1<?php
2/**
3 * Widget API: WP_Widget_Meta class
4 *
5 * @package WordPress
6 * @subpackage Widgets
7 * @since 4.4.0
8 */
9
10/**
11 * Core class used to implement a Meta widget.
12 *
13 * Displays log in/out, RSS feed links, etc.
14 *
15 * @since 2.8.0
16 *
17 * @see WP_Widget
18 */
19class WP_Widget_Meta extends WP_Widget {
20
21 /**
22 * Sets up a new Meta widget instance.
23 *
24 * @since 2.8.0
25 */
26 public function __construct() {
27 $widget_ops = array(
28 'classname' => 'widget_meta',
29 'description' => __( 'Login, RSS, & WordPress.org links.' ),
30 'customize_selective_refresh' => true,
31 'show_instance_in_rest' => true,
32 );
33 parent::__construct( 'meta', __( 'Meta' ), $widget_ops );
34 }
35
36 /**
37 * Outputs the content for the current Meta widget instance.
38 *
39 * @since 2.8.0
40 *
41 * @param array $args Display arguments including 'before_title', 'after_title',
42 * 'before_widget', and 'after_widget'.
43 * @param array $instance Settings for the current Meta widget instance.
44 */
45 public function widget( $args, $instance ) {
46 $default_title = __( 'Meta' );
47 $title = ! empty( $instance['title'] ) ? $instance['title'] : $default_title;
48
49 /** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
50 $title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
51
52 echo $args['before_widget'];
53
54 if ( $title ) {
55 echo $args['before_title'] . $title . $args['after_title'];
56 }
57
58 $format = current_theme_supports( 'html5', 'navigation-widgets' ) ? 'html5' : 'xhtml';
59
60 /** This filter is documented in wp-includes/widgets/class-wp-nav-menu-widget.php */
61 $format = apply_filters( 'navigation_widgets_format', $format );
62
63 if ( 'html5' === $format ) {
64 // The title may be filtered: Strip out HTML and make sure the aria-label is never empty.
65 $title = trim( strip_tags( $title ) );
66 $aria_label = $title ? $title : $default_title;
67 echo '<nav aria-label="' . esc_attr( $aria_label ) . '">';
68 }
69 ?>
70
71 <ul>
72 <?php wp_register(); ?>
73 <li><?php wp_loginout(); ?></li>
74 <li><a href="<?php echo esc_url( get_bloginfo( 'rss2_url' ) ); ?>"><?php _e( 'Entries feed' ); ?></a></li>
75 <li><a href="<?php echo esc_url( get_bloginfo( 'comments_rss2_url' ) ); ?>"><?php _e( 'Comments feed' ); ?></a></li>
76
77 <?php
78 /**
79 * Filters the "WordPress.org" list item HTML in the Meta widget.
80 *
81 * @since 3.6.0
82 * @since 4.9.0 Added the `$instance` parameter.
83 *
84 * @param string $html Default HTML for the WordPress.org list item.
85 * @param array $instance Array of settings for the current widget.
86 */
87 echo apply_filters(
88 'widget_meta_poweredby',
89 sprintf(
90 '<li><a href="%1$s">%2$s</a></li>',
91 esc_url( __( 'https://wordpress.org/' ) ),
92 __( 'WordPress.org' )
93 ),
94 $instance
95 );
96
97 wp_meta();
98 ?>
99
100 </ul>
101
102 <?php
103 if ( 'html5' === $format ) {
104 echo '</nav>';
105 }
106
107 echo $args['after_widget'];
108 }
109
110 /**
111 * Handles updating settings for the current Meta widget instance.
112 *
113 * @since 2.8.0
114 *
115 * @param array $new_instance New settings for this instance as input by the user via
116 * WP_Widget::form().
117 * @param array $old_instance Old settings for this instance.
118 * @return array Updated settings to save.
119 */
120 public function update( $new_instance, $old_instance ) {
121 $instance = $old_instance;
122 $instance['title'] = sanitize_text_field( $new_instance['title'] );
123
124 return $instance;
125 }
126
127 /**
128 * Outputs the settings form for the Meta widget.
129 *
130 * @since 2.8.0
131 *
132 * @param array $instance Current settings.
133 */
134 public function form( $instance ) {
135 $instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
136 ?>
137 <p>
138 <label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
139 <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'] ); ?>" />
140 </p>
141 <?php
142 }
143}
144