aristath/kirki

<?php
/**
 * Gutenberg integration for Kirki.
 *
 * This class contains methods for integrating Kirki with
 * the new WordPress core editor, Gutenberg.  It provides
 * fonts and styles to be output by the theme.
 *
 * @package     Kirki
 * @category    Core
 * @author      Tim Elsass
 * @copyright   Copyright (c) 2019, Ari Stathopoulos (@aristath)
 * @license     https://opensource.org/licenses/MIT
 * @since       3.0.35
 */

namespace Kirki\Module;

use Kirki\Compatibility\Kirki;

/**
 * Wrapper class for static methods.
 *
 * @since 3.0.35
 */
class Editor_Styles {

    /**
     * Configuration reference.
     *
     * @access public
     * @since 3.0.35
     * @var object $configs
     */
    private $configs;

    /**
     * Whether feature is enabled.
     *
     * @access public
     * @since 3.0.35
     * @var bool $enabled
     */
    public $enabled;

    /**
     * CSS Module reference.
     *
     * @access public
     * @since 3.0.35
     * @var object $modules_css
     */
    public $modules_css;

    /**
     * Webfonts Module reference.
     *
     * @access public
     * @since 3.0.35
     * @var object $modules_webfonts
     */
    private $modules_webfonts;

    /**
     * Google Fonts reference.
     *
     * @access public
     * @since 3.0.35
     * @var object $google_fonts
     */
    private $google_fonts;

    /**
     * Constructor.
     *
     * @access public
     * @since 3.0.0
     */
    public function __construct() {
        add_action( 'admin_init', [ $this, 'init' ] );
    }

    /**
     * Initialize Module.
     *
     * Sets class properties and add necessary hooks.
     *
     * @since 3.0.35
     */
    public function init() {
        $this->set_configs();
        $this->set_enabled();
        $this->set_modules_css();
        $this->set_google_fonts();
        $this->set_modules_webfonts();
        $this->add_hooks();
    }

    /**
     * Add hooks for Gutenberg editor integration.
     *
     * @access protected
     * @since 3.0.35
     */
    protected function add_hooks() {
        if ( ! $this->is_disabled() ) {
            add_action( 'enqueue_block_editor_assets', [ $this->modules_css, 'enqueue_styles' ], 999 );
            add_action( 'after_setup_theme', [ $this, 'add_theme_support' ], 999 );
        }
    }

    /**
     * Add theme support for editor styles.
     *
     * This checks if theme has declared editor-styles support
     * already, and if not present, declares it. Hooked late.
     *
     * @access public
     * @since 3.0.35
     */
    public function add_theme_support() {
        if ( true !== get_theme_support( 'editor-styles' ) ) {
            add_theme_support( 'editor-styles' );
        }
    }

    /**
     * Helper method to check if feature is disabled.
     *
     * Feature can be disabled by KIRKI_NO_OUTPUT constant,
     * gutenbeg_support argument, and disabled output argument.
     *
     * @access public
     * @param array $args An array of arguments.
     * @since 3.0.35
     *
     * @return bool $disabled Is gutenberg integration feature disabled?
     */
    private function is_disabled( $args = [] ) {
        if ( defined( 'KIRKI_NO_OUTPUT' ) && true === KIRKI_NO_OUTPUT ) {
            return true;
        }

        if ( ! empty( $args ) ) {
            if ( isset( $args['disable_output'] ) && true === $args['disable_output'] ) {
                return true;
            }

            if ( ! isset( $args['gutenberg_support'] ) || true !== $args['gutenberg_support'] ) {
                return true;
            }
        }

        return false;
    }

    /**
     * Set class property for $configs.
     *
     * @access private
     * @since 3.0.35
     */
    private function set_configs() {
        $this->configs = Kirki::$config;
        return $this->configs;
    }

    /**
     * Set class property for $enabled.
     *
     * @access private
     * @since 3.0.35
     */
    private function set_enabled() {
        $this->enabled = ! $this->is_disabled();
    }

    /**
     * Set class property for $modules_css.
     *
     * @access private
     * @since 3.0.35
     */
    private function set_modules_css() {
        $this->modules_css = new \Kirki\Module\CSS();
    }

    /**
     * Set class property for $google_fonts.
     *
     * @access private
     * @since 3.0.35
     */
    private function set_google_fonts() {
        $this->google_fonts = \Kirki\Module\Webfonts\Google::get_instance();
    }

    /**
     * Set class property for $modules_webfonts.
     *
     * @access private
     * @since 3.0.35
     */
    private function set_modules_webfonts() {
        $this->modules_webfonts = new \Kirki\Module\Webfonts();
    }
}