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<?php

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/**

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* Boots Frond End Builder App,

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* @return string Front End Builder wrap if main query, $content otherwise.

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function et_fb_app_boot( $content ) {

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// Instances of React app

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static $instances = 0;

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$is_new_page = isset( $_GET['is_new_page'] ) && '1' === $_GET['is_new_page'];

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$main_query_post = ET_Post_Stack::get_main_post();

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$main_query_post_type = $main_query_post ? $main_query_post->post_type : '';

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if ( ET_Builder_Element::is_theme_builder_layout() && ! et_theme_builder_is_layout_post_type( $main_query_post_type ) ) {

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// Prevent boot if we are rendering a TB layout and not the real WP Query post.

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return $content;

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}

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// Don't boot the app if the builder is not in use

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if ( ! et_pb_is_pagebuilder_used( get_the_ID() ) || doing_filter( 'get_the_excerpt' ) ) {

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// Skip this when content should be loaded from other post or page to not mess with the default content

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if ( $is_new_page ) {

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return;

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}

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return $content;

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}

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$class = apply_filters( 'et_fb_app_preloader_class', 'et-fb-page-preloading' );

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if ( '' !== $class ) {

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$class = sprintf( ' class="%1$s"', esc_attr( $class ) );

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}

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// Only return React app wrapper for the main query.

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if ( is_main_query() ) {

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// Keep track of instances in case is_main_query() is true multiple times for the same page

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// This happens in 2017 theme when multiple Divi enabled pages are assigned to Front Page Sections

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$instances++;

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$output = sprintf( '<div id="et-fb-app"%1$s></div>', $class );

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// No need to add fallback content on a new page.

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if ( $instances > 1 && ! $is_new_page ) {

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// uh oh, we might have multiple React app in the same page, let's also add rendered content and deal with it later using JS

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$output .= sprintf( '<div class="et_fb_fallback_content" style="display: none">%s</div>', $content );

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// Stop shortcode object processor so that shortcode in the content are treated normaly.

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et_fb_reset_shortcode_object_processing();

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}

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return $output;

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}

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// Stop shortcode object processor so that shortcode in the content are treated normaly.

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et_fb_reset_shortcode_object_processing();

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return $content;

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}

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add_filter( 'the_content', 'et_fb_app_boot', 1 );

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add_filter( 'et_builder_render_layout', 'et_fb_app_boot', 1 );

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function et_fb_wp_nav_menu( $menu ) {

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// Ensure we fix any unclosed HTML tags in menu since they would break the VB

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return et_core_fix_unclosed_html_tags( $menu );

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}

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add_filter( 'wp_nav_menu', 'et_fb_wp_nav_menu' );

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function et_builder_maybe_include_bfb_template( $template ) {

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if ( et_builder_bfb_enabled() && ! is_admin() ) {

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return ET_BUILDER_DIR . 'frontend-builder/bfb-template.php';

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}

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return $template;

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}

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add_filter( 'template_include', 'et_builder_maybe_include_bfb_template', 99 );

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function et_fb_dynamic_sidebar_ob_start() {

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global $et_fb_dynamic_sidebar_buffering;

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if ( $et_fb_dynamic_sidebar_buffering ) {

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echo force_balance_tags( ob_get_clean() );

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}

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$et_fb_dynamic_sidebar_buffering = true;

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ob_start();

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}

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add_action( 'dynamic_sidebar', 'et_fb_dynamic_sidebar_ob_start' );

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function et_fb_dynamic_sidebar_after_ob_get_clean() {

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global $et_fb_dynamic_sidebar_buffering;

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if ( $et_fb_dynamic_sidebar_buffering ) {

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echo force_balance_tags( ob_get_clean() );

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$et_fb_dynamic_sidebar_buffering = false;

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}

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}

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add_action( 'dynamic_sidebar_after', 'et_fb_dynamic_sidebar_after_ob_get_clean' );

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/**

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* Added frontend builder assets.

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* Note: loading assets on head is way too early, computedVars returns undefined on header.

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* @return void

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function et_fb_wp_footer() {

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et_fb_enqueue_assets();

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// TODO: this is specific to Audio Module and we should conditionally call it once we have

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// $content set as an object, we can then to a check whether the audio module is

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// present.

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remove_all_filters( 'wp_audio_shortcode_library' );

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remove_all_filters( 'wp_audio_shortcode' );

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remove_all_filters( 'wp_audio_shortcode_class');

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}

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add_action( 'wp_footer', 'et_fb_wp_footer' );

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/**

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* Added frontend builder specific body class

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* @todo load conditionally, only when the frontend builder is used

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* @param array initial <body> classes

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* @return array modified <body> classes

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function et_fb_add_body_class( $classes ) {

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$classes[] = 'et-fb';

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if ( is_rtl() && 'on' === et_get_option( 'divi_disable_translations', 'off' ) ) {

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$classes[] = 'et-fb-no-rtl';

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}

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if ( et_builder_bfb_enabled() ) {

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$classes[] = 'et-bfb';

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}

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if ( et_builder_tb_enabled() ) {

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$classes[] = 'et-tb';

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}

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return $classes;

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}

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add_filter( 'body_class', 'et_fb_add_body_class' );

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/**

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* Added BFB specific body class

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* @todo load conditionally, only when the frontend builder is used

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* @param string initial <body> classes

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* @return string modified <body> classes

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function et_fb_add_admin_body_class( $classes ) {

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if ( is_rtl() && 'on' === et_get_option( 'divi_disable_translations', 'off' ) ) {

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$classes .= ' et-fb-no-rtl';

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}

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if ( et_builder_bfb_enabled() ) {

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$classes .= ' et-bfb';

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$post_id = et_core_page_resource_get_the_ID();

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$post_type = get_post_type( $post_id );

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// Add layout classes when on library page

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if ( 'et_pb_layout' === $post_type ) {

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$layout_type = et_fb_get_layout_type( $post_id );

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$layout_scope = et_fb_get_layout_term_slug( $post_id, 'scope' );

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$classes .= " et_pb_library_page_top-${layout_type}";

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$classes .= " et_pb_library_page_top-${layout_scope}";

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}

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}

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return $classes;

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}

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add_filter( 'admin_body_class', 'et_fb_add_admin_body_class' );

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/**

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* Remove visual builder preloader classname on BFB because BFB spins the preloader on parent level to avoid flash of unstyled elements

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* @param string builder preloader classname

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* @return string modified builder preloader classname

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function et_bfb_app_preloader_class( $classname ) {

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return et_builder_bfb_enabled() ? '' : $classname;

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}

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add_filter( 'et_fb_app_preloader_class', 'et_bfb_app_preloader_class' );

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function et_builder_inject_preboot_script() {

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$et_debug = defined( 'ET_DEBUG' ) && ET_DEBUG;

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$preboot = array(

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'debug' => $et_debug || DiviExtensions::is_debugging_extension(),

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'is_BFB' => et_builder_bfb_enabled(),

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'is_TB' => et_builder_tb_enabled(),

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);

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$preboot_path = ET_BUILDER_DIR . 'frontend-builder/build/preboot.js';

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if ( file_exists( $preboot_path ) ) {

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$preboot_script = et_()->WPFS()->get_contents( $preboot_path );

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} else {

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// if the file doesn't exists, it means we're using `yarn hot`

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$site_url = wp_parse_url( get_site_url() );

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$hot = "{$site_url['scheme']}://{$site_url['host']}:31495/preboot.js";

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$curl = curl_init();

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curl_setopt_array(

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$curl,

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array(

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CURLOPT_RETURNTRANSFER => 1,

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CURLOPT_URL => $hot,

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)

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);

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$preboot_script = curl_exec( $curl );

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}

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echo "

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var et_fb_preboot = " . wp_json_encode( $preboot ) . ";

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// Disable Google Tag Manager

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window.dataLayer = [{'gtm.blacklist': ['google', 'nonGoogleScripts', 'customScripts', 'customPixels', 'nonGooglePixels']}];

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{$preboot_script}

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</script>

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}

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add_action( 'wp_head', 'et_builder_inject_preboot_script', 0 );

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