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<?php
class Znb_Scripts_Manager{
function __construct(){
add_action( 'delete_post', array( $this, 'delete_asset_cache' ) );
add_action( 'wp_enqueue_scripts' , array( $this, 'enqueue_cached_assets') );
}
/**
* Will return the cache directory path and url
*
* @return array the path and url to the cache folder
*/
function get_asset_config( $type = null ){
$type = $type ? $type : 'cache';
$wp_upload_dir = wp_upload_dir();
$dir_name = apply_filters('znhg_kallyas_cache_directory','kallyas-builder');
$allowed_asset_types = array( 'cache' );
// Don't proceed if we don't allow this type of asset directory
if( ! in_array( $type, $allowed_asset_types ) ){
return false;
}
$asset_config = array(
'path' => $wp_upload_dir['basedir'] . '/' . $dir_name . '/'. $type .'/',
'url' => $wp_upload_dir['baseurl'] . '/' . $dir_name . '/'. $type .'/',
);
// Create the file if it doesn't exists
zn_create_folder( $asset_config['path'] );
return $asset_config;
}
/**
* Will delete all cached files for a post
*
* @param string $post_id The post id for wich we need to clear the cache
*/
function delete_asset_cache( $post_id = null ){
// Will delete the cache for a post id
$post_id = $post_id ? $post_id: ZNPB()->get_post_id();
$cache_config = $this->get_asset_config();
$files = array(
$cache_config['path'] . $post_id . '-layout.css',
$cache_config['path'] . $post_id . '-layout.js',
);
foreach ( $files as $file_path ) {
if ( file_exists( $file_path ) ) {
unlink( $file_path );
}
}
}
function delete_all_cache(){
// Will delete the cache for a post id
$cache_config = $this->get_asset_config();
$css_files = glob( $cache_config['path'] . '*.css' );
$js_files = glob( $cache_config['path'] . '*.js' );
if ( is_array( $css_files ) ) {
array_map( 'unlink', $css_files );
}
if ( is_array( $js_files ) ) {
array_map( 'unlink', $js_files );
}
}
function enqueue_cached_assets( $post_id = null ){
// Will enqueue both css and js
$post_id = $post_id ? $post_id: ZNPB()->get_post_id();
$cache_path = $this->get_asset_config();
$css_file_name = $post_id.'-layout.css';
$css_file = $cache_path['url'] . $css_file_name;
$js_file = $cache_path['url'] . $post_id.'-layout.js';
$version = $this->get_asset_version( $post_id );
if( $post_id ){
if( ! file_exists( $css_file ) || ZN()->is_debug() ){
$this->create_asset_css( $post_id );
}
wp_enqueue_style( $css_file_name, zn_fix_insecure_content( $css_file ), array(), $version );
}
else{
// We may have a smart area set
$registered_smart_areas = ZNPB()->get_registered_smart_areas();
if( ! empty( $registered_smart_areas ) ){
foreach ($registered_smart_areas as $key => $area_id) {
$css_file_name = $area_id.'-smart-layout.css';
$css_file = $cache_path['url'] . $css_file_name;
$js_file = $cache_path['url'] . $area_id.'-smart-layout.js';
if( ! file_exists( $css_file ) || ZN()->is_debug() ){
$this->create_smart_area_css( $area_id );
}
wp_enqueue_style( $css_file_name, zn_fix_insecure_content( $css_file ), array(), $version );
}
}
}
}
/**
* Will return an asset version
*
* @param string $post_id The current post id
*/
function get_asset_version( $post_id = null ){
$post_id = $post_id ? $post_id : ZNPB()->get_post_id();
if( ZNPB()->is_active_editor ){
return md5(uniqid());
}
else{
return md5(get_post_modified_time('U', false, $post_id));
}
}
function create_smart_area_css( $post_id = null ){
// Will create the css file asset
$post_id = $post_id ? $post_id : ZNPB()->get_post_id();
if( empty( $post_id ) ){
return false;
}
$area_layout = get_post_meta( $post_id, 'zn_page_builder_els', true );
$cache_config = $this->get_asset_config();
$loaded_assets = array();
$css = '';
// Save the old instantiated modules
$old_instances = ZNPB()->instantiated_modules;
// Instantiate area modules
ZNPB()->load_page_modules( $area_layout );
$current_layout = ZNPB()->instantiated_modules;
foreach ( $current_layout as $key => $element_instance ) {
$element_config = ZNPB()->all_available_elements[ $element_instance->data['object'] ];
if( empty( $element_config ) ){
continue;
}
// Only add css once
if( ! isset( $loaded_assets[$element_instance->data['object']] ) ){
// Add the style.css file if present
if( file_exists( $element_config['path'].'/style.css' ) ){
$css .= file_get_contents( $element_config['path'].'/style.css' );
}
// Add the style.php file if present
if( file_exists( $element_config['path'].'/style.php' ) ){
ob_start();
include( $element_config['path'].'/style.php' );
$css .= ob_get_clean();
}
}
// Add inline styles for the element
if( method_exists( $element_instance, 'css' ) ){
$css .= $element_instance->css();
}
$loaded_assets[$element_instance->data['object']] = true;
}
// Restore the old instances
ZNPB()->instantiated_modules = $old_instances;
if( ! ZN()->is_debug() ){
$css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $css); // Remove comments
$css = str_replace(': ', ':', $css); // Remove space after colons
$css = str_replace(array("\r\n", "\r", "\n", "\t", ' ', ' ', ' '), '', $css); // Remove whitespace
}
file_put_contents( $cache_config['path'] . $post_id . '-smart-layout.css', $css );
}
function create_asset_css( $post_id = null ){
// Will create the css file asset
$post_id = $post_id ? $post_id : ZNPB()->get_post_id();
if( empty( $post_id ) ){
return false;
}
$current_layout = ZNPB()->instantiated_modules;
$cache_config = $this->get_asset_config();
$loaded_assets = array();
$css = '';
foreach ( $current_layout as $key => $element_instance ) {
$element_config = ZNPB()->all_available_elements[ $element_instance->data['object'] ];
if( empty( $element_config ) ){
continue;
}
// Only add css once
if( ! isset( $loaded_assets[$element_instance->data['object']] ) ){
// Add the style.css file if present
if( file_exists( $element_config['path'].'/style.css' ) ){
$css .= file_get_contents( $element_config['path'].'/style.css' );
}
// Add the style.php file if present
if( file_exists( $element_config['path'].'/style.php' ) ){
ob_start();
include( $element_config['path'].'/style.php' );
$css .= ob_get_clean();
}
}
// Add inline styles for the element
if( method_exists( $element_instance, 'css' ) ){
$css .= $element_instance->css();
}
$loaded_assets[$element_instance->data['object']] = true;
}
if( ! ZN()->is_debug() ){
$css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $css); // Remove comments
$css = str_replace(': ', ':', $css); // Remove space after colons
$css = str_replace(array("\r\n", "\r", "\n", "\t", ' ', ' ', ' '), '', $css); // Remove whitespace
}
file_put_contents( $cache_config['path'] . $post_id . '-layout.css', $css );
}
function create_asset_js( $post_id = null ){
// Will create the js file asset
}
}
return new Znb_Scripts_Manager();