functions.php

<?php
/*
 *  Author: Jason Occhipinti (@occtopia) via Positive Space LLC (@positivespacegr)
 *  URL: www.positivespacegroup.com
 *  Theme Functions
 */

// --------------------------------------------------------------------------
// >> Theme Support
// --------------------------------------------------------------------------

if (function_exists( 'add_theme_support' )){

 // Add Menu Support
 add_theme_support( 'menus' );

 // Add Thumbnail Theme Support
 add_theme_support( 'post-thumbnails' );
 add_image_size( 'large', 800, 600, true ); // Large  Thumbnail Size
 add_image_size( 'medium', 400, '', true ); // Medium Thumbnail Size
 add_image_size( 'small', 250, '', true );  // Small  Thumbnail Size
 add_image_size( 'custom-size', 1500, 500, true ); // Custom Thumbnail Size call using the_post_thumbnail('custom-size');

 // Add Localization Support
 load_theme_textdomain( 'ren', get_template_directory() . '/languages' );
}

function register_my_menus() {
 register_nav_menus(
   array(
     'menu-primary' => __( 'Main Menu' ),         // Primary Navigation/Menu Area
     'menu-secondary' => __( 'Secondary Menu' ),  // Secondary Navigation/Menu Area
     'menu-tertiary' => __( 'Tertiary Menu' )     // Additional Menu Area
   )
 );
}

// --------------------------------------------------------------------------
// >> JavaScript
// --------------------------------------------------------------------------

// Load JavaScript
function ren_scripts() {
  if ( $GLOBALS['pagenow'] != 'wp-login.php' && !is_admin() ) {

    wp_deregister_script( 'jquery' ); // Deregister local jQuery
    wp_register_script( 'jquery', 'https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js', false, '3.1.0', true ); // Register jQuery CDN
    wp_enqueue_script( 'jquery' );

    // Enqueue custom code or plugins
    wp_register_script( 'ren-js', get_template_directory_uri() . '/js/min/custom.min.js', array( 'jquery' ), '1.0', true );
    wp_enqueue_script( 'ren-js' );

    // Enqueue init plugins/options
    wp_register_script( 'ren-init', get_template_directory_uri() . '/js/min/init.min.js', array( 'jquery' ), '1.0', true );
    wp_enqueue_script( 'ren-init' );
  }

  // Enqueue conditional JavaScript
  elseif ( is_page( 'pagename' ) ) { // If page matches page name
    wp_register_script( 'scriptname', get_template_directory_uri() . '/js/min/scriptname.min.js', array( 'jquery' ), '1.0' ); // Load Conditional JavaScript
    wp_enqueue_script( 'scriptname' );
  }
}

// Remove jQuery migrate script
function dequeue_jquery_migrate( &$scripts ) {
 	if( !is_admin() ) {
 		$scripts->remove( 'jquery' );
 		$scripts->add( 'jquery', false, array( 'jquery-core' ), '1.10.2' );
 	}
}

// --------------------------------------------------------------------------
// >> Stylesheets
// --------------------------------------------------------------------------

// Load Stylesheets
function ren_styles() {
  if ( $GLOBALS['pagenow'] != 'wp-login.php' && !is_admin() ) {

    wp_register_style( 'ren-styles', get_template_directory_uri() . '/style.css', array(), '1.0', 'all' );
    wp_enqueue_style( 'ren-styles' );

    // Uncomment to enqueue old IE-specific stylesheets...if you're into that sort of thing.
    // wp_enqueue_style( 'ie9-styles', get_template_directory_uri().'/css/min/ie9.min.css', array(), '1.0', 'all' );
    // wp_style_add_data( 'ie9-styles', 'conditional', 'lte IE 9' );
  }

  elseif ( is_page( 'pagename' ) ) {
     wp_register_style( 'stylename', get_template_directory_uri() . '/css/stylename.css', array(), '1.0', 'all' ); // Conditional script(s)
     wp_enqueue_style( 'stylename' );}
}

// Remove "text/css" from enqueued stylesheets
function ren_style_remove( $tag ) {
   return preg_replace( '~\s+type=["\'][^"\']++["\']~', '', $tag );
}

// Remove dreadful Wordpress Emojis *** Affects inline editing dialogue box at least up to 4.6.X ***
function disable_wp_emojicons() {

  // Emoji-related actions
  remove_action( 'admin_print_styles', 'print_emoji_styles' );
  remove_action( 'wp_head', 'print_emoji_detection_script', 7 );
  remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
  remove_action( 'wp_print_styles', 'print_emoji_styles' );
  remove_filter( 'wp_mail', 'wp_staticize_emoji_for_email' );
  remove_filter( 'the_content_feed', 'wp_staticize_emoji' );
  remove_filter( 'comment_text_rss', 'wp_staticize_emoji' );

  // Remove TinyMCE emojis
  add_filter( 'tiny_mce_plugins', 'disable_emojicons_tinymce' );

  // Remove emoji DNS prefetch
  add_filter( 'emoji_svg_url', '__return_false' );
}

// --------------------------------------------------------------------------
// >> Custom Post Types & Taxonomies
// --------------------------------------------------------------------------

// Add Custom Post Type
function create_post_type() {
  // register_taxonomy_for_object_type( 'category', 'yourTaxonomy' ); // Register Taxonomies for Category
  // register_taxonomy_for_object_type( 'post_tag', 'yourTaxonomy' );
  register_post_type('custom', // Register Custom Post Type
    array(
     'labels' => array(
     'name' => __('Custom Post Name', 'ren'), // Rename these to suit
     'singular_name' => __('Custom Post', 'ren'),
     'add_new' => __('Add New', 'ren'),
     'add_new_item' => __('Add New Custom Post', 'ren'),
     'edit' => __('Edit', 'ren'),
     'edit_item' => __('Edit Custom Post', 'ren'),
     'new_item' => __('New Custom Post', 'ren'),
     'view' => __('View', 'ren'),
     'view_item' => __('View Custom Post', 'ren'),
     'search_items' => __('Search Custom Posts', 'ren'),
     'not_found' => __('No Custom Posts found', 'ren'),
     'not_found_in_trash' => __('No Custom Posts found in Trash', 'ren')
    ),
   'hierarchical' => true, // Allows your posts to behave like Hierarchy Pages
   'has_archive' => true,
   'public' => true,
   'supports' => array(
     'title',
     'editor',
     'excerpt',
     'thumbnail'
    ),
     'can_export' => true //,  Allows export via Tools > Export
    )
  );
}

// Add Custom Taxonomy
add_action( 'init', 'build_taxonomies', 0 );

function build_taxonomies() {
  register_taxonomy(
    'taxonomy_type',
    'custom', // this is name of the custom post you'll use your taxonomy with
    array(
      'hierarchical' => true,
      'label' => 'Project Type',
      'query_var' => true,
      'rewrite' => true
    )
  );
}

// --------------------------------------------------------------------------
// >> Actions + Filters + ShortCodes
// --------------------------------------------------------------------------

// Add Actions
add_action( 'init', 'ren_scripts' ); // Add Custom Scripts to wp_head
add_action( 'init', 'ren_styles' ); // Add Custom Scripts to wp_head
add_action( 'init', 'disable_wp_emojicons' ); // Disable those dreadful Wordpress emojis
// add_action( 'admin_init', 'role_lower_admin_hide' );
add_action( 'init', 'register_my_menus' );
add_action( 'init', 'create_post_type'); // Add our Custom Post Type
add_action( 'wp_enqueue_styles', 'enqueue_my_styles_and_scripts' );

// Remove Actions
remove_action( 'wp_head', 'wp_generator' ); // Remove Generator Meta tag
remove_action( 'wp_head', 'wlwmanifest_link' ); // Remove Windows Live Writer Manifest Link
remove_action( 'wp_head', 'rsd_link' ); // Remove RSD link
remove_action( 'wp_head', 'rest_output_link_wp_head', 10 ); // Remove JSON REST API
remove_action( 'wp_head', 'wp_oembed_add_discovery_links', 10 ); // Remove oEmbed discovery links
remove_action( 'wp_head', 'wp_resource_hints', 2 ); // Remove ajax.googleapis.com DNS prefetch
remove_action( 'wp_head', 'rel_canonical');
remove_action( 'wp_head', 'wp_shortlink_wp_head', 10, 0);
remove_action( 'wp_head', 'feed_links', 2 );
remove_action( 'wp_head', 'feed_links_extra', 3 ); // Display the links to the extra feeds such as category feeds

// Add Filters
add_filter( 'style_loader_tag', 'ren_style_remove' ); // Remove 'text/css' from enqueued stylesheets
add_filter( 'show_admin_bar', '__return_false' ); // Hide Admin Bar
add_filter( 'body_class', 'ren_body_class', 10, 2 ); // Remove body classes and create white list
add_filter( 'nav_menu_css_class', 'ren_css_attributes_filter', 100, 1 ); // Remove navigation <li> injected classes
add_filter( 'script_loader_tag', 'clean_script_tag' ); // Remove type="text/javascript" from script tags
add_filter( 'style_loader_tag', 'remove_style_id' ); // Remove id from stylesheets
add_action( 'pre_ping', 'no_self_ping' );
add_filter( 'wp_default_scripts', 'dequeue_jquery_migrate' ); // Remove jQuery Migrate Script
add_filter( 'max_srcset_image_width', create_function( '', 'return 1;' ) );
add_filter( 'post_thumbnail_html', 'remove_width_attribute', 10 ); // Remove automatic width attributes on post thumbnails
add_filter( 'image_send_to_editor', 'remove_width_attribute', 10 ); // Remove automatic width attributes on images inside posts
add_filter( 'style_loader_tag', function( $tag ) {
  return str_replace( 'id="custom-stylesheet-css" ' ,'',  $tag );
});




// Remove width attributes
// Via Chris Coyer @ css-tricks.com/snippets/wordpress/remove-width-and-height-attributes-from-inserted-images/

function remove_width_attribute( $html ) {
  $html = preg_replace( '/(width|height)="\d*"\s/', "", $html );
  return $html;
}


// Filter: Remove body classes & create whitelist
// Via Geert on wordpress.stackexchange.com/questions/15850/remove-classes-from-body-class

function ren_body_class( $wp_classes, $extra_classes ) {

  // List of the only WP generated classes allowed
  $whitelist = array( 'portfolio', 'home', 'error404' );

  // Filter the body classes
  $wp_classes = array_intersect( $wp_classes, $whitelist );

  // Add the extra classes back untouched
  return array_merge( $wp_classes, (array) $extra_classes );
}


// Include "Bye Bye Pingback" - Removes pingback in head
// Via bryanwillis @ https://github.com/Wordpress-Development/bye-bye-pingback/

include('inc/bye-bye-pingback.inc.php');


// Remove text/javascript
// Via LeoNovais @ css-tricks.com/forums/topic/clean-up-script-tags-in-wordpress/

function clean_script_tag ($input) {
  $input = str_replace("type='text/javascript' ", '', $input);
  return str_replace("'", '"', $input);
}


// Remove id from stylesheets
// Via Fabian Lange @ blog.codecentric.de/en/2011/10/wordpress-and-mod_pagespeed-why-combine_css-does-not-work/

function remove_style_id($link) {
        return preg_replace("/id='.*-css'/", "", $link);
}







 ?>