656 lines
19 KiB
PHP
656 lines
19 KiB
PHP
<?php
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/**
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* Functions and definitions
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*
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* @link https://developer.wordpress.org/themes/basics/theme-functions/
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*
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* @package WordPress
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* @subpackage Twenty_Twenty_One
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* @since Twenty Twenty-One 1.0
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*/
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// This theme requires WordPress 5.3 or later.
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if ( version_compare( $GLOBALS['wp_version'], '5.3', '<' ) ) {
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require get_template_directory() . '/inc/back-compat.php';
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}
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if ( ! function_exists( 'twenty_twenty_one_setup' ) ) {
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/**
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* Sets up theme defaults and registers support for various WordPress features.
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*
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* Note that this function is hooked into the after_setup_theme hook, which
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* runs before the init hook. The init hook is too late for some features, such
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* as indicating support for post thumbnails.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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function twenty_twenty_one_setup() {
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// Add default posts and comments RSS feed links to head.
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add_theme_support( 'automatic-feed-links' );
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/*
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* Let WordPress manage the document title.
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* This theme does not use a hard-coded <title> tag in the document head,
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* WordPress will provide it for us.
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*/
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add_theme_support( 'title-tag' );
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/**
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* Add post-formats support.
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*/
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add_theme_support(
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'post-formats',
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array(
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'link',
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'aside',
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'gallery',
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'image',
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'quote',
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'status',
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'video',
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'audio',
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'chat',
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)
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);
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/*
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* Enable support for Post Thumbnails on posts and pages.
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*
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* @link https://developer.wordpress.org/themes/functionality/featured-images-post-thumbnails/
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*/
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add_theme_support( 'post-thumbnails' );
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set_post_thumbnail_size( 1568, 9999 );
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register_nav_menus(
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array(
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'primary' => esc_html__( 'Primary menu', 'twentytwentyone' ),
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'footer' => esc_html__( 'Secondary menu', 'twentytwentyone' ),
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)
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);
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/*
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* Switch default core markup for search form, comment form, and comments
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* to output valid HTML5.
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*/
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add_theme_support(
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'html5',
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array(
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'comment-form',
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'comment-list',
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'gallery',
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'caption',
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'style',
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'script',
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'navigation-widgets',
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)
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);
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/*
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* Add support for core custom logo.
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*
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* @link https://codex.wordpress.org/Theme_Logo
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*/
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$logo_width = 300;
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$logo_height = 100;
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add_theme_support(
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'custom-logo',
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array(
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'height' => $logo_height,
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'width' => $logo_width,
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'flex-width' => true,
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'flex-height' => true,
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'unlink-homepage-logo' => true,
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)
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);
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// Add theme support for selective refresh for widgets.
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add_theme_support( 'customize-selective-refresh-widgets' );
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// Add support for Block Styles.
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add_theme_support( 'wp-block-styles' );
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// Add support for full and wide align images.
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add_theme_support( 'align-wide' );
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// Add support for editor styles.
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add_theme_support( 'editor-styles' );
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$background_color = get_theme_mod( 'background_color', 'D1E4DD' );
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if ( 127 > Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( $background_color ) ) {
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add_theme_support( 'dark-editor-style' );
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}
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$editor_stylesheet_path = './assets/css/style-editor.css';
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// Note, the is_IE global variable is defined by WordPress and is used
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// to detect if the current browser is internet explorer.
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global $is_IE;
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if ( $is_IE ) {
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$editor_stylesheet_path = './assets/css/ie-editor.css';
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}
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// Enqueue editor styles.
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add_editor_style( $editor_stylesheet_path );
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// Add custom editor font sizes.
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add_theme_support(
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'editor-font-sizes',
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array(
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array(
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'name' => esc_html__( 'Extra small', 'twentytwentyone' ),
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'shortName' => esc_html_x( 'XS', 'Font size', 'twentytwentyone' ),
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'size' => 16,
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'slug' => 'extra-small',
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),
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array(
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'name' => esc_html__( 'Small', 'twentytwentyone' ),
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'shortName' => esc_html_x( 'S', 'Font size', 'twentytwentyone' ),
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'size' => 18,
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'slug' => 'small',
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),
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array(
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'name' => esc_html__( 'Normal', 'twentytwentyone' ),
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'shortName' => esc_html_x( 'M', 'Font size', 'twentytwentyone' ),
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'size' => 20,
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'slug' => 'normal',
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),
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array(
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'name' => esc_html__( 'Large', 'twentytwentyone' ),
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'shortName' => esc_html_x( 'L', 'Font size', 'twentytwentyone' ),
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'size' => 24,
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'slug' => 'large',
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),
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array(
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'name' => esc_html__( 'Extra large', 'twentytwentyone' ),
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'shortName' => esc_html_x( 'XL', 'Font size', 'twentytwentyone' ),
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'size' => 40,
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'slug' => 'extra-large',
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),
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array(
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'name' => esc_html__( 'Huge', 'twentytwentyone' ),
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'shortName' => esc_html_x( 'XXL', 'Font size', 'twentytwentyone' ),
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'size' => 96,
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'slug' => 'huge',
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),
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array(
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'name' => esc_html__( 'Gigantic', 'twentytwentyone' ),
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'shortName' => esc_html_x( 'XXXL', 'Font size', 'twentytwentyone' ),
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'size' => 144,
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'slug' => 'gigantic',
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),
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)
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);
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// Custom background color.
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add_theme_support(
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'custom-background',
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array(
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'default-color' => 'd1e4dd',
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)
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);
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// Editor color palette.
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$black = '#000000';
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$dark_gray = '#28303D';
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$gray = '#39414D';
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$green = '#D1E4DD';
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$blue = '#D1DFE4';
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$purple = '#D1D1E4';
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$red = '#E4D1D1';
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$orange = '#E4DAD1';
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$yellow = '#EEEADD';
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$white = '#FFFFFF';
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add_theme_support(
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'editor-color-palette',
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array(
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array(
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'name' => esc_html__( 'Black', 'twentytwentyone' ),
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'slug' => 'black',
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'color' => $black,
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),
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array(
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'name' => esc_html__( 'Dark gray', 'twentytwentyone' ),
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'slug' => 'dark-gray',
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'color' => $dark_gray,
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),
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array(
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'name' => esc_html__( 'Gray', 'twentytwentyone' ),
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'slug' => 'gray',
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'color' => $gray,
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),
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array(
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'name' => esc_html__( 'Green', 'twentytwentyone' ),
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'slug' => 'green',
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'color' => $green,
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),
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array(
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'name' => esc_html__( 'Blue', 'twentytwentyone' ),
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'slug' => 'blue',
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'color' => $blue,
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),
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array(
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'name' => esc_html__( 'Purple', 'twentytwentyone' ),
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'slug' => 'purple',
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'color' => $purple,
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),
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array(
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'name' => esc_html__( 'Red', 'twentytwentyone' ),
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'slug' => 'red',
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'color' => $red,
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),
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array(
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'name' => esc_html__( 'Orange', 'twentytwentyone' ),
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'slug' => 'orange',
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'color' => $orange,
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),
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array(
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'name' => esc_html__( 'Yellow', 'twentytwentyone' ),
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'slug' => 'yellow',
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'color' => $yellow,
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),
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array(
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'name' => esc_html__( 'White', 'twentytwentyone' ),
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'slug' => 'white',
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'color' => $white,
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),
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)
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);
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add_theme_support(
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'editor-gradient-presets',
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array(
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array(
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'name' => esc_html__( 'Purple to yellow', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $purple . ' 0%, ' . $yellow . ' 100%)',
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'slug' => 'purple-to-yellow',
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),
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array(
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'name' => esc_html__( 'Yellow to purple', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $yellow . ' 0%, ' . $purple . ' 100%)',
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'slug' => 'yellow-to-purple',
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),
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array(
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'name' => esc_html__( 'Green to yellow', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $green . ' 0%, ' . $yellow . ' 100%)',
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'slug' => 'green-to-yellow',
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),
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array(
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'name' => esc_html__( 'Yellow to green', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $yellow . ' 0%, ' . $green . ' 100%)',
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'slug' => 'yellow-to-green',
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),
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array(
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'name' => esc_html__( 'Red to yellow', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $red . ' 0%, ' . $yellow . ' 100%)',
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'slug' => 'red-to-yellow',
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),
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array(
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'name' => esc_html__( 'Yellow to red', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $yellow . ' 0%, ' . $red . ' 100%)',
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'slug' => 'yellow-to-red',
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),
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array(
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'name' => esc_html__( 'Purple to red', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $purple . ' 0%, ' . $red . ' 100%)',
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'slug' => 'purple-to-red',
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),
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array(
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'name' => esc_html__( 'Red to purple', 'twentytwentyone' ),
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'gradient' => 'linear-gradient(160deg, ' . $red . ' 0%, ' . $purple . ' 100%)',
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'slug' => 'red-to-purple',
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),
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)
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);
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/*
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* Adds starter content to highlight the theme on fresh sites.
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* This is done conditionally to avoid loading the starter content on every
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* page load, as it is a one-off operation only needed once in the customizer.
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*/
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if ( is_customize_preview() ) {
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require get_template_directory() . '/inc/starter-content.php';
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add_theme_support( 'starter-content', twenty_twenty_one_get_starter_content() );
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}
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// Add support for responsive embedded content.
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add_theme_support( 'responsive-embeds' );
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// Add support for custom line height controls.
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add_theme_support( 'custom-line-height' );
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// Add support for link color control.
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add_theme_support( 'link-color' );
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// Add support for experimental cover block spacing.
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add_theme_support( 'custom-spacing' );
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// Add support for custom units.
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// This was removed in WordPress 5.6 but is still required to properly support WP 5.5.
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add_theme_support( 'custom-units' );
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// Remove feed icon link from legacy RSS widget.
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add_filter( 'rss_widget_feed_link', '__return_empty_string' );
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}
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}
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add_action( 'after_setup_theme', 'twenty_twenty_one_setup' );
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/**
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* Registers widget area.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @link https://developer.wordpress.org/themes/functionality/sidebars/#registering-a-sidebar
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*
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* @return void
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*/
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function twenty_twenty_one_widgets_init() {
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register_sidebar(
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array(
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'name' => esc_html__( 'Footer', 'twentytwentyone' ),
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'id' => 'sidebar-1',
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'description' => esc_html__( 'Add widgets here to appear in your footer.', 'twentytwentyone' ),
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'before_widget' => '<section id="%1$s" class="widget %2$s">',
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'after_widget' => '</section>',
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'before_title' => '<h2 class="widget-title">',
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'after_title' => '</h2>',
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)
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);
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}
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add_action( 'widgets_init', 'twenty_twenty_one_widgets_init' );
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/**
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* Sets the content width in pixels, based on the theme's design and stylesheet.
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*
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* Priority 0 to make it available to lower priority callbacks.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @global int $content_width Content width.
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*
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* @return void
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*/
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function twenty_twenty_one_content_width() {
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// This variable is intended to be overruled from themes.
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// Open WPCS issue: {@link https://github.com/WordPress-Coding-Standards/WordPress-Coding-Standards/issues/1043}.
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// phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals.NonPrefixedVariableFound
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$GLOBALS['content_width'] = apply_filters( 'twenty_twenty_one_content_width', 750 );
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}
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add_action( 'after_setup_theme', 'twenty_twenty_one_content_width', 0 );
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/**
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* Enqueues scripts and styles.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @global bool $is_IE
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* @global WP_Scripts $wp_scripts
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*
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* @return void
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*/
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function twenty_twenty_one_scripts() {
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// Note, the is_IE global variable is defined by WordPress and is used
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// to detect if the current browser is internet explorer.
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global $is_IE, $wp_scripts;
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if ( $is_IE ) {
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// If IE 11 or below, use a flattened stylesheet with static values replacing CSS Variables.
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wp_enqueue_style( 'twenty-twenty-one-style', get_template_directory_uri() . '/assets/css/ie.css', array(), wp_get_theme()->get( 'Version' ) );
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} else {
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// If not IE, use the standard stylesheet.
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wp_enqueue_style( 'twenty-twenty-one-style', get_template_directory_uri() . '/style.css', array(), wp_get_theme()->get( 'Version' ) );
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}
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// RTL styles.
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wp_style_add_data( 'twenty-twenty-one-style', 'rtl', 'replace' );
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// Print styles.
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wp_enqueue_style( 'twenty-twenty-one-print-style', get_template_directory_uri() . '/assets/css/print.css', array(), wp_get_theme()->get( 'Version' ), 'print' );
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// Threaded comment reply styles.
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if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
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wp_enqueue_script( 'comment-reply' );
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}
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// Register the IE11 polyfill file.
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wp_register_script(
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'twenty-twenty-one-ie11-polyfills-asset',
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get_template_directory_uri() . '/assets/js/polyfills.js',
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array(),
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wp_get_theme()->get( 'Version' ),
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array( 'in_footer' => true )
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);
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// Register the IE11 polyfill loader.
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wp_register_script(
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'twenty-twenty-one-ie11-polyfills',
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null,
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array(),
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wp_get_theme()->get( 'Version' ),
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array( 'in_footer' => true )
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);
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wp_add_inline_script(
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'twenty-twenty-one-ie11-polyfills',
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wp_get_script_polyfill(
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$wp_scripts,
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array(
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'Element.prototype.matches && Element.prototype.closest && window.NodeList && NodeList.prototype.forEach' => 'twenty-twenty-one-ie11-polyfills-asset',
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)
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)
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);
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// Main navigation scripts.
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if ( has_nav_menu( 'primary' ) ) {
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wp_enqueue_script(
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'twenty-twenty-one-primary-navigation-script',
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get_template_directory_uri() . '/assets/js/primary-navigation.js',
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array( 'twenty-twenty-one-ie11-polyfills' ),
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wp_get_theme()->get( 'Version' ),
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array(
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'in_footer' => false, // Because involves header.
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'strategy' => 'defer',
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)
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);
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}
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// Responsive embeds script.
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wp_enqueue_script(
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'twenty-twenty-one-responsive-embeds-script',
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get_template_directory_uri() . '/assets/js/responsive-embeds.js',
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array( 'twenty-twenty-one-ie11-polyfills' ),
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wp_get_theme()->get( 'Version' ),
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array( 'in_footer' => true )
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);
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}
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add_action( 'wp_enqueue_scripts', 'twenty_twenty_one_scripts' );
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/**
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* Enqueues block editor script.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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function twentytwentyone_block_editor_script() {
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wp_enqueue_script( 'twentytwentyone-editor', get_theme_file_uri( '/assets/js/editor.js' ), array( 'wp-blocks', 'wp-dom' ), wp_get_theme()->get( 'Version' ), array( 'in_footer' => true ) );
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}
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add_action( 'enqueue_block_editor_assets', 'twentytwentyone_block_editor_script' );
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/**
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* Fixes skip link focus in IE11.
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*
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* This does not enqueue the script because it is tiny and because it is only for IE11,
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* thus it does not warrant having an entire dedicated blocking script being loaded.
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*
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* @since Twenty Twenty-One 1.0
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* @deprecated Twenty Twenty-One 1.9 Removed from wp_print_footer_scripts action.
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*
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* @link https://git.io/vWdr2
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*/
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function twenty_twenty_one_skip_link_focus_fix() {
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// If SCRIPT_DEBUG is defined and true, print the unminified file.
|
|
if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) {
|
|
echo '<script>';
|
|
include get_template_directory() . '/assets/js/skip-link-focus-fix.js';
|
|
echo '</script>';
|
|
} else {
|
|
// The following is minified via `npx terser --compress --mangle -- assets/js/skip-link-focus-fix.js`.
|
|
?>
|
|
<script>
|
|
/(trident|msie)/i.test(navigator.userAgent)&&document.getElementById&&window.addEventListener&&window.addEventListener("hashchange",(function(){var t,e=location.hash.substring(1);/^[A-z0-9_-]+$/.test(e)&&(t=document.getElementById(e))&&(/^(?:a|select|input|button|textarea)$/i.test(t.tagName)||(t.tabIndex=-1),t.focus())}),!1);
|
|
</script>
|
|
<?php
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Enqueues non-latin language styles.
|
|
*
|
|
* @since Twenty Twenty-One 1.0
|
|
*
|
|
* @return void
|
|
*/
|
|
function twenty_twenty_one_non_latin_languages() {
|
|
$custom_css = twenty_twenty_one_get_non_latin_css( 'front-end' );
|
|
|
|
if ( $custom_css ) {
|
|
wp_add_inline_style( 'twenty-twenty-one-style', $custom_css );
|
|
}
|
|
}
|
|
add_action( 'wp_enqueue_scripts', 'twenty_twenty_one_non_latin_languages' );
|
|
|
|
// SVG Icons class.
|
|
require get_template_directory() . '/classes/class-twenty-twenty-one-svg-icons.php';
|
|
|
|
// Custom color classes.
|
|
require get_template_directory() . '/classes/class-twenty-twenty-one-custom-colors.php';
|
|
new Twenty_Twenty_One_Custom_Colors();
|
|
|
|
// Enhance the theme by hooking into WordPress.
|
|
require get_template_directory() . '/inc/template-functions.php';
|
|
|
|
// Menu functions and filters.
|
|
require get_template_directory() . '/inc/menu-functions.php';
|
|
|
|
// Custom template tags for the theme.
|
|
require get_template_directory() . '/inc/template-tags.php';
|
|
|
|
// Customizer additions.
|
|
require get_template_directory() . '/classes/class-twenty-twenty-one-customize.php';
|
|
new Twenty_Twenty_One_Customize();
|
|
|
|
// Block Patterns.
|
|
require get_template_directory() . '/inc/block-patterns.php';
|
|
|
|
// Block Styles.
|
|
require get_template_directory() . '/inc/block-styles.php';
|
|
|
|
// Dark Mode.
|
|
require_once get_template_directory() . '/classes/class-twenty-twenty-one-dark-mode.php';
|
|
new Twenty_Twenty_One_Dark_Mode();
|
|
|
|
/**
|
|
* Enqueues scripts for the customizer preview.
|
|
*
|
|
* @since Twenty Twenty-One 1.0
|
|
*
|
|
* @return void
|
|
*/
|
|
function twentytwentyone_customize_preview_init() {
|
|
wp_enqueue_script(
|
|
'twentytwentyone-customize-helpers',
|
|
get_theme_file_uri( '/assets/js/customize-helpers.js' ),
|
|
array(),
|
|
wp_get_theme()->get( 'Version' ),
|
|
array( 'in_footer' => true )
|
|
);
|
|
|
|
wp_enqueue_script(
|
|
'twentytwentyone-customize-preview',
|
|
get_theme_file_uri( '/assets/js/customize-preview.js' ),
|
|
array( 'customize-preview', 'customize-selective-refresh', 'jquery', 'twentytwentyone-customize-helpers' ),
|
|
wp_get_theme()->get( 'Version' ),
|
|
array( 'in_footer' => true )
|
|
);
|
|
}
|
|
add_action( 'customize_preview_init', 'twentytwentyone_customize_preview_init' );
|
|
|
|
/**
|
|
* Enqueues scripts for the customizer.
|
|
*
|
|
* @since Twenty Twenty-One 1.0
|
|
*
|
|
* @return void
|
|
*/
|
|
function twentytwentyone_customize_controls_enqueue_scripts() {
|
|
|
|
wp_enqueue_script(
|
|
'twentytwentyone-customize-helpers',
|
|
get_theme_file_uri( '/assets/js/customize-helpers.js' ),
|
|
array(),
|
|
wp_get_theme()->get( 'Version' ),
|
|
array( 'in_footer' => true )
|
|
);
|
|
}
|
|
add_action( 'customize_controls_enqueue_scripts', 'twentytwentyone_customize_controls_enqueue_scripts' );
|
|
|
|
/**
|
|
* Calculates classes for the main <html> element.
|
|
*
|
|
* @since Twenty Twenty-One 1.0
|
|
*
|
|
* @return void
|
|
*/
|
|
function twentytwentyone_the_html_classes() {
|
|
/**
|
|
* Filters the classes for the main <html> element.
|
|
*
|
|
* @since Twenty Twenty-One 1.0
|
|
*
|
|
* @param string The list of classes. Default empty string.
|
|
*/
|
|
$classes = apply_filters( 'twentytwentyone_html_classes', '' );
|
|
if ( ! $classes ) {
|
|
return;
|
|
}
|
|
echo 'class="' . esc_attr( $classes ) . '"';
|
|
}
|
|
|
|
/**
|
|
* Adds "is-IE" class to body if the user is on Internet Explorer.
|
|
*
|
|
* @since Twenty Twenty-One 1.0
|
|
*
|
|
* @return void
|
|
*/
|
|
function twentytwentyone_add_ie_class() {
|
|
?>
|
|
<script>
|
|
if ( -1 !== navigator.userAgent.indexOf( 'MSIE' ) || -1 !== navigator.appVersion.indexOf( 'Trident/' ) ) {
|
|
document.body.classList.add( 'is-IE' );
|
|
}
|
|
</script>
|
|
<?php
|
|
}
|
|
add_action( 'wp_footer', 'twentytwentyone_add_ie_class' );
|
|
|
|
if ( ! function_exists( 'wp_get_list_item_separator' ) ) :
|
|
/**
|
|
* Retrieves the list item separator based on the locale.
|
|
*
|
|
* Added for backward compatibility to support pre-6.0.0 WordPress versions.
|
|
*
|
|
* @since 6.0.0
|
|
*/
|
|
function wp_get_list_item_separator() {
|
|
/* translators: Used between list items, there is a space after the comma. */
|
|
return __( ', ', 'twentytwentyone' );
|
|
}
|
|
endif;
|