Source

public function prepare_items() {
	global $status, $plugins, $totals, $page, $orderby, $order, $s;

	$orderby = ! empty( $_REQUEST['orderby'] ) ? sanitize_text_field( $_REQUEST['orderby'] ) : '';
	$order   = ! empty( $_REQUEST['order'] ) ? sanitize_text_field( $_REQUEST['order'] ) : '';

	/**
	 * Filters the full array of plugins to list in the Plugins list table.
	 *
	 * @since 3.0.0
	 *
	 * @see get_plugins()
	 *
	 * @param array $all_plugins An array of plugins to display in the list table.
	 */
	$all_plugins = apply_filters( 'all_plugins', get_plugins() );

	$plugins = array(
		'all'                => $all_plugins,
		'search'             => array(),
		'active'             => array(),
		'inactive'           => array(),
		'recently_activated' => array(),
		'upgrade'            => array(),
		'mustuse'            => array(),
		'dropins'            => array(),
		'paused'             => array(),
	);
	if ( $this->show_autoupdates ) {
		$auto_updates = (array) get_site_option( 'auto_update_plugins', array() );

		$plugins['auto-update-enabled']  = array();
		$plugins['auto-update-disabled'] = array();
	}

	$screen = $this->screen;

	if ( ! is_multisite() || ( $screen->in_admin( 'network' ) && current_user_can( 'manage_network_plugins' ) ) ) {

		/**
		 * Filters whether to display the advanced plugins list table.
		 *
		 * There are two types of advanced plugins - must-use and drop-ins -
		 * which can be used in a single site or Multisite network.
		 *
		 * The $type parameter allows you to differentiate between the type of advanced
		 * plugins to filter the display of. Contexts include 'mustuse' and 'dropins'.
		 *
		 * @since 3.0.0
		 *
		 * @param bool   $show Whether to show the advanced plugins for the specified
		 *                     plugin type. Default true.
		 * @param string $type The plugin type. Accepts 'mustuse', 'dropins'.
		 */
		if ( apply_filters( 'show_advanced_plugins', true, 'mustuse' ) ) {
			$plugins['mustuse'] = get_mu_plugins();
		}

		/** This action is documented in wp-admin/includes/class-wp-plugins-list-table.php */
		if ( apply_filters( 'show_advanced_plugins', true, 'dropins' ) ) {
			$plugins['dropins'] = get_dropins();
		}

		if ( current_user_can( 'update_plugins' ) ) {
			$current = get_site_transient( 'update_plugins' );
			foreach ( (array) $plugins['all'] as $plugin_file => $plugin_data ) {
				if ( isset( $current->response[ $plugin_file ] ) ) {
					$plugins['all'][ $plugin_file ]['update'] = true;
					$plugins['upgrade'][ $plugin_file ]       = $plugins['all'][ $plugin_file ];
				}
			}
		}
	}

	if ( ! $screen->in_admin( 'network' ) ) {
		$show = current_user_can( 'manage_network_plugins' );
		/**
		 * Filters whether to display network-active plugins alongside plugins active for the current site.
		 *
		 * This also controls the display of inactive network-only plugins (plugins with
		 * "Network: true" in the plugin header).
		 *
		 * Plugins cannot be network-activated or network-deactivated from this screen.
		 *
		 * @since 4.4.0
		 *
		 * @param bool $show Whether to show network-active plugins. Default is whether the current
		 *                   user can manage network plugins (ie. a Super Admin).
		 */
		$show_network_active = apply_filters( 'show_network_active_plugins', $show );
	}

	if ( $screen->in_admin( 'network' ) ) {
		$recently_activated = get_site_option( 'recently_activated', array() );
	} else {
		$recently_activated = get_option( 'recently_activated', array() );
	}

	foreach ( $recently_activated as $key => $time ) {
		if ( $time + WEEK_IN_SECONDS < time() ) {
			unset( $recently_activated[ $key ] );
		}
	}

	if ( $screen->in_admin( 'network' ) ) {
		update_site_option( 'recently_activated', $recently_activated );
	} else {
		update_option( 'recently_activated', $recently_activated, false );
	}

	$plugin_info = get_site_transient( 'update_plugins' );

	foreach ( (array) $plugins['all'] as $plugin_file => $plugin_data ) {
		// Extra info if known. array_merge() ensures $plugin_data has precedence if keys collide.
		if ( isset( $plugin_info->response[ $plugin_file ] ) ) {
			$plugin_data = array_merge( (array) $plugin_info->response[ $plugin_file ], array( 'update-supported' => true ), $plugin_data );
		} elseif ( isset( $plugin_info->no_update[ $plugin_file ] ) ) {
			$plugin_data = array_merge( (array) $plugin_info->no_update[ $plugin_file ], array( 'update-supported' => true ), $plugin_data );
		} elseif ( empty( $plugin_data['update-supported'] ) ) {
			$plugin_data['update-supported'] = false;
		}

		/*
		 * Create the payload that's used for the auto_update_plugin filter.
		 * This is the same data contained within $plugin_info->(response|no_update) however
		 * not all plugins will be contained in those keys, this avoids unexpected warnings.
		 */
		$filter_payload = array(
			'id'            => $plugin_file,
			'slug'          => '',
			'plugin'        => $plugin_file,
			'new_version'   => '',
			'url'           => '',
			'package'       => '',
			'icons'         => array(),
			'banners'       => array(),
			'banners_rtl'   => array(),
			'tested'        => '',
			'requires_php'  => '',
			'compatibility' => new stdClass(),
		);

		$filter_payload = (object) wp_parse_args( $plugin_data, $filter_payload );

		$auto_update_forced = wp_is_auto_update_forced_for_item( 'plugin', null, $filter_payload );

		if ( ! is_null( $auto_update_forced ) ) {
			$plugin_data['auto-update-forced'] = $auto_update_forced;
		}

		$plugins['all'][ $plugin_file ] = $plugin_data;
		// Make sure that $plugins['upgrade'] also receives the extra info since it is used on ?plugin_status=upgrade.
		if ( isset( $plugins['upgrade'][ $plugin_file ] ) ) {
			$plugins['upgrade'][ $plugin_file ] = $plugin_data;
		}

		// Filter into individual sections.
		if ( is_multisite() && ! $screen->in_admin( 'network' ) && is_network_only_plugin( $plugin_file ) && ! is_plugin_active( $plugin_file ) ) {
			if ( $show_network_active ) {
				// On the non-network screen, show inactive network-only plugins if allowed.
				$plugins['inactive'][ $plugin_file ] = $plugin_data;
			} else {
				// On the non-network screen, filter out network-only plugins as long as they're not individually active.
				unset( $plugins['all'][ $plugin_file ] );
			}
		} elseif ( ! $screen->in_admin( 'network' ) && is_plugin_active_for_network( $plugin_file ) ) {
			if ( $show_network_active ) {
				// On the non-network screen, show network-active plugins if allowed.
				$plugins['active'][ $plugin_file ] = $plugin_data;
			} else {
				// On the non-network screen, filter out network-active plugins.
				unset( $plugins['all'][ $plugin_file ] );
			}
		} elseif ( ( ! $screen->in_admin( 'network' ) && is_plugin_active( $plugin_file ) )
			|| ( $screen->in_admin( 'network' ) && is_plugin_active_for_network( $plugin_file ) ) ) {
			/*
			 * On the non-network screen, populate the active list with plugins that are individually activated.
			 * On the network admin screen, populate the active list with plugins that are network-activated.
			 */
			$plugins['active'][ $plugin_file ] = $plugin_data;

			if ( ! $screen->in_admin( 'network' ) && is_plugin_paused( $plugin_file ) ) {
				$plugins['paused'][ $plugin_file ] = $plugin_data;
			}
		} else {
			if ( isset( $recently_activated[ $plugin_file ] ) ) {
				// Populate the recently activated list with plugins that have been recently activated.
				$plugins['recently_activated'][ $plugin_file ] = $plugin_data;
			}
			// Populate the inactive list with plugins that aren't activated.
			$plugins['inactive'][ $plugin_file ] = $plugin_data;
		}

		if ( $this->show_autoupdates ) {
			$enabled = in_array( $plugin_file, $auto_updates, true ) && $plugin_data['update-supported'];
			if ( isset( $plugin_data['auto-update-forced'] ) ) {
				$enabled = (bool) $plugin_data['auto-update-forced'];
			}

			if ( $enabled ) {
				$plugins['auto-update-enabled'][ $plugin_file ] = $plugin_data;
			} else {
				$plugins['auto-update-disabled'][ $plugin_file ] = $plugin_data;
			}
		}
	}

	if ( strlen( $s ) ) {
		$status            = 'search';
		$plugins['search'] = array_filter( $plugins['all'], array( $this, '_search_callback' ) );
	}

	/**
	 * Filters the array of plugins for the list table.
	 *
	 * @since 6.3.0
	 *
	 * @param array[] $plugins An array of arrays of plugin data, keyed by context.
	 */
	$plugins = apply_filters( 'plugins_list', $plugins );

	$totals = array();
	foreach ( $plugins as $type => $list ) {
		$totals[ $type ] = count( $list );
	}

	if ( empty( $plugins[ $status ] ) && ! in_array( $status, array( 'all', 'search' ), true ) ) {
		$status = 'all';
	}

	$this->items = array();
	foreach ( $plugins[ $status ] as $plugin_file => $plugin_data ) {
		// Translate, don't apply markup, sanitize HTML.
		$this->items[ $plugin_file ] = _get_plugin_data_markup_translate( $plugin_file, $plugin_data, false, true );
	}

	$total_this_page = $totals[ $status ];

	$js_plugins = array();
	foreach ( $plugins as $key => $list ) {
		$js_plugins[ $key ] = array_keys( $list );
	}

	wp_localize_script(
		'updates',
		'_wpUpdatesItemCounts',
		array(
			'plugins' => $js_plugins,
			'totals'  => wp_get_update_data(),
		)
	);

	if ( ! $orderby ) {
		$orderby = 'Name';
	} else {
		$orderby = ucfirst( $orderby );
	}

	$order = strtoupper( $order );

	uasort( $this->items, array( $this, '_order_callback' ) );

	$plugins_per_page = $this->get_items_per_page( str_replace( '-', '_', $screen->id . '_per_page' ), 999 );

	$start = ( $page - 1 ) * $plugins_per_page;

	if ( $total_this_page > $plugins_per_page ) {
		$this->items = array_slice( $this->items, $start, $plugins_per_page );
	}

	$this->set_pagination_args(
		array(
			'total_items' => $total_this_page,
			'per_page'    => $plugins_per_page,
		)
	);
}

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Hooks

apply_filters( ‘all_plugins’, array $all_plugins )

Filters the full array of plugins to list in the Plugins list table.

apply_filters( ‘plugins_list’, array[] $plugins )

Filters the array of plugins for the list table.

apply_filters( ‘show_advanced_plugins’, bool $show, string $type )

Filters whether to display the advanced plugins list table.

apply_filters( ‘show_network_active_plugins’, bool $show )

Filters whether to display network-active plugins alongside plugins active for the current site.