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<?php
/**
* Delay Js module.
*
* @package Hummingbird\Core\Modules
* @since 3.5.0
*/
namespace Hummingbird\Core\Modules;
use Hummingbird\Core\Module;
use Hummingbird\Core\Traits\Module as ModuleContract;
use Hummingbird\Core\Utils;
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* Class Delay Js
*/
class Delayjs extends Module {
use ModuleContract;
/**
* Must exclude from delay js script.
*
* @var array
*/
private $must_excluded = array( 'wphb-add-delay' );
/**
* Initialize module.
*/
public function init() {
add_action( 'cornerstone_before_boot_app', array( $this, 'wphb_cs_disable_delay_for_app' ) );
add_action( 'cornerstone_before_custom_endpoint', array( $this, 'wphb_cs_disable_delay_for_app' ) );
add_action( 'cs_preview_frame_load', array( $this, 'wphb_cs_disable_delay_for_app' ) );
add_filter( 'wphb_buffer', array( $this, 'delay_js' ) );
if ( ! wp_next_scheduled( 'wphb_get_delay_js_exclusion' ) ) {
wp_schedule_event( time(), 'daily', 'wphb_get_delay_js_exclusion' );
}
add_action( 'wphb_get_delay_js_exclusion', array( $this, 'get_delay_js_exclusion' ) );
// Add delay js to scripts.
add_action( 'wp_print_footer_scripts', array( $this, 'wphb_add_delay_js' ), 5 );
// Fetch exclusion list on plugin activation.
add_action( 'admin_init', array( $this, 'wphb_prelaod_exclusion_lists' ) );
add_action( 'wphb_load_exclusion_list_schedule_single_event', array( $this, 'wphb_load_exclusion_list_first_time_from_api' ) );
}
/**
* Schedule the single event cron for exclusion lists.
*/
public function wphb_prelaod_exclusion_lists() {
$minify = Utils::get_module( 'minify' );
$options = $minify->get_options();
if ( isset( $options['delay_js_exclusion_list'] ) && false !== $options['delay_js_exclusion_list'] ) {
return;
}
// Run the cron once.
wp_schedule_single_event( time(), 'wphb_load_exclusion_list_schedule_single_event' );
}
/**
* Fetching the exclusion list from API first time only, this will only call once.
*/
public function wphb_load_exclusion_list_first_time_from_api() {
$this->call_api_and_update_exclusion_lists();
}
/**
* Call the API and fetched the latest exclusion list from server.
*/
public function call_api_and_update_exclusion_lists() {
$minify = Utils::get_module( 'minify' );
$api = Utils::get_api();
$response = $api->performance->get_delayjs_exclusion();
$options = $minify->get_options();
if ( ! is_wp_error( $response ) && ! empty( $response ) ) {
$options['delay_js_exclusion_list'] = (array) $response;
$minify->update_options( $options );
} elseif ( empty( $options['delay_js_exclusion_list'] ) ) {
$options['delay_js_exclusion_list'] = $this->must_excluded;
$minify->update_options( $options );
}
}
/**
* Store the JS exclusion list in DB after getting it from API.
*/
public function get_delay_js_exclusion() {
// Return early, if minify and delay are not enabled.
if ( ! $this->is_delay_enable() ) {
return;
}
$this->call_api_and_update_exclusion_lists();
}
/**
* Disabled delay for Cornerstone Builder.
*/
public function wphb_cs_disable_delay_for_app() {
if ( ! defined( 'WPHBDONOTDELAYJS' ) ) {
define( 'WPHBDONOTDELAYJS', true );
}
}
/**
* Should we delay the script or not?
*
* @return bool
*/
public function should_delay_script() {
if ( ( defined( 'WPHBDONOTDELAYJS' ) && WPHBDONOTDELAYJS ) || $this->wphb_is_page_builder() || is_preview() || is_customize_preview() ) {
return false;
}
return true;
}
/**
* Check if page builder is active.
*
* @return bool
*/
public function wphb_is_page_builder() {
$page_builders = apply_filters(
'wphb_page_builders',
array(
'elementor-preview', // Elementor.
'cs_preview_state', // Cornerstone Builder.
'fl_builder', // Beaver builder.
'et_fb', // Divi.
'ct_builder', // Oxygen.
'tve', // Thrive.
'app', // flatsome.
'uxb_iframe',
'fb-edit', // fusion builder.
'builder',
'bricks', // bricks.
'vc_editable', // wp bakery.
)
);
if ( ! empty( $page_builders ) ) {
foreach ( $page_builders as $page_builder ) {
if ( isset( $_GET[ $page_builder ] ) ) {
return true;
}
}
}
return false;
}
/**
* Toggle CDN helper function.
*
* @param bool $value CDN status to set.
*/
public function toggle_delay_js( $value ) {
$minify_options = Utils::get_module( 'minify' );
$options = $minify_options->get_options();
$options['delay_js'] = $value;
$minify_options->update_options( $options );
}
/**
* Print delay js script.
*
* @since 3.5.0
*/
public function wphb_add_delay_js() {
if ( ! $this->should_delay_script() ) {
return;
}
// Return early, if minify and delay are not enabled.
if ( ! $this->is_delay_enable() ) {
return;
}
$options = Utils::get_module( 'minify' )->get_options();
$delay_js_file = WPHB_DIR_URL . 'admin/assets/js/wphb-add-delay.min.js';
$delay_js_content = file_get_contents( $delay_js_file );
if ( ! empty( $delay_js_content ) ) {
$delay_js_timeout = $options['delay_js_timeout'];
$delay_js_content_timer = '';
if ( $delay_js_timeout > 0 ) {
$delay_js_timeout_s = $delay_js_timeout * 1000;
$delay_js_content_timer = 'var delay_js_timeout_timer = ' . $delay_js_timeout_s . ';';
}
echo '<script type="text/javascript" id="wphb-add-delay">' . $delay_js_content_timer . $delay_js_content . '</script>';
}
}
/**
* Check delay and minify are active.
*
* @since 3.5.0
*
* @return boolean
*/
public function is_delay_enable() {
if ( ! Utils::is_member() ) {
return false;
}
$options = Utils::get_module( 'minify' )->get_options();
if ( ! Utils::get_module( 'minify' )->is_active() ) {
return false;
}
$options = Utils::get_module( 'minify' )->get_options();
$delay_js = $options['delay_js'];
if ( ! $delay_js ) {
return false;
}
return true;
}
/**
* Adds delay JS attribute to the page html.
*
* @since 3.5.0
*
* @param string $html Html for the page.
*
* @return string
*/
public function delay_js( $html ) {
if ( ! $this->should_delay_script() ) {
return $html;
}
// Return early, if minify and delay are not enabled.
if ( ! $this->is_delay_enable() ) {
return $html;
}
$replaced_html = preg_replace_callback(
'/<\s*script\s*(?<attr>[^>]*?)?>(?<content>.*?)?<\s*\/\s*script\s*>/ims',
array(
$this,
'wphb_replace_scripts',
),
$html
);
if ( empty( $replaced_html ) ) {
return $html;
}
return $replaced_html;
}
/**
* Returns an array of delay js exclusion.
*
* @since 3.5.0
*
* @return array
*/
public function get_pre_defined_exclusion_list() {
$minify = Utils::get_module( 'minify' );
$options = $minify->get_options();
if ( isset( $options['delay_js_exclusion_list'] ) && ! empty( $options['delay_js_exclusion_list'] ) ) {
return $options['delay_js_exclusion_list'];
}
return $this->must_excluded;
}
/**
* Finds Delay js exclude.
*
* @since 3.5.0
*
* @return array
*/
public function wphb_find_delay_js_exclude() {
$options = Utils::get_module( 'minify' )->get_options();
$delay_js_exclusions = $options['delay_js_exclusions'];
if ( ! is_array( $delay_js_exclusions ) ) {
$delay_js_exclusions = explode( "\n", $delay_js_exclusions );
}
$delay_js_exclusions = array_filter( $delay_js_exclusions );
if ( ! $delay_js_exclusions ) {
$delay_js_exclusions = array();
}
$excluded = (array) $this->get_pre_defined_exclusion_list();
$excluded = array_unique( array_merge( $excluded, $delay_js_exclusions ) );
$excluded = apply_filters( 'wphb_delay_js_exclusions', $excluded );
$excluded = array_map( array( $this, 'wphb_clean_scripts' ), $excluded );
return $excluded;
}
/**
* Cleans JS scripts.
*
* @since 3.5.0
*
* @param array $value Script src value.
*
* @return string
*/
public function wphb_clean_scripts( $value ) {
return trim( str_replace( array( '+', '?ver', '#' ), array( '\+', '\?ver', '\#' ), $value ) );
}
/**
* Adds wphb-delay-type to the JS scripts.
*
* @since 3.5.0
*
* @param array $matches Matches array for scripts regex.
*
* @return string
*/
public function wphb_replace_scripts( $matches ) {
$excluded = $this->wphb_find_delay_js_exclude();
foreach ( $excluded as $pattern ) {
if ( preg_match( "#{$pattern}#i", $matches[0] ) ) {
return $matches[0];
}
}
$matches['attr'] = trim( $matches['attr'] );
$delay_js = $matches[0];
if ( ! empty( $matches['attr'] ) ) {
if (
strpos( $matches['attr'], 'type=' ) !== false
&&
! preg_match( '/type\s*=\s*["\'](?:text|application)\/(?:(?:x\-)?javascript|ecmascript|jscript)["\']|type\s*=\s*["\'](?:module)[ "\']/i', $matches['attr'] )
) {
return $matches[0];
}
$delay_attr = preg_replace( '/type=(["\'])(.*?)\1/i', 'data-wphb-$0', $matches['attr'], 1 );
if ( null !== $delay_attr ) {
$delay_js = preg_replace( '#' . preg_quote( $matches['attr'], '#' ) . '#i', $delay_attr, $matches[0], 1 );
}
}
return str_ireplace( '<script', '<script type="wphb-delay-type"', $delay_js );
}
}