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Filename : global-css.php
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<?php
// TODO: Delete this file in v3.27.0 - It is not in use anymore [ED-15717].
namespace Elementor\Core\Files\CSS;

use Elementor\Core\Kits\Manager;
use Elementor\Plugin;
use Elementor\Settings;

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

/**
 * Elementor global CSS file.
 *
 * Elementor CSS file handler class is responsible for generating the global CSS
 * file.
 *
 * @since 1.2.0
 */
class Global_CSS extends Base {

	/**
	 * Elementor global CSS file handler ID.
	 */
	const FILE_HANDLER_ID = 'elementor-global';

	const META_KEY = '_elementor_global_css';

	/**
	 * Get CSS file name.
	 *
	 * Retrieve the CSS file name.
	 *
	 * @since 1.6.0
	 * @access public
	 *
	 * @return string CSS file name.
	 */
	public function get_name() {
		return 'global';
	}

	/**
	 * Get file handle ID.
	 *
	 * Retrieve the handle ID for the global post CSS file.
	 *
	 * @since 1.2.0
	 * @access protected
	 *
	 * @return string CSS file handle ID.
	 */
	protected function get_file_handle_id() {
		return self::FILE_HANDLER_ID;
	}

	/**
	 * Render CSS.
	 *
	 * Parse the CSS for all the widgets and all the scheme controls.
	 *
	 * @since 1.2.0
	 * @access protected
	 */
	protected function render_css() {
		$this->render_schemes_and_globals_css();
	}

	/**
	 * Get inline dependency.
	 *
	 * Retrieve the name of the stylesheet used by `wp_add_inline_style()`.
	 *
	 * @since 1.2.0
	 * @access protected
	 *
	 * @return string Name of the stylesheet.
	 */
	protected function get_inline_dependency() {
		return 'elementor-frontend';
	}

	/**
	 * Is update required.
	 *
	 * Whether the CSS requires an update. When there are new schemes or settings
	 * updates.
	 *
	 * @since 1.2.0
	 * @access protected
	 *
	 * @return bool True if the CSS requires an update, False otherwise.
	 */
	protected function is_update_required() {
		return $this->get_meta( 'time' ) < get_option( Settings::UPDATE_TIME_FIELD );
	}

	/**
	 * Render schemes CSS.
	 *
	 * Parse the CSS for all the widgets and all the scheme controls.
	 *
	 * @since 1.2.0
	 * @access private
	 */
	private function render_schemes_and_globals_css() {
		$elementor = Plugin::$instance;

		/** @var Manager $module */
		$kits_manager = Plugin::$instance->kits_manager;
		$custom_colors_enabled = $kits_manager->is_custom_colors_enabled();
		$custom_typography_enabled = $kits_manager->is_custom_typography_enabled();

		// If both default colors and typography are disabled, there is no need to render schemes and default global css.
		if ( ! $custom_colors_enabled && ! $custom_typography_enabled ) {
			return;
		}

		foreach ( $elementor->widgets_manager->get_widget_types() as $widget ) {
			$controls = $widget->get_controls();

			$global_controls = [];

			$global_values['__globals__'] = [];

			foreach ( $controls as $control ) {
				$is_color_control = 'color' === $control['type'];
				$is_typography_control = isset( $control['groupType'] ) && 'typography' === $control['groupType'];

				// If it is a color/typography control and default colors/typography are disabled,
				// don't add the default CSS.
				if ( ( $is_color_control && ! $custom_colors_enabled ) || ( $is_typography_control && ! $custom_typography_enabled ) ) {
					continue;
				}

				$global_control = $control;

				// Handle group controls that don't have a default global property.
				if ( ! empty( $control['groupType'] ) ) {
					$global_control = $controls[ $control['groupPrefix'] . $control['groupType'] ];
				}

				// If the control has a default global defined, add it to the globals array
				// that is used in add_control_rules.
				if ( ! empty( $control['global']['default'] ) ) {
					$global_values['__globals__'][ $control['name'] ] = $global_control['global']['default'];
				}

				if ( ! empty( $global_control['global']['default'] ) ) {
					$global_controls[] = $control;
				}
			}

			foreach ( $global_controls as $control ) {
				$this->add_control_rules( $control, $controls, function( $control ) {}, [ '{{WRAPPER}}' ], [ '.elementor-widget-' . $widget->get_name() ], $global_values );
			}
		}
	}
}