Proyectos de Subversion Moodle

Rev

| Ultima modificación | Ver Log |

Rev Autor Línea Nro. Línea
1 efrain 1
<?php
2
// This file is part of Moodle - http://moodle.org/
3
//
4
// Moodle is free software: you can redistribute it and/or modify
5
// it under the terms of the GNU General Public License as published by
6
// the Free Software Foundation, either version 3 of the License, or
7
// (at your option) any later version.
8
//
9
// Moodle is distributed in the hope that it will be useful,
10
// but WITHOUT ANY WARRANTY; without even the implied warranty of
11
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12
// GNU General Public License for more details.
13
//
14
// You should have received a copy of the GNU General Public License
15
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
16
 
17
/**
18
 * Front-end class.
19
 *
20
 * @package availability_date
21
 * @copyright 2014 The Open University
22
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
23
 */
24
 
25
namespace availability_date;
26
 
27
defined('MOODLE_INTERNAL') || die();
28
 
29
/**
30
 * Front-end class.
31
 *
32
 * @package availability_date
33
 * @copyright 2014 The Open University
34
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
35
 */
36
class frontend extends \core_availability\frontend {
37
    /**
38
     * The date selector popup is not currently supported because the date
39
     * selector is in a messy state (about to be replaced with a new YUI3
40
     * implementation) and MDL-44814 was rejected. I have left the code in
41
     * place, but disabled. When the date selector situation is finalised,
42
     * then this constant should be removed (either applying MDL-44814 if old
43
     * selector is still in use, or modifying the JavaScript code to support the
44
     * new date selector if it has landed).
45
     *
46
     * @var bool
47
     */
48
    const DATE_SELECTOR_SUPPORTED = false;
49
 
50
    protected function get_javascript_strings() {
51
        return array('ajaxerror', 'direction_before', 'direction_from', 'direction_until',
52
                'direction_label', 'error_dateconflict');
53
    }
54
 
55
    /**
56
     * Given field values, obtains the corresponding timestamp.
57
     *
58
     * @param int $year Year
59
     * @param int $month Month
60
     * @param int $day Day
61
     * @param int $hour Hour
62
     * @param int $minute Minute
63
     * @return int Timestamp
64
     */
65
    public static function get_time_from_fields($year, $month, $day, $hour, $minute) {
66
        $calendartype = \core_calendar\type_factory::get_calendar_instance();
67
        $gregoriandate = $calendartype->convert_to_gregorian(
68
                $year, $month, $day, $hour, $minute);
69
        return make_timestamp($gregoriandate['year'], $gregoriandate['month'],
70
                $gregoriandate['day'], $gregoriandate['hour'], $gregoriandate['minute'], 0);
71
    }
72
 
73
    /**
74
     * Given a timestamp, obtains corresponding field values.
75
     *
76
     * @param int $time Timestamp
77
     * @return \stdClass Object with fields for year, month, day, hour, minute
78
     */
79
    public static function get_fields_from_time($time) {
80
        $calendartype = \core_calendar\type_factory::get_calendar_instance();
81
        $wrongfields = $calendartype->timestamp_to_date_array($time);
82
        return array('day' => $wrongfields['mday'],
83
                'month' => $wrongfields['mon'], 'year' => $wrongfields['year'],
84
                'hour' => $wrongfields['hours'], 'minute' => $wrongfields['minutes']);
85
    }
86
 
87
    protected function get_javascript_init_params($course, \cm_info $cm = null,
88
            \section_info $section = null) {
89
        global $CFG, $OUTPUT;
90
        require_once($CFG->libdir . '/formslib.php');
91
 
92
        // Support internationalised calendars.
93
        $calendartype = \core_calendar\type_factory::get_calendar_instance();
94
 
95
        // Get current date, but set time to 00:00 (to make it easier to
96
        // specify whole days) and change name of mday field to match below.
97
        $wrongfields = $calendartype->timestamp_to_date_array(time());
98
        $current = array('day' => $wrongfields['mday'],
99
                'month' => $wrongfields['mon'], 'year' => $wrongfields['year'],
100
                'hour' => 0, 'minute' => 0);
101
 
102
        // Time part is handled the same everywhere.
103
        $hours = array();
104
        for ($i = 0; $i <= 23; $i++) {
105
            $hours[$i] = sprintf("%02d", $i);
106
        }
107
        $minutes = array();
108
        for ($i = 0; $i < 60; $i += 5) {
109
            $minutes[$i] = sprintf("%02d", $i);
110
        }
111
 
112
        // List date fields.
113
        $fields = $calendartype->get_date_order(
114
                $calendartype->get_min_year(), $calendartype->get_max_year());
115
 
116
        // Add time fields - in RTL mode these are switched.
117
        $fields['split'] = '/';
118
        if (right_to_left()) {
119
            $fields['minute'] = $minutes;
120
            $fields['colon'] = ':';
121
            $fields['hour'] = $hours;
122
        } else {
123
            $fields['hour'] = $hours;
124
            $fields['colon'] = ':';
125
            $fields['minute'] = $minutes;
126
        }
127
 
128
        // Output all date fields.
129
        $html = '<span class="availability-group">';
130
        foreach ($fields as $field => $options) {
131
            if ($options === '/') {
132
                $html = rtrim($html);
133
 
134
                // In Gregorian calendar mode only, we support a date selector popup, reusing
135
                // code from form to ensure consistency.
136
                if ($calendartype->get_name() === 'gregorian' && self::DATE_SELECTOR_SUPPORTED) {
137
                    $image = $OUTPUT->pix_icon('i/calendar', get_string('calendar', 'calendar'), 'moodle');
138
                    $html .= ' ' . \html_writer::link('#', $image, array('name' => 'x[calendar]'));
139
                    form_init_date_js();
140
                }
141
 
142
                $html .= '</span> <span class="availability-group">';
143
                continue;
144
            }
145
            if ($options === ':') {
146
                $html .= ': ';
147
                continue;
148
            }
149
            $html .= \html_writer::start_tag('label');
150
            $html .= \html_writer::span(get_string($field) . ' ', 'accesshide');
151
            // NOTE: The fields need to have these weird names in order that they
152
            // match the standard Moodle form control, otherwise the date selector
153
            // won't find them.
154
            $html .= \html_writer::start_tag('select', array('name' => 'x[' . $field . ']', 'class' => 'custom-select'));
155
            foreach ($options as $key => $value) {
156
                $params = array('value' => $key);
157
                if ($current[$field] == $key) {
158
                    $params['selected'] = 'selected';
159
                }
160
                $html .= \html_writer::tag('option', s($value), $params);
161
            }
162
            $html .= \html_writer::end_tag('select');
163
            $html .= \html_writer::end_tag('label');
164
            $html .= ' ';
165
        }
166
        $html = rtrim($html) . '</span>';
167
 
168
        // Also get the time that corresponds to this default date.
169
        $time = self::get_time_from_fields($current['year'], $current['month'],
170
                $current['day'], $current['hour'], $current['minute']);
171
 
172
        return array($html, $time);
173
    }
174
}