functions.php

<?php

// If the Timber plugin isn't activated, print a notice in the admin.
if ( ! class_exists( 'Timber' ) ) {
	add_action( 'admin_notices', function() {
			echo '<div class="error"><p>Timber not activated. Make sure you activate the plugin in <a href="' . esc_url( admin_url( 'plugins.php#timber' ) ) . '">' . esc_url( admin_url( 'plugins.php' ) ) . '</a></p></div>';
		} );
	return;
}


// Create our version of the TimberSite object
class StarterSite extends TimberSite {

	// This function applies some fundamental WordPress setup, as well as our functions to include custom post types and taxonomies.
	function __construct() {
		add_theme_support( 'post-formats',
			array(
				'image',
				'gallery',
				'video',
				'quote',
				'link'
		) );

		add_theme_support( 'post-thumbnails' );
		set_post_thumbnail_size( 400, 400, false );

		add_theme_support( 'menus' );
		add_filter( 'timber_context', array( $this, 'add_to_context' ) );
		add_filter( 'get_twig', array( $this, 'add_to_twig' ) );
		add_action( 'init', array( $this, 'register_post_types' ) );
		add_action( 'init', array( $this, 'register_taxonomies' ) );
		add_action( 'init', array( $this, 'register_menus' ) );
		add_action( 'init', array( $this, 'register_widgets' ) );
		parent::__construct();
	}


	// Abstracting long chunks of code.

	// The following included files only need to contain the arguments and register_whatever functions. They are applied to WordPress in these functions that are hooked to init above.

	// The point of having separate files is solely to save space in this file. Think of them as a standard PHP include or require.

	function register_post_types(){
		require('lib/custom-types.php');
	}

	function register_taxonomies(){
		require('lib/taxonomies.php');
	}

	function register_menus(){
		require('lib/menus.php');
	}

	function register_widgets(){
		require('lib/widgets.php');
	}


	// Access data site-wide.

	// This function adds data to the global context of your site. In less-jargon-y terms, any values in this function are available on any view of your website. Anything that occurs on every page should be added here.

	function add_to_context( $context ) {

		// Our menu occurs on every page, so we add it to the global context.
		$context['menu'] = new TimberMenu();
		if (!is_archive()) {
			$context['sidebar'] = Timber::get_sidebar('sidebar.php');
		}

		// This 'site' context below allows you to access main site information like the site title or description.
		$context['site'] = $this;

		// All Categories
		$context['cats'] = Timber::get_terms('category');

		// Posts page link
		$context['posts_page_link'] = get_permalink(get_option('page_for_posts' ));

		$context['logged_in'] = is_user_logged_in();

		return $context;
	}

	// Here you can add your own fuctions to Twig. Don't worry about this section if you don't come across a need for it.
	// See more here: http://twig.sensiolabs.org/doc/advanced.html
	function add_to_twig( $twig ) {
		$twig->addExtension( new Twig_Extension_StringLoader() );
		$twig->addFilter( 'myfoo', new Twig_Filter_Function( 'myfoo' ) );
		return $twig;
	}

}

new StarterSite();


/*
 *
 * My Functions (not from Timber)
 *
 */

// Enqueue scripts
function sd_scripts() {

	// Use jQuery from a CDN
	wp_deregister_script('jquery');
	wp_register_script('jquery', '//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js', array(), null, true);

	// Enqueue our stylesheet and JS file with a jQuery dependency.
	// Note that we aren't using WordPress' default style.css, and instead enqueueing the file of compiled Sass.

	// Use minified on staging and prod, unminified on dev.
	if (WP_ENV == 'development') {
		wp_enqueue_style( 'sd-styles', get_template_directory_uri() . '/assets/css/main.css', 1.0);
		wp_enqueue_script( 'sd-js', get_template_directory_uri() . '/assets/js/build/scripts.js', array('jquery'), '1.0.0', true );
	} else {
		wp_enqueue_style( 'sd-styles', get_template_directory_uri() . '/assets/css/main.min.css', 1.0);
		wp_enqueue_script( 'sd-js', get_template_directory_uri() . '/assets/js/build/scripts.min.js', array('jquery'), '1.0.0', true );
	}
}

add_action( 'wp_enqueue_scripts', 'sd_scripts' );


// Show notice on Dev. and Staging
function sd_env_notice() {
	if (WP_ENV != 'production') {
		echo '<p class="' . WP_ENV . ' env-notice">' . WP_ENV . '</p>';
	}
}
add_action('wp_head', 'sd_env_notice');


// Customize the editor style
// It's just the Bootstrap typography, but I like it. Got the idea from Roots.io.

function twc_editor_styles() {
  add_editor_style( 'assets/css/editor-style.css' );
}
add_action( 'after_setup_theme', 'twc_editor_styles' );




// Move excerpt box top top of post editor
// https://wpartisan.me/tutorials/wordpress-how-to-move-the-excerpt-meta-box-above-the-editor

// Removes the regular excerpt box. We're not getting rid of it, we're just moving it above the wysiwyg editor
function oz_remove_normal_excerpt() {
	remove_meta_box( 'postexcerpt', array('post', 'book', 'recipe'), 'normal' );
}
add_action( 'admin_menu' , 'oz_remove_normal_excerpt' );

// Add the excerpt meta box back in with a custom screen location
function oz_add_excerpt_meta_box( $post_type ) {
	if ( in_array( $post_type, array( 'post', 'recipe', 'book' ) ) ) {
		add_meta_box(
			'oz_postexcerpt',
			__( 'Summary', 'thetab-theme' ),
			'sd_post_excerpt_meta_box',
			$post_type,
			'after_title',
			'high'
		);
	}
}
add_action( 'add_meta_boxes', 'oz_add_excerpt_meta_box' );

function sd_post_excerpt_meta_box($post) {
?>
<label class="screen-reader-text" for="excerpt"><?php _e('Excerpt') ?></label><textarea rows="1" cols="40" name="excerpt" tabindex="6" id="excerpt"><?php echo $post->post_excerpt; // textarea_escaped ?></textarea>
<p><?php _e('A sentence or two summary of this post.'); ?></p>
<?php
}

// You can't actually add meta boxes after the title by default in WP so we're being cheeky. We've registered our own meta box position `after_title` onto which we've regiestered our new meta boxes and are now calling them in the `edit_form_after_title` hook which is run after the post tile box is displayed.
function oz_run_after_title_meta_boxes() {
	global $post, $wp_meta_boxes;
	# Output the `below_title` meta boxes:
	do_meta_boxes( get_current_screen(), 'after_title', $post );
}
add_action( 'edit_form_after_title', 'oz_run_after_title_meta_boxes' );






// ACF Functions

/*
	Add a 'Links Only' toolbar style for the following fields:
	- Text/Image Block: text_caption
	- Site-wide Settings: site_callout_text, site_footer_credits

	Credit: http://www.advancedcustomfields.com/resources/customize-the-wysiwyg-toolbars/
*/

function sd_acf_wysiwyg_toolbar( $toolbars ) {

	$toolbars['Links Only'] = array();
	$toolbars['Text Based'] = array();

	// Only one row of buttons
	$toolbars['Links Only'][1] = array('link', 'unlink' );
	$toolbars['Text Based'][1] = array('formatselect', 'bold', 'italic', 'link', 'unlink', 'bullist', 'numlist' );

	return $toolbars;
}
add_filter( 'acf/fields/wysiwyg/toolbars' , 'sd_acf_wysiwyg_toolbar'  );

// Add stylesheet with custom ACF styles
function sd_acf_admin_head() {
	?>
	<link rel="stylesheet" href="<?php echo get_template_directory_uri(); ?>/assets/css/acf.css">
	<?php
}
add_action('acf/input/admin_head', 'sd_acf_admin_head');