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202 lines
6.6 KiB
PHP

<?php
/**
* ET_GB_Block_Post_Excerpt class file.
*
* @class ET_GB_Block_Post_Excerpt
* @package Builder
*/
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
/**
* Class to handle Core - Post Excerpt block integration.
*/
class ET_GB_Block_Post_Excerpt {
/**
* Class instance.
*
* @var ET_GB_Block_Post_Excerpt
*/
private static $_instance;
/**
* Class constructor.
*/
public function __construct() {
if ( ! et_core_is_gutenberg_active() ) {
return;
}
$this->register_hooks();
}
/**
* Get class instance.
*
* @since 4.14.5
*
* @return ET_GB_Block_Post_Excerpt Class instance.
*/
public static function instance() {
if ( null === self::$_instance ) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
* Register hooks
*
* @since 4.14.5
*/
public function register_hooks() {
add_filter( 'render_block_core/post-excerpt', array( $this, 'render_block' ), 10, 2 );
add_filter( 'get_the_excerpt', array( $this, 'get_the_post_excerpt' ) );
}
/**
* Filter rendered Core - Post Excerpt block on FE.
*
* @since 4.14.5
*
* @param string $block_content Saved & serialized block data.
* @param array $parsed_block Block info.
*
* @return string Modified block post excerpt.
*/
public function render_block( $block_content, $parsed_block ) {
$attributes = ! empty( $parsed_block['attrs'] ) ? $parsed_block['attrs'] : array();
return $this->get_rendered_post_excerpt( $block_content, true, $attributes );
}
/**
* Filter post excerpt of REST API request.
*
* Only filter post excerpt rendered from REST API request. This API request is being
* used by Block Editor.
*
* @since 4.14.5
*
* @param string $post_excerpt Current post excerpt rendered.
*
* @return string Modified post excerpt.
*/
public function get_the_post_excerpt( $post_excerpt ) {
// Bail early if current request is not REST API request.
if ( ! defined( 'REST_REQUEST' ) || ! REST_REQUEST ) {
return $post_excerpt;
}
return $this->get_rendered_post_excerpt( $post_excerpt );
}
/**
* Get rendered post excerpt built with builder. Always return rendered $block_excerpt
* because it's already wrapped with Post Excerpt block wrapper.
*
* @since 4.14.5
*
* @param string $block_excerpt Current rendered post excerpt.
* @param boolean $is_wrapped Whether the post excerpt is wrapped or not.
* @param array $attributes Block attributes values.
*
* @return string Old or new rendered post excerpt.
*/
public function get_rendered_post_excerpt( $block_excerpt, $is_wrapped = false, $attributes = array() ) {
// Bail early if no global post. Need to get the post here due to some issues with
// 3rd party plugins regarding missing 2nd arg on the `get_the_excerpt` filter.
$post_id = ! empty( $attributes['postId'] ) ? (int) $attributes['postId'] : 0;
$post = $post_id ? get_post( $post_id ) : get_post();
if ( empty( $post ) ) {
return $block_excerpt;
}
if ( ! empty( $post->post_excerpt ) ) {
return $block_excerpt;
}
// Bail early if Builder framework is not loaded. There are some cases where 3rd
// party plugins run scan without visiting theme functions file.
if ( ! function_exists( 'et_builder_load_framework' ) ) {
return $block_excerpt;
}
if ( ! et_pb_is_pagebuilder_used( $post->ID ) ) {
return $block_excerpt;
}
static $et_rendered_post_excerpt = array();
// Bail early if current post is already processed.
if ( isset( $et_rendered_post_excerpt[ $post->ID ] ) ) {
return $et_rendered_post_excerpt[ $post->ID ];
}
// 1. Ensure all the ET shortcode are registered.
if ( ! did_action( 'et_builder_ready' ) ) {
// When the `get_the_excerpt` filter is called by Query Loop block on the FE,
// the `ET_Builder_Element` class is loaded properly but no ET shortcode is
// registered yet. In this case, we can call `et_builder_init_global_settings`
// & `et_builder_add_main_elements` methods directly. However, this class is not
// loaded on the Block Editor, so we have to load all related files manually
// before we can call those methods to register the shortcode.
if ( ! class_exists( 'ET_Builder_Element' ) ) {
require_once ET_BUILDER_DIR . 'class-et-builder-value.php';
require_once ET_BUILDER_DIR . 'class-et-builder-element.php';
require_once ET_BUILDER_DIR . 'ab-testing.php';
}
et_builder_init_global_settings();
et_builder_add_main_elements();
et_builder_settings_init();
}
// 2. Generate Builder post excerpt.
// WordPress post excerpt length comes from `excerpt_length` filter. And, it's
// words based length, not characters based length.
$excerpt_length = apply_filters( 'excerpt_length', 55 );
$new_post_excerpt = et_core_intentionally_unescaped( wpautop( et_delete_post_first_video( truncate_post( $excerpt_length, false, $post, true, true ) ) ), 'html' );
// 3. Ensure to return the block wrapper if the $block_excerpt is already wrapped.
if ( $is_wrapped && ! empty( $new_post_excerpt ) ) {
$new_post_excerpt = wp_strip_all_tags( $new_post_excerpt );
// If generated block excerpt is not empty, we just need to replace the excerpt
// text with the new one. Otherwise, we have to rebuilt the block excerpt.
if ( ! empty( $block_excerpt ) ) {
$wrapper = '/(<p class="wp-block-post-excerpt__excerpt">)(.*?)(<a|<\/p>)/';
$new_post_excerpt = preg_replace( $wrapper, "$1{$new_post_excerpt}$3", $block_excerpt );
} else {
// 3.a. More Text.
$more_text = ! empty( $attributes['moreText'] ) ? '<a class="wp-block-post-excerpt__more-link" href="' . esc_url( get_the_permalink( $post->ID ) ) . '">' . esc_html( $attributes['moreText'] ) . '</a>' : '';
// 3.b. Text Align Class.
$classes = ! empty( $attributes['textAlign'] ) ? 'has-text-align-' . esc_attr( $attributes['textAlign'] ) : '';
$wrapper_attrs = get_block_wrapper_attributes( array( 'class' => $classes ) );
// 3.c. Post Excerpt Content.
$content = '<p class="wp-block-post-excerpt__excerpt">' . $new_post_excerpt;
$show_more_on_new_line = et_()->array_get( $attributes, 'showMoreOnNewLine', true );
if ( $show_more_on_new_line && ! empty( $more_text ) ) {
$content .= '</p><p class="wp-block-post-excerpt__more-text">' . $more_text . '</p>';
} else {
$content .= $more_text . '</p>';
}
$new_post_excerpt = sprintf( '<div %1$s>%2$s</div>', $wrapper_attrs, $content );
}
}
$et_rendered_post_excerpt[ $post->ID ] = $new_post_excerpt;
return $new_post_excerpt;
}
}
// Initialize ET_GB_Block_Post_Excerpt.
ET_GB_Block_Post_Excerpt::instance();