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Viewing changes to codeigniter/system/libraries/Calendar.php

  • Committer: Henrik G.
  • Date: 2013-03-26 23:22:55 UTC
  • Revision ID: henrik.gustavsson@his.se-20130326232255-ik6snyatlbkf3zs1
First seed of Lenasys ... Needs to be Organized Further

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codeigniter/system/libraries/Calendar.php
1
 
<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
2
 
/**
3
 
 * CodeIgniter
4
 
 *
5
 
 * An open source application development framework for PHP 5.1.6 or newer
6
 
 *
7
 
 * @package             CodeIgniter
8
 
 * @author              ExpressionEngine Dev Team
9
 
 * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
10
 
 * @license             http://codeigniter.com/user_guide/license.html
11
 
 * @link                http://codeigniter.com
12
 
 * @since               Version 1.0
13
 
 * @filesource
14
 
 */
15
 
 
16
 
// ------------------------------------------------------------------------
17
 
 
18
 
/**
19
 
 * CodeIgniter Calendar Class
20
 
 *
21
 
 * This class enables the creation of calendars
22
 
 *
23
 
 * @package             CodeIgniter
24
 
 * @subpackage  Libraries
25
 
 * @category    Libraries
26
 
 * @author              ExpressionEngine Dev Team
27
 
 * @link                http://codeigniter.com/user_guide/libraries/calendar.html
28
 
 */
29
 
class CI_Calendar {
30
 
 
31
 
        var $CI;
32
 
        var $lang;
33
 
        var $local_time;
34
 
        var $template           = '';
35
 
        var $start_day          = 'sunday';
36
 
        var $month_type         = 'long';
37
 
        var $day_type           = 'abr';
38
 
        var $show_next_prev     = FALSE;
39
 
        var $next_prev_url      = '';
40
 
 
41
 
        /**
42
 
         * Constructor
43
 
         *
44
 
         * Loads the calendar language file and sets the default time reference
45
 
         */
46
 
        public function __construct($config = array())
47
 
        {
48
 
                $this->CI =& get_instance();
49
 
 
50
 
                if ( ! in_array('calendar_lang.php', $this->CI->lang->is_loaded, TRUE))
51
 
                {
52
 
                        $this->CI->lang->load('calendar');
53
 
                }
54
 
 
55
 
                $this->local_time = time();
56
 
 
57
 
                if (count($config) > 0)
58
 
                {
59
 
                        $this->initialize($config);
60
 
                }
61
 
 
62
 
                log_message('debug', "Calendar Class Initialized");
63
 
        }
64
 
 
65
 
        // --------------------------------------------------------------------
66
 
 
67
 
        /**
68
 
         * Initialize the user preferences
69
 
         *
70
 
         * Accepts an associative array as input, containing display preferences
71
 
         *
72
 
         * @access      public
73
 
         * @param       array   config preferences
74
 
         * @return      void
75
 
         */
76
 
        function initialize($config = array())
77
 
        {
78
 
                foreach ($config as $key => $val)
79
 
                {
80
 
                        if (isset($this->$key))
81
 
                        {
82
 
                                $this->$key = $val;
83
 
                        }
84
 
                }
85
 
        }
86
 
 
87
 
        // --------------------------------------------------------------------
88
 
 
89
 
        /**
90
 
         * Generate the calendar
91
 
         *
92
 
         * @access      public
93
 
         * @param       integer the year
94
 
         * @param       integer the month
95
 
         * @param       array   the data to be shown in the calendar cells
96
 
         * @return      string
97
 
         */
98
 
        function generate($year = '', $month = '', $data = array())
99
 
        {
100
 
                // Set and validate the supplied month/year
101
 
                if ($year == '')
102
 
                        $year  = date("Y", $this->local_time);
103
 
 
104
 
                if ($month == '')
105
 
                        $month = date("m", $this->local_time);
106
 
 
107
 
                if (strlen($year) == 1)
108
 
                        $year = '200'.$year;
109
 
 
110
 
                if (strlen($year) == 2)
111
 
                        $year = '20'.$year;
112
 
 
113
 
                if (strlen($month) == 1)
114
 
                        $month = '0'.$month;
115
 
 
116
 
                $adjusted_date = $this->adjust_date($month, $year);
117
 
 
118
 
                $month  = $adjusted_date['month'];
119
 
                $year   = $adjusted_date['year'];
120
 
 
121
 
                // Determine the total days in the month
122
 
                $total_days = $this->get_total_days($month, $year);
123
 
 
124
 
                // Set the starting day of the week
125
 
                $start_days     = array('sunday' => 0, 'monday' => 1, 'tuesday' => 2, 'wednesday' => 3, 'thursday' => 4, 'friday' => 5, 'saturday' => 6);
126
 
                $start_day = ( ! isset($start_days[$this->start_day])) ? 0 : $start_days[$this->start_day];
127
 
 
128
 
                // Set the starting day number
129
 
                $local_date = mktime(12, 0, 0, $month, 1, $year);
130
 
                $date = getdate($local_date);
131
 
                $day  = $start_day + 1 - $date["wday"];
132
 
 
133
 
                while ($day > 1)
134
 
                {
135
 
                        $day -= 7;
136
 
                }
137
 
 
138
 
                // Set the current month/year/day
139
 
                // We use this to determine the "today" date
140
 
                $cur_year       = date("Y", $this->local_time);
141
 
                $cur_month      = date("m", $this->local_time);
142
 
                $cur_day        = date("j", $this->local_time);
143
 
 
144
 
                $is_current_month = ($cur_year == $year AND $cur_month == $month) ? TRUE : FALSE;
145
 
 
146
 
                // Generate the template data array
147
 
                $this->parse_template();
148
 
 
149
 
                // Begin building the calendar output
150
 
                $out = $this->temp['table_open'];
151
 
                $out .= "\n";
152
 
 
153
 
                $out .= "\n";
154
 
                $out .= $this->temp['heading_row_start'];
155
 
                $out .= "\n";
156
 
 
157
 
                // "previous" month link
158
 
                if ($this->show_next_prev == TRUE)
159
 
                {
160
 
                        // Add a trailing slash to the  URL if needed
161
 
                        $this->next_prev_url = preg_replace("/(.+?)\/*$/", "\\1/",  $this->next_prev_url);
162
 
 
163
 
                        $adjusted_date = $this->adjust_date($month - 1, $year);
164
 
                        $out .= str_replace('{previous_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_previous_cell']);
165
 
                        $out .= "\n";
166
 
                }
167
 
 
168
 
                // Heading containing the month/year
169
 
                $colspan = ($this->show_next_prev == TRUE) ? 5 : 7;
170
 
 
171
 
                $this->temp['heading_title_cell'] = str_replace('{colspan}', $colspan, $this->temp['heading_title_cell']);
172
 
                $this->temp['heading_title_cell'] = str_replace('{heading}', $this->get_month_name($month)."&nbsp;".$year, $this->temp['heading_title_cell']);
173
 
 
174
 
                $out .= $this->temp['heading_title_cell'];
175
 
                $out .= "\n";
176
 
 
177
 
                // "next" month link
178
 
                if ($this->show_next_prev == TRUE)
179
 
                {
180
 
                        $adjusted_date = $this->adjust_date($month + 1, $year);
181
 
                        $out .= str_replace('{next_url}', $this->next_prev_url.$adjusted_date['year'].'/'.$adjusted_date['month'], $this->temp['heading_next_cell']);
182
 
                }
183
 
 
184
 
                $out .= "\n";
185
 
                $out .= $this->temp['heading_row_end'];
186
 
                $out .= "\n";
187
 
 
188
 
                // Write the cells containing the days of the week
189
 
                $out .= "\n";
190
 
                $out .= $this->temp['week_row_start'];
191
 
                $out .= "\n";
192
 
 
193
 
                $day_names = $this->get_day_names();
194
 
 
195
 
                for ($i = 0; $i < 7; $i ++)
196
 
                {
197
 
                        $out .= str_replace('{week_day}', $day_names[($start_day + $i) %7], $this->temp['week_day_cell']);
198
 
                }
199
 
 
200
 
                $out .= "\n";
201
 
                $out .= $this->temp['week_row_end'];
202
 
                $out .= "\n";
203
 
 
204
 
                // Build the main body of the calendar
205
 
                while ($day <= $total_days)
206
 
                {
207
 
                        $out .= "\n";
208
 
                        $out .= $this->temp['cal_row_start'];
209
 
                        $out .= "\n";
210
 
 
211
 
                        for ($i = 0; $i < 7; $i++)
212
 
                        {
213
 
                                $out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_start_today'] : $this->temp['cal_cell_start'];
214
 
 
215
 
                                if ($day > 0 AND $day <= $total_days)
216
 
                                {
217
 
                                        if (isset($data[$day]))
218
 
                                        {
219
 
                                                // Cells with content
220
 
                                                $temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_content_today'] : $this->temp['cal_cell_content'];
221
 
                                                $out .= str_replace('{day}', $day, str_replace('{content}', $data[$day], $temp));
222
 
                                        }
223
 
                                        else
224
 
                                        {
225
 
                                                // Cells with no content
226
 
                                                $temp = ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_no_content_today'] : $this->temp['cal_cell_no_content'];
227
 
                                                $out .= str_replace('{day}', $day, $temp);
228
 
                                        }
229
 
                                }
230
 
                                else
231
 
                                {
232
 
                                        // Blank cells
233
 
                                        $out .= $this->temp['cal_cell_blank'];
234
 
                                }
235
 
 
236
 
                                $out .= ($is_current_month == TRUE AND $day == $cur_day) ? $this->temp['cal_cell_end_today'] : $this->temp['cal_cell_end'];                                     
237
 
                                $day++;
238
 
                        }
239
 
 
240
 
                        $out .= "\n";
241
 
                        $out .= $this->temp['cal_row_end'];
242
 
                        $out .= "\n";
243
 
                }
244
 
 
245
 
                $out .= "\n";
246
 
                $out .= $this->temp['table_close'];
247
 
 
248
 
                return $out;
249
 
        }
250
 
 
251
 
        // --------------------------------------------------------------------
252
 
 
253
 
        /**
254
 
         * Get Month Name
255
 
         *
256
 
         * Generates a textual month name based on the numeric
257
 
         * month provided.
258
 
         *
259
 
         * @access      public
260
 
         * @param       integer the month
261
 
         * @return      string
262
 
         */
263
 
        function get_month_name($month)
264
 
        {
265
 
                if ($this->month_type == 'short')
266
 
                {
267
 
                        $month_names = array('01' => 'cal_jan', '02' => 'cal_feb', '03' => 'cal_mar', '04' => 'cal_apr', '05' => 'cal_may', '06' => 'cal_jun', '07' => 'cal_jul', '08' => 'cal_aug', '09' => 'cal_sep', '10' => 'cal_oct', '11' => 'cal_nov', '12' => 'cal_dec');
268
 
                }
269
 
                else
270
 
                {
271
 
                        $month_names = array('01' => 'cal_january', '02' => 'cal_february', '03' => 'cal_march', '04' => 'cal_april', '05' => 'cal_mayl', '06' => 'cal_june', '07' => 'cal_july', '08' => 'cal_august', '09' => 'cal_september', '10' => 'cal_october', '11' => 'cal_november', '12' => 'cal_december');
272
 
                }
273
 
 
274
 
                $month = $month_names[$month];
275
 
 
276
 
                if ($this->CI->lang->line($month) === FALSE)
277
 
                {
278
 
                        return ucfirst(str_replace('cal_', '', $month));
279
 
                }
280
 
 
281
 
                return $this->CI->lang->line($month);
282
 
        }
283
 
 
284
 
        // --------------------------------------------------------------------
285
 
 
286
 
        /**
287
 
         * Get Day Names
288
 
         *
289
 
         * Returns an array of day names (Sunday, Monday, etc.) based
290
 
         * on the type.  Options: long, short, abrev
291
 
         *
292
 
         * @access      public
293
 
         * @param       string
294
 
         * @return      array
295
 
         */
296
 
        function get_day_names($day_type = '')
297
 
        {
298
 
                if ($day_type != '')
299
 
                        $this->day_type = $day_type;
300
 
 
301
 
                if ($this->day_type == 'long')
302
 
                {
303
 
                        $day_names = array('sunday', 'monday', 'tuesday', 'wednesday', 'thursday', 'friday', 'saturday');
304
 
                }
305
 
                elseif ($this->day_type == 'short')
306
 
                {
307
 
                        $day_names = array('sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat');
308
 
                }
309
 
                else
310
 
                {
311
 
                        $day_names = array('su', 'mo', 'tu', 'we', 'th', 'fr', 'sa');
312
 
                }
313
 
 
314
 
                $days = array();
315
 
                foreach ($day_names as $val)
316
 
                {
317
 
                        $days[] = ($this->CI->lang->line('cal_'.$val) === FALSE) ? ucfirst($val) : $this->CI->lang->line('cal_'.$val);
318
 
                }
319
 
 
320
 
                return $days;
321
 
        }
322
 
 
323
 
        // --------------------------------------------------------------------
324
 
 
325
 
        /**
326
 
         * Adjust Date
327
 
         *
328
 
         * This function makes sure that we have a valid month/year.
329
 
         * For example, if you submit 13 as the month, the year will
330
 
         * increment and the month will become January.
331
 
         *
332
 
         * @access      public
333
 
         * @param       integer the month
334
 
         * @param       integer the year
335
 
         * @return      array
336
 
         */
337
 
        function adjust_date($month, $year)
338
 
        {
339
 
                $date = array();
340
 
 
341
 
                $date['month']  = $month;
342
 
                $date['year']   = $year;
343
 
 
344
 
                while ($date['month'] > 12)
345
 
                {
346
 
                        $date['month'] -= 12;
347
 
                        $date['year']++;
348
 
                }
349
 
 
350
 
                while ($date['month'] <= 0)
351
 
                {
352
 
                        $date['month'] += 12;
353
 
                        $date['year']--;
354
 
                }
355
 
 
356
 
                if (strlen($date['month']) == 1)
357
 
                {
358
 
                        $date['month'] = '0'.$date['month'];
359
 
                }
360
 
 
361
 
                return $date;
362
 
        }
363
 
 
364
 
        // --------------------------------------------------------------------
365
 
 
366
 
        /**
367
 
         * Total days in a given month
368
 
         *
369
 
         * @access      public
370
 
         * @param       integer the month
371
 
         * @param       integer the year
372
 
         * @return      integer
373
 
         */
374
 
        function get_total_days($month, $year)
375
 
        {
376
 
                $days_in_month  = array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
377
 
 
378
 
                if ($month < 1 OR $month > 12)
379
 
                {
380
 
                        return 0;
381
 
                }
382
 
 
383
 
                // Is the year a leap year?
384
 
                if ($month == 2)
385
 
                {
386
 
                        if ($year % 400 == 0 OR ($year % 4 == 0 AND $year % 100 != 0))
387
 
                        {
388
 
                                return 29;
389
 
                        }
390
 
                }
391
 
 
392
 
                return $days_in_month[$month - 1];
393
 
        }
394
 
 
395
 
        // --------------------------------------------------------------------
396
 
 
397
 
        /**
398
 
         * Set Default Template Data
399
 
         *
400
 
         * This is used in the event that the user has not created their own template
401
 
         *
402
 
         * @access      public
403
 
         * @return array
404
 
         */
405
 
        function default_template()
406
 
        {
407
 
                return  array (
408
 
                                                'table_open'                            => '<table border="0" cellpadding="4" cellspacing="0">',
409
 
                                                'heading_row_start'                     => '<tr>',
410
 
                                                'heading_previous_cell'         => '<th><a href="{previous_url}">&lt;&lt;</a></th>',
411
 
                                                'heading_title_cell'            => '<th colspan="{colspan}">{heading}</th>',
412
 
                                                'heading_next_cell'                     => '<th><a href="{next_url}">&gt;&gt;</a></th>',
413
 
                                                'heading_row_end'                       => '</tr>',
414
 
                                                'week_row_start'                        => '<tr>',
415
 
                                                'week_day_cell'                         => '<td>{week_day}</td>',
416
 
                                                'week_row_end'                          => '</tr>',
417
 
                                                'cal_row_start'                         => '<tr>',
418
 
                                                'cal_cell_start'                        => '<td>',
419
 
                                                'cal_cell_start_today'          => '<td>',
420
 
                                                'cal_cell_content'                      => '<a href="{content}">{day}</a>',
421
 
                                                'cal_cell_content_today'        => '<a href="{content}"><strong>{day}</strong></a>',
422
 
                                                'cal_cell_no_content'           => '{day}',
423
 
                                                'cal_cell_no_content_today'     => '<strong>{day}</strong>',
424
 
                                                'cal_cell_blank'                        => '&nbsp;',
425
 
                                                'cal_cell_end'                          => '</td>',
426
 
                                                'cal_cell_end_today'            => '</td>',
427
 
                                                'cal_row_end'                           => '</tr>',
428
 
                                                'table_close'                           => '</table>'
429
 
                                        );
430
 
        }
431
 
 
432
 
        // --------------------------------------------------------------------
433
 
 
434
 
        /**
435
 
         * Parse Template
436
 
         *
437
 
         * Harvests the data within the template {pseudo-variables}
438
 
         * used to display the calendar
439
 
         *
440
 
         * @access      public
441
 
         * @return      void
442
 
         */
443
 
        function parse_template()
444
 
        {
445
 
                $this->temp = $this->default_template();
446
 
 
447
 
                if ($this->template == '')
448
 
                {
449
 
                        return;
450
 
                }
451
 
 
452
 
                $today = array('cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today');
453
 
 
454
 
                foreach (array('table_open', 'table_close', 'heading_row_start', 'heading_previous_cell', 'heading_title_cell', 'heading_next_cell', 'heading_row_end', 'week_row_start', 'week_day_cell', 'week_row_end', 'cal_row_start', 'cal_cell_start', 'cal_cell_content', 'cal_cell_no_content',  'cal_cell_blank', 'cal_cell_end', 'cal_row_end', 'cal_cell_start_today', 'cal_cell_content_today', 'cal_cell_no_content_today', 'cal_cell_end_today') as $val)
455
 
                {
456
 
                        if (preg_match("/\{".$val."\}(.*?)\{\/".$val."\}/si", $this->template, $match))
457
 
                        {
458
 
                                $this->temp[$val] = $match['1'];
459
 
                        }
460
 
                        else
461
 
                        {
462
 
                                if (in_array($val, $today, TRUE))
463
 
                                {
464
 
                                        $this->temp[$val] = $this->temp[str_replace('_today', '', $val)];
465
 
                                }
466
 
                        }
467
 
                }
468
 
        }
469
 
 
470
 
}
471
 
 
472
 
// END CI_Calendar class
473
 
 
474
 
/* End of file Calendar.php */
475
 
/* Location: ./system/libraries/Calendar.php */
 
 
b'\\ No newline at end of file'