functions.php

<?php
/**
 * Capoeira Science functions and definitions
 *
 * Set up the theme and provides some helper functions, which are used in the
 * theme as custom template tags. Others are attached to action and filter
 * hooks in WordPress to change core functionality.
 *
 * When using a child theme you can override certain functions (those wrapped
 * in a function_exists() call) by defining them first in your child theme's
 * functions.php file. The child theme's functions.php file is included before
 * the parent theme's file, so the child theme functions would be used.
 *
 * @link https://codex.wordpress.org/Theme_Development
 * @link https://codex.wordpress.org/Child_Themes
 *
 * Functions that are not pluggable (not wrapped in function_exists()) are
 * instead attached to a filter or action hook.
 *
 * For more information on hooks, actions, and filters,
 * @link https://codex.wordpress.org/Plugin_API
 *
 * @package WordPress
 * @subpackage Capoeira Science Theme
 * @since Capoeira Science Theme 0.0
 */
/**
 * Set up the content width value based on the theme's design.
 *
 * @see capoeiratheme_content_width()
 *
 * @since Capoeira Science Theme 0.0
 */
if (!isset($content_width)) {
    $content_width = 474;
}

/**
 * Capoeira Theme only works in WordPress 3.6 or later.
 */
if (version_compare($GLOBALS['wp_version'], '3.6', '<')) {
    require get_template_directory() . '/inc/back-compat.php';
}

if (!function_exists('capoeiratheme_setup')) :

    /**
     * Capoeira Theme setup.
     *
     * Set 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 post thumbnails.
     *
     * @since Capoeira Science Theme 0.0
     */
    function capoeiratheme_setup()
    {

        /*
         * Make Capoeira Theme available for translation.
         *
         * Translations can be added to the /languages/ directory.
         * If you're building a theme based on Capoeira Theme, use a find and
         * replace to change 'capoeiratheme' to the name of your theme in all
         * template files.
         */
        load_theme_textdomain('capoeira-capoeira-theme', get_template_directory() . '/languages');

        // This theme styles the visual editor to resemble the theme style.
        add_editor_style(array('css/style.css', capoeiratheme_font_url(), 'genericons/genericons.css'));

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

        // Enable support for Post Thumbnails, and declare two sizes.
        add_theme_support('post-thumbnails');
        set_post_thumbnail_size(672, 372, true);
        add_image_size('capoeiratheme-full-width', 1038, 576, true);

        // This theme uses wp_nav_menu() in two locations.
        register_nav_menus(array(
            'primary' => __('Top primary menu', 'capoeiratheme'),
            'secondary' => __('Secondary menu in left sidebar', 'capoeiratheme'),
        ));

        /*
         * 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 https://codex.wordpress.org/Post_Formats
         */
        add_theme_support('post-formats', array(
            'aside', 'image', 'video', 'audio', 'quote', 'link', 'gallery',
        ));

        // This theme allows users to set a custom background.
        add_theme_support('custom-background', apply_filters('capoeiratheme_custom_background_args', array(
            'default-color' => 'f5f5f5',
        )));

        // Add support for featured content.
        add_theme_support('featured-content', array(
            'featured_content_filter' => 'capoeiratheme_get_featured_posts',
            'max_posts' => 6,
        ));

        // This theme uses its own gallery styles.
        add_filter('use_default_gallery_style', '__return_false');
    }
endif; // capoeiratheme_setup
add_action('after_setup_theme', 'capoeiratheme_setup');

/**
 * Adjust content_width value for image attachment template.
 *
 * @since Capoeira Science Theme 0.0
 */
function capoeiratheme_content_width()
{
    if (is_attachment() && wp_attachment_is_image()) {
        $GLOBALS['content_width'] = 810;
    }
}
add_action('template_redirect', 'capoeiratheme_content_width');

/**
 * Getter function for Featured Content Plugin.
 *
 * @since Capoeira Science Theme 0.0
 *
 * @return array An array of WP_Post objects.
 */
function capoeiratheme_get_featured_posts()
{
    /**
     * Filter the featured posts to return in Capoeira Theme.
     *
     * @since Capoeira Science Theme 0.0
     *
     * @param array|bool $posts Array of featured posts, otherwise false.
     */
    return apply_filters('capoeiratheme_get_featured_posts', array());
}

/**
 * A helper conditional function that returns a boolean value.
 *
 * @since Capoeira Science Theme 0.0
 *
 * @return bool Whether there are featured posts.
 */
function capoeiratheme_has_featured_posts()
{
    return !is_paged() && (bool) capoeiratheme_get_featured_posts();
}

/**
 * Register three Capoeira Theme widget areas.
 *
 * @since Capoeira Science Theme 0.0
 */
function capoeiratheme_widgets_init()
{
    require get_template_directory() . '/inc/widgets.php';
    register_widget('Twenty_Fourteen_Ephemera_Widget');

    register_sidebar(array(
        'name' => __('Primary Sidebar', 'capoeiratheme'),
        'id' => 'sidebar-1',
        'description' => __('Main sidebar that appears on the left.', 'capoeiratheme'),
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget' => '</aside>',
        'before_title' => '<h1 class="widget-title">',
        'after_title' => '</h1>',
    ));
    register_sidebar(array(
        'name' => __('Content Sidebar', 'capoeiratheme'),
        'id' => 'sidebar-2',
        'description' => __('Additional sidebar that appears on the right.', 'capoeiratheme'),
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget' => '</aside>',
        'before_title' => '<h1 class="widget-title">',
        'after_title' => '</h1>',
    ));
    register_sidebar(array(
        'name' => __('Footer Widget Area', 'capoeiratheme'),
        'id' => 'sidebar-3',
        'description' => __('Appears in the footer section of the site.', 'capoeiratheme'),
        'before_widget' => '<aside id="%1$s" class="widget %2$s">',
        'after_widget' => '</aside>',
        'before_title' => '<h1 class="widget-title">',
        'after_title' => '</h1>',
    ));
}
add_action('widgets_init', 'capoeiratheme_widgets_init');

/**
 * Register Lato Google font for Capoeira Theme.
 *
 * @since Capoeira Science Theme 0.0
 *
 * @return string
 */
function capoeiratheme_font_url()
{
    $font_url = '';
    /*
     * 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.
     */
    if ('off' !== _x('on', 'Lato font: on or off', 'capoeiratheme')) {
        $query_args = array(
            'family' => urlencode('Lato:300,400,700,900,300italic,400italic,700italic'),
            'subset' => urlencode('latin,latin-ext'),
        );
        $font_url = add_query_arg($query_args, '//fonts.googleapis.com/css');
    }

    return $font_url;
}

/**
 * Enqueue scripts and styles for the front end.
 *
 * @since Capoeira Science Theme 0.0
 */
function capoeira_scripts()
{
    // Add Lato font, used in the main stylesheet.
    //wp_enqueue_style( 'capoeira-font', capoeiratheme_font_url(), array(), null );
    // Load our main stylesheet.
    wp_enqueue_style('main-style', get_stylesheet_uri());
    wp_enqueue_style('bootstrap', get_template_directory_uri() . '/css/bootstrap.css', array());
    wp_enqueue_style('font-awesome', get_template_directory_uri() . '/css/font-awesome.css', array());
    wp_enqueue_style('masterslider', get_template_directory_uri() . '/css/masterslider.css', array());
    wp_enqueue_style('ms-fullscreen', get_template_directory_uri() . '/css/ms-fullscreen.css', array());
    wp_enqueue_style('color', get_template_directory_uri() . '/css/color.css', array());

    if (is_home()) {
        
    }

    // Load the Internet Explorer specific stylesheet.
    wp_enqueue_style('effects-capoeira-ie', get_template_directory_uri() . '/css/effect.css', array('main-style'), '20131205');
    wp_enqueue_style('animation-capoeira-ie', get_template_directory_uri() . '/css/animation.css', array('main-style'), '20131205');
    wp_style_add_data('effects-capoeira-ie', 'conditional', 'lt IE 9');
    wp_style_add_data('animation-capoeira-ie', 'conditional', 'lt IE 9');
    /**
      if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
      wp_enqueue_script( 'comment-reply' );
      }

      if ( is_singular() && wp_attachment_is_image() ) {
      wp_enqueue_script( 'capoeiratheme-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20130402' );
      }

      if ( is_active_sidebar( 'sidebar-3' ) ) {
      wp_enqueue_script( 'jquery-masonry' );
      }

     * */
    wp_enqueue_script('capoeiratheme-script', get_template_directory_uri() . '/js/functions.js', array('jquery'), '20150315', true);
}
add_action('wp_enqueue_scripts', 'capoeira_scripts');

/**
 * Enqueue Google fonts style to admin screen for custom header display.
 *
 * @since Capoeira Science Theme 0.0
 */
function capoeiratheme_admin_fonts()
{
    wp_enqueue_style('capoeiratheme-lato', capoeiratheme_font_url(), array(), null);
}
add_action('admin_print_scripts-appearance_page_custom-header', 'capoeiratheme_admin_fonts');

if (!function_exists('capoeiratheme_the_attached_image')) :

    /**
     * Print the attached image with a link to the next attached image.
     *
     * @since Capoeira Science Theme 0.0
     */
    function capoeiratheme_the_attached_image()
    {
        $post = get_post();
        /**
         * Filter the default Capoeira Theme attachment size.
         *
         * @since Capoeira Science Theme 0.0
         *
         * @param array $dimensions {
         *     An array of height and width dimensions.
         *
         *     @type int $height Height of the image in pixels. Default 810.
         *     @type int $width  Width of the image in pixels. Default 810.
         * }
         */
        $attachment_size = apply_filters('capoeiratheme_attachment_size', array(810, 810));
        $next_attachment_url = wp_get_attachment_url();

        /*
         * Grab the IDs of all the image attachments in a gallery so we can get the URL
         * of the next adjacent image in a gallery, or the first image (if we're
         * looking at the last image in a gallery), or, in a gallery of one, just the
         * link to that image file.
         */
        $attachment_ids = get_posts(array(
            'post_parent' => $post->post_parent,
            'fields' => 'ids',
            'numberposts' => -1,
            'post_status' => 'inherit',
            'post_type' => 'attachment',
            'post_mime_type' => 'image',
            'order' => 'ASC',
            'orderby' => 'menu_order ID',
            ));

        // If there is more than 1 attachment in a gallery...
        if (count($attachment_ids) > 1) {
            foreach ($attachment_ids as $attachment_id) {
                if ($attachment_id == $post->ID) {
                    $next_id = current($attachment_ids);
                    break;
                }
            }

            // get the URL of the next image attachment...
            if ($next_id) {
                $next_attachment_url = get_attachment_link($next_id);
            }

            // or get the URL of the first image attachment.
            else {
                $next_attachment_url = get_attachment_link(reset($attachment_ids));
            }
        }

        printf('<a href="%1$s" rel="attachment">%2$s</a>', esc_url($next_attachment_url), wp_get_attachment_image($post->ID, $attachment_size)
        );
    }
endif;

if (!function_exists('capoeiratheme_list_authors')) :

    /**
     * Print a list of all site contributors who published at least one post.
     *
     * @since Capoeira Science Theme 0.0
     */
    function capoeiratheme_list_authors()
    {
        $contributor_ids = get_users(array(
            'fields' => 'ID',
            'orderby' => 'post_count',
            'order' => 'DESC',
            'who' => 'authors',
            ));

        foreach ($contributor_ids as $contributor_id) :
            $post_count = count_user_posts($contributor_id);

            // Move on if user has not published a post (yet).
            if (!$post_count) {
                continue;
            }

            ?>

            <div class="contributor">
                <div class="contributor-info">
                    <div class="contributor-avatar"><?php echo get_avatar($contributor_id, 132);?></div>
                    <div class="contributor-summary">
                        <h2 class="contributor-name"><?php echo get_the_author_meta('display_name', $contributor_id);?></h2>
                        <p class="contributor-bio">
            <?php echo get_the_author_meta('description', $contributor_id);?>
                        </p>
                        <a class="button contributor-posts-link" href="<?php echo esc_url(get_author_posts_url($contributor_id));?>">
            <?php printf(_n('%d Article', '%d Articles', $post_count, 'capoeiratheme'), $post_count);?>
                        </a>
                    </div><!-- .contributor-summary -->
                </div><!-- .contributor-info -->
            </div><!-- .contributor -->

            <?php
        endforeach;
    }
endif;

/**
 * Extend the default WordPress body classes.
 *
 * Adds body classes to denote:
 * 1. Single or multiple authors.
 * 2. Presence of header image except in Multisite signup and activate pages.
 * 3. Index views.
 * 4. Full-width content layout.
 * 5. Presence of footer widgets.
 * 6. Single views.
 * 7. Featured content layout.
 *
 * @since Capoeira Science Theme 0.0
 *
 * @param array $classes A list of existing body class values.
 * @return array The filtered body class list.
 */
function capoeiratheme_body_classes($classes)
{
    if (is_multi_author()) {
        $classes[] = 'group-blog';
    }

    if (is_archive() || is_search() || is_home()) {
        $classes[] = 'list-view';
    }

    if ((!is_active_sidebar('sidebar-2') ) || is_page_template('page-templates/full-width.php') || is_page_template('page-templates/contributors.php') || is_attachment()) {
        $classes[] = 'full-width';
    }

    if (is_active_sidebar('sidebar-3')) {
        $classes[] = 'footer-widgets';
    }

    if (is_singular() && !is_front_page()) {
        $classes[] = 'singular';
    }

    if (is_front_page() && 'slider' == get_theme_mod('featured_content_layout')) {
        $classes[] = 'slider';
    } elseif (is_front_page()) {
        $classes[] = 'grid';
    }

    return $classes;
}
add_filter('body_class', 'capoeiratheme_body_classes');

/**
 * Extend the default WordPress post classes.
 *
 * Adds a post class to denote:
 * Non-password protected page with a post thumbnail.
 *
 * @since Capoeira Science Theme 0.0
 *
 * @param array $classes A list of existing post class values.
 * @return array The filtered post class list.
 */
function capoeiratheme_post_classes($classes)
{
    if (!post_password_required() && !is_attachment() && has_post_thumbnail()) {
        $classes[] = 'has-post-thumbnail';
    }

    return $classes;
}
add_filter('post_class', 'capoeiratheme_post_classes');

/**
 * Create a nicely formatted and more specific title element text for output
 * in head of document, based on current view.
 *
 * @since Capoeira Science Theme 0.0
 *
 * @global int $paged WordPress archive pagination page count.
 * @global int $page  WordPress paginated post page count.
 *
 * @param string $title Default title text for current view.
 * @param string $sep Optional separator.
 * @return string The filtered title.
 */
function capoeiratheme_wp_title($title, $sep)
{
    global $paged, $page;

    if (is_feed()) {
        return $title;
    }

    // Add the site name.
    $title .= get_bloginfo('name', 'display');

    // Add the site description for the home/front page.
    $site_description = get_bloginfo('description', 'display');
    if ($site_description && ( is_home() || is_front_page() )) {
        $title = "$title $sep $site_description";
    }

    // Add a page number if necessary.
    if (( $paged >= 2 || $page >= 2 ) && !is_404()) {
        $title = "$title $sep " . sprintf(__('Page %s', 'capoeiratheme'), max($paged, $page));
    }

    return $title;
}
add_filter('wp_title', 'capoeiratheme_wp_title', 10, 2);

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

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

// Add Customizer functionality.
require get_template_directory() . '/inc/customizer.php';

/*
 * Add Featured Content functionality.
 *
 * To overwrite in a plugin, define your own Featured_Content class on or
 * before the 'setup_theme' hook.
 */
if (!class_exists('Featured_Content') && 'plugins.php' !== $GLOBALS['pagenow']) {
    require get_template_directory() . '/inc/featured-content.php';
}