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.
*
* @link https://developer.wordpress.org/themes/functionality/featured-images-post-thumbnails/
*/
add_theme_support( 'post-thumbnails' );
// Custom Image Sizes
add_image_size( 'letterum-preview-image', 900, 9999 );
add_image_size( 'letterum-preview-image-crop', 900, 700, true ); //crop
add_image_size( 'letterum-featured-image', 1140, 9999 );
add_image_size( 'letterum-featured-image-crop', 1140, 650, true ); //crop
add_image_size( 'letterum-avatar', 100, 100, true ); //crop
/*
* This theme uses wp_nav_menu() in one location.
*/
register_nav_menus( array(
'primary' => esc_html__( 'Primary', 'letterum' ),
'social' => esc_html__( 'Social Links', 'letterum' ),
) );
/*
* Switch default core markup for search form, comment form, and comments
* to output valid HTML5.
*/
add_theme_support( 'html5', array(
'comment-form',
'comment-list',
'gallery',
'caption',
) );
// Set up the WordPress core custom background feature.
add_theme_support( 'custom-background', apply_filters( 'letterum_custom_background_args', array(
'default-color' => 'ffffff',
'default-image' => '',
) ) );
// Add theme support for selective refresh for widgets.
add_theme_support( 'customize-selective-refresh-widgets' );
/**
* Add support for core custom logo.
*
* @link https://codex.wordpress.org/Theme_Logo
*/
add_theme_support( 'custom-logo', array(
'height' => 180,
'width' => 650,
'flex-width' => true,
'flex-height' => true,
) );
/*
* Add support for Post Formats.
* See https://developer.wordpress.org/themes/functionality/post-formats/
*/
add_theme_support( 'post-formats', array(
'image',
) );
/**
* Add support for Excerpts to pages.
*/
add_post_type_support( 'page', array( 'excerpt' ) );
/**
* This theme styles the visual editor to resemble the theme style,
* specifically font, colors...
*/
// Add support for editor styles.
add_editor_style( array( 'assets/css/editor-style.css', letterum_fonts_url() ) );
// Add support for responsive embedded content.
add_theme_support( 'responsive-embeds' );
// Add wide image support
add_theme_support( 'align-wide' );
} // letterum_setup()
endif;
add_action( 'after_setup_theme', 'letterum_setup' );
/**
* Set the content width in pixels, based on the theme's design and stylesheet.
*
* Priority 0 to make it available to lower priority callbacks.
*
* @global int $content_width
*/
function letterum_content_width() {
$content_width = $GLOBALS['content_width'];
if ( letterum_is_frontpage() ) {
$content_width = 860;
}
if ( is_page() ) {
$content_width = 700;
}
// Check if is wide page template.
if ( is_page_template( array( 'templates/wide-page-template.php' ) ) ) {
$content_width = 1200;
}
/**
* Filter Letterum content width of the theme.
*
* @param $content_width integer
*/
$GLOBALS['content_width'] = apply_filters( 'letterum_content_width', $content_width );
}
add_action( 'template_redirect', 'letterum_content_width', 0 );
/**
* Register widget area.
*
* @link https://developer.wordpress.org/themes/functionality/sidebars/#registering-a-sidebar
*/
function letterum_widgets_init() {
register_sidebar( array(
'name' => esc_html__( 'Home/Archives Sidebar', 'letterum' ),
'id' => 'sidebar',
'description' => esc_html__( 'Appears in the sidebar of the home/archives posts page.', 'letterum' ),
'before_widget' => '',
'before_title' => '',
) );
register_sidebar( array(
'name' => esc_html__( 'Sidebar Single Post', 'letterum' ),
'id' => 'sidebar-single',
'description' => esc_html__( 'Appears in the sidebar of the single post.', 'letterum' ),
'before_widget' => '',
'before_title' => '',
) );
register_sidebar( array(
'name' => esc_html__( 'Sidebar Page', 'letterum' ),
'id' => 'sidebar-page',
'description' => esc_html__( 'Appears in the sidebar of the page.', 'letterum' ),
'before_widget' => '',
'before_title' => '',
) );
}
add_action( 'widgets_init', 'letterum_widgets_init' );
/**
* Register Google fonts.
*-----------------------------------------------------------------*/
function letterum_fonts_url() {
$fonts_url = '';
$_defaults = array( 'Roboto:300,400,400i,700,900', 'Roboto Slab:400,700' );
$font_families = apply_filters( 'letterum_font_families', $_defaults );
$subsets = apply_filters( 'letterum_font_subsets', 'cyrillic' );
if ( $font_families ) {
$font_families = array_unique( $font_families );
$query_args = array(
'family' => urlencode( implode( '|', $font_families ) ),
'subset' => urlencode( $subsets )
);
$fonts_url = esc_url( add_query_arg( $query_args, 'https://fonts.googleapis.com/css' ) );
}
return $fonts_url;
}
/**
* Add preconnect for Google Fonts.
*
* @param array $urls URLs to print for resource hints.
* @param string $relation_type The relation type the URLs are printed.
* @return array $urls URLs to print for resource hints.
*/
function letterum_resource_hints( $urls, $relation_type ) {
if ( wp_style_is( 'letterum-fonts', 'queue' ) && 'preconnect' === $relation_type ) {
$urls[] = array(
'href' => 'https://fonts.gstatic.com',
'crossorigin',
);
}
return $urls;
}
add_filter( 'wp_resource_hints', 'letterum_resource_hints', 10, 2 );
/**
* Gutenberg Editor Styles
*/
function letterum_gutenberg_editor_styles() {
wp_enqueue_style( 'letterum-gutenberg-editor-style', get_template_directory_uri() . '/assets/css/gutenberg-editor-style.css');
wp_enqueue_style( 'letterum-fonts', letterum_fonts_url(), array(), null );
$heading_font_name = get_theme_mod( 'heading_font_name' );
$paragraph_font_name = get_theme_mod( 'paragraph_font_name' );
$customize_css = '';
if ( $heading_font_name ) {
$customize_css .= '.editor-post-title__input, .editor-post-title textarea.editor-post-title__input {
font-family:"'.$heading_font_name.'", "Helvetica Neue", sans-serif;
}';
}
if ( $paragraph_font_name ) {
$customize_css .= '.editor-styles-wrapper, .editor-styles-wrapper p {
font-family:"'.$paragraph_font_name.'", "Helvetica Neue", sans-serif;
}';
}
wp_add_inline_style( 'letterum-gutenberg-editor-style', $customize_css );
}
add_action( 'enqueue_block_editor_assets', 'letterum_gutenberg_editor_styles' );
/**
* Enqueue scripts and styles.
*/
function letterum_scripts() {
wp_enqueue_style( 'letterum-style', get_stylesheet_uri() );
wp_enqueue_style( 'letterum-fonts', letterum_fonts_url(), array(), null );
// Add Genericons, used in the navigation stylesheet.
wp_enqueue_style( 'genericons-css', get_template_directory_uri() . '/genericons/genericons.css', array(), '3.4.1' );
wp_enqueue_script( 'letterum-main', get_theme_file_uri( '/assets/js/main.js' ), array( 'jquery', 'imagesloaded', 'masonry' ), LETTERUM_VERSION, true );
wp_enqueue_script( 'letterum-navigation', get_template_directory_uri() . '/assets/js/navigation.js', array( 'jquery' ), '24022018', true );
// Load the html5 shiv.
wp_enqueue_script( 'html5', get_theme_file_uri( '/assets/js/html5.js' ), array(), '3.7.3' );
wp_script_add_data( 'html5', 'conditional', 'lt IE 9' );
wp_enqueue_script( 'letterum-skip-link-focus-fix', get_template_directory_uri() . '/assets/js/skip-link-focus-fix.js', array(), '24022018', true );
if ( ( ! is_admin() ) && is_singular() && comments_open() && get_option( 'thread_comments' ) ) {
wp_enqueue_script( 'comment-reply' );
}
}
add_action( 'wp_enqueue_scripts', 'letterum_scripts' );
/**
* Handles JavaScript detection.
*
* Adds a `js` class to the root `` element when JavaScript is detected.
*
*/
function letterum_js_detection() {
echo "\n";
}
add_action( 'wp_head', 'letterum_js_detection', 0 );
/**
* Remove default WP gallery styles.
*/
add_filter( 'use_default_gallery_style', '__return_false' );
/**
* Replaces "[...]" (appended to automatically generated excerpts) with ... and
* a 'Continue reading' link.
*
* @return string 'Continue reading' link prepended with an ellipsis.
*/
function letterum_excerpt_more( $link ) {
if ( is_admin() ) {
return $link;
}
$link = sprintf( '%2$s',
esc_url( get_permalink( get_the_ID() ) ),
/* translators: %s: Name of current post */
sprintf( __( 'Continue reading "%s"', 'letterum' ), get_the_title( get_the_ID() ) )
);
return ' … ' . $link;
}
add_filter( 'excerpt_more', 'letterum_excerpt_more' );
/**
* Adding item to main menu
*/
function letterum_extra_menu_link( $items, $args ) {
if ( $args->theme_location == 'primary' ) {
if ( get_theme_mod( 'search_display' ) == 1 ) {
$items .= '';
}
}
return $items;
}
add_filter( 'wp_nav_menu_items', 'letterum_extra_menu_link', 10, 2 );
/**
* Custom template tags for this theme.
*/
require get_template_directory() . '/inc/template-tags.php';
/**
* Functions which enhance the theme by hooking into WordPress.
*/
require get_template_directory() . '/inc/template-functions.php';
/**
* Use front-page.php when Front page displays is set to a static page.
*
* @param string $template front-page.php.
*
* @return string The template to be used: blank if is_home() is true (defaults to index.php), else $template.
*/
function letterum_front_page( $template ) {
return is_home() ? '' : $template;
}
add_filter( 'frontpage_template', 'letterum_front_page' );
/**
* SVG icons functions and filters.
*/
require get_parent_theme_file_path( '/inc/icon-functions.php' );
/**
* Theme Customizer.
*/
require get_template_directory() . '/customizer/config.php';
/**
* Add a filter to the css output of the customizer.
* @see front-page template
*-----------------------------------------------------------------*/
function letterum_frontpage_margin( $output ) {
if( letterum( 'frontpage_margin' ) ) {
$output .= '#front-page-content.front-page-section { margin-bottom:'. esc_html( letterum( 'frontpage_margin' ) ) .'px; }';
}
return $output;
}
//add_filter( 'letterum_customizer_css_output', 'letterum_frontpage_margin' );
/**
* Helper functions for attachment page.
*/
require_once get_template_directory() . '/inc/attachment.php';
/**
* Load Jetpack compatibility file.
*/
if ( defined( 'JETPACK__VERSION' ) ) {
require get_template_directory() . '/inc/jetpack.php';
}
/**
* Add postMessage support for site title and description for the Theme Customizer.
*
* @param WP_Customize_Manager $wp_customize Theme Customizer object.
*/
function letterum_customize_register( $wp_customize ) {
$wp_customize->get_setting( 'blogname' )->transport = 'postMessage';
$wp_customize->get_setting( 'blogdescription' )->transport = 'postMessage';
if ( isset( $wp_customize->selective_refresh ) ) {
$wp_customize->selective_refresh->add_partial( 'blogname', array(
'selector' => '.site-title a',
'render_callback' => 'letterum_customize_partial_blogname',
) );
$wp_customize->selective_refresh->add_partial( 'blogdescription', array(
'selector' => '.site-description',
'render_callback' => 'letterum_customize_partial_blogdescription',
) );
}
}
add_action( 'customize_register', 'letterum_customize_register' );
/**
* Render the site title for the selective refresh partial.
*
* @return void
*/
function letterum_customize_partial_blogname() {
bloginfo( 'name' );
}
/**
* Render the site tagline for the selective refresh partial.
*
* @return void
*/
function letterum_customize_partial_blogdescription() {
bloginfo( 'description' );
}
/**
* Display upgrade to Pro version button on customizer
*/
require_once get_template_directory() . '/customizer-upsell/class-customize.php';
/**
* Filter the output of logo without link home
* when located on the homepage.
*/
function letterum_logo_link() {
$custom_logo_id = get_theme_mod( 'custom_logo' );
if( ! is_front_page() || ( ! is_home() && 'posts' == get_option( 'show_on_front' ) ) ) {
$html = sprintf( '%2$s',
esc_url( home_url( '/' ) ),
wp_get_attachment_image( $custom_logo_id, 'full', false, array(
'class' => 'custom-logo',
) )
);
} else {
$html = sprintf( '%s',
wp_get_attachment_image( $custom_logo_id, 'full', false, array(
'class' => 'custom-logo',
) )
);
}
return $html;
}
/**
* Load Dashboard welcome page.
*/
require_once( get_template_directory() . '/inc/admin/welcome-screen.php' );