templates/view.class.php

   1 <?php
   2 /* $Id$ */
   3
   4 require_once 'user_validate.php';
   5
   6 valid_user();
   7
   8 include_once 'config.inc.php';
   9 require_once 'helper.php';
  10
  11 include_once 'month_view.class.php';
  12 include_once 'week_view.class.php';
  13 include_once 'day_view.class.php';
  14 include_once 'calendar.class.php';
  15
  16 abstract class View {
  17     protected static $start_sunday;
  18     protected static $root;
  19     protected static $start_hour;
  20     protected static $end_hour;
  21     private $heading = "<div id=\"events\"><table><tr>";
  22     private $view_head_sunday = "
  23         <th class=\"event\">Sunday</th>
  24         <th class=\"event\">Monday</th>
  25         <th class=\"event\">Tuesday</th>
  26         <th class=\"event\">Wednedsday</th>
  27         <th class=\"event\">Thursday</th>
  28         <th class=\"event\">Friday</th>
  29         <th class=\"event\">Saturday</th>
  30     </tr>";
  31     private $view_head_monday = "
  32         <th class=\"event\">Monday</th>
  33         <th class=\"event\">Tuesday</th>
  34         <th class=\"event\">Wednedsday</th>
  35         <th class=\"event\">Thursday</th>
  36         <th class=\"event\">Friday</th>
  37         <th class=\"event\">Saturday</th>
  38         <th class=\"event\">Sunday</th>
  39     </tr>";
  40     private $view_head_day = "
  41         <th class=\"day_event\">__DAY__</th>
  42     </tr>";
  43
  44     function __construct($root, $start_hour, $end_hour, $start_sunday = FALSE) {
  45         self::$start_sunday = $start_sunday;
  46         self::$root = $root;
  47         self::$start_hour = $start_hour;
  48         self::$end_hour = $end_hour;
  49     }
  50
  51     protected function applyLegend() {
  52         $calenders = $_SESSION['user_settings']->getCalendars();
  53         $legend = '<p style="text-align: center">';
  54         foreach ($calenders as $calender) {
  55             $legend .= '[<span style="background: ' . $calender->color .
  56                 '">&nbsp;&nbsp;&nbsp;</span>:' . $calender->name . ']';
  57         }
  58         $legend .= '</p>';
  59         $legend .= <<<_HELP
  60             <p style="text-align: center">
  61                 Events outside configured range is only displayed
  62                 when Day or Week view is active
  63             </p>
  64 _HELP;
  65         return $legend;
  66     }
  67
  68     protected function getViewHead($kindOf) {
  69         switch ($kindOf) {
  70             case 'month':
  71                 $return = $this->heading.'<th>Week</th>';
  72                 if (self::$start_sunday)
  73                     $return .= $this->view_head_sunday;
  74                 else
  75                     $return .= $this->view_head_monday;
  76                 return $return;
  77                 break;
  78             case 'week':
  79                 if (self::$start_sunday) {
  80                     $head = str_replace('</th>', '<br/>__DATE__</th>',
  81                         $this->view_head_sunday);
  82                 }
  83                 else {
  84                     $head = str_replace('</th>', '<br/>__DATE__</th>',
  85                         $this->view_head_monday);
  86                 }
  87                 $head = '<th>Time</th>' . $head;
  88                 return $this->heading . $head;
  89                 break;
  90             case 'day':
  91                 $return = $this->heading . '<th>Time</th>';
  92                 return $return . $this->view_head_day;
  93                 break;
  94             default: trigger_error("$kindOf: ['month', 'week', 'day']", E_USER_ERROR);
  95         }
  96     }
  97
  98     /*
  99      * Function get_week_number which returns the week number of the
 100      * given date according to ISO 8601-1988
 101      * http://www.php.happycodings.com/Date_Time/code22.html
 102      */
 103     protected function is_leap_year($year) {
 104         if ((($year % 4) == 0 and ($year % 100)!=0) or ($year % 400)==0) {
 105                 return 1;
 106         } else {
 107                 return 0;
 108         }
 109     }
 110
 111     /* define ISO_WEEK_START_WDAY 1 // Monday
 112      * define ISO_WEEK1_WDAY 4 // Thursday
 113      * define YDAY_MINIMUM (-366)
 114      * int big_enough_multiple_of_7 = (-YDAY_MINIMUM / 7 + 2) * 7;
 115      * return (yday - (yday - wday + ISO_WEEK1_WDAY +
 116      * big_enough_multiple_of_7) % 7 + ISO_WEEK1_WDAY -
 117      * ISO_WEEK_START_WDAY);
 118      */
 119     private function iso_week_days($yday, $wday) {
 120         return $yday - (($yday - $wday + 382) % 7) + 3;
 121     }
 122
 123     protected function get_week_number($timestamp) {
 124         $d = getdate($timestamp);
 125         $days = $this->iso_week_days($d[ "yday"], $d[ "wday"]);
 126
 127         if ($days < 0) {
 128             $d[ "yday"] += 365 + $this->is_leap_year(--$d[ "year"]);
 129             $days = $this->iso_week_days($d[ "yday"], $d[ "wday"]);
 130         } else {
 131             $d[ "yday"] -= 365 + $this->is_leap_year($d[ "year"]);
 132             $d2 = $this->iso_week_days($d[ "yday"], $d[ "wday"]);
 133             if (0 <= $d2) {
 134                 /* $d["year"]++; */
 135                 $days = $d2;
 136             }
 137         }
 138         $adjust = 1;
 139         $day = date('w');
 140         if ($_SESSION['user_settings']->getStartWeek() === true && $day == 0)
 141             $adjust = 2;
 142         return (int)($days / 7) + $adjust;
 143     }
 144
 145     protected function getStartDay($year, $month) {
 146         /* date('w') returns start day counting from Sunday */
 147         $start = date('w', mktime(0,0,0,$month,1,$year));
 148         return $start;
 149     }
 150
 151     protected function isToDay($year, $month, $day) {
 152         return ($year == date('Y') && $month == date('n') && $day == date('j'));
 153     }
 154
 155     protected function lastDayInWeek($year, $week) {
 156         $weekEndDay = 0;  // 0 = Sunday.
 157         $dayOfYear = 4 + (($week - 1) * 7);
 158         $date = mktime(0, 0, 0, 1, $dayOfYear, $year);
 159         // Find the last day of this week.
 160         $dayOfWeek = date("w", $date);
 161         $daysToAdd = ($weekEndDay - $dayOfWeek + 7) % 7;
 162         $date += $daysToAdd * 24*60*60;
 163         return (self::$start_sunday) ? $date - (24*60*60) : $date;
 164     }
 165
 166     protected function dateFromDayInYear($year, $day) {
 167         $now = mktime(0, 0, 0, 1, 1, $year);
 168         return date('l, j F', strtotime("+$day days", $now));
 169     }
 170
 171     protected function makeSummary($infos) {
 172         $summary = 'Title: ';
 173         $summary .= (isset($infos['summary']) && ! empty($infos['summary'])) ?
 174                 $infos['summary'] : 'Untitled';
 175         $summary .= "\n";
 176         $summary .= 'Date: ';
 177         $start = strtotime($infos['dates'][0]['start']);
 178         $date = date("D j M Y", $start);
 179         $end = strtotime($infos['dates'][0]['end']);
 180         $summary .= $date . ' ' . date("G:i", $start) . ' - ' . date("G:i", $end);
 181
 182         return $summary;
 183     }
 184
 185     protected function makeEvent($cell, $uri, $infos) {
 186         $history = $_SERVER['PHP_SELF'];
 187         $summary = (isset($infos['summary']) && ! empty($infos['summary'])) ?
 188                 $infos['summary'] : 'Untitled';
 189         $history .= (empty($_SERVER['QUERY_STRING'])) ? '' : '?'.$_SERVER['QUERY_STRING'];
 190         //$url = WEB_ROOT . 'events/edit_event.php?etag='. $uri;
 191         $url = 'etag='. $uri.'&referer='.$history.'&cal='.$infos['cal'];
 192         $url = WEB_ROOT . 'events/edit_event.php?' . urlencode($url);
 193         $c = '<span style="background: '.$infos['color'].';color: #E6E6E6;
 194         font-weigth: bold;"><a href="'.$url.
 195         '" title="'.$this->makeSummary($infos).'">'.$summary.'</a></span>';
 196         return ($cell != '') ? "$cell<br/>$c" : $c;
 197     }
 198
 199     protected function getEvents($range) {
 200         $list = array();
 201         $all_events = array();
 202
 203         $cals = $_SESSION['user_settings']->getCalendars();
 204         //file_put_contents('/tmp/davical.log',
 205         //    __FILE__ . ": " . var_export($cals, TRUE), FILE_APPEND);
 206         if (! $cals)
 207             return NULL;
 208         $start = CaldavRessource::timestamp2ICal($range['start'], TRUE);
 209         if ($_SESSION['user_settings']->getStartWeek() === FALSE) {
 210             $datetime = explode('T', $start);
 211             //print_r($datetime);
 212             $day = $datetime[0] + 1;
 213             $start = $day.'T'.$datetime[1].'Z';
 214         }
 215         $end = CaldavRessource::timestamp2ICal($range['end'], TRUE);
 216         $datetime = explode('T', $end);
 217         $end = $datetime[0].'T'.'235959Z';
 218         //print "$start:$end<br/>";
 219         foreach ($cals as $cal) {
 220             //var_dump($cal);
 221                 $conf = implode_cal(decode($cal->config));
 222                 //var_dump($conf);
 223             $events = new Calendar($conf['url'], $conf['uid'], $conf['pwd']);
 224             //print_r($events);
 225                 $events->getComponents($start, $end);
 226                 //print_r($events);
 227             $all_events[$cal->name] = $events;
 228             foreach ($events as $event) {
 229                 $dates = $event->getActiveDates();
 230                 //file_put_contents('/tmp/davical.log',
 231                 //__FILE__ . ": " . var_export($dates, TRUE), FILE_APPEND);
 232                 //var_dump($dates);
 233                 $comp = $event->getBaseComponent();
 234                 //print_r($comp);
 235                 $summary = $comp->GetPValue('SUMMARY');
 236                 $item = array();
 237                         $dtend = explode('T', $comp->GetPValue('DTEND'));
 238                 //print_r($comp->GetPValue('DTEND'));
 239                 //print "<br/>";
 240                 //print_r($dtend);
 241                 //print "<br/>";
 242                 //print_r($dates);
 243                 //print "<br/>--------------------------<br/>";
 244                 if (count($dates) > 0) {
 245                     foreach ($dates as $date) {
 246                         //print_r($date);
 247                         //print "<br/>--------------------------<br/>";
 248                         //$datetime = explode('T', $date);
 249                         //print_r($dtend);
 250                         //print "<br/>--------------------------<br/>";
 251                                     //if (count($datetime) > 1) {
 252                         if (count($dtend) > 1) {
 253                                         //if (count($dtend) < 2)
 254                                             //    array_push($dtend, '235959');
 255                                         //$endtime = $datetime[0].'T'.$dtend[1];
 256                             $endtime = $dtend[0].'T'.$dtend[1];
 257                                     }
 258                         else {
 259                             //$endtime = $datetime[0];
 260                             $day = strtotime($dtend[0]);
 261                             $day = strtotime("-1 day", $day);
 262                             $endtime = date("Ymd\T235959", $day);
 263                             //$endtime = $endtime."T235959";
 264                             //$endtime = $dtend[0]."T000000";
 265                         }
 266                         //print "$date:$endtime<br/>";
 267                         array_push($item, array('start' => $date, 'end' => $endtime));
 268                     }
 269                     $list[$event->getEtag()] = array('color' => $cal->color,
 270                     'summary' => $summary, 'dates' => $item, 'cal' => $cal->name);
 271                 }
 272             }
 273         }
 274         $_SESSION['all_events'] = $all_events;
 275         //var_dump($list);
 276         return $list;
 277     }
 278
 279     protected abstract function parseDate();
 280     protected abstract function getHead();
 281     public abstract function getView($year = NULL, $other = NULL);
 282 }
 283
 284 class PageView extends View {
 285     const DAY = 0;
 286     const WEEK = 1;
 287     const MONTH = 2;
 288
 289     function __construct($root, $start_hour, $end_hour, $start_sunday = FALSE) {
 290         parent::__construct($root, $start_hour, $end_hour, $start_sunday);
 291     }
 292
 293     public function createView($view) {
 294         switch ($view) {
 295             case (self::DAY): return new DayView(); break;
 296             case (self::WEEK): return new WeekView(); break;
 297             case (self::MONTH): return new MonthView(); break;
 298             default: trigger_error("$view: ['MONTH', 'WEEK', 'DAY']", E_USER_ERROR);
 299         }
 300     }
 301
 302     protected function parseDate() {
 303         throw new Exception("Function can only be called from a subclass");
 304     }
 305
 306     protected function getHead() {
 307         throw new Exception("Function can only be called from a subclass");
 308     }
 309
 310     public function getView($year = NULL, $other = NULL) {
 311         throw new Exception("Function can only be called from a subclass");
 312     }
 313 }