lib/plugin/Calendar.php

   1 <?php // -*-php-*-
   2 rcs_id('$Id: Calendar.php,v 1.26 2003-01-18 21:19:25 carstenklapp Exp $');
   3 /**
   4  Copyright 1999, 2000, 2001, 2002 $ThePhpWikiProgrammingTeam
   5
   6  This file is part of PhpWiki.
   7
   8  PhpWiki is free software; you can redistribute it and/or modify
   9  it under the terms of the GNU General Public License as published by
  10  the Free Software Foundation; either version 2 of the License, or
  11  (at your option) any later version.
  12
  13  PhpWiki is distributed in the hope that it will be useful,
  14  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  GNU General Public License for more details.
  17
  18  You should have received a copy of the GNU General Public License
  19  along with PhpWiki; if not, write to the Free Software
  20  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 if (!defined('SECONDS_PER_DAY'))
  24     define('SECONDS_PER_DAY', 24 * 3600);
  25
  26 // FIXME: Still needs:
  27 //
  28 //   o Better way to navigate to distant months.
  29 //     (Maybe a form with selectors for month and year)?
  30 //
  31 // It would be nice to have some way to get from the individual date
  32 // pages back to the calendar page. (Subpage support might make this
  33 // easier.)
  34
  35 /**
  36  */
  37 class WikiPlugin_Calendar
  38 extends WikiPlugin
  39 {
  40     function getName () {
  41         return _("Calendar");
  42     }
  43
  44     function getDescription () {
  45         return _("Calendar");
  46     }
  47
  48     function getVersion() {
  49         return preg_replace("/[Revision: $]/", '',
  50                             "\$Revision: 1.26 $");
  51     }
  52
  53     function getDefaultArguments() {
  54         return array('prefix'           => '[pagename]' . SUBPAGE_SEPARATOR,
  55                      'date_format'      => '%Y-%m-%d',
  56                      'year'             => '',
  57                      'month'            => '',
  58                      'month_offset'     => 0,
  59
  60                      'month_format'     => '%B, %Y',
  61                      'wday_format'      => '%a',
  62                      'start_wday'       => '0');
  63     }
  64
  65     function __header($pagename, $time) {
  66         $args = &$this->args;
  67
  68         $t = localtime($time - SECONDS_PER_DAY, 1);
  69         $prev_url = WikiURL($pagename, array('month' => $t['tm_mon'] + 1,
  70                                              'year'  => $t['tm_year'] + 1900));
  71
  72         $t = localtime($time + 32 * SECONDS_PER_DAY, 1);
  73         $next_url = WikiURL($pagename, array('month' => $t['tm_mon'] + 1,
  74                                              'year'  => $t['tm_year'] + 1900));
  75
  76         $prev = HTML::a(array('href'  => $prev_url,
  77                               'class' => 'cal-arrow',
  78                               'title' => _("Previous Month")),
  79                         '<');
  80         $next = HTML::a(array('href'  => $next_url,
  81                               'class' => 'cal-arrow',
  82                               'title' => _("Next Month")),
  83                         '>');
  84
  85
  86         $row = HTML::tr(HTML::td(array('align' => 'left'), $prev),
  87                         HTML::td(array('align' => 'center'),
  88                                  HTML::strong(array('class' => 'cal-header'),
  89                                               strftime($args['month_format'],
  90                                                        $time))),
  91                         HTML::td(array('align' => 'right'), $next));
  92
  93         return HTML::tr(HTML::td(array('colspan' => 7,
  94                                        'align'   => 'center'),
  95                                  HTML::table(array('width' => '100%',
  96                                                    'class' => 'cal-header'),
  97                                              $row)));
  98     }
  99
 100
 101     function __daynames($start_wday) {
 102         $time  = mktime(12, 0, 0, 1, 1, 2001);
 103         $t     = localtime($time, 1);
 104         $time += (7 + $start_wday - $t['tm_wday']) * SECONDS_PER_DAY;
 105
 106         $t = localtime($time, 1);
 107         assert($t['tm_wday'] == $start_wday);
 108
 109         $fs = $this->args['wday_format'];
 110         $row = HTML::tr();
 111         $row->setattr('class', 'cal-dayname');
 112         for ($i = 0; $i < 7; $i++) {
 113             $row->pushContent(HTML::td(array('class' => 'cal-dayname',
 114                                              'align' => 'center'),
 115                                        strftime($fs, $time)));
 116             $time += SECONDS_PER_DAY;
 117         }
 118         return $row;
 119     }
 120
 121     function __date($dbi, $time) {
 122         $args = &$this->args;
 123
 124         $page_for_date = $args['prefix'] . strftime($args['date_format'],
 125                                                     $time);
 126         $t = localtime($time, 1);
 127
 128         $td = HTML::td(array('align' => 'center'));
 129
 130         $mday = $t['tm_mday'];
 131         if ($mday == $this->_today) {
 132             $mday = HTML::strong($mday);
 133             $td->setAttr('class', 'cal-today');
 134         }
 135         else if ($dbi->isWikiPage($page_for_date)) {
 136             $td->setAttr('class', 'cal-day');
 137         }
 138
 139         if ($dbi->isWikiPage($page_for_date)) {
 140             $date = HTML::a(array('class' => 'cal-day',
 141                                   'href'  => WikiURL($page_for_date),
 142                                   'title' => $page_for_date),
 143                             HTML::em($mday));
 144         }
 145         else {
 146             $date = HTML::a(array('class' => 'cal-hide',
 147                                   'href'  => WikiURL($page_for_date,
 148                                                      array('action' => 'edit')),
 149                                   'title' => sprintf(_("Edit %s"),
 150                                                      $page_for_date)),
 151                             $mday);
 152         }
 153         $td->pushContent(HTML::raw('&nbsp;'), $date, HTML::raw('&nbsp;'));
 154         return $td;
 155     }
 156
 157     function run($dbi, $argstr, $request) {
 158         $this->args = $this->getArgs($argstr, $request);
 159         $args       = &$this->args;
 160
 161         $now = localtime(time() + 3600 * $request->getPref('timeOffset'), 1);
 162         foreach ( array('month' => $now['tm_mon'] + 1,
 163                         'year'  => $now['tm_year'] + 1900)
 164                   as $param => $dflt ) {
 165
 166             if (!($args[$param] = intval($args[$param])))
 167                 $args[$param]   = $dflt;
 168         }
 169
 170         $time = mktime(12, 0, 0,                               // hh, mm, ss,
 171                        $args['month'] + $args['month_offset'], // month (1-12)
 172                        1,                                      // mday (1-31)
 173                        $args['year']);
 174
 175         $cal = HTML::table(array('cellspacing' => 0,
 176                                  'cellpadding' => 2,
 177                                  'class'       => 'cal'),
 178                            HTML::thead(
 179                                        $this->__header($request->getArg('pagename'),
 180                                                        $time),
 181                                        $this->__daynames($args['start_wday'])));
 182
 183         $t = localtime($time, 1);
 184
 185         if ($now['tm_year'] == $t['tm_year'] && $now['tm_mon'] == $t['tm_mon'])
 186             $this->_today = $now['tm_mday'];
 187         else
 188             $this->_today = false;
 189
 190         $tbody = HTML::tbody();
 191         $row = HTML::tr();
 192
 193         $col = (7 + $t['tm_wday'] - $args['start_wday']) % 7;
 194         if ($col > 0)
 195             $row->pushContent(HTML::td(array('colspan' => $col)));
 196         $done = false;
 197
 198         while (!$done) {
 199             $row->pushContent($this->__date($dbi, $time));
 200
 201             if (++$col % 7 == 0) {
 202                 $tbody->pushContent($row);
 203                 $col = 0;
 204                 $row = HTML::tr();
 205             }
 206
 207             $time += SECONDS_PER_DAY;
 208             $t     = localtime($time, 1);
 209             $done  = $t['tm_mday'] == 1;
 210         }
 211
 212         if ($row->getContent()) {
 213             $row->pushContent(HTML::td(array('colspan' => (42 - $col) % 7)));
 214             $tbody->pushContent($row);
 215         }
 216         $cal->pushContent($tbody);
 217         return $cal;
 218     }
 219 };
 220
 221 // $Log: not supported by cvs2svn $
 222
 223 // For emacs users
 224 // Local Variables:
 225 // mode: php
 226 // tab-width: 8
 227 // c-basic-offset: 4
 228 // c-hanging-comment-ender-p: nil
 229 // indent-tabs-mode: nil
 230 // End:
 231 ?>