basic/functions.php at master · MisterDetour/basic · GitHub

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<?php

/**
 * Do some basic theme set up
 */
function basic_theme_setup() {
	remove_action( 'wp_head', 'rsd_link' );
	remove_action( 'wp_head', 'wlwmanifest_link' );
	remove_action( 'wp_head', 'wp_generator' );
	add_theme_support( 'automatic-feed-links' );
	add_theme_support( 'post-thumbnails' );
	add_theme_support( 'title-tag' );
	add_theme_support( 'html5', array( 'comment-list', 'comment-form', 'search-form', 'gallery', 'caption' ) );
	add_theme_support( 'align-wide' );
	add_theme_support( 'editor-styles' );
	add_editor_style( 'css/editor-style.css' );
}

add_action( 'init', 'basic_theme_setup' );

/**
 * Register navigation menus
 */
function register_basic_menus() {
	register_nav_menus(
		array(
			'header-menu' => 'Header Menu',
		)
	);
}

add_action( 'init', 'register_basic_menus' );

/**
 * Register dynamic sidebars
 */
function register_basic_sidebars() {
	if ( function_exists( 'register_sidebar' ) ) {
		register_sidebar( array(
	  		'name' => 'Primary Sidebar',
	  		'id' => 'primary-sidebar',
	  		'before_title' => '<h2 class="widgettitle">',
	  		'after_title' => '</h2>',
			'before_widget' => '<div id="%1$s" class="widget %2$s">',
	  		'after_widget' => '</div>',
		) );
	}
}

add_action( 'widgets_init', 'register_basic_sidebars' );

/**
 * Load Javascript & CSS files
 */
function basic_load_scripts() {
	wp_enqueue_style( 'style', get_stylesheet_directory_uri() . '/css/style.css' );

	wp_enqueue_script( 'custom', get_stylesheet_directory_uri() . '/js/custom.js', array(), false, true );
	if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
		wp_enqueue_script( 'comment-reply' );
	}
}

add_action( 'wp_enqueue_scripts', 'basic_load_scripts' );

/**
 * Format title element
 *
 * @param string $title Page title.
 * @param string $sep Page title separator.
 */
function basic_title( $title, $sep ) {
	global $page, $paged;

	if ( is_feed() ) return $title;

	// Add the blog name.
	$title .= get_bloginfo( 'name' );

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

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

	return $title;
}

add_filter( 'wp_title', 'basic_title', 10, 2 );

/**
 * Set html font size in admin, so REM units work
 */
function basic_admin_font_size() {
	global $current_screen;
	if( $current_screen->base != 'widgets'
		&& (
			$current_screen->base != 'post'
			|| !in_array( $current_screen->post_type, array( 'post', 'page' ) )
		)
	)
		return;
	?>
	<style>
		html { font-size: 62.5%; }
	</style>
	<?php
}

add_action( 'admin_head', 'basic_admin_font_size' );

/**
 * Custom image sizes attribute
 */
function basic_custom_responsive_image_sizes( $sizes, $size, $image_src ) {
	$width = $size[ 0 ];
	$half = ceil( $width / 2 );

	// If over 2000px, assume full width cover image
	if ( $width > 2000 ) {
		return '100vw';
	}

	// default
	return '(max-width: ' . $width . 'px) 100vw, ' . $half . 'px';
}

add_filter( 'wp_calculate_image_sizes', 'basic_custom_responsive_image_sizes', 10 , 3 );