functions.php

<?php
/**
 * Theme functions, definitions, filters and actions.
 *
 * @package Chuchadon
 */

/**
 * The current version of the theme.
 */
define( 'CHUCHADON_VERSION', '1.1.1' );

/**
 * The suffix to use for scripts.
 */
if ( ( defined( 'SCRIPT_DEBUG' ) && true === SCRIPT_DEBUG ) ) {
	define( 'CHUCHADON_SUFFIX', '' );
} else {
	define( 'CHUCHADON_SUFFIX', '.min' );
}

if ( ! function_exists( 'chuchadon_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 chuchadon_setup() {

	/*
	 * Make theme available for translation.
	 * Translations can be filed in the /languages/ directory.
	 * If you're building a theme based on Chuchadon, use a find and replace
	 * to change 'chuchadon' to the name of your theme in all the template files
	 */
	load_theme_textdomain( 'chuchadon', 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' );
	set_post_thumbnail_size( 1200, 675, true );
	
	/* Add custom image sizes. */
	add_image_size( 'chuchadon-single-post', 1200, 9999, false );

	/* This theme uses wp_nav_menu() in 4 locations. */
	register_nav_menus( array( 
		'top-left'      => esc_html_x( 'Top Left', 'nav menu location', 'chuchadon' ),
		'top-right'     => esc_html_x( 'Top right', 'nav menu location', 'chuchadon' ),
		'social'        => esc_html_x( 'Social links', 'nav menu location', 'chuchadon' ),
		'social-footer' => esc_html_x( 'Social links in footer', 'nav menu location', 'chuchadon' )
	) );
	
	/*
	 * 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'
	) );

	/*
	 * Enable support for Post Formats.
	 * See http://codex.wordpress.org/Post_Formats
	 */
	 
	add_theme_support( 'post-formats', array(
		'audio', 'video', 'link'
	) );
	
	/* Add support for WP title. */
	add_theme_support( 'title-tag' );
	
	/* Add support for theme layouts. */
	add_theme_support( 'theme-layouts', array( 'default' => '1c' ) );
	
	/* Add theme support for site logo. */
	add_theme_support( 'custom-logo', array(
		'height'     => 120,
		'flex-width' => true
	) );
	
	/* Add theme support for refresh widgets. */
	add_theme_support( 'customize-selective-refresh-widgets' );
	
	/* Add theme support for SportPress Plugin. */
	add_theme_support( 'sportspress' );
	
	/* Add theme support for breadcrumb trail. */
	add_theme_support( 'breadcrumb-trail' );
	
	/* Add editor styles. */
	add_editor_style( chuchadon_get_editor_styles() );
	
	/* Add excerpt to pages. */
	add_post_type_support( 'page', 'excerpt' );
	
}
endif; // chuchadon_setup
add_action( 'after_setup_theme', 'chuchadon_setup' );

/**
 * Set the content width in pixels, based on the theme's design and stylesheet.
 *
 * Priority 0 to make it available to lower priority callbacks.
 *
 * @global int $content_width
 */
function chuchadon_content_width() {
	$GLOBALS['content_width'] = apply_filters( 'chuchadon_content_width', 1200 );
}
add_action( 'after_setup_theme', 'chuchadon_content_width', 0 );

/**
 * Register widget area.
 *
 * @link http://codex.wordpress.org/Function_Reference/register_sidebar
 */
function chuchadon_widgets_init() {

	$sidebar_primary_args = array(
		'id'            => 'primary',
		'name'          => esc_html_x( 'Primary', 'sidebar', 'chuchadon' ),
		'description'   => esc_html__( 'The main sidebar. It is displayed on the right or left side of the page.', 'chuchadon' ),
		'before_widget' => '<section id="%1$s" class="widget %2$s">',
		'after_widget'  => '</section>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>'
	);
	
	$sidebar_header_args = array(
		'id'            => 'header',
		'name'          => esc_html_x( 'Header', 'sidebar', 'chuchadon' ),
		'description'   => esc_html__( 'A widget area located in the header of the site.', 'chuchadon' ),
		'before_widget' => '<section id="%1$s" class="widget %2$s">',
		'after_widget'  => '</section>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>'
	);
	
	$sidebar_subsidiary_args = array(
		'id'            => 'subsidiary',
		'name'          => esc_html_x( 'Subsidiary', 'sidebar', 'chuchadon' ),
		'description'   => esc_html__( 'A widget area located in the footer of the site.', 'chuchadon' ),
		'before_widget' => '<section id="%1$s" class="widget %2$s">',
		'after_widget'  => '</section>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>'
	);
	
	$sidebar_front_page_args = apply_filters( 'chuchadon_sidebar_front_page_args', array(
		'id'            => 'front-page',
		'name'          => esc_html_x( 'Front Page', 'sidebar', 'chuchadon' ),
		'description'   => esc_html__( 'A widget area located in the Front Page Template.', 'chuchadon' ),
		'before_widget' => '<section id="%1$s" class="widget %2$s">',
		'after_widget'  => '</section>',
		'before_title'  => '<h3 class="widget-title">',
		'after_title'   => '</h3>'
	) );
	
	/* Register sidebars. */
	register_sidebar( $sidebar_primary_args );
	register_sidebar( $sidebar_header_args );
	register_sidebar( $sidebar_subsidiary_args );
	register_sidebar( $sidebar_front_page_args );
	
}
add_action( 'widgets_init', 'chuchadon_widgets_init' );

/**
 * Return the Google font stylesheet URL
 */
function chuchadon_fonts_url() {

	$fonts_url = '';
	
	/* Translators: If there are characters in your language that are not
	 * supported by Open Sans, translate this to 'off'. Do not translate
	 * into your own language.
	 */
	$open_sans = _x( 'on', 'Open Sans font: on or off', 'chuchadon' );
	
	/* Translators: If there are characters in your language that are not
	 * supported by Lato, translate this to 'off'. Do not translate
	 * into your own language.
	 */
	$lato = _x( 'on', 'Lato font: on or off', 'chuchadon' );
	
	if ( 'off' !== $open_sans || 'off' !== $lato ) {
		
		$font_families = array();
		
		if ( 'off' !== $open_sans )
			$font_families[] = 'Open Sans:400,700,300,300italic,400italic,700italic';
		
		if ( 'off' !== $lato )
			$font_families[] = 'Dosis:400,600,700,800';
		
		$query_args = array(
			'family' => urlencode( implode( '|', $font_families ) ),
			'subset' => urlencode( 'latin,latin-ext' ),
		);
		
		$fonts_url = add_query_arg( $query_args, 'https://fonts.googleapis.com/css' );
	}
	
	return esc_url_raw( $fonts_url );
}

/**
 * Handles JavaScript detection.
 *
 * Adds a `js` class to the root `<html>` element when JavaScript is detected.
 *
 * @author    Twenty Sixteen
 * @copyright Automattic
 * @license  http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * @since 1.0.1
 */
function chuchadon_javascript_detection() {
	echo "<script>(function(html){html.className = html.className.replace(/\bno-js\b/,'js')})(document.documentElement);</script>\n";
}
add_action( 'wp_head', 'chuchadon_javascript_detection', 0 );

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

	/* Enqueue fonts. */
	wp_enqueue_style( 'chuchadon-fonts', chuchadon_fonts_url(), array(), null );
	
	/* Add Genericons font, used in the main stylesheet. */
	wp_enqueue_style( 'genericons', trailingslashit( get_template_directory_uri() ) . 'fonts/genericons/genericons/genericons' . CHUCHADON_SUFFIX . '.css', array(), '3.3' );
	
	/* Enqueue parent theme styles if using child theme. */
	if ( is_child_theme() ) {
		wp_enqueue_style( 'chuchadon-parent-style', trailingslashit( get_template_directory_uri() ) . 'style' . CHUCHADON_SUFFIX . '.css', array(), CHUCHADON_VERSION );
	}
	
	/* Enqueue active theme styles. */
	wp_enqueue_style( 'chuchadon-style', get_stylesheet_uri() );
	
	/* Enqueue responsive navigation. */
	wp_enqueue_script( 'chuchadon-navigation', get_template_directory_uri() . '/js/responsive-nav' . CHUCHADON_SUFFIX . '.js', array(), CHUCHADON_VERSION, true );
	
	/* Enqueue responsive navigation settings. */
	wp_enqueue_script( 'chuchadon-settings', trailingslashit( get_template_directory_uri() ) . 'js/functions' . CHUCHADON_SUFFIX . '.js', array( 'chuchadon-navigation', ), CHUCHADON_VERSION, true );
	wp_localize_script( 'chuchadon-settings', 'screenReaderTexts', array(
		'expandMenu'            => esc_html__( 'Menu', 'chuchadon' ),
		'collapseMenu'          => esc_html__( 'Menu', 'chuchadon' ),
		'expandSubMenu'         => '<span class="screen-reader-text">' . esc_html__( 'Open child menu', 'chuchadon' ) . '</span>',
		'collapseSubMenu'       => '<span class="screen-reader-text">' . esc_html__( 'Close child menu', 'chuchadon' ) . '</span>',
		'expandSearch'          => esc_html__( 'Search', 'chuchadon' ),
		'collapseSearch'        => esc_html__( 'Search', 'chuchadon' ),
		'expandSocialMenu'      => esc_html__( 'Social', 'chuchadon' ),
		'collapseSocialMenu'    => esc_html__( 'Social', 'chuchadon' ),
		'expandHeaderSidebar'   => esc_html__( 'Info', 'chuchadon' ),
		'collapseHeaderSidebar' => esc_html__( 'Info', 'chuchadon' )
	) );
	
	/* Enqueue comment reply. */
	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
		wp_enqueue_script( 'comment-reply' );
	}

}
add_action( 'wp_enqueue_scripts', 'chuchadon_scripts' );

/**
 * Function for deciding which pages should have a one-column layout.
 *
 * @since  1.0.0
 */
function chuchadon_one_column() {

	if ( is_page_template( 'pages/front-page.php' ) || is_page_template( 'pages/no-sidebar.php' ) || is_page_template( 'pages/child-pages.php' ) ) {
		add_filter( 'theme_mod_theme_layout', 'chuchadon_theme_layout_one_column' );
	}
	elseif ( is_attachment() && wp_attachment_is_image() ) {
		add_filter( 'theme_mod_theme_layout', 'chuchadon_theme_layout_one_column' );
	}
	
}
add_action( 'template_redirect', 'chuchadon_one_column' );

/**
 * Filters 'get_theme_layout' by returning 'layout-1c'.
 *
 * @since  1.0.0
 * @param  string $layout The layout of the current page.
 * @return string
 */
function chuchadon_theme_layout_one_column( $layout ) {
	return '1c';
}

/**
 * Change [...] to ... Read more.
 *
 * @since 1.0.0
 */
function chuchadon_excerpt_more() {

	/* Translators: The %s is the post title shown to screen readers. */
	$text = sprintf( __( 'Read more %s', 'chuchadon' ), '<span class="screen-reader-text">' . get_the_title() . '</span>' );
	$more = sprintf( '&hellip; <p class="chuchadon-read-more"><a href="%s" class="more-link">%s</a></p>', esc_url( get_permalink() ), $text );

	return $more;

}
add_filter( 'excerpt_more', 'chuchadon_excerpt_more' );

/**
 * Add body classes.
 *
 * @param  array  $classes  body classes.
 * @return array  $classes  body classes.
 * @since  1.0.0
 */
function chuchadon_extra_layout_classes( $classes ) {
	
	/* Add the '.custom-header-image' class if the user is using a custom header image. */
	if ( get_header_image() ) {
		$classes[] = 'custom-header-image';
	}
	
	/* Add the 'top-menu-active' class if the user is using top menu, left or right. */
	if ( has_nav_menu( 'top-left' ) || has_nav_menu( 'top-right' ) ) {
		$classes[] = 'top-menu-active';
	}
	
	/* Add global layout. */
	$classes[] = 'layout-' . sanitize_html_class( get_theme_mod( 'theme_layout', '1c' ) );
	
	/* Add 'has-content' class in Front Page Template if content is empty. */
	if ( is_page_template( 'pages/front-page.php' ) && '' != trim( get_post_field( 'post_content', get_the_ID() ) ) ) {
		$classes[] = 'has-content';
    }
	
	/* Adds a class of group-blog to blogs with more than 1 published author. */
	if ( is_multi_author() ) {
		$classes[] = 'group-blog';
	}
	
    return $classes;
	
}
add_filter( 'body_class', 'chuchadon_extra_layout_classes' );

/**
 * Callback function for adding editor styles. Use along with the add_editor_style() function.
 *
 * @author  Justin Tadlock, justintadlock.com
 * @link    http://themehybrid.com/themes/stargazer
 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * @since   1.0.0
 * @return  array
 */
function chuchadon_get_editor_styles() {

	/* Set up an array for the styles. */
	$editor_styles = array();

	/* Add the theme's editor styles. This also checks child theme's css/editor-style.css file. */
	$editor_styles[] = 'css/editor-style.css';
	
	/* Add genericons styles. */
	$editor_styles[] = trailingslashit( get_template_directory_uri() ) . 'fonts/genericons/genericons/genericons.css';
	
	/* Add theme fonts. */
	$editor_styles[] = chuchadon_fonts_url();

	/* Add the locale stylesheet. */
	$editor_styles[] = get_locale_stylesheet_uri();

	/* Return the styles. */
	return $editor_styles;
}

/**
 * Add featured image as background image to post navigation elements.
 *
 * @author    Twenty Fifteen
 * @copyright Automattic
 * @license  http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * @since 1.0.0
 * @see wp_add_inline_style()
 */
function chuchadon_post_nav_background() {
	
	if ( ! is_single() ) {
		return;
	}
	
	$previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
	$next     = get_adjacent_post( false, '', false );
	$css      = '';
	
	if ( is_attachment() && 'attachment' == $previous->post_type ) {
		return;
	}
	
	if ( $previous &&  has_post_thumbnail( $previous->ID ) ) {
		$prevthumb = wp_get_attachment_image_src( get_post_thumbnail_id( $previous->ID ), 'thumbnail' );
		$css .= '
			@media screen and (min-width: 400px) {
				.post-navigation .nav-previous { background-image: url(' . esc_url( $prevthumb[0] ) . '); }
				.post-navigation .nav-previous { background-repeat: no-repeat; }
				.post-navigation .nav-previous { background-position: left top; }
				.post-navigation .nav-previous a { padding-left: 170px; }
			}
		';
	}
	
	if ( $next && has_post_thumbnail( $next->ID ) ) {
		$nextthumb = wp_get_attachment_image_src( get_post_thumbnail_id( $next->ID ), 'thumbnail' );
		$css .= '
			@media screen and (min-width: 400px) {
				.post-navigation .nav-next { background-image: url(' . esc_url( $nextthumb[0] ) . '); }
				.post-navigation .nav-next { background-repeat: no-repeat; }
				.post-navigation .nav-next { background-position: right top; }
				.post-navigation .nav-next a { padding-right: 170px; }
			}
		';
	}
	
	if ( $previous &&  has_post_thumbnail( $previous->ID ) || $next && has_post_thumbnail( $next->ID ) ) {
		$css .= '
			@media screen and (min-width: 400px) {
				.post-navigation .nav-previous a, .post-navigation .nav-next a { min-height: 150px; }
			}
		';
	
	}
	
	wp_add_inline_style( 'chuchadon-style', $css );
	
}
add_action( 'wp_enqueue_scripts', 'chuchadon_post_nav_background' );

/**
 * Convert HEX to RGB.
 *
 * @author    Twenty Fifteen
 * @copyright Automattic
 * @license  http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * @since  1.0.0
 * @param  string $color The original color, in 3- or 6-digit hexadecimal form.
 * @return array Array containing RGB (red, green, and blue) values for the given
 *               HEX code, empty array otherwise.
 */
function chuchadon_hex2rgb( $color ) {
	$color = trim( $color, '#' );

	if ( strlen( $color ) == 3 ) {
		$r = hexdec( substr( $color, 0, 1 ).substr( $color, 0, 1 ) );
		$g = hexdec( substr( $color, 1, 1 ).substr( $color, 1, 1 ) );
		$b = hexdec( substr( $color, 2, 1 ).substr( $color, 2, 1 ) );
	} else if ( strlen( $color ) == 6 ) {
		$r = hexdec( substr( $color, 0, 2 ) );
		$g = hexdec( substr( $color, 2, 2 ) );
		$b = hexdec( substr( $color, 4, 2 ) );
	} else {
		return array();
	}

	return array( 'red' => $r, 'green' => $g, 'blue' => $b );
}

/**
 * Return the post URL.
 *
 * @uses get_url_in_content() to get the URL in the post meta (if it exists) or
 * the first link found in the post content.
 *
 * Falls back to the post permalink if no URL is found in the post.
 *
 * @copyright Twenty Thirteen Theme
 * @since 1.0.0
 *
 * @return string The Link format URL.
 */
function chuchadon_get_link_url() {
	$content = get_the_content();
	$has_url = get_url_in_content( $content );

	return ( $has_url ) ? $has_url : apply_filters( 'the_permalink', get_permalink() );
}

/**
 * Disable Subtitles in archive views.
 *
 * @since  1.0.0
 * @return boolean
 */
function chuchadon_mod_supported_views() {
    
	/* Ditch subtitles in archives. */
	if ( is_archive() ) {
        return false;
    }
	
}
add_filter( 'subtitle_view_supported', 'chuchadon_mod_supported_views' );

/**
* Check if Callout text are set on singular pages header.
*
* @since  1.0.0
* @return boolean
*/
function chuchadon_check_callout_output() {
	
	/* Get post meta for Callouts in singular pages. */
	$chuchadon_callout_text = get_post_meta( get_the_ID(), '_chuchadon_callout_text', true );
	$chuchadon_callout_url  = get_post_meta( get_the_ID(), '_chuchadon_callout_url', true );
	
	if( !empty( $chuchadon_callout_text ) && !empty( $chuchadon_callout_url ) && is_singular( apply_filters( 'chuchadon_when_to_show_callout_metaboxes', array( 'page', 'post', 'jetpack-portfolio', 'jetpack-testimonial' ) ) ) ) {
		return true;
	} else {
		return false;
	}

}

/**
 * Use a template for individual comment output.
 *
 * @param object $comment Comment to display.
 * @param int    $depth   Depth of comment.
 * @param array  $args    An array of arguments.
 *
 * @since 1.0.0
 */
function chuchadon_comment_callback( $comment, $args, $depth ) {
	include( locate_template( 'comment.php') );
}

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

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

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

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

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

/**
 * Load breadcrumb trail. Check that there is no Plugin version around.
 */
if( !function_exists( 'breadcrumb_trail' ) ) {
	require_once( get_template_directory() . '/inc/breadcrumb-trail.php' );
}

/**
 * Load Schema.org file.
 */
require_once( get_template_directory() . '/inc/schema.php' );

/**
 * Load media grabber file.
 */
require_once( get_template_directory() . '/inc/media-grabber.php' );

/**
 * Load meta boxes.
 */
require_once( get_template_directory() . '/inc/meta-boxes.php' );

/**
 * Load filters.
 */
require_once( get_template_directory() . '/inc/functions-filters.php' );