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| 1 | <?php // phpcs:ignore Squiz.Commenting.FileComment.Missing |
| 2 | |
| 3 | /** |
| 4 | * Widget to display a grid of author avatar images |
| 5 | * Default size is 32px |
| 6 | */ |
| 7 | class Widget_Authors_Grid extends WP_Widget { |
| 8 | /** |
| 9 | * Constructor. |
| 10 | */ |
| 11 | public function __construct() { |
| 12 | parent::__construct( |
| 13 | 'author_grid', |
| 14 | __( 'Author Grid', 'wpcomsh' ), |
| 15 | array( |
| 16 | 'classname' => 'widget_author_grid', |
| 17 | 'description' => __( 'Show a grid of author avatar images.', 'wpcomsh' ), |
| 18 | ) |
| 19 | ); |
| 20 | |
| 21 | add_action( 'publish_post', array( __CLASS__, 'flush_cache' ) ); |
| 22 | add_action( 'deleted_post', array( __CLASS__, 'flush_cache' ) ); |
| 23 | add_action( 'switch_theme', array( __CLASS__, 'flush_cache' ) ); |
| 24 | |
| 25 | add_action( 'customize_controls_print_styles', array( $this, 'form_styles' ) ); |
| 26 | |
| 27 | if ( ! is_admin() && is_active_widget( false, false, 'author_grid' ) ) { |
| 28 | add_action( 'wp_head', array( $this, 'add_styles' ) ); |
| 29 | } |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * Flush cache. |
| 34 | */ |
| 35 | public static function flush_cache() { |
| 36 | wp_cache_delete( 'widget_author_grid', 'widget' ); |
| 37 | wp_cache_delete( 'widget_author_grid_ssl', 'widget' ); |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * Display the widget. |
| 42 | * |
| 43 | * @param array $args Widget arguments. |
| 44 | * @param array $instance Widget instance. |
| 45 | */ |
| 46 | public function widget( $args, $instance ) { |
| 47 | $cache_bucket = is_ssl() ? 'widget_author_grid_ssl' : 'widget_author_grid'; |
| 48 | |
| 49 | if ( '%BEG_OF_TITLE%' !== $args['before_title'] ) { |
| 50 | $output = wp_cache_get( $cache_bucket, 'widget' ); |
| 51 | if ( $output ) { |
| 52 | echo $output; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 53 | return; |
| 54 | } |
| 55 | |
| 56 | ob_start(); |
| 57 | } |
| 58 | |
| 59 | $instance = wp_parse_args( |
| 60 | $instance, |
| 61 | array( |
| 62 | 'title' => __( 'Authors', 'wpcomsh' ), |
| 63 | 'all' => false, |
| 64 | 'avatar_size' => 32, |
| 65 | ) |
| 66 | ); |
| 67 | |
| 68 | $authors = get_users( |
| 69 | array( |
| 70 | 'fields' => 'all', |
| 71 | 'who' => 'authors', |
| 72 | ) |
| 73 | ); |
| 74 | |
| 75 | echo $args['before_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 76 | echo $args['before_title'] . esc_html( $instance['title'] ) . $args['after_title']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 77 | echo '<ul>'; |
| 78 | |
| 79 | foreach ( $authors as $author ) { |
| 80 | // Unless we're displaying all authors, check to make sure the author has some posts. |
| 81 | if ( ! $instance['all'] ) { |
| 82 | $r = new WP_Query( |
| 83 | array( |
| 84 | 'author' => $author->ID, |
| 85 | 'showposts' => 1, |
| 86 | 'what_to_show' => 'posts', |
| 87 | 'nopaging' => 0, |
| 88 | 'post_status' => 'publish', |
| 89 | ) |
| 90 | ); |
| 91 | |
| 92 | if ( ! $r->have_posts() ) { |
| 93 | continue; |
| 94 | } |
| 95 | } |
| 96 | |
| 97 | echo '<li>'; |
| 98 | echo '<a href="' . esc_url( get_author_posts_url( $author->ID ) ) . '"> '; |
| 99 | echo get_avatar( $author->ID, $instance['avatar_size'], '', '', array( 'force_display' => true ) ); |
| 100 | echo '</a>'; |
| 101 | echo '</li>'; |
| 102 | } |
| 103 | |
| 104 | echo '</ul>'; |
| 105 | echo $args['after_widget']; // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped |
| 106 | |
| 107 | wp_reset_postdata(); |
| 108 | |
| 109 | if ( '%BEG_OF_TITLE%' !== $args['before_title'] ) { |
| 110 | wp_cache_add( $cache_bucket, ob_get_flush(), 'widget' ); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Display the widget settings form. |
| 116 | * |
| 117 | * @param array $instance Current settings. |
| 118 | * @return never |
| 119 | */ |
| 120 | public function form( $instance ) { |
| 121 | $instance = wp_parse_args( |
| 122 | $instance, |
| 123 | array( |
| 124 | 'title' => '', |
| 125 | 'all' => false, |
| 126 | 'avatar_size' => 32, |
| 127 | ) |
| 128 | ); |
| 129 | ?> |
| 130 | <p> |
| 131 | <label> |
| 132 | <?php esc_html_e( 'Title:', 'wpcomsh' ); ?> |
| 133 | <input class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" /> |
| 134 | </label> |
| 135 | </p> |
| 136 | <p> |
| 137 | <label class="widget_form-author_grid-checkbox-label"> |
| 138 | <input class="checkbox" type="checkbox" <?php checked( $instance['all'] ); ?> name="<?php echo esc_attr( $this->get_field_name( 'all' ) ); ?>" /><?php esc_html_e( 'Display all authors (including those who have not written any posts)', 'wpcomsh' ); ?> |
| 139 | </label> |
| 140 | </p> |
| 141 | <p> |
| 142 | <label> |
| 143 | <?php esc_html_e( 'Avatar Size (px):', 'wpcomsh' ); ?> |
| 144 | <select name="<?php echo esc_attr( $this->get_field_name( 'avatar_size' ) ); ?>"> |
| 145 | <?php |
| 146 | foreach ( array( |
| 147 | '16' => '16x16', |
| 148 | '32' => '32x32', |
| 149 | '48' => '48x48', |
| 150 | '96' => '96x96', |
| 151 | '128' => '128x128', |
| 152 | ) as $value => $label ) { |
| 153 | ?> |
| 154 | <option value="<?php echo esc_attr( (string) $value ); ?>" <?php selected( $value, $instance['avatar_size'] ); ?>><?php echo esc_html( $label ); ?></option> |
| 155 | <?php } ?> |
| 156 | </select> |
| 157 | </label> |
| 158 | </p> |
| 159 | <?php |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Update the widget settings. |
| 164 | * |
| 165 | * @param array $new_instance New settings. |
| 166 | * @param array $old_instance Old settings. |
| 167 | */ |
| 168 | public function update( $new_instance, $old_instance ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 169 | $new_instance['title'] = wp_strip_all_tags( $new_instance['title'] ); |
| 170 | $new_instance['all'] = isset( $new_instance['all'] ); |
| 171 | $new_instance['avatar_size'] = (int) $new_instance['avatar_size']; |
| 172 | |
| 173 | self::flush_cache(); |
| 174 | |
| 175 | return $new_instance; |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Enqueue widget styles. |
| 180 | */ |
| 181 | public function add_styles() { |
| 182 | wp_enqueue_style( 'widget-author_grid', plugins_url( 'author-grid/author-grid.css', __FILE__ ), array(), WPCOMSH_VERSION ); |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * Enqueue customizer styles. |
| 187 | */ |
| 188 | public function form_styles() { |
| 189 | wp_enqueue_style( 'widget-author_grid_customizer', plugins_url( 'author-grid/author-grid-customizer.css', __FILE__ ), array(), WPCOMSH_VERSION ); |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | add_action( |
| 194 | 'widgets_init', |
| 195 | function () { |
| 196 | // Don't load this Widget for users who don't have preferences for it |
| 197 | $widgets = get_option( 'widget_author_grid' ); |
| 198 | if ( ! is_array( $widgets ) ) { |
| 199 | return; |
| 200 | } |
| 201 | register_widget( 'Widget_Authors_Grid' ); |
| 202 | } |
| 203 | ); |