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   1  <?php
   2  /**
   3   * List Table API: WP_Links_List_Table class
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   * @since 3.1.0
   8   */
   9  
  10  /**
  11   * Core class used to implement displaying links in a list table.
  12   *
  13   * @since 3.1.0
  14   *
  15   * @see WP_List_Table
  16   */
  17  class WP_Links_List_Table extends WP_List_Table {
  18  
  19      /**
  20       * Constructor.
  21       *
  22       * @since 3.1.0
  23       *
  24       * @see WP_List_Table::__construct() for more information on default arguments.
  25       *
  26       * @param array $args An associative array of arguments.
  27       */
  28  	public function __construct( $args = array() ) {
  29          parent::__construct(
  30              array(
  31                  'plural' => 'bookmarks',
  32                  'screen' => isset( $args['screen'] ) ? $args['screen'] : null,
  33              )
  34          );
  35      }
  36  
  37      /**
  38       * @return bool
  39       */
  40  	public function ajax_user_can() {
  41          return current_user_can( 'manage_links' );
  42      }
  43  
  44      /**
  45       * @global int    $cat_id
  46       * @global string $s
  47       * @global string $orderby
  48       * @global string $order
  49       */
  50  	public function prepare_items() {
  51          global $cat_id, $s, $orderby, $order;
  52  
  53          $cat_id  = ! empty( $_REQUEST['cat_id'] ) ? absint( $_REQUEST['cat_id'] ) : 0;
  54          $orderby = ! empty( $_REQUEST['orderby'] ) ? sanitize_text_field( $_REQUEST['orderby'] ) : '';
  55          $order   = ! empty( $_REQUEST['order'] ) ? sanitize_text_field( $_REQUEST['order'] ) : '';
  56          $s       = ! empty( $_REQUEST['s'] ) ? sanitize_text_field( $_REQUEST['s'] ) : '';
  57  
  58          $args = array(
  59              'hide_invisible' => 0,
  60              'hide_empty'     => 0,
  61          );
  62  
  63          if ( 'all' !== $cat_id ) {
  64              $args['category'] = $cat_id;
  65          }
  66          if ( ! empty( $s ) ) {
  67              $args['search'] = $s;
  68          }
  69          if ( ! empty( $orderby ) ) {
  70              $args['orderby'] = $orderby;
  71          }
  72          if ( ! empty( $order ) ) {
  73              $args['order'] = $order;
  74          }
  75  
  76          $this->items = get_bookmarks( $args );
  77      }
  78  
  79      /**
  80       */
  81  	public function no_items() {
  82          _e( 'No links found.' );
  83      }
  84  
  85      /**
  86       * @return array
  87       */
  88  	protected function get_bulk_actions() {
  89          $actions           = array();
  90          $actions['delete'] = __( 'Delete' );
  91  
  92          return $actions;
  93      }
  94  
  95      /**
  96       * @global int $cat_id
  97       * @param string $which
  98       */
  99  	protected function extra_tablenav( $which ) {
 100          global $cat_id;
 101  
 102          if ( 'top' !== $which ) {
 103              return;
 104          }
 105          ?>
 106          <div class="alignleft actions">
 107              <?php
 108              $dropdown_options = array(
 109                  'selected'        => $cat_id,
 110                  'name'            => 'cat_id',
 111                  'taxonomy'        => 'link_category',
 112                  'show_option_all' => get_taxonomy( 'link_category' )->labels->all_items,
 113                  'hide_empty'      => true,
 114                  'hierarchical'    => 1,
 115                  'show_count'      => 0,
 116                  'orderby'         => 'name',
 117              );
 118  
 119              echo '<label class="screen-reader-text" for="cat_id">' . get_taxonomy( 'link_category' )->labels->filter_by_item . '</label>';
 120  
 121              wp_dropdown_categories( $dropdown_options );
 122  
 123              submit_button( __( 'Filter' ), '', 'filter_action', false, array( 'id' => 'post-query-submit' ) );
 124              ?>
 125          </div>
 126          <?php
 127      }
 128  
 129      /**
 130       * @return string[] Array of column titles keyed by their column name.
 131       */
 132  	public function get_columns() {
 133          return array(
 134              'cb'         => '<input type="checkbox" />',
 135              'name'       => _x( 'Name', 'link name' ),
 136              'url'        => __( 'URL' ),
 137              'categories' => __( 'Categories' ),
 138              'rel'        => __( 'Relationship' ),
 139              'visible'    => __( 'Visible' ),
 140              'rating'     => __( 'Rating' ),
 141          );
 142      }
 143  
 144      /**
 145       * @return array
 146       */
 147  	protected function get_sortable_columns() {
 148          return array(
 149              'name'    => array( 'name', false, _x( 'Name', 'link name' ), __( 'Table ordered by Name.' ), 'asc' ),
 150              'url'     => array( 'url', false, __( 'URL' ), __( 'Table ordered by URL.' ) ),
 151              'visible' => array( 'visible', false, __( 'Visible' ), __( 'Table ordered by Visibility.' ) ),
 152              'rating'  => array( 'rating', false, __( 'Rating' ), __( 'Table ordered by Rating.' ) ),
 153          );
 154      }
 155  
 156      /**
 157       * Gets the name of the default primary column.
 158       *
 159       * @since 4.3.0
 160       *
 161       * @return string Name of the default primary column, in this case, 'name'.
 162       */
 163  	protected function get_default_primary_column_name() {
 164          return 'name';
 165      }
 166  
 167      /**
 168       * Handles the checkbox column output.
 169       *
 170       * @since 4.3.0
 171       * @since 5.9.0 Renamed `$link` to `$item` to match parent class for PHP 8 named parameter support.
 172       *
 173       * @param object $item The current link object.
 174       */
 175  	public function column_cb( $item ) {
 176          // Restores the more descriptive, specific name for use within this method.
 177          $link = $item;
 178  
 179          ?>
 180          <input type="checkbox" name="linkcheck[]" id="cb-select-<?php echo $link->link_id; ?>" value="<?php echo esc_attr( $link->link_id ); ?>" />
 181          <label for="cb-select-<?php echo $link->link_id; ?>">
 182              <span class="screen-reader-text">
 183              <?php
 184              /* translators: Hidden accessibility text. %s: Link name. */
 185              printf( __( 'Select %s' ), $link->link_name );
 186              ?>
 187              </span>
 188          </label>
 189          <?php
 190      }
 191  
 192      /**
 193       * Handles the link name column output.
 194       *
 195       * @since 4.3.0
 196       *
 197       * @param object $link The current link object.
 198       */
 199  	public function column_name( $link ) {
 200          $edit_link = get_edit_bookmark_link( $link );
 201          printf(
 202              '<strong><a class="row-title" href="%s" aria-label="%s">%s</a></strong>',
 203              $edit_link,
 204              /* translators: %s: Link name. */
 205              esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $link->link_name ) ),
 206              $link->link_name
 207          );
 208      }
 209  
 210      /**
 211       * Handles the link URL column output.
 212       *
 213       * @since 4.3.0
 214       *
 215       * @param object $link The current link object.
 216       */
 217  	public function column_url( $link ) {
 218          $short_url = url_shorten( $link->link_url );
 219          echo "<a href='$link->link_url'>$short_url</a>";
 220      }
 221  
 222      /**
 223       * Handles the link categories column output.
 224       *
 225       * @since 4.3.0
 226       *
 227       * @global int $cat_id
 228       *
 229       * @param object $link The current link object.
 230       */
 231  	public function column_categories( $link ) {
 232          global $cat_id;
 233  
 234          $cat_names = array();
 235          foreach ( $link->link_category as $category ) {
 236              $cat = get_term( $category, 'link_category', OBJECT, 'display' );
 237              if ( is_wp_error( $cat ) ) {
 238                  echo $cat->get_error_message();
 239              }
 240              $cat_name = $cat->name;
 241              if ( (int) $cat_id !== $category ) {
 242                  $cat_name = "<a href='link-manager.php?cat_id=$category'>$cat_name</a>";
 243              }
 244              $cat_names[] = $cat_name;
 245          }
 246          echo implode( ', ', $cat_names );
 247      }
 248  
 249      /**
 250       * Handles the link relation column output.
 251       *
 252       * @since 4.3.0
 253       *
 254       * @param object $link The current link object.
 255       */
 256  	public function column_rel( $link ) {
 257          echo empty( $link->link_rel ) ? '<br />' : $link->link_rel;
 258      }
 259  
 260      /**
 261       * Handles the link visibility column output.
 262       *
 263       * @since 4.3.0
 264       *
 265       * @param object $link The current link object.
 266       */
 267  	public function column_visible( $link ) {
 268          if ( 'Y' === $link->link_visible ) {
 269              _e( 'Yes' );
 270          } else {
 271              _e( 'No' );
 272          }
 273      }
 274  
 275      /**
 276       * Handles the link rating column output.
 277       *
 278       * @since 4.3.0
 279       *
 280       * @param object $link The current link object.
 281       */
 282  	public function column_rating( $link ) {
 283          echo $link->link_rating;
 284      }
 285  
 286      /**
 287       * Handles the default column output.
 288       *
 289       * @since 4.3.0
 290       * @since 5.9.0 Renamed `$link` to `$item` to match parent class for PHP 8 named parameter support.
 291       *
 292       * @param object $item        Link object.
 293       * @param string $column_name Current column name.
 294       */
 295  	public function column_default( $item, $column_name ) {
 296          // Restores the more descriptive, specific name for use within this method.
 297          $link = $item;
 298  
 299          /**
 300           * Fires for each registered custom link column.
 301           *
 302           * @since 2.1.0
 303           *
 304           * @param string $column_name Name of the custom column.
 305           * @param int    $link_id     Link ID.
 306           */
 307          do_action( 'manage_link_custom_column', $column_name, $link->link_id );
 308      }
 309  
 310  	public function display_rows() {
 311          foreach ( $this->items as $link ) {
 312              $link                = sanitize_bookmark( $link );
 313              $link->link_name     = esc_attr( $link->link_name );
 314              $link->link_category = wp_get_link_cats( $link->link_id );
 315              ?>
 316          <tr id="link-<?php echo $link->link_id; ?>">
 317              <?php $this->single_row_columns( $link ); ?>
 318          </tr>
 319              <?php
 320          }
 321      }
 322  
 323      /**
 324       * Generates and displays row action links.
 325       *
 326       * @since 4.3.0
 327       * @since 5.9.0 Renamed `$link` to `$item` to match parent class for PHP 8 named parameter support.
 328       *
 329       * @param object $item        Link being acted upon.
 330       * @param string $column_name Current column name.
 331       * @param string $primary     Primary column name.
 332       * @return string Row actions output for links, or an empty string
 333       *                if the current column is not the primary column.
 334       */
 335  	protected function handle_row_actions( $item, $column_name, $primary ) {
 336          if ( $primary !== $column_name ) {
 337              return '';
 338          }
 339  
 340          // Restores the more descriptive, specific name for use within this method.
 341          $link = $item;
 342  
 343          $edit_link = get_edit_bookmark_link( $link );
 344  
 345          $actions           = array();
 346          $actions['edit']   = '<a href="' . $edit_link . '">' . __( 'Edit' ) . '</a>';
 347          $actions['delete'] = sprintf(
 348              '<a class="submitdelete" href="%s" onclick="return confirm( \'%s\' );">%s</a>',
 349              wp_nonce_url( "link.php?action=delete&amp;link_id=$link->link_id", 'delete-bookmark_' . $link->link_id ),
 350              /* translators: %s: Link name. */
 351              esc_js( sprintf( __( "You are about to delete this link '%s'\n  'Cancel' to stop, 'OK' to delete." ), $link->link_name ) ),
 352              __( 'Delete' )
 353          );
 354  
 355          return $this->row_actions( $actions );
 356      }
 357  }