barebones/functions.php

<?php

/**
 * Custom functions / External files
 */

require_once 'includes/custom-functions.php';


/**
 * Add support for useful stuff
 */

if (function_exists('add_theme_support')) {
    // Add support for document title tag
    add_theme_support('title-tag');

    // Add Thumbnail Theme Support
    add_theme_support('post-thumbnails');
    // add_image_size( 'custom-size', 700, 200, true );

    // Add Support for post formats
    // add_theme_support( 'post-formats', ['post'] );
    // add_post_type_support( 'page', 'excerpt' );

    // Localisation Support
    load_theme_textdomain('barebones', get_template_directory() . '/languages');
}


/**
 * Hide admin bar
 */

 add_filter('show_admin_bar', '__return_false');


/**
 * Remove junk
 */

remove_action('wp_head', 'rsd_link');
remove_action('wp_head', 'wlwmanifest_link');
remove_action('wp_head', 'wp_generator');
remove_action('wp_head', 'start_post_rel_link');
remove_action('wp_head', 'index_rel_link');
remove_action('wp_head', 'adjacent_posts_rel_link_wp_head');
remove_action('wp_head', 'wp_shortlink_wp_head', 10, 0);
remove_action('wp_head', 'print_emoji_detection_script', 7);
remove_action('wp_print_styles', 'print_emoji_styles');


/**
 * Remove comments feed
 *
 * @return void
 */

function barebones_post_comments_feed_link() {
    return;
}

add_filter('post_comments_feed_link', 'barebones_post_comments_feed_link');


/**
 * Enqueue scripts
 */

function barebones_enqueue_scripts() {
    // wp_enqueue_style( 'fonts', '//fonts.googleapis.com/css?family=Font+Family' );
    // wp_enqueue_style( 'icons', '//use.fontawesome.com/releases/v5.0.10/css/all.css' );
    wp_enqueue_script('scripts', get_stylesheet_directory_uri() . '/js/scripts.min.js?' . filemtime(get_stylesheet_directory() . '/js/scripts.min.js'), [], null, true);
}

add_action('wp_enqueue_scripts', 'barebones_enqueue_scripts');


/**
 * Register nav menus
 *
 * @return void
 */

function barebones_register_nav_menus() {
    register_nav_menus([
        'header' => 'Header'
    ]);
}

add_action('after_setup_theme', 'barebones_register_nav_menus', 0);


/**
 * Nav menu args
 *
 * @param array $args
 * @return void
 */

function barebones_nav_menu_args( $args ) {
    $args['container'] = false;
    $args['container_class'] = false;
    $args['menu_id'] = false;
    $args['items_wrap'] = '<ul class="%2$s">%3$s</ul>';

    return $args;
}

add_filter('wp_nav_menu_args', 'barebones_nav_menu_args');


/**
 * Button Shortcode
 *
 * @param array $atts
 * @param string $content
 * @return void
 */

function barebones_button_shortcode( $atts, $content = null ) {
    $atts['class'] = isset($atts['class']) ? $atts['class'] : 'btn';
    return '<a class="' . $atts['class'] . '" href="' . $atts['link'] . '">' . $content . '</a>';
}

add_shortcode('button', 'barebones_button_shortcode');


/**
 * TinyMCE
 *
 * @param array $buttons
 * @return void
 */

function barebones_mce_buttons_2( $buttons ) {
    array_unshift($buttons, 'styleselect');
    $buttons[] = 'hr';

    return $buttons;
}

add_filter('mce_buttons_2', 'barebones_mce_buttons_2');


/**
 * TinyMCE styling
 *
 * @param array $settings
 * @return void
 */

function barebones_tiny_mce_before_init( $settings ) {
    $style_formats = [
        // [
        //     'title'    => '',
        //     'selector' => '',
        //     'classes'  => ''
        // ],
        // [
        //     'title' => 'Buttons',
        //     'items' => [
        //         [
        //             'title'    => 'Primary',
        //             'selector' => 'a',
        //             'classes'  => 'btn btn--primary'
        //         ],
        //         [
        //             'title'    => 'Secondary',
        //             'selector' => 'a',
        //             'classes'  => 'btn btn--secondary'
        //         ]
        //     ]
        // ]
    ];

    $settings['style_formats'] = json_encode($style_formats);
    $settings['style_formats_merge'] = true;

    return $settings;
}

add_filter('tiny_mce_before_init', 'barebones_tiny_mce_before_init');


/**
 * Get post thumbnail url
 *
 * @param string $size
 * @param boolean $post_id
 * @param boolean $icon
 * @return void
 */

function get_post_thumbnail_url( $size = 'full', $post_id = false, $icon = false ) {
    if ( ! $post_id ) {
        $post_id = get_the_ID();
    }

    $thumb_url_array = wp_get_attachment_image_src(
        get_post_thumbnail_id( $post_id ), $size, $icon
    );
    return $thumb_url_array[0];
}


/**
 * Add Front Page edit link to admin Pages menu
 */

function front_page_on_pages_menu() {
    global $submenu;
    if ( get_option( 'page_on_front' ) ) {
        $submenu['edit.php?post_type=page'][501] = array( 
            'Front Page', 
            'manage_options', 
            get_edit_post_link( get_option( 'page_on_front' ) )
        ); 
    }
}

add_action( 'admin_menu' , 'front_page_on_pages_menu' );