct, array('htmlentities','htmlspecialchars'))) {
  98                 $var = call_user_func($fnct, $var, ENT_COMPAT, 'utf8');
  99             } else {
 100                 $var = call_user_func($fnc, $var);
 101             }
 102         }
 103         return $var;
 104     }
 105
 106     public function __isset($key) {
 107         $strpos = strpos($key,'_');
 108         if (!is_bool($strpos) && $strpos !== 0) {
 109             return isset($this->$key);
 110         }
 111         return false;
 112     }
 113 }