--- /dev/null
+<?php
+/**
+ * Twenty Fifteen functions and definitions
+ *
+ * Set up the theme and provides some helper functions, which are used in the
+ * theme as custom template tags. Others are attached to action and filter
+ * hooks in WordPress to change core functionality.
+ *
+ * When using a child theme you can override certain functions (those wrapped
+ * in a function_exists() call) by defining them first in your child theme's
+ * functions.php file. The child theme's functions.php file is included before
+ * the parent theme's file, so the child theme functions would be used.
+ *
+ * @link https://codex.wordpress.org/Theme_Development
+ * @link https://codex.wordpress.org/Child_Themes
+ *
+ * Functions that are not pluggable (not wrapped in function_exists()) are
+ * instead attached to a filter or action hook.
+ *
+ * For more information on hooks, actions, and filters,
+ * {@link https://codex.wordpress.org/Plugin_API}
+ *
+ * @package WordPress
+ * @subpackage Twenty_Fifteen
+ * @since Twenty Fifteen 1.0
+ */
+
+/**
+ * Set the content width based on the theme's design and stylesheet.
+ *
+ * @since Twenty Fifteen 1.0
+ */
+if ( ! isset( $content_width ) ) {
+ $content_width = 660;
+}
+
+/**
+ * Twenty Fifteen only works in WordPress 4.1 or later.
+ */
+if ( version_compare( $GLOBALS['wp_version'], '4.1-alpha', '<' ) ) {
+ require get_template_directory() . '/inc/back-compat.php';
+}
+
+if ( ! function_exists( 'twentyfifteen_setup' ) ) :
+/**
+ * Sets up theme defaults and registers support for various WordPress features.
+ *
+ * Note that this function is hooked into the after_setup_theme hook, which
+ * runs before the init hook. The init hook is too late for some features, such
+ * as indicating support for post thumbnails.
+ *
+ * @since Twenty Fifteen 1.0
+ */
+function twentyfifteen_setup() {
+
+ /*
+ * Make theme available for translation.
+ * Translations can be filed in the /languages/ directory.
+ * If you're building a theme based on twentyfifteen, use a find and replace
+ * to change 'twentyfifteen' to the name of your theme in all the template files
+ */
+ load_theme_textdomain( 'twentyfifteen', get_template_directory() . '/languages' );
+
+ // Add default posts and comments RSS feed links to head.
+ add_theme_support( 'automatic-feed-links' );
+
+ /*
+ * Let WordPress manage the document title.
+ * By adding theme support, we declare that this theme does not use a
+ * hard-coded <title> tag in the document head, and expect WordPress to
+ * provide it for us.
+ */
+ add_theme_support( 'title-tag' );
+
+ /*
+ * Enable support for Post Thumbnails on posts and pages.
+ *
+ * See: https://codex.wordpress.org/Function_Reference/add_theme_support#Post_Thumbnails
+ */
+ add_theme_support( 'post-thumbnails' );
+ set_post_thumbnail_size( 825, 510, true );
+
+ // This theme uses wp_nav_menu() in two locations.
+ register_nav_menus( array(
+ 'primary' => __( 'Primary Menu', 'twentyfifteen' ),
+ 'social' => __( 'Social Links Menu', 'twentyfifteen' ),
+ ) );
+
+ /*
+ * Switch default core markup for search form, comment form, and comments
+ * to output valid HTML5.
+ */
+ add_theme_support( 'html5', array(
+ 'search-form', 'comment-form', 'comment-list', 'gallery', 'caption'
+ ) );
+
+ /*
+ * Enable support for Post Formats.
+ *
+ * See: https://codex.wordpress.org/Post_Formats
+ */
+ add_theme_support( 'post-formats', array(
+ 'aside', 'image', 'video', 'quote', 'link', 'gallery', 'status', 'audio', 'chat'
+ ) );
+
+ $color_scheme = twentyfifteen_get_color_scheme();
+ $default_color = trim( $color_scheme[0], '#' );
+
+ // Setup the WordPress core custom background feature.
+ add_theme_support( 'custom-background', apply_filters( 'twentyfifteen_custom_background_args', array(
+ 'default-color' => $default_color,
+ 'default-attachment' => 'fixed',
+ ) ) );
+
+ /*
+ * This theme styles the visual editor to resemble the theme style,
+ * specifically font, colors, icons, and column width.
+ */
+ add_editor_style( array( 'css/editor-style.css', 'genericons/genericons.css', twentyfifteen_fonts_url() ) );
+}
+endif; // twentyfifteen_setup
+add_action( 'after_setup_theme', 'twentyfifteen_setup' );
+
+/**
+ * Register widget area.
+ *
+ * @since Twenty Fifteen 1.0
+ *
+ * @link https://codex.wordpress.org/Function_Reference/register_sidebar
+ */
+function twentyfifteen_widgets_init() {
+ register_sidebar( array(
+ 'name' => __( 'Widget Area', 'twentyfifteen' ),
+ 'id' => 'sidebar-1',
+ 'description' => __( 'Add widgets here to appear in your sidebar.', 'twentyfifteen' ),
+ 'before_widget' => '<aside id="%1$s" class="widget %2$s">',
+ 'after_widget' => '</aside>',
+ 'before_title' => '<h2 class="widget-title">',
+ 'after_title' => '</h2>',
+ ) );
+}
+add_action( 'widgets_init', 'twentyfifteen_widgets_init' );
+
+if ( ! function_exists( 'twentyfifteen_fonts_url' ) ) :
+/**
+ * Register Google fonts for Twenty Fifteen.
+ *
+ * @since Twenty Fifteen 1.0
+ *
+ * @return string Google fonts URL for the theme.
+ */
+function twentyfifteen_fonts_url() {
+ $fonts_url = '';
+ $fonts = array();
+ $subsets = 'latin,latin-ext';
+
+ /* translators: If there are characters in your language that are not supported by Noto Sans, translate this to 'off'. Do not translate into your own language. */
+ if ( 'off' !== _x( 'on', 'Noto Sans font: on or off', 'twentyfifteen' ) ) {
+ $fonts[] = 'Noto Sans:400italic,700italic,400,700';
+ }
+
+ /* translators: If there are characters in your language that are not supported by Noto Serif, translate this to 'off'. Do not translate into your own language. */
+ if ( 'off' !== _x( 'on', 'Noto Serif font: on or off', 'twentyfifteen' ) ) {
+ $fonts[] = 'Noto Serif:400italic,700italic,400,700';
+ }
+
+ /* translators: If there are characters in your language that are not supported by Inconsolata, translate this to 'off'. Do not translate into your own language. */
+ if ( 'off' !== _x( 'on', 'Inconsolata font: on or off', 'twentyfifteen' ) ) {
+ $fonts[] = 'Inconsolata:400,700';
+ }
+
+ /* translators: To add an additional character subset specific to your language, translate this to 'greek', 'cyrillic', 'devanagari' or 'vietnamese'. Do not translate into your own language. */
+ $subset = _x( 'no-subset', 'Add new subset (greek, cyrillic, devanagari, vietnamese)', 'twentyfifteen' );
+
+ if ( 'cyrillic' == $subset ) {
+ $subsets .= ',cyrillic,cyrillic-ext';
+ } elseif ( 'greek' == $subset ) {
+ $subsets .= ',greek,greek-ext';
+ } elseif ( 'devanagari' == $subset ) {
+ $subsets .= ',devanagari';
+ } elseif ( 'vietnamese' == $subset ) {
+ $subsets .= ',vietnamese';
+ }
+
+ if ( $fonts ) {
+ $fonts_url = add_query_arg( array(
+ 'family' => urlencode( implode( '|', $fonts ) ),
+ 'subset' => urlencode( $subsets ),
+ ), '//fonts.googleapis.com/css' );
+ }
+
+ return $fonts_url;
+}
+endif;
+
+/**
+ * Enqueue scripts and styles.
+ *
+ * @since Twenty Fifteen 1.0
+ */
+function twentyfifteen_scripts() {
+ // Add custom fonts, used in the main stylesheet.
+ wp_enqueue_style( 'twentyfifteen-fonts', twentyfifteen_fonts_url(), array(), null );
+
+ // Add Genericons, used in the main stylesheet.
+ wp_enqueue_style( 'genericons', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.2' );
+
+ // Load our main stylesheet.
+ wp_enqueue_style( 'twentyfifteen-style', get_stylesheet_uri() );
+
+ // Load the Internet Explorer specific stylesheet.
+ wp_enqueue_style( 'twentyfifteen-ie', get_template_directory_uri() . '/css/ie.css', array( 'twentyfifteen-style' ), '20141010' );
+ wp_style_add_data( 'twentyfifteen-ie', 'conditional', 'lt IE 9' );
+
+ // Load the Internet Explorer 7 specific stylesheet.
+ wp_enqueue_style( 'twentyfifteen-ie7', get_template_directory_uri() . '/css/ie7.css', array( 'twentyfifteen-style' ), '20141010' );
+ wp_style_add_data( 'twentyfifteen-ie7', 'conditional', 'lt IE 8' );
+
+ wp_enqueue_script( 'twentyfifteen-skip-link-focus-fix', get_template_directory_uri() . '/js/skip-link-focus-fix.js', array(), '20141010', true );
+
+ if ( is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
+ wp_enqueue_script( 'comment-reply' );
+ }
+
+ if ( is_singular() && wp_attachment_is_image() ) {
+ wp_enqueue_script( 'twentyfifteen-keyboard-image-navigation', get_template_directory_uri() . '/js/keyboard-image-navigation.js', array( 'jquery' ), '20141010' );
+ }
+
+ wp_enqueue_script( 'twentyfifteen-script', get_template_directory_uri() . '/js/functions.js', array( 'jquery' ), '20141212', true );
+ wp_localize_script( 'twentyfifteen-script', 'screenReaderText', array(
+ 'expand' => '<span class="screen-reader-text">' . __( 'expand child menu', 'twentyfifteen' ) . '</span>',
+ 'collapse' => '<span class="screen-reader-text">' . __( 'collapse child menu', 'twentyfifteen' ) . '</span>',
+ ) );
+}
+add_action( 'wp_enqueue_scripts', 'twentyfifteen_scripts' );
+
+/**
+ * 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] ) . '); }
+ .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 output.
+ * @param WP_Post $item Menu item object.
+ * @param int $depth Depth of the menu.
+ * @param array $args 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' );
+
+/**
+ * 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';
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