View file File name : assets.php Content :<?php namespace Elementor\Core\Base\Elements_Iteration_Actions; use Elementor\Conditions; use Elementor\Element_Base; use Elementor\Plugin; if ( ! defined( 'ABSPATH' ) ) { exit; // Exit if accessed directly } class Assets extends Base { const ASSETS_META_KEY = '_elementor_page_assets'; // Default value must be empty. private $page_assets; // Default value must be empty. private $saved_page_assets; public function element_action( Element_Base $element_data ) { $settings = $element_data->get_active_settings(); $controls = $element_data->get_controls(); $element_assets = $this->get_assets( $settings, $controls ); $element_assets_depend = [ 'styles' => $element_data->get_style_depends(), 'scripts' => $element_data->get_script_depends(), ]; if ( $element_assets_depend ) { foreach ( $element_assets_depend as $assets_type => $assets ) { if ( empty( $assets ) ) { continue; } if ( ! isset( $element_assets[ $assets_type ] ) ) { $element_assets[ $assets_type ] = []; } foreach ( $assets as $asset_name ) { if ( ! in_array( $asset_name, $element_assets[ $assets_type ], true ) ) { $element_assets[ $assets_type ][] = $asset_name; } } } } if ( $element_assets ) { $this->update_page_assets( $element_assets ); } } public function is_action_needed() { // No need to evaluate in preview mode, will be made in the saving process. if ( Plugin::$instance->preview->is_preview_mode() ) { return false; } $page_assets = $this->get_saved_page_assets(); // When $page_assets is array it means that the assets registration has already been made at least once. if ( is_array( $page_assets ) ) { return false; } return true; } public function after_elements_iteration() { // In case that the page assets value is empty, it should still be saved as an empty array as an indication that at lease one iteration has occurred. if ( ! is_array( $this->page_assets ) ) { $this->page_assets = []; } $this->get_document_assets(); // Saving the page assets data. $this->document->update_meta( self::ASSETS_META_KEY, $this->page_assets ); if ( 'render' === $this->mode && $this->page_assets ) { Plugin::$instance->assets_loader->enable_assets( $this->page_assets ); } } private function get_saved_page_assets( $force_meta_fetch = false ) { if ( ! is_array( $this->saved_page_assets ) || $force_meta_fetch ) { $this->saved_page_assets = $this->document->get_meta( self::ASSETS_META_KEY ); } return $this->saved_page_assets; } private function update_page_assets( $new_assets ) { if ( ! is_array( $this->page_assets ) ) { $this->page_assets = []; } foreach ( $new_assets as $assets_type => $assets_type_data ) { if ( ! isset( $this->page_assets[ $assets_type ] ) ) { $this->page_assets[ $assets_type ] = []; } foreach ( $assets_type_data as $asset_name ) { if ( ! in_array( $asset_name, $this->page_assets[ $assets_type ], true ) ) { $this->page_assets[ $assets_type ][] = $asset_name; } } } } private function get_assets( $settings, $controls ) { $assets = []; foreach ( $settings as $setting_key => $setting ) { if ( ! isset( $controls[ $setting_key ] ) ) { continue; } $control = $controls[ $setting_key ]; // Enabling assets loading from the registered control fields. if ( ! empty( $control['assets'] ) ) { foreach ( $control['assets'] as $assets_type => $dependencies ) { foreach ( $dependencies as $dependency ) { if ( ! empty( $dependency['conditions'] ) ) { $is_condition_fulfilled = Conditions::check( $dependency['conditions'], $settings ); if ( ! $is_condition_fulfilled ) { continue; } } if ( ! isset( $assets[ $assets_type ] ) ) { $assets[ $assets_type ] = []; } $assets[ $assets_type ][] = $dependency['name']; } } } // Enabling assets loading from the control object. $control_obj = Plugin::$instance->controls_manager->get_control( $control['type'] ); $control_conditional_assets = $control_obj::get_assets( $setting ); if ( $control_conditional_assets ) { foreach ( $control_conditional_assets as $assets_type => $dependencies ) { foreach ( $dependencies as $dependency ) { if ( ! isset( $assets[ $assets_type ] ) ) { $assets[ $assets_type ] = []; } $assets[ $assets_type ][] = $dependency; } } } } return $assets; } private function get_document_assets() { $document_id = $this->document->get_post()->ID; // Getting the document instance in order to get the most updated settings. $updated_document = Plugin::$instance->documents->get( $document_id, false ); $document_settings = $updated_document->get_settings(); $document_controls = $this->document->get_controls(); $document_assets = $this->get_assets( $document_settings, $document_controls ); if ( $document_assets ) { $this->update_page_assets( $document_assets ); } } public function __construct( $document ) { parent::__construct( $document ); // No need to enable assets in preview mode, all assets will be loaded by default by the assets loader. if ( Plugin::$instance->preview->is_preview_mode() ) { return; } $page_assets = $this->get_saved_page_assets(); // If $page_assets is not empty then enabling the assets for loading. if ( $page_assets ) { Plugin::$instance->assets_loader->enable_assets( $page_assets ); } } }