functions.php - Underscores theme (custom for Margins)

<?php
/**
 * Margins functions and definitions
 *
 * @package Margins
 * @since Margins 1.0
 */

/**
 * Set the content width based on the theme's design and stylesheet.
 *
 * @since Margins 1.0
 */
if ( ! isset( $content_width ) )
    $content_width = 640; /* pixels */

if ( ! function_exists( 'tdm_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 post thumbnails.
 *
 * @since Margins 1.0
 */
function tdm_setup() {

    /**
     * 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' );

    /**
     * Custom Theme Options
     */
    //require( get_template_directory() . '/inc/theme-options/theme-options.php' );

    /**
     * Make theme available for translation
     * Translations can be filed in the /languages/ directory
     * If you're building a theme based on Margins, use a find and replace
     * to change 'tdm' to the name of your theme in all the template files
     */
    load_theme_textdomain( 'tdm', 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
     */
    add_theme_support( 'post-thumbnails' );

    /**
     * This theme uses wp_nav_menu() in one location.
     */
    register_nav_menus( array(
        'primary' => __( 'Primary Menu', 'tdm' ),
    ) );

    /**
     * Add support for the Aside Post Formats
     */
    add_theme_support( 'post-formats', array( 'aside', ) );
}
endif; // tdm_setup
add_action( 'after_setup_theme', 'tdm_setup' );

/**
 * Register widgetized area and update sidebar with default widgets
 *
 * @since Margins 1.0
 */
function tdm_widgets_init() {
    register_sidebar( array(
        'name' => __( 'Home Meta Sidebar', 'tdm' ),
        'id' => 'sidebar-1',
        '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' => __( 'Home Sidebar', 'tdm' ),
        'id' => 'sidebar-2',
        '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', 'tdm_widgets_init' );

/**
 * Enqueue scripts and styles
 */
function tdm_scripts() {
    wp_enqueue_style( 'style', get_stylesheet_uri() );

    wp_enqueue_script( 'libraries', get_template_directory_uri() . '/js/libraries-min.js', 'jquery', false);

    wp_enqueue_script( 'scripts', get_template_directory_uri() . '/js/scripts-min.js', array( 'jquery' ), '20120206', true );

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

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

// Put post thumbnails into rss feed
function tdm_feed_post_thumbnail($content) {
    global $post;
    if(has_post_thumbnail($post->ID)) {
        $content = '' . $content;
    }
    return $content;
}
add_filter('the_excerpt_rss', 'tdm_feed_post_thumbnail');
add_filter('the_content_feed', 'tdm_feed_post_thumbnail');


//create a permalink after the excerpt
function tdm_replace_excerpt($content) {
    return str_replace('[...]',
        '<a class="readmore" href="'. get_permalink() .'">...</a>',
        $content
    );
}
add_filter('the_excerpt', 'tdm_replace_excerpt');


// Stop images getting wrapped up in p tags when they get dumped out with the_content() for easier theme styling
function tdm_remove_img_ptags($content){
    return preg_replace('/<p>\s*(<a .*>)?\s*(<img .* \/>)\s*(\/a>)?\s*<\/p>/iU', '\1\2\3', $content);
}
add_filter('the_content', 'tdm_remove_img_ptags');


// Call the google CDN version of jQuery for the frontend
// Make sure you use this with wp_enqueue_script('jquery'); in your header
function tdm_jquery_enqueue() {
    wp_deregister_script('jquery');
    wp_register_script('jquery', "http" . ($_SERVER['SERVER_PORT'] == 443 ? "s" : "") . "://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js", false, null);
    wp_enqueue_script('jquery');
}
if (!is_admin()) add_action("wp_enqueue_scripts", "tdm_jquery_enqueue", 11);


// Remove the version number of WP
// Warning - this info is also available in the readme.html file in your root directory - delete this file!
remove_action('wp_head', 'wp_generator');


// Obscure login screen error messages
function tdm_login_obscure(){ return '<strong>Sorry</strong>: Think you have gone wrong somewhere!';}
add_filter( 'login_errors', 'tdm_login_obscure' );

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

/**
 *  Inserting into the hook of the header only in Home the featured post (latest)
 *  Work on this at some point... Uncomment...
 */

    function feature_post(){

        if ( is_home() ){

             if ( have_posts() ) {
                $featured = new WP_Query( 'posts_per_page=1' );
                 while ( $featured->have_posts() ) : $featured->the_post(){

                    get_template_part( 'content', get_post_format() );


                }endwhile;

            }
        add_action('feature_post','before_header');
        }
    }