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<?php

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/**

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* Gutenberg compatibility for Themify Builder

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* @package Themify

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* @since 3.5.4

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if (!class_exists('Themify_Builder_Gutenberg',false)) :

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final class Themify_Builder_Gutenberg {

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private const BLOCK_PATTERNS = '';

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public static function init():void {

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add_action('wp_loaded', array(__CLASS__, 'load'));

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add_theme_support('align-wide');

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}

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public static function load():void {

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/* add template for all post types that support the editor */

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$post_types = Themify_Builder::builder_post_types_support();

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foreach ($post_types as $type) {

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add_filter('rest_prepare_' . $type, array(__CLASS__, 'enable_block_existing_content'), 10, 3);

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$post_type_object = get_post_type_object($type);

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$post_type_object->template = array(

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array('themify-builder/canvas')

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);

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}

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add_action('rest_api_init', array(__CLASS__, 'register_builder_content_field'));

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if (is_admin()) {

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add_action('current_screen', array(__CLASS__, 'admin_init'));

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} else {

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self::register_block();

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}

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}

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public static function admin_init():void {

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if (Themify_Builder_Model::is_gutenberg_editor() && function_exists('register_block_type')) {

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self::register_block();

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add_action('enqueue_block_editor_assets', array(__CLASS__, 'enqueue_editor_scripts'));

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add_filter('admin_body_class', array(__CLASS__, 'admin_body_class'));

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}

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}

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private static function register_block():void {

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wp_register_style(

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'builder-styles',

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THEMIFY_BUILDER_URI . '/css/themify-builder-style.css',

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null,

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THEMIFY_VERSION

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);

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register_block_type('themify-builder/canvas', array(

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'render_callback' => array(__CLASS__, 'render_builder_block'),

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'editor_style' => 'themify-builder-style',

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'style' => 'themify-builder-style'

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));

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}

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public static function enqueue_editor_scripts():void {

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add_filter('themify_defer_js_exclude', array(__CLASS__, 'exclude_defer_script'));

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themify_enque_script('themify-builder-gutenberg-block', THEMIFY_BUILDER_URI . '/js/editor/backend/themify-builder-gutenberg.js', THEMIFY_VERSION, array('wp-blocks', 'wp-i18n', 'wp-element', 'backbone'));

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}

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public static function render_builder_block($attributes):string {

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return self::BLOCK_PATTERNS; // just return custom block tag, let builder the_content filter to render builder output

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}

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public static function exclude_defer_script(array $handles):array {

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return array_merge($handles, array('themify-builder-gutenberg-block'));

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}

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/**

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* Enable builder block on existing content data.

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* @param object $data

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* @param object $post

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* @param object $context

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* @return object

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public static function enable_block_existing_content($data, $post, $context) {

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if ('edit' === $context['context'] && isset($data->data['content']['raw'])) {

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$content = &$data->data['content']['raw'];

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$builder_placeholder = '';

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if ( Themify_Builder_Model::is_gutenberg_active() && self::has_builder_block( $content ) ) {

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$content = ThemifyBuilder_Data_Manager::update_static_content_string( '', $content ); // remove static content tag

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/* convert old Gutenberg placeholder */

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if ( str_contains( $content, self::BLOCK_PATTERNS ) ) {

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$content = str_replace( self::BLOCK_PATTERNS, $builder_placeholder, $content );

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}

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} elseif ( ThemifyBuilder_Data_Manager::has_static_content( $content ) ) {

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$content = ThemifyBuilder_Data_Manager::update_static_content_string( $builder_placeholder, $content );

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} else {

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$content .= "\n\n" . $builder_placeholder;

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}

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$builder_data = ThemifyBuilder_Data_Manager::get_data( $post->ID );

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if ( ! empty( $builder_data ) ) {

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$plain_text = ThemifyBuilder_Data_Manager::_get_all_builder_text_content( $builder_data );

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$plain_text = ThemifyBuilder_Data_Manager::add_static_content_wrapper( $plain_text );

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$content = preg_replace_callback( '/()[\s\S]*?()/', function( $matches ) use( $plain_text ) {

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return $matches[1] . $plain_text . $matches[2];

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}, $content );

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}

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}

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return $data;

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}

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/**

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* Added body class

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public static function admin_body_class(?string $classes):string {

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$classes .= ' themify-gutenberg-editor';

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$screen=get_current_screen();

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if (!empty($screen) && Themify_Builder_Model::is_builder_disabled_for_post_type( $screen->post_type ) ) {

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$classes .= ' tb_editor_disabled';

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}

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return $classes;

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}

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/**

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* Register builder content meta

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* @access public

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* @return type

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public static function register_builder_content_field():void {

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$post_types = Themify_Builder::builder_post_types_support();

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foreach ($post_types as $type) {

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register_rest_field($type, 'builder_content', array(

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'get_callback' => array(__CLASS__, 'get_post_meta_builder'),

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'schema' => null

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)

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);

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}

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}

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/**

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* Update builder block tag in the string.

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public static function replace_builder_block_tag(string $replace_string, string $content): string {

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if (self::has_builder_block($content)) {

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$content = str_replace(self::BLOCK_PATTERNS, $replace_string, $content);

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$content = ThemifyBuilder_Data_Manager::remove_empty_p($content);

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}

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return $content;

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}

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/**

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* Check if content has builder block

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public static function has_builder_block(string $content):string {

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return has_block( 'themify-builder/canvas', $content );

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}

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/**

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* Get builder content value.

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* @access public

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* @param type $object

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public static function get_post_meta_builder($object):string {

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return ThemifyBuilder_Data_Manager::_get_all_builder_text_content(ThemifyBuilder_Data_Manager::get_data($object['id']));

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}

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}

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Themify_Builder_Gutenberg::init();

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endif;

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