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<?php
/**
* Pay with PayPal block (aka Simple Payments).
*
* @since 9.0.0
*
* @package automattic/jetpack
*/
namespace Automattic\Jetpack\Extensions\SimplePayments;
use Automattic\Jetpack\Blocks;
use Jetpack_Simple_Payments;
use WP_Post;
const FEATURE_NAME = 'simple-payments';
const BLOCK_NAME = 'jetpack/' . FEATURE_NAME;
/**
* Registers the block for use in Gutenberg
* This is done via an action so that we can disable
* registration if we need to.
*/
function register_block() {
Blocks::jetpack_register_block(
__DIR__,
array(
'render_callback' => __NAMESPACE__ . '\render_block',
'plan_check' => true,
)
);
}
add_action( 'init', __NAMESPACE__ . '\register_block' );
/**
* Pay with PayPal block dynamic rendering.
*
* @param array $attr Array containing the block attributes.
* @param string $content String containing the block content.
*
* @return string
*/
function render_block( $attr, $content ) {
// Do nothing if block content is a `simple-payment` shortcode.
if ( preg_match( '/\[simple-payment(.*)]/', $content ) ) {
return $content;
}
// Keep content as-is if rendered in other contexts than frontend (i.e. feed, emails, API, etc.).
if ( ! jetpack_is_frontend() ) {
return $content;
}
$simple_payments = Jetpack_Simple_Payments::get_instance();
if ( ! $simple_payments->is_valid( $attr ) ) {
return '';
}
$simple_payments->enqueue_frontend_assets();
// For AMP requests, make sure the purchase link redirects to the non-AMP post URL.
if ( Blocks::is_amp_request() ) {
$content = preg_replace(
'#(<a class="jetpack-simple-payments-purchase".*)rel="(.*)"(.*>.*</a>)#i',
'$1rel="$2 noamphtml"$3',
$content
);
return $content;
}
// Augment block UI with a PayPal button if rendered on the frontend.
$product_id = $attr['productId'];
$dom_id = wp_unique_id( "jetpack-simple-payments-{$product_id}_" );
$is_multiple = get_post_meta( $product_id, 'spay_multiple', true ) || '0';
$simple_payments->setup_paypal_checkout_button( $product_id, $dom_id, $is_multiple );
$purchase_box = $simple_payments->output_purchase_box( $dom_id, $is_multiple );
$content = preg_replace( '#<a class="jetpack-simple-payments-purchase(.*)</a>#i', $purchase_box, $content );
return $content;
}
/**
* Determine if AMP should be disabled on posts having "Pay with PayPal" blocks.
*
* @param bool $skip Skipped.
* @param int $post_id Post ID.
* @param WP_Post $post Post.
*
* @return bool Whether to skip the post from AMP.
*/
function amp_skip_post( $skip, $post_id, $post ) {
// When AMP is on standard mode, there are no non-AMP posts to link to where the purchase can be completed, so let's
// prevent the post from being available in AMP.
if ( function_exists( 'amp_is_canonical' ) && \amp_is_canonical() && has_block( BLOCK_NAME, $post->post_content ) ) {
return true;
}
return $skip;
}
add_filter( 'amp_skip_post', __NAMESPACE__ . '\amp_skip_post', 10, 3 );