mirror of
https://github.com/WordPress/WordPress.git
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0f98f3142c
The `rss_widget_feed_link` filter added in [52031] documents the parameter as a string, but recommends removing by returning false. Change the recommendation and documentation to make this consistent and update Twenty Twenty One to use the new recommended return value. Maintains documentation as possibly returning `false` for backwards compatibility. Props sabernhardt, Mista-Flo. Fixes #57594. Built from https://develop.svn.wordpress.org/trunk@55409 git-svn-id: http://core.svn.wordpress.org/trunk@54942 1a063a9b-81f0-0310-95a4-ce76da25c4cd
657 lines
19 KiB
PHP
657 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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/*
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* Make theme available for translation.
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* Translations can be filed in the /languages/ directory.
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* If you're building a theme based on Twenty Twenty-One, use a find and replace
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* to change 'twentytwentyone' to the name of your theme in all the template files.
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*/
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load_theme_textdomain( 'twentytwentyone', get_template_directory() . '/languages' );
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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 experimental link color control.
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add_theme_support( 'experimental-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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* Register 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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* Set 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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* Enqueue 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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* @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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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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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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true
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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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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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* Enqueue 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' ), 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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* Fix 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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|
*
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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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|
|
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// If SCRIPT_DEBUG is defined and true, print the unminified file.
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if ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) {
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|
echo '<script>';
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include get_template_directory() . '/assets/js/skip-link-focus-fix.js';
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|
echo '</script>';
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|
} else {
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|
// The following is minified via `npx terser --compress --mangle -- assets/js/skip-link-focus-fix.js`.
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|
?>
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|
<script>
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|
/(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);
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|
</script>
|
|
<?php
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|
}
|
|
}
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|
add_action( 'wp_print_footer_scripts', 'twenty_twenty_one_skip_link_focus_fix' );
|
|
|
|
/**
|
|
* Enqueue non-latin language styles.
|
|
*
|
|
* @since Twenty Twenty-One 1.0
|
|
*
|
|
* @return void
|
|
*/
|
|
function twenty_twenty_one_non_latin_languages() {
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|
$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();
|
|
|
|
/**
|
|
* Enqueue 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' ),
|
|
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' ),
|
|
true
|
|
);
|
|
}
|
|
add_action( 'customize_preview_init', 'twentytwentyone_customize_preview_init' );
|
|
|
|
/**
|
|
* Enqueue 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' ),
|
|
true
|
|
);
|
|
}
|
|
add_action( 'customize_controls_enqueue_scripts', 'twentytwentyone_customize_controls_enqueue_scripts' );
|
|
|
|
/**
|
|
* Calculate 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 ) . '"';
|
|
}
|
|
|
|
/**
|
|
* Add "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;
|