669 lines
21 KiB
PHP
669 lines
21 KiB
PHP
<?php
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/**
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* Twenty Fifteen 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_Fifteen
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* @since Twenty Fifteen 1.0
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*/
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/**
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* Set the content width based on the theme's design and stylesheet.
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*
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* @since Twenty Fifteen 1.0
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*/
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if ( ! isset( $content_width ) ) {
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$content_width = 660;
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}
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/**
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* Twenty Fifteen only works in WordPress 4.1 or later.
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*/
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if ( version_compare( $GLOBALS['wp_version'], '4.1-alpha', '<' ) ) {
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require get_template_directory() . '/inc/back-compat.php';
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}
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if ( ! function_exists( 'twentyfifteen_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 Fifteen 1.0
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*/
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function twentyfifteen_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/twentyfifteen
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* If you're building a theme based on twentyfifteen, use a find and replace
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* to change 'twentyfifteen' to the name of your theme in all the template files.
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*
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* Manual loading of text domain is not required after the introduction of
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* just in time translation loading in WordPress version 4.6.
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*
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* @ticket 58318
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*/
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if ( version_compare( $GLOBALS['wp_version'], '4.6', '<' ) ) {
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load_theme_textdomain( 'twentyfifteen' );
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}
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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 Post Thumbnails on posts and pages.
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*
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* See: 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( 825, 510, true );
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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', 'twentyfifteen' ),
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'social' => __( 'Social Links Menu', 'twentyfifteen' ),
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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://developer.wordpress.org/advanced-administration/wordpress/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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* Enable support for custom logo.
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*
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* @since Twenty Fifteen 1.5
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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' => 248,
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'width' => 248,
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'flex-height' => true,
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)
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);
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$color_scheme = twentyfifteen_get_color_scheme();
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$default_color = trim( $color_scheme[0], '#' );
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// Setup the WordPress core custom background feature.
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add_theme_support(
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'custom-background',
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/**
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* Filters Twenty Fifteen custom-background support arguments.
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*
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* @since Twenty Fifteen 1.0
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*
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* @param array $args {
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* An array of custom-background support arguments.
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*
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* @type string $default-color Default color of the background.
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* @type string $default-attachment Default attachment of the background.
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* }
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*/
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apply_filters(
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'twentyfifteen_custom_background_args',
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array(
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'default-color' => $default_color,
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'default-attachment' => 'fixed',
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)
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)
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);
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/*
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* This theme styles the visual editor to resemble the theme style,
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* specifically font, colors, icons, and column width. When fonts are
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* self-hosted, the theme directory needs to be removed first.
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*/
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$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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(string) twentyfifteen_fonts_url()
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);
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add_editor_style( array( 'css/editor-style.css', 'genericons/genericons.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', 'twentyfifteen' ),
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'slug' => 'dark-gray',
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'color' => '#111',
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),
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array(
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'name' => __( 'Light Gray', 'twentyfifteen' ),
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'slug' => 'light-gray',
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'color' => '#f1f1f1',
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),
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array(
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'name' => __( 'White', 'twentyfifteen' ),
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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' => __( 'Yellow', 'twentyfifteen' ),
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'slug' => 'yellow',
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'color' => '#f4ca16',
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),
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array(
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'name' => __( 'Dark Brown', 'twentyfifteen' ),
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'slug' => 'dark-brown',
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'color' => '#352712',
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),
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array(
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'name' => __( 'Medium Pink', 'twentyfifteen' ),
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'slug' => 'medium-pink',
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'color' => '#e53b51',
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),
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array(
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'name' => __( 'Light Pink', 'twentyfifteen' ),
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'slug' => 'light-pink',
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'color' => '#ffe5d1',
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),
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array(
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'name' => __( 'Dark Purple', 'twentyfifteen' ),
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'slug' => 'dark-purple',
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'color' => '#2e2256',
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),
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array(
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'name' => __( 'Purple', 'twentyfifteen' ),
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'slug' => 'purple',
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'color' => '#674970',
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),
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array(
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'name' => __( 'Blue Gray', 'twentyfifteen' ),
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'slug' => 'blue-gray',
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'color' => '#22313f',
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),
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array(
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'name' => __( 'Bright Blue', 'twentyfifteen' ),
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'slug' => 'bright-blue',
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'color' => '#55c3dc',
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),
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array(
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'name' => __( 'Light Blue', 'twentyfifteen' ),
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'slug' => 'light-blue',
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'color' => '#e9f2f9',
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),
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)
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);
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// Add support for custom color scheme.
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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' => __( 'Dark Gray Gradient', 'twentyfifteen' ),
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'slug' => 'dark-gray-gradient-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(17,17,17,1) 0%, rgba(42,42,42,1) 100%)',
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),
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array(
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'name' => __( 'Light Gray Gradient', 'twentyfifteen' ),
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'slug' => 'light-gray-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(241,241,241,1) 0%, rgba(215,215,215,1) 100%)',
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),
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array(
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'name' => __( 'White Gradient', 'twentyfifteen' ),
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'slug' => 'white-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(255,255,255,1) 0%, rgba(230,230,230,1) 100%)',
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),
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array(
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'name' => __( 'Yellow Gradient', 'twentyfifteen' ),
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'slug' => 'yellow-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(244,202,22,1) 0%, rgba(205,168,10,1) 100%)',
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),
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array(
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'name' => __( 'Dark Brown Gradient', 'twentyfifteen' ),
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'slug' => 'dark-brown-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(53,39,18,1) 0%, rgba(91,67,31,1) 100%)',
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),
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array(
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'name' => __( 'Medium Pink Gradient', 'twentyfifteen' ),
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'slug' => 'medium-pink-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(229,59,81,1) 0%, rgba(209,28,51,1) 100%)',
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),
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array(
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'name' => __( 'Light Pink Gradient', 'twentyfifteen' ),
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'slug' => 'light-pink-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(255,229,209,1) 0%, rgba(255,200,158,1) 100%)',
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),
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array(
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'name' => __( 'Dark Purple Gradient', 'twentyfifteen' ),
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'slug' => 'dark-purple-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(46,34,86,1) 0%, rgba(66,48,123,1) 100%)',
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),
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array(
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'name' => __( 'Purple Gradient', 'twentyfifteen' ),
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'slug' => 'purple-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(103,73,112,1) 0%, rgba(131,93,143,1) 100%)',
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),
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array(
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'name' => __( 'Blue Gray Gradient', 'twentyfifteen' ),
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'slug' => 'blue-gray-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(34,49,63,1) 0%, rgba(52,75,96,1) 100%)',
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),
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array(
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'name' => __( 'Bright Blue Gradient', 'twentyfifteen' ),
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'slug' => 'bright-blue-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(85,195,220,1) 0%, rgba(43,180,211,1) 100%)',
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),
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array(
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'name' => __( 'Light Blue Gradient', 'twentyfifteen' ),
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'slug' => 'light-blue-gradient',
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'gradient' => 'linear-gradient(90deg, rgba(233,242,249,1) 0%, rgba(193,218,238,1) 100%)',
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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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}
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endif; // twentyfifteen_setup()
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add_action( 'after_setup_theme', 'twentyfifteen_setup' );
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/**
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* Register widget area.
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*
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* @since Twenty Fifteen 1.0
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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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function twentyfifteen_widgets_init() {
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register_sidebar(
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array(
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'name' => __( 'Widget Area', 'twentyfifteen' ),
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'id' => 'sidebar-1',
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'description' => __( 'Add widgets here to appear in your sidebar.', 'twentyfifteen' ),
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'before_widget' => '<aside id="%1$s" class="widget %2$s">',
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'after_widget' => '</aside>',
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'before_title' => '<h2 class="widget-title">',
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'after_title' => '</h2>',
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)
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);
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}
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add_action( 'widgets_init', 'twentyfifteen_widgets_init' );
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if ( ! function_exists( 'twentyfifteen_fonts_url' ) ) :
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/**
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* Register fonts for Twenty Fifteen.
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*
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* @since Twenty Fifteen 1.0
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* @since Twenty Fifteen 3.4 Replaced Google URL with self-hosted fonts.
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*
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* @return string Fonts URL for the theme.
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*/
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function twentyfifteen_fonts_url() {
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$fonts_url = '';
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$fonts = array();
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/*
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* translators: If there are characters in your language that are not supported
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* by Noto Sans, translate this to 'off'. Do not translate into your own language.
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*/
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if ( 'off' !== _x( 'on', 'Noto Sans font: on or off', 'twentyfifteen' ) ) {
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$fonts[] = 'noto-sans';
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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 Noto Serif, translate this to 'off'. Do not translate into your own language.
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*/
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if ( 'off' !== _x( 'on', 'Noto Serif font: on or off', 'twentyfifteen' ) ) {
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$fonts[] = 'noto-serif';
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}
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/*
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* translators: If there are characters in your language that are not supported
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* by Inconsolata, translate this to 'off'. Do not translate into your own language.
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*/
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if ( 'off' !== _x( 'on', 'Inconsolata font: on or off', 'twentyfifteen' ) ) {
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$fonts[] = 'inconsolata';
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}
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if ( $fonts ) {
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$fonts_url = get_template_directory_uri() . '/assets/fonts/' . implode( '-plus-', $fonts ) . '.css';
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}
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return $fonts_url;
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}
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endif;
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/**
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* JavaScript Detection.
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*
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* Adds a `js` class to the root `<html>` element when JavaScript is detected.
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*
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* @since Twenty Fifteen 1.1
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*/
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function twentyfifteen_javascript_detection() {
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echo "<script>(function(html){html.className = html.className.replace(/\bno-js\b/,'js')})(document.documentElement);</script>\n";
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}
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add_action( 'wp_head', 'twentyfifteen_javascript_detection', 0 );
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/**
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* Enqueue scripts and styles.
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*
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* @since Twenty Fifteen 1.0
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*/
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function twentyfifteen_scripts() {
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// Add custom fonts, used in the main stylesheet.
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$font_version = ( 0 === strpos( (string) twentyfifteen_fonts_url(), get_template_directory_uri() . '/' ) ) ? '20230328' : null;
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wp_enqueue_style( 'twentyfifteen-fonts', twentyfifteen_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(), '20201026' );
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// Load our main stylesheet.
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wp_enqueue_style( 'twentyfifteen-style', get_stylesheet_uri(), array(), '20241112' );
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// Theme block stylesheet.
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wp_enqueue_style( 'twentyfifteen-block-style', get_template_directory_uri() . '/css/blocks.css', array( 'twentyfifteen-style' ), '20240715' );
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// Register the Internet Explorer specific stylesheet.
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wp_register_style( 'twentyfifteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfifteen-style' ), '20220908' );
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wp_style_add_data( 'twentyfifteen-ie', 'conditional', 'lt IE 9' );
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// Register the Internet Explorer 7 specific stylesheet.
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wp_register_style( 'twentyfifteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentyfifteen-style' ), '20141210' );
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wp_style_add_data( 'twentyfifteen-ie7', 'conditional', 'lt IE 8' );
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// Skip-link fix is no longer enqueued by default.
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wp_register_script( 'twentyfifteen-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20230526', array( 'in_footer' => 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( 'twentyfifteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20141210' );
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}
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wp_enqueue_script(
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'twentyfifteen-script',
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get_template_directory_uri() . '/js/functions.js',
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array( 'jquery' ),
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'20221101',
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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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wp_localize_script(
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'twentyfifteen-script',
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'screenReaderText',
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array(
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/* translators: Hidden accessibility text. */
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'expand' => '<span class="screen-reader-text">' . __( 'expand child menu', 'twentyfifteen' ) . '</span>',
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/* translators: Hidden accessibility text. */
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'collapse' => '<span class="screen-reader-text">' . __( 'collapse child menu', 'twentyfifteen' ) . '</span>',
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)
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);
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}
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add_action( 'wp_enqueue_scripts', 'twentyfifteen_scripts' );
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|
|
/**
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|
* Enqueue styles for the block-based editor.
|
|
*
|
|
* @since Twenty Fifteen 2.1
|
|
*/
|
|
function twentyfifteen_block_editor_styles() {
|
|
// Block styles.
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|
wp_enqueue_style( 'twentyfifteen-block-editor-style', get_template_directory_uri() . '/css/editor-blocks.css', array(), '20240720' );
|
|
// Add custom fonts.
|
|
$font_version = ( 0 === strpos( (string) twentyfifteen_fonts_url(), get_template_directory_uri() . '/' ) ) ? '20230328' : null;
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|
wp_enqueue_style( 'twentyfifteen-fonts', twentyfifteen_fonts_url(), array(), $font_version );
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|
}
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|
add_action( 'enqueue_block_editor_assets', 'twentyfifteen_block_editor_styles' );
|
|
|
|
|
|
/**
|
|
* Add preconnect for Google Fonts.
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|
*
|
|
* @since Twenty Fifteen 1.7
|
|
* @deprecated Twenty Fifteen 3.4 Disabled filter because, by default, fonts are self-hosted.
|
|
*
|
|
* @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 twentyfifteen_resource_hints( $urls, $relation_type ) {
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|
if ( wp_style_is( 'twentyfifteen-fonts', 'queue' ) && 'preconnect' === $relation_type ) {
|
|
if ( version_compare( $GLOBALS['wp_version'], '4.7-alpha', '>=' ) ) {
|
|
$urls[] = array(
|
|
'href' => 'https://fonts.gstatic.com',
|
|
'crossorigin',
|
|
);
|
|
} else {
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|
$urls[] = 'https://fonts.gstatic.com';
|
|
}
|
|
}
|
|
|
|
return $urls;
|
|
}
|
|
// add_filter( 'wp_resource_hints', 'twentyfifteen_resource_hints', 10, 2 );
|
|
|
|
/**
|
|
* Add featured image as background image to post navigation elements.
|
|
*
|
|
* @since Twenty Fifteen 1.0
|
|
*
|
|
* @see wp_add_inline_style()
|
|
*/
|
|
function twentyfifteen_post_nav_background() {
|
|
if ( ! is_single() ) {
|
|
return;
|
|
}
|
|
|
|
$previous = ( is_attachment() ) ? get_post( get_post()->post_parent ) : get_adjacent_post( false, '', true );
|
|
$next = get_adjacent_post( false, '', false );
|
|
$css = '';
|
|
|
|
if ( is_attachment() && 'attachment' === $previous->post_type ) {
|
|
return;
|
|
}
|
|
|
|
if ( $previous && has_post_thumbnail( $previous->ID ) ) {
|
|
$prevthumb = wp_get_attachment_image_src( get_post_thumbnail_id( $previous->ID ), 'post-thumbnail' );
|
|
$css .= '
|
|
.post-navigation .nav-previous { background-image: url(' . esc_url( $prevthumb[0] ) . '); }
|
|
.post-navigation .nav-previous .post-title, .post-navigation .nav-previous a:hover .post-title, .post-navigation .nav-previous .meta-nav { color: #fff; }
|
|
.post-navigation .nav-previous a:before { background-color: rgba(0, 0, 0, 0.4); }
|
|
';
|
|
}
|
|
|
|
if ( $next && has_post_thumbnail( $next->ID ) ) {
|
|
$nextthumb = wp_get_attachment_image_src( get_post_thumbnail_id( $next->ID ), 'post-thumbnail' );
|
|
$css .= '
|
|
.post-navigation .nav-next { background-image: url(' . esc_url( $nextthumb[0] ) . '); border-top: 0; }
|
|
.post-navigation .nav-next .post-title, .post-navigation .nav-next a:hover .post-title, .post-navigation .nav-next .meta-nav { color: #fff; }
|
|
.post-navigation .nav-next a:before { background-color: rgba(0, 0, 0, 0.4); }
|
|
';
|
|
}
|
|
|
|
wp_add_inline_style( 'twentyfifteen-style', $css );
|
|
}
|
|
add_action( 'wp_enqueue_scripts', 'twentyfifteen_post_nav_background' );
|
|
|
|
/**
|
|
* Display descriptions in main navigation.
|
|
*
|
|
* @since Twenty Fifteen 1.0
|
|
*
|
|
* @param string $item_output The menu item's starting HTML output.
|
|
* @param WP_Post $item Menu item data object.
|
|
* @param int $depth Depth of the menu. Used for padding.
|
|
* @param stdClass $args An object of wp_nav_menu() arguments.
|
|
* @return string Menu item with possible description.
|
|
*/
|
|
function twentyfifteen_nav_description( $item_output, $item, $depth, $args ) {
|
|
if ( 'primary' === $args->theme_location && $item->description ) {
|
|
$item_output = str_replace( $args->link_after . '</a>', '<div class="menu-item-description">' . $item->description . '</div>' . $args->link_after . '</a>', $item_output );
|
|
}
|
|
|
|
return $item_output;
|
|
}
|
|
add_filter( 'walker_nav_menu_start_el', 'twentyfifteen_nav_description', 10, 4 );
|
|
|
|
/**
|
|
* Add a `screen-reader-text` class to the search form's submit button.
|
|
*
|
|
* @since Twenty Fifteen 1.0
|
|
*
|
|
* @param string $html Search form HTML.
|
|
* @return string Modified search form HTML.
|
|
*/
|
|
function twentyfifteen_search_form_modify( $html ) {
|
|
return str_replace( 'class="search-submit"', 'class="search-submit screen-reader-text"', $html );
|
|
}
|
|
add_filter( 'get_search_form', 'twentyfifteen_search_form_modify' );
|
|
|
|
/**
|
|
* Modifies tag cloud widget arguments to display all tags in the same font size
|
|
* and use list format for better accessibility.
|
|
*
|
|
* @since Twenty Fifteen 1.9
|
|
*
|
|
* @param array $args Arguments for tag cloud widget.
|
|
* @return array The filtered arguments for tag cloud widget.
|
|
*/
|
|
function twentyfifteen_widget_tag_cloud_args( $args ) {
|
|
$args['largest'] = 22;
|
|
$args['smallest'] = 8;
|
|
$args['unit'] = 'pt';
|
|
$args['format'] = 'list';
|
|
|
|
return $args;
|
|
}
|
|
add_filter( 'widget_tag_cloud_args', 'twentyfifteen_widget_tag_cloud_args' );
|
|
|
|
/**
|
|
* Prevents `author-bio.php` partial template from interfering with rendering
|
|
* an author archive of a user with the `bio` username.
|
|
*
|
|
* @since Twenty Fifteen 2.6
|
|
*
|
|
* @param string $template Template file.
|
|
* @return string Replacement template file.
|
|
*/
|
|
function twentyfifteen_author_bio_template( $template ) {
|
|
if ( is_author() ) {
|
|
$author = get_queried_object();
|
|
if ( $author instanceof WP_User && 'bio' === $author->user_nicename ) {
|
|
// Use author templates if exist, fall back to template hierarchy otherwise.
|
|
return locate_template( array( "author-{$author->ID}.php", 'author.php' ) );
|
|
}
|
|
}
|
|
|
|
return $template;
|
|
}
|
|
add_filter( 'author_template', 'twentyfifteen_author_bio_template' );
|
|
|
|
|
|
/**
|
|
* Implement the Custom Header feature.
|
|
*
|
|
* @since Twenty Fifteen 1.0
|
|
*/
|
|
require get_template_directory() . '/inc/custom-header.php';
|
|
|
|
/**
|
|
* Custom template tags for this theme.
|
|
*
|
|
* @since Twenty Fifteen 1.0
|
|
*/
|
|
require get_template_directory() . '/inc/template-tags.php';
|
|
|
|
/**
|
|
* Customizer additions.
|
|
*
|
|
* @since Twenty Fifteen 1.0
|
|
*/
|
|
require get_template_directory() . '/inc/customizer.php';
|
|
|
|
/**
|
|
* Register block patterns and pattern categories.
|
|
*
|
|
* @since Twenty Fifteen 3.9
|
|
*/
|
|
function twentyfifteen_register_block_patterns() {
|
|
require get_template_directory() . '/inc/block-patterns.php';
|
|
}
|
|
|
|
add_action( 'init', 'twentyfifteen_register_block_patterns' );
|