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<?php
/**
* Base functionality for registering Schema-related functionality and filtering Yoast SEO output.
*
* @package WordPress SEO
* @subpackage WordPress SEO Video
*/
/**
* Initializes videoObject and attaches it to the rest of the Schema.
*
* @package WordPress SEO Video
* @since 11.1
*/
class WPSEO_Video_Schema {
/**
* The hash used in the video identifier.
*/
const VIDEO_HASH = '#video';
/**
* @var WPSEO_Video_Schema_VideoObject
*/
public $object;
/**
* WPSEO_Video_Schema constructor.
*/
public function __construct() {
add_filter( 'wpseo_schema_graph_pieces', array( $this, 'add_graph_piece' ), 11, 2 );
add_filter( 'wpseo_schema_article', array( $this, 'filter_article' ), 11 );
add_filter( 'wpseo_schema_webpage', array( $this, 'filter_webpage' ), 11 );
}
/**
* Adds the videoObject graph piece.
*
* @param array $pieces The Schema pieces to output.
* @param WPSEO_Schema_Context $context A value object with context variables.
*
* @return array $pieces The Schema pieces to output.
*/
public function add_graph_piece( $pieces, $context ) {
$this->object = new WPSEO_Video_Schema_VideoObject( $context );
$pieces[] = $this->object;
return $pieces;
}
/**
* Changes Article Schema output.
*
* @param array $data Article Schema data.
*
* @return array $data Article Schema data.
*/
public function filter_article( $data ) {
if ( $this->object->is_needed() ) {
$data['video'] = array( $this->get_video_id() );
}
return $data;
}
/**
* Changes WebPage Schema output.
*
* @param array $data WebPage Schema data.
*
* @return array $data WebPage Schema data.
*/
public function filter_webpage( $data ) {
if ( ! is_singular() ) {
return $data;
}
/**
* Filter: 'wpseo_schema_article_post_types' - Allow changing for which post types we output Article schema.
*
* @api string[] $post_types The post types for which we output Article.
*/
$post_types = apply_filters( 'wpseo_schema_article_post_types', array( 'post' ) );
if ( in_array( get_post_type(), $post_types ) ) {
return $data;
}
if ( $this->object->is_needed() ) {
$data['video'] = array( $this->get_video_id() );
}
return $data;
}
/**
* Returns an array with the video identifier.
*
* @return array Array with the video identifier.
*/
private function get_video_id() {
return array( '@id' => WPSEO_Frontend::get_instance()->canonical( false ) . self::VIDEO_HASH );
}
}