lib/plugin/Calendar.php

   1 <?php // -*-php-*-
   2 rcs_id('$Id: Calendar.php,v 1.14 2002-01-26 04:43:39 dairiki Exp $');
   3
   4 if (!defined('SECONDS_PER_DAY'))
   5     define('SECONDS_PER_DAY', 24 * 3600);
   6
   7 // FIXME: Still needs:
   8 //
   9 //   o Better way to navigate to distant months.
  10 //     (Maybe a form with selectors for month and year)?
  11 //
  12 //   o Docs.  Write a pgsrc/CalendarPlugin.
  13 //
  14 // It would be nice to have some way to get from the individual date
  15 // pages back to the calendar page. (Subpage support might make this
  16 // easier.)
  17
  18 /**
  19  */
  20 class WikiPlugin_Calendar
  21 extends WikiPlugin
  22 {
  23     function getName () {
  24         return _("Calendar");
  25     }
  26
  27     function getDescription () {
  28         return _("Calendar");
  29     }
  30
  31     function getDefaultArguments() {
  32         return array('prefix'           => '[pagename].',
  33                      'date_format'      => '%Y-%m-%d',
  34                      'year'             => '',
  35                      'month'            => '',
  36                      'month_offset'     => 0,
  37
  38                      'month_format'     => '%B, %Y',
  39                      'wday_format'      => '%a',
  40                      'start_wday'       => '0');
  41     }
  42
  43     function __header($pagename, $time) {
  44         $args = &$this->args;
  45
  46         $t = localtime($time - SECONDS_PER_DAY, 1);
  47         $prev_url = WikiURL($pagename, array('month' => $t['tm_mon'] + 1,
  48                                              'year'  => $t['tm_year'] + 1900));
  49
  50         $t = localtime($time + 32 * SECONDS_PER_DAY, 1);
  51         $next_url = WikiURL($pagename, array('month' => $t['tm_mon'] + 1,
  52                                              'year'  => $t['tm_year'] + 1900));
  53
  54         $prev = HTML::a(array('href'  => $prev_url,
  55                               'class' => 'cal-arrow',
  56                               'title' => _("Previous Month")),
  57                         '<');
  58         $next = HTML::a(array('href'  => $next_url,
  59                               'class' => 'cal-arrow',
  60                               'title' => _("Next Month")),
  61                         '>');
  62
  63
  64         $row = HTML::tr(HTML::td(array('align' => 'left'), $prev),
  65                         HTML::td(array('align' => 'center'),
  66                                  HTML::strong(array('class' => 'cal-header'),
  67                                               strftime($args['month_format'], $time))),
  68                         HTML::td(array('align' => 'right'), $next));
  69
  70         return HTML::tr(HTML::td(array('colspan' => 7,
  71                                        'align'   => 'center'),
  72                                  HTML::table(array('width' => '100%'), $row)));
  73     }
  74
  75
  76     function __daynames($start_wday) {
  77         $time  = mktime(12, 0, 0, 1, 1, 2001);
  78         $t     = localtime($time, 1);
  79         $time += (7 + $start_wday - $t['tm_wday']) * SECONDS_PER_DAY;
  80
  81         $t = localtime($time, 1);
  82         assert($t['tm_wday'] == $start_wday);
  83
  84         $fs = $this->args['wday_format'];
  85         $row = HTML::tr();
  86         for ($i = 0; $i < 7; $i++) {
  87             $row->pushContent(HTML::td(array('class' => 'cal-dayname',
  88                                              'align' => 'center'),
  89                                        strftime($fs, $time)));
  90             $time += SECONDS_PER_DAY;
  91         }
  92         return $row;
  93     }
  94
  95     function __date($dbi, $time) {
  96         $args = &$this->args;
  97
  98         $page_for_date = $args['prefix'] . strftime($args['date_format'],
  99                                                     $time);
 100         $t = localtime($time, 1);
 101
 102         $td = HTML::td(array('align' => 'center'));
 103
 104         $mday = $t['tm_mday'];
 105         if ($mday == $this->_today) {
 106             $mday = HTML::strong($mday);
 107             $td->setAttr('class', 'cal-today');
 108         }
 109
 110         if ($dbi->isWikiPage($page_for_date)) {
 111             $date = HTML::a(array('class' => 'cal-day',
 112                                   'href'  => WikiURL($page_for_date),
 113                                   'title' => $page_for_date),
 114                             HTML::em($mday));
 115         }
 116         else {
 117             $date = HTML::a(array('class' => 'cal-hide',
 118                                   'href'  => WikiURL($page_for_date,
 119                                                      array('action' => 'edit')),
 120                                   'title' => sprintf(_("Edit %s"), $page_for_date)),
 121                             $mday);
 122         }
 123         $td->pushContent(NBSP, $date, NBSP);
 124         return $td;
 125     }
 126
 127     function run($dbi, $argstr, $request) {
 128         $this->args = $this->getArgs($argstr, $request);
 129         $args       = &$this->args;
 130
 131         $now = localtime(time(), 1);
 132         foreach ( array('month' => $now['tm_mon'] + 1,
 133                         'year'  => $now['tm_year'] + 1900)
 134                   as $param => $dflt ) {
 135
 136             if (!($args[$param] = intval($args[$param])))
 137                 $args[$param]   = $dflt;
 138
 139         }
 140
 141         $time = mktime(12, 0, 0,                               // hh, mm, ss,
 142                        $args['month'] + $args['month_offset'], // month (1-12)
 143                        1,                                      // mday (1-31)
 144                        $args['year']);
 145
 146         $cal = HTML::table(array('cellspacing' => 0,
 147                                  'cellpadding' => 2,
 148                                  'class'       => 'cal'),
 149                            $this->__header($request->getArg('pagename'), $time),
 150                            $this->__daynames($args['start_wday']));
 151
 152         $t = localtime($time, 1);
 153         $now = localtime(time(), 1);
 154
 155         if ($now['tm_year'] == $t['tm_year'] && $now['tm_mon'] == $t['tm_mon'])
 156             $this->_today = $now['tm_mday'];
 157         else
 158             $this->_today = false;
 159
 160
 161         $row = HTML::tr();
 162
 163         $col = (7 + $t['tm_wday'] - $args['start_wday']) % 7;
 164         if ($col > 0)
 165             $row->pushContent(HTML::td(array('colspan' => $col)));
 166         $done = false;
 167
 168         while (!$done) {
 169             $row->pushContent($this->__date($dbi, $time));
 170
 171             if (++$col % 7 == 0) {
 172                 $cal->pushContent($row);
 173                 $col = 0;
 174                 $row = HTML::tr();
 175             }
 176
 177             $time += SECONDS_PER_DAY;
 178             $t     = localtime($time, 1);
 179             $done  = $t['tm_mday'] == 1;
 180         }
 181
 182         if ($row->getContent()) {
 183             $row->pushContent(HTML::td(array('colspan' => (42 - $col) % 7)));
 184             $cal->pushContent($row);
 185         }
 186         return $cal;
 187     }
 188 };
 189
 190 // For emacs users
 191 // Local Variables:
 192 // mode: php
 193 // tab-width: 8
 194 // c-basic-offset: 4
 195 // c-hanging-comment-ender-p: nil
 196 // indent-tabs-mode: nil
 197 // End:
 198 ?>