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divi/includes/builder/feature/content-retriever/retrievers/PageContentRetriever.php

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2021-12-07 11:08:05 +00:00
<?php
/**
* Page Content Retriever is used to get Page related Contents from WordPress.
*
* @since 4.11.0
*
* @package Divi
* @sub-package Builder
*/
namespace Feature\ContentRetriever;
/**
* PageContentRetriever Trait.
*/
trait PageContentRetriever {
/**
* Holds a Cache reference for every page content retrieved.
*
* @var array
*/
private $_cache = [];
/**
* Gets the entire page content, including TB Header, TB Body Layout, Post Content and TB Footer.
*
* Parameter $post must be given as a variable, since it is passed by reference.
* If $post is not given, It then uses global $post if available.
*
* @since 4.11.0
*
* @param WP_Post|int $post Optional. WP_Post instance or Post ID. Default null.
*
* @return null|string null on failure, string on success.
*/
public function get_entire_page_content( $post = null ) {
/**
* Validation Checks.
*/
$is_using_global_post = false;
if ( empty( $post ) && isset( $GLOBALS['post'] ) ) {
$post = $GLOBALS['post'];
$is_using_global_post = true;
}
if ( $post instanceof \WP_Post ) {
$wp_post = $post;
} else {
$wp_post = \WP_Post::get_instance( $post );
}
if ( ! $wp_post ) {
return null;
}
/**
* Core mechanics for retrieving content.
*/
if ( $this->_cache && isset( $this->_cache[ $wp_post->ID ] ) ) {
return $this->_cache[ $wp_post->ID ];
}
if ( $is_using_global_post ) {
$layouts = et_theme_builder_get_template_layouts();
} else {
$layouts = et_theme_builder_get_template_layouts( \ET_Theme_Builder_Request::from_post( $wp_post->ID ) );
}
$entire_page_content = '';
$enabled_layout_ids = [
ET_THEME_BUILDER_HEADER_LAYOUT_POST_TYPE => null,
ET_THEME_BUILDER_BODY_LAYOUT_POST_TYPE => null,
'content' => 'content',
ET_THEME_BUILDER_FOOTER_LAYOUT_POST_TYPE => null,
];
foreach ( $layouts as $key => $layout ) {
$is_layout_enabled = isset( $layout['enabled'], $layout['override'] ) && true === $layout['enabled'] && true === $layout['override'];
$enabled_layout_ids[ $key ] = ( array_key_exists( $key, $enabled_layout_ids ) && $is_layout_enabled ) ? $layout['id'] : null;
}
$enabled_layout_ids = array_filter( $enabled_layout_ids );
/**
* $enabled_layout_ids will be in the following order, (assuming each are present):
* header, body, footer.
* We're intentionally adding the post content so that it's appended
* right after the body layout, making the final order of $entire_page_content:
* header, body, post content, footer.
* They need to be in order for Critical CSS. Otherwise we don't know what
* content comes first and is above the fold.
*/
foreach ( $enabled_layout_ids as $key => $layout_id ) {
if ( 'content' === $layout_id ) {
$entire_page_content .= $wp_post->post_content;
} else {
$layout = get_post( $layout_id );
$entire_page_content .= $layout->post_content;
}
}
$this->_cache = array_replace( $this->_cache, [ $wp_post->ID => $entire_page_content ] );
return $entire_page_content;
}
}