jetpack / extensions / blocks / subscriber-login / class-jetpack-subscription-site.php

class-jetpack-subscription-site.php in Jetpack – WP Security, Backup, Speed, & Growth 16.3-a.5, at extensions/blocks/subscriber-login/class-jetpack-subscription-site.php

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1	<?php
2	/**
3	* Adds support for Jetpack Subscription Site feature.
4	*
5	* @package automattic/jetpack
6	* @since 13.3
7	*/
8
9	namespace Automattic\Jetpack\Extensions\Subscriber_Login;
10
11	use WP_Block_Template;
12	use WP_Post;
13
14	/**
15	* Jetpack_Subscription_Site class.
16	*/
17	class Jetpack_Subscription_Site {
18	/**
19	* Jetpack_Subscription_Site singleton instance.
20	*
21	* @var Jetpack_Subscription_Site\|null
22	*/
23	private static $instance;
24
25	/**
26	* Jetpack_Subscription_Site instance init.
27	*/
28	public static function init() {
29	if ( self::$instance === null ) {
30	self::$instance = new Jetpack_Subscription_Site();
31	}
32
33	return self::$instance;
34	}
35
36	/**
37	* Handles Subscriber Login block placements.
38	*
39	* @return void
40	*/
41	public function handle_subscriber_login_block_placements() {
42	$this->handle_subscriber_login_block_navigation_placement();
43	}
44
45	/**
46	* Returns true if context is recognized as a header element.
47	*
48	* @param WP_Block_Template\|WP_Post\|array $context The block template, template part, or pattern the anchor block belongs to.
49	*
50	* @return bool
51	*/
52	protected function is_header_context( $context ) {
53	if ( $context instanceof WP_Post && $context->post_type === 'wp_navigation' ) {
54	return true;
55	}
56
57	if ( $context instanceof WP_Block_Template && $context->area === 'header' ) {
58	return true;
59	}
60
61	return false;
62	}
63
64	/**
65	* Handles Subscriber Login block navigation placement.
66	*
67	* @return void
68	*/
69	protected function handle_subscriber_login_block_navigation_placement() {
70	$subscriber_login_navigation_enabled = get_option( 'jetpack_subscriptions_login_navigation_enabled', false );
71	if ( ! $subscriber_login_navigation_enabled ) {
72	return;
73	}
74
75	if ( ! wp_is_block_theme() ) { // TODO Fallback for classic themes.
76	return;
77	}
78
79	add_filter(
80	'hooked_block_types',
81	function ( $hooked_blocks, $relative_position, $anchor_block, $context ) {
82	if (
83	$anchor_block === 'core/navigation' &&
84	$relative_position === 'last_child' &&
85	self::is_header_context( $context )
86	) {
87	$hooked_blocks[] = 'jetpack/subscriber-login';
88	}
89
90	return $hooked_blocks;
91	},
92	10,
93	4
94	);
95	}
96	}
97