functions.php

<?php
/**
 * Sparkling functions and definitions
 *
 * @package sparkling
 */

/**
 * Set the content width based on the theme's design and stylesheet.
 */
if ( ! isset( $content_width ) ) {
	$content_width = 648; /* pixels */
}

/**
 * Set the content width for full width pages with no sidebar.
 */
function sparkling_content_width() {
	if ( is_page_template( 'page-fullwidth.php' ) ) {
		global $content_width;
		$content_width = 1008; /* pixels */
	}
}

add_action( 'template_redirect', 'sparkling_content_width' );

if ( ! function_exists( 'sparkling_main_content_bootstrap_classes' ) ) :
	/**
	 * Add Bootstrap classes to the main-content-area wrapper.
	 */
	function sparkling_main_content_bootstrap_classes() {
		if ( is_page_template( 'page-fullwidth.php' ) ) {
			return 'col-sm-12 col-md-12';
		}

		return 'col-sm-12 col-md-8';
	}
endif; // sparkling_main_content_bootstrap_classes

if ( ! function_exists( 'sparkling_setup' ) ) :
	/**
	 * Sets up theme defaults and registers support for various WordPress features.
	 *
	 * Note that this function is hooked into the after_setup_theme hook, which
	 * runs before the init hook. The init hook is too late for some features, such
	 * as indicating support for post thumbnails.
	 */
	function sparkling_setup() {

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

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

		/**
		 * Enable support for Post Thumbnails on posts and pages.
		 *
		 * @link http://codex.wordpress.org/Function_Reference/add_theme_support#Post_Thumbnails
		 */
		add_theme_support( 'post-thumbnails' );

		add_image_size( 'sparkling-featured', 750, 410, true );
		add_image_size( 'sparkling-featured-fullwidth', 1140, 624, true );
		add_image_size( 'tab-small', 60, 60, true ); // Small Thumbnail

		// This theme uses wp_nav_menu() in one location.
		register_nav_menus(
			array(
				'primary'      => esc_html__( 'Primary Menu', 'sparkling' ),
				'footer-links' => esc_html__( 'Footer Links', 'sparkling' ), // secondary nav in footer
			)
		);

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

		// Setup the WordPress core custom background feature.
		add_theme_support(
			'custom-background', apply_filters(
				'sparkling_custom_background_args', array(
					'default-color' => 'F2F2F2',
					'default-image' => '',
				)
			)
		);

		// Enable support for HTML5 markup.
		add_theme_support(
			'html5', array(
				'comment-list',
				'search-form',
				'comment-form',
				'gallery',
				'caption',
			)
		);

		/*
		 * Let WordPress manage the document title.
		 * By adding theme support, we declare that this theme does not use a
		 * hard-coded <title> tag in the document head, and expect WordPress to
		 * provide it for us.
		 */
		add_theme_support( 'title-tag' );

		// Backwards compatibility for Custom CSS
		$custom_css = of_get_option( 'custom_css' );
		if ( $custom_css ) {
			$wp_custom_css_post = wp_get_custom_css_post();

			if ( $wp_custom_css_post ) {
				$wp_custom_css = $wp_custom_css_post->post_content . $custom_css;
			} else {
				$wp_custom_css = $custom_css;
			}

			wp_update_custom_css_post( $wp_custom_css );

			$options = get_option( 'sparkling' );
			unset( $options['custom_css'] );
			update_option( 'sparkling', $options );

		}

	}
endif; // sparkling_setup
add_action( 'after_setup_theme', 'sparkling_setup' );

/**
 * Register widgetized area and update sidebar with default widgets.
 */
function sparkling_widgets_init() {
	register_sidebar(
		array(
			'name'          => esc_html__( 'Sidebar', 'sparkling' ),
			'id'            => 'sidebar-1',
			'before_widget' => '<aside id="%1$s" class="widget %2$s">',
			'after_widget'  => '</aside>',
			'before_title'  => '<h3 class="widget-title">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'id'            => 'home-widget-1',
			'name'          => esc_html__( 'Homepage Widget 1', 'sparkling' ),
			'description'   => esc_html__( 'Displays on the Home Page', 'sparkling' ),
			'before_widget' => '<div id="%1$s" class="widget %2$s">',
			'after_widget'  => '</div>',
			'before_title'  => '<h3 class="widgettitle">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'id'            => 'home-widget-2',
			'name'          => esc_html__( 'Homepage Widget 2', 'sparkling' ),
			'description'   => esc_html__( 'Displays on the Home Page', 'sparkling' ),
			'before_widget' => '<div id="%1$s" class="widget %2$s">',
			'after_widget'  => '</div>',
			'before_title'  => '<h3 class="widgettitle">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'id'            => 'home-widget-3',
			'name'          => esc_html__( 'Homepage Widget 3', 'sparkling' ),
			'description'   => esc_html__( 'Displays on the Home Page', 'sparkling' ),
			'before_widget' => '<div id="%1$s" class="widget %2$s">',
			'after_widget'  => '</div>',
			'before_title'  => '<h3 class="widgettitle">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'id'            => 'footer-widget-1',
			'name'          => esc_html__( 'Footer Widget 1', 'sparkling' ),
			'description'   => esc_html__( 'Used for footer widget area', 'sparkling' ),
			'before_widget' => '<div id="%1$s" class="widget %2$s">',
			'after_widget'  => '</div>',
			'before_title'  => '<h3 class="widgettitle">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'id'            => 'footer-widget-2',
			'name'          => esc_html__( 'Footer Widget 2', 'sparkling' ),
			'description'   => esc_html__( 'Used for footer widget area', 'sparkling' ),
			'before_widget' => '<div id="%1$s" class="widget %2$s">',
			'after_widget'  => '</div>',
			'before_title'  => '<h3 class="widgettitle">',
			'after_title'   => '</h3>',
		)
	);

	register_sidebar(
		array(
			'id'            => 'footer-widget-3',
			'name'          => esc_html__( 'Footer Widget 3', 'sparkling' ),
			'description'   => esc_html__( 'Used for footer widget area', 'sparkling' ),
			'before_widget' => '<div id="%1$s" class="widget %2$s">',
			'after_widget'  => '</div>',
			'before_title'  => '<h3 class="widgettitle">',
			'after_title'   => '</h3>',
		)
	);

	register_widget( 'Sparkling_Social_Widget' );
	register_widget( 'Sparkling_Popular_Posts' );
	register_widget( 'Sparkling_Categories' );

}

add_action( 'widgets_init', 'sparkling_widgets_init' );


/* --------------------------------------------------------------
	   Theme Widgets
-------------------------------------------------------------- */
require_once( get_template_directory() . '/inc/widgets/class-sparkling-categories.php' );
require_once( get_template_directory() . '/inc/widgets/class-sparkling-popular-posts.php' );
require_once( get_template_directory() . '/inc/widgets/class-sparkling-social-widget.php' );


/**
 * This function removes inline styles set by WordPress gallery.
 */
function sparkling_remove_gallery_css( $css ) {
	return preg_replace( "#<style type='text/css'>(.*?)</style>#s", '', $css );
}

add_filter( 'gallery_style', 'sparkling_remove_gallery_css' );


function sparkling_archive_pages_title( $title ) {
	if ( is_tag() ) {
		$template = of_get_option( 'tag_title' );
		if ( empty( $template ) ) {
			return $title;
		} else {
			return sprintf( $template, single_tag_title( '', false ) );
		}
	} elseif ( is_category() ) {
		$template = of_get_option( 'category_title' );
		if ( empty( $template ) ) {
			return $title;
		} else {
			return sprintf( $template, single_cat_title( '', false ) );
		}
	} elseif ( is_author() ) {
		$template = of_get_option( 'author_title' );
		if ( empty( $template ) ) {
			return $title;
		} else {
			return sprintf( $template, get_the_author() );
		}
	} elseif ( is_year() ) {
		$template = of_get_option( 'year_title' );
		if ( empty( $template ) ) {
			return $title;
		} else {
			return sprintf( $template, get_the_date( _x( 'Y', 'yearly archives date format', 'sparkling' ) ) );
		}
	} elseif ( is_month() ) {
		$template = of_get_option( 'month_title' );
		if ( empty( $template ) ) {
			return $title;
		} else {
			return sprintf( $template, get_the_date( _x( 'F Y', 'monthly archives date format', 'sparkling' ) ) );
		}
	} elseif ( is_day() ) {
		$template = of_get_option( 'day_title' );
		if ( empty( $template ) ) {
			return $title;
		} else {
			return sprintf( $template, get_the_date( _x( 'F j, Y', 'daily archives date format', 'sparkling' ) ) );
		}
	} else {
		return $title;
	}
}

add_filter( 'get_the_archive_title', 'sparkling_archive_pages_title' );

/**
 * Enqueue scripts and styles.
 */
function sparkling_scripts() {

	// Add Bootstrap default CSS
	wp_enqueue_style( 'sparkling-bootstrap', get_template_directory_uri() . '/assets/css/bootstrap.min.css' );

	// Add Font Awesome stylesheet
	wp_enqueue_style( 'sparkling-icons', get_template_directory_uri() . '/assets/css/fontawesome-all.min.css', null, '5.1.1.', 'all' );

	// Add Google Fonts
	$font = of_get_option( 'main_body_typography' );
	if ( isset( $font['subset'] ) ) {
		wp_register_style( 'sparkling-fonts', '//fonts.googleapis.com/css?family=Open+Sans:400italic,400,600,700|Roboto+Slab:400,300,700&subset=' . $font['subset'] );
	} else {
		wp_register_style( 'sparkling-fonts', '//fonts.googleapis.com/css?family=Open+Sans:400italic,400,600,700|Roboto+Slab:400,300,700' );
	}

	wp_enqueue_style( 'sparkling-fonts' );

	// Add slider CSS only if is front page ans slider is enabled
	if ( ( is_home() || is_front_page() ) && of_get_option( 'sparkling_slider_checkbox' ) == 1 ) {
		wp_enqueue_style( 'flexslider-css', get_template_directory_uri() . '/assets/css/flexslider.css' );
	}

	// Add main theme stylesheet
	wp_enqueue_style( 'sparkling-style', get_stylesheet_uri(), null, '2.4.2', 'all' );

	// Add Bootstrap default JS
	wp_enqueue_script( 'sparkling-bootstrapjs', get_template_directory_uri() . '/assets/js/vendor/bootstrap.min.js', array( 'jquery' ) );

	if ( ( is_home() || is_front_page() ) && of_get_option( 'sparkling_slider_checkbox' ) == 1 ) {
		// Add slider JS only if is front page ans slider is enabled
		wp_enqueue_script( 'flexslider-js', get_template_directory_uri() . '/assets/js/vendor/flexslider.min.js', array( 'jquery' ), '20140222', true );
		// Flexslider customization
		wp_enqueue_script(
			'flexslider-customization', get_template_directory_uri() . '/assets/js/flexslider-custom.js', array(
				'jquery',
				'flexslider-js',
			), '20140716', true
		);
	}

	// Main theme related functions
	wp_enqueue_script( 'sparkling-functions', get_template_directory_uri() . '/assets/js/functions.js', array( 'jquery' ), '20180503', false );

	// This one is for accessibility
	wp_enqueue_script( 'sparkling-skip-link-focus-fix', get_template_directory_uri() . '/assets/js/skip-link-focus-fix.min.js', array(), '20140222', true );

	// Treaded comments
	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
		wp_enqueue_script( 'comment-reply' );
	}

	// Academicons
	if ( of_get_option( 'academicons' ) == 1 ) {
		wp_enqueue_style( 'academicons-css', get_template_directory_uri() . '/assets/css/academicons.min.css', null, '1.8.6', 'all' );
	}
}

add_action( 'wp_enqueue_scripts', 'sparkling_scripts' );

/**
 * Implement the Custom Header feature.
 */
require get_template_directory() . '/inc/custom-header.php';

/**
 * Custom template tags for this theme.
 */
require get_template_directory() . '/inc/template-tags.php';

/**
 * Custom functions that act independently of the theme templates.
 */
require get_template_directory() . '/inc/extras.php';

/**
 * Customizer additions.
 */
require get_template_directory() . '/inc/customizer.php';

/**
 * Metabox additions.
 */
require get_template_directory() . '/inc/metaboxes.php';

/**
 * Load Jetpack compatibility file.
 */
require get_template_directory() . '/inc/jetpack.php';

/**
 * Load custom nav walker
 */
require get_template_directory() . '/inc/class-wp-bootstrap-navwalker.php';

/**
 * Register Social Icon menu
 */
add_action( 'init', 'register_social_menu' );

function register_social_menu() {
	register_nav_menu( 'social-menu', _x( 'Social Menu', 'nav menu location', 'sparkling' ) );
}

/* Globals variables */
global $options_categories;
$options_categories     = array();
$options_categories_obj = get_categories();
foreach ( $options_categories_obj as $category ) {
	$options_categories[ $category->cat_ID ] = $category->cat_name;
}

global $site_layout;
$site_layout = array(
	'side-pull-left'  => esc_html__( 'Right Sidebar', 'sparkling' ),
	'side-pull-right' => esc_html__( 'Left Sidebar', 'sparkling' ),
	'no-sidebar'      => esc_html__( 'No Sidebar', 'sparkling' ),
	'full-width'      => esc_html__( 'Full Width', 'sparkling' ),
);

// Typography Options
global $typography_options;
$typography_options = array(
	'sizes'  => array(
		'6px'  => '6px',
		'10px' => '10px',
		'12px' => '12px',
		'14px' => '14px',
		'15px' => '15px',
		'16px' => '16px',
		'18px' => '18px',
		'20px' => '20px',
		'24px' => '24px',
		'28px' => '28px',
		'32px' => '32px',
		'36px' => '36px',
		'42px' => '42px',
		'48px' => '48px',
	),
	'faces'  => array(
		'arial'          => 'Arial',
		'verdana'        => 'Verdana, Geneva',
		'trebuchet'      => 'Trebuchet',
		'georgia'        => 'Georgia',
		'times'          => 'Times New Roman',
		'tahoma'         => 'Tahoma, Geneva',
		'Open Sans'      => 'Open Sans',
		'palatino'       => 'Palatino',
		'helvetica'      => 'Helvetica',
		'Helvetica Neue' => 'Helvetica Neue,Helvetica,Arial,sans-serif',
	),
	'styles' => array(
		'normal' => 'Normal',
		'bold'   => 'Bold',
	),
	'color'  => true,
);

/**
 * Helper function to return the theme option value.
 * If no value has been saved, it returns $default.
 * Needed because options are saved as serialized strings.
 *
 * Not in a class to support backwards compatibility in themes.
 */
if ( ! function_exists( 'of_get_option' ) ) :
	function of_get_option( $name, $default = false ) {

		$option_name = '';
		// Get option settings from database
		$options = get_option( 'sparkling' );

		// Return specific option
		if ( isset( $options[ $name ] ) ) {
			return $options[ $name ];
		}

		return $default;
	}
endif;

/* WooCommerce Support Declaration */
if ( ! function_exists( 'sparkling_woo_setup' ) ) :
	/**
	 * Sets up theme defaults and registers support for various WordPress features.
	 */
	function sparkling_woo_setup() {
		/*
		 * Enable support for WooCemmerce.
		*/
		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' );

	}
endif; // sparkling_woo_setup
add_action( 'after_setup_theme', 'sparkling_woo_setup' );

if ( ! function_exists( 'get_woocommerce_page_id' ) ) :
	/**
	 * Sets up theme defaults and registers support for various WordPress features.
	 */
	function get_woocommerce_page_id() {
		if ( is_shop() ) {
			return get_option( 'woocommerce_shop_page_id' );
		} elseif ( is_cart() ) {
			return get_option( 'woocommerce_cart_page_id' );
		} elseif ( is_checkout() ) {
			return get_option( 'woocommerce_checkout_page_id' );
		} elseif ( is_checkout_pay_page() ) {
			return get_option( 'woocommerce_pay_page_id' );
		} elseif ( is_account_page() ) {
			return get_option( 'woocommerce_myaccount_page_id' );
		}

		return false;
	}
endif;

/**
 * is_it_woocommerce_page - Returns true if on a page which uses WooCommerce templates (cart and checkout are standard pages with shortcodes and which are also included)
 */
if ( ! function_exists( 'is_it_woocommerce_page' ) ) :

	function is_it_woocommerce_page() {
		if ( function_exists( 'is_woocommerce' ) && is_woocommerce() ) {
			return true;
		}
		$woocommerce_keys = array(
			'woocommerce_shop_page_id',
			'woocommerce_terms_page_id',
			'woocommerce_cart_page_id',
			'woocommerce_checkout_page_id',
			'woocommerce_pay_page_id',
			'woocommerce_thanks_page_id',
			'woocommerce_myaccount_page_id',
			'woocommerce_edit_address_page_id',
			'woocommerce_view_order_page_id',
			'woocommerce_change_password_page_id',
			'woocommerce_logout_page_id',
			'woocommerce_lost_password_page_id',
		);
		foreach ( $woocommerce_keys as $wc_page_id ) {
			if ( get_the_ID() == get_option( $wc_page_id, 0 ) ) {
				return true;
			}
		}

		return false;
	}

endif;

/**
 * get_layout_class - Returns class name for layout i.e full-width, right-sidebar, left-sidebar etc )
 */
if ( ! function_exists( 'get_layout_class' ) ) :

	function get_layout_class() {
		global $post;
		if ( is_singular() && get_post_meta( $post->ID, 'site_layout', true ) && ! is_singular( array( 'product' ) ) ) {
			$layout_class = get_post_meta( $post->ID, 'site_layout', true );
		} elseif ( function_exists( 'is_woocommerce' ) && function_exists( 'is_it_woocommerce_page' ) && is_it_woocommerce_page() && ! is_search() ) {// Check for WooCommerce
			$page_id = ( is_product() ) ? $post->ID : get_woocommerce_page_id();

			if ( $page_id && get_post_meta( $page_id, 'site_layout', true ) ) {
				$layout_class = get_post_meta( $page_id, 'site_layout', true );
			} else {
				$layout_class = of_get_option( 'woo_site_layout', 'full-width' );
			}
		} else {
			$layout_class = of_get_option( 'site_layout', 'side-pull-left' );
		}

		return $layout_class;
	}

endif;

add_action( 'wp_ajax_sparkling_get_attachment_media', 'sparkling_get_attachment_image' );
function sparkling_get_attachment_image() {
	$id                = intval( $_POST['attachment_id'] );
	$response          = array();
	$response['id']    = $id;
	$response['image'] = wp_get_attachment_image( $id, 'medium' );
	echo json_encode( $response );
	die();
}

// Add epsilon framework
require get_template_directory() . '/inc/libraries/epsilon-framework/class-epsilon-autoloader.php';
$epsilon_framework_settings = array(
	'controls' => array( 'toggle' ), // array of controls to load
	'sections' => array( 'recommended-actions', 'pro' ), // array of sections to load
);
new Epsilon_Framework( $epsilon_framework_settings );

//Include Welcome Screen
require get_template_directory() . '/inc/welcome-screen/welcome-page-setup.php';