gutenberg / lib / experimental / interactivity-api / class-wp-interactivity-store.php

class-wp-interactivity-store.php in Gutenberg 16.2.1, at lib/experimental/interactivity-api/class-wp-interactivity-store.php

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1	<?php
2	/**
3	* WP_Interactivity_Store class
4	*
5	* Manages the initial state of the Interactivity API store in the server and
6	* its serialization so it can be restored in the browser upon hydration.
7	*
8	* @package Gutenberg
9	* @subpackage Interactivity API
10	*/
11
12	/**
13	* Manages the initial state of the Interactivity API store in the server and
14	* its serialization so it can be restored in the browser upon hydration.
15	*
16	* It's a private class, exposed by other functions, like `wp_store`.
17	*
18	* @access private
19	*/
20	class WP_Interactivity_Store {
21	/**
22	* Store.
23	*
24	* @var array
25	*/
26	private static $store = array();
27
28	/**
29	* Get store data.
30	*
31	* @return array
32	*/
33	static function get_data() {
34	return self::$store;
35	}
36
37	/**
38	* Merge data.
39	*
40	* @param array $data The data that will be merged with the existing store.
41	*/
42	static function merge_data( $data ) {
43	self::$store = array_replace_recursive( self::$store, $data );
44	}
45
46	/**
47	* Serialize store data to JSON.
48	*
49	* @return string\|false Serialized JSON data.
50	*/
51	static function serialize() {
52	// TODO: Escape?
53	return wp_json_encode( self::$store );
54	}
55
56	/**
57	* Reset the store data.
58	*/
59	static function reset() {
60	self::$store = array();
61	}
62
63	/**
64	* Render the store data.
65	*/
66	static function render() {
67	if ( empty( self::$store ) ) {
68	return;
69	}
70	$store = self::serialize();
71	echo "<script id=\"wp-interactivity-store-data\" type=\"application/json\">$store</script>";
72	}
73	}
74