lib/api/smarty/sysplugins/smarty_internal_resource_extends.php

   1 <?php
   2 /**
   3  * Smarty Internal Plugin Resource Extends
   4  *
   5  * @package    Smarty
   6  * @subpackage TemplateResources
   7  * @author     Uwe Tews
   8  * @author     Rodney Rehm
   9  */
  10
  11 /**
  12  * Smarty Internal Plugin Resource Extends
  13  * Implements the file system as resource for Smarty which {extend}s a chain of template files templates
  14  *
  15  * @package    Smarty
  16  * @subpackage TemplateResources
  17  */
  18 class Smarty_Internal_Resource_Extends extends Smarty_Resource
  19 {
  20     /**
  21      * mbstring.overload flag
  22      *
  23      * @var int
  24      */
  25     public $mbstring_overload = 0;
  26
  27     /**
  28      * populate Source Object with meta data from Resource
  29      *
  30      * @param Smarty_Template_Source   $source    source object
  31      * @param Smarty_Internal_Template $_template template object
  32      *
  33      * @throws SmartyException
  34      */
  35     public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null)
  36     {
  37         $uid = sha1(getcwd());
  38         $sources = array();
  39         $components = explode('|', $source->name);
  40         $exists = true;
  41         foreach ($components as $component) {
  42             $s = Smarty_Resource::source(null, $source->smarty, $component);
  43             if ($s->type == 'php') {
  44                 throw new SmartyException("Resource type {$s->type} cannot be used with the extends resource type");
  45             }
  46             $sources[$s->uid] = $s;
  47             $uid .= realpath($s->filepath);
  48             if ($_template && $_template->smarty->compile_check) {
  49                 $exists = $exists && $s->exists;
  50             }
  51         }
  52         $source->components = $sources;
  53         $source->filepath = $s->filepath;
  54         $source->uid = sha1($uid);
  55         if ($_template && $_template->smarty->compile_check) {
  56             $source->timestamp = $s->timestamp;
  57             $source->exists = $exists;
  58         }
  59         // need the template at getContent()
  60         $source->template = $_template;
  61     }
  62
  63     /**
  64      * populate Source Object with timestamp and exists from Resource
  65      *
  66      * @param Smarty_Template_Source $source source object
  67      */
  68     public function populateTimestamp(Smarty_Template_Source $source)
  69     {
  70         $source->exists = true;
  71         foreach ($source->components as $s) {
  72             $source->exists = $source->exists && $s->exists;
  73         }
  74         $source->timestamp = $s->timestamp;
  75     }
  76
  77     /**
  78      * Load template's source from files into current template object
  79      *
  80      * @param Smarty_Template_Source $source source object
  81      *
  82      * @return string template source
  83      * @throws SmartyException if source cannot be loaded
  84      */
  85     public function getContent(Smarty_Template_Source $source)
  86     {
  87         if (!$source->exists) {
  88             throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");
  89         }
  90
  91         $_components = array_reverse($source->components);
  92
  93         $_content = '';
  94         foreach ($_components as $_component) {
  95             // read content
  96             $_content .= $_component->content;
  97         }
  98         return $_content;
  99     }
 100
 101     /**
 102      * Determine basename for compiled filename
 103      *
 104      * @param Smarty_Template_Source $source source object
 105      *
 106      * @return string resource's basename
 107      */
 108     public function getBasename(Smarty_Template_Source $source)
 109     {
 110         return str_replace(':', '.', basename($source->filepath));
 111     }
 112 }