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c0dddba726
This changeset bundles the Google Fonts used by Twenty Sixteen locally in the theme folder, instead of loading them from Google servers. Existing font stylesheet handles are maintained for backward compatibilily. Props garrett-eclipse, kjellr, ocean90, SergeyBiryukov, westonruter, luminuu, audrasjb, jhoffmann, jffng, paapst, cbirdsong, webcommsat, kau-boy, MatthiasReinholz, sabernhardt, hellofromTonya, JeffPaul, davidbaumwald, desrosj, bedas, poena, costdev, mukesh27, azaozz, aristath. See #55985. Built from https://develop.svn.wordpress.org/trunk@55267 git-svn-id: http://core.svn.wordpress.org/trunk@54800 1a063a9b-81f0-0310-95a4-ce76da25c4cd
601 lines
19 KiB
PHP
601 lines
19 KiB
PHP
<?php
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/**
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* Twenty Sixteen functions and definitions
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*
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* Set up the theme and provides some helper functions, which are used in the
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* theme as custom template tags. Others are attached to action and filter
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* hooks in WordPress to change core functionality.
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*
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* When using a child theme you can override certain functions (those wrapped
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* in a function_exists() call) by defining them first in your child theme's
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* functions.php file. The child theme's functions.php file is included before
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* the parent theme's file, so the child theme functions would be used.
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*
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* @link https://developer.wordpress.org/themes/basics/theme-functions/
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* @link https://developer.wordpress.org/themes/advanced-topics/child-themes/
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*
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* Functions that are not pluggable (not wrapped in function_exists()) are
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* instead attached to a filter or action hook.
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*
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* For more information on hooks, actions, and filters,
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* {@link https://developer.wordpress.org/plugins/}
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*
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* @package WordPress
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* @subpackage Twenty_Sixteen
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* @since Twenty Sixteen 1.0
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*/
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/**
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* Twenty Sixteen only works in WordPress 4.4 or later.
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*/
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if ( version_compare( $GLOBALS['wp_version'], '4.4-alpha', '<' ) ) {
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require get_template_directory() . '/inc/back-compat.php';
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}
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if ( ! function_exists( 'twentysixteen_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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* Create your own twentysixteen_setup() function to override in a child theme.
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*
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* @since Twenty Sixteen 1.0
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*/
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function twentysixteen_setup() {
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/*
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* Make theme available for translation.
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* Translations can be filed at WordPress.org. See: https://translate.wordpress.org/projects/wp-themes/twentysixteen
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* If you're building a theme based on Twenty Sixteen, use a find and replace
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* to change 'twentysixteen' to the name of your theme in all the template files
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*/
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load_theme_textdomain( 'twentysixteen' );
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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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* By adding theme support, we declare that this theme does not use a
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* hard-coded <title> tag in the document head, and expect WordPress to
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* 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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* Enable support for custom logo.
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*
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* @since Twenty Sixteen 1.2
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*/
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add_theme_support(
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'custom-logo',
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array(
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'height' => 240,
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'width' => 240,
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'flex-height' => true,
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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/reference/functions/add_theme_support/#post-thumbnails
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*/
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add_theme_support( 'post-thumbnails' );
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set_post_thumbnail_size( 1200, 9999 );
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// This theme uses wp_nav_menu() in two locations.
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register_nav_menus(
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array(
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'primary' => __( 'Primary Menu', 'twentysixteen' ),
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'social' => __( 'Social Links Menu', 'twentysixteen' ),
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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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'search-form',
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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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'script',
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'style',
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'navigation-widgets',
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)
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);
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/*
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* Enable support for Post Formats.
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*
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* See: https://wordpress.org/support/article/post-formats/
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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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'aside',
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'image',
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'video',
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'quote',
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'link',
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'gallery',
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'status',
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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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* This theme styles the visual editor to resemble the theme style,
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* specifically font, colors, icons, and column width. When fonts are
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* self-hosted, the theme directory needs to be removed first.
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*/
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$font_stylesheet = str_replace(
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array( get_template_directory_uri() . '/', get_stylesheet_directory_uri() . '/' ),
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'',
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twentysixteen_fonts_url()
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);
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add_editor_style( array( 'css/editor-style.css', $font_stylesheet ) );
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// Load regular editor styles into the new block-based editor.
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add_theme_support( 'editor-styles' );
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// Load default block styles.
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add_theme_support( 'wp-block-styles' );
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// Add support for responsive embeds.
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add_theme_support( 'responsive-embeds' );
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// Add support for custom color scheme.
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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' => __( 'Dark Gray', 'twentysixteen' ),
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'slug' => 'dark-gray',
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'color' => '#1a1a1a',
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),
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array(
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'name' => __( 'Medium Gray', 'twentysixteen' ),
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'slug' => 'medium-gray',
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'color' => '#686868',
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),
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array(
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'name' => __( 'Light Gray', 'twentysixteen' ),
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'slug' => 'light-gray',
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'color' => '#e5e5e5',
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),
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array(
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'name' => __( 'White', 'twentysixteen' ),
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'slug' => 'white',
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'color' => '#fff',
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),
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array(
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'name' => __( 'Blue Gray', 'twentysixteen' ),
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'slug' => 'blue-gray',
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'color' => '#4d545c',
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),
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array(
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'name' => __( 'Bright Blue', 'twentysixteen' ),
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'slug' => 'bright-blue',
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'color' => '#007acc',
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),
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array(
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'name' => __( 'Light Blue', 'twentysixteen' ),
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'slug' => 'light-blue',
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'color' => '#9adffd',
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),
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array(
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'name' => __( 'Dark Brown', 'twentysixteen' ),
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'slug' => 'dark-brown',
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'color' => '#402b30',
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),
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array(
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'name' => __( 'Medium Brown', 'twentysixteen' ),
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'slug' => 'medium-brown',
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'color' => '#774e24',
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),
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array(
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'name' => __( 'Dark Red', 'twentysixteen' ),
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'slug' => 'dark-red',
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'color' => '#640c1f',
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),
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array(
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'name' => __( 'Bright Red', 'twentysixteen' ),
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'slug' => 'bright-red',
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'color' => '#ff675f',
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),
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array(
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'name' => __( 'Yellow', 'twentysixteen' ),
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'slug' => 'yellow',
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'color' => '#ffef8e',
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),
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)
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);
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// Indicate widget sidebars can use selective refresh in the Customizer.
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add_theme_support( 'customize-selective-refresh-widgets' );
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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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}
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endif; // twentysixteen_setup()
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add_action( 'after_setup_theme', 'twentysixteen_setup' );
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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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* @global int $content_width
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*
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* @since Twenty Sixteen 1.0
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*/
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function twentysixteen_content_width() {
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$GLOBALS['content_width'] = apply_filters( 'twentysixteen_content_width', 840 );
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}
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add_action( 'after_setup_theme', 'twentysixteen_content_width', 0 );
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/**
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* Add preconnect for Google Fonts.
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*
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* @since Twenty Sixteen 1.6
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* @deprecated Twenty Sixteen 2.9 Disabled filter because, by default, fonts are self-hosted.
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*
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* @param array $urls URLs to print for resource hints.
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* @param string $relation_type The relation type the URLs are printed.
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* @return array URLs to print for resource hints.
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*/
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function twentysixteen_resource_hints( $urls, $relation_type ) {
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if ( wp_style_is( 'twentysixteen-fonts', 'queue' ) && 'preconnect' === $relation_type ) {
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$urls[] = array(
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'href' => 'https://fonts.gstatic.com',
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'crossorigin',
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);
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}
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return $urls;
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}
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// add_filter( 'wp_resource_hints', 'twentysixteen_resource_hints', 10, 2 );
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/**
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* Registers a widget area.
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*
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* @link https://developer.wordpress.org/reference/functions/register_sidebar/
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*
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* @since Twenty Sixteen 1.0
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*/
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function twentysixteen_widgets_init() {
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register_sidebar(
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array(
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'name' => __( 'Sidebar', 'twentysixteen' ),
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'id' => 'sidebar-1',
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'description' => __( 'Add widgets here to appear in your sidebar.', 'twentysixteen' ),
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'before_widget' => '<section id="%1$s" class="widget %2$s">',
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'after_widget' => '</section>',
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'before_title' => '<h2 class="widget-title">',
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'after_title' => '</h2>',
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)
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);
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register_sidebar(
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array(
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'name' => __( 'Content Bottom 1', 'twentysixteen' ),
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'id' => 'sidebar-2',
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'description' => __( 'Appears at the bottom of the content on posts and pages.', 'twentysixteen' ),
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'before_widget' => '<section id="%1$s" class="widget %2$s">',
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'after_widget' => '</section>',
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'before_title' => '<h2 class="widget-title">',
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'after_title' => '</h2>',
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)
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);
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register_sidebar(
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array(
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'name' => __( 'Content Bottom 2', 'twentysixteen' ),
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'id' => 'sidebar-3',
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'description' => __( 'Appears at the bottom of the content on posts and pages.', 'twentysixteen' ),
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'before_widget' => '<section id="%1$s" class="widget %2$s">',
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'after_widget' => '</section>',
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'before_title' => '<h2 class="widget-title">',
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'after_title' => '</h2>',
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)
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);
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}
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add_action( 'widgets_init', 'twentysixteen_widgets_init' );
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if ( ! function_exists( 'twentysixteen_fonts_url' ) ) :
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/**
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* Register fonts for Twenty Sixteen.
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*
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* Create your own twentysixteen_fonts_url() function to override in a child theme.
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*
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* @since Twenty Sixteen 1.0
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* @since Twenty Sixteen 2.9 Replaced Google URL with self-hosted fonts.
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*
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* @return string Fonts URL for the theme.
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*/
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function twentysixteen_fonts_url() {
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$fonts_url = '';
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$fonts = array();
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/*
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* translators: If there are characters in your language that are not supported
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* by Merriweather, translate this to 'off'. Do not translate into your own language.
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*/
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if ( 'off' !== _x( 'on', 'Merriweather font: on or off', 'twentysixteen' ) ) {
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$fonts[] = 'merriweather';
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}
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/*
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* translators: If there are characters in your language that are not supported
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* by Montserrat, translate this to 'off'. Do not translate into your own language.
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*/
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if ( 'off' !== _x( 'on', 'Montserrat font: on or off', 'twentysixteen' ) ) {
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$fonts[] = 'montserrat';
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}
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/*
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* translators: If there are characters in your language that are not supported
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* by Inconsolata, translate this to 'off'. Do not translate into your own language.
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*/
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if ( 'off' !== _x( 'on', 'Inconsolata font: on or off', 'twentysixteen' ) ) {
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$fonts[] = 'inconsolata';
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}
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if ( $fonts ) {
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$fonts_url = get_template_directory_uri() . '/fonts/' . implode( '-plus-', $fonts ) . '.css';
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}
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return $fonts_url;
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}
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endif;
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/**
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* Handles JavaScript detection.
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*
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* Adds a `js` class to the root `<html>` element when JavaScript is detected.
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*
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* @since Twenty Sixteen 1.0
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*/
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function twentysixteen_javascript_detection() {
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echo "<script>(function(html){html.className = html.className.replace(/\bno-js\b/,'js')})(document.documentElement);</script>\n";
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}
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add_action( 'wp_head', 'twentysixteen_javascript_detection', 0 );
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/**
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* Enqueues scripts and styles.
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*
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* @since Twenty Sixteen 1.0
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*/
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function twentysixteen_scripts() {
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// Add custom fonts, used in the main stylesheet.
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$font_version = ( 0 === strpos( (string) twentysixteen_fonts_url(), get_template_directory_uri() . '/' ) ) ? '20230328' : null;
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wp_enqueue_style( 'twentysixteen-fonts', twentysixteen_fonts_url(), array(), $font_version );
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// Add Genericons, used in the main stylesheet.
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wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '20201208' );
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// Theme stylesheet.
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wp_enqueue_style( 'twentysixteen-style', get_stylesheet_uri(), array(), '20221101' );
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// Theme block stylesheet.
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wp_enqueue_style( 'twentysixteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentysixteen-style' ), '20221004' );
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// Load the Internet Explorer specific stylesheet.
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wp_enqueue_style( 'twentysixteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentysixteen-style' ), '20170530' );
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wp_style_add_data( 'twentysixteen-ie', 'conditional', 'lt IE 10' );
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// Load the Internet Explorer 8 specific stylesheet.
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wp_enqueue_style( 'twentysixteen-ie8', get_template_directory_uri() . '/css/ie8.css', array( 'twentysixteen-style' ), '20170530' );
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wp_style_add_data( 'twentysixteen-ie8', 'conditional', 'lt IE 9' );
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// Load the Internet Explorer 7 specific stylesheet.
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wp_enqueue_style( 'twentysixteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentysixteen-style' ), '20170530' );
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wp_style_add_data( 'twentysixteen-ie7', 'conditional', 'lt IE 8' );
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// Load the html5 shiv.
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wp_enqueue_script( 'twentysixteen-html5', get_template_directory_uri() . '/js/html5.js', array(), '3.7.3' );
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wp_script_add_data( 'twentysixteen-html5', 'conditional', 'lt IE 9' );
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wp_enqueue_script( 'twentysixteen-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20170530', true );
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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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if ( is_singular() && wp_attachment_is_image() ) {
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wp_enqueue_script( 'twentysixteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20170530' );
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}
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wp_enqueue_script( 'twentysixteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20211130', true );
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wp_localize_script(
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'twentysixteen-script',
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'screenReaderText',
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array(
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'expand' => __( 'expand child menu', 'twentysixteen' ),
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'collapse' => __( 'collapse child menu', 'twentysixteen' ),
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)
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);
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}
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add_action( 'wp_enqueue_scripts', 'twentysixteen_scripts' );
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/**
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* Enqueue styles for the block-based editor.
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*
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* @since Twenty Sixteen 1.6
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*/
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function twentysixteen_block_editor_styles() {
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// Block styles.
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wp_enqueue_style( 'twentysixteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), '20221004' );
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// Add custom fonts.
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$font_version = ( 0 === strpos( (string) twentysixteen_fonts_url(), get_template_directory_uri() . '/' ) ) ? '20230328' : null;
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wp_enqueue_style( 'twentysixteen-fonts', twentysixteen_fonts_url(), array(), $font_version );
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}
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add_action( 'enqueue_block_editor_assets', 'twentysixteen_block_editor_styles' );
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/**
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* Adds custom classes to the array of body classes.
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*
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* @since Twenty Sixteen 1.0
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*
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* @param array $classes Classes for the body element.
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* @return array (Maybe) filtered body classes.
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*/
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function twentysixteen_body_classes( $classes ) {
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// Adds a class of custom-background-image to sites with a custom background image.
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if ( get_background_image() ) {
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$classes[] = 'custom-background-image';
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}
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// Adds a class of group-blog to sites with more than 1 published author.
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if ( is_multi_author() ) {
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$classes[] = 'group-blog';
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}
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// Adds a class of no-sidebar to sites without active sidebar.
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if ( ! is_active_sidebar( 'sidebar-1' ) ) {
|
|
$classes[] = 'no-sidebar';
|
|
}
|
|
|
|
// Adds a class of hfeed to non-singular pages.
|
|
if ( ! is_singular() ) {
|
|
$classes[] = 'hfeed';
|
|
}
|
|
|
|
return $classes;
|
|
}
|
|
add_filter( 'body_class', 'twentysixteen_body_classes' );
|
|
|
|
/**
|
|
* Converts a HEX value to RGB.
|
|
*
|
|
* @since Twenty Sixteen 1.0
|
|
*
|
|
* @param string $color The original color, in 3- or 6-digit hexadecimal form.
|
|
* @return array Array containing RGB (red, green, and blue) values for the given
|
|
* HEX code, empty array otherwise.
|
|
*/
|
|
function twentysixteen_hex2rgb( $color ) {
|
|
$color = trim( $color, '#' );
|
|
|
|
if ( strlen( $color ) === 3 ) {
|
|
$r = hexdec( substr( $color, 0, 1 ) . substr( $color, 0, 1 ) );
|
|
$g = hexdec( substr( $color, 1, 1 ) . substr( $color, 1, 1 ) );
|
|
$b = hexdec( substr( $color, 2, 1 ) . substr( $color, 2, 1 ) );
|
|
} elseif ( strlen( $color ) === 6 ) {
|
|
$r = hexdec( substr( $color, 0, 2 ) );
|
|
$g = hexdec( substr( $color, 2, 2 ) );
|
|
$b = hexdec( substr( $color, 4, 2 ) );
|
|
} else {
|
|
return array();
|
|
}
|
|
|
|
return array(
|
|
'red' => $r,
|
|
'green' => $g,
|
|
'blue' => $b,
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Custom template tags for this theme.
|
|
*/
|
|
require get_template_directory() . '/inc/template-tags.php';
|
|
|
|
/**
|
|
* Block Patterns.
|
|
*/
|
|
require get_template_directory() . '/inc/block-patterns.php';
|
|
|
|
/**
|
|
* Customizer additions.
|
|
*/
|
|
require get_template_directory() . '/inc/customizer.php';
|
|
|
|
/**
|
|
* Add custom image sizes attribute to enhance responsive image functionality
|
|
* for content images
|
|
*
|
|
* @since Twenty Sixteen 1.0
|
|
*
|
|
* @param string $sizes A source size value for use in a 'sizes' attribute.
|
|
* @param array $size Image size. Accepts an array of width and height
|
|
* values in pixels (in that order).
|
|
* @return string A source size value for use in a content image 'sizes' attribute.
|
|
*/
|
|
function twentysixteen_content_image_sizes_attr( $sizes, $size ) {
|
|
$width = $size[0];
|
|
|
|
if ( 840 <= $width ) {
|
|
$sizes = '(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px';
|
|
}
|
|
|
|
if ( 'page' === get_post_type() ) {
|
|
if ( 840 > $width ) {
|
|
$sizes = '(max-width: ' . $width . 'px) 85vw, ' . $width . 'px';
|
|
}
|
|
} else {
|
|
if ( 840 > $width && 600 <= $width ) {
|
|
$sizes = '(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px';
|
|
} elseif ( 600 > $width ) {
|
|
$sizes = '(max-width: ' . $width . 'px) 85vw, ' . $width . 'px';
|
|
}
|
|
}
|
|
|
|
return $sizes;
|
|
}
|
|
add_filter( 'wp_calculate_image_sizes', 'twentysixteen_content_image_sizes_attr', 10, 2 );
|
|
|
|
/**
|
|
* Add custom image sizes attribute to enhance responsive image functionality
|
|
* for post thumbnails
|
|
*
|
|
* @since Twenty Sixteen 1.0
|
|
*
|
|
* @param string[] $attr Array of attribute values for the image markup, keyed by attribute name.
|
|
* See wp_get_attachment_image().
|
|
* @param WP_Post $attachment Image attachment post.
|
|
* @param string|int[] $size Requested image size. Can be any registered image size name, or
|
|
* an array of width and height values in pixels (in that order).
|
|
* @return string[] The filtered attributes for the image markup.
|
|
*/
|
|
function twentysixteen_post_thumbnail_sizes_attr( $attr, $attachment, $size ) {
|
|
if ( 'post-thumbnail' === $size ) {
|
|
if ( is_active_sidebar( 'sidebar-1' ) ) {
|
|
$attr['sizes'] = '(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 60vw, (max-width: 1362px) 62vw, 840px';
|
|
} else {
|
|
$attr['sizes'] = '(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 88vw, 1200px';
|
|
}
|
|
}
|
|
return $attr;
|
|
}
|
|
add_filter( 'wp_get_attachment_image_attributes', 'twentysixteen_post_thumbnail_sizes_attr', 10, 3 );
|
|
|
|
/**
|
|
* Modifies tag cloud widget arguments to display all tags in the same font size
|
|
* and use list format for better accessibility.
|
|
*
|
|
* @since Twenty Sixteen 1.1
|
|
*
|
|
* @param array $args Arguments for tag cloud widget.
|
|
* @return array The filtered arguments for tag cloud widget.
|
|
*/
|
|
function twentysixteen_widget_tag_cloud_args( $args ) {
|
|
$args['largest'] = 1;
|
|
$args['smallest'] = 1;
|
|
$args['unit'] = 'em';
|
|
$args['format'] = 'list';
|
|
|
|
return $args;
|
|
}
|
|
add_filter( 'widget_tag_cloud_args', 'twentysixteen_widget_tag_cloud_args' );
|