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| Dir : /home/trave494/princesspicnicevents.com/wp-content/themes/soledad/inc/load_next_prev_posts.php |
<?php
/*
* Running autoload next/prev posts based on the settings from Customize > Single Posts
*
*/
class PENCI_SINGLE_LOAD_POSTS {
function __construct() {
/* Main hooks */
add_action( 'wp', array( $this, 'posts_hook' ) );
add_action( 'init', array( $this, 'comment_redirect' ), 5 );
}
/**
* posts_hook
*/
function posts_hook(){
// Make sure on single posts & the option is enabled
if( get_theme_mod( 'penci_loadnp_posts' ) && is_single() ){
// Hook for the posts loads after scroll down and the current viewing posts
if( function_exists( 'penci_is_single_npload' ) && penci_is_single_npload() ){
$this->hooks_loads_posts();
} else{
$this->hooks_current_posts();
}
}
}
/**
* Current viewing post hooks
*/
function hooks_current_posts(){
// Insert the iframe code after the post content
add_action( 'penci_action_after_post_content', array( $this, 'get_previous_in_iframe' ), 100 );
// Insert the iframe Js code at the footer after loading jQuery
add_action( 'wp_footer', array( $this, 'enque_js_current_post' ), 99999 );
// Custom body class in the Ajax loaded posts
add_action('body_class', function( $classes ){
$classes[] = 'penci-current-single-loadmore';
return $classes;
});
}
/**
* Enqueue js for current viewing post
*/
function enque_js_current_post(){
?>
<script type="text/javascript" src="<?php echo get_template_directory_uri(); ?>/js/loadnp_current_posts.js"></script>
<?php
}
/**
* Get the Iframe Code
*/
function get_previous_in_iframe(){
$type = get_theme_mod( 'autoload_posts_type' ) ? get_theme_mod( 'autoload_posts_type' ) : 'prev';
switch ( $type ) {
case 'next':
$prev_posts = $this->get_adjacent_post( false );
break;
case 'prev_cat':
$prev_posts = $this->get_adjacent_post( true, true );
break;
case 'next_cat':
$prev_posts = $this->get_adjacent_post( false, true );
break;
case 'prev_tag':
$prev_posts = $this->get_adjacent_post( true, true, '', 'post_tag' );
break;
case 'next_tag':
$prev_posts = $this->get_adjacent_post( false, true, '', 'post_tag' );
break;
default:
$prev_posts = $this->get_adjacent_post();
}
if ( ! empty( $prev_posts ) ) {
echo '
<script>var PenciLoadNextPrevPosts = '. wp_json_encode( $prev_posts ) .';</script>
<div id="penci-wrapper-single-loadmore">
<div id="penci-wrapper-iframe-data">
</div>
<div class="penci-single-loadmore-anim"><div class="penci-loadmore-horizontal">Loading...</div></div>
</div>
';
}
}
/**
* Load more posts iframe
*/
function hooks_loads_posts(){
// Remove admin bar
add_filter('show_admin_bar', '__return_false');
// Remove header & footer
add_filter( 'penci_filter_hide_header', function(){ return true; } );
add_filter( 'penci_filter_hide_footer', function(){ return true; } );
// Modify header and footer of next/prev posts
add_action( 'wp_head', array( $this, 'loads_posts_header' ), 200 );
add_action( 'wp_footer', array( $this, 'loads_posts_footer' ), 2 );
// Add custom body class for loaded posts
add_action( 'body_class', array( $this, 'loads_posts_bodyclass' ) );
// Add custom class for the main post div, same class will be used for the iframe
add_action('penci_post_class', function( $return ){
$return .= ' penci-postclass-loadmore';
echo $return;
} );
// Hook for SEO plugins - Yoast & Rank Math
add_filter( 'wpseo_frontend_presenter_classes', array( $this, 'yoast_seo_remove_tags' ) );
add_filter( 'rank_math/frontend/robots', array( $this, 'rank_math_remove_tags' ) );
// Hook to before & after wp_footer and hide all elements inside it excerpt script & link tags
add_action( 'wp_footer', function(){
echo '
<style>
html body + *:not(script):not(link),
html body ~ *:not(script):not(link),
html body div#penci-iframe-loadnp-footer *:not(script):not(link),
html body div#penci-iframe-loadnp-footer + *:not(script):not(link),
html body div#penci-iframe-loadnp-footer ~ *:not(script):not(link){
display: none !important;
visibility: hidden !important;
z-index: -1 !important;
opacity: 0 !important;
height: 0 !important;
width: 0!important;
}
</style>
';
echo '<div id="penci-iframe-loadnp-footer">';
}, 0 );
add_action( 'wp_footer', function(){
echo '</div>';
}, 10000000000 );
}
/**
* Actions for <head> tag of next/prev posts
*/
function loads_posts_header(){
// Stop index for loaded iframe
echo '<meta name="robots" content="noindex, nofollow" />';
// Enqueue js for loaded posts iframe
echo '<script type="text/javascript" src="'. get_template_directory_uri() . '/js/loadnp_next_posts.js"></script>';
// CSS
$css_codes = apply_filters( 'penci_css_loaded_posts', '
html{
overflow: hidden !important;
}
html, body{
background: transparent !important;
padding: 0 !important;
margin 0 !important;
}
.penci-rlt-popup, .penci-wrap-gprd-law{
display: none !important;
}
.fb-comments > span {
display: block !important;
}
.fb-comments > span iframe{
width: 100% !important;
}
');
if( ! empty( $css_codes ) ){
echo '<style>'. $css_codes .'</style>';
}
}
/**
* Add custom code before close </body> tag for loaded posts
*/
function loads_posts_footer(){
$data = '<script>
var link = document.getElementsByTagName("a");
var i;
for (i = 0; i < link.length; i++) {
if( link[i].href !== "#" && "undefined" !== typeof link[i].target ){
link[i].setAttribute("target", "_parent")
}
}
var iFrameResizer = {
onMessage: function(message) {
alert(message, parentIFrame.getId())
},
onReady: function() {
parentIFrame.sendMessage( \'{ "id": "readytoLoad" }\' );
}
}
// Listen to parent
window.addEventListener("message", handleParentMessage, false);
function handleParentMessage(e) {
if( e.data && typeof e.data === "object" ){
html = document.getElementsByTagName("html")[0].classList;
if( "undefined" !== typeof e.data.addClass ) {
var Classes = e.data.addClass.split(" ");
for (i = 0; i < Classes.length; i++) {
if( Classes[i] ){
html.add( Classes[i] );
}
}
}
if( "undefined" !== typeof e.data.removeClass ) {
var Classes = e.data.removeClass.split(" ");
for (i = 0; i < Classes.length; i++) {
if( Classes[i] ){
html.remove( Classes[i] );
}
}
}
}
}
</script>';
echo $data;
}
/**
* Custom Class in the Ajax Loaded Posts
*/
function loads_posts_bodyclass( $classes ){
$classes[] = 'penci-single-loaded-posts';
return $classes;
}
/**
* Disable all meta tags from Yoast SEO for load posts - more information: https://developer.yoast.com/customization/apis/metadata-api/
*/
function yoast_seo_remove_tags( $presenters ){
if( is_array( $presenters ) && ! empty( $presenters ) ){
$prefix = 'Yoast\WP\SEO\Presenters';
$removed_tags = array(
'\Robots_Presenter',
'\Googlebot_Presenter',
'\Bingbot_Presenter',
);
foreach ( $presenters as $key => $val ) {
$presenter = str_replace( $prefix, '', $val );
if( in_array( $presenter, $removed_tags ) ){
unset( $presenters[ $key ] );
}
}
}
return $presenters;
}
/**
* Disable index, follow from Rank Math plugin
*/
function rank_math_remove_tags( $tags ) {
$tags['index'] = 'noindex';
$tags['follow'] = 'nofollow';
return $tags;
}
/**
* Modify the get_adjacent_post function to get the data of load next/prev posts - original function: https://developer.wordpress.org/reference/functions/get_adjacent_post/
*/
function get_adjacent_post( $previous = true, $in_same_term = false, $excluded_terms = '', $taxonomy = 'category' ) {
global $wpdb;
$post = get_post();
if ( ! $post || ! taxonomy_exists( $taxonomy ) ) {
return null;
}
$current_post_date = $post->post_date;
$join = '';
$where = '';
$adjacent = $previous ? 'previous' : 'next';
if ( ! empty( $excluded_terms ) && ! is_array( $excluded_terms ) ) {
$excluded_terms = explode( ',', $excluded_terms );
$excluded_terms = array_map( 'intval', $excluded_terms );
}
if ( $in_same_term || ! empty( $excluded_terms ) ) {
if ( $in_same_term ) {
$join .= " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id INNER JOIN $wpdb->term_taxonomy tt ON tr.term_taxonomy_id = tt.term_taxonomy_id";
$where .= $wpdb->prepare( 'AND tt.taxonomy = %s', $taxonomy );
if ( ! is_object_in_taxonomy( $post->post_type, $taxonomy ) ) {
return '';
}
$term_array = wp_get_object_terms( $post->ID, $taxonomy, array( 'fields' => 'ids' ) );
// Remove any exclusions from the term array to include.
$term_array = array_diff( $term_array, (array) $excluded_terms );
$term_array = array_map( 'intval', $term_array );
if ( ! $term_array || is_wp_error( $term_array ) ) {
return '';
}
$where .= ' AND tt.term_id IN (' . implode( ',', $term_array ) . ')';
}
if ( ! empty( $excluded_terms ) ) {
$where .= " AND p.ID NOT IN ( SELECT tr.object_id FROM $wpdb->term_relationships tr LEFT JOIN $wpdb->term_taxonomy tt ON (tr.term_taxonomy_id = tt.term_taxonomy_id) WHERE tt.term_id IN (" . implode( ',', array_map( 'intval', $excluded_terms ) ) . ') )';
}
}
// Only Published posts
$where .= " AND p.post_status = 'publish'";
$op = $previous ? '<' : '>';
$order = $previous ? 'DESC' : 'ASC';
$limit = get_theme_mod( 'penci_loadnp_number') ? get_theme_mod( 'penci_loadnp_number') : 4;
$where = $wpdb->prepare( "WHERE p.post_date $op %s AND p.post_type = %s $where", $current_post_date, $post->post_type );
$query = "SELECT DISTINCT ID, post_author, post_date, post_date_gmt, post_title, post_type, post_status, post_name, guid FROM $wpdb->posts AS p $join $where ORDER BY p.post_date $order LIMIT $limit";
$query_key = 'autoload_posts_' . md5( $query );
$result = wp_cache_get( $query_key, 'counts' );
if ( false === $result ) {
$result = $wpdb->get_results( $query );
if ( null === $result ) {
$result = '';
}
wp_cache_set( $query_key, $result, 'counts' );
}
$loaddata = array();
if( ! empty( $result ) || is_array( $result ) ){
foreach ( $result as $postdata ) {
// Permalinks
$post_url = get_permalink( $postdata );
// Change the edit URL,
$post_type_object = get_post_type_object( $postdata->post_type );
$edit_url = admin_url( sprintf( $post_type_object->_edit_link . '&action=edit', $postdata->ID ) );
$loaddata[] = array(
'id' => $postdata->ID,
'url' => $post_url,
'edit_url' => $edit_url,
'title' => get_the_title( $postdata ),
'src' => add_query_arg( 'penci-sload-ajax', '1', $post_url ),
);
}
return $loaddata;
}
return false;
}
/**
* Comment redirect
*/
function comment_redirect(){
if( get_theme_mod( 'penci_loadnp_posts' ) && is_single() ){
add_filter( 'comment_post_redirect', array( $this, 'comment_redirect_hook' ) );
}
}
/**
* Add parameter ?penci-sload-ajax to the comment URL to refresh page after someone commented.
*/
function comment_redirect_hook( $url ){
if ( strpos( $_SERVER["HTTP_REFERER"], 'penci-sload-ajax' ) !== false ) {
$url = add_query_arg( 'penci-sload-ajax', 'true', $url );
}
return $url;
}
}
new PENCI_SINGLE_LOAD_POSTS();