/home/arranoyd/pi-konzalting/wp-content/plugins/siteorigin-panels/inc/sidebars-emulator.php
<?php
class SiteOrigin_Panels_Sidebars_Emulator {
private $all_posts_widgets;
function __construct() {
$this->all_posts_widgets = array();
add_action( 'widgets_init', array( $this, 'register_widgets' ) );
add_filter( 'sidebars_widgets', array( $this, 'add_widgets_to_sidebars' ) );
}
/**
* Get the single instance.
*
* @return SiteOrigin_Panels_Sidebars_Emulator
*/
static function single() {
static $single;
return empty( $single ) ? $single = new self() : $single;
}
/**
* @param string $name The name of the function
* @param array $args
*
* @return mixed
*/
function __call( $name, $args ) {
// Check if this is a filter option call
preg_match( '/filter_option_widget_(.+)/', $name, $opt_matches );
if ( ! empty( $opt_matches ) && count( $opt_matches ) > 1 ) {
$opt_name = $opt_matches[1];
global $wp_widget_factory;
foreach ( $wp_widget_factory->widgets as $widget ) {
$widget_class = get_class( $widget );
if ( $widget->id_base != $opt_name ) {
continue;
}
foreach ( $this->all_posts_widgets as $post_widgets ) {
foreach ( $post_widgets as $widget_instance ) {
if ( empty( $widget_instance['panels_info']['class'] ) ) {
continue;
}
$instance_class = $widget_instance['panels_info']['class'];
$sidebar_id = $this->get_sidebar_id( $widget_instance );
if ( $instance_class == $widget_class && ! empty( $sidebar_id ) ) {
//The option value uses only the widget id number as keys
preg_match( '/-([0-9]+$)/', $sidebar_id, $num_match );
$args[0][ $num_match[1] ] = $widget_instance;
}
}
}
}
return $args[0];
}
}
/**
* Register all the current widgets so we can filter the get_option('widget_...') values to add instances
*/
function register_widgets() {
$current_url = add_query_arg( false, false );
$cache_key = md5( $current_url );
// Get the ID of the current post
$post_id = wp_cache_get( $cache_key, 'siteorigin_url_to_postid' );
if ( false === $post_id ) {
$post_id = url_to_postid( $current_url );
wp_cache_set( $cache_key, $post_id, 'siteorigin_url_to_postid', 3 * HOUR_IN_SECONDS );
}
if ( empty( $post_id ) ) {
// Maybe this is the home page
$current_url_path = parse_url( $current_url, PHP_URL_PATH );
$home_url_path = parse_url( trailingslashit( home_url() ), PHP_URL_PATH );
if ( $current_url_path === $home_url_path && get_option( 'page_on_front' ) != 0 ) {
$post_id = absint( get_option( 'page_on_front' ) );
}
}
if ( empty( $post_id ) ) {
return;
}
$panels_data = get_post_meta( $post_id, 'panels_data', true );
$widget_option_names = $this->get_widget_option_names( $post_id, $panels_data );
$widget_option_names = array_unique( $widget_option_names );
foreach ( $widget_option_names as $widget_option_name ) {
add_filter( 'option_' . $widget_option_name, array( $this, 'filter_option_' . $widget_option_name ) );
}
}
/**
* Recursively get all widget option names from $panels_data and store widget instances in $this->all_posts_widgets.
*
* @param int|string $post_id
* @param array $panels_data
*
* @return array A list of widget option names from the post and its Layout Builder widgets.
*/
private function get_widget_option_names( $post_id, $panels_data ) {
if( empty( $panels_data ) || empty( $panels_data[ 'widgets' ] ) ) {
return array();
}
if( empty( $this->all_posts_widgets[ $post_id ] ) ) {
$this->all_posts_widgets[ $post_id ] = array();
}
$widget_option_names = array();
$widgets = $panels_data['widgets'];
foreach ( $widgets as $i => $widget_instance ) {
if ( empty( $widget_instance['panels_info']['class'] ) ) {
continue;
}
if( $widget_instance['panels_info']['class'] === 'SiteOrigin_Panels_Widgets_Layout' ) {
// Add the widget option names from the layout widget
$widget_option_names = array_merge( $widget_option_names, $this->get_widget_option_names( $post_id, $widget_instance[ 'panels_data' ] ) );
}
$sidebar_id = $this->get_sidebar_id( $widget_instance );
if ( ! empty( $sidebar_id ) ) {
$widget_option_names[] = $widget_instance['option_name'];
}
$this->all_posts_widgets[ $post_id ][] = $widget_instance;
}
return $widget_option_names;
}
/**
* This should be called when a post is saved to set ids required for `is_active_widget` checks. It's necessary to
* do this separately for widgets that call `is_active_widget` in their constructors, e.g. some of Jetpack's widgets
* like Twitter Timeline, Milestone etc.
*
* @param $widgets array The widgets in the layout from $panels_data for which to generate ids.
* @param $post_id int The post id which is used to derive ids.
* @param int $start This keeps track of recursive depth.
*
* @return array The widgets array containing updated widgets.
*/
public function generate_sidebar_widget_ids( $widgets, $post_id, $start = 1 ) {
foreach ( $widgets as $i => &$widget_instance ) {
$id_val = $post_id . strval( ( 10000 * $start ) + intval( $i ) );
$widget_class = $widget_instance['panels_info']['class'];
if( $widget_instance['panels_info']['class'] === 'SiteOrigin_Panels_Widgets_Layout' ) {
if ( ! empty( $widget_instance['panels_data']['widgets'] ) ) {
// Recursively set widget ids in layout widgets.
$widget_instance[ 'panels_data' ]['widgets'] = $this->generate_sidebar_widget_ids( $widget_instance[ 'panels_data' ]['widgets'], $post_id, ++$start );
}
}
/** @var WP_Widget $widget */
$widget = SiteOrigin_Panels::get_widget_instance( $widget_class );
if ( ! empty( $widget ) ) {
$widget_instance['so_sidebar_emulator_id'] = $widget->id_base . '-' . $id_val;
$widget_instance['option_name'] = $widget->option_name;
}
}
return $widgets;
}
/**
* Add a sidebar for SiteOrigin Panels widgets so they are correctly detected by is_active_widget
*
* @param $sidebars_widgets
*
* @return array
*/
function add_widgets_to_sidebars( $sidebars_widgets ) {
if ( empty( $this->all_posts_widgets ) ) {
return $sidebars_widgets;
}
foreach ( array_keys( $this->all_posts_widgets ) as $post_id ) {
$post_widgets = $this->all_posts_widgets[ $post_id ];
foreach ( $post_widgets as $widget_instance ) {
$sidebar_id = $this->get_sidebar_id( $widget_instance );
if ( empty( $sidebar_id ) ) {
continue;
}
//Sidebars widgets and the global $wp_registered widgets use full widget ids as keys
$siteorigin_panels_widget_ids[] = $sidebar_id;
}
if ( ! empty( $siteorigin_panels_widget_ids ) ) {
$sidebars_widgets[ 'sidebar-siteorigin_panels-post-' . $post_id ] = $siteorigin_panels_widget_ids;
}
}
return $sidebars_widgets;
}
/**
* The 'id' key was changed to 'so_sidebar_emulator_id' to try avoid conflicts with widgets that already had
* an 'id' key.
*
* @param $instance
*
* @return null
*/
private function get_sidebar_id( $instance ) {
$sidebar_id = null;
if ( ! empty( $instance['id'] ) ) {
$sidebar_id = $instance['id'];
} else if ( ! empty( $instance['so_sidebar_emulator_id'] ) ) {
$sidebar_id = $instance['so_sidebar_emulator_id'];
}
return $sidebar_id;
}
}
SiteOrigin_Panels_Sidebars_Emulator::single();