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: / proc / self / cwd / wp-content / plugins / elementor / core / base / elements-iteration-actions /
Filename : assets.php
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<?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.
	 *
	 * @var array
	 */
	private $page_assets;

	/**
	 * Default value must be empty.
	 *
	 * @var array
	 */
	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 );
		}
	}
}