WP_Plugin_Install_List_Table

17class WP_Plugin_Install_List_Table extends WP_List_Table {18 19	public $order   = 'ASC';20	public $orderby = null;21	public $groups  = array();22 23	private $error;24 25	/**26	 * @return bool27	 */28	public function ajax_user_can() {29		return current_user_can( 'install_plugins' );30	}31 32	/**33	 * Returns the list of known plugins.34	 *35	 * Uses the transient data from the updates API to determine the known36	 * installed plugins.37	 *38	 * @since 4.9.039	 * @access protected40	 *41	 * @return array42	 */43	protected function get_installed_plugins() {44		$plugins = array();45 46		$plugin_info = get_site_transient( 'update_plugins' );47		if ( isset( $plugin_info->no_update ) ) {48			foreach ( $plugin_info->no_update as $plugin ) {49				if ( isset( $plugin->slug ) ) {50					$plugin->upgrade          = false;51					$plugins[ $plugin->slug ] = $plugin;52				}53			}54		}55 56		if ( isset( $plugin_info->response ) ) {57			foreach ( $plugin_info->response as $plugin ) {58				if ( isset( $plugin->slug ) ) {59					$plugin->upgrade          = true;60					$plugins[ $plugin->slug ] = $plugin;61				}62			}63		}64 65		return $plugins;66	}67 68	/**69	 * Returns a list of slugs of installed plugins, if known.70	 *71	 * Uses the transient data from the updates API to determine the slugs of72	 * known installed plugins. This might be better elsewhere, perhaps even73	 * within get_plugins().74	 *75	 * @since 4.0.076	 *77	 * @return array78	 */79	protected function get_installed_plugin_slugs() {80		return array_keys( $this->get_installed_plugins() );81	}82 83	/**84	 * @global array  $tabs85	 * @global string $tab86	 * @global int    $paged87	 * @global string $type88	 * @global string $term89	 */90	public function prepare_items() {91		require_once ABSPATH . 'wp-admin/includes/plugin-install.php';92 93		global $tabs, $tab, $paged, $type, $term;94 95		$tab = ! empty( $_REQUEST['tab'] ) ? sanitize_text_field( $_REQUEST['tab'] ) : '';96