themes-wordpress/pique/functions.php

<?php
/**
 * Pique functions and definitions
 *
 * @package Pique
 */

if ( ! function_exists( 'pique_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 for post thumbnails.
	 */
	function pique_setup() {
		/*
		 * Make theme available for translation.
		 * Translations can be filed in the /languages/ directory.
		 * If you're building a theme based on Pique, use a find and replace
		 * to change 'pique' to the name of your theme in all the template files
		 */
		load_theme_textdomain( 'pique', get_template_directory() . '/languages' );

		// Add default posts and comments RSS feed links to head.
		add_theme_support( 'automatic-feed-links' );

		/*
		 * Let WordPress manage the document title.
		 * By adding theme support, we declare that this theme does not use a
		 * hard-coded <title> tag in the document head, and expect WordPress to
		 * provide it for us.
		 */
		add_theme_support( 'title-tag' );

		/*
		 * Enable support for Post Thumbnails on posts and pages.
		 *
		 * @link http://codex.wordpress.org/Function_Reference/add_theme_support#Post_Thumbnails
		 */
		add_theme_support( 'post-thumbnails' );
		add_image_size( 'pique-hero', 1400, 1000, true );
		add_image_size( 'pique-square', 280, 280, true );
		add_image_size( 'pique-header', 1400, 400, true );
		add_image_size( 'pique-thumbnail-avatar', 100, 100, true );

		// This theme uses wp_nav_menu() in three locations.
		register_nav_menus(
			array(
				'primary'   => esc_html__( 'Primary Menu', 'pique' ),
				'secondary' => esc_html__( 'Secondary Menu', 'pique' ),
			)
		);

		/*
		 * Switch default core markup for search form, comment form, and comments
		 * to output valid HTML5.
		 */
		add_theme_support(
			'html5',
			array(
				'search-form',
				'comment-form',
				'comment-list',
				'gallery',
				'caption',
			)
		);

		/*
		 * Enable support for Post Formats.
		 * See http://codex.wordpress.org/Post_Formats
		 */
		add_theme_support(
			'post-formats',
			array(
				'aside',
				'chat',
				'gallery',
				'image',
				'video',
				'quote',
				'link',
				'status',
				'audio',
			)
		);

		// Set up the WordPress core custom background feature.
		add_theme_support(
			'custom-background',
			apply_filters(
				'pique_custom_background_args',
				array(
					'default-color' => 'ffffff',
					'default-image' => '',
				)
			)
		);

		// Add support for responsive embeds.
		add_theme_support( 'responsive-embeds' );

		// Add support for full and wide align images.
		add_theme_support( 'align-wide' );

		// Add support for custom color scheme.
		add_theme_support(
			'editor-color-palette',
			array(
				array(
					'name'  => esc_html__( 'Dark Blue', 'pique' ),
					'slug'  => 'dark-blue',
					'color' => '#293940',
				),
				array(
					'name'  => esc_html__( 'Medium Blue', 'pique' ),
					'slug'  => 'medium-blue',
					'color' => '#3c7993',
				),
				array(
					'name'  => esc_html__( 'Light Blue', 'pique' ),
					'slug'  => 'light-blue',
					'color' => '#83b6cc',
				),
				array(
					'name'  => esc_html__( 'Dark Brown', 'pique' ),
					'slug'  => 'dark-brown',
					'color' => '#2d2a26',
				),
				array(
					'name'  => esc_html__( 'Dark Gray', 'pique' ),
					'slug'  => 'dark-gray',
					'color' => '#5d5d5d',
				),
				array(
					'name'  => esc_html__( 'Medium Gray', 'pique' ),
					'slug'  => 'medium-gray',
					'color' => '#a9a9a9',
				),
				array(
					'name'  => esc_html__( 'White', 'pique' ),
					'slug'  => 'white',
					'color' => '#fff',
				),
			)
		);
	}
endif; // pique_setup
add_action( 'after_setup_theme', 'pique_setup' );

/**
 * Set the content width in pixels, based on the theme's design and stylesheet.
 *
 * Priority 0 to make it available to lower priority callbacks.
 *
 * @global int $content_width
 */
function pique_content_width() {
	$GLOBALS['content_width'] = apply_filters( 'pique_content_width', 775 );
}
add_action( 'after_setup_theme', 'pique_content_width', 0 );

/**
 * Use a larger content width for full-width pages.
 */
if ( ! function_exists( 'pique_content_width_tweak' ) ) :
	function pique_content_width_tweak() {
		if ( is_page_template( 'page-templates/template-full-width.php' ) ) :
			global $content_width;
			$content_width = 1400; /* pixels */
			endif;
	}
endif;
add_action( 'template_redirect', 'pique_content_width_tweak' );

/**
 * Register widget area.
 *
 * @link http://codex.wordpress.org/Function_Reference/register_sidebar
 */
function pique_widgets_init() {
	register_sidebar(
		array(
			'name'          => esc_html__( 'Sidebar', 'pique' ),
			'id'            => 'sidebar-1',
			'description'   => esc_html__( 'Add widgets here to appear in your sidebar', 'pique' ),
			'before_widget' => '<aside id="%1$s" class="widget %2$s">',
			'after_widget'  => '</aside>',
			'before_title'  => '<h2 class="widget-title">',
			'after_title'   => '</h2>',
		)
	);

	register_sidebar(
		array(
			'name'          => esc_html__( 'First Footer Widget Area', 'pique' ),
			'id'            => 'sidebar-2',
			'description'   => esc_html__( 'Add widgets here to appear in your footer', 'pique' ),
			'before_widget' => '<aside id="%1$s" class="widget %2$s">',
			'after_widget'  => '</aside>',
			'before_title'  => '<h2 class="widget-title">',
			'after_title'   => '</h2>',
		)
	);

	register_sidebar(
		array(
			'name'          => esc_html__( 'Second Footer Widget Area', 'pique' ),
			'id'            => 'sidebar-3',
			'description'   => esc_html__( 'Add widgets here to appear in your footer', 'pique' ),
			'before_widget' => '<aside id="%1$s" class="widget %2$s">',
			'after_widget'  => '</aside>',
			'before_title'  => '<h2 class="widget-title">',
			'after_title'   => '</h2>',
		)
	);

	register_sidebar(
		array(
			'name'          => esc_html__( 'Third Footer Widget Area', 'pique' ),
			'id'            => 'sidebar-4',
			'description'   => esc_html__( 'Add widgets here to appear in your footer', 'pique' ),
			'before_widget' => '<aside id="%1$s" class="widget %2$s">',
			'after_widget'  => '</aside>',
			'before_title'  => '<h2 class="widget-title">',
			'after_title'   => '</h2>',
		)
	);
}
add_action( 'widgets_init', 'pique_widgets_init' );

/**
 * Register Google Fonts
 */
function pique_fonts_url() {
	$fonts_url = '';

	/* Translators: If there are characters in your language that are not
	 * supported by Lora, translate this to 'off'. Do not translate
	 * into your own language.
	 */
	$lora = esc_html_x( 'on', 'Lora font: on or off', 'pique' );

	/* Translators: If there are characters in your language that are not
	 * supported by Karla, translate this to 'off'. Do not translate
	 * into your own language.
	 */
	$karla = esc_html_x( 'on', 'Karla font: on or off', 'pique' );

	if ( 'off' !== $lora || 'off' !== $karla ) :
		$font_families = array();

		if ( 'off' !== $lora ) {
			$font_families[] = 'Lora:400,700,400italic,700italic';
		}

		if ( 'off' !== $karla ) {
			$font_families[] = 'Karla:400,700,400italic,700italic';
		}

		/**
		 * A filter to enable child themes to add/change/omit font families.
		 * 
		 * @param array $font_families An array of font families to be imploded for the Google Font API
		 */
		$font_families = apply_filters( 'included_google_font_families', $font_families );

		$query_args = array(
			'family' => urlencode( implode( '|', $font_families ) ),
			'subset' => urlencode( 'latin,latin-ext' ),
		);

		$fonts_url = add_query_arg( $query_args, 'https://fonts.googleapis.com/css' );

	endif;

	return $fonts_url;
}

/**
 * Enqueue Google Fonts for custom headers
 */
function pique_admin_scripts() {
	wp_enqueue_style( 'pique-fonts', pique_fonts_url(), array(), null );
}
add_action( 'admin_print_styles-appearance_page_custom-header', 'pique_admin_scripts' );

/**
 * Enqueue scripts and styles.
 */
function pique_scripts() {
	wp_enqueue_style( 'pique-style', get_stylesheet_uri(), array(), null, 'screen' );
	wp_enqueue_style( 'pique-fonts', pique_fonts_url(), array(), null );

	// Block stylesheets
	wp_enqueue_style( 'pique-block-style', get_template_directory_uri() . '/assets/css/blocks.css', array( 'pique-style' ), '20181018' );

	// Background fix for iOS
	if ( is_front_page() || is_home() ) :
		wp_enqueue_script( 'pique-background-fix', get_template_directory_uri() . '/assets/js/background-fix.js', array( 'jquery' ), '20170302', true );
	endif;

	// Header and navigation
	wp_enqueue_script( 'waypoints', get_template_directory_uri() . '/assets/js/jquery.waypoints.min.js', array( 'jquery' ), '20150813', true );
	wp_enqueue_script( 'pique-navigation', get_template_directory_uri() . '/assets/js/navigation.js', array( 'jquery' ), '20120206', true );
	wp_enqueue_script( 'pique-skip-link-focus-fix', get_template_directory_uri() . '/assets/js/skip-link-focus-fix.js', array(), '20130115', true );
	wp_enqueue_script( 'pique-header', get_template_directory_uri() . '/assets/js/header.js', array( 'jquery', 'waypoints' ), '20151030', true );

	// Scroll effects (only loaded on front page)
	if ( pique_is_frontpage() ) :
		wp_enqueue_script( 'scrollTo', get_template_directory_uri() . '/assets/js/jquery.scrollTo.min.js', array( 'jquery' ), '20151030', true );
		wp_enqueue_script( 'pique-front-page', get_template_directory_uri() . '/assets/js/front-page.js', array( 'scrollTo', 'waypoints' ), '20151030', true );
	endif;

	// Font icons, because we're retro like that
	wp_enqueue_style( 'fontawesome', get_template_directory_uri() . '/fonts/font-awesome.min.css', array(), null );

	if ( wp_style_is( 'genericons', 'registered' ) ) {
		wp_enqueue_style( 'genericons', get_template_directory_uri() . '/fonts/genericons.css', array(), null );
	} else {
		wp_enqueue_style( 'genericons', get_template_directory_uri() . '/fonts/genericons.css', array(), null );
	}

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

/**
 * Enqueue editor styles for Gutenberg
 */
function pique_block_editor_styles() {
	// Block styles.
	wp_enqueue_style( 'pique-block-editor-style', get_template_directory_uri() . '/assets/css/editor-blocks.css' );

	// Font styles.
	wp_enqueue_style( 'pique-fonts', pique_fonts_url(), array(), null );
}
add_action( 'enqueue_block_editor_assets', 'pique_block_editor_styles' );

/**
 * Filter the front page template so it's bypassed entirely if the user selects
 * to display blog posts on their homepage instead of a static page.
 */
function pique_filter_front_page_template( $template ) {
	return is_home() ? '' : $template;
}
add_filter( 'frontpage_template', 'pique_filter_front_page_template' );

function pique_query_vars( $qvars ) {
	$qvars[] = 'pique_panel';
	return $qvars;
}
add_filter( 'query_vars', 'pique_query_vars', 10, 1 );

/**
 * Get random posts; a simple, more efficient approach.
 * MySQL queries that use ORDER BY RAND() can be pretty challenging and slow on large datasets.
 * Also it works better with heavy caching.
 */
function pique_get_random_posts( $number = 1, $post_type = 'post' ) {
	$query = new WP_Query(
		array(
			'posts_per_page' => 100,
			'fields'         => 'ids',
			'post_type'      => $post_type,
		)
	);

	$post_ids = $query->posts;

	shuffle( $post_ids );

	$post_ids = array_splice( $post_ids, 0, $number );

	$random_posts = get_posts(
		array(
			'post__in'    => $post_ids,
			'numberposts' => count( $post_ids ),
			'post_type'   => $post_type,
		)
	);

	return $random_posts;
}

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

/**
 * 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';

/**
 * Customizer additions.
 */
require get_template_directory() . '/inc/customizer.php';

/**
 * Load Jetpack compatibility file.
 */
require get_template_directory() . '/inc/jetpack.php';

/**
 * Load WooCommerce compatibility file.
 */
if ( class_exists( 'WooCommerce' ) ) {
	require get_template_directory() . '/inc/woocommerce.php';
}