Mini Shell
<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
// phpcs:disable Universal.Files.SeparateFunctionsFromOO.Mixed -- TODO: Move classes to appropriately-named class files.
use Automattic\Jetpack\Assets;
use Automattic\Jetpack\Redirect;
/*
Plugin Name: The Neverending Home Page.
Plugin URI: https://automattic.com/
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.
Version: 1.1
Author: Automattic
Author URI: https://automattic.com/
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: jetpack
*/
/**
* Class: The_Neverending_Home_Page relies on add_theme_support, expects specific
* styling from each theme; including fixed footer.
*/
class The_Neverending_Home_Page {
/**
* Maximum allowed number of posts per page in $_REQUEST.
*/
const MAX_ALLOWED_POSTS_PER_PAGE_ΙΝ_REQUEST = 5000;
/**
* Register actions and filters, plus parse IS settings
*
* @uses add_action, add_filter, self::get_settings
*/
public function __construct() {
add_action( 'pre_get_posts', array( $this, 'posts_per_page_query' ) );
add_action( 'admin_init', array( $this, 'settings_api_init' ) );
add_action( 'template_redirect', array( $this, 'action_template_redirect' ) );
add_action( 'customize_preview_init', array( $this, 'init_customizer_assets' ) );
add_action( 'template_redirect', array( $this, 'ajax_response' ) );
add_action( 'custom_ajax_infinite_scroll', array( $this, 'query' ) );
add_filter( 'infinite_scroll_query_args', array( $this, 'inject_query_args' ) );
add_filter( 'infinite_scroll_allowed_vars', array( $this, 'allowed_query_vars' ) );
add_action( 'the_post', array( $this, 'preserve_more_tag' ) );
add_action( 'wp_footer', array( $this, 'footer' ) );
add_filter( 'infinite_scroll_additional_scripts', array( $this, 'add_mejs_config' ) );
// Plugin compatibility
add_filter( 'grunion_contact_form_redirect_url', array( $this, 'filter_grunion_redirect_url' ) );
// AMP compatibility
// needs to happen after parse_query so that Jetpack_AMP_Support::is_amp_request() is ready.
add_action( 'wp', array( $this, 'amp_load_hooks' ) );
// Parse IS settings from theme
self::get_settings();
}
/**
* Initialize our static variables
*/
/**
* The time.
*
* @var null - I don't think this is used?
*/
public static $the_time = null;
/**
* Settings.
*
* Don't access directly, instead use self::get_settings().
*
* @var array
*/
public static $settings = null;
/**
* The enabled option name.
*
* @var string
*/
public static $option_name_enabled = 'infinite_scroll';
/**
* Parse IS settings provided by theme
*
* @uses get_theme_support, infinite_scroll_has_footer_widgets, sanitize_title, add_action, get_option, wp_parse_args, is_active_sidebar
* @return object
*/
public static function get_settings() {
if ( self::$settings === null ) {
$css_pattern = '#[^A-Z\d\-_]#i';
$defaults = array(
'type' => 'scroll', // scroll | click
'requested_type' => 'scroll', // store the original type for use when logic overrides it
'footer_widgets' => false, // true | false | sidebar_id | array of sidebar_ids -- last two are checked with is_active_sidebar
'container' => 'content', // container html id
'wrapper' => true, // true | false | html class -- the html class.
'render' => false, // optional function, otherwise the `content` template part will be used
'footer' => true, // boolean to enable or disable the infinite footer | string to provide an html id to derive footer width from
'footer_callback' => false, // function to be called to render the IS footer, in place of the default
'posts_per_page' => false, // phpcs:ignore WordPress.WP.PostsPerPage.posts_per_page_posts_per_page -- int | false to set based on IS type
'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`.
);
$settings = $defaults;
// Validate settings passed through add_theme_support()
$_settings = get_theme_support( 'infinite-scroll' );
if ( is_array( $_settings ) ) {
// Preferred implementation, where theme provides an array of options
if ( isset( $_settings[0] ) && is_array( $_settings[0] ) ) {
foreach ( $_settings[0] as $key => $value ) {
switch ( $key ) {
case 'type':
if ( in_array( $value, array( 'scroll', 'click' ), true ) ) {
$settings['requested_type'] = $value;
$settings[ $key ] = $settings['requested_type'];
}
break;
case 'footer_widgets':
if ( is_string( $value ) ) {
$settings[ $key ] = sanitize_title( $value );
} elseif ( is_array( $value ) ) {
$settings[ $key ] = array_map( 'sanitize_title', $value );
} elseif ( is_bool( $value ) ) {
$settings[ $key ] = $value;
}
break;
case 'container':
case 'wrapper':
if ( 'wrapper' === $key && is_bool( $value ) ) {
$settings[ $key ] = $value;
} else {
$value = preg_replace( $css_pattern, '', $value );
if ( ! empty( $value ) ) {
$settings[ $key ] = $value;
}
}
break;
case 'render':
if ( false !== $value && is_callable( $value ) ) {
$settings[ $key ] = $value;
}
break;
case 'footer':
if ( is_bool( $value ) ) {
$settings[ $key ] = $value;
} elseif ( is_string( $value ) ) {
$value = preg_replace( $css_pattern, '', $value );
if ( ! empty( $value ) ) {
$settings[ $key ] = $value;
}
}
break;
case 'footer_callback':
if ( is_callable( $value ) ) {
$settings[ $key ] = $value;
} else {
$settings[ $key ] = false;
}
break;
case 'posts_per_page':
if ( is_numeric( $value ) ) {
$settings[ $key ] = (int) $value;
}
break;
case 'click_handle':
if ( is_bool( $value ) ) {
$settings[ $key ] = $value;
}
break;
default:
break;
}
}
} elseif ( is_string( $_settings[0] ) ) {
// Checks below are for backwards compatibility
// Container to append new posts to
$settings['container'] = preg_replace( $css_pattern, '', $_settings[0] );
// Wrap IS elements?
if ( isset( $_settings[1] ) ) {
$settings['wrapper'] = (bool) $_settings[1];
}
}
}
// Always ensure all values are present in the final array
$settings = wp_parse_args( $settings, $defaults );
// Check if a legacy `infinite_scroll_has_footer_widgets()` function is defined and override the footer_widgets parameter's value.
// Otherwise, if a widget area ID or array of IDs was provided in the footer_widgets parameter, check if any contains any widgets.
// 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.
if ( function_exists( 'infinite_scroll_has_footer_widgets' ) ) {
$settings['footer_widgets'] = (bool) infinite_scroll_has_footer_widgets();
} elseif ( is_array( $settings['footer_widgets'] ) ) {
$sidebar_ids = $settings['footer_widgets'];
$settings['footer_widgets'] = false;
foreach ( $sidebar_ids as $sidebar_id ) {
if ( is_active_sidebar( $sidebar_id ) ) {
$settings['footer_widgets'] = true;
break;
}
}
unset( $sidebar_ids );
unset( $sidebar_id );
} elseif ( is_string( $settings['footer_widgets'] ) ) {
$settings['footer_widgets'] = (bool) is_active_sidebar( $settings['footer_widgets'] );
}
/**
* Filter Infinite Scroll's `footer_widgets` parameter.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param bool $settings['footer_widgets'] Does the current theme have Footer Widgets.
*/
$settings['footer_widgets'] = apply_filters( 'infinite_scroll_has_footer_widgets', $settings['footer_widgets'] );
// Finally, after all of the sidebar checks and filtering, ensure that a boolean value is present, otherwise set to default of `false`.
if ( ! is_bool( $settings['footer_widgets'] ) ) {
$settings['footer_widgets'] = false;
}
// Ensure that IS is enabled and no footer widgets exist if the IS type isn't already "click".
if ( 'click' !== $settings['type'] ) {
// Check the setting status
$disabled = '' === get_option( self::$option_name_enabled ) ? true : false;
// Footer content or Reading option check
if ( $settings['footer_widgets'] || $disabled ) {
$settings['type'] = 'click';
}
}
// Force display of the click handler and attendant bits when the type isn't `click`
if ( 'click' !== $settings['type'] ) {
$settings['click_handle'] = true;
}
// Store final settings in a class static to avoid reparsing
/**
* Filter the array of Infinite Scroll settings.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param array $settings Array of Infinite Scroll settings.
*/
self::$settings = apply_filters( 'infinite_scroll_settings', $settings );
}
/** This filter is already documented in modules/infinite-scroll/infinity.php */
return (object) apply_filters( 'infinite_scroll_settings', self::$settings );
}
/**
* Number of posts per page.
*
* @uses self::wp_query, self::get_settings, apply_filters
* @return int
*/
public static function posts_per_page() {
$posts_per_page = self::get_settings()->posts_per_page ? self::get_settings()->posts_per_page : self::wp_query()->get( 'posts_per_page' );
$posts_per_page_core_option = get_option( 'posts_per_page' );
// If Infinite Scroll is set to click, and if the site owner changed posts_per_page, let's use that.
if (
'click' === self::get_settings()->type
&& ( '10' !== $posts_per_page_core_option )
) {
$posts_per_page = $posts_per_page_core_option;
}
// Take JS query into consideration here.
$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
if ( $posts_per_page_in_request > 0 &&
self::MAX_ALLOWED_POSTS_PER_PAGE_ΙΝ_REQUEST >= $posts_per_page_in_request
) {
$posts_per_page = $posts_per_page_in_request;
}
/**
* Filter the number of posts per page.
*
* @module infinite-scroll
*
* @since 6.0.0
*
* @param int $posts_per_page The number of posts to display per page.
*/
return (int) apply_filters( 'infinite_scroll_posts_per_page', $posts_per_page );
}
/**
* Retrieve the query used with Infinite Scroll
*
* @global $wp_the_query
* @uses apply_filters
* @return object
*/
public static function wp_query() {
global $wp_the_query;
/**
* Filter the Infinite Scroll query object.
*
* @module infinite-scroll
*
* @since 2.2.1
*
* @param WP_Query $wp_the_query WP Query.
*/
return apply_filters( 'infinite_scroll_query_object', $wp_the_query );
}
/**
* Has infinite scroll been triggered?
*/
public static function got_infinity() {
/**
* Filter the parameter used to check if Infinite Scroll has been triggered.
*
* @module infinite-scroll
*
* @since 3.9.0
*
* @param bool isset( $_GET[ 'infinity' ] ) Return true if the "infinity" parameter is set.
*/
return apply_filters( 'infinite_scroll_got_infinity', isset( $_GET['infinity'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no changes made to the site.
}
/**
* Is this guaranteed to be the last batch of posts?
*/
public static function is_last_batch() {
/**
* Override whether or not this is the last batch for a request
*
* @module infinite-scroll
*
* @since 4.8.0
*
* @param bool|null null Bool if value should be overridden, null to determine from query
* @param object self::wp_query() WP_Query object for current request
* @param object self::get_settings() Infinite Scroll settings
*/
$override = apply_filters( 'infinite_scroll_is_last_batch', null, self::wp_query(), self::get_settings() ); // phpcs:ignore WordPress.WP.ClassNameCase.Incorrect -- False positive.
if ( is_bool( $override ) ) {
return $override;
}
$entries = (int) self::wp_query()->found_posts;
$posts_per_page = self::posts_per_page();
// This is to cope with an issue in certain themes or setups where posts are returned but found_posts is 0.
if ( 0 === $entries ) {
return (bool) ( count( self::wp_query()->posts ) < $posts_per_page );
}
$paged = max( 1, self::wp_query()->get( 'paged' ) );
// Are there enough posts for more than the first page?
if ( $entries <= $posts_per_page ) {
return true;
}
// Calculate entries left after a certain number of pages
if ( $paged && $paged > 1 ) {
$entries -= $posts_per_page * $paged;
}
// Are there some entries left to display?
return $entries <= 0;
}
/**
* The more tag will be ignored by default if the blog page isn't our homepage.
* Let's force the $more global to false.
*
* @param array $array - the_post array.
* @return array
*/
public function preserve_more_tag( $array ) {
global $more;
if ( self::got_infinity() ) {
$more = 0; // phpcs:ignore WordPress.WP.GlobalVariablesOverride.Prohibited -- 0 = show content up to the more tag. Add more link.
}
return $array;
}
/**
* Add a checkbox field to Settings > Reading
* for enabling infinite scroll.
*
* Only show if the current theme supports infinity.
*
* @uses current_theme_supports, add_settings_field, __, register_setting
* @action admin_init
* @return null
*/
public function settings_api_init() {
if ( ! current_theme_supports( 'infinite-scroll' ) ) {
return;
}
if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) {
// This setting is no longer configurable in wp-admin on WordPress.com -- leave a pointer
add_settings_field(
self::$option_name_enabled,
'<span id="infinite-scroll-options">' . esc_html__( 'Infinite Scroll Behavior', 'jetpack' ) . '</span>',
array( $this, 'infinite_setting_html_calypso_placeholder' ),
'reading'
);
return;
}
// Add the setting field [infinite_scroll] and place it in Settings > Reading
add_settings_field( self::$option_name_enabled, '<span id="infinite-scroll-options">' . esc_html__( 'Infinite Scroll Behavior', 'jetpack' ) . '</span>', array( $this, 'infinite_setting_html' ), 'reading' );
register_setting( 'reading', self::$option_name_enabled, 'esc_attr' );
}
/**
* Render the redirect link to the infinite scroll settings in Calypso.
*/
public function infinite_setting_html_calypso_placeholder() {
$details = get_blog_details();
$writing_url = Redirect::get_url( 'calypso-settings-writing', array( 'site' => $details->domain ) );
echo '<span>' . sprintf(
/* translators: Variables are the enclosing link to the settings page */
esc_html__( 'This option has moved. You can now manage it %1$shere%2$s.', 'jetpack' ),
'<a href="' . esc_url( $writing_url ) . '">',
'</a>'
) . '</span>';
}
/**
* HTML code to display a checkbox true/false option
* for the infinite_scroll setting.
*/
public function infinite_setting_html() {
// If the blog has footer widgets, show a notice instead of the checkbox
if ( self::get_settings()->footer_widgets || 'click' === self::get_settings()->requested_type ) {
echo '<label><em>' . esc_html__( 'We’ve changed this option to a click-to-scroll version for you since you have footer widgets in Appearance → Widgets, or your theme uses click-to-scroll as the default behavior.', 'jetpack' ) . '</em></label>';
} else {
echo '<label><input name="infinite_scroll" type="checkbox" value="1" ' . checked( 1, '' !== get_option( self::$option_name_enabled ), false ) . ' /> ' . esc_html__( 'Check to load posts as you scroll. Uncheck to show clickable button to load posts', 'jetpack' ) . '</label>';
// translators: the number of posts to show on each page load.
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>';
}
}
/**
* Does the legwork to determine whether the feature is enabled.
*
* @uses current_theme_supports, self::archive_supports_infinity, self::get_settings, add_filter, wp_enqueue_script, plugins_url, wp_enqueue_style, add_action
* @action template_redirect
* @return null
*/
public function action_template_redirect() {
// Check that we support infinite scroll, and are on the home page.
if ( ! current_theme_supports( 'infinite-scroll' ) || ! self::archive_supports_infinity() ) {
return;
}
$id = self::get_settings()->container;
// Check that we have an id.
if ( empty( $id ) ) {
return;
}
// AMP infinite scroll functionality will start on amp_load_hooks().
if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {
return;
}
// Add our scripts.
wp_register_script(
'the-neverending-homepage',
Assets::get_file_url_for_environment(
'_inc/build/infinite-scroll/infinity.min.js',
'modules/infinite-scroll/infinity.js'
),
array(),
JETPACK__VERSION . '-is5.0.1', // Added for ability to cachebust on WP.com.
true
);
// Add our default styles.
wp_register_style( 'the-neverending-homepage', plugins_url( 'infinity.css', __FILE__ ), array(), '20140422' );
// Make sure there are enough posts for IS
if ( self::is_last_batch() ) {
return;
}
// Add our scripts.
wp_enqueue_script( 'the-neverending-homepage' );
// Add our default styles.
wp_enqueue_style( 'the-neverending-homepage' );
add_action( 'wp_footer', array( $this, 'action_wp_footer_settings' ), 2 );
add_action( 'wp_footer', array( $this, 'action_wp_footer' ), 21 ); // Core prints footer scripts at priority 20, so we just need to be one later than that
add_filter( 'infinite_scroll_results', array( $this, 'filter_infinite_scroll_results' ), 10, 3 );
}
/**
* Initialize the Customizer logic separately from the main JS.
*
* @since 8.4.0
*/
public function init_customizer_assets() {
// Add our scripts.
wp_register_script(
'the-neverending-homepage-customizer',
Assets::get_file_url_for_environment(
'_inc/build/infinite-scroll/infinity-customizer.min.js',
'modules/infinite-scroll/infinity-customizer.js'
),
array( 'jquery', 'customize-base' ),
JETPACK__VERSION . '-is5.0.0', // Added for ability to cachebust on WP.com.
true
);
wp_enqueue_script( 'the-neverending-homepage-customizer' );
}
/**
* Returns classes to be added to <body>. If it's enabled, 'infinite-scroll'. If set to continuous scroll, adds 'neverending' too.
*
* @since 4.7.0 No longer added as a 'body_class' filter but passed to JS environment and added using JS.
*
* @return string
*/
public function body_class() {
$classes = '';
// Do not add infinity-scroll class if disabled through the Reading page
$disabled = '' === get_option( self::$option_name_enabled ) ? true : false;
if ( ! $disabled || 'click' === self::get_settings()->type ) {
$classes = 'infinite-scroll';
if ( 'scroll' === self::get_settings()->type ) {
$classes .= ' neverending';
}
}
return $classes;
}
/**
* In case IS is activated on search page, we have to exclude initially loaded posts which match the keyword by title, not the content as they are displayed before content-matching ones
*
* @uses self::wp_query
* @uses self::get_last_post_date
* @uses self::has_only_title_matching_posts
* @return array
*/
public function get_excluded_posts() {
$excluded_posts = array();
// loop through posts returned by wp_query call
foreach ( self::wp_query()->get_posts() as $post ) {
$orderby = isset( self::wp_query()->query_vars['orderby'] ) ? self::wp_query()->query_vars['orderby'] : '';
$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false );
if ( 'modified' === $orderby || false === $post_date ) {
$post_date = $post->post_modified;
}
// in case all posts initially displayed match the keyword by title we add em all to excluded posts array
// else, we add only posts which are older than last_post_date param as newer are natually excluded by last_post_date condition in the SQL query
if ( self::has_only_title_matching_posts() || $post_date <= self::get_last_post_date() ) {
array_push( $excluded_posts, $post->ID );
}
}
return $excluded_posts;
}
/**
* In case IS is active on search, we have to exclude posts matched by title rather than by post_content in order to prevent dupes on next pages
*
* @uses self::wp_query
* @uses self::get_excluded_posts
* @return array
*/
public function get_query_vars() {
$query_vars = self::wp_query()->query_vars;
// applies to search page only
if ( true === self::wp_query()->is_search() ) {
// set post__not_in array in query_vars in case it does not exists
if ( false === isset( $query_vars['post__not_in'] ) ) {
$query_vars['post__not_in'] = array();
}
// get excluded posts
$excluded = self::get_excluded_posts();
// merge them with other post__not_in posts (eg.: sticky posts)
$query_vars['post__not_in'] = array_merge( $query_vars['post__not_in'], $excluded );
}
return $query_vars;
}
/**
* This function checks whether all posts returned by initial wp_query match the keyword by title
* The code used in this function is borrowed from WP_Query class where it is used to construct like conditions for keywords
*
* @uses self::wp_query
* @return bool
*/
public function has_only_title_matching_posts() {
// apply following logic for search page results only
if ( false === self::wp_query()->is_search() ) {
return false;
}
// grab the last posts in the stack as if the last one is title-matching the rest is title-matching as well
$post = end( self::wp_query()->posts );
// code inspired by WP_Query class
if ( preg_match_all( '/".*?("|$)|((?<=[\t ",+])|^)[^\t ",+]+/', self::wp_query()->get( 's' ), $matches ) ) {
$search_terms = self::wp_query()->query_vars['search_terms'];
// if the search string has only short terms or stopwords, or is 10+ terms long, match it as sentence
if ( empty( $search_terms ) || count( $search_terms ) > 9 ) {
$search_terms = array( self::wp_query()->get( 's' ) );
}
} else {
$search_terms = array( self::wp_query()->get( 's' ) );
}
// actual testing. As search query combines multiple keywords with AND, it's enough to check if any of the keywords is present in the title
$term = current( $search_terms );
if ( ! empty( $term ) && false !== strpos( $post->post_title, $term ) ) {
return true;
}
return false;
}
/**
* Grab the timestamp for the initial query's last post.
*
* This takes into account the query's 'orderby' parameter and returns
* false if the posts are not ordered by date.
*
* @uses self::got_infinity
* @uses self::has_only_title_matching_posts
* @uses self::wp_query
* @return string 'Y-m-d H:i:s' or false
*/
public function get_last_post_date() {
if ( self::got_infinity() ) {
return;
}
if ( ! self::wp_query()->have_posts() ) {
return null;
}
// In case there are only title-matching posts in the initial WP_Query result, we don't want to use the last_post_date param yet
if ( true === self::has_only_title_matching_posts() ) {
return false;
}
$post = end( self::wp_query()->posts );
$orderby = isset( self::wp_query()->query_vars['orderby'] ) ?
self::wp_query()->query_vars['orderby'] : '';
$post_date = ( ! empty( $post->post_date ) ? $post->post_date : false );
switch ( $orderby ) {
case 'modified':
return $post->post_modified;
case 'date':
case '':
return $post_date;
default:
return false;
}
}
/**
* Returns the appropriate `wp_posts` table field for a given query's
* 'orderby' parameter, if applicable.
*
* @param object $query - an optional query object.
* @uses self::wp_query
* @return string or false
*/
public function get_query_sort_field( $query = null ) {
if ( empty( $query ) ) {
$query = self::wp_query();
}
$orderby = isset( $query->query_vars['orderby'] ) ? $query->query_vars['orderby'] : '';
switch ( $orderby ) {
case 'modified':
return 'post_modified';
case 'date':
case '':
return 'post_date';
default:
return false;
}
}
/**
* Create a where clause that will make sure post queries return posts
* in the correct order, without duplicates, if a new post is added
* and we're sorting by post date.
*
* @global $wpdb
* @param string $where - the where clause.
* @param object $query - the query.
* @uses apply_filters
* @filter posts_where
* @return string
*/
public function query_time_filter( $where, $query ) {
if ( self::got_infinity() ) {
global $wpdb;
$sort_field = self::get_query_sort_field( $query );
if ( 'post_date' !== $sort_field || 'DESC' !== $_REQUEST['query_args']['order'] ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotValidated -- no changes made to the site.
return $where;
}
$query_before = sanitize_text_field( wp_unslash( $_REQUEST['query_before'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotValidated -- no changes made to the site.
if ( empty( $query_before ) ) {
return $where;
}
// Construct the date query using our timestamp
$clause = $wpdb->prepare( " AND {$wpdb->posts}.post_date <= %s", $query_before );
/**
* Filter Infinite Scroll's SQL date query making sure post queries
* will always return results prior to (descending sort)
* or before (ascending sort) the last post date.
*
* @module infinite-scroll
*
* @param string $clause SQL Date query.
* @param object $query Query.
* @param string $operator @deprecated Query operator.
* @param string $last_post_date @deprecated Last Post Date timestamp.
*/
$operator = 'ASC' === $_REQUEST['query_args']['order'] ? '>' : '<'; // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotValidated -- no changes to the site.
$last_post_date = sanitize_text_field( wp_unslash( $_REQUEST['last_post_date'] ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotValidated -- no changes to the site.
$where .= apply_filters( 'infinite_scroll_posts_where', $clause, $query, $operator, $last_post_date );
}
return $where;
}
/**
* Let's overwrite the default post_per_page setting to always display a fixed amount.
*
* @param object $query - the query.
* @uses is_admin, self::archive_supports_infinity, self::get_settings
*/
public function posts_per_page_query( $query ) {
if ( ! is_admin() && self::archive_supports_infinity() && $query->is_main_query() ) {
$query->set( 'posts_per_page', self::posts_per_page() );
}
}
/**
* Check if the IS output should be wrapped in a div.
* Setting value can be a boolean or a string specifying the class applied to the div.
*
* @uses self::get_settings
* @return bool
*/
public function has_wrapper() {
return (bool) self::get_settings()->wrapper;
}
/**
* Returns the Ajax url
*
* @global $wp
* @uses home_url, add_query_arg, apply_filters
* @return string
*/
public function ajax_url() {
$base_url = set_url_scheme( home_url( '/' ) );
$ajaxurl = add_query_arg( array( 'infinity' => 'scrolling' ), $base_url );
/**
* Filter the Infinite Scroll Ajax URL.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param string $ajaxurl Infinite Scroll Ajax URL.
*/
return apply_filters( 'infinite_scroll_ajax_url', $ajaxurl );
}
/**
* Our own Ajax response, avoiding calling admin-ajax
*/
public function ajax_response() {
// Only proceed if the url query has a key of "Infinity"
if ( ! self::got_infinity() ) {
return false;
}
// This should already be defined below, but make sure.
if ( ! defined( 'DOING_AJAX' ) ) {
define( 'DOING_AJAX', true );
}
@header( 'Content-Type: text/html; charset=' . get_option( 'blog_charset' ) ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
send_nosniff_header();
/**
* Fires at the end of the Infinite Scroll Ajax response.
*
* @module infinite-scroll
*
* @since 2.0.0
*/
do_action( 'custom_ajax_infinite_scroll' );
die( '0' );
}
/**
* Alias for renamed class method.
*
* Previously, JS settings object was unnecessarily output in the document head.
* When the hook was changed, the method name no longer made sense.
*/
public function action_wp_head() {
$this->action_wp_footer_settings();
}
/**
* Prints the relevant infinite scroll settings in JS.
*
* @global $wp_rewrite
* @uses self::get_settings, esc_js, esc_url_raw, self::has_wrapper, __, apply_filters, do_action, self::get_query_vars
* @action wp_footer
*/
public function action_wp_footer_settings() {
global $wp_rewrite;
global $currentday;
// Default click handle text
$click_handle_text = __( 'Older posts', 'jetpack' );
// If a single CPT is displayed, use its plural name instead of "posts"
// Could be empty (posts) or an array of multiple post types.
// In the latter two cases cases, the default text is used, leaving the `infinite_scroll_js_settings` filter for further customization.
$post_type = self::wp_query()->get( 'post_type' );
// If it's a taxonomy, try to change the button text.
if ( is_tax() ) {
// Get current taxonomy slug.
$taxonomy_slug = self::wp_query()->get( 'taxonomy' );
// Get taxonomy settings.
$taxonomy = get_taxonomy( $taxonomy_slug );
// Check if the taxonomy is attached to one post type only and use its plural name.
// If not, use "Posts" without confusing the users.
if (
is_a( $taxonomy, 'WP_Taxonomy' )
&& is_countable( $taxonomy->object_type )
&& count( $taxonomy->object_type ) < 2
) {
$post_type = $taxonomy->object_type[0];
}
}
if ( is_string( $post_type ) && ! empty( $post_type ) ) {
$post_type = get_post_type_object( $post_type );
if ( is_object( $post_type ) && ! is_wp_error( $post_type ) ) {
if ( isset( $post_type->labels->name ) ) {
$cpt_text = $post_type->labels->name;
} elseif ( isset( $post_type->label ) ) {
$cpt_text = $post_type->label;
}
if ( isset( $cpt_text ) ) {
/* translators: %s is the name of a custom post type */
$click_handle_text = sprintf( __( 'More %s', 'jetpack' ), $cpt_text );
unset( $cpt_text );
}
}
}
unset( $post_type );
// Base JS settings
$js_settings = array(
'id' => self::get_settings()->container,
'ajaxurl' => esc_url_raw( self::ajax_url() ),
'type' => esc_js( self::get_settings()->type ),
'wrapper' => self::has_wrapper(),
'wrapper_class' => is_string( self::get_settings()->wrapper ) ? esc_js( self::get_settings()->wrapper ) : 'infinite-wrap',
'footer' => is_string( self::get_settings()->footer ) ? esc_js( self::get_settings()->footer ) : self::get_settings()->footer,
'click_handle' => esc_js( self::get_settings()->click_handle ),
'text' => esc_js( $click_handle_text ),
'totop' => esc_js( __( 'Scroll back to top', 'jetpack' ) ),
'currentday' => $currentday,
'order' => 'DESC',
'scripts' => array(),
'styles' => array(),
'google_analytics' => false,
'offset' => max( 1, self::wp_query()->get( 'paged' ) ), // Pass through the current page so we can use that to offset the first load.
'history' => array(
'host' => preg_replace( '#^http(s)?://#i', '', untrailingslashit( esc_url( get_home_url() ) ) ),
'path' => self::get_request_path(),
'use_trailing_slashes' => $wp_rewrite->use_trailing_slashes,
'parameters' => self::get_request_parameters(),
),
'query_args' => self::get_query_vars(),
'query_before' => current_time( 'mysql' ),
'last_post_date' => self::get_last_post_date(),
'body_class' => self::body_class(),
'loading_text' => esc_js( __( 'Loading new page', 'jetpack' ) ),
);
// Optional order param
if ( isset( $_REQUEST['order'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no changes made to the site.
$order = strtoupper( sanitize_text_field( wp_unslash( $_REQUEST['order'] ) ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no changes made to the site.
if ( in_array( $order, array( 'ASC', 'DESC' ), true ) ) {
$js_settings['order'] = $order;
}
}
/**
* Filter the Infinite Scroll JS settings outputted in the head.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param array $js_settings Infinite Scroll JS settings.
*/
$js_settings = apply_filters( 'infinite_scroll_js_settings', $js_settings );
/**
* Fires before Infinite Scroll outputs inline JavaScript in the head.
*
* @module infinite-scroll
*
* @since 2.0.0
*/
do_action( 'infinite_scroll_wp_head' );
?>
<script type="text/javascript">
var infiniteScroll = <?php echo wp_json_encode( array( 'settings' => $js_settings ), JSON_HEX_TAG ); ?>;
</script>
<?php
}
// phpcs:disable WordPress.WP.GlobalVariablesOverride.Prohibited
/**
* Build path data for current request.
* Used for Google Analytics and pushState history tracking.
*
* @global $wp_rewrite
* @global $wp
* @uses user_trailingslashit, sanitize_text_field, add_query_arg
* @return string|bool
*/
private function get_request_path() {
global $wp_rewrite;
if ( $wp_rewrite->using_permalinks() ) {
global $wp;
// If called too early, bail
if ( ! isset( $wp->request ) ) {
return false;
}
// Determine path for paginated version of current request
if ( preg_match( '#' . preg_quote( $wp_rewrite->pagination_base, '#' ) . '/\d+/?$#i', $wp->request ) ) {
$path = preg_replace( '#' . preg_quote( $wp_rewrite->pagination_base, '#' ) . '/\d+$#i', $wp_rewrite->pagination_base . '/%d', $wp->request );
} else {
$path = $wp->request . '/' . $wp_rewrite->pagination_base . '/%d';
}
// Slashes everywhere we need them
if ( 0 !== strpos( $path, '/' ) ) {
$path = '/' . $path;
}
$path = user_trailingslashit( $path );
} else {
// Clean up raw $_REQUEST input
$path = array_map( 'sanitize_text_field', wp_unslash( $_REQUEST ) ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- seems this is used for Google Analytics and browser history tracking.
$path = array_filter( $path );
$path['paged'] = '%d';
$path = add_query_arg( $path, '/' );
}
return empty( $path ) ? false : $path;
}
/**
* Return query string for current request, prefixed with '?'.
*
* @return string
*/
private function get_request_parameters() {
$uri = isset( $_SERVER['REQUEST_URI'] ) ? sanitize_text_field( wp_unslash( $_SERVER['REQUEST_URI'] ) ) : '';
$uri = preg_replace( '/^[^?]*(\?.*$)/', '$1', $uri, 1, $count );
if ( $count !== 1 ) {
return '';
}
return $uri;
}
/**
* Provide IS with a list of the scripts and stylesheets already present on the page.
* Since posts may contain require additional assets that haven't been loaded, this data will be used to track the additional assets.
*
* @global $wp_scripts, $wp_styles
* @action wp_footer
*/
public function action_wp_footer() {
global $wp_scripts, $wp_styles;
$scripts = is_a( $wp_scripts, 'WP_Scripts' ) ? $wp_scripts->done : array();
/**
* Filter the list of scripts already present on the page.
*
* @module infinite-scroll
*
* @since 2.1.2
*
* @param array $scripts Array of scripts present on the page.
*/
$scripts = apply_filters( 'infinite_scroll_existing_scripts', $scripts );
$styles = is_a( $wp_styles, 'WP_Styles' ) ? $wp_styles->done : array();
/**
* Filter the list of styles already present on the page.
*
* @module infinite-scroll
*
* @since 2.1.2
*
* @param array $styles Array of styles present on the page.
*/
$styles = apply_filters( 'infinite_scroll_existing_stylesheets', $styles );
?>
<script type="text/javascript">
(function() {
var extend = function(out) {
out = out || {};
for (var i = 1; i < arguments.length; i++) {
if (!arguments[i])
continue;
for (var key in arguments[i]) {
if (arguments[i].hasOwnProperty(key))
out[key] = arguments[i][key];
}
}
return out;
};
extend( window.infiniteScroll.settings.scripts, <?php echo wp_json_encode( $scripts ); ?> );
extend( window.infiniteScroll.settings.styles, <?php echo wp_json_encode( $styles ); ?> );
})();
</script>
<?php
$aria_live = 'assertive';
if ( 'scroll' === self::get_settings()->type ) {
$aria_live = 'polite';
}
?>
<span id="infinite-aria" aria-live="<?php echo esc_attr( $aria_live ); ?>"></span>
<?php
}
/**
* Identify additional scripts required by the latest set of IS posts and provide the necessary data to the IS response handler.
*
* @param array $results - the results.
* @param array $query_args - Array of Query arguments.
* @param array $wp_query - the WP query.
* @global $wp_scripts
* @uses sanitize_text_field, add_query_arg
* @filter infinite_scroll_results
* @return array
*/
public function filter_infinite_scroll_results( $results, $query_args, $wp_query ) {
// Don't bother unless there are posts to display
if ( 'success' !== $results['type'] ) {
return $results;
}
// Parse and sanitize the script handles already output
$initial_scripts = isset( $_REQUEST['scripts'] ) && is_array( $_REQUEST['scripts'] ) ? array_map( 'sanitize_text_field', wp_unslash( $_REQUEST['scripts'] ) ) : false; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no site changes made.
if ( is_array( $initial_scripts ) ) {
global $wp_scripts;
// Identify new scripts needed by the latest set of IS posts
$new_scripts = array_filter(
$wp_scripts->done,
function ( $script_name ) use ( $initial_scripts ) {
// Jetpack block scripts should always be sent, even if they've been
// sent before. These scripts only run once on when loaded, they don't
// watch for new blocks being added.
if ( 0 === strpos( $script_name, 'jetpack-block-' ) ) {
return true;
}
return ! in_array( $script_name, $initial_scripts, true );
}
);
// If new scripts are needed, extract relevant data from $wp_scripts
if ( ! empty( $new_scripts ) ) {
$results['scripts'] = array();
foreach ( $new_scripts as $handle ) {
// Abort if somehow the handle doesn't correspond to a registered script
// or if the script doesn't have `src` set.
$script_not_registered = ! isset( $wp_scripts->registered[ $handle ] );
$empty_src = empty( $wp_scripts->registered[ $handle ]->src );
if ( $script_not_registered || $empty_src ) {
continue;
}
// Provide basic script data
$script_data = array(
'handle' => $handle,
'footer' => ( is_array( $wp_scripts->in_footer ) && in_array( $handle, $wp_scripts->in_footer, true ) ),
'extra_data' => $wp_scripts->print_extra_script( $handle, false ),
'before_handle' => $wp_scripts->print_inline_script( $handle, 'before', false ),
'after_handle' => $wp_scripts->print_inline_script( $handle, 'after', false ),
);
// Base source
$src = $wp_scripts->registered[ $handle ]->src;
// Take base_url into account
if ( strpos( $src, 'http' ) !== 0 ) {
$src = $wp_scripts->base_url . $src;
}
// Version and additional arguments
if ( null === $wp_scripts->registered[ $handle ]->ver ) {
$ver = '';
} else {
$ver = $wp_scripts->registered[ $handle ]->ver ? $wp_scripts->registered[ $handle ]->ver : $wp_scripts->default_version;
}
if ( isset( $wp_scripts->args[ $handle ] ) ) {
$ver = $ver ? $ver . '&' . $wp_scripts->args[ $handle ] : $wp_scripts->args[ $handle ];
}
// Full script source with version info
$script_data['src'] = add_query_arg( 'ver', $ver, $src );
// Add script to data that will be returned to IS JS
array_push( $results['scripts'], $script_data );
}
}
}
// Expose additional script data to filters, but only include in final `$results` array if needed.
if ( ! isset( $results['scripts'] ) ) {
$results['scripts'] = array();
}
/**
* Filter the additional scripts required by the latest set of IS posts.
*
* @module infinite-scroll
*
* @since 2.1.2
*
* @param array $results['scripts'] Additional scripts required by the latest set of IS posts.
* @param array|bool $initial_scripts Set of scripts loaded on each page.
* @param array $results Array of Infinite Scroll results.
* @param array $query_args Array of Query arguments.
* @param WP_Query $wp_query WP Query.
*/
$results['scripts'] = apply_filters(
'infinite_scroll_additional_scripts',
$results['scripts'],
$initial_scripts,
$results,
$query_args,
$wp_query
);
if ( empty( $results['scripts'] ) ) {
unset( $results['scripts'] );
}
// Parse and sanitize the style handles already output
$initial_styles = isset( $_REQUEST['styles'] ) && is_array( $_REQUEST['styles'] ) ? array_map( 'sanitize_text_field', wp_unslash( $_REQUEST['styles'] ) ) : false; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
if ( is_array( $initial_styles ) ) {
global $wp_styles;
// Identify new styles needed by the latest set of IS posts
$new_styles = array_diff( $wp_styles->done, $initial_styles );
// If new styles are needed, extract relevant data from $wp_styles
if ( ! empty( $new_styles ) ) {
$results['styles'] = array();
foreach ( $new_styles as $handle ) {
// Abort if somehow the handle doesn't correspond to a registered stylesheet
if ( ! isset( $wp_styles->registered[ $handle ] ) ) {
continue;
}
// Provide basic style data
$style_data = array(
'handle' => $handle,
'media' => 'all',
);
// Base source
$src = $wp_styles->registered[ $handle ]->src;
// Take base_url into account
if ( strpos( $src, 'http' ) !== 0 ) {
$src = $wp_styles->base_url . $src;
}
// Version and additional arguments
if ( null === $wp_styles->registered[ $handle ]->ver ) {
$ver = '';
} else {
$ver = $wp_styles->registered[ $handle ]->ver ? $wp_styles->registered[ $handle ]->ver : $wp_styles->default_version;
}
if ( isset( $wp_styles->args[ $handle ] ) ) {
$ver = $ver ? $ver . '&' . $wp_styles->args[ $handle ] : $wp_styles->args[ $handle ];
}
// Full stylesheet source with version info
$style_data['src'] = add_query_arg( 'ver', $ver, $src );
// Parse stylesheet's conditional comments if present, converting to logic executable in JS
if ( isset( $wp_styles->registered[ $handle ]->extra['conditional'] ) && $wp_styles->registered[ $handle ]->extra['conditional'] ) {
// First, convert conditional comment operators to standard logical operators. %ver is replaced in JS with the IE version
$style_data['conditional'] = str_replace(
array(
'lte',
'lt',
'gte',
'gt',
),
array(
'%ver <=',
'%ver <',
'%ver >=',
'%ver >',
),
$wp_styles->registered[ $handle ]->extra['conditional']
);
// Next, replace any !IE checks. These shouldn't be present since WP's conditional stylesheet implementation doesn't support them, but someone could be _doing_it_wrong().
$style_data['conditional'] = preg_replace( '#!\s*IE(\s*\d+){0}#i', '1==2', $style_data['conditional'] );
// Lastly, remove the IE strings
$style_data['conditional'] = str_replace( 'IE', '', $style_data['conditional'] );
}
// Parse requested media context for stylesheet
if ( isset( $wp_styles->registered[ $handle ]->args ) ) {
$style_data['media'] = esc_attr( $wp_styles->registered[ $handle ]->args );
}
// Add stylesheet to data that will be returned to IS JS
array_push( $results['styles'], $style_data );
}
}
}
// Expose additional stylesheet data to filters, but only include in final `$results` array if needed.
if ( ! isset( $results['styles'] ) ) {
$results['styles'] = array();
}
/**
* Filter the additional styles required by the latest set of IS posts.
*
* @module infinite-scroll
*
* @since 2.1.2
*
* @param array $results['styles'] Additional styles required by the latest set of IS posts.
* @param array|bool $initial_styles Set of styles loaded on each page.
* @param array $results Array of Infinite Scroll results.
* @param array $query_args Array of Query arguments.
* @param WP_Query $wp_query WP Query.
*/
$results['styles'] = apply_filters(
'infinite_scroll_additional_stylesheets',
$results['styles'],
$initial_styles,
$results,
$query_args,
$wp_query
);
if ( empty( $results['styles'] ) ) {
unset( $results['styles'] );
}
// Lastly, return the IS results array
return $results;
}
/**
* Runs the query and returns the results via JSON.
* Triggered by an AJAX request.
*
* @global $wp_query
* @global $wp_the_query
* @uses current_theme_supports, get_option, self::wp_query, current_user_can, apply_filters, self::get_settings, add_filter, WP_Query, remove_filter, have_posts, wp_head, do_action, add_action, this::render, this::has_wrapper, esc_attr, wp_footer, sharing_register_post_for_share_counts, get_the_id
*/
public function query() {
if ( ! isset( $_REQUEST['page'] ) || ! current_theme_supports( 'infinite-scroll' ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no changes to the site.
die;
}
// @todo see if we should validate this nonce since we use it to form a query.
$page = (int) $_REQUEST['page']; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- we're casting this to an int and not making changes to the site.
// Sanitize and set $previousday. Expected format: dd.mm.yy
if ( isset( $_REQUEST['currentday'] ) && preg_match( '/^\d{2}\.\d{2}\.\d{2}$/', $_REQUEST['currentday'] ) ) { // phpcs:ignore WordPress.Security.ValidatedSanitizedInput, WordPress.Security.NonceVerification.Recommended -- manually validating, no changes to site
global $previousday;
$previousday = $_REQUEST['currentday']; // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput
}
$post_status = array( 'publish' );
if ( current_user_can( 'read_private_posts' ) ) {
array_push( $post_status, 'private' );
}
$order = isset( $_REQUEST['order'] ) && in_array( $_REQUEST['order'], array( 'ASC', 'DESC' ), true ) ? sanitize_text_field( wp_unslash( $_REQUEST['order'] ) ) : 'DESC'; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no changes made to the site.
$query_args = array_merge(
self::wp_query()->query_vars,
array(
'paged' => $page,
'post_status' => $post_status,
'posts_per_page' => self::posts_per_page(), // phpcs:ignore WordPress.WP.PostsPerPage.posts_per_page_posts_per_page
'order' => $order,
)
);
// 4.0 ?s= compatibility, see https://core.trac.wordpress.org/ticket/11330#comment:50
if ( empty( $query_args['s'] ) && ! isset( self::wp_query()->query['s'] ) ) {
unset( $query_args['s'] );
}
// By default, don't query for a specific page of a paged post object.
// This argument can come from merging self::wp_query() into $query_args above.
// Since IS is only used on archives, we should always display the first page of any paged content.
unset( $query_args['page'] );
/**
* Filter the array of main query arguments.
*
* @module infinite-scroll
*
* @since 2.0.1
*
* @param array $query_args Array of Query arguments.
*/
$query_args = apply_filters( 'infinite_scroll_query_args', $query_args );
add_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 );
$infinite_scroll_query = new WP_Query();
$GLOBALS['wp_the_query'] = $infinite_scroll_query;
$GLOBALS['wp_query'] = $infinite_scroll_query;
$infinite_scroll_query->query( $query_args );
remove_filter( 'posts_where', array( $this, 'query_time_filter' ), 10, 2 );
$results = array();
if ( have_posts() ) {
// Fire wp_head to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer.
ob_start();
wp_head();
while ( ob_get_length() ) {
ob_end_clean();
}
$results['type'] = 'success';
/**
* Fires when rendering Infinite Scroll posts.
*
* @module infinite-scroll
*
* @since 2.0.0
*/
do_action( 'infinite_scroll_render' );
$results['html'] = ob_get_clean();
if ( empty( $results['html'] ) ) {
/**
* Gather renderer callbacks. These will be called in order and allow multiple callbacks to be queued. Once content is found, no futher callbacks will run.
*
* @module infinite-scroll
*
* @since 6.0.0
*/
$callbacks = apply_filters(
'infinite_scroll_render_callbacks',
array( self::get_settings()->render ) // This is the setting callback e.g. from add theme support.
);
// Append fallback callback. That rhymes.
$callbacks[] = array( $this, 'render' );
foreach ( $callbacks as $callback ) {
if ( false !== $callback && is_callable( $callback ) ) {
rewind_posts();
ob_start();
add_action( 'infinite_scroll_render', $callback );
/**
* This action is already documented above.
* See https://github.com/Automattic/jetpack/pull/16317/
* for more details as to why it was introduced.
*/
do_action( 'infinite_scroll_render' );
$results['html'] = ob_get_clean();
remove_action( 'infinite_scroll_render', $callback );
}
if ( ! empty( $results['html'] ) ) {
break;
}
}
}
// If primary and fallback rendering methods fail, prevent further IS rendering attempts. Otherwise, wrap the output if requested.
if ( empty( $results['html'] ) ) {
unset( $results['html'] );
/**
* Fires when Infinite Scoll doesn't render any posts.
*
* @module infinite-scroll
*
* @since 2.0.0
*/
do_action( 'infinite_scroll_empty' );
$results['type'] = 'empty';
} elseif ( $this->has_wrapper() ) {
$wrapper_classes = is_string( self::get_settings()->wrapper ) ? self::get_settings()->wrapper : 'infinite-wrap';
$wrapper_classes .= ' infinite-view-' . $page;
$wrapper_classes = trim( $wrapper_classes );
$aria_label = sprintf(
/* translators: %1$s is the page count */
__( 'Page: %1$d.', 'jetpack' ),
$page
);
$results['html'] = '<div class="' . esc_attr( $wrapper_classes ) . '" id="infinite-view-' . $page . '" data-page-num="' . $page . '" role="region" aria-label="' . esc_attr( $aria_label ) . '">' . $results['html'] . '</div>';
}
// Fire wp_footer to ensure that all necessary scripts are enqueued. Output isn't used, but scripts are extracted in self::action_wp_footer.
ob_start();
wp_footer();
while ( ob_get_length() ) {
ob_end_clean();
}
if ( 'success' === $results['type'] ) {
global $currentday;
$results['lastbatch'] = self::is_last_batch();
$results['currentday'] = $currentday;
}
// Loop through posts to capture sharing data for new posts loaded via Infinite Scroll
if ( 'success' === $results['type'] && function_exists( 'sharing_register_post_for_share_counts' ) ) {
global $jetpack_sharing_counts;
while ( have_posts() ) {
the_post();
sharing_register_post_for_share_counts( get_the_ID() );
}
$results['postflair'] = array_flip( $jetpack_sharing_counts );
}
} else {
/** This action is already documented in modules/infinite-scroll/infinity.php */
do_action( 'infinite_scroll_empty' );
$results['type'] = 'empty';
}
wp_send_json(
/**
* Filter the Infinite Scroll results.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param array $results Array of Infinite Scroll results.
* @param array $query_args Array of main query arguments.
* @param WP_Query $wp_query WP Query.
*/
apply_filters( 'infinite_scroll_results', $results, $query_args, self::wp_query() )
);
}
/**
* Update the $allowed_vars array with the standard WP public and private
* query vars, as well as taxonomy vars
*
* @global $wp
* @param array $allowed_vars - the allowed variables array.
* @filter infinite_scroll_allowed_vars
* @return array
*/
public function allowed_query_vars( $allowed_vars ) {
global $wp;
$allowed_vars += $wp->public_query_vars;
$allowed_vars += $wp->private_query_vars;
$allowed_vars += $this->get_taxonomy_vars();
foreach ( array_keys( $allowed_vars, 'paged', true ) as $key ) {
unset( $allowed_vars[ $key ] );
}
return array_unique( $allowed_vars );
}
/**
* Returns an array of stock and custom taxonomy query vars
*
* @global $wp_taxonomies
* @return array
*/
public function get_taxonomy_vars() {
global $wp_taxonomies;
$taxonomy_vars = array();
foreach ( $wp_taxonomies as $t ) {
if ( $t->query_var ) {
$taxonomy_vars[] = $t->query_var;
}
}
// still needed?
$taxonomy_vars[] = 'tag_id';
return $taxonomy_vars;
}
/**
* Update the $query_args array with the parameters provided via AJAX/GET.
*
* @param array $query_args - the query args.
* @filter infinite_scroll_query_args
* @return array
*/
public function inject_query_args( $query_args ) {
/**
* Filter the array of allowed Infinite Scroll query arguments.
*
* @module infinite-scroll
*
* @since 2.6.0
*
* @param array $args Array of allowed Infinite Scroll query arguments.
* @param array $query_args Array of query arguments.
*/
$allowed_vars = apply_filters( 'infinite_scroll_allowed_vars', array(), $query_args );
$query_args = array_merge(
$query_args,
array(
'suppress_filters' => false,
)
);
if ( isset( $_REQUEST['query_args'] ) && is_array( $_REQUEST['query_args'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- no site changes.
foreach ( wp_unslash( $_REQUEST['query_args'] ) as $var => $value ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended, WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- no site changes, sanitized below.
if ( in_array( $var, $allowed_vars, true ) && ! empty( $value ) ) {
$query_args[ $var ] = filter_var( $value );
}
}
}
return $query_args;
}
/**
* Rendering fallback used when themes don't specify their own handler.
*
* @uses have_posts, the_post, get_template_part, get_post_format
* @action infinite_scroll_render
*/
public function render() {
while ( have_posts() ) {
the_post();
get_template_part( 'content', get_post_format() );
}
}
/**
* Allow plugins to filter what archives Infinite Scroll supports
*
* @uses current_theme_supports, is_home, is_archive, apply_filters, self::get_settings
* @return bool
*/
public static function archive_supports_infinity() {
$supported = current_theme_supports( 'infinite-scroll' ) && ( is_home() || is_archive() || is_search() );
// Disable when previewing a non-active theme in the customizer
if ( is_customize_preview() && ! $GLOBALS['wp_customize']->is_theme_active() ) {
return false;
}
/**
* Allow plugins to filter what archives Infinite Scroll supports.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param bool $supported Does the Archive page support Infinite Scroll.
* @param object self::get_settings() IS settings provided by theme.
*/
return (bool) apply_filters( 'infinite_scroll_archive_supported', $supported, self::get_settings() );
}
/**
* The Infinite Blog Footer
*
* @uses self::get_settings, self::archive_supports_infinity, self::default_footer
* @return string or null
*/
public function footer() {
if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {
return;
}
// Bail if theme requested footer not show
if ( false === self::get_settings()->footer ) {
return;
}
// We only need the new footer for the 'scroll' type
if ( 'scroll' !== self::get_settings()->type || ! self::archive_supports_infinity() ) {
return;
}
if ( self::is_last_batch() ) {
return;
}
// Display a footer, either user-specified or a default
if ( false !== self::get_settings()->footer_callback && is_callable( self::get_settings()->footer_callback ) ) {
call_user_func( self::get_settings()->footer_callback, self::get_settings() );
} else {
self::default_footer();
}
}
/**
* Render default IS footer
*
* @uses __, wp_get_theme, apply_filters, home_url, esc_attr, get_bloginfo, bloginfo
*/
private function default_footer() {
if ( '' !== get_privacy_policy_url() ) {
$credits = get_the_privacy_policy_link() . '<span role="separator" aria-hidden="true"> / </span>';
} else {
$credits = '';
}
$credits .= sprintf(
'<a href="https://wordpress.org/" rel="noopener noreferrer" target="_blank" rel="generator">%1$s</a> ',
__( 'Proudly powered by WordPress', 'jetpack' )
);
$credits .= sprintf(
/* translators: %1$s is the name of a theme */
__( 'Theme: %1$s.', 'jetpack' ),
wp_get_theme()->Name
);
/**
* Filter Infinite Scroll's credit text.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param string $credits Infinite Scroll credits.
*/
$credits = apply_filters( 'infinite_scroll_credit', $credits );
?>
<div id="infinite-footer">
<div class="container">
<div class="blog-info">
<a id="infinity-blog-title" href="<?php echo esc_url( home_url( '/' ) ); ?>" rel="home">
<?php bloginfo( 'name' ); ?>
</a>
</div>
<div class="blog-credits">
<?php echo $credits; //phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped ?>
</div>
</div>
</div><!-- #infinite-footer -->
<?php
}
/**
* Ensure that IS doesn't interfere with Grunion by stripping IS query arguments from the Grunion redirect URL.
* When arguments are present, Grunion redirects to the IS AJAX endpoint.
*
* @param string $url - the Grunion redirect URL.
* @uses remove_query_arg
* @filter grunion_contact_form_redirect_url
* @return string
*/
public function filter_grunion_redirect_url( $url ) {
// Remove IS query args, if present
if ( false !== strpos( $url, 'infinity=scrolling' ) ) {
$url = remove_query_arg(
array(
'infinity',
'action',
'page',
'order',
'scripts',
'styles',
),
$url
);
}
return $url;
}
/**
* When the MediaElement is loaded in dynamically, we need to enforce that
* its settings are added to the page as well.
*
* @param array $scripts_data New scripts exposed to the infinite scroll.
*
* @since 8.4.0
*/
public function add_mejs_config( $scripts_data ) {
foreach ( $scripts_data as $key => $data ) {
if ( 'mediaelement-core' === $data['handle'] ) {
$mejs_settings = array(
'pluginPath' => includes_url( 'js/mediaelement/', 'relative' ),
'classPrefix' => 'mejs-',
'stretching' => 'responsive',
);
$scripts_data[ $key ]['extra_data'] = sprintf(
'window.%s = %s',
'_wpmejsSettings',
wp_json_encode( apply_filters( 'mejs_settings', $mejs_settings ) )
);
}
}
return $scripts_data;
}
/**
* Determines whether the legacy AMP Reader post templates are being used.
*
* @return bool
*/
private function is_exempted_amp_page() {
if ( is_singular( 'web-story' ) ) {
// Ensure that <amp-next-page> is not injected after <amp-story> as generated by the Web Stories plugin.
return true;
}
if ( function_exists( 'amp_is_legacy' ) ) {
// Available since AMP v2.0, this will return false if a theme like Twenty Twenty is selected as the Reader theme.
return amp_is_legacy();
}
if ( method_exists( 'AMP_Options_Manager', 'get_option' ) ) {
// In versions prior to v2.0, checking the template mode as being 'reader' is sufficient.
return 'reader' === AMP_Options_Manager::get_option( 'theme_support' );
}
return false;
}
/**
* Load AMP specific hooks.
*
* @return void
*/
public function amp_load_hooks() {
if ( $this->is_exempted_amp_page() ) {
return;
}
if ( class_exists( 'Jetpack_AMP_Support' ) && Jetpack_AMP_Support::is_amp_request() ) {
$template = self::get_settings()->render;
add_filter( 'jetpack_infinite_scroll_load_scripts_and_styles', '__return_false' );
add_action( 'template_redirect', array( $this, 'amp_start_output_buffering' ), 0 );
add_action( 'shutdown', array( $this, 'amp_output_buffer' ), 1 );
if ( is_string( $template ) && strpos( $template, '::' ) === false && is_callable( "amp_{$template}_hooks" ) ) {
call_user_func( "amp_{$template}_hooks" );
}
// Warms up the amp next page markup.
// This should be done outside the output buffering callback started in the template_redirect.
$this->amp_get_footer_template();
}
}
/**
* Start the AMP output buffering.
*
* @return void
*/
public function amp_start_output_buffering() {
ob_start( array( $this, 'amp_finish_output_buffering' ) );
}
/**
* Flush the AMP output buffer.
*
* @return void
*/
public function amp_output_buffer() {
if ( ob_get_contents() ) {
ob_end_flush();
}
}
/**
* Filter the AMP output buffer contents.
*
* @param string $buffer Contents of the output buffer.
*
* @return string|false
*/
public function amp_finish_output_buffering( $buffer ) {
// Hide WordPress admin bar on next page load.
$buffer = preg_replace(
'/id="wpadminbar"/',
'$0 next-page-hide',
$buffer
);
/**
* Get the theme footers.
*
* @module infinite-scroll
*
* @since 9.0.0
*
* @param array array() An array to store multiple markup entries to be added to the footer.
* @param string $buffer The contents of the output buffer.
*/
$footers = apply_filters( 'jetpack_amp_infinite_footers', array(), $buffer );
/**
* Filter the output buffer.
* Themes can leverage this hook to add custom markup on next page load.
*
* @module infinite-scroll
*
* @since 9.0.0
*
* @param string $buffer The contents of the output buffer.
*/
$buffer = apply_filters( 'jetpack_amp_infinite_output', $buffer );
// Add the amp next page markup.
$buffer = preg_replace(
'~</body>~',
$this->amp_get_footer_template( $footers ) . '$0',
$buffer
);
return $buffer;
}
/**
* Get AMP next page markup with the custom footers.
*
* @param string[] $footers The theme footers.
*
* @return string
*/
protected function amp_get_footer_template( $footers = array() ) {
static $template = null;
if ( null === $template ) {
$template = $this->amp_footer_template();
}
if ( empty( $footers ) ) {
return $template;
}
return preg_replace(
'/%%footer%%/',
implode( '', $footers ),
$template
);
}
/**
* AMP Next Page markup.
*
* @return string
*/
protected function amp_footer_template() {
ob_start();
?>
<amp-next-page max-pages="<?php echo esc_attr( $this->amp_get_max_pages() ); ?>">
<script type="application/json">
[
<?php echo wp_json_encode( $this->amp_next_page() ); ?>
]
</script>
<div separator>
<?php
echo wp_kses_post(
/**
* AMP infinite scroll separator.
*
* @module infinite-scroll
*
* @since 9.0.0
*
* @param string '' The markup for the next page separator.
*/
apply_filters( 'jetpack_amp_infinite_separator', '' )
);
?>
</div>
<div recommendation-box class="recommendation-box">
<template type="amp-mustache">
{{#pages}}
<?php
echo wp_kses_post(
/**
* AMP infinite scroll older posts markup.
*
* @module infinite-scroll
*
* @since 9.0.0
*
* @param string '' The markup for the older posts/next page.
*/
apply_filters( 'jetpack_amp_infinite_older_posts', '' )
);
?>
{{/pages}}
</template>
</div>
<div footer>
%%footer%%
</div>
</amp-next-page>
<?php
return ob_get_clean();
}
/**
* Get the AMP next page information.
*
* @return array
*/
protected function amp_next_page() {
$title = '';
$url = '';
$image = '';
if ( ! static::amp_is_last_page() ) {
$title = sprintf(
'%s - %s %d - %s',
wp_title( '', false ),
__( 'Page', 'jetpack' ),
max( get_query_var( 'paged', 1 ), 1 ) + 1,
get_bloginfo( 'name' )
);
$url = get_next_posts_page_link();
}
$next_page = array(
'title' => $title,
'url' => $url,
'image' => $image,
);
/**
* The next page settings.
* An array containing:
* - title => The title to be featured on the browser tab.
* - url => The URL of next page.
* - image => The image URL. A required AMP setting, not in use currently. Themes are welcome to leverage.
*
* @module infinite-scroll
*
* @since 9.0.0
*
* @param array $next_page The contents of the output buffer.
*/
return apply_filters( 'jetpack_amp_infinite_next_page_data', $next_page );
}
/**
* Get the number of pages left.
*
* @return int
*/
protected static function amp_get_max_pages() {
global $wp_query;
return (int) $wp_query->max_num_pages - $wp_query->query_vars['paged'];
}
/**
* Is the last page.
*
* @return bool
*/
protected static function amp_is_last_page() {
return 0 === static::amp_get_max_pages();
}
}
/**
* Initialize The_Neverending_Home_Page
*/
function the_neverending_home_page_init() {
if ( ! current_theme_supports( 'infinite-scroll' ) ) {
return;
}
new The_Neverending_Home_Page();
}
add_action( 'init', 'the_neverending_home_page_init', 20 );
/**
* Check whether the current theme is infinite-scroll aware.
* If so, include the files which add theme support.
*/
function the_neverending_home_page_theme_support() {
if (
defined( 'IS_WPCOM' ) && IS_WPCOM &&
defined( 'REST_API_REQUEST' ) && REST_API_REQUEST &&
! doing_action( 'restapi_theme_after_setup_theme' )
) {
// Don't source theme compat files until we're in the site's context
return;
}
$theme_name = get_stylesheet();
/**
* Filter the path to the Infinite Scroll compatibility file.
*
* @module infinite-scroll
*
* @since 2.0.0
*
* @param string $str IS compatibility file path.
* @param string $theme_name Theme name.
*/
$customization_file = apply_filters( 'infinite_scroll_customization_file', __DIR__ . "/themes/{$theme_name}.php", $theme_name );
if ( is_readable( $customization_file ) ) {
require_once $customization_file;
}
}
add_action( 'after_setup_theme', 'the_neverending_home_page_theme_support', 5 );
/**
* Early accommodation of the Infinite Scroll AJAX request
*/
if ( The_Neverending_Home_Page::got_infinity() ) {
/**
* If we're sure this is an AJAX request (i.e. the HTTP_X_REQUESTED_WITH header says so),
* indicate it as early as possible for actions like init
*/
if ( ! defined( 'DOING_AJAX' ) &&
isset( $_SERVER['HTTP_X_REQUESTED_WITH'] ) &&
strtoupper( sanitize_text_field( wp_unslash( $_SERVER['HTTP_X_REQUESTED_WITH'] ) ) ) === 'XMLHTTPREQUEST'
) {
define( 'DOING_AJAX', true );
}
// Don't load the admin bar when doing the AJAX response.
show_admin_bar( false );
}
Zerion Mini Shell 1.0