elementor / core / base / document.php

document.php in Elementor Website Builder – more than just a page builder 3.9.1, at core/base/document.php

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1	<?php
2	namespace Elementor\Core\Base;
3
4	use Elementor\Core\Base\Elements_Iteration_Actions\Assets as Assets_Iteration_Action;
5	use Elementor\Core\Base\Elements_Iteration_Actions\Base as Elements_Iteration_Action;
6	use Elementor\Core\Behaviors\Interfaces\Lock_Behavior;
7	use Elementor\Core\Files\CSS\Post as Post_CSS;
8	use Elementor\Core\Settings\Page\Model as Page_Model;
9	use Elementor\Core\Utils\Exceptions;
10	use Elementor\Includes\Elements\Container;
11	use Elementor\Plugin;
12	use Elementor\Controls_Manager;
13	use Elementor\Controls_Stack;
14	use Elementor\TemplateLibrary\Source_Local;
15	use Elementor\User;
16	use Elementor\Core\Settings\Manager as SettingsManager;
17	use Elementor\Utils;
18	use Elementor\Widget_Base;
19	use Elementor\Core\Settings\Page\Manager as PageManager;
20	use ElementorPro\Modules\Library\Widgets\Template;
21
22	if ( ! defined( 'ABSPATH' ) ) {
23	exit; // Exit if accessed directly
24	}
25
26	/**
27	* Elementor document.
28	*
29	* An abstract class that provides the needed properties and methods to
30	* manage and handle documents in inheriting classes.
31	*
32	* @since 2.0.0
33	* @abstract
34	*/
35	abstract class Document extends Controls_Stack {
36
37	/**
38	* Document type meta key.
39	*/
40	const TYPE_META_KEY = '_elementor_template_type';
41	const PAGE_META_KEY = '_elementor_page_settings';
42
43	const BUILT_WITH_ELEMENTOR_META_KEY = '_elementor_edit_mode';
44
45	/**
46	* Document publish status.
47	*/
48	const STATUS_PUBLISH = 'publish';
49
50	/**
51	* Document draft status.
52	*/
53	const STATUS_DRAFT = 'draft';
54
55	/**
56	* Document private status.
57	*/
58	const STATUS_PRIVATE = 'private';
59
60	/**
61	* Document autosave status.
62	*/
63	const STATUS_AUTOSAVE = 'autosave';
64
65	/**
66	* Document pending status.
67	*/
68	const STATUS_PENDING = 'pending';
69
70
71	private $main_id;
72
73	/**
74	* @var bool
75	*/
76	private $is_saving = false;
77
78	private static $properties = [];
79
80	/**
81	* @var Elements_Iteration_Action[]
82	*/
83	private $elements_iteration_actions = [];
84
85	/**
86	* Document post data.
87	*
88	* Holds the document post data.
89	*
90	* @since 2.0.0
91	* @access protected
92	*
93	* @var \WP_Post WordPress post data.
94	*/
95	protected $post;
96
97	/**
98	* @since 2.1.0
99	* @access protected
100	* @static
101	*/
102	protected static function get_editor_panel_categories() {
103	return Plugin::$instance->elements_manager->get_categories();
104	}
105
106	/**
107	* Get properties.
108	*
109	* Retrieve the document properties.
110	*
111	* @since 2.0.0
112	* @access public
113	* @static
114	*
115	* @return array Document properties.
116	*/
117	public static function get_properties() {
118	return [
119	'has_elements' => true,
120	'is_editable' => true,
121	'edit_capability' => '',
122	'show_in_finder' => true,
123	'show_on_admin_bar' => true,
124	'support_kit' => false,
125	];
126	}
127
128	/**
129	* @since 2.1.0
130	* @access public
131	* @static
132	*/
133	public static function get_editor_panel_config() {
134	$default_route = 'panel/elements/categories';
135
136	if ( ! Plugin::instance()->role_manager->user_can( 'design' ) ) {
137	$default_route = 'panel/page-settings/settings';
138	}
139
140	return [
141	'title' => static::get_title(), // JS Container title.
142	'widgets_settings' => [],
143	'elements_categories' => static::get_editor_panel_categories(),
144	'default_route' => $default_route,
145	'has_elements' => static::get_property( 'has_elements' ),
146	'support_kit' => static::get_property( 'support_kit' ),
147	'messages' => [
148	/* translators: %s: Document title. */
149	'publish_notification' => sprintf( esc_html__( 'Hurray! Your %s is live.', 'elementor' ), static::get_title() ),
150	],
151	];
152	}
153
154	/**
155	* Get element title.
156	*
157	* Retrieve the element title.
158	*
159	* @since 2.0.0
160	* @access public
161	* @static
162	*
163	* @return string Element title.
164	*/
165	public static function get_title() {
166	return esc_html__( 'Document', 'elementor' );
167	}
168
169	public static function get_plural_title() {
170	return static::get_title();
171	}
172
173	public static function get_add_new_title() {
174	return sprintf( esc_html__( 'Add New %s', 'elementor' ), static::get_title() );
175	}
176
177	/**
178	* Get property.
179	*
180	* Retrieve the document property.
181	*
182	* @since 2.0.0
183	* @access public
184	* @static
185	*
186	* @param string $key The property key.
187	*
188	* @return mixed The property value.
189	*/
190	public static function get_property( $key ) {
191	$id = static::get_class_full_name();
192
193	if ( ! isset( self::$properties[ $id ] ) ) {
194	self::$properties[ $id ] = static::get_properties();
195	}
196
197	return self::get_items( self::$properties[ $id ], $key );
198	}
199
200	/**
201	* @since 2.0.0
202	* @access public
203	* @static
204	*/
205	public static function get_class_full_name() {
206	return get_called_class();
207	}
208
209	public static function get_create_url() {
210	$properties = static::get_properties();
211
212	// BC Support - Each document should define it own CPT this code is for BC support.
213	$cpt = Source_Local::CPT;
214
215	if ( isset( $properties['cpt'][0] ) ) {
216	$cpt = $properties['cpt'][0];
217	}
218
219	return Plugin::$instance->documents->get_create_new_post_url( $cpt, static::get_type() );
220	}
221
222	public function get_name() {
223	return static::get_type();
224	}
225
226	/**
227	* @since 2.0.0
228	* @access public
229	*/
230	public function get_unique_name() {
231	return static::get_type() . '-' . $this->post->ID;
232	}
233
234	/**
235	* @since 2.3.0
236	* @access public
237	*/
238	public function get_post_type_title() {
239	$post_type_object = get_post_type_object( $this->post->post_type );
240
241	return $post_type_object->labels->singular_name;
242	}
243
244	/**
245	* @since 2.0.0
246	* @access public
247	*/
248	public function get_main_id() {
249	if ( ! $this->main_id ) {
250	$post_id = $this->post->ID;
251
252	$parent_post_id = wp_is_post_revision( $post_id );
253
254	if ( $parent_post_id ) {
255	$post_id = $parent_post_id;
256	}
257
258	$this->main_id = $post_id;
259	}
260
261	return $this->main_id;
262	}
263
264	/**
265	* @return null\|Lock_Behavior
266	*/
267	public static function get_lock_behavior_v2() {
268	return null;
269	}
270
271	/**
272	* @since 2.0.0
273	* @access public
274	*
275	* @param $data
276	*
277	* @throws \Exception If the widget was not found.
278	*
279	* @return string
280	*/
281	public function render_element( $data ) {
282	// Start buffering
283	ob_start();
284
285	/** @var Widget_Base $widget */
286	$widget = Plugin::$instance->elements_manager->create_element_instance( $data );
287
288	if ( ! $widget ) {
289	throw new \Exception( 'Widget not found.' );
290	}
291
292	$widget->render_content();
293
294	$render_html = ob_get_clean();
295
296	return $render_html;
297	}
298
299	/**
300	* @since 2.0.0
301	* @access public
302	*/
303	public function get_main_post() {
304	return get_post( $this->get_main_id() );
305	}
306
307	public function get_container_attributes() {
308	$id = $this->get_main_id();
309
310	$attributes = [
311	'data-elementor-type' => $this->get_name(),
312	'data-elementor-id' => $id,
313	'class' => 'elementor elementor-' . $id,
314	];
315
316	$version_meta = $this->get_main_meta( '_elementor_version' );
317
318	if ( version_compare( $version_meta, '2.5.0', '<' ) ) {
319	$attributes['class'] .= ' elementor-bc-flex-widget';
320	}
321
322	if ( Plugin::$instance->preview->is_preview() ) {
323	$attributes['data-elementor-title'] = static::get_title();
324	} else {
325	$elementor_settings = $this->get_frontend_settings();
326	if ( ! empty( $elementor_settings ) ) {
327	$attributes['data-elementor-settings'] = wp_json_encode( $elementor_settings );
328	}
329	}
330
331	// apply this filter to allow the attributes to be modified by different sources
332	return apply_filters( 'elementor/document/wrapper_attributes', $attributes, $this );
333	}
334
335	/**
336	* @since 2.0.0
337	* @access public
338	*/
339	public function get_wp_preview_url() {
340	$main_post_id = $this->get_main_id();
341	$document = $this;
342
343	// Ajax request from editor.
344	// PHPCS - only reading the value from $_POST['initial_document_id'].
345	if ( ! empty( $_POST['initial_document_id'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing
346	// PHPCS - only reading the value from $_POST['initial_document_id'].
347	$document = Plugin::$instance->documents->get( $_POST['initial_document_id'] ); // phpcs:ignore WordPress.Security.NonceVerification.Missing
348	}
349
350	$url = get_preview_post_link(
351	$document->get_main_id(),
352	[
353	'preview_id' => $main_post_id,
354	'preview_nonce' => wp_create_nonce( 'post_preview_' . $main_post_id ),
355	]
356	);
357
358	/**
359	* Document "WordPress preview" URL.
360	*
361	* Filters the WordPress preview URL.
362	*
363	* @since 2.0.0
364	*
365	* @param string $url WordPress preview URL.
366	* @param Document $this The document instance.
367	*/
368	$url = apply_filters( 'elementor/document/urls/wp_preview', $url, $this );
369
370	return $url;
371	}
372
373	/**
374	* @since 2.0.0
375	* @access public
376	*/
377	public function get_exit_to_dashboard_url() {
378	$url = get_edit_post_link( $this->get_main_id(), 'raw' );
379
380	/**
381	* Document "exit to dashboard" URL.
382	*
383	* Filters the "Exit To Dashboard" URL.
384	*
385	* @since 2.0.0
386	*
387	* @param string $url The exit URL
388	* @param Document $this The document instance.
389	*/
390	$url = apply_filters( 'elementor/document/urls/exit_to_dashboard', $url, $this );
391
392	return $url;
393	}
394
395	/**
396	* Get All Post Type URL
397	*
398	* Get url of the page which display all the posts of the current active document's post type.
399	*
400	* @since 3.7.0
401	*
402	* @return string $url
403	*/
404	public function get_all_post_type_url() {
405	$post_type = get_post_type( $this->get_main_id() );
406
407	$url = get_admin_url() . 'edit.php';
408
409	if ( 'post' !== $post_type ) {
410	$url .= '?post_type=' . $post_type;
411	}
412
413	/**
414	* Document "display all post type" URL.
415	*
416	* @since 3.7.0
417	*
418	* @param string $url The URL.
419	* @param Document $this The document instance.
420	*/
421	$url = apply_filters( 'elementor/document/urls/all_post_type', $url, $this );
422
423	return $url;
424	}
425
426	/**
427	* Get Main WP dashboard URL.
428	*
429	* @since 3.7.0
430	*
431	* @return string $url
432	*/
433	protected function get_main_dashboard_url() {
434	$url = get_dashboard_url();
435
436	/**
437	* Document "Main Dashboard" URL.
438	*
439	* @since 3.7.0
440	*
441	* @param string $url The URL.
442	* @param Document $this The document instance.
443	*/
444	$url = apply_filters( 'elementor/document/urls/main_dashboard', $url, $this );
445
446	return $url;
447	}
448
449	/**
450	* Get auto-saved post revision.
451	*
452	* Retrieve the auto-saved post revision that is newer than current post.
453	*
454	* @since 2.0.0
455	* @access public
456	*
457	*
458	* @return bool\|Document
459	*/
460
461	public function get_newer_autosave() {
462	$autosave = $this->get_autosave();
463
464	// Detect if there exists an autosave newer than the post.
465	if ( $autosave && mysql2date( 'U', $autosave->get_post()->post_modified_gmt, false ) > mysql2date( 'U', $this->post->post_modified_gmt, false ) ) {
466	return $autosave;
467	}
468
469	return false;
470	}
471
472	/**
473	* @since 2.0.0
474	* @access public
475	*/
476	public function is_autosave() {
477	return wp_is_post_autosave( $this->post->ID );
478	}
479
480	/**
481	* Check if the current document is a 'revision'
482	*
483	* @return bool
484	*/
485	public function is_revision() {
486	return 'revision' === $this->post->post_type;
487	}
488
489	/**
490	* Checks if the current document status is 'trash'.
491	*
492	* @return bool
493	*/
494	public function is_trash() {
495	return 'trash' === $this->post->post_status;
496	}
497
498	/**
499	* @since 2.0.0
500	* @access public
501	*
502	* @param int $user_id
503	* @param bool $create
504	*
505	* @return bool\|Document
506	*/
507	public function get_autosave( $user_id = 0, $create = false ) {
508	if ( ! $user_id ) {
509	$user_id = get_current_user_id();
510	}
511
512	$autosave_id = $this->get_autosave_id( $user_id );
513
514	if ( $autosave_id ) {
515	$document = Plugin::$instance->documents->get( $autosave_id );
516	} elseif ( $create ) {
517	$autosave_id = wp_create_post_autosave( [
518	'post_ID' => $this->post->ID,
519	'post_type' => $this->post->post_type,
520	'post_title' => $this->post->post_title,
521	'post_excerpt' => $this->post->post_excerpt,
522	// Hack to cause $autosave_is_different=true in `wp_create_post_autosave`.
523	'post_content' => '<!-- Created With Elementor -->',
524	'post_modified' => current_time( 'mysql' ),
525	] );
526
527	Plugin::$instance->db->copy_elementor_meta( $this->post->ID, $autosave_id );
528
529	$document = Plugin::$instance->documents->get( $autosave_id );
530	$document->save_template_type();
531	} else {
532	$document = false;
533	}
534
535	return $document;
536	}
537
538	/**
539	* Add/Remove edit link in dashboard.
540	*
541	* Add or remove an edit link to the post/page action links on the post/pages list table.
542	*
543	* Fired by `post_row_actions` and `page_row_actions` filters.
544	*
545	* @access public
546	*
547	* @param array $actions An array of row action links.
548	*
549	* @return array An updated array of row action links.
550	*/
551	public function filter_admin_row_actions( $actions ) {
552	if ( $this->is_built_with_elementor() && $this->is_editable_by_current_user() ) {
553	$actions['edit_with_elementor'] = sprintf(
554	'<a href="%1$s">%2$s</a>',
555	$this->get_edit_url(),
556	__( 'Edit with Elementor', 'elementor' )
557	);
558	}
559
560	return $actions;
561	}
562
563	/**
564	* @since 2.0.0
565	* @access public
566	*/
567	public function is_editable_by_current_user() {
568	$edit_capability = static::get_property( 'edit_capability' );
569	if ( $edit_capability && ! current_user_can( $edit_capability ) ) {
570	return false;
571	}
572
573	return self::get_property( 'is_editable' ) && User::is_current_user_can_edit( $this->get_main_id() );
574	}
575
576	/**
577	* @since 2.9.0
578	* @access protected
579	*/
580	protected function get_initial_config() {
581	// Get document data after the scripts hook - so plugins can run compatibility before get data, but before enqueue the editor script - so elements can enqueue their own scripts that depended in editor script.
582
583	$locked_user = Plugin::$instance->editor->get_locked_user( $this->get_main_id() );
584
585	if ( $locked_user ) {
586	$locked_user = $locked_user->display_name;
587	}
588
589	$post_type_object = get_post_type_object( $this->get_main_post()->post_type );
590
591	$settings = SettingsManager::get_settings_managers_config();
592
593	$config = [
594	'id' => $this->get_main_id(),
595	'type' => $this->get_name(),
596	'version' => $this->get_main_meta( '_elementor_version' ),
597	'settings' => $settings['page'],
598	'remoteLibrary' => $this->get_remote_library_config(),
599	'last_edited' => $this->get_last_edited(),
600	'panel' => static::get_editor_panel_config(),
601	'container' => 'body',
602	'post_type_title' => $this->get_post_type_title(),
603	'user' => [
604	'can_publish' => current_user_can( $post_type_object->cap->publish_posts ),
605
606	// Deprecated config since 2.9.0.
607	'locked' => $locked_user,
608	],
609	'urls' => [
610	'exit_to_dashboard' => $this->get_exit_to_dashboard_url(), // WP post type edit page
611	'all_post_type' => $this->get_all_post_type_url(),
612	'preview' => $this->get_preview_url(),
613	'wp_preview' => $this->get_wp_preview_url(),
614	'permalink' => $this->get_permalink(),
615	'have_a_look' => $this->get_have_a_look_url(),
616	'main_dashboard' => $this->get_main_dashboard_url(),
617	],
618	];
619
620	do_action( 'elementor/document/before_get_config', $this );
621
622	if ( static::get_property( 'has_elements' ) ) {
623	$container_config = [];
624	$experiments_manager = Plugin::$instance->experiments;
625
626	if ( $experiments_manager->is_feature_active( 'container' ) ) {
627	$container_config = [
628	'container' => Plugin::$instance->elements_manager->get_element_types( 'container' )->get_config(),
629	];
630	}
631
632	$config['elements'] = $this->get_elements_raw_data( null, true );
633	$config['widgets'] = $container_config + Plugin::$instance->widgets_manager->get_widget_types_config();
634	}
635
636	$additional_config = [];
637
638	/**
639	* Additional document configuration.
640	*
641	* Filters the document configuration by adding additional configuration.
642	* External developers can use this hook to add custom configuration in
643	* addition to Elementor's initial configuration.
644	*
645	* Use the $post_id to add custom configuration for different pages.
646	*
647	* @param array $additional_config The additional document configuration.
648	* @param int $post_id The post ID of the document.
649	*/
650	$additional_config = apply_filters( 'elementor/document/config', $additional_config, $this->get_main_id() );
651
652	if ( ! empty( $additional_config ) ) {
653	$config = array_replace_recursive( $config, $additional_config );
654	}
655
656	return $config;
657	}
658
659	/**
660	* @since 3.1.0
661	* @access protected
662	*/
663	protected function register_controls() {
664	$this->register_document_controls();
665
666	/**
667	* Register document controls.
668	*
669	* Fires after Elementor registers the document controls.
670	*
671	* External developers can use this hook to add new controls to the document.
672	*
673	* @since 2.0.0
674	*
675	* @param Document $this The document instance.
676	*/
677	do_action( 'elementor/documents/register_controls', $this );
678	}
679
680	/**
681	* @since 2.0.0
682	* @access public
683	*
684	* @param $data
685	*
686	* @return bool
687	*/
688	public function save( $data ) {
689	/**
690	* Document save data.
691	*
692	* Filter the document data before saving process starts.
693	*
694	* External developers can use this hook to change the data before
695	* saving it to the database.
696	*
697	* @since 3.3.0
698	*
699	* @param array $data The document data.
700	* @param \Elementor\Core\Base\Document $this The document instance.
701	*/
702	$data = apply_filters( 'elementor/document/save/data', $data, $this );
703
704	$this->add_handle_revisions_changed_filter();
705
706	if ( ! $this->is_editable_by_current_user() ) {
707	return false;
708	}
709
710	$this->set_is_saving( true );
711
712	/**
713	* Before document save.
714	*
715	* Fires when document save starts on Elementor.
716	*
717	* @since 2.5.12
718	*
719	* @param \Elementor\Core\Base\Document $this The current document.
720	* @param $data.
721	*/
722	do_action( 'elementor/document/before_save', $this, $data );
723
724	if ( ! current_user_can( 'unfiltered_html' ) ) {
725	$data = wp_kses_post_deep( $data );
726	}
727
728	if ( ! empty( $data['settings'] ) ) {
729	if ( isset( $data['settings']['post_status'] ) && self::STATUS_AUTOSAVE === $data['settings']['post_status'] ) {
730	if ( ! defined( 'DOING_AUTOSAVE' ) ) {
731	define( 'DOING_AUTOSAVE', true );
732	}
733	}
734
735	$this->save_settings( $data['settings'] );
736
737	$this->refresh_post();
738	}
739
740	// Don't check is_empty, because an empty array should be saved.
741	if ( isset( $data['elements'] ) && is_array( $data['elements'] ) ) {
742	$this->save_elements( $data['elements'] );
743	}
744
745	$this->save_template_type();
746
747	$this->save_version();
748
749	// Remove Post CSS
750	$post_css = Post_CSS::create( $this->post->ID );
751
752	$post_css->delete();
753
754	/**
755	* After document save.
756	*
757	* Fires when document save is complete.
758	*
759	* @since 2.5.12
760	*
761	* @param \Elementor\Core\Base\Document $this The current document.
762	* @param $data.
763	*/
764	do_action( 'elementor/document/after_save', $this, $data );
765
766	$this->set_is_saving( false );
767
768	$this->remove_handle_revisions_changed_filter();
769
770	return true;
771	}
772
773	public function refresh_post() {
774	$this->post = get_post( $this->post->ID );
775	}
776
777	/**
778	* @param array $new_settings
779	*
780	* @return static
781	*/
782	public function update_settings( array $new_settings ) {
783	$document_settings = $this->get_meta( PageManager::META_KEY );
784
785	if ( ! $document_settings ) {
786	$document_settings = [];
787	}
788
789	$this->save_settings(
790	array_replace_recursive( $document_settings, $new_settings )
791	);
792
793	return $this;
794	}
795
796	/**
797	* Is built with Elementor.
798	*
799	* Check whether the post was built with Elementor.
800	*
801	* @since 2.0.0
802	* @access public
803	*
804	* @return bool Whether the post was built with Elementor.
805	*/
806	public function is_built_with_elementor() {
807	return ! ! $this->get_meta( self::BUILT_WITH_ELEMENTOR_META_KEY );
808	}
809
810	/**
811	* Mark the post as "built with elementor" or not.
812	*
813	* @param bool $is_built_with_elementor
814	*
815	* @return $this
816	*/
817	public function set_is_built_with_elementor( $is_built_with_elementor ) {
818	if ( $is_built_with_elementor ) {
819	// Use the string `builder` and not a boolean for rollback compatibility
820	$this->update_meta( self::BUILT_WITH_ELEMENTOR_META_KEY, 'builder' );
821	} else {
822	$this->delete_meta( self::BUILT_WITH_ELEMENTOR_META_KEY );
823	}
824
825	return $this;
826	}
827
828	/**
829	* @since 2.0.0
830	* @access public
831	* @static
832	*
833	* @return mixed
834	*/
835	public function get_edit_url() {
836	$url = add_query_arg(
837	[
838	'post' => $this->get_main_id(),
839	'action' => 'elementor',
840	],
841	admin_url( 'post.php' )
842	);
843
844	/**
845	* Document edit url.
846	*
847	* Filters the document edit url.
848	*
849	* @since 2.0.0
850	*
851	* @param string $url The edit url.
852	* @param Document $this The document instance.
853	*/
854	$url = apply_filters( 'elementor/document/urls/edit', $url, $this );
855
856	return $url;
857	}
858
859	/**
860	* @since 2.0.0
861	* @access public
862	*/
863	public function get_preview_url() {
864	/**
865	* Use a static var - to avoid change the `ver` parameter on every call.
866	*/
867	static $url;
868
869	if ( empty( $url ) ) {
870
871	add_filter( 'pre_option_permalink_structure', '__return_empty_string' );
872
873	$url = set_url_scheme( add_query_arg( [
874	'elementor-preview' => $this->get_main_id(),
875	'ver' => time(),
876	], $this->get_permalink() ) );
877
878	remove_filter( 'pre_option_permalink_structure', '__return_empty_string' );
879
880	/**
881	* Document preview URL.
882	*
883	* Filters the document preview URL.
884	*
885	* @since 2.0.0
886	*
887	* @param string $url The preview URL.
888	* @param Document $this The document instance.
889	*/
890	$url = apply_filters( 'elementor/document/urls/preview', $url, $this );
891	}
892
893	return $url;
894	}
895
896	/**
897	* @since 2.0.0
898	* @access public
899	*
900	* @param string $key
901	*
902	* @return array
903	*/
904	public function get_json_meta( $key ) {
905	$meta = get_post_meta( $this->post->ID, $key, true );
906
907	if ( is_string( $meta ) && ! empty( $meta ) ) {
908	$meta = json_decode( $meta, true );
909	}
910
911	if ( empty( $meta ) ) {
912	$meta = [];
913	}
914
915	return $meta;
916	}
917
918	public function update_json_meta( $key, $value ) {
919	$this->update_meta(
920	$key,
921	// `wp_slash` in order to avoid the unslashing during the `update_post_meta`
922	wp_slash( wp_json_encode( $value ) )
923	);
924	}
925
926	/**
927	* @since 2.0.0
928	* @access public
929	*
930	* @param null $data
931	* @param bool $with_html_content
932	*
933	* @return array
934	*/
935	public function get_elements_raw_data( $data = null, $with_html_content = false ) {
936	if ( ! static::get_property( 'has_elements' ) ) {
937	return [];
938	}
939
940	if ( is_null( $data ) ) {
941	$data = $this->get_elements_data();
942	}
943
944	// Change the current documents, so widgets can use `documents->get_current` and other post data
945	Plugin::$instance->documents->switch_to_document( $this );
946
947	$editor_data = [];
948
949	foreach ( $data as $element_data ) {
950	if ( ! is_array( $element_data ) ) {
951	throw new \Exception( 'Invalid data: ' . wp_json_encode( [
952	'data' => $data,
953	'element' => $element_data,
954	] ) );
955	}
956
957	$element = Plugin::$instance->elements_manager->create_element_instance( $element_data );
958
959	if ( ! $element ) {
960	continue;
961	}
962
963	if ( $this->is_saving ) {
964	$element_data = $element->get_data_for_save();
965	} else {
966	$element_data = $element->get_raw_data( $with_html_content );
967	}
968
969	$editor_data[] = $element_data;
970	} // End foreach().
971
972	Plugin::$instance->documents->restore_document();
973
974	return $editor_data;
975	}
976
977	/**
978	* @since 2.0.0
979	* @access public
980	*
981	* @param string $status
982	*
983	* @return array
984	*/
985	public function get_elements_data( $status = self::STATUS_PUBLISH ) {
986	$elements = $this->get_json_meta( '_elementor_data' );
987
988	if ( self::STATUS_DRAFT === $status ) {
989	$autosave = $this->get_newer_autosave();
990
991	if ( is_object( $autosave ) ) {
992	$autosave_elements = Plugin::$instance->documents
993	->get( $autosave->get_post()->ID )
994	->get_json_meta( '_elementor_data' );
995	}
996	}
997
998	if ( Plugin::$instance->editor->is_edit_mode() ) {
999	if ( empty( $elements ) && empty( $autosave_elements ) ) {
1000	// Convert to Elementor.
1001	$elements = $this->convert_to_elementor();
1002	if ( $this->is_autosave() ) {
1003	Plugin::$instance->db->copy_elementor_meta( $this->post->post_parent, $this->post->ID );
1004	}
1005	}
1006	}
1007
1008	if ( ! empty( $autosave_elements ) ) {
1009	$elements = $autosave_elements;
1010	}
1011
1012	return $elements;
1013	}
1014
1015	/**
1016	* Get document setting from DB.
1017	*
1018	* @return array
1019	*/
1020	public function get_db_document_settings() {
1021	return $this->get_meta( static::PAGE_META_KEY );
1022	}
1023
1024	/**
1025	* @since 2.3.0
1026	* @access public
1027	*/
1028	public function convert_to_elementor() {
1029	$this->save( [] );
1030
1031	if ( empty( $this->post->post_content ) ) {
1032	return [];
1033	}
1034
1035	// Check if it's only a shortcode.
1036	preg_match_all( '/' . get_shortcode_regex() . '/', $this->post->post_content, $matches, PREG_SET_ORDER );
1037	if ( ! empty( $matches ) ) {
1038	foreach ( $matches as $shortcode ) {
1039	if ( trim( $this->post->post_content ) === $shortcode[0] ) {
1040	$widget_type = Plugin::$instance->widgets_manager->get_widget_types( 'shortcode' );
1041	$settings = [
1042	'shortcode' => $this->post->post_content,
1043	];
1044	break;
1045	}
1046	}
1047	}
1048
1049	if ( empty( $widget_type ) ) {
1050	$widget_type = Plugin::$instance->widgets_manager->get_widget_types( 'text-editor' );
1051	$settings = [
1052	'editor' => $this->post->post_content,
1053	];
1054	}
1055
1056	// TODO: Better coding to start template for editor
1057	return [
1058	[
1059	'id' => Utils::generate_random_string(),
1060	'elType' => 'section',
1061	'elements' => [
1062	[
1063	'id' => Utils::generate_random_string(),
1064	'elType' => 'column',
1065	'elements' => [
1066	[
1067	'id' => Utils::generate_random_string(),
1068	'elType' => $widget_type::get_type(),
1069	'widgetType' => $widget_type->get_name(),
1070	'settings' => $settings,
1071	],
1072	],
1073	],
1074	],
1075	],
1076	];
1077	}
1078
1079	/**
1080	* @since 2.1.3
1081	* @access public
1082	*/
1083	public function print_elements_with_wrapper( $elements_data = null ) {
1084	if ( ! $elements_data ) {
1085	$elements_data = $this->get_elements_data();
1086	}
1087
1088	$is_dom_optimization_active = Plugin::$instance->experiments->is_feature_active( 'e_dom_optimization' );
1089	?>
1090	<div <?php Utils::print_html_attributes( $this->get_container_attributes() ); ?>>
1091	<?php if ( ! $is_dom_optimization_active ) : ?>
1092	<div class="elementor-inner">
1093	<div class="elementor-section-wrap">
1094	<?php endif; ?>
1095	<?php $this->print_elements( $elements_data ); ?>
1096	<?php if ( ! $is_dom_optimization_active ) : ?>
1097	</div>
1098	</div>
1099	<?php endif; ?>
1100	</div>
1101	<?php
1102	}
1103
1104	/**
1105	* @since 2.0.0
1106	* @access public
1107	*/
1108	public function get_css_wrapper_selector() {
1109	return '';
1110	}
1111
1112	/**
1113	* @since 2.0.0
1114	* @access public
1115	*/
1116	public function get_panel_page_settings() {
1117	return [
1118	/* translators: %s: Document title. */
1119	'title' => sprintf( esc_html__( '%s Settings', 'elementor' ), static::get_title() ),
1120	];
1121	}
1122
1123	/**
1124	* @since 2.0.0
1125	* @access public
1126	*/
1127	public function get_post() {
1128	return $this->post;
1129	}
1130
1131	/**
1132	* @since 2.0.0
1133	* @access public
1134	*/
1135	public function get_permalink() {
1136	return get_permalink( $this->get_main_id() );
1137	}
1138
1139	/**
1140	* @since 2.0.8
1141	* @access public
1142	*/
1143	public function get_content( $with_css = false ) {
1144	return Plugin::$instance->frontend->get_builder_content( $this->post->ID, $with_css );
1145	}
1146
1147	/**
1148	* @since 2.0.0
1149	* @access public
1150	*/
1151	public function delete() {
1152	if ( 'revision' === $this->post->post_type ) {
1153	$deleted = wp_delete_post_revision( $this->post );
1154	} else {
1155	$deleted = wp_delete_post( $this->post->ID );
1156	}
1157
1158	return $deleted && ! is_wp_error( $deleted );
1159	}
1160
1161	public function force_delete() {
1162	$deleted = wp_delete_post( $this->post->ID, true );
1163
1164	return $deleted && ! is_wp_error( $deleted );
1165	}
1166
1167	/**
1168	* On import update dynamic content (e.g. post and term IDs).
1169	*
1170	* @since 3.8.0
1171	*
1172	* @param array $config The config of the passed element.
1173	* @param array $data The data that requires updating/replacement when imported.
1174	* @param array\|null $controls The available controls.
1175	*
1176	* @return array Element data.
1177	*/
1178	public static function on_import_update_dynamic_content( array $config, array $data, $controls = null ) : array {
1179	foreach ( $config as &$element_config ) {
1180	$element_instance = Plugin::$instance->elements_manager->create_element_instance( $element_config );
1181
1182	if ( is_null( $element_instance ) ) {
1183	continue;
1184	}
1185
1186	if ( $element_instance->has_own_method( 'on_import_replace_dynamic_content' ) ) {
1187	// TODO: Remove this check in the future.
1188	$element_config = $element_instance::on_import_replace_dynamic_content( $element_config, $data['post_ids'] );
1189	} else {
1190	$element_config = $element_instance::on_import_update_dynamic_content( $element_config, $data, $element_instance->get_controls() );
1191	}
1192
1193	$element_config['elements'] = static::on_import_update_dynamic_content( $element_config['elements'], $data );
1194	}
1195
1196	return $config;
1197	}
1198
1199	/**
1200	* Save editor elements.
1201	*
1202	* Save data from the editor to the database.
1203	*
1204	* @since 2.0.0
1205	* @access protected
1206	*
1207	* @param array $elements
1208	*/
1209	protected function save_elements( $elements ) {
1210	$editor_data = $this->get_elements_raw_data( $elements );
1211
1212	// We need the `wp_slash` in order to avoid the unslashing during the `update_post_meta`
1213	$json_value = wp_slash( wp_json_encode( $editor_data ) );
1214
1215	// Don't use `update_post_meta` that can't handle `revision` post type
1216	$is_meta_updated = update_metadata( 'post', $this->post->ID, '_elementor_data', $json_value );
1217
1218	/**
1219	* Before saving data.
1220	*
1221	* Fires before Elementor saves data to the database.
1222	*
1223	* @since 1.0.0
1224	*
1225	* @param string $status Post status.
1226	* @param int\|bool $is_meta_updated Meta ID if the key didn't exist, true on successful update, false on failure.
1227	*/
1228	do_action( 'elementor/db/before_save', $this->post->post_status, $is_meta_updated );
1229
1230	Plugin::$instance->db->save_plain_text( $this->post->ID );
1231
1232	$elements_iteration_actions = $this->get_elements_iteration_actions();
1233
1234	if ( $elements_iteration_actions ) {
1235	$this->iterate_elements( $elements, $elements_iteration_actions, 'save' );
1236	}
1237
1238	/**
1239	* After saving data.
1240	*
1241	* Fires after Elementor saves data to the database.
1242	*
1243	* @since 1.0.0
1244	*
1245	* @param int $post_id The ID of the post.
1246	* @param array $editor_data Sanitize posted data.
1247	*/
1248	do_action( 'elementor/editor/after_save', $this->post->ID, $editor_data );
1249	}
1250
1251	/**
1252	* @since 2.0.0
1253	* @access public
1254	*
1255	* @param int $user_id Optional. User ID. Default value is `0`.
1256	*
1257	* @return bool\|int
1258	*/
1259	public function get_autosave_id( $user_id = 0 ) {
1260	if ( ! $user_id ) {
1261	$user_id = get_current_user_id();
1262	}
1263
1264	$autosave = Utils::get_post_autosave( $this->post->ID, $user_id );
1265	if ( $autosave ) {
1266	return $autosave->ID;
1267	}
1268
1269	return false;
1270	}
1271
1272	public function save_version() {
1273	if ( ! defined( 'IS_ELEMENTOR_UPGRADE' ) ) {
1274	// Save per revision.
1275	$this->update_meta( '_elementor_version', ELEMENTOR_VERSION );
1276
1277	/**
1278	* Document version save.
1279	*
1280	* Fires when document version is saved on Elementor.
1281	* Will not fire during Elementor Upgrade.
1282	*
1283	* @since 2.5.12
1284	*
1285	* @param \Elementor\Core\Base\Document $this The current document.
1286	*
1287	*/
1288	do_action( 'elementor/document/save_version', $this );
1289	}
1290	}
1291
1292	/**
1293	* @since 2.3.0
1294	* @access public
1295	*/
1296	public function save_template_type() {
1297	return $this->update_main_meta( self::TYPE_META_KEY, $this->get_name() );
1298	}
1299
1300	/**
1301	* @since 2.3.0
1302	* @access public
1303	*/
1304	public function get_template_type() {
1305	return $this->get_main_meta( self::TYPE_META_KEY );
1306	}
1307
1308	/**
1309	* @since 2.0.0
1310	* @access public
1311	*
1312	* @param string $key Meta data key.
1313	*
1314	* @return mixed
1315	*/
1316	public function get_main_meta( $key ) {
1317	return get_post_meta( $this->get_main_id(), $key, true );
1318	}
1319
1320	/**
1321	* @since 2.0.4
1322	* @access public
1323	*
1324	* @param string $key Meta data key.
1325	* @param string $value Meta data value.
1326	*
1327	* @return bool\|int
1328	*/
1329	public function update_main_meta( $key, $value ) {
1330	return update_post_meta( $this->get_main_id(), $key, $value );
1331	}
1332
1333	/**
1334	* @since 2.0.4
1335	* @access public
1336	*
1337	* @param string $key Meta data key.
1338	* @param string $value Optional. Meta data value. Default is an empty string.
1339	*
1340	* @return bool
1341	*/
1342	public function delete_main_meta( $key, $value = '' ) {
1343	return delete_post_meta( $this->get_main_id(), $key, $value );
1344	}
1345
1346	/**
1347	* @since 2.0.0
1348	* @access public
1349	*
1350	* @param string $key Meta data key.
1351	*
1352	* @return mixed
1353	*/
1354	public function get_meta( $key ) {
1355	return get_post_meta( $this->post->ID, $key, true );
1356	}
1357
1358	/**
1359	* @since 2.0.0
1360	* @access public
1361	*
1362	* @param string $key Meta data key.
1363	* @param mixed $value Meta data value.
1364	*
1365	* @return bool\|int
1366	*/
1367	public function update_meta( $key, $value ) {
1368	// Use `update_metadata` in order to work also with revisions.
1369	return update_metadata( 'post', $this->post->ID, $key, $value );
1370	}
1371
1372	/**
1373	* @since 2.0.3
1374	* @access public
1375	*
1376	* @param string $key Meta data key.
1377	* @param string $value Meta data value.
1378	*
1379	* @return bool
1380	*/
1381	public function delete_meta( $key, $value = '' ) {
1382	// Use `delete_metadata` in order to work also with revisions.
1383	return delete_metadata( 'post', $this->post->ID, $key, $value );
1384	}
1385
1386	/**
1387	* @since 2.0.0
1388	* @access public
1389	*/
1390	public function get_last_edited() {
1391	$post = $this->post;
1392	$autosave_post = $this->get_autosave();
1393
1394	if ( $autosave_post ) {
1395	$post = $autosave_post->get_post();
1396	}
1397
1398	$date = date_i18n( _x( 'M j, H:i', 'revision date format', 'elementor' ), strtotime( $post->post_modified ) );
1399	$display_name = get_the_author_meta( 'display_name', $post->post_author );
1400
1401	if ( $autosave_post \|\| 'revision' === $post->post_type ) {
1402	/* translators: 1: Saving date, 2: Author display name. */
1403	$last_edited = sprintf( esc_html__( 'Draft saved on %1$s by %2$s', 'elementor' ), '<time>' . $date . '</time>', $display_name );
1404	} else {
1405	/* translators: 1: Editing date, 2: Author display name. */
1406	$last_edited = sprintf( esc_html__( 'Last edited on %1$s by %2$s', 'elementor' ), '<time>' . $date . '</time>', $display_name );
1407	}
1408
1409	return $last_edited;
1410	}
1411
1412
1413	/**
1414	* @return bool
1415	*/
1416	public function is_saving() {
1417	return $this->is_saving;
1418	}
1419
1420	/**
1421	* @param $is_saving
1422	*
1423	* @return $this
1424	*/
1425	public function set_is_saving( $is_saving ) {
1426	$this->is_saving = $is_saving;
1427
1428	return $this;
1429	}
1430
1431	/**
1432	* @since 2.0.0
1433	* @access public
1434	*
1435	* @param array $data
1436	*
1437	* @throws \Exception If the post does not exist.
1438	*/
1439	public function __construct( array $data = [] ) {
1440	if ( $data ) {
1441	if ( empty( $data['post_id'] ) ) {
1442	$this->post = new \WP_Post( (object) [] );
1443	} else {
1444	$this->post = get_post( $data['post_id'] );
1445
1446	if ( ! $this->post ) {
1447	throw new \Exception( sprintf( 'Post ID #%s does not exist.', $data['post_id'] ), Exceptions::NOT_FOUND );
1448	}
1449	}
1450
1451	// Each Control_Stack is based on a unique ID.
1452	$data['id'] = $data['post_id'];
1453
1454	if ( ! isset( $data['settings'] ) ) {
1455	$data['settings'] = [];
1456	}
1457
1458	$saved_settings = get_post_meta( $this->post->ID, '_elementor_page_settings', true );
1459	if ( ! empty( $saved_settings ) && is_array( $saved_settings ) ) {
1460	$data['settings'] += $saved_settings;
1461	}
1462	}
1463
1464	parent::__construct( $data );
1465	}
1466
1467	/*
1468	* Get Export Data
1469	*
1470	* Filters a document's data on export
1471	*
1472	* @since 3.2.0
1473	* @access public
1474	*
1475	* @return array The data to export
1476	*/
1477	public function get_export_data() {
1478	$content = Plugin::$instance->db->iterate_data( $this->get_elements_data(), function( $element_data ) {
1479	$element_data['id'] = Utils::generate_random_string();
1480
1481	$element = Plugin::$instance->elements_manager->create_element_instance( $element_data );
1482
1483	// If the widget/element isn't exist, like a plugin that creates a widget but deactivated
1484	if ( ! $element ) {
1485	return null;
1486	}
1487
1488	return $this->process_element_import_export( $element, 'on_export' );
1489	} );
1490
1491	return [
1492	'content' => $content,
1493	'settings' => $this->get_data( 'settings' ),
1494	'metadata' => $this->get_export_metadata(),
1495	];
1496	}
1497
1498	public function get_export_summary() {
1499	return [
1500	'title' => $this->post->post_title,
1501	'doc_type' => $this->get_name(),
1502	'thumbnail' => get_the_post_thumbnail_url( $this->post ),
1503	];
1504	}
1505
1506	/*
1507	* Get Import Data
1508	*
1509	* Filters a document's data on import
1510	*
1511	* @since 3.2.0
1512	* @access public
1513	*
1514	* @return array The data to import
1515	*/
1516	public function get_import_data( array $data ) {
1517	$data['content'] = Plugin::$instance->db->iterate_data( $data['content'], function( $element_data ) {
1518	$element = Plugin::$instance->elements_manager->create_element_instance( $element_data );
1519
1520	// If the widget/element isn't exist, like a plugin that creates a widget but deactivated
1521	if ( ! $element ) {
1522	return null;
1523	}
1524
1525	return $this->process_element_import_export( $element, 'on_import' );
1526	} );
1527
1528	if ( ! empty( $data['settings'] ) ) {
1529	$template_model = new Page_Model( [
1530	'id' => 0,
1531	'settings' => $data['settings'],
1532	] );
1533
1534	$page_data = $this->process_element_import_export( $template_model, 'on_import' );
1535
1536	$data['settings'] = $page_data['settings'];
1537	}
1538
1539	return $data;
1540	}
1541
1542	/**
1543	* Import
1544	*
1545	* Allows to import an external data to a document
1546	*
1547	* @since 3.2.0
1548	* @access public
1549	*
1550	* @param array $data
1551	*/
1552	public function import( array $data ) {
1553	$data = $this->get_import_data( $data );
1554
1555	$this->save( [
1556	'elements' => $data['content'],
1557	'settings' => $data['settings'],
1558	] );
1559
1560	if ( $data['import_settings']['thumbnail'] ) {
1561	$attachment = Plugin::$instance->templates_manager->get_import_images_instance()->import( [ 'url' => $data['import_settings']['thumbnail'] ] );
1562
1563	set_post_thumbnail( $this->get_main_post(), $attachment['id'] );
1564	}
1565
1566	if ( ! empty( $data['metadata'] ) ) {
1567	foreach ( $data['metadata'] as $key => $value ) {
1568	$this->update_meta( $key, $value );
1569	}
1570	}
1571	}
1572
1573	public function process_element_import_export( Controls_Stack $element, $method, $element_data = null ) {
1574	if ( null === $element_data ) {
1575	$element_data = $element->get_data();
1576	}
1577
1578	if ( method_exists( $element, $method ) ) {
1579	// TODO: Use the internal element data without parameters.
1580	$element_data = $element->{$method}( $element_data );
1581	}
1582
1583	foreach ( $element->get_controls() as $control ) {
1584	$control_class = Plugin::$instance->controls_manager->get_control( $control['type'] );
1585
1586	// If the control isn't exist, like a plugin that creates the control but deactivated.
1587	if ( ! $control_class ) {
1588	return $element_data;
1589	}
1590
1591	// Do not add default value to the final settings, if there is no value at the
1592	// data before the methods `on_import` or `on_export` called.
1593	$has_value = isset( $element_data['settings'][ $control['name'] ] );
1594
1595	if ( $has_value && method_exists( $control_class, $method ) ) {
1596	$element_data['settings'][ $control['name'] ] = $control_class->{$method}(
1597	$element_data['settings'][ $control['name'] ],
1598	$control
1599	);
1600	}
1601
1602	// On Export, check if the control has an argument 'export' => false.
1603	if ( 'on_export' === $method && isset( $control['export'] ) && false === $control['export'] ) {
1604	unset( $element_data['settings'][ $control['name'] ] );
1605	}
1606	}
1607
1608	return $element_data;
1609	}
1610
1611	protected function get_export_metadata() {
1612	$metadata = get_post_meta( $this->get_main_id() );
1613
1614	foreach ( $metadata as $meta_key => $meta_value ) {
1615	if ( is_protected_meta( $meta_key, 'post' ) ) {
1616	unset( $metadata[ $meta_key ] );
1617
1618	continue;
1619	}
1620
1621	$metadata[ $meta_key ] = $meta_value[0];
1622	}
1623
1624	return $metadata;
1625	}
1626
1627	protected function get_remote_library_config() {
1628	$config = [
1629	'type' => 'block',
1630	'default_route' => 'templates/blocks',
1631	'category' => $this->get_name(),
1632	'autoImportSettings' => false,
1633	];
1634
1635	return $config;
1636	}
1637
1638	/**
1639	* @since 2.0.4
1640	* @access protected
1641	*
1642	* @param $settings
1643	*/
1644	protected function save_settings( $settings ) {
1645	$page_settings_manager = SettingsManager::get_settings_managers( 'page' );
1646	$page_settings_manager->ajax_before_save_settings( $settings, $this->post->ID );
1647	$page_settings_manager->save_settings( $settings, $this->post->ID );
1648	}
1649
1650	/**
1651	* @since 2.1.3
1652	* @access protected
1653	*/
1654	protected function print_elements( $elements_data ) {
1655	// Collect all data updaters that should be updated on runtime.
1656	$runtime_elements_iteration_actions = $this->get_runtime_elements_iteration_actions();
1657
1658	if ( $runtime_elements_iteration_actions ) {
1659	$this->iterate_elements( $elements_data, $runtime_elements_iteration_actions, 'render' );
1660	}
1661
1662	foreach ( $elements_data as $element_data ) {
1663	$element = Plugin::$instance->elements_manager->create_element_instance( $element_data );
1664
1665	if ( ! $element ) {
1666	continue;
1667	}
1668
1669	$element->print_element();
1670	}
1671	}
1672
1673	protected function register_document_controls() {
1674	$this->start_controls_section(
1675	'document_settings',
1676	[
1677	'label' => esc_html__( 'General Settings', 'elementor' ),
1678	'tab' => Controls_Manager::TAB_SETTINGS,
1679	]
1680	);
1681
1682	$this->add_control(
1683	'post_title',
1684	[
1685	'label' => esc_html__( 'Title', 'elementor' ),
1686	'type' => Controls_Manager::TEXT,
1687	'default' => $this->post->post_title,
1688	'label_block' => true,
1689	]
1690	);
1691
1692	$post_type_object = get_post_type_object( $this->post->post_type );
1693
1694	$can_publish = $post_type_object && current_user_can( $post_type_object->cap->publish_posts );
1695	$is_published = self::STATUS_PUBLISH === $this->post->post_status \|\| self::STATUS_PRIVATE === $this->post->post_status;
1696
1697	if ( $is_published \|\| $can_publish \|\| ! Plugin::$instance->editor->is_edit_mode() ) {
1698
1699	$statuses = $this->get_post_statuses();
1700	if ( 'future' === $this->get_main_post()->post_status ) {
1701	$statuses['future'] = esc_html__( 'Future', 'elementor' );
1702	}
1703
1704	$this->add_control(
1705	'post_status',
1706	[
1707	'label' => esc_html__( 'Status', 'elementor' ),
1708	'type' => Controls_Manager::SELECT,
1709	'default' => $this->get_main_post()->post_status,
1710	'options' => $statuses,
1711	]
1712	);
1713	}
1714
1715	$this->end_controls_section();
1716	}
1717
1718	protected function get_post_statuses() {
1719	return get_post_statuses();
1720	}
1721
1722	protected function get_have_a_look_url() {
1723	return $this->get_permalink();
1724	}
1725
1726	public function handle_revisions_changed( $post_has_changed, $last_revision, $post ) {
1727	// In case default, didn't determine the changes.
1728	if ( ! $post_has_changed ) {
1729	$last_revision_id = $last_revision->ID;
1730	$last_revision_document = Plugin::instance()->documents->get( $last_revision_id );
1731	$post_document = Plugin::instance()->documents->get( $post->ID );
1732
1733	$last_revision_settings = $last_revision_document->get_settings();
1734	$post_settings = $post_document->get_settings();
1735
1736	// TODO: Its better to add crc32 signature for each revision and then only compare one part of the checksum.
1737	$post_has_changed = $last_revision_settings !== $post_settings;
1738	}
1739
1740	return $post_has_changed;
1741	}
1742
1743	private function add_handle_revisions_changed_filter() {
1744	add_filter( 'wp_save_post_revision_post_has_changed', [ $this, 'handle_revisions_changed' ], 10, 3 );
1745	}
1746
1747	private function remove_handle_revisions_changed_filter() {
1748	remove_filter( 'wp_save_post_revision_post_has_changed', [ $this, 'handle_revisions_changed' ] );
1749	}
1750
1751	private function get_runtime_elements_iteration_actions() {
1752	$runtime_elements_iteration_actions = [];
1753
1754	$elements_iteration_actions = $this->get_elements_iteration_actions();
1755
1756	foreach ( $elements_iteration_actions as $elements_iteration_action ) {
1757	if ( $elements_iteration_action->is_action_needed() ) {
1758	$runtime_elements_iteration_actions[] = $elements_iteration_action;
1759	}
1760	}
1761
1762	return $runtime_elements_iteration_actions;
1763	}
1764
1765	private function iterate_elements( $elements, $elements_iteration_actions, $mode ) {
1766	$unique_page_elements = [];
1767
1768	foreach ( $elements_iteration_actions as $elements_iteration_action ) {
1769	$elements_iteration_action->set_mode( $mode );
1770	}
1771
1772	Plugin::$instance->db->iterate_data( $elements, function( array $element_data ) use ( &$unique_page_elements, $elements_iteration_actions ) {
1773	$element_type = 'widget' === $element_data['elType'] ? $element_data['widgetType'] : $element_data['elType'];
1774
1775	$element = Plugin::$instance->elements_manager->create_element_instance( $element_data );
1776
1777	if ( $element ) {
1778	if ( ! in_array( $element_type, $unique_page_elements, true ) ) {
1779	$unique_page_elements[] = $element_type;
1780
1781	foreach ( $elements_iteration_actions as $elements_iteration_action ) {
1782	$elements_iteration_action->unique_element_action( $element );
1783	}
1784	}
1785
1786	foreach ( $elements_iteration_actions as $elements_iteration_action ) {
1787	$elements_iteration_action->element_action( $element );
1788	}
1789	}
1790
1791	return $element_data;
1792	} );
1793
1794	foreach ( $elements_iteration_actions as $elements_iteration_action ) {
1795	$elements_iteration_action->after_elements_iteration();
1796	}
1797	}
1798
1799	private function get_elements_iteration_actions() {
1800	if ( ! $this->elements_iteration_actions ) {
1801	$this->elements_iteration_actions[] = new Assets_Iteration_Action( $this );
1802	}
1803
1804	return $this->elements_iteration_actions;
1805	}
1806	}
1807