authors.php
| 1 | <?php |
| 2 | /** |
| 3 | * Disable direct access/execution to/of the widget code. |
| 4 | */ |
| 5 | if ( ! defined( 'ABSPATH' ) ) { |
| 6 | exit; |
| 7 | } |
| 8 | |
| 9 | /** |
| 10 | * Widget to display blog authors with avatars and recent posts. |
| 11 | * |
| 12 | * Configurable parameters include: |
| 13 | * 1. Whether to display authors who haven't written any posts |
| 14 | * 2. The number of posts to be displayed per author (defaults to 0) |
| 15 | * 3. Avatar size |
| 16 | * |
| 17 | * @since 4.5.0 |
| 18 | */ |
| 19 | class Jetpack_Widget_Authors extends WP_Widget { |
| 20 | public function __construct() { |
| 21 | parent::__construct( |
| 22 | 'authors', |
| 23 | /** This filter is documented in modules/widgets/facebook-likebox.php */ |
| 24 | apply_filters( 'jetpack_widget_name', __( 'Authors', 'jetpack' ) ), |
| 25 | array( |
| 26 | 'classname' => 'widget_authors', |
| 27 | 'description' => __( 'Display blogs authors with avatars and recent posts.', 'jetpack' ), |
| 28 | 'customize_selective_refresh' => true, |
| 29 | ) |
| 30 | ); |
| 31 | |
| 32 | if ( is_active_widget( false, false, $this->id_base ) || is_active_widget( false, false, 'monster' ) || is_customize_preview() ) { |
| 33 | add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_style' ) ); |
| 34 | } |
| 35 | |
| 36 | add_action( 'publish_post', array( __CLASS__, 'flush_cache' ) ); |
| 37 | add_action( 'deleted_post', array( __CLASS__, 'flush_cache' ) ); |
| 38 | add_action( 'switch_theme', array( __CLASS__, 'flush_cache' ) ); |
| 39 | } |
| 40 | |
| 41 | /** |
| 42 | * Enqueue stylesheet to adapt the widget to various themes. |
| 43 | * |
| 44 | * @since 4.5.0 |
| 45 | */ |
| 46 | function enqueue_style() { |
| 47 | wp_register_style( 'jetpack-authors-widget', plugins_url( 'authors/style.css', __FILE__ ), array(), '20161228' ); |
| 48 | wp_enqueue_style( 'jetpack-authors-widget' ); |
| 49 | } |
| 50 | |
| 51 | public static function flush_cache() { |
| 52 | wp_cache_delete( 'widget_authors', 'widget' ); |
| 53 | wp_cache_delete( 'widget_authors_ssl', 'widget' ); |
| 54 | } |
| 55 | |
| 56 | public function widget( $args, $instance ) { |
| 57 | $cache_bucket = is_ssl() ? 'widget_authors_ssl' : 'widget_authors'; |
| 58 | |
| 59 | if ( '%BEG_OF_TITLE%' != $args['before_title'] ) { |
| 60 | if ( $output = wp_cache_get( $cache_bucket, 'widget' ) ) { |
| 61 | echo $output; |
| 62 | return; |
| 63 | } |
| 64 | |
| 65 | ob_start(); |
| 66 | } |
| 67 | |
| 68 | $instance = wp_parse_args( |
| 69 | $instance, array( |
| 70 | 'title' => __( 'Authors', 'jetpack' ), |
| 71 | 'all' => false, |
| 72 | 'number' => 5, |
| 73 | 'avatar_size' => 48, |
| 74 | ) |
| 75 | ); |
| 76 | $instance['number'] = min( 10, max( 0, (int) $instance['number'] ) ); |
| 77 | |
| 78 | // We need to query at least one post to determine whether an author has written any posts or not |
| 79 | $query_number = max( $instance['number'], 1 ); |
| 80 | |
| 81 | $default_excluded_authors = array(); |
| 82 | /** |
| 83 | * Filter authors from the Widget Authors widget. |
| 84 | * |
| 85 | * @module widgets |
| 86 | * |
| 87 | * @since 4.5.0 |
| 88 | * |
| 89 | * @param array $default_excluded_authors Array of user ID's that will be excluded |
| 90 | */ |
| 91 | $excluded_authors = apply_filters( 'jetpack_widget_authors_exclude', $default_excluded_authors ); |
| 92 | |
| 93 | $authors = get_users( |
| 94 | array( |
| 95 | 'fields' => 'all', |
| 96 | 'who' => 'authors', |
| 97 | 'exclude' => (array) $excluded_authors, |
| 98 | ) |
| 99 | ); |
| 100 | |
| 101 | echo $args['before_widget']; |
| 102 | /** This filter is documented in core/src/wp-includes/default-widgets.php */ |
| 103 | $title = apply_filters( 'widget_title', $instance['title'] ); |
| 104 | echo $args['before_title'] . esc_html( $title ) . $args['after_title']; |
| 105 | echo '<ul>'; |
| 106 | |
| 107 | $default_post_type = 'post'; |
| 108 | /** |
| 109 | * Filter types of posts that will be counted in the widget |
| 110 | * |
| 111 | * @module widgets |
| 112 | * |
| 113 | * @since 4.5.0 |
| 114 | * |
| 115 | * @param string|array $default_post_type type(s) of posts to count for the widget. |
| 116 | */ |
| 117 | $post_types = apply_filters( 'jetpack_widget_authors_post_types', $default_post_type ); |
| 118 | |
| 119 | foreach ( $authors as $author ) { |
| 120 | $r = new WP_Query( |
| 121 | array( |
| 122 | 'author' => $author->ID, |
| 123 | 'posts_per_page' => $query_number, |
| 124 | 'post_type' => $post_types, |
| 125 | 'post_status' => 'publish', |
| 126 | 'no_found_rows' => true, |
| 127 | 'has_password' => false, |
| 128 | ) |
| 129 | ); |
| 130 | |
| 131 | if ( ! $r->have_posts() && ! $instance['all'] ) { |
| 132 | continue; |
| 133 | } |
| 134 | |
| 135 | echo '<li>'; |
| 136 | |
| 137 | // Display avatar and author name |
| 138 | if ( $r->have_posts() ) { |
| 139 | echo '<a href="' . get_author_posts_url( $author->ID ) . '">'; |
| 140 | |
| 141 | if ( $instance['avatar_size'] > 1 ) { |
| 142 | echo ' ' . get_avatar( $author->ID, $instance['avatar_size'], '', true ) . ' '; |
| 143 | } |
| 144 | |
| 145 | echo '<strong>' . esc_html( $author->display_name ) . '</strong>'; |
| 146 | echo '</a>'; |
| 147 | } elseif ( $instance['all'] ) { |
| 148 | if ( $instance['avatar_size'] > 1 ) { |
| 149 | echo get_avatar( $author->ID, $instance['avatar_size'], '', true ) . ' '; |
| 150 | } |
| 151 | |
| 152 | echo '<strong>' . esc_html( $author->display_name ) . '</strong>'; |
| 153 | } |
| 154 | |
| 155 | if ( 0 == $instance['number'] ) { |
| 156 | echo '</li>'; |
| 157 | continue; |
| 158 | } |
| 159 | |
| 160 | // Display a short list of recent posts for this author |
| 161 | |
| 162 | if ( $r->have_posts() ) { |
| 163 | echo '<ul>'; |
| 164 | |
| 165 | while ( $r->have_posts() ) { |
| 166 | $r->the_post(); |
| 167 | echo '<li><a href="' . get_permalink() . '">'; |
| 168 | |
| 169 | if ( get_the_title() ) { |
| 170 | echo get_the_title(); |
| 171 | } else { |
| 172 | echo get_the_ID(); |
| 173 | } |
| 174 | |
| 175 | echo '</a></li>'; |
| 176 | } |
| 177 | |
| 178 | echo '</ul>'; |
| 179 | } |
| 180 | |
| 181 | echo '</li>'; |
| 182 | } |
| 183 | |
| 184 | echo '</ul>'; |
| 185 | echo $args['after_widget']; |
| 186 | |
| 187 | wp_reset_postdata(); |
| 188 | |
| 189 | if ( '%BEG_OF_TITLE%' != $args['before_title'] ) { |
| 190 | wp_cache_add( $cache_bucket, ob_get_flush(), 'widget' ); |
| 191 | } |
| 192 | |
| 193 | /** This action is documented in modules/widgets/gravatar-profile.php */ |
| 194 | do_action( 'jetpack_stats_extra', 'widget_view', 'authors' ); |
| 195 | } |
| 196 | |
| 197 | public function form( $instance ) { |
| 198 | $instance = wp_parse_args( |
| 199 | $instance, array( |
| 200 | 'title' => '', |
| 201 | 'all' => false, |
| 202 | 'avatar_size' => 48, |
| 203 | 'number' => 5, |
| 204 | ) |
| 205 | ); |
| 206 | |
| 207 | ?> |
| 208 | <p> |
| 209 | <label> |
| 210 | <?php _e( 'Title:', 'jetpack' ); ?> |
| 211 | <input class="widefat" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" /> |
| 212 | </label> |
| 213 | </p> |
| 214 | <p> |
| 215 | <label> |
| 216 | <input class="checkbox" type="checkbox" <?php checked( $instance['all'] ); ?> name="<?php echo $this->get_field_name( 'all' ); ?>" /> |
| 217 | <?php _e( 'Display all authors (including those who have not written any posts)', 'jetpack' ); ?> |
| 218 | </label> |
| 219 | </p> |
| 220 | <p> |
| 221 | <label> |
| 222 | <?php _e( 'Number of posts to show for each author:', 'jetpack' ); ?> |
| 223 | <input style="width: 50px; text-align: center;" name="<?php echo $this->get_field_name( 'number' ); ?>" type="text" value="<?php echo esc_attr( $instance['number'] ); ?>" /> |
| 224 | <?php _e( '(at most 10)', 'jetpack' ); ?> |
| 225 | </label> |
| 226 | </p> |
| 227 | <p> |
| 228 | <label> |
| 229 | <?php _e( 'Avatar Size (px):', 'jetpack' ); ?> |
| 230 | <select name="<?php echo $this->get_field_name( 'avatar_size' ); ?>"> |
| 231 | <?php |
| 232 | foreach ( array( |
| 233 | '1' => __( 'No Avatars', 'jetpack' ), |
| 234 | '16' => '16x16', |
| 235 | '32' => '32x32', |
| 236 | '48' => '48x48', |
| 237 | '96' => '96x96', |
| 238 | '128' => '128x128', |
| 239 | ) as $value => $label ) { |
| 240 | ?> |
| 241 | <option value="<?php echo esc_attr( $value ); ?>" <?php selected( $value, $instance['avatar_size'] ); ?>><?php echo esc_html( $label ); ?></option> |
| 242 | <?php } ?> |
| 243 | </select> |
| 244 | </label> |
| 245 | </p> |
| 246 | <?php |
| 247 | } |
| 248 | |
| 249 | /** |
| 250 | * Updates the widget on save and flushes cache. |
| 251 | * |
| 252 | * @param array $new_instance |
| 253 | * @param array $old_instance |
| 254 | * @return array |
| 255 | */ |
| 256 | public function update( $new_instance, $old_instance ) { |
| 257 | $new_instance['title'] = strip_tags( $new_instance['title'] ); |
| 258 | $new_instance['all'] = isset( $new_instance['all'] ); |
| 259 | $new_instance['number'] = (int) $new_instance['number']; |
| 260 | $new_instance['avatar_size'] = (int) $new_instance['avatar_size']; |
| 261 | |
| 262 | Jetpack_Widget_Authors::flush_cache(); |
| 263 | |
| 264 | return $new_instance; |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | add_action( 'widgets_init', 'jetpack_register_widget_authors' ); |
| 269 | function jetpack_register_widget_authors() { |
| 270 | register_widget( 'Jetpack_Widget_Authors' ); |
| 271 | }; |
| 272 |