1: <?php
 2: /**
 3:  * Copyright 2009-2012 Horde LLC (http://www.horde.org/)
 4:  *
 5:  * See the enclosed file COPYING for license information (LGPL). If you
 6:  * did not receive this file, see http://www.horde.org/licenses/lgpl21.
 7:  *
 8:  * @category Horde
 9:  * @package  Date
10:  */
11: 
12: /**
13:  * @category Horde
14:  * @package  Date
15:  */
16: class Horde_Date_Repeater_Weekend extends Horde_Date_Repeater
17: {
18:     /**
19:      * (2 * 24 * 60 * 60)
20:      */
21:     const WEEKEND_SECONDS = 172800;
22: 
23:     public $currentWeekStart;
24: 
25:     public function next($pointer = 'future')
26:     {
27:         parent::next($pointer);
28: 
29:         if (!$this->currentWeekStart) {
30:             switch ($pointer) {
31:             case 'future':
32:                 $saturdayRepeater = new Horde_Date_Repeater_DayName('saturday');
33:                 $saturdayRepeater->now = $this->now;
34:                 $nextSaturdaySpan = $saturdayRepeater->next('future');
35:                 $this->currentWeekStart = $nextSaturdaySpan->begin;
36:                 break;
37: 
38:             case 'past':
39:                 $saturdayRepeater = new Horde_Date_Repeater_DayName('saturday');
40:                 $saturdayRepeater->now = $this->now;
41:                 $saturdayRepeater->now->day++;
42:                 $lastSaturdaySpan = $saturdayRepeater->next('past');
43:                 $this->currentWeekStart = $lastSaturdaySpan->begin;
44:                 break;
45:             }
46:         } else {
47:             $direction = ($pointer == 'future') ? 1 : -1;
48:             $this->currentWeekStart->day += $direction * 7;
49:         }
50: 
51:         return new Horde_Date_Span($this->currentWeekStart, $this->currentWeekStart->add(array('day' => 2)));
52:     }
53: 
54:     public function this($pointer = 'future')
55:     {
56:         parent::this($pointer);
57: 
58:         switch ($pointer) {
59:         case 'future':
60:         case 'none':
61:             $saturdayRepeater = new Horde_Date_Repeater_DayName('saturday');
62:             $saturdayRepeater->now = $this->now;
63:             $thisSaturdaySpan = $saturdayRepeater->this('future');
64:             return new Horde_Date_Span($thisSaturdaySpan->begin, $thisSaturdaySpan->begin->add(array('day' => 2)));
65: 
66:         case 'past':
67:             $saturdayRepeater = new Horde_Date_Repeater_DayName('saturday');
68:             $saturdayRepeater->now = $this->now;
69:             $lastSaturdaySpan = $saturdayRepeater->this('past');
70:             return new Horde_Date_Span($lastSaturdaySpan->begin, $lastSaturdaySpan->begin->add(array('day' => 2)));
71:         }
72:     }
73: 
74:     public function offset($span, $amount, $pointer)
75:     {
76:         $direction = ($pointer == 'future') ? 1 : -1;
77:         $weekend = new self();
78:         $weekend->now = clone $span->begin;
79:         $start = $weekend->next($pointer)->begin;
80:         $start->day += ($amount - 1) * $direction * 7;
81:         return new Horde_Date_Span($start, $start->add($span->width()));
82:     }
83: 
84:     public function width()
85:     {
86:         return self::WEEKEND_SECONDS;
87:     }
88: 
89:     public function __toString()
90:     {
91:         return parent::__toString() . '-weekend';
92:     }
93: 
94: }
95: