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<?php

/**
 * Gets option value from the single theme option, stored as an array in the database
 * if all options stored in one row.
 * Stores the serialized array with theme options into the global variable on the first function run on the page.
 *
 * If options are stored as separate rows in database, it simply uses get_option() function.
 *
 * @param string $option_name Theme option name.
 * @param string $default_value Default value that should be set if the theme option isn't set.
 * @param string $used_for_object "Object" name that should be translated into corresponding "object" if WPML is activated.
 * @return mixed Theme option value or false if not found.
 */
if ( ! function_exists( 'et_get_option' ) ) :
	/**
	 * Gets option value from the single theme option, stored as an array in the database
	 * if all options stored in one row.
	 * Stores the serialized array with theme options into the global variable on the first function run on the page.
	 *
	 * If options are stored as separate rows in database, it simply uses get_option() function.
	 *
	 * @param string $option_name Theme option name.
	 * @param string $default_value Default value that should be set if the theme option isn't set.
	 * @param string $used_for_object "Object" name that should be translated into corresponding "object" if WPML is activated.
	 * @param bool   $force_default_value Is return provided default.
	 * @param bool   $is_global_setting Is Global Setting.
	 * @param string $global_setting_main_name Global Setting name.
	 * @param string $global_setting_sub_name Global Setting sub name.
	 * @param bool   $is_product_setting Product setting flag.
	 * @return mixed Theme option value or false if not found.
	 */
	function et_get_option( $option_name, $default_value = '', $used_for_object = '', $force_default_value = false, $is_global_setting = false, $global_setting_main_name = '', $global_setting_sub_name = '', $is_product_setting = false ) {
		global $et_divi_builder_plugin_options;

$shortname = 'divi_builder_plugin';

if ( $is_product_setting ) {
			$et_product_setting_name = 'et_' . $shortname . '_' . $option_name;

$option_value = $force_default_value ? get_option( $et_product_setting_name, $default_value ) : get_option( $et_product_setting_name );
		} else {
			$et_theme_options_name = 'et_' . $shortname;

if ( ! isset( $et_divi_builder_plugin_options ) ) {
				$et_divi_builder_plugin_options = get_option( $et_theme_options_name );
			}
			$option_value = isset( $et_divi_builder_plugin_options[ $option_name ] ) ? $et_divi_builder_plugin_options[ $option_name ] : false;

// option value might be equal to false, so check if the option is not set in the database.
			if ( ! isset( $et_divi_builder_plugin_options[ $option_name ] ) && ( '' !== $default_value || $force_default_value ) ) {
				$option_value = $default_value;
			}
		}

if ( '' !== $used_for_object && in_array( $used_for_object, array( 'page', 'category' ), true ) && is_array( $option_value ) ) {
			$option_value = et_generate_wpml_ids( $option_value, $used_for_object );
		}

return $option_value;
	}
endif;

if ( ! function_exists( 'et_update_option' ) ) :
	/**
	 * Update option value in theme option, stored as an array in the database
	 * if all options stored in one row.
	 *
	 * If options are stored as separate rows in database, it simply uses update_option() function.
	 *
	 * @param string $option_name Theme option name.
	 * @param string $new_value Theme option value.
	 * @param bool   $is_new_global_setting Global setting flag.
	 * @param string $global_setting_main_name Global setting name.
	 * @param string $global_setting_sub_name Global setting sub name.
	 * @param bool   $is_product_setting Product setting flag.
	 */
	function et_update_option( $option_name, $new_value, $is_new_global_setting = false, $global_setting_main_name = '', $global_setting_sub_name = '', $is_product_setting = false ) {
		global $et_divi_builder_plugin_options;

if ( $is_new_global_setting && '' !== $global_setting_main_name && '' !== $global_setting_sub_name ) {
			$global_setting = get_option( $global_setting_main_name, array() );

$global_setting[ $global_setting_sub_name ] = $new_value;

update_option( $global_setting_main_name, $global_setting );
		} elseif ( $is_product_setting ) {
			$et_product_setting_name = 'et_divi_builder_plugin_' . $option_name;

update_option( $et_product_setting_name, $new_value, false );
		} else {
			$shortname = 'divi_builder_plugin';

$et_theme_options_name = 'et_' . $shortname;

if ( ! isset( $et_divi_builder_plugin_options ) ) {
				$et_divi_builder_plugin_options = get_option( $et_theme_options_name );
			}

if ( false === $et_divi_builder_plugin_options ) {
				$et_divi_builder_plugin_options = array();
			}

$et_divi_builder_plugin_options[ $option_name ] = $new_value;

$option_name = $et_theme_options_name;
			$new_value   = $et_divi_builder_plugin_options;

update_option( $option_name, $new_value );
		}
	}
endif;

if ( ! function_exists( 'et_delete_option' ) ) :
function et_delete_option( $option_name ){
	global $et_divi_builder_plugin_options;

$shortname = 'divi_builder_plugin';

$et_theme_options_name = 'et_' . $shortname;

if ( ! isset( $et_divi_builder_plugin_options ) ) $et_divi_builder_plugin_options = get_option( $et_theme_options_name );

unset( $et_divi_builder_plugin_options[$option_name] );
	update_option( $et_theme_options_name, $et_divi_builder_plugin_options );
}
endif;

/* this function gets thumbnail from Post Thumbnail or Custom field or First post image */
if ( ! function_exists( 'get_thumbnail' ) ) :
function get_thumbnail($width=100, $height=100, $class='', $alttext='', $titletext='', $fullpath=false, $custom_field='', $post='') {
	if ( $post == '' ) global $post;
	global $shortname;

$thumb_array['thumb'] = '';
	$thumb_array['use_timthumb'] = true;
	if ($fullpath) $thumb_array['fullpath'] = ''; //full image url for lightbox

$new_method = true;

if ( has_post_thumbnail( $post->ID ) ) {
		$thumb_array['use_timthumb'] = false;

$et_fullpath = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'full' );
		$thumb_array['fullpath'] = $et_fullpath[0];
		$thumb_array['thumb'] = $thumb_array['fullpath'];
	}

if ($thumb_array['thumb'] == '') {
		if ($custom_field == '') $thumb_array['thumb'] = esc_attr( get_post_meta($post->ID, 'Thumbnail', $single = true) );
		else {
			$thumb_array['thumb'] = esc_attr( get_post_meta($post->ID, $custom_field, $single = true) );
			if ($thumb_array['thumb'] == '') $thumb_array['thumb'] = esc_attr( get_post_meta($post->ID, 'Thumbnail', $single = true) );
		}

#if custom field used for small pre-cropped image, open Thumbnail custom field image in lightbox
		if ($fullpath) {
			$thumb_array['fullpath'] = $thumb_array['thumb'];
			if ($custom_field == '') $thumb_array['fullpath'] = apply_filters('et_fullpath', et_path_reltoabs(esc_attr($thumb_array['thumb'])));
			elseif ( $custom_field <> '' && get_post_meta($post->ID, 'Thumbnail', $single = true) ) $thumb_array['fullpath'] = apply_filters( 'et_fullpath', et_path_reltoabs(esc_attr(get_post_meta($post->ID, 'Thumbnail', $single = true))) );
		}
	}

return $thumb_array;
}
endif;

/* this function prints thumbnail from Post Thumbnail or Custom field or First post image */
if ( ! function_exists( 'print_thumbnail' ) ) :
function print_thumbnail($thumbnail = '', $use_timthumb = true, $alttext = '', $width = 100, $height = 100, $class = '', $echoout = true, $forstyle = false, $resize = true, $post='', $et_post_id = '' ) {
	if ( is_array( $thumbnail ) ){
		extract( $thumbnail );
	}

if ( $post == '' ) global $post, $et_theme_image_sizes;

$output = '';

$et_post_id = '' != $et_post_id ? (int) $et_post_id : $post->ID;

if ( has_post_thumbnail( $et_post_id ) ) {
		$thumb_array['use_timthumb'] = false;

$image_size_name = $width . 'x' . $height;
		$et_size = isset( $et_theme_image_sizes ) && array_key_exists( $image_size_name, $et_theme_image_sizes ) ? $et_theme_image_sizes[$image_size_name] : array( $width, $height );

$et_attachment_image_attributes = wp_get_attachment_image_src( get_post_thumbnail_id( $et_post_id ), $et_size );
		$thumbnail = $et_attachment_image_attributes[0];
	}

if ( false === $forstyle ) {
		$output = '<img src="' . esc_url( $thumbnail ) . '"';

if ($class <> '') $output .= " class='" . esc_attr( $class ) . "' ";

$dimensions = apply_filters( 'et_print_thumbnail_dimensions', " width='" . esc_attr( $width ) . "' height='" .esc_attr( $height ) . "'" );

$output .= " alt='" . esc_attr( strip_tags( $alttext ) ) . "'{$dimensions} />";

if ( ! $resize ) $output = $thumbnail;
	} else {
		$output = $thumbnail;
	}

if ($echoout) echo $output;
	else return $output;
}
endif;

if ( ! function_exists( 'et_path_reltoabs' ) ) :
function et_path_reltoabs( $imageurl ){
	if ( strpos(strtolower($imageurl), 'http://') !== false || strpos(strtolower($imageurl), 'https://') !== false ) return $imageurl;

if ( strpos( strtolower($imageurl), $_SERVER['HTTP_HOST'] ) !== false )
		return $imageurl;
	else {
		$imageurl = esc_url( apply_filters( 'et_path_relative_image', site_url() . '/' ) . $imageurl );
	}

return $imageurl;
}
endif;

/*this function allows for the auto-creation of post excerpts*/
if ( ! function_exists( 'truncate_post' ) ) :
function truncate_post( $amount, $echo = true, $post = '' ) {
	if ( '' == $post ) {
		global $post;
	}

if ( post_password_required( $post ) ) {
		$post_excerpt = get_the_password_form();

if ( $echo ) {
			echo $post_excerpt;
			return;
		}

return $post_excerpt;
	}

$post_excerpt = apply_filters( 'the_excerpt', $post->post_excerpt );

// get the post content
	$truncate = $post->post_content;

// remove caption shortcode from the post content
	$truncate = preg_replace('@\[caption[^\]]*?\].*?\[\/caption]@si', '', $truncate);

/**
	 * Filter automatically generated post excerpt before it gets truncated.
	 *
	 * @since 2.17
	 *
	 * @param string $excerpt
	 * @param integer $post_id
	 */
	$truncate = apply_filters( 'et_truncate_post', $truncate, $post->ID );

// apply content filters
	$truncate = apply_filters( 'the_content', $truncate );

// decide if we need to append dots at the end of the string
	if ( strlen( $truncate ) <= $amount ) {
		$echo_out = '';
	} else {
		$echo_out = '...';
		// $amount = $amount - 3;
	}

// trim text to a certain number of characters, also remove spaces from the end of a string ( space counts as a character )
	$truncate = rtrim( et_wp_trim_words( $truncate, $amount, '' ) );

// remove the last word to make sure we display all words correctly
	if ( '' != $echo_out ) {
		$new_words_array = (array) explode( ' ', $truncate );
		array_pop( $new_words_array );

$truncate = implode( ' ', $new_words_array );

// append dots to the end of the string
		$truncate .= $echo_out;
	}

if ( $echo ) {
		echo $truncate;
	} else {
		return $truncate;
	}
}
endif;

if ( ! function_exists( 'et_wp_trim_words' ) ) :
function et_wp_trim_words( $text, $num_words = 55, $more = null ) {
	if ( null === $more )
		$more = esc_html__( '&hellip;' );
	$original_text = $text;
	$text = wp_strip_all_tags( $text );

$text = trim( preg_replace( "/[\n\r\t ]+/", ' ', $text ), ' ' );
	preg_match_all( '/./u', $text, $words_array );
	$words_array = array_slice( $words_array[0], 0, $num_words + 1 );
	$sep = '';

if ( count( $words_array ) > $num_words ) {
		array_pop( $words_array );
		$text = implode( $sep, $words_array );
		$text = $text . $more;
	} else {
		$text = implode( $sep, $words_array );
	}

return apply_filters( 'wp_trim_words', $text, $num_words, $more, $original_text );
}
endif;

if ( ! function_exists( 'et_get_safe_localization' ) ) :
	function et_get_safe_localization( $string ) {
		return wp_kses( $string, et_get_allowed_localization_html_elements() );
	}
endif;

if ( ! function_exists( 'et_get_allowed_localization_html_elements' ) ) :
	function et_get_allowed_localization_html_elements() {
		$allowlisted_attributes = array(
			'id'    => array(),
			'class' => array(),
			'style' => array(),
		);

$elements = array(
			'a'      => array(
				'href'  => array(),
				'title' => array(),
				'target' => array(),
			),
			'b'      => array(),
			'em'     => array(),
			'p'      => array(),
			'span'   => array(),
			'div'    => array(),
			'strong' => array(),
		);

foreach ( $elements as $tag => $attributes ) {
			$elements[ $tag ] = array_merge( $attributes, $allowlisted_attributes );
		}

return $elements;
	}
endif;

if ( ! function_exists( 'et_sanitize_alpha_color' ) ) :
	/**
	 * Sanitize RGBA color
	 * @param string
	 * @return string|bool
	 */
	function et_sanitize_alpha_color( $color ) {
		// Trim unneeded whitespace
		$color = str_replace( ' ', '', $color );

// If this is hex color, validate and return it
		if ( 1 === preg_match( '|^#([A-Fa-f0-9]{3}){1,2}$|', $color ) ) {
			return $color;
		}

// If this is rgb, validate and return it
		elseif ( 'rgb(' === substr( $color, 0, 4 ) ) {
			sscanf( $color, 'rgb(%d,%d,%d)', $red, $green, $blue );

if ( ( $red >= 0 && $red <= 255 ) &&
				 ( $green >= 0 && $green <= 255 ) &&
				 ( $blue >= 0 && $blue <= 255 )
				) {
				return "rgb({$red},{$green},{$blue})";
			}
		}

// If this is rgba, validate and return it
		elseif ( 'rgba(' === substr( $color, 0, 5 ) ) {
			sscanf( $color, 'rgba(%d,%d,%d,%f)', $red, $green, $blue, $alpha );

if ( ( $red >= 0 && $red <= 255 ) &&
				 ( $green >= 0 && $green <= 255 ) &&
				 ( $blue >= 0 && $blue <= 255 ) &&
				   $alpha >= 0 && $alpha <= 1
				) {
				return "rgba({$red},{$green},{$blue},{$alpha})";
			}
		}

return false;
	}
endif;

if ( ! function_exists( 'et_pb_get_google_api_key' ) ) :
	function et_pb_get_google_api_key() {
		$google_api_option = get_option( 'et_google_api_settings' );
		$google_api_key = isset( $google_api_option['api_key'] ) ? $google_api_option['api_key'] : '';

return $google_api_key;
	}
endif;

if ( function_exists( 'woocommerce_get_product_thumbnail' ) ) {
	add_action( 'et_pb_shop_before_print_shop', 'et_divi_builder_add_shop_thumbnail' );

// Include Overlay in Related Products when using DBP since it is not included by default.
	remove_action( 'woocommerce_before_shop_loop_item_title', 'woocommerce_template_loop_product_thumbnail', 10 );
	add_action( 'woocommerce_before_shop_loop_item_title', 'et_divi_builder_template_loop_product_thumbnail' );

/**
	 * Remove WooCommerce's default product thumbnail on shop module and add Divi's product thumbnail
	 */
	function et_divi_builder_add_shop_thumbnail() {
		global $wp_filter;

$item_title_hook = isset( $wp_filter['woocommerce_before_shop_loop_item_title'] ) ? $wp_filter['woocommerce_before_shop_loop_item_title'] : false;

// If default product thumbnail is registered, deregister and register Divi's product thumbnail
		// Theme which has modified WooCommerce's product thumbnail should be modified via theme compatibility file
		if ( isset( $item_title_hook ) && isset( $item_title_hook[10] ) && isset( $item_title_hook[10]['woocommerce_template_loop_product_thumbnail'] ) ) {
			remove_action( 'woocommerce_before_shop_loop_item_title', 'woocommerce_template_loop_product_thumbnail' );
			add_action( 'woocommerce_before_shop_loop_item_title', 'et_divi_builder_template_loop_product_thumbnail', 10 );
		}
	}

function et_divi_builder_template_loop_product_thumbnail() {
		printf( '<span class="et_shop_image">%1$s<span class="et_overlay"></span></span>',
			woocommerce_get_product_thumbnail()
		);
	}
}

/**
 * Modify toggle module options
 * @param array  $options default toggle module option
 * @param string $slug module slug
 * @param string $main_css_element main css selector
 * @return array modified option
 */
function et_divi_builder_fix_toggle_advanced_options( $options, $slug, $main_css_element ) {
	$options['fonts']['body']['css']['letter_spacing'] = "{$main_css_element} *";

return $options;
}
add_filter( 'et_pb_toggle_advanced_options', 'et_divi_builder_fix_toggle_advanced_options', 10, 3 );

/**
 * Append the current theme name to the body class
 */
if ( ! function_exists( 'et_pb_append_theme_class' ) ) :
function et_pb_append_theme_class( $body_class ) {
	$theme_data = wp_get_theme();

if ( empty( $theme_data ) || '' === $theme_data->Name ) {
		return $body_class;
	}

$body_class[] = sprintf( 'et-pb-theme-%1$s', strtolower( esc_attr( $theme_data->Name ) ) );

return $body_class;
}
endif;
add_filter( 'body_class', 'et_pb_append_theme_class' );

/**
 * DBP implementation for BFB enabled check.
 *
 * @since 2.18
 *
 * @return bool
 */
function dbp_filter_bfb_enabled() {
	global $pagenow;

$bfb_settings = get_option( 'et_bfb_settings' );

$enabled = isset( $bfb_settings['enable_bfb'] ) && 'on' === $bfb_settings['enable_bfb'];

if ( is_admin() && ! in_array( $pagenow, array( 'post.php', 'post-new.php', 'admin-ajax.php' ) ) ) {
		$enabled = false;
	} else if ( ! is_admin() && ! isset( $_GET['et_bfb'] ) ) {
		$enabled = false;
	}

return $enabled;
}
add_filter( 'et_builder_bfb_enabled', 'dbp_filter_bfb_enabled' );

/**
 * DBP implementation for fresh install check.
 *
 * @since 2.18
 *
 * @return bool
 */
function dbp_filter_is_fresh_install() {
	$options = get_option( 'et_pb_builder_options', array() );

return empty( $options );
}
add_filter( 'et_builder_is_fresh_install', 'dbp_filter_is_fresh_install' );

/**
 * DBP implementation for BFB toggle.
 *
 * @since 2.18
 *
 * @param bool $enable
 *
 * @return void
 */
function dbp_action_toggle_bfb( $enable ) {
	$bfb_value = $enable ? 'on' : 'off';

et_update_option( '', $bfb_value, true, 'et_bfb_settings', 'enable_bfb' );
}
add_action( 'et_builder_toggle_bfb', 'dbp_action_toggle_bfb' );

/**
 * Filter the list of post types the Divi Builder is enabled on based on plugin options.
 *
 * @since 2.10
 *
 * @param array<string, string> $options
 *
 * @return array<string, string>
 */
if ( ! function_exists( 'et_divi_builder_filter_enabled_builder_post_type_options' ) ) :
function et_divi_builder_filter_enabled_builder_post_type_options( $options ) {
	// Cache results to avoid unnecessary option fetching multiple times per request.
	static $stored_options = null;

if ( null === $stored_options ) {
		$stored_options = et_get_option( 'et_pb_post_type_integration', array() );
	}

return $stored_options;
}
endif;
add_filter( 'et_builder_enabled_builder_post_type_options', 'et_divi_builder_filter_enabled_builder_post_type_options' );

/**
 * Check if posts of given wp_query has builder or not. This check is optimized for speed and not
 * accuracy so as long as one of the post contains `[et_pb_section`, this check will consider it
 * use builder
 *
 * @since ??
 *
 * @param WP_Query $wp_query
 *
 * @return bool
 */
function et_dbp_is_query_has_builder( $wp_query ) {
	// Cache result
	static $et_dbp_is_query_has_builder = array();

// No posts found, return early. Can't use have_posts() here because it causes infinite loop
	if ( empty( $wp_query->posts ) ) {
		return false;
	}

// Populate ids of current wp_query
	$ids = implode( '-', wp_list_pluck( $wp_query->posts, 'ID' ) );

// This search has been done before; return from static var
	if ( isset( $et_dbp_is_query_has_builder[ $ids ] ) ) {
		return $et_dbp_is_query_has_builder[ $ids ];
	}

// Loop posts, and look for section module shortcode's substring
	$has = false;

foreach ( $wp_query->posts as $post ) {
		if ( false !== strpos( $post->post_content, '[et_pb_section' ) ) {
			$has = true;

// If have been found, no need to look further
			break;
		}
	}

// Save result on static var to speed up next search
	$et_dbp_is_query_has_builder[ $ids ] = $has;

return $has;
}

/**
 * Check if posts on given wp_query needs to be wrapped so the styling is correctly assigned
 * Singular page's wrapper has been correctly assigned by builder; what hasn't been correctly
 * assigned is non-singular posts query
 *
 * @since ??
 *
 * @param WP_Query $wp_query
 *
 * @return bool
 */
function et_dbp_should_wrap_content_has_builder( $wp_query ) {
	// Do not wrap if not main query, is singular, no section shortcode found on posts content
	$do_not_wrap = ! is_main_query() || is_singular() || ! et_dbp_is_query_has_builder( $wp_query );

return ! $do_not_wrap;
}

/**
 * Wrap main loop of non singular page if one of the post has builder content
 *
 * @since ??
 *
 * @param WP_Query $wp_query
 */
function et_dbp_main_loop_start( $wp_query ) {
	// If TB's template already used, no need to wrap loops since the entire page is already wrapped
	$override_header = et_theme_builder_overrides_layout( ET_THEME_BUILDER_HEADER_LAYOUT_POST_TYPE );
	$override_body   = et_theme_builder_overrides_layout( ET_THEME_BUILDER_BODY_LAYOUT_POST_TYPE );
	$override_footer = et_theme_builder_overrides_layout( ET_THEME_BUILDER_FOOTER_LAYOUT_POST_TYPE );

if ( $override_header || $override_body || $override_footer ) {
		return;
	}

if ( ! et_dbp_should_wrap_content_has_builder( $wp_query ) ) {
		return;
	}

if ( wp_doing_ajax() || is_admin() || is_feed() ) {
		return;
	}

echo et_builder_get_builder_content_opening_wrapper();
}
add_action( 'loop_start', 'et_dbp_main_loop_start');

/**
 * (close) Wrap main loop of non singular page if one of the post has builder content
 *
 * @since ??
 *
 * @param WP_Query $wp_query
 */
function et_dbp_main_loop_end( $wp_query ) {
	// If TB's template already used, no need to wrap loops since the entire page is already wrapped
	$override_header = et_theme_builder_overrides_layout( ET_THEME_BUILDER_HEADER_LAYOUT_POST_TYPE );
	$override_body   = et_theme_builder_overrides_layout( ET_THEME_BUILDER_BODY_LAYOUT_POST_TYPE );
	$override_footer = et_theme_builder_overrides_layout( ET_THEME_BUILDER_FOOTER_LAYOUT_POST_TYPE );

if ( $override_header || $override_body || $override_footer ) {
		return;
	}

if ( ! et_dbp_should_wrap_content_has_builder( $wp_query ) ) {
		return;
	}

if ( wp_doing_ajax() || is_admin() || is_feed() ) {
		return;
	}

echo et_builder_get_builder_content_closing_wrapper();
}
add_action( 'loop_end', 'et_dbp_main_loop_end');

/**
 * Wrap the content of non singular page with layout wrapper if one of the post has builder content.
 * NOTE: layout content wrapper can't be added righ after builder wrapper because it might affect
 * main loops' content such as post title, etc
 *
 * @since ??
 *
 * @param string $content
 *
 * @return string modified content
 */
function et_dbp_main_loop_content( $content ) {
	global $wp_query;

if ( ! et_dbp_should_wrap_content_has_builder( $wp_query ) ) {
		return $content;
	}

return et_builder_get_layout_opening_wrapper() . $content . et_builder_get_layout_closing_wrapper();
}
add_filter( 'the_content', 'et_dbp_main_loop_content' );

Editing: functions.php

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