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   1  <?php
   2  
   3  /**
   4   *  File: calendar.php | (c) dynarch.com 2004
   5   *  Distributed as part of "The Coolest DHTML Calendar"
   6   *  under the same terms.
   7   *  -----------------------------------------------------------------
   8   *  This file implements a simple PHP wrapper for the calendar.  It
   9   *  allows you to easily include all the calendar files and setup the
  10   *  calendar by instantiating and calling a PHP object.
  11   */
  12  
  13  define('NEWLINE', "\n");
  14  
  15  class DHTML_Calendar {
  16      var $calendar_lib_path;
  17  
  18      var $calendar_file;
  19      var $calendar_lang_file;
  20      var $calendar_setup_file;
  21      var $calendar_theme_file;
  22      var $calendar_options;
  23  
  24      function DHTML_Calendar($calendar_lib_path = '/calendar/',
  25                              $lang              = 'en',
  26                              $theme             = 'calendar-win2k-1',
  27                              $stripped          = true) {
  28          if ($stripped) {
  29              $this->calendar_file = 'calendar_stripped.js';
  30              $this->calendar_setup_file = 'calendar-setup_stripped.js';
  31          } else {
  32              $this->calendar_file = 'calendar.js';
  33              $this->calendar_setup_file = 'calendar-setup.js';
  34          }
  35          $this->calendar_lang_file = 'lang/calendar-' . $lang . '.js';
  36          $this->calendar_theme_file = $theme.'.css';
  37          $this->calendar_lib_path = preg_replace('/\/+$/', '/', $calendar_lib_path);
  38          $this->calendar_options = array('ifFormat' => '%Y/%m/%d',
  39                                          'daFormat' => '%Y/%m/%d');
  40      }
  41  
  42      function set_option($name, $value) {
  43          $this->calendar_options[$name] = $value;
  44      }
  45  
  46      function load_files() {
  47          echo $this->get_load_files_code();
  48      }
  49  
  50      function get_load_files_code() {
  51          $code  = ( '<link rel="stylesheet" type="text/css" media="all" href="' .
  52                     $this->calendar_lib_path . $this->calendar_theme_file .
  53                     '" />' . NEWLINE );
  54          $code .= ( '<script type="text/javascript" src="' .
  55                     $this->calendar_lib_path . $this->calendar_file .
  56                     '"></script>' . NEWLINE );
  57          $code .= ( '<script type="text/javascript" src="' .
  58                     $this->calendar_lib_path . $this->calendar_lang_file .
  59                     '"></script>' . NEWLINE );
  60          $code .= ( '<script type="text/javascript" src="' .
  61                     $this->calendar_lib_path . $this->calendar_setup_file .
  62                     '"></script>' );
  63          return $code;
  64      }
  65  
  66      function _make_calendar($other_options = array()) {
  67          $js_options = $this->_make_js_hash(array_merge($this->calendar_options, $other_options));
  68          $code  = ( '<script type="text/javascript">Calendar.setup({' .
  69                     $js_options .
  70                     '});</script>' );
  71          return $code;
  72      }
  73  
  74      function make_input_field($cal_options = array(), $field_attributes = array()) {
  75          $id = $this->_gen_id();
  76          $attrstr = $this->_make_html_attr(array_merge($field_attributes,
  77                                                        array('id'   => $this->_field_id($id),
  78                                                              'type' => 'text')));
  79          echo '<input ' . $attrstr .'/>';
  80          echo '<a href="#" id="'. $this->_trigger_id($id) . '">' .
  81              '<img align="middle" border="0" src="' . $this->calendar_lib_path . 'img.gif" alt="" /></a>';
  82  
  83          $options = array_merge($cal_options,
  84                                 array('inputField' => $this->_field_id($id),
  85                                       'button'     => $this->_trigger_id($id)));
  86          echo $this->_make_calendar($options);
  87      }
  88  
  89      /// PRIVATE SECTION
  90  
  91      function _field_id($id) { return 'f-calendar-field-' . $id; }
  92      function _trigger_id($id) { return 'f-calendar-trigger-' . $id; }
  93      function _gen_id() { static $id = 0; return ++$id; }
  94  
  95      function _make_js_hash($array) {
  96          $jstr = '';
  97          reset($array);
  98          while (list($key, $val) = each($array)) {
  99              if (is_bool($val))
 100                  $val = $val ? 'true' : 'false';
 101              else if (!is_numeric($val))
 102                  $val = '"'.$val.'"';
 103              if ($jstr) $jstr .= ',';
 104              $jstr .= '"' . $key . '":' . $val;
 105          }
 106          return $jstr;
 107      }
 108  
 109      function _make_html_attr($array) {
 110          $attrstr = '';
 111          reset($array);
 112          while (list($key, $val) = each($array)) {
 113              $attrstr .= $key . '="' . $val . '" ';
 114          }
 115          return $attrstr;
 116      }
 117  };
 118  
 119  ?>