<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName

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// phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.

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use Automattic\Jetpack\Assets;

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/*

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Plugin Name: The Neverending Home Page.

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Plugin URI: https://automattic.com/

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Description: Adds infinite scrolling support to the front-end blog post view for themes, pulling the next set of posts automatically into view when the reader approaches the bottom of the page.

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Version: 1.1

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Author: Automattic

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Author URI: https://automattic.com/

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License: GNU General Public License v2 or later

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License URI: https://www.gnu.org/licenses/gpl-2.0.html

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Text Domain: jetpack

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*/

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/**

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* Class: The_Neverending_Home_Page relies on add_theme_support, expects specific

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* styling from each theme; including fixed footer.

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*

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* @phan-constructor-used-for-side-effects

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*/

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class The_Neverending_Home_Page {

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/**

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* Maximum allowed number of posts per page in $_REQUEST.

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*/

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const MAX_ALLOWED_POSTS_PER_PAGE_ΙΝ_REQUEST = 5000;

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/**

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* Register actions and filters, plus parse IS settings

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*

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* @uses add_action, add_filter, self::get_settings

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*/

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public function __construct() {

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add_action( 'pre_get_posts', array( $this, 'posts_per_page_query' ) );

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add_action( 'admin_init', array( $this, 'settings_api_init' ) );

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add_action( 'template_redirect', array( $this, 'action_template_redirect' ) );

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add_action( 'customize_preview_init', array( $this, 'init_customizer_assets' ) );

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add_action( 'template_redirect', array( $this, 'ajax_response' ) );

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add_action( 'custom_ajax_infinite_scroll', array( $this, 'query' ) );

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add_filter( 'infinite_scroll_query_args', array( $this, 'inject_query_args' ) );

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add_filter( 'infinite_scroll_allowed_vars', array( $this, 'allowed_query_vars' ) );

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add_action( 'the_post', array( $this, 'preserve_more_tag' ) );

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add_action( 'wp_footer', array( $this, 'footer' ) );

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add_filter( 'infinite_scroll_additional_scripts', array( $this, 'add_mejs_config' ) );

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// Plugin compatibility

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add_filter( 'grunion_contact_form_redirect_url', array( $this, 'filter_grunion_redirect_url' ) );

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// AMP compatibility

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// needs to happen after parse_query so that Jetpack_AMP_Support::is_amp_request() is ready.

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add_action( 'wp', array( $this, 'amp_load_hooks' ) );

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// Parse IS settings from theme

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self::get_settings();

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}

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/**

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* Initialize our static variables

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*/

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/**

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* The time.

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*

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* @var null - I don't think this is used?

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*/

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public static $the_time = null;

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/**

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* Settings.

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*

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* Don't access directly, instead use self::get_settings().

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*

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* @var array

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*/

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public static $settings = null;

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/**

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* The enabled option name.

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*

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* @var string

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*/

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public static $option_name_enabled = 'infinite_scroll';

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/**

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* Parse IS settings provided by theme

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*

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* @uses get_theme_support, infinite_scroll_has_footer_widgets, sanitize_title, add_action, get_option, wp_parse_args, is_active_sidebar

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* @return object

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*/

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public static function get_settings() {

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$defaults = array(

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'type' => 'scroll', // scroll | click

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'requested_type' => 'scroll', // store the original type for use when logic overrides it

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'footer_widgets' => false, // true | false | sidebar_id | array of sidebar_ids -- last two are checked with is_active_sidebar

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'container' => 'content', // container html id

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'wrapper' => true, // true | false | html class -- the html class.

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'render' => false, // optional function, otherwise the `content` template part will be used

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'footer' => true, // boolean to enable or disable the infinite footer | string to provide an html id to derive footer width from

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'footer_callback' => false, // function to be called to render the IS footer, in place of the default

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'posts_per_page' => false, // phpcs:ignore WordPress.WP.PostsPerPage.posts_per_page_posts_per_page -- int | false to set based on IS type

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'click_handle' => true, // boolean to enable or disable rendering the click handler div. If type is click and this is false, page must include its own trigger with the HTML ID `infinite-handle`.

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);

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if ( self::$settings === null ) {

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$css_pattern = '#[^A-Z\d\-_]#i';

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$settings = $defaults;

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// Validate settings passed through add_theme_support()

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$_settings = get_theme_support( 'infinite-scroll' );

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if ( is_array( $_settings ) ) {

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// Preferred implementation, where theme provides an array of options

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if ( isset( $_settings[0] ) && is_array( $_settings[0] ) ) {

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foreach ( $_settings[0] as $key => $value ) {

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switch ( $key ) {

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case 'type':

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if ( in_array( $value, array( 'scroll', 'click' ), true ) ) {

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$settings['requested_type'] = $value;

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$settings[ $key ] = $settings['requested_type'];

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}

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break;

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case 'footer_widgets':

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if ( is_string( $value ) ) {

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$settings[ $key ] = sanitize_title( $value );

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} elseif ( is_array( $value ) ) {

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$settings[ $key ] = array_map( 'sanitize_title', $value );

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} elseif ( is_bool( $value ) ) {

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$settings[ $key ] = $value;

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}

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break;

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case 'container':

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case 'wrapper':

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if ( 'wrapper' === $key && is_bool( $value ) ) {

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$settings[ $key ] = $value;

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} else {

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$value = preg_replace( $css_pattern, '', $value );

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if ( ! empty( $value ) ) {

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$settings[ $key ] = $value;

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}

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}

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break;

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case 'render':

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if ( false !== $value && is_callable( $value ) ) {

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$settings[ $key ] = $value;

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}

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break;

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case 'footer':

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if ( is_bool( $value ) ) {

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$settings[ $key ] = $value;

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} elseif ( is_string( $value ) ) {

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$value = preg_replace( $css_pattern, '', $value );

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if ( ! empty( $value ) ) {

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$settings[ $key ] = $value;

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}

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}

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break;

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case 'footer_callback':

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if ( is_callable( $value ) ) {

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$settings[ $key ] = $value;

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} else {

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$settings[ $key ] = false;

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}

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break;

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case 'posts_per_page':

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if ( is_numeric( $value ) ) {

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$settings[ $key ] = (int) $value;

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}

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break;

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case 'click_handle':

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if ( is_bool( $value ) ) {

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$settings[ $key ] = $value;

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}

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break;

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default:

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break;

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}

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}

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} elseif ( is_string( $_settings[0] ) ) {

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// Checks below are for backwards compatibility

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// Container to append new posts to

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$settings['container'] = preg_replace( $css_pattern, '', $_settings[0] );

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// Wrap IS elements?

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if ( isset( $_settings[1] ) ) {

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$settings['wrapper'] = (bool) $_settings[1];

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}

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}

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}

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// Always ensure all values are present in the final array

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$settings = wp_parse_args( $settings, $defaults );

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// Check if a legacy `infinite_scroll_has_footer_widgets()` function is defined and override the footer_widgets parameter's value.

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// Otherwise, if a widget area ID or array of IDs was provided in the footer_widgets parameter, check if any contains any widgets.

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// It is safe to use `is_active_sidebar()` before the sidebar is registered as this function doesn't check for a sidebar's existence when determining if it contains any widgets.

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if ( function_exists( 'infinite_scroll_has_footer_widgets' ) ) {

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// @phan-suppress-next-line PhanUndeclaredFunction -- Checked above. See also https://github.com/phan/phan/issues/1204.

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$settings['footer_widgets'] = (bool) infinite_scroll_has_footer_widgets();

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} elseif ( is_array( $settings['footer_widgets'] ) ) {

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$sidebar_ids = $settings['footer_widgets'];

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$settings['footer_widgets'] = false;

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foreach ( $sidebar_ids as $sidebar_id ) {

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if ( is_active_sidebar( $sidebar_id ) ) {

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$settings['footer_widgets'] = true;

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break;

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}

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}

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unset( $sidebar_ids );

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unset( $sidebar_id );

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} elseif ( is_string( $settings['footer_widgets'] ) ) {

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$settings['footer_widgets'] = (bool) is_active_sidebar( $settings['footer_widgets'] );

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}

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/**

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* Filter Infinite Scroll's `footer_widgets` parameter.

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*

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* @module infinite-scroll

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*

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* @since 2.0.0

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*

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* @param bool $settings['footer_widgets'] Does the current theme have Footer Widgets.

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*/

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$settings['footer_widgets'] = apply_filters( 'infinite_scroll_has_footer_widgets', $settings['footer_widgets'] );

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// Finally, after all of the sidebar checks and filtering, ensure that a boolean value is present, otherwise set to default of `false`.

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if ( ! is_bool( $settings['footer_widgets'] ) ) {

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$settings['footer_widgets'] = false;

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}

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// Ensure that IS is enabled and no footer widgets exist if the IS type isn't already "click".

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if ( 'click' !== $settings['type'] ) {

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// Check the setting status

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$disabled = '' === get_option( self::$option_name_enabled ) ? true : false;

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// Footer content or Reading option check

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if ( $settings['footer_widgets'] || $disabled ) {

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$settings['type'] = 'click';

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}

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}

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// Force display of the click handler and attendant bits when the type isn't `click`

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if ( 'click' !== $settings['type'] ) {

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$settings['click_handle'] = true;

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}

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// Store final settings in a class static to avoid reparsing

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self::$settings = $settings;

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}

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/**

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* Filter the array of Infinite Scroll settings.

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*

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* @module infinite-scroll

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*

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* @since 2.0.0

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*

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* @param array $settings Array of Infinite Scroll settings.

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*/

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$filtered_settings = apply_filters( 'infinite_scroll_settings', self::$settings );

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// Ensure all properties are still set.

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return (object) wp_parse_args( $filtered_settings, $defaults );

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}

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/**

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* Number of posts per page.

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*

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* @uses self::wp_query, self::get_settings, apply_filters

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* @return int

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*/

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public static function posts_per_page() {

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$settings = self::get_settings();

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$posts_per_page = $settings->posts_per_page ? $settings->posts_per_page : self::wp_query()->get( 'posts_per_page' );

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$posts_per_page_core_option = get_option( 'posts_per_page' );

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// If Infinite Scroll is set to click, and if the site owner changed posts_per_page, let's use that.

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if (

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'click' === $settings->type

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&& ( '10' !== $posts_per_page_core_option )

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) {

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$posts_per_page = $posts_per_page_core_option;

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}

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// Take JS query into consideration here.

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$posts_per_page_in_request = isset( $_REQUEST['query_args']['posts_per_page'] ) ? (int) $_REQUEST['query_args']['posts_per_page'] : 0; // phpcs:ignore WordPress.Security.NonceVerification.Recommended

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if ( $posts_per_page_in_request > 0 &&

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self::MAX_ALLOWED_POSTS_PER_PAGE_ΙΝ_REQUEST >= $posts_per_page_in_request

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) {

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$posts_per_page = $posts_per_page_in_request;

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}

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/**

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* Filter the number of posts per page.

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*

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* @module infinite-scroll

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*

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* @since 6.0.0

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*

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* @param int $posts_per_page The number of posts to display per page.

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*/

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return (int) apply_filters( 'infinite_scroll_posts_per_page', $posts_per_page );

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}

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/**

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* Retrieve the query used with Infinite Scroll

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*

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* @global $wp_the_query

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* @uses apply_filters

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* @return object

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*/

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public static function wp_query() {

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global $wp_the_query;

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/**

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* Filter the Infinite Scroll query object.

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*

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* @module infinite-scroll

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*

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* @since 2.2.1

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*

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* @param WP_Query $wp_the_query WP Query.

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*/

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return apply_filters( 'infinite_scroll_query_object', $wp_the_query );

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}

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/**

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* Has infinite scroll been triggered?

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*/

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public static function got_infinity() {

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/**

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* Filter the parameter used to check if Infinite Scroll has been triggered.

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*

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* @module infinite-scroll

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*

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* @since 3.9.0

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*

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* @param bool isset( $_GET[ 'infinity' ] ) Return true if the "infinity" parameter is set.

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*/

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return apply_filters( 'infinite_scroll_got_infinity', isset( $_GET['infinity'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no changes made to the site.

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}

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/**

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* Is this guaranteed to be the last batch of posts?

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*/

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public static function is_last_batch() {

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/**

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* Override whether or not this is the last batch for a request

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*

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* @module infinite-scroll

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*

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* @since 4.8.0

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*

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* @param bool|null null Bool if value should be overridden, null to determine from query

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* @param object self::wp_query() WP_Query object for current request

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* @param object self::get_settings() Infinite Scroll settings

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*/

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$override = apply_filters( 'infinite_scroll_is_last_batch', null, self::wp_query(), self::get_settings() ); // phpcs:ignore WordPress.WP.ClassNameCase.Incorrect -- False positive.

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if ( is_bool( $override ) ) {

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return $override;

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}

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$entries = (int) self::wp_query()->found_posts;

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$posts_per_page = self::posts_per_page();

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// This is to cope with an issue in certain themes or setups where posts are returned but found_posts is 0.

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if ( 0 === $entries ) {

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return (bool) ( ! is_countable( self::wp_query()->posts ) || ( count( self::wp_query()->posts ) < $posts_per_page ) );

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}

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$paged = max( 1, (int) self::wp_query()->get( 'paged' ) );

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// Are there enough posts for more than the first page?

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if ( $entries <= $posts_per_page ) {

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return true;

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}

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// Calculate entries left after a certain number of pages

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if ( $paged && $paged > 1 ) {

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$entries -= $posts_per_page * $paged;

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}

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// Are there some entries left to display?

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return $entries <= 0;

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}

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/**

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* The more tag will be ignored by default if the blog page isn't our homepage.

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* Let's force the $more global to false.

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*

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* @param array $array - the_post array.

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* @return array

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*/

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public function preserve_more_tag( $array ) {

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global $more;

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if ( self::got_infinity() ) {

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$more = 0; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited -- 0 = show content up to the more tag. Add more link.

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}

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return $array;

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}

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/**

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* Add a checkbox field to Settings > Reading

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* for enabling infinite scroll.

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*

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* Only show if the current theme supports infinity.

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*

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* @uses current_theme_supports, add_settings_field, __, register_setting

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* @action admin_init

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* @return null

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*/

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public function settings_api_init() {

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if ( ! current_theme_supports( 'infinite-scroll' ) ) {

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return;

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}

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// Add the setting field [infinite_scroll] and place it in Settings > Reading

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add_settings_field( self::$option_name_enabled, '<span id="infinite-scroll-options">' . esc_html__( 'Infinite Scroll Behavior', 'jetpack' ) . '</span>', array( $this, 'infinite_setting_html' ), 'reading' );

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register_setting( 'reading', self::$option_name_enabled, 'esc_attr' );

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}

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/**

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* HTML code to display a checkbox true/false option

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* for the infinite_scroll setting.

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*/

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public function infinite_setting_html() {

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$settings = self::get_settings();

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// If the blog has footer widgets, show a notice instead of the checkbox

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if ( $settings->footer_widgets || 'click' === $settings->requested_type ) {

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echo '<label><em>' . esc_html__( 'We&rsquo;ve changed this option to a click-to-scroll version for you since you have footer widgets in Appearance &rarr; Widgets, or your theme uses click-to-scroll as the default behavior.', 'jetpack' ) . '</em></label>';

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} else {

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echo '<label><input name="infinite_scroll" type="checkbox" value="1" ' . checked( 1, '' !== get_option( self::$option_name_enabled ), false ) . ' /> ' . esc_html__( 'Check to load posts as you scroll. Uncheck to show clickable button to load posts', 'jetpack' ) . '</label>';

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// translators: the number of posts to show on each page load.

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echo '<p class="description">' . esc_html( sprintf( _n( 'Shows %s post on each load.', 'Shows %s posts on each load.', self::posts_per_page(), 'jetpack' ), number_format_i18n( self::posts_per_page() ) ) ) . '</p>';

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}

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}

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[460] Fix | Delete

/**

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* Does the legwork to determine whether the feature is enabled.

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*

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* @uses current_theme_supports, self::archive_supports_infinity, self::get_settings, add_filter, wp_enqueue_script, plugins_url, wp_enqueue_style, add_action

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* @action template_redirect

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* @return null

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*/

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public function action_template_redirect() {

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// Check that we support infinite scroll, and are on the home page.

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if ( ! current_theme_supports( 'infinite-scroll' ) || ! self::archive_supports_infinity() ) {

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return;

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}

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$id = self::get_settings()->container;

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// Check that we have an id.

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if ( empty( $id ) ) {

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return;

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}

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// AMP infinite scroll functionality will start on amp_load_hooks().

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if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {

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return;

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}

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// Add our scripts.

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wp_register_script(

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'the-neverending-homepage',

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Assets::get_file_url_for_environment(

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'_inc/build/infinite-scroll/infinity.min.js',

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'modules/infinite-scroll/infinity.js'

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),

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array(),

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JETPACK__VERSION . '-is5.0.1', // Added for ability to cachebust on WP.com.

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true

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);

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// Add our default styles.

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wp_register_style( 'the-neverending-homepage', plugins_url( 'infinity.css', __FILE__ ), array(), '20140422' );

[499] Fix | Delete