class/template/Smarty_Template.class.php

   1 <?php
   2
   3 /**
   4   * Smarty_Template.class.php
   5   *
   6   * This file contains a Template subclass intended as a bridge between
   7   * SquirrelMail and Smarty.  All abstract methods from the Template class
   8   * are implemented here.
   9   *
  10   * @copyright &copy; 2003-2007 The SquirrelMail Project Team
  11   * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  12   * @version $Id$
  13   * @package squirrelmail
  14   * @subpackage Template
  15   * @since 1.5.2
  16   *
  17   */
  18
  19 /**
  20   * The SquirrelMail Smarty Template class.  Extends the base
  21   * Template class for use with Smarty template pages.
  22   *
  23   * @author Paul Lesniewski <paul at squirrelmail.org>
  24   * @package squirrelmail
  25   *
  26   */
  27 class Smarty_Template extends Template
  28 {
  29
  30     /**
  31       * The Smarty template object
  32       *
  33       * @var object
  34       *
  35       */
  36     var $smarty_template = null;
  37
  38
  39     /**
  40       * Constructor
  41       *
  42       * Please do not call directly.  Use Template::construct_template().
  43       *
  44       * @param string $template_id the template ID
  45       *
  46       */
  47     function Smarty_Template($template_id) {
  48 //FIXME: find a way to test that this is ONLY ever called
  49 //       from parent's construct_template() method (I doubt it
  50 //       is worth the trouble to parse the current stack trace)
  51 //        if (???)
  52 //            trigger_error('Please do not use default Smarty_Template() constructor.  Instead, use Template::construct_template().', E_USER_ERROR);
  53
  54         parent::Template($template_id);
  55
  56
  57         // load smarty settings
  58         //
  59         // instantiate and set up Smarty object
  60         //
  61         $smarty_path
  62             = Template::get_template_config($this->template_set_id, 'smarty_path');
  63         require($smarty_path);
  64         $this->smarty_template = new Smarty();
  65         $this->smarty_template->compile_dir
  66             = Template::get_template_config($this->template_set_id, 'smarty_compile_dir');
  67         $this->smarty_template->cache_dir
  68             = Template::get_template_config($this->template_set_id, 'smarty_cache_dir');
  69         $this->smarty_template->config_dir
  70             = Template::get_template_config($this->template_set_id, 'smarty_config_dir');
  71
  72         // note that we do not use Smarty's template_dir
  73         // because SquirrelMail has its own method of
  74         // determining template file paths
  75         //
  76         //$this->smarty_template->template_dir =
  77
  78     }
  79
  80     /**
  81       * Assigns values to template variables
  82       *
  83       * @param array|string $tpl_var the template variable name(s)
  84       * @param mixed $value the value to assign
  85 FIXME: Proposed idea to add a parameter here that turns variable
  86        encoding on, so that we can make sure output is always
  87        run through something like htmlspecialchars() (maybe even nl2br()?)
  88       *
  89       */
  90     function assign($tpl_var, $value = NULL) {
  91
  92         $this->smarty_template->assign($tpl_var, $value);
  93
  94     }
  95
  96     /**
  97       * Assigns values to template variables by reference
  98       *
  99       * @param string $tpl_var the template variable name
 100       * @param mixed $value the referenced value to assign
 101 FIXME: Proposed idea to add a parameter here that turns variable
 102        encoding on, so that we can make sure output is always
 103        run through something like htmlspecialchars() (maybe even nl2br()?)
 104       *
 105       */
 106     function assign_by_ref($tpl_var, &$value) {
 107
 108         $this->smarty_template->assign_by_ref($tpl_var, $value);
 109
 110     }
 111
 112     /**
 113       * Clears the values of all assigned varaiables.
 114       *
 115       */
 116     function clear_all_assign() {
 117
 118         $this->smarty_template->clear_all_assign();
 119
 120     }
 121
 122     /**
 123       * Returns assigned variable value(s).
 124       *
 125       * @param string $varname If given, the value of that variable
 126       *                        is returned, assuming it has been
 127       *                        previously assigned.  If not specified
 128       *                        an array of all assigned variables is
 129       *                        returned. (optional)
 130       *
 131       * @return mixed Desired single variable value or list of all
 132       *               assigned variable values.
 133       *
 134       */
 135     function get_template_vars($varname=NULL) {
 136
 137         return $this->smarty_template->get_template_vars($varname);
 138
 139     }
 140
 141     /**
 142       * Appends values to template variables
 143       *
 144       * @param array|string $tpl_var the template variable name(s)
 145       * @param mixed $value the value to append
 146       * @param boolean $merge when $value is given as an array,
 147       *                       this indicates whether or not that
 148       *                       array itself should be appended as
 149       *                       a new template variable value or if
 150       *                       that array's values should be merged
 151       *                       into the existing array of template
 152       *                       variable values
 153 FIXME: Proposed idea to add a parameter here that turns variable
 154        encoding on, so that we can make sure output is always
 155        run through something like htmlspecialchars() (maybe even nl2br()?)
 156       *
 157       */
 158     function append($tpl_var, $value = NULL, $merge = FALSE) {
 159
 160         $this->smarty_template->append($tpl_var, $value, $merge);
 161
 162     }
 163
 164     /**
 165       * Appends values to template variables by reference
 166       *
 167       * @param string $tpl_var the template variable name
 168       * @param mixed $value the referenced value to append
 169       * @param boolean $merge when $value is given as an array,
 170       *                       this indicates whether or not that
 171       *                       array itself should be appended as
 172       *                       a new template variable value or if
 173       *                       that array's values should be merged
 174       *                       into the existing array of template
 175       *                       variable values
 176 FIXME: Proposed idea to add a parameter here that turns variable
 177        encoding on, so that we can make sure output is always
 178        run through something like htmlspecialchars() (maybe even nl2br()?)
 179       *
 180       */
 181     function append_by_ref($tpl_var, &$value, $merge = FALSE) {
 182
 183         $this->smarty_template->append_by_ref($tpl_var, $value, $merge);
 184
 185     }
 186
 187     /**
 188       * Applys the template and generates final output destined
 189       * for the user's browser
 190       *
 191       * @param string $filepath The full file path to the template to be applied
 192       *
 193       * @return string The output for the given template
 194       *
 195       */
 196     function apply_template($filepath) {
 197
 198         // if being passed a raw .css or .js file, default
 199         // Smarty delimiters will cause errors
 200         //
 201         if (strrpos($filepath, '.css') === (strlen($filepath) - 4)
 202          || strrpos($filepath, '.js') === (strlen($filepath) - 3)) {
 203             $this->smarty_template->left_delimiter = '{=';
 204             $this->smarty_template->right_delimiter = '=}';
 205         }
 206
 207         // Smarty wants absolute paths
 208         //
 209         if (strpos($filepath, '/') === 0)
 210             return $this->smarty_template->fetch('file:' . $filepath);
 211         else
 212             return $this->smarty_template->fetch('file:' . getcwd() . '/' . $filepath);
 213
 214     }
 215
 216 }
 217