%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
namespace WP_Rocket\ThirdParty\Plugins;
use WP_Rocket\Event_Management\Subscriber_Interface;
class ContactForm7 implements Subscriber_Interface {
/**
* Required CF6 version.
*
* Version in which the wpcf7_shortcode_callback action was introduced.
*
* @var string
*/
const REQUIRED_CF7_VERSION = '5.8.1';
/**
* CF7 scripts load status.
*
* @var bool
*/
private $load_js;
/**
* Subscribed events.
*/
public static function get_subscribed_events() {
return [
'template_redirect' => 'maybe_optimize_contact_form_7',
];
}
/**
* Optimize ContactForm7 scripts.
*/
public function maybe_optimize_contact_form_7() {
/**
* Filters register this compatibility events or not.
*
* @param bool $status Load the compatibility file or not, default is True.
* @param string $thirdparty Thirdparty id.
*/
if ( ! apply_filters( 'rocket_thirdparty_load', true, 'contact-form-7' ) ) {
return;
}
// The wpcf7_shortcode_callback action was added in CF7 version 5.8.1.
if ( ! defined( 'WPCF7_VERSION' ) || version_compare( WPCF7_VERSION, self::REQUIRED_CF7_VERSION, '<' ) ) {
return;
}
// Force scripts and styles to not load by default.
add_filter( 'wpcf7_load_js', '__return_false' );
add_filter( 'wpcf7_load_css', '__return_false' );
$this->load_js = false;
add_action( 'wp_enqueue_scripts', [ $this, 'load_scripts_fallback' ], PHP_INT_MAX );
add_action( 'wpcf7_enqueue_scripts', [ $this, 'scripts_loaded' ] );
// Conditionally enqueue scripts.
add_action( 'wpcf7_shortcode_callback', [ $this, 'conditionally_enqueue_scripts' ] );
add_action( 'wpcf7_shortcode_callback', [ $this, 'conditionally_enqueue_styles' ] );
}
/**
* Enqueue scripts if not already enqueued.
*/
public function conditionally_enqueue_scripts() {
if ( $this->load_js ) { // Prevent double-enqueueing when multiple forms present.
return;
}
if ( did_action( 'wp_enqueue_scripts' ) ) {
// @phpstan-ignore-next-line
wpcf7_enqueue_scripts();
return;
}
add_filter( 'wpcf7_load_js', '__return_true', 11 );
}
/**
* Enqueue styles if not already enqueued.
*/
public function conditionally_enqueue_styles() {
if ( did_action( 'wpcf7_enqueue_styles' ) ) { // Prevent double-enqueueing when multiple forms present.
return;
}
if ( did_action( 'wp_enqueue_scripts' ) ) {
// @phpstan-ignore-next-line
wpcf7_enqueue_styles();
return;
}
add_filter( 'wpcf7_load_css', '__return_true', 11 );
}
/**
* Load CF7 scripts only when CF7 main script is added as a dependency.
*
* @return void
*/
public function load_scripts_fallback() {
if ( $this->load_js || ! $this->cf7_script_enqueued_as_dependency() ) {
return;
}
// @phpstan-ignore-next-line
wpcf7_enqueue_scripts();
}
/**
* Check if CF7 main script is added as a dependency for any script.
*
* @return bool
*/
private function cf7_script_enqueued_as_dependency() {
foreach ( wp_scripts()->registered as $script ) {
foreach ( $script->deps as $dep ) {
if ( 'contact-form-7' === $dep ) {
return true;
}
}
}
return false;
}
/**
* Set a flag that scripts are loaded.
*
* @return void
*/
public function scripts_loaded() {
$this->load_js = true;
}
}
Zerion Mini Shell 1.0