<?php
/**
* Widget API: WP_Widget_Links class
*
* @package WordPress
* @subpackage Widgets
* @since 4.4.0
*/
/**
* Core class used to implement a Links widget.
*
* @since 2.8.0
*
* @see WP_Widget
*/
class WP_Widget_Links extends WP_Widget {
/**
* Sets up a new Links widget instance.
*
* @since 2.8.0
*/
public function __construct() {
$widget_ops = array(
'description' => __( 'Your blogroll' ),
'customize_selective_refresh' => true,
);
parent::__construct( 'links', __( 'Links' ), $widget_ops );
}
/**
* Outputs the content for the current Links widget instance.
*
* @since 2.8.0
*
* @param array $args Display arguments including 'before_title', 'after_title',
* 'before_widget', and 'after_widget'.
* @param array $instance Settings for the current Links widget instance.
*/
public function widget( $args, $instance ) {
$show_description = $instance['description'] ?? false;
$show_name = $instance['name'] ?? false;
$show_rating = $instance['rating'] ?? false;
$show_images = $instance['images'] ?? true;
$category = $instance['category'] ?? false;
$orderby = $instance['orderby'] ?? 'name';
$order = 'rating' === $orderby ? 'DESC' : 'ASC';
$limit = $instance['limit'] ?? -1;
$before_widget = preg_replace( '/ id="[^"]*"/', ' id="%id"', $args['before_widget'] );
$widget_links_args = array(
'title_before' => $args['before_title'],
'title_after' => $args['after_title'],
'category_before' => $before_widget,
'category_after' => $args['after_widget'],
'show_images' => $show_images,
'show_description' => $show_description,
'show_name' => $show_name,
'show_rating' => $show_rating,
'category' => $category,
'class' => 'linkcat widget',
'orderby' => $orderby,
'order' => $order,
'limit' => $limit,
);
/**
* Filters the arguments for the Links widget.
*
* @since 2.6.0
* @since 4.4.0 Added the `$instance` parameter.
*
* @see wp_list_bookmarks()
*
* @param array $widget_links_args An array of arguments to retrieve the links list.
* @param array $instance The settings for the particular instance of the widget.
*/
wp_list_bookmarks( apply_filters( 'widget_links_args', $widget_links_args, $instance ) );
}
/**
* Handles updating settings for the current Links widget instance.
*
* @since 2.8.0
*
* @param array $new_instance New settings for this instance as input by the user via
* WP_Widget::form().
* @param array $old_instance Old settings for this instance.
* @return array Updated settings to save.
*/
public function update( $new_instance, $old_instance ) {
$new_instance = (array) $new_instance;
$instance = array(
'images' => 0,
'name' => 0,
'description' => 0,
'rating' => 0,
);
foreach ( $instance as $field => $val ) {
if ( isset( $new_instance[ $field ] ) ) {
$instance[ $field ] = 1;
}
}
$instance['orderby'] = 'name';
if ( in_array( $new_instance['orderby'], array( 'name', 'rating', 'id', 'rand' ), true ) ) {
$instance['orderby'] = $new_instance['orderby'];
}
$instance['category'] = (int) $new_instance['category'];
$instance['limit'] = ! empty( $new_instance['limit'] ) ? (int) $new_instance['limit'] : -1;
return $instance;
}
/**
* Outputs the settings form for the Links widget.
*
* @since 2.8.0
*
* @param array $instance Current settings.
*/
public function form( $instance ) {
// Defaults.
$instance = wp_parse_args(
(array) $instance,
array(
'images' => true,
'name' => true,
'description' => false,
'rating' => false,
'category' => false,
'orderby' => 'name',
'limit' => -1,
)
);
$link_cats = get_terms( array( 'taxonomy' => 'link_category' ) );
$limit = (int) $instance['limit'];
if ( ! $limit ) {
$limit = -1;
}
?>
<p>
<label for="<?php echo $this->get_field_id( 'category' ); ?>"><?php _e( 'Select Link Category:' ); ?></label>
<select class="widefat" id="<?php echo $this->get_field_id( 'category' ); ?>" name="<?php echo $this->get_field_name( 'category' ); ?>">
<option value=""><?php _ex( 'All Links', 'links widget' ); ?></option>
<?php foreach ( $link_cats as $link_cat ) : ?>
<option value="<?php echo (int) $link_cat->term_id; ?>" <?php selected( $instance['category'], $link_cat->term_id ); ?>>
<?php echo esc_html( $link_cat->name ); ?>
</option>
<?php endforeach; ?>
</select>
<label for="<?php echo $this->get_field_id( 'orderby' ); ?>"><?php _e( 'Sort by:' ); ?></label>
<select name="<?php echo $this->get_field_name( 'orderby' ); ?>" id="<?php echo $this->get_field_id( 'orderby' ); ?>" class="widefat">
<option value="name"<?php selected( $instance['orderby'], 'name' ); ?>><?php _e( 'Link title' ); ?></option>
<option value="rating"<?php selected( $instance['orderby'], 'rating' ); ?>><?php _e( 'Link rating' ); ?></option>
<option value="id"<?php selected( $instance['orderby'], 'id' ); ?>><?php _e( 'Link ID' ); ?></option>
<option value="rand"<?php selected( $instance['orderby'], 'rand' ); ?>><?php _ex( 'Random', 'Links widget' ); ?></option>
</select>
</p>
<p>
<input class="checkbox" type="checkbox"<?php checked( $instance['images'], true ); ?> id="<?php echo $this->get_field_id( 'images' ); ?>" name="<?php echo $this->get_field_name( 'images' ); ?>" />
<label for="<?php echo $this->get_field_id( 'images' ); ?>"><?php _e( 'Show Link Image' ); ?></label>
<br />
<input class="checkbox" type="checkbox"<?php checked( $instance['name'], true ); ?> id="<?php echo $this->get_field_id( 'name' ); ?>" name="<?php echo $this->get_field_name( 'name' ); ?>" />
<label for="<?php echo $this->get_field_id( 'name' ); ?>"><?php _e( 'Show Link Name' ); ?></label>
<br />
<input class="checkbox" type="checkbox"<?php checked( $instance['description'], true ); ?> id="<?php echo $this->get_field_id( 'description' ); ?>" name="<?php echo $this->get_field_name( 'description' ); ?>" />
<label for="<?php echo $this->get_field_id( 'description' ); ?>"><?php _e( 'Show Link Description' ); ?></label>
<br />
<input class="checkbox" type="checkbox"<?php checked( $instance['rating'], true ); ?> id="<?php echo $this->get_field_id( 'rating' ); ?>" name="<?php echo $this->get_field_name( 'rating' ); ?>" />
<label for="<?php echo $this->get_field_id( 'rating' ); ?>"><?php _e( 'Show Link Rating' ); ?></label>
</p>
<p>
<label for="<?php echo $this->get_field_id( 'limit' ); ?>"><?php _e( 'Number of links to show:' ); ?></label>
<input id="<?php echo $this->get_field_id( 'limit' ); ?>" name="<?php echo $this->get_field_name( 'limit' ); ?>" type="text" value="<?php echo ( -1 !== $limit ) ? (int) $limit : ''; ?>" size="3" />
</p>
<?php
}
}