WordPress 4.5
[autoinstalls/wordpress.git] / wp-admin / includes / class-wp-media-list-table.php
index 2c2bf7c39b4b5186674414207fb70db74fc35a50..98deaac8c9f632e20e14ee32af7c0c3eab417afd 100644 (file)
@@ -1,16 +1,51 @@
 <?php
 /**
- * Media Library List Table class.
+ * List Table API: WP_Media_List_Table class
  *
  * @package WordPress
- * @subpackage List_Table
+ * @subpackage Administration
+ * @since 3.1.0
+ */
+
+/**
+ * Core class used to implement displaying media items in a list table.
+ *
  * @since 3.1.0
  * @access private
+ *
+ * @see WP_List_Table
  */
 class WP_Media_List_Table extends WP_List_Table {
-
-       function __construct( $args = array() ) {
-               $this->detached = isset( $_REQUEST['detached'] ) || isset( $_REQUEST['find_detached'] );
+       /**
+        * Holds the number of pending comments for each post.
+        *
+        * @since 4.4.0
+        * @var array
+        * @access protected
+        */
+       protected $comment_pending_count = array();
+
+       private $detached;
+
+       private $is_trash;
+
+       /**
+        * Constructor.
+        *
+        * @since 3.1.0
+        * @access public
+        *
+        * @see WP_List_Table::__construct() for more information on default arguments.
+        *
+        * @param array $args An associative array of arguments.
+        */
+       public function __construct( $args = array() ) {
+               $this->detached = ( isset( $_REQUEST['attachment-filter'] ) && 'detached' === $_REQUEST['attachment-filter'] );
+
+               $this->modes = array(
+                       'list' => __( 'List View' ),
+                       'grid' => __( 'Grid View' )
+               );
 
                parent::__construct( array(
                        'plural' => 'media',
@@ -18,21 +53,29 @@ class WP_Media_List_Table extends WP_List_Table {
                ) );
        }
 
-       function ajax_user_can() {
+       /**
+        *
+        * @return bool
+        */
+       public function ajax_user_can() {
                return current_user_can('upload_files');
        }
 
-       function prepare_items() {
-               global $lost, $wpdb, $wp_query, $post_mime_types, $avail_post_mime_types;
+       /**
+        *
+        * @global WP_Query $wp_query
+        * @global array    $post_mime_types
+        * @global array    $avail_post_mime_types
+        * @global string   $mode
+        */
+       public function prepare_items() {
+               global $wp_query, $post_mime_types, $avail_post_mime_types, $mode;
 
-               $q = $_REQUEST;
+               list( $post_mime_types, $avail_post_mime_types ) = wp_edit_attachments_query( $_REQUEST );
 
-               if ( !empty( $lost ) )
-                       $q['post__in'] = implode( ',', $lost );
+               $this->is_trash = isset( $_REQUEST['attachment-filter'] ) && 'trash' === $_REQUEST['attachment-filter'];
 
-               list( $post_mime_types, $avail_post_mime_types ) = wp_edit_attachments_query( $q );
-
-               $this->is_trash = isset( $_REQUEST['status'] ) && 'trash' == $_REQUEST['status'];
+               $mode = empty( $_REQUEST['mode'] ) ? 'list' : $_REQUEST['mode'];
 
                $this->set_pagination_args( array(
                        'total_items' => $wp_query->found_posts,
@@ -41,114 +84,222 @@ class WP_Media_List_Table extends WP_List_Table {
                ) );
        }
 
-       function get_views() {
-               global $wpdb, $post_mime_types, $avail_post_mime_types;
+       /**
+        * @global array $post_mime_types
+        * @global array $avail_post_mime_types
+        * @return array
+        */
+       protected function get_views() {
+               global $post_mime_types, $avail_post_mime_types;
 
                $type_links = array();
-               $_num_posts = (array) wp_count_attachments();
-               $_total_posts = array_sum($_num_posts) - $_num_posts['trash'];
-               if ( !isset( $total_orphans ) )
-                               $total_orphans = $wpdb->get_var( "SELECT COUNT( * ) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' AND post_parent < 1" );
-               $matches = wp_match_mime_types(array_keys($post_mime_types), array_keys($_num_posts));
-               foreach ( $matches as $type => $reals )
-                       foreach ( $reals as $real )
-                               $num_posts[$type] = ( isset( $num_posts[$type] ) ) ? $num_posts[$type] + $_num_posts[$real] : $_num_posts[$real];
-
-               $class = ( empty($_GET['post_mime_type']) && !$this->detached && !isset($_GET['status']) ) ? ' class="current"' : '';
-               $type_links['all'] = "<a href='upload.php'$class>" . sprintf( _nx( 'All <span class="count">(%s)</span>', 'All <span class="count">(%s)</span>', $_total_posts, 'uploaded files' ), number_format_i18n( $_total_posts ) ) . '</a>';
-               foreach ( $post_mime_types as $mime_type => $label ) {
-                       $class = '';
 
-                       if ( !wp_match_mime_types($mime_type, $avail_post_mime_types) )
-                               continue;
+               $filter = empty( $_GET['attachment-filter'] ) ? '' : $_GET['attachment-filter'];
 
-                       if ( !empty($_GET['post_mime_type']) && wp_match_mime_types($mime_type, $_GET['post_mime_type']) )
-                               $class = ' class="current"';
-                       if ( !empty( $num_posts[$mime_type] ) )
-                               $type_links[$mime_type] = "<a href='upload.php?post_mime_type=$mime_type'$class>" . sprintf( translate_nooped_plural( $label[2], $num_posts[$mime_type] ), number_format_i18n( $num_posts[$mime_type] )) . '</a>';
-               }
-               $type_links['detached'] = '<a href="upload.php?detached=1"' . ( $this->detached ? ' class="current"' : '' ) . '>' . sprintf( _nx( 'Unattached <span class="count">(%s)</span>', 'Unattached <span class="count">(%s)</span>', $total_orphans, 'detached files' ), number_format_i18n( $total_orphans ) ) . '</a>';
+               $type_links['all'] = sprintf(
+                       '<option value=""%s>%s</option>',
+                       selected( $filter, true, false ),
+                       __( 'All media items' )
+               );
 
-               if ( !empty($_num_posts['trash']) )
-                       $type_links['trash'] = '<a href="upload.php?status=trash"' . ( (isset($_GET['status']) && $_GET['status'] == 'trash' ) ? ' class="current"' : '') . '>' . sprintf( _nx( 'Trash <span class="count">(%s)</span>', 'Trash <span class="count">(%s)</span>', $_num_posts['trash'], 'uploaded files' ), number_format_i18n( $_num_posts['trash'] ) ) . '</a>';
+               foreach ( $post_mime_types as $mime_type => $label ) {
+                       if ( ! wp_match_mime_types( $mime_type, $avail_post_mime_types ) ) {
+                               continue;
+                       }
 
+                       $selected = selected(
+                               $filter && 0 === strpos( $filter, 'post_mime_type:' ) &&
+                                       wp_match_mime_types( $mime_type, str_replace( 'post_mime_type:', '', $filter ) ),
+                               true,
+                               false
+                       );
+
+                       $type_links[$mime_type] = sprintf(
+                               '<option value="post_mime_type:%s"%s>%s</option>',
+                               esc_attr( $mime_type ),
+                               $selected,
+                               $label[0]
+                       );
+               }
+               $type_links['detached'] = '<option value="detached"' . ( $this->detached ? ' selected="selected"' : '' ) . '>' . __( 'Unattached' ) . '</option>';
+
+               if ( $this->is_trash || ( defined( 'MEDIA_TRASH') && MEDIA_TRASH ) ) {
+                       $type_links['trash'] = sprintf(
+                               '<option value="trash"%s>%s</option>',
+                               selected( 'trash' === $filter, true, false ),
+                               _x( 'Trash', 'attachment filter' )
+                       );
+               }
                return $type_links;
        }
 
-       function get_bulk_actions() {
+       /**
+        *
+        * @return array
+        */
+       protected function get_bulk_actions() {
                $actions = array();
-               $actions['delete'] = __( 'Delete Permanently' );
+               if ( MEDIA_TRASH ) {
+                       if ( $this->is_trash ) {
+                               $actions['untrash'] = __( 'Restore' );
+                               $actions['delete'] = __( 'Delete Permanently' );
+                       } else {
+                               $actions['trash'] = _x( 'Trash', 'verb' );
+                       }
+               } else {
+                       $actions['delete'] = __( 'Delete Permanently' );
+               }
+
                if ( $this->detached )
-                       $actions['attach'] = __( 'Attach to a post' );
+                       $actions['attach'] = __( 'Attach' );
 
                return $actions;
        }
 
-       function extra_tablenav( $which ) {
+       /**
+        * @param string $which
+        */
+       protected function extra_tablenav( $which ) {
+               if ( 'bar' !== $which ) {
+                       return;
+               }
 ?>
-               <div class="alignleft actions">
+               <div class="actions">
 <?php
-               if ( 'top' == $which && !is_singular() && !$this->detached && !$this->is_trash ) {
-                       $this->months_dropdown( 'attachment' );
+               if ( ! is_singular() ) {
+                       if ( ! $this->is_trash ) {
+                               $this->months_dropdown( 'attachment' );
+                       }
+
+                       /** This action is documented in wp-admin/includes/class-wp-posts-list-table.php */
+                       do_action( 'restrict_manage_posts', $this->screen->post_type );
 
-                       do_action( 'restrict_manage_posts' );
-                       submit_button( __( 'Filter' ), 'button', false, false, array( 'id' => 'post-query-submit' ) );
+                       submit_button( __( 'Filter' ), 'button', 'filter_action', false, array( 'id' => 'post-query-submit' ) );
                }
 
-               if ( $this->detached ) {
-                       submit_button( __( 'Scan for lost attachments' ), 'secondary', 'find_detached', false );
-               } elseif ( $this->is_trash && current_user_can( 'edit_others_posts' ) ) {
+               if ( $this->is_trash && current_user_can( 'edit_others_posts' ) ) {
                        submit_button( __( 'Empty Trash' ), 'apply', 'delete_all', false );
                } ?>
                </div>
 <?php
        }
 
-       function current_action() {
-               if ( isset( $_REQUEST['find_detached'] ) )
-                       return 'find_detached';
-
+       /**
+        *
+        * @return string
+        */
+       public function current_action() {
                if ( isset( $_REQUEST['found_post_id'] ) && isset( $_REQUEST['media'] ) )
                        return 'attach';
 
+               if ( isset( $_REQUEST['parent_post_id'] ) && isset( $_REQUEST['media'] ) )
+                       return 'detach';
+
                if ( isset( $_REQUEST['delete_all'] ) || isset( $_REQUEST['delete_all2'] ) )
                        return 'delete_all';
 
                return parent::current_action();
        }
 
-       function has_items() {
+       /**
+        *
+        * @return bool
+        */
+       public function has_items() {
                return have_posts();
        }
 
-       function no_items() {
-               _e( 'No media attachments found.' );
+       /**
+        * @access public
+        */
+       public function no_items() {
+               _e( 'No media files found.' );
        }
 
-       function get_columns() {
+       /**
+        * Override parent views so we can use the filter bar display.
+        *
+        * @global string $mode
+        */
+       public function views() {
+               global $mode;
+
+               $views = $this->get_views();
+
+               $this->screen->render_screen_reader_content( 'heading_views' );
+?>
+<div class="wp-filter">
+       <div class="filter-items">
+               <?php $this->view_switcher( $mode ); ?>
+
+               <label for="attachment-filter" class="screen-reader-text"><?php _e( 'Filter by type' ); ?></label>
+               <select class="attachment-filters" name="attachment-filter" id="attachment-filter">
+                       <?php
+                       if ( ! empty( $views ) ) {
+                               foreach ( $views as $class => $view ) {
+                                       echo "\t$view\n";
+                               }
+                       }
+                       ?>
+               </select>
+
+<?php
+               $this->extra_tablenav( 'bar' );
+
+               /** This filter is documented in wp-admin/inclues/class-wp-list-table.php */
+               $views = apply_filters( "views_{$this->screen->id}", array() );
+
+               // Back compat for pre-4.0 view links.
+               if ( ! empty( $views ) ) {
+                       echo '<ul class="filter-links">';
+                       foreach ( $views as $class => $view ) {
+                               echo "<li class='$class'>$view</li>";
+                       }
+                       echo '</ul>';
+               }
+?>
+       </div>
+
+       <div class="search-form">
+               <label for="media-search-input" class="screen-reader-text"><?php esc_html_e( 'Search Media' ); ?></label>
+               <input type="search" placeholder="<?php esc_attr_e( 'Search' ) ?>" id="media-search-input" class="search" name="s" value="<?php _admin_search_query(); ?>"></div>
+       </div>
+       <?php
+       }
+
+       /**
+        *
+        * @return array
+        */
+       public function get_columns() {
                $posts_columns = array();
                $posts_columns['cb'] = '<input type="checkbox" />';
-               $posts_columns['icon'] = '';
                /* translators: column name */
                $posts_columns['title'] = _x( 'File', 'column name' );
                $posts_columns['author'] = __( 'Author' );
 
-               $taxonomies = array();
-
                $taxonomies = get_taxonomies_for_attachments( 'objects' );
                $taxonomies = wp_filter_object_list( $taxonomies, array( 'show_admin_column' => true ), 'and', 'name' );
 
+               /**
+                * Filter the taxonomy columns for attachments in the Media list table.
+                *
+                * @since 3.5.0
+                *
+                * @param array  $taxonomies An array of registered taxonomies to show for attachments.
+                * @param string $post_type  The post type. Default 'attachment'.
+                */
                $taxonomies = apply_filters( 'manage_taxonomies_for_attachment_columns', $taxonomies, 'attachment' );
                $taxonomies = array_filter( $taxonomies, 'taxonomy_exists' );
 
                foreach ( $taxonomies as $taxonomy ) {
-                       if ( 'category' == $taxonomy )
+                       if ( 'category' === $taxonomy ) {
                                $column_key = 'categories';
-                       elseif ( 'post_tag' == $taxonomy )
+                       } elseif ( 'post_tag' === $taxonomy ) {
                                $column_key = 'tags';
-                       else
+                       } else {
                                $column_key = 'taxonomy-' . $taxonomy;
-
+                       }
                        $posts_columns[ $column_key ] = get_taxonomy( $taxonomy )->labels->name;
                }
 
@@ -156,16 +307,27 @@ class WP_Media_List_Table extends WP_List_Table {
                if ( !$this->detached ) {
                        $posts_columns['parent'] = _x( 'Uploaded to', 'column name' );
                        if ( post_type_supports( 'attachment', 'comments' ) )
-                               $posts_columns['comments'] = '<span class="vers"><div title="' . esc_attr__( 'Comments' ) . '" class="comment-grey-bubble"></div></span>';
+                               $posts_columns['comments'] = '<span class="vers comment-grey-bubble" title="' . esc_attr__( 'Comments' ) . '"><span class="screen-reader-text">' . __( 'Comments' ) . '</span></span>';
                }
                /* translators: column name */
                $posts_columns['date'] = _x( 'Date', 'column name' );
-               $posts_columns = apply_filters( 'manage_media_columns', $posts_columns, $this->detached );
-
-               return $posts_columns;
+               /**
+                * Filter the Media list table columns.
+                *
+                * @since 2.5.0
+                *
+                * @param array $posts_columns An array of columns displayed in the Media list table.
+                * @param bool  $detached      Whether the list table contains media not attached
+                *                             to any posts. Default true.
+                */
+               return apply_filters( 'manage_media_columns', $posts_columns, $this->detached );
        }
 
-       function get_sortable_columns() {
+       /**
+        *
+        * @return array
+        */
+       protected function get_sortable_columns() {
                return array(
                        'title'    => 'title',
                        'author'   => 'author',
@@ -175,185 +337,229 @@ class WP_Media_List_Table extends WP_List_Table {
                );
        }
 
-       function display_rows() {
-               global $post, $id;
-
-               add_filter( 'the_title','esc_html' );
-               $alt = '';
-
-               while ( have_posts() ) : the_post();
-                       $user_can_edit = current_user_can( 'edit_post', $post->ID );
-
-                       if ( $this->is_trash && $post->post_status != 'trash'
-                       ||  !$this->is_trash && $post->post_status == 'trash' )
-                               continue;
-
-                       $alt = ( 'alternate' == $alt ) ? '' : 'alternate';
-                       $post_owner = ( get_current_user_id() == $post->post_author ) ? 'self' : 'other';
-                       $att_title = _draft_or_post_title();
-?>
-       <tr id='post-<?php echo $id; ?>' class='<?php echo trim( $alt . ' author-' . $post_owner . ' status-' . $post->post_status ); ?>' valign="top">
-<?php
-
-list( $columns, $hidden ) = $this->get_column_info();
-foreach ( $columns as $column_name => $column_display_name ) {
-       $class = "class='$column_name column-$column_name'";
-
-       $style = '';
-       if ( in_array( $column_name, $hidden ) )
-               $style = ' style="display:none;"';
-
-       $attributes = $class . $style;
-
-       switch ( $column_name ) {
-
-       case 'cb':
-?>
-               <th scope="row" class="check-column">
-                       <?php if ( $user_can_edit ) { ?>
-                               <label class="screen-reader-text" for="cb-select-<?php the_ID(); ?>"><?php echo sprintf( __( 'Select %s' ), $att_title );?></label>
-                               <input type="checkbox" name="media[]" id="cb-select-<?php the_ID(); ?>" value="<?php the_ID(); ?>" />
-                       <?php } ?>
-               </th>
-<?php
-               break;
-
-       case 'icon':
-               $attributes = 'class="column-icon media-icon"' . $style;
-?>
-               <td <?php echo $attributes ?>><?php
-                       if ( $thumb = wp_get_attachment_image( $post->ID, array( 80, 60 ), true ) ) {
-                               if ( $this->is_trash || ! $user_can_edit ) {
-                                       echo $thumb;
-                               } else {
-?>
-                               <a href="<?php echo get_edit_post_link( $post->ID, true ); ?>" title="<?php echo esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $att_title ) ); ?>">
-                                       <?php echo $thumb; ?>
-                               </a>
+       /**
+        * Handles the checkbox column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_cb( $post ) {
+               if ( current_user_can( 'edit_post', $post->ID ) ) { ?>
+                       <label class="screen-reader-text" for="cb-select-<?php echo $post->ID; ?>"><?php
+                               echo sprintf( __( 'Select %s' ), _draft_or_post_title() );
+                       ?></label>
+                       <input type="checkbox" name="media[]" id="cb-select-<?php echo $post->ID; ?>" value="<?php echo $post->ID; ?>" />
+               <?php }
+       }
 
-<?php                  }
-                       }
-?>
-               </td>
-<?php
-               break;
+       /**
+        * Handles the title column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_title( $post ) {
+               list( $mime ) = explode( '/', $post->post_mime_type );
+
+               $title = _draft_or_post_title();
+               $thumb = wp_get_attachment_image( $post->ID, array( 60, 60 ), true, array( 'alt' => '' ) );
+               $link_start = $link_end = '';
+
+               if ( current_user_can( 'edit_post', $post->ID ) && ! $this->is_trash ) {
+                       $link_start = sprintf(
+                               '<a href="%s" aria-label="%s">',
+                               get_edit_post_link( $post->ID ),
+                               /* translators: %s: attachment title */
+                               esc_attr( sprintf( __( '&#8220;%s&#8221; (Edit)' ), $title ) )
+                       );
+                       $link_end = '</a>';
+               }
 
-       case 'title':
-?>
-               <td <?php echo $attributes ?>><strong>
-                       <?php if ( $this->is_trash || ! $user_can_edit ) {
-                               echo $att_title;
-                       } else { ?>
-                       <a href="<?php echo get_edit_post_link( $post->ID, true ); ?>"
-                               title="<?php echo esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $att_title ) ); ?>">
-                               <?php echo $att_title; ?></a>
-                       <?php };
-                       _media_states( $post ); ?></strong>
-                       <p>
-<?php
-                       if ( preg_match( '/^.*?\.(\w+)$/', get_attached_file( $post->ID ), $matches ) )
-                               echo esc_html( strtoupper( $matches[1] ) );
-                       else
-                               echo strtoupper( str_replace( 'image/', '', get_post_mime_type() ) );
-?>
-                       </p>
-<?php
-               echo $this->row_actions( $this->_get_row_actions( $post, $att_title ) );
-?>
-               </td>
-<?php
-               break;
+               $class = $thumb ? ' class="has-media-icon"' : '';
+               ?>
+               <strong<?php echo $class; ?>>
+                       <?php
+                       echo $link_start;
+                       if ( $thumb ) : ?>
+                               <span class="media-icon <?php echo sanitize_html_class( $mime . '-icon' ); ?>"><?php echo $thumb; ?></span>
+                       <?php endif;
+                       echo $title . $link_end;
+                       _media_states( $post );
+                       ?>
+               </strong>
+               <p class="filename">
+                       <span class="screen-reader-text"><?php _e( 'File name:' ); ?> </span>
+                       <?php
+                       $file = get_attached_file( $post->ID );
+                       echo wp_basename( $file );
+                       ?>
+               </p>
+               <?php
+       }
 
-       case 'author':
-?>
-               <td <?php echo $attributes ?>><?php the_author() ?></td>
-<?php
-               break;
+       /**
+        * Handles the author column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_author( $post ) {
+               printf( '<a href="%s">%s</a>',
+                       esc_url( add_query_arg( array( 'author' => get_the_author_meta('ID') ), 'upload.php' ) ),
+                       get_the_author()
+               );
+       }
 
-       case 'desc':
-?>
-               <td <?php echo $attributes ?>><?php echo has_excerpt() ? $post->post_excerpt : ''; ?></td>
-<?php
-               break;
+       /**
+        * Handles the description column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_desc( $post ) {
+               echo has_excerpt() ? $post->post_excerpt : '';
+       }
 
-       case 'date':
-               if ( '0000-00-00 00:00:00' == $post->post_date ) {
+       /**
+        * Handles the date column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_date( $post ) {
+               if ( '0000-00-00 00:00:00' === $post->post_date ) {
                        $h_time = __( 'Unpublished' );
                } else {
                        $m_time = $post->post_date;
                        $time = get_post_time( 'G', true, $post, false );
                        if ( ( abs( $t_diff = time() - $time ) ) < DAY_IN_SECONDS ) {
-                               if ( $t_diff < 0 )
+                               if ( $t_diff < 0 ) {
                                        $h_time = sprintf( __( '%s from now' ), human_time_diff( $time ) );
-                               else
+                               } else {
                                        $h_time = sprintf( __( '%s ago' ), human_time_diff( $time ) );
+                               }
                        } else {
                                $h_time = mysql2date( __( 'Y/m/d' ), $m_time );
                        }
                }
-?>
-               <td <?php echo $attributes ?>><?php echo $h_time ?></td>
-<?php
-               break;
 
-       case 'parent':
+               echo $h_time;
+       }
+
+       /**
+        * Handles the parent column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_parent( $post ) {
+               $user_can_edit = current_user_can( 'edit_post', $post->ID );
+
                if ( $post->post_parent > 0 ) {
-                       if ( get_post( $post->post_parent ) ) {
-                               $title =_draft_or_post_title( $post->post_parent );
-                       }
-?>
-                       <td <?php echo $attributes ?>><strong>
-                               <?php if( current_user_can( 'edit_post', $post->post_parent ) ) { ?>
-                                       <a href="<?php echo get_edit_post_link( $post->post_parent ); ?>">
-                                               <?php echo $title ?></a><?php
-                               } else {
-                                       echo $title;
-                               } ?></strong>,
-                               <?php echo get_the_time( __( 'Y/m/d' ) ); ?>
-                       </td>
-<?php
+                       $parent = get_post( $post->post_parent );
                } else {
-?>
-                       <td <?php echo $attributes ?>><?php _e( '(Unattached)' ); ?><br />
-                       <?php if( $user_can_edit ) {?>
-                               <a class="hide-if-no-js"
-                                       onclick="findPosts.open( 'media[]','<?php echo $post->ID ?>' ); return false;"
-                                       href="#the-list">
-                                       <?php _e( 'Attach' ); ?></a>
-                       <?php } ?></td>
-<?php
+                       $parent = false;
                }
-               break;
 
-       case 'comments':
-               $attributes = 'class="comments column-comments num"' . $style;
+               if ( $parent ) {
+                       $title = _draft_or_post_title( $post->post_parent );
+                       $parent_type = get_post_type_object( $parent->post_type );
 ?>
-               <td <?php echo $attributes ?>>
-                       <div class="post-com-count-wrapper">
-<?php
-               $pending_comments = get_pending_comments_num( $post->ID );
+                       <strong>
+                       <?php if ( $parent_type && $parent_type->show_ui && current_user_can( 'edit_post', $post->post_parent ) ) { ?>
+                               <a href="<?php echo get_edit_post_link( $post->post_parent ); ?>">
+                                       <?php echo $title ?></a><?php
+                       } else {
+                               echo $title;
+                       } ?></strong>
+                       <br />
+                       <?php
+                       if ( $user_can_edit ):
+                               $detach_url = add_query_arg( array(
+                                       'parent_post_id' => $post->post_parent,
+                                       'media[]' => $post->ID,
+                                       '_wpnonce' => wp_create_nonce( 'bulk-' . $this->_args['plural'] )
+                               ), 'upload.php' );
+                               printf(
+                                       '<a href="%s" class="hide-if-no-js detach-from-parent" aria-label="%s">%s</a>',
+                                       $detach_url,
+                                       /* translators: %s: title of the post the attachment is attached to */
+                                       esc_attr( sprintf( __( 'Detach from &#8220;%s&#8221;' ), $title ) ),
+                                       __( 'Detach' )
+                               );
+                       endif;
+               } else {
+                       _e( '(Unattached)' ); ?><br />
+                       <?php if ( $user_can_edit ) {
+                               $title = _draft_or_post_title( $post->post_parent );
+                               printf(
+                                       '<a href="#the-list" onclick="findPosts.open( \'media[]\', \'%s\' ); return false;" class="hide-if-no-js" aria-label="%s">%s</a>',
+                                       $post->ID,
+                                       /* translators: %s: attachment title */
+                                       esc_attr( sprintf( __( 'Attach &#8220;%s&#8221; to existing content' ), $title ) ),
+                                       __( 'Attach' )
+                               );
+                       }
+               }
+       }
+
+       /**
+        * Handles the comments column output.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post The current WP_Post object.
+        */
+       public function column_comments( $post ) {
+               echo '<div class="post-com-count-wrapper">';
+
+               if ( isset( $this->comment_pending_count[ $post->ID ] ) ) {
+                       $pending_comments = $this->comment_pending_count[ $post->ID ];
+               } else {
+                       $pending_comments = get_pending_comments_num( $post->ID );
+               }
 
                $this->comments_bubble( $post->ID, $pending_comments );
-?>
-                       </div>
-               </td>
-<?php
-               break;
 
-       default:
-               if ( 'categories' == $column_name )
+               echo '</div>';
+       }
+
+       /**
+        * Handles output for the default column.
+        *
+        * @since 4.3.0
+        * @access public
+        *
+        * @param WP_Post $post        The current WP_Post object.
+        * @param string  $column_name Current column name.
+        */
+       public function column_default( $post, $column_name ) {
+               if ( 'categories' === $column_name ) {
                        $taxonomy = 'category';
-               elseif ( 'tags' == $column_name )
+               } elseif ( 'tags' === $column_name ) {
                        $taxonomy = 'post_tag';
-               elseif ( 0 === strpos( $column_name, 'taxonomy-' ) )
+               } elseif ( 0 === strpos( $column_name, 'taxonomy-' ) ) {
                        $taxonomy = substr( $column_name, 9 );
-               else
+               } else {
                        $taxonomy = false;
+               }
 
                if ( $taxonomy ) {
-                       $taxonomy_object = get_taxonomy( $taxonomy );
-                       echo '<td ' . $attributes . '>';
-                       if ( $terms = get_the_terms( $post->ID, $taxonomy ) ) {
+                       $terms = get_the_terms( $post->ID, $taxonomy );
+                       if ( is_array( $terms ) ) {
                                $out = array();
                                foreach ( $terms as $t ) {
                                        $posts_in_term_qv = array();
@@ -368,62 +574,207 @@ foreach ( $columns as $column_name => $column_display_name ) {
                                /* translators: used between list items, there is a space after the comma */
                                echo join( __( ', ' ), $out );
                        } else {
-                               echo '&#8212;';
+                               echo '<span aria-hidden="true">&#8212;</span><span class="screen-reader-text">' . get_taxonomy( $taxonomy )->labels->no_terms . '</span>';
                        }
-                       echo '</td>';
-                       break;
+
+                       return;
                }
-?>
-               <td <?php echo $attributes ?>>
-                       <?php do_action( 'manage_media_custom_column', $column_name, $id ); ?>
-               </td>
-<?php
-               break;
+
+               /**
+                * Fires for each custom column in the Media list table.
+                *
+                * Custom columns are registered using the {@see 'manage_media_columns'} filter.
+                *
+                * @since 2.5.0
+                *
+                * @param string $column_name Name of the custom column.
+                * @param int    $post_id     Attachment ID.
+                */
+               do_action( 'manage_media_custom_column', $column_name, $post->ID );
        }
-}
-?>
-       </tr>
-<?php endwhile;
+
+       /**
+        *
+        * @global WP_Post $post
+        */
+       public function display_rows() {
+               global $post, $wp_query;
+
+               $post_ids = wp_list_pluck( $wp_query->posts, 'ID' );
+               reset( $wp_query->posts );
+
+               $this->comment_pending_count = get_pending_comments_num( $post_ids );
+
+               add_filter( 'the_title','esc_html' );
+
+               while ( have_posts() ) : the_post();
+                       if (
+                               ( $this->is_trash && $post->post_status != 'trash' )
+                               || ( ! $this->is_trash && $post->post_status === 'trash' )
+                       ) {
+                               continue;
+                       }
+                       $post_owner = ( get_current_user_id() == $post->post_author ) ? 'self' : 'other';
+               ?>
+                       <tr id="post-<?php echo $post->ID; ?>" class="<?php echo trim( ' author-' . $post_owner . ' status-' . $post->post_status ); ?>">
+                               <?php $this->single_row_columns( $post ); ?>
+                       </tr>
+               <?php
+               endwhile;
+       }
+
+       /**
+        * Gets the name of the default primary column.
+        *
+        * @since 4.3.0
+        * @access protected
+        *
+        * @return string Name of the default primary column, in this case, 'title'.
+        */
+       protected function get_default_primary_column_name() {
+               return 'title';
        }
 
-       function _get_row_actions( $post, $att_title ) {
+       /**
+        * @param WP_Post $post
+        * @param string  $att_title
+        *
+        * @return array
+        */
+       private function _get_row_actions( $post, $att_title ) {
                $actions = array();
 
                if ( $this->detached ) {
-                       if ( current_user_can( 'edit_post', $post->ID ) )
-                               $actions['edit'] = '<a href="' . get_edit_post_link( $post->ID, true ) . '">' . __( 'Edit' ) . '</a>';
-                       if ( current_user_can( 'delete_post', $post->ID ) )
+                       if ( current_user_can( 'edit_post', $post->ID ) ) {
+                               $actions['edit'] = sprintf(
+                                       '<a href="%s" aria-label="%s">%s</a>',
+                                       get_edit_post_link( $post->ID ),
+                                       /* translators: %s: attachment title */
+                                       esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $att_title ) ),
+                                       __( 'Edit' )
+                               );
+                       }
+                       if ( current_user_can( 'delete_post', $post->ID ) ) {
                                if ( EMPTY_TRASH_DAYS && MEDIA_TRASH ) {
-                                       $actions['trash'] = "<a class='submitdelete' href='" . wp_nonce_url( "post.php?action=trash&amp;post=$post->ID", 'trash-post_' . $post->ID ) . "'>" . __( 'Trash' ) . "</a>";
+                                       $actions['trash'] = sprintf(
+                                               '<a href="%s" class="submitdelete" aria-label="%s">%s</a>',
+                                               wp_nonce_url( "post.php?action=trash&amp;post=$post->ID", 'trash-post_' . $post->ID ),
+                                               /* translators: %s: attachment title */
+                                               esc_attr( sprintf( __( 'Move &#8220;%s&#8221; to the Trash' ), $att_title ) ),
+                                               _x( 'Trash', 'verb' )
+                                       );
                                } else {
-                                       $delete_ays = !MEDIA_TRASH ? " onclick='return showNotice.warn();'" : '';
-                                       $actions['delete'] = "<a class='submitdelete'$delete_ays href='" . wp_nonce_url( "post.php?action=delete&amp;post=$post->ID", 'delete-post_' . $post->ID ) . "'>" . __( 'Delete Permanently' ) . "</a>";
+                                       $delete_ays = ! MEDIA_TRASH ? " onclick='return showNotice.warn();'" : '';
+                                       $actions['delete'] = sprintf(
+                                               '<a href="%s" class="submitdelete"%s aria-label="%s">%s</a>',
+                                               wp_nonce_url( "post.php?action=delete&amp;post=$post->ID", 'delete-post_' . $post->ID ),
+                                               $delete_ays,
+                                               /* translators: %s: attachment title */
+                                               esc_attr( sprintf( __( 'Delete &#8220;%s&#8221; permanently' ), $att_title ) ),
+                                               __( 'Delete Permanently' )
+                                       );
                                }
-                       $actions['view'] = '<a href="' . get_permalink( $post->ID ) . '" title="' . esc_attr( sprintf( __( 'View &#8220;%s&#8221;' ), $att_title ) ) . '" rel="permalink">' . __( 'View' ) . '</a>';
-                       if ( current_user_can( 'edit_post', $post->ID ) )
-                               $actions['attach'] = '<a href="#the-list" onclick="findPosts.open( \'media[]\',\''.$post->ID.'\' );return false;" class="hide-if-no-js">'.__( 'Attach' ).'</a>';
+                       }
+                       $actions['view'] = sprintf(
+                               '<a href="%s" aria-label="%s" rel="permalink">%s</a>',
+                               get_permalink( $post->ID ),
+                               /* translators: %s: attachment title */
+                               esc_attr( sprintf( __( 'View &#8220;%s&#8221;' ), $att_title ) ),
+                               __( 'View' )
+                       );
+
+                       if ( current_user_can( 'edit_post', $post->ID ) ) {
+                               $actions['attach'] = sprintf(
+                                       '<a href="#the-list" onclick="findPosts.open( \'media[]\', \'%s\' ); return false;" class="hide-if-no-js" aria-label="%s">%s</a>',
+                                       $post->ID,
+                                       /* translators: %s: attachment title */
+                                       esc_attr( sprintf( __( 'Attach &#8220;%s&#8221; to existing content' ), $att_title ) ),
+                                       __( 'Attach' )
+                               );
+                       }
                }
                else {
-                       if ( current_user_can( 'edit_post', $post->ID ) && !$this->is_trash )
-                               $actions['edit'] = '<a href="' . get_edit_post_link( $post->ID, true ) . '">' . __( 'Edit' ) . '</a>';
+                       if ( current_user_can( 'edit_post', $post->ID ) && !$this->is_trash ) {
+                               $actions['edit'] = sprintf(
+                                       '<a href="%s" aria-label="%s">%s</a>',
+                                       get_edit_post_link( $post->ID ),
+                                       /* translators: %s: attachment title */
+                                       esc_attr( sprintf( __( 'Edit &#8220;%s&#8221;' ), $att_title ) ),
+                                       __( 'Edit' )
+                               );
+                       }
                        if ( current_user_can( 'delete_post', $post->ID ) ) {
-                               if ( $this->is_trash )
-                                       $actions['untrash'] = "<a class='submitdelete' href='" . wp_nonce_url( "post.php?action=untrash&amp;post=$post->ID", 'untrash-post_' . $post->ID ) . "'>" . __( 'Restore' ) . "</a>";
-                               elseif ( EMPTY_TRASH_DAYS && MEDIA_TRASH )
-                                       $actions['trash'] = "<a class='submitdelete' href='" . wp_nonce_url( "post.php?action=trash&amp;post=$post->ID", 'trash-post_' . $post->ID ) . "'>" . __( 'Trash' ) . "</a>";
-                               if ( $this->is_trash || !EMPTY_TRASH_DAYS || !MEDIA_TRASH ) {
+                               if ( $this->is_trash ) {
+                                       $actions['untrash'] = sprintf(
+                                               '<a href="%s" class="submitdelete" aria-label="%s">%s</a>',
+                                               wp_nonce_url( "post.php?action=untrash&amp;post=$post->ID", 'untrash-post_' . $post->ID ),
+                                               /* translators: %s: attachment title */
+                                               esc_attr( sprintf( __( 'Restore &#8220;%s&#8221; from the Trash' ), $att_title ) ),
+                                               __( 'Restore' )
+                                       );
+                               } elseif ( EMPTY_TRASH_DAYS && MEDIA_TRASH ) {
+                                       $actions['trash'] = sprintf(
+                                               '<a href="%s" class="submitdelete" aria-label="%s">%s</a>',
+                                               wp_nonce_url( "post.php?action=trash&amp;post=$post->ID", 'trash-post_' . $post->ID ),
+                                               /* translators: %s: attachment title */
+                                               esc_attr( sprintf( __( 'Move &#8220;%s&#8221; to the Trash' ), $att_title ) ),
+                                               _x( 'Trash', 'verb' )
+                                       );
+                               }
+                               if ( $this->is_trash || ! EMPTY_TRASH_DAYS || ! MEDIA_TRASH ) {
                                        $delete_ays = ( !$this->is_trash && !MEDIA_TRASH ) ? " onclick='return showNotice.warn();'" : '';
-                                       $actions['delete'] = "<a class='submitdelete'$delete_ays href='" . wp_nonce_url( "post.php?action=delete&amp;post=$post->ID", 'delete-post_' . $post->ID ) . "'>" . __( 'Delete Permanently' ) . "</a>";
+                                       $actions['delete'] = sprintf(
+                                               '<a href="%s" class="submitdelete"%s aria-label="%s">%s</a>',
+                                               wp_nonce_url( "post.php?action=delete&amp;post=$post->ID", 'delete-post_' . $post->ID ),
+                                               $delete_ays,
+                                               /* translators: %s: attachment title */
+                                               esc_attr( sprintf( __( 'Delete &#8220;%s&#8221; permanently' ), $att_title ) ),
+                                               __( 'Delete Permanently' )
+                                       );
                                }
                        }
-                       if ( !$this->is_trash ) {
-                               $title =_draft_or_post_title( $post->post_parent );
-                               $actions['view'] = '<a href="' . get_permalink( $post->ID ) . '" title="' . esc_attr( sprintf( __( 'View &#8220;%s&#8221;' ), $title ) ) . '" rel="permalink">' . __( 'View' ) . '</a>';
+                       if ( ! $this->is_trash ) {
+                               $actions['view'] = sprintf(
+                                       '<a href="%s" aria-label="%s" rel="permalink">%s</a>',
+                                       get_permalink( $post->ID ),
+                                       /* translators: %s: attachment title */
+                                       esc_attr( sprintf( __( 'View &#8220;%s&#8221;' ), $att_title ) ),
+                                       __( 'View' )
+                               );
                        }
                }
 
-               $actions = apply_filters( 'media_row_actions', $actions, $post, $this->detached );
+               /**
+                * Filter the action links for each attachment in the Media list table.
+                *
+                * @since 2.8.0
+                *
+                * @param array   $actions  An array of action links for each attachment.
+                *                          Default 'Edit', 'Delete Permanently', 'View'.
+                * @param WP_Post $post     WP_Post object for the current attachment.
+                * @param bool    $detached Whether the list table contains media not attached
+                *                          to any posts. Default true.
+                */
+               return apply_filters( 'media_row_actions', $actions, $post, $this->detached );
+       }
 
-               return $actions;
+       /**
+        * Generates and displays row action links.
+        *
+        * @since 4.3.0
+        * @access protected
+        *
+        * @param object $post        Attachment being acted upon.
+        * @param string $column_name Current column name.
+        * @param string $primary     Primary column name.
+        * @return string Row actions output for media attachments.
+        */
+       protected function handle_row_actions( $post, $column_name, $primary ) {
+               if ( $primary !== $column_name ) {
+                       return '';
+               }
+
+               $att_title = _draft_or_post_title();
+               return $this->row_actions( $this->_get_row_actions( $post, $att_title ) );
        }
 }