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<?php
/**
* Disable direct access/execution to/of the widget code.
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Widget to display blog authors with avatars and recent posts.
*
* Configurable parameters include:
* 1. Whether to display authors who haven't written any posts
* 2. The number of posts to be displayed per author (defaults to 0)
* 3. Avatar size
*
* @since 4.5.0
*/
class Jetpack_Widget_Authors extends WP_Widget {
public function __construct() {
parent::__construct(
'authors',
/** This filter is documented in modules/widgets/facebook-likebox.php */
apply_filters( 'jetpack_widget_name', __( 'Authors', 'jetpack' ) ),
array(
'classname' => 'widget_authors',
'description' => __( 'Display blogs authors with avatars and recent posts.', 'jetpack' ),
'customize_selective_refresh' => true,
)
);
if ( is_active_widget( false, false, $this->id_base ) || is_active_widget( false, false, 'monster' ) || is_customize_preview() ) {
add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_style' ) );
}
add_action( 'publish_post', array( __CLASS__, 'flush_cache' ) );
add_action( 'deleted_post', array( __CLASS__, 'flush_cache' ) );
add_action( 'switch_theme', array( __CLASS__, 'flush_cache' ) );
}
/**
* Enqueue stylesheet to adapt the widget to various themes.
*
* @since 4.5.0
*/
function enqueue_style() {
wp_register_style( 'jetpack-authors-widget', plugins_url( 'authors/style.css', __FILE__ ), array(), '20161228' );
wp_enqueue_style( 'jetpack-authors-widget' );
}
public static function flush_cache() {
wp_cache_delete( 'widget_authors', 'widget' );
wp_cache_delete( 'widget_authors_ssl', 'widget' );
}
public function widget( $args, $instance ) {
$cache_bucket = is_ssl() ? 'widget_authors_ssl' : 'widget_authors';
if ( '%BEG_OF_TITLE%' != $args['before_title'] ) {
if ( $output = wp_cache_get( $cache_bucket, 'widget' ) ) {
echo $output;
return;
}
ob_start();
}
$instance = wp_parse_args(
$instance, array(
'title' => __( 'Authors', 'jetpack' ),
'all' => false,
'number' => 5,
'avatar_size' => 48,
)
);
$instance['number'] = min( 10, max( 0, (int) $instance['number'] ) );
// We need to query at least one post to determine whether an author has written any posts or not
$query_number = max( $instance['number'], 1 );
$default_excluded_authors = array();
/**
* Filter authors from the Widget Authors widget.
*
* @module widgets
*
* @since 4.5.0
*
* @param array $default_excluded_authors Array of user ID's that will be excluded
*/
$excluded_authors = apply_filters( 'jetpack_widget_authors_exclude', $default_excluded_authors );
$authors = get_users(
array(
'fields' => 'all',
'who' => 'authors',
'exclude' => (array) $excluded_authors,
)
);
echo $args['before_widget'];
/** This filter is documented in core/src/wp-includes/default-widgets.php */
$title = apply_filters( 'widget_title', $instance['title'] );
echo $args['before_title'] . esc_html( $title ) . $args['after_title'];
echo '<ul>';
$default_post_type = 'post';
/**
* Filter types of posts that will be counted in the widget
*
* @module widgets
*
* @since 4.5.0
*
* @param string|array $default_post_type type(s) of posts to count for the widget.
*/
$post_types = apply_filters( 'jetpack_widget_authors_post_types', $default_post_type );
foreach ( $authors as $author ) {
$r = new WP_Query(
array(
'author' => $author->ID,
'posts_per_page' => $query_number,
'post_type' => $post_types,
'post_status' => 'publish',
'no_found_rows' => true,
'has_password' => false,
)
);
if ( ! $r->have_posts() && ! $instance['all'] ) {
continue;
}
echo '<li>';
// Display avatar and author name
if ( $r->have_posts() ) {
echo '<a href="' . get_author_posts_url( $author->ID ) . '">';
if ( $instance['avatar_size'] > 1 ) {
echo ' ' . get_avatar( $author->ID, $instance['avatar_size'], '', true ) . ' ';
}
echo '<strong>' . esc_html( $author->display_name ) . '</strong>';
echo '</a>';
} elseif ( $instance['all'] ) {
if ( $instance['avatar_size'] > 1 ) {
echo get_avatar( $author->ID, $instance['avatar_size'], '', true ) . ' ';
}
echo '<strong>' . esc_html( $author->display_name ) . '</strong>';
}
if ( 0 == $instance['number'] ) {
echo '</li>';
continue;
}
// Display a short list of recent posts for this author
if ( $r->have_posts() ) {
echo '<ul>';
while ( $r->have_posts() ) {
$r->the_post();
echo '<li><a href="' . get_permalink() . '">';
if ( get_the_title() ) {
echo get_the_title();
} else {
echo get_the_ID();
}
echo '</a></li>';
}
echo '</ul>';
}
echo '</li>';
}
echo '</ul>';
echo $args['after_widget'];
wp_reset_postdata();
if ( '%BEG_OF_TITLE%' != $args['before_title'] ) {
wp_cache_add( $cache_bucket, ob_get_flush(), 'widget' );
}
/** This action is documented in modules/widgets/gravatar-profile.php */
do_action( 'jetpack_stats_extra', 'widget_view', 'authors' );
}
public function form( $instance ) {
$instance = wp_parse_args(
$instance, array(
'title' => '',
'all' => false,
'avatar_size' => 48,
'number' => 5,
)
);
?>
<p>
<label>
<?php _e( 'Title:', 'jetpack' ); ?>
<input class="widefat" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" />
</label>
</p>
<p>
<label>
<input class="checkbox" type="checkbox" <?php checked( $instance['all'] ); ?> name="<?php echo $this->get_field_name( 'all' ); ?>" />
<?php _e( 'Display all authors (including those who have not written any posts)', 'jetpack' ); ?>
</label>
</p>
<p>
<label>
<?php _e( 'Number of posts to show for each author:', 'jetpack' ); ?>
<input style="width: 50px; text-align: center;" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo esc_attr( $instance['number'] ); ?>" />
<?php _e( '(at most 10)', 'jetpack' ); ?>
</label>
</p>
<p>
<label>
<?php _e( 'Avatar Size (px):', 'jetpack' ); ?>
<select name="<?php echo $this->get_field_name( 'avatar_size' ); ?>">
<?php
foreach ( array(
'1' => __( 'No Avatars', 'jetpack' ),
'16' => '16x16',
'32' => '32x32',
'48' => '48x48',
'96' => '96x96',
'128' => '128x128',
) as $value => $label ) {
?>
<option value="<?php echo esc_attr( $value ); ?>" <?php selected( $value, $instance['avatar_size'] ); ?>><?php echo esc_html( $label ); ?></option>
<?php } ?>
</select>
</label>
</p>
<?php
}
/**
* Updates the widget on save and flushes cache.
*
* @param array $new_instance
* @param array $old_instance
* @return array
*/
public function update( $new_instance, $old_instance ) {
$new_instance['title'] = strip_tags( $new_instance['title'] );
$new_instance['all'] = isset( $new_instance['all'] );
$new_instance['number'] = (int) $new_instance['number'];
$new_instance['avatar_size'] = (int) $new_instance['avatar_size'];
Jetpack_Widget_Authors::flush_cache();
return $new_instance;
}
}
add_action( 'widgets_init', 'jetpack_register_widget_authors' );
function jetpack_register_widget_authors() {
register_widget( 'Jetpack_Widget_Authors' );
};
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