functions.php

<?php
/**
 * Freedom functions related to defining constants, adding files and WordPress core functionality.
 *
 * Defining some constants, loading all the required files and Adding some core functionality.
 * @uses add_theme_support() To add support for post thumbnails and automatic feed links.
 * @uses register_nav_menu() To add support for navigation menu.
 * @uses set_post_thumbnail_size() To set a custom post thumbnail size.
 *
 * @package ThemeGrill
 * @subpackage Freedom
 * @since Freedom 1.0
 */

/**
 * Set the content width based on the theme's design and stylesheet.
 */
global $content_width;
if ( ! isset( $content_width ) )
  $content_width = 660;

/**
 * $content_width global variable adjustment as per layout option.
 */
function freedom_content_width() {
   global $post;
   global $content_width;

   if( $post ) { $layout_meta = get_post_meta( $post->ID, 'freedom_page_layout', true ); }
   if( empty( $layout_meta ) || is_archive() || is_search() ) { $layout_meta = 'default_layout'; }
   $freedom_default_layout = get_theme_mod( 'freedom_default_layout', 'no_sidebar_full_width' );

   if( $layout_meta == 'default_layout' ) {
      if ( $freedom_default_layout != 'no_sidebar_full_width' ) { $content_width = 1000; /* pixels */ }
      else { $content_width = 660; /* pixels */ }
   }
   elseif ( $layout_meta == 'no_sidebar_full_width' ) { $content_width = 1000; /* pixels */ }
   else { $content_width = 660; /* pixels */ }
}
add_action( 'template_redirect', 'freedom_content_width' );

add_action( 'after_setup_theme', 'freedom_setup' );

/**
 * Enqueue block editor styles.
 *
 * @since Freedom 1.1.9
 */
function freedom_block_editor_styles()
{
   wp_enqueue_style('freedom-editor-googlefonts', '//fonts.googleapis.com/css?family=Fira+Sans|Vollkorn');
   wp_enqueue_style('freedom-block-editor-styles', get_template_directory_uri() . '/style-editor-block.css');
}
add_action('enqueue_block_editor_assets', 'freedom_block_editor_styles', 1, 1);

/**
 * All setup functionalities.
 *
 * @since 1.0
 */
if( !function_exists( 'freedom_setup' ) ) :
function freedom_setup() {

	/*
	 * Make theme available for translation.
	 * Translations can be filed in the /languages/ directory.
	 */
	load_theme_textdomain( 'freedom', get_template_directory() . '/languages' );

	// Add default posts and comments RSS feed links to head
	add_theme_support( 'automatic-feed-links' );

	// This theme uses Featured Images (also known as post thumbnails) for per-post/per-page.
	add_theme_support( 'post-thumbnails' );

   // Supporting title tag via add_theme_support (since WordPress 4.1)
   add_theme_support( 'title-tag' );

	// Gutenberg layout support.
   add_theme_support( 'align-wide' );

   // Add support for Block Styles.
   add_theme_support('wp-block-styles');

   // Responsive embeds support.
   add_theme_support('responsive-embeds');

   // Adds the support for the Custom Logo introduced in WordPress 4.5
	add_theme_support( 'custom-logo', array(
		'flex-width' => true,
		'flex-height' => true,
	));

	// Registering navigation menu.
	register_nav_menu( 'primary', 'Primary Menu' );

	// Cropping the images to different sizes to be used in the theme
	add_image_size( 'featured', 660, 300, true );
	add_image_size( 'featured-home', 485, 400, true );

	// Setup the WordPress core custom background feature.
	add_theme_support( 'custom-background', apply_filters( 'freedom_custom_background_args', array(
		'default-color' => 'eaeaea'
	) ) );

	// Enable support for Post Formats.
	add_theme_support( 'post-formats', array( 'aside', 'image', 'video', 'quote', 'link', 'gallery', 'chat', 'audio', 'status' ) );

	// Adding excerpt option box for pages as well
	add_post_type_support( 'page', 'excerpt' );

	// Added WooCommerce support.
  add_theme_support( 'woocommerce' );
  add_theme_support( 'wc-product-gallery-zoom' );
  add_theme_support( 'wc-product-gallery-lightbox' );
  add_theme_support( 'wc-product-gallery-slider' );

   /*
    * Switch default core markup for search form, comment form, and comments
    * to output valid HTML5.
    */
   add_theme_support('html5', array(
      'search-form', 'comment-form', 'comment-list', 'gallery', 'caption',
   ));
}
endif;

add_action( 'after_setup_theme', 'freedom_options_migrate', 12 );
if ( !function_exists( 'freedom_options_migrate' ) ) :
   function freedom_options_migrate() {
      /**
       * Migrate Options Framework data to Customizer
       */
      if ( get_option( 'freedom_customizer_transfer' ) )
         return;
      // Set transfer as complete
      update_option( 'freedom_customizer_transfer', 1 );

      if ( false === ( $mods = get_option( "freedom" ) ) )
         return;

      $theme_options_freedom = array();
      $theme_mods_freedom = array();

      $theme_options_freedom = get_option('freedom');
      $theme_mods_freedom = get_theme_mods();

      foreach( $theme_options_freedom as $key => $value ) {
         $theme_mods_freedom[ $key ] = $value;
      }

      // checking the condition for child theme
      if ( is_child_theme() ) {
         $theme_mods_themename = get_option( 'stylesheet' );
         update_option( 'theme_mods_'.$theme_mods_themename, $theme_mods_freedom );
      }
      update_option( 'theme_mods_freedom', $theme_mods_freedom );

   }
endif;

/**
 * Define Directory Location Constants
 */
define( 'FREEDOM_PARENT_DIR', get_template_directory() );
define( 'FREEDOM_CHILD_DIR', get_stylesheet_directory() );

define( 'FREEDOM_INCLUDES_DIR', FREEDOM_PARENT_DIR. '/inc' );
define( 'FREEDOM_CSS_DIR', FREEDOM_PARENT_DIR . '/css' );
define( 'FREEDOM_JS_DIR', FREEDOM_PARENT_DIR . '/js' );
define( 'FREEDOM_LANGUAGES_DIR', FREEDOM_PARENT_DIR . '/languages' );

define( 'FREEDOM_ADMIN_DIR', FREEDOM_INCLUDES_DIR . '/admin' );
define( 'FREEDOM_WIDGETS_DIR', FREEDOM_INCLUDES_DIR . '/widgets' );

define( 'FREEDOM_ADMIN_IMAGES_DIR', FREEDOM_ADMIN_DIR . '/images' );
define( 'FREEDOM_ADMIN_JS_DIR', FREEDOM_ADMIN_DIR . '/js' );
define( 'FREEDOM_ADMIN_CSS_DIR', FREEDOM_ADMIN_DIR . '/css' );


/**
 * Define URL Location Constants
 */
define( 'FREEDOM_PARENT_URL', get_template_directory_uri() );
define( 'FREEDOM_CHILD_URL', get_stylesheet_directory_uri() );

define( 'FREEDOM_INCLUDES_URL', FREEDOM_PARENT_URL. '/inc' );
define( 'FREEDOM_CSS_URL', FREEDOM_PARENT_URL . '/css' );
define( 'FREEDOM_JS_URL', FREEDOM_PARENT_URL . '/js' );
define( 'FREEDOM_LANGUAGES_URL', FREEDOM_PARENT_URL . '/languages' );

define( 'FREEDOM_ADMIN_URL', FREEDOM_INCLUDES_URL . '/admin' );
define( 'FREEDOM_WIDGETS_URL', FREEDOM_INCLUDES_URL . '/widgets' );

define( 'FREEDOM_ADMIN_IMAGES_URL', FREEDOM_ADMIN_URL . '/images' );
define( 'FREEDOM_ADMIN_JS_URL', FREEDOM_ADMIN_URL . '/js' );
define( 'FREEDOM_ADMIN_CSS_URL', FREEDOM_ADMIN_URL . '/css' );

/** Load functions */
require_once( FREEDOM_INCLUDES_DIR . '/custom-header.php' );
require_once( FREEDOM_INCLUDES_DIR . '/functions.php' );
require_once( FREEDOM_INCLUDES_DIR . '/customizer.php' );
require_once( FREEDOM_INCLUDES_DIR . '/header-functions.php' );

require_once( FREEDOM_ADMIN_DIR . '/meta-boxes.php' );

/** Load Widgets and Widgetized Area */
require_once( FREEDOM_WIDGETS_DIR . '/widgets.php' );

/**
 * Assign the Freedom version to a variable.
 */
$freedom_theme = wp_get_theme( 'freedom' );

define( 'FREEDOM_THEME_VERSION', $freedom_theme->get( 'Version' ) );

/* Calling in the admin area for the Welcome Page */
if ( is_admin() ) {
	require get_template_directory() . '/inc/admin/class-freedom-admin.php';
	require get_template_directory() . '/inc/admin/class-freedom-notice.php';
	require get_template_directory() . '/inc/admin/class-freedom-welcome-notice.php';
	require get_template_directory() . '/inc/admin/class-freedom-upgrade-notice.php';
	require get_template_directory() . '/inc/admin/class-freedom-dashboard.php';
	require get_template_directory() . '/inc/admin/class-freedom-theme-review-notice.php';
}

/**
 * Load Jetpack compatibility file.
 */
if ( defined( 'JETPACK__VERSION' ) ) {
	require_once get_template_directory() . '/inc/jetpack.php';
}