1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
<?php
class Upcoming_Events_Widget extends WP_Widget {
function __construct() {
parent::__construct(
'upcoming_events_widget',
/** This filter is documented in modules/widgets/facebook-likebox.php */
apply_filters( 'jetpack_widget_name', __( 'Upcoming Events', 'jetpack' ) ),
array(
'description' => __( 'Display upcoming events from an iCalendar feed.', 'jetpack' ),
'customize_selective_refresh' => true,
)
);
if ( is_active_widget( false, false, $this->id_base ) ) {
add_action( 'wp_head', array( $this, 'css' ) );
}
}
function css() {
?>
<style type="text/css">
.upcoming-events li {
margin-bottom: 10px;
}
.upcoming-events li span {
display: block;
}
</style>
<?php
}
function form( $instance ) {
$defaults = array(
'title' => __( 'Upcoming Events', 'jetpack' ),
'feed-url' => '',
'count' => 3
);
$instance = array_merge( $defaults, (array) $instance );
?>
<p>
<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:', 'jetpack' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id( 'feed-url' ); ?>"><?php _e( 'iCalendar Feed URL:', 'jetpack' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( 'feed-url' ); ?>" name="<?php echo $this->get_field_name( 'feed-url' ); ?>" type="text" value="<?php echo esc_attr( $instance['feed-url'] ); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id( 'count' ); ?>"><?php _e( 'Items to show:', 'jetpack' ); ?></label>
<select id="<?php echo $this->get_field_id( 'count' ); ?>" name="<?php echo $this->get_field_name( 'count' ); ?>">
<?php $i = 1;
while ( $i <= 10 ) { ?>
<option <?php selected( $instance['count'], $i ) ?>><?php echo $i; ?></option>
<?php $i++; } ?>
<option value="0" <?php selected( $instance['count'], 0 ) ?>><?php _e( 'All' , 'jetpack' ) ?></option>
</select>
</p>
<?php
}
function update( $new_instance, $old_instance ) {
$instance['title'] = strip_tags( $new_instance['title'] );
$instance['feed-url'] = strip_tags( $new_instance['feed-url'] );
$instance['count'] = min( absint( $new_instance['count'] ), 10 ); // 10 or less
return $instance;
}
function widget( $args, $instance ) {
jetpack_require_lib( 'icalendar-reader' );
$ical = new iCalendarReader();
$events = $ical->get_events( $instance['feed-url'], $instance['count'] );
$events = $this->apply_timezone_offset( $events );
$ical->timezone = null;
echo $args['before_widget'];
if ( ! empty( $instance['title'] ) ) {
echo $args['before_title'];
echo esc_html( $instance['title'] );
echo $args['after_title'];
}
if ( ! $events ) : // nothing to display?
?>
<p><?php echo __( 'No upcoming events', 'jetpack' ) ?></p>
<?php
else :
?>
<ul class="upcoming-events">
<?php foreach ( $events as $event ) : ?>
<li>
<strong class="event-summary"><?php echo $ical->escape( stripslashes( $event['SUMMARY'] ) ); ?></strong>
<span class="event-when"><?php echo $ical->formatted_date( $event ); ?></span>
<?php if ( ! empty( $event['LOCATION'] ) ) : ?>
<span class="event-location"><?php echo $ical->escape( stripslashes( $event['LOCATION'] ) ); ?></span>
<?php endif; ?>
<?php if ( ! empty( $event['DESCRIPTION'] ) ) : ?>
<span class="event-description"><?php echo wp_trim_words( $ical->escape( stripcslashes( $event['DESCRIPTION'] ) ) ); ?></span>
<?php endif; ?>
</li>
<?php endforeach; ?>
</ul>
<?php
endif;
echo $args['after_widget'];
/** This action is documented in modules/widgets/gravatar-profile.php */
do_action( 'jetpack_stats_extra', 'widget_view', 'grofile' );
}
function apply_timezone_offset( $events ) {
if ( ! $events ) {
return $events;
}
// get timezone offset from the timezone name.
$timezone_name = get_option( 'timezone_string' );
if ( $timezone_name ) {
$timezone = new DateTimeZone( $timezone_name );
$offset = $timezone->getOffset( new DateTime( 'now', new DateTimeZone( 'UTC' ) ) );
} else {
// fallback - gmt_offset option
$offset = get_option( 'gmt_offset' ) * 3600;
}
// generate a DateInterval object from the timezone offset
$interval_string = sprintf( '%d minutes', $offset / 60 );
$interval = date_interval_create_from_date_string( $interval_string );
$offsetted_events = array();
foreach ( $events as $event ) {
// Don't handle all-day events
if ( 8 < strlen( $event['DTSTART'] ) ) {
$start_time = new DateTime( $event['DTSTART'] );
$start_time->add( $interval );
$end_time = new DateTime( $event['DTEND'] );
$end_time->add( $interval );
$event['DTSTART'] = $start_time->format( 'YmdHis\Z' );
$event['DTEND'] = $end_time->format( 'YmdHis\Z' );
}
$offsetted_events[] = $event;
}
return $offsetted_events;
}
}
function upcoming_events_register_widgets() {
register_widget( 'Upcoming_Events_Widget' );
}
add_action( 'widgets_init', 'upcoming_events_register_widgets' );
|
GitWeb