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      * mbstring.overload flag

    21      *

    22      * @var int

    23      */

    24     public $mbstring_overload = 0;

    25 

    26     /**

    27      * populate Source Object with meta data from Resource

    28      *

    29      * @param Smarty_Template_Source $source source object

    30      * @param Smarty_Internal_Template $_template template object

    31      *

    32      * @throws SmartyException

    33      */

    34     public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template = null) {

    35         $uid = sha1(getcwd());

    36         $sources = array();

    37         $components = explode('|', $source->name);

    38         $exists = true;

    39         foreach ($components as $component) {

    40             $s = Smarty_Resource::source(null, $source->smarty, $component);

    41             if ($s->type == 'php') {

    42                 throw new SmartyException("Resource type {$s->type} cannot be used with the extends resource type");

    43             }

    44             $sources[$s->uid] = $s;

    45             $uid .= realpath($s->filepath);

    46             if ($_template && $_template->smarty->compile_check) {

    47                 $exists = $exists && $s->exists;

    48             }

    49         }

    50         $source->components = $sources;

    51         $source->filepath = $s->filepath;

    52         $source->uid = sha1($uid);

    53         if ($_template && $_template->smarty->compile_check) {

    54             $source->timestamp = $s->timestamp;

    55             $source->exists = $exists;

    56         }

    57         // need the template at getContent()

    58         $source->template = $_template;

    59     }

    60 

    61     /**

    62      * populate Source Object with timestamp and exists from Resource

    63      *

    64      * @param Smarty_Template_Source $source source object

    65      */

    66     public function populateTimestamp(Smarty_Template_Source $source) {

    67         $source->exists = true;

    68         foreach ($source->components as $s) {

    69             $source->exists = $source->exists && $s->exists;

    70         }

    71         $source->timestamp = $s->timestamp;

    72     }

    73 

    74     /**

    75      * Load template's source from files into current template object

    76      *

    77      * @param Smarty_Template_Source $source source object

    78      *

    79      * @return string template source

    80      * @throws SmartyException if source cannot be loaded

    81      */

    82     public function getContent(Smarty_Template_Source $source) {

    83         if (!$source->exists) {

    84             throw new SmartyException("Unable to read template {$source->type} '{$source->name}'");

    85         }

    86 

    87         $_components = array_reverse($source->components);

    88 

    89         $_content = '';

    90         foreach ($_components as $_component) {

    91             // read content

    92             $_content .= $_component->content;

    93         }

    94         return $_content;

    95     }

    96 

    97     /**

    98      * Determine basename for compiled filename

    99      *

   100      * @param Smarty_Template_Source $source source object

   101      *

   102      * @return string resource's basename

   103      */

   104     public function getBasename(Smarty_Template_Source $source) {

   105         return str_replace(':', '.', basename($source->filepath));

   106     }

   107 }