portal/patient/fwk/libs/verysimple/Phreeze/PHPRenderEngine.php

   1 <?php
   2 /** @package    verysimple::Phreeze */
   3 require_once ("IRenderEngine.php");
   4
   5 /**
   6  * PHPRenderEngine is an implementation of IRenderEngine
   7  * that uses PHP as the template language
   8  *
   9  * @package verysimple::Phreeze
  10  * @author VerySimple Inc.
  11  * @copyright 1997-2010 VerySimple, Inc.
  12  * @license http://www.gnu.org/licenses/lgpl.html LGPL
  13  * @version 1.0
  14  */
  15 class PHPRenderEngine implements IRenderEngine {
  16         /**
  17          * the file path to the template director
  18          */
  19         public $tempatePath;
  20
  21         /**
  22          * if this is true, all views will have .
  23          * php appended the last 4 chars are not .php
  24          */
  25         public $verifyExtension = true;
  26
  27         /**
  28          * stores the assigned vars
  29          */
  30         public $model = Array ();
  31
  32         /**
  33          *
  34          * @param string $templatePath
  35          * @param string $compilePath
  36          *              (not used for this render engine)
  37          */
  38         function __construct($templatePath = '', $compilePath = '') {
  39                 $this->templatePath = $templatePath;
  40
  41                 if (substr ( $this->templatePath, - 1 ) != '/' && substr ( $this->templatePath, - 1 ) != '\\')
  42                         $this->templatePath .= "/";
  43         }
  44
  45         /**
  46          * @inheritdoc
  47          */
  48         public function assign($key, $value) {
  49                 $this->model [$key] = $value;
  50         }
  51
  52         /**
  53          * @inheritdoc
  54          */
  55         public function display($template) {
  56                 // these two are special templates used by the Phreeze controller and dispatcher
  57                 if ($template == "_redirect.tpl") {
  58                         header ( "Location: " . $this->model ['url'] );
  59                         die ();
  60                 } elseif ($template == "_error.tpl") {
  61                         die ( "<h4>" . $this->model ['message'] . "</h4>" . $this->model ['stacktrace'] );
  62                 } else {
  63                         if ($this->verifyExtension && substr ( $template, - 4 ) != '.php')
  64                                 $template .= ".php";
  65
  66                         $path = $this->templatePath . $template;
  67
  68                         if (! is_readable ( $path )) {
  69                                 throw new Exception ( "The template file '" . htmlspecialchars ( $path ) . "' was not found." );
  70                         }
  71
  72                         // make this available at the scope of the included file
  73                         $engine = $this;
  74                         $model = $this->model;
  75                         include_once ($path);
  76                 }
  77         }
  78
  79         /**
  80          * Returns the specified model value
  81          */
  82         public function get($key) {
  83                 return $this->model [$key];
  84         }
  85
  86         /**
  87          * @inheritdoc
  88          */
  89         public function fetch($template) {
  90                 ob_start ();
  91
  92                 $this->display ( $template );
  93                 $buffer = ob_get_contents ();
  94
  95                 ob_end_clean ();
  96
  97                 return $buffer;
  98         }
  99
 100         /**
 101          *
 102          * @see IRenderEngine::clear()
 103          */
 104         function clear($key) {
 105                 if (array_key_exists ( $key, $this->model ))
 106                         unset ( $this->model [$key] );
 107         }
 108
 109         /**
 110          *
 111          * @see IRenderEngine::clearAll()
 112          */
 113         function clearAll() {
 114                 $this->model == array ();
 115         }
 116
 117         /**
 118          *
 119          * @see IRenderEngine::getAll()
 120          */
 121         function getAll() {
 122                 return $this->model;
 123         }
 124 }
 125
 126 ?>