elementor / modules / variables / utils / template-library-variables-snapshot-builder.php

template-library-variables-snapshot-builder.php in Elementor Website Builder – more than just a page builder 4.3.0-beta3, at modules/variables/utils/template-library-variables-snapshot-builder.php

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1	<?php
2
3	namespace Elementor\Modules\Variables\Utils;
4
5	use Elementor\Core\Utils\Template_Library_Element_Iterator;
6	use Elementor\Core\Utils\Template_Library_Import_Export_Utils;
7	use Elementor\Core\Utils\Template_Library_Snapshot_Processor;
8	use Elementor\Modules\Variables\Storage\Constants;
9	use Elementor\Modules\Variables\Storage\Variables_Collection;
10	use Elementor\Modules\Variables\Storage\Variables_Repository;
11	use Elementor\Plugin;
12
13	if ( ! defined( 'ABSPATH' ) ) {
14	exit;
15	}
16
17	class Template_Library_Variables_Snapshot_Builder extends Template_Library_Snapshot_Processor {
18
19	private static ?self $instance = null;
20
21	public static function make(): self {
22	if ( null === self::$instance ) {
23	self::$instance = new self();
24	}
25	return self::$instance;
26	}
27
28	public static function extract_used_variable_ids_from_elements( array $elements ): array {
29	$ids = [];
30	$variable_types = Variable_Type_Keys::get_all();
31
32	if ( empty( $elements ) ) {
33	return [];
34	}
35
36	Template_Library_Element_Iterator::iterate(
37	$elements,
38	function ( $element_data ) use ( &$ids, $variable_types ) {
39	self::collect_variable_ids_from_element( $element_data, $ids, $variable_types );
40	return $element_data;
41	}
42	);
43
44	return array_values( array_unique( $ids ) );
45	}
46
47	public static function build_snapshot_for_ids( array $ids ): ?array {
48	if ( empty( $ids ) ) {
49	return null;
50	}
51
52	$instance = self::make();
53	if ( ! $instance->can_access_repository() ) {
54	return null;
55	}
56
57	$ids = Template_Library_Import_Export_Utils::normalize_string_ids( $ids );
58	if ( empty( $ids ) ) {
59	return null;
60	}
61
62	$all_data = $instance->load_current_data();
63	$all_variables = $all_data['items'] ?? [];
64	$filtered_data = Template_Library_Import_Export_Utils::filter_items_by_ids( $all_variables, $ids );
65
66	if ( empty( $filtered_data ) ) {
67	return null;
68	}
69
70	return self::build_snapshot_from_data(
71	$filtered_data,
72	$all_data['version'] ?? Constants::FORMAT_VERSION_V1
73	);
74	}
75
76	public static function build_snapshot_for_elements( array $elements, ?array $global_classes_snapshot = null ): ?array {
77	$ids = self::extract_used_variable_ids_from_elements( $elements );
78
79	if ( ! empty( $global_classes_snapshot ) ) {
80	$ids_from_classes = self::extract_variable_ids_from_data( $global_classes_snapshot );
81	$ids = array_merge( $ids, $ids_from_classes );
82	}
83
84	$ids = array_values( array_unique( $ids ) );
85
86	if ( empty( $ids ) ) {
87	return null;
88	}
89
90	return self::build_snapshot_for_ids( $ids );
91	}
92
93	public static function extract_variable_ids_from_data( array $data ): array {
94	$ids = [];
95	$variable_types = Variable_Type_Keys::get_all();
96	self::extract_variable_ids_recursive( $data, $ids, $variable_types );
97	return array_values( array_unique( $ids ) );
98	}
99
100	public static function merge_snapshot_and_get_id_map( array $snapshot ): array {
101	return self::make()->merge_and_get_id_map( $snapshot );
102	}
103
104	public static function create_snapshot_as_new( array $snapshot ): array {
105	return self::make()->create_all_as_new( $snapshot );
106	}
107
108	protected function is_matching_item( array $existing_item, array $incoming_item ): bool {
109	// For variables, if the type and label match, we consider them the same item
110	// when merging, so we reuse the existing variable and ignore incoming values or extra fields.
111	return ( $existing_item['type'] ?? '' ) === ( $incoming_item['type'] ?? '' );
112	}
113
114	protected function get_item_prefix(): string {
115	return Template_Library_Import_Export_Utils::VARIABLE_ID_PREFIX;
116	}
117
118	protected function get_max_items(): int {
119	return Constants::TOTAL_VARIABLES_COUNT;
120	}
121
122	protected function can_access_repository(): bool {
123	return null !== $this->get_repository_or_null();
124	}
125
126	protected function load_current_data(): array {
127	$repository = $this->get_repository_or_null();
128
129	if ( ! $repository ) {
130	return [
131	'items' => [],
132	'order' => [],
133	'watermark' => 0,
134	'version' => Constants::FORMAT_VERSION_V1,
135	];
136	}
137
138	$collection = $repository->load();
139	$serialized = $collection->serialize();
140
141	return [
142	'items' => $serialized['data'] ?? [],
143	'order' => [],
144	'watermark' => $serialized['watermark'] ?? 0,
145	'version' => $serialized['version'] ?? Constants::FORMAT_VERSION_V1,
146	];
147	}
148
149	protected function parse_incoming_snapshot( array $snapshot ): ?array {
150	$incoming_data = $snapshot['data'] ?? [];
151	if ( empty( $incoming_data ) ) {
152	return null;
153	}
154	return $snapshot;
155	}
156
157	protected function get_incoming_items( array $parsed_snapshot ): array {
158	return $parsed_snapshot['data'] ?? [];
159	}
160
161	protected function count_current_items( array $items ): int {
162	$count = 0;
163	foreach ( $items as $item ) {
164	if ( empty( $item['deleted'] ) ) {
165	++$count;
166	}
167	}
168	return $count;
169	}
170
171	protected function save_data( array $data, array $metadata ): array {
172	$repository = $this->get_repository_or_null();
173
174	if ( ! $repository ) {
175	return [];
176	}
177
178	$items = $data['updated_items'] ?? [];
179
180	$updated_collection = Variables_Collection::hydrate( [
181	'data' => $items,
182	'watermark' => $metadata['watermark'] ?? 0,
183	'version' => $metadata['version'] ?? Constants::FORMAT_VERSION_V1,
184	] );
185
186	$repository->save( $updated_collection );
187
188	return [
189	'variables' => [
190	'data' => $items,
191	'watermark' => $updated_collection->watermark(),
192	],
193	];
194	}
195
196	private static function extract_variable_ids_recursive( $data, array &$ids, array $variable_types ): void {
197	if ( ! is_array( $data ) ) {
198	return;
199	}
200
201	if ( isset( $data['$$type'] ) && in_array( $data['$$type'], $variable_types, true ) ) {
202	if ( isset( $data['value'] ) && is_string( $data['value'] ) && '' !== $data['value'] ) {
203	$ids[] = $data['value'];
204	}
205	}
206
207	foreach ( $data as $value ) {
208	if ( is_array( $value ) ) {
209	self::extract_variable_ids_recursive( $value, $ids, $variable_types );
210	}
211	}
212	}
213
214	private static function collect_variable_ids_from_element( array $element_data, array &$ids, array $variable_types ): void {
215	if ( ! empty( $element_data['settings'] ) && is_array( $element_data['settings'] ) ) {
216	self::extract_variable_ids_recursive( $element_data['settings'], $ids, $variable_types );
217	}
218
219	if ( ! empty( $element_data['styles'] ) && is_array( $element_data['styles'] ) ) {
220	self::extract_variable_ids_recursive( $element_data['styles'], $ids, $variable_types );
221	}
222	}
223
224	private function get_repository_or_null(): ?Variables_Repository {
225	$kit = Plugin::instance()->kits_manager->get_active_kit();
226	if ( ! $kit ) {
227	return null;
228	}
229
230	return new Variables_Repository( $kit );
231	}
232
233	private static function build_snapshot_from_data( array $data, int $version ): array {
234	return [
235	'data' => $data,
236	'watermark' => 0,
237	'version' => $version,
238	];
239	}
240	}
241