236 lines
7.3 KiB
PHP
Executable file
236 lines
7.3 KiB
PHP
Executable file
<?php
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/**
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* Functions which enhance the theme by hooking into WordPress
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*
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* @package Seedlet
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* @since 1.0.0
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*/
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/**
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* Remove Gutenberg `Theme` Block Styles
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*/
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function seedlet_deregister_styles() {
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wp_dequeue_style( 'wp-block-library-theme' );
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}
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add_action( 'wp_print_styles', 'seedlet_deregister_styles', 100 );
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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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* @param array $classes Classes for the body element.
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* @return array
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*/
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function seedlet_body_classes( $classes ) {
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if ( is_singular() ) {
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// Adds `singular` to singular pages.
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$classes[] = 'singular';
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} else {
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// Adds `hfeed` to non singular pages.
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$classes[] = 'hfeed';
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}
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// Add a body class if main navigation is active.
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if ( has_nav_menu( 'primary' ) ) {
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$classes[] = 'has-main-navigation';
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}
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// Add a body class if the site header is hidden on the homepage.
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$hide_site_header = get_theme_mod( 'hide_site_header', false );
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if ( true === $hide_site_header && is_front_page() ) {
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$classes[] = 'hide-homepage-header';
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}
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// Add a body class if the footer elements are hidden on the homepage.
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$hide_site_footer = get_theme_mod( 'hide_site_footer', false );
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if ( true === $hide_site_footer && is_front_page() ) {
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$classes[] = 'hide-homepage-footer';
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}
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return $classes;
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}
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add_filter( 'body_class', 'seedlet_body_classes' );
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/**
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* Adds custom class to the array of posts classes.
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*/
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function seedlet_post_classes( $classes, $class, $post_id ) {
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$classes[] = 'entry';
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return $classes;
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}
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add_filter( 'post_class', 'seedlet_post_classes', 10, 3 );
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/**
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* Add a pingback url auto-discovery header for single posts, pages, or attachments.
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*/
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function seedlet_pingback_header() {
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if ( is_singular() && pings_open() ) {
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echo '<link rel="pingback" href="', esc_url( get_bloginfo( 'pingback_url' ) ), '">';
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}
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}
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add_action( 'wp_head', 'seedlet_pingback_header' );
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/**
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* Changes comment form default fields.
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*/
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function seedlet_comment_form_defaults( $defaults ) {
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$comment_field = $defaults['comment_field'];
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// Adjust height of comment form.
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$defaults['comment_field'] = preg_replace( '/rows="\d+"/', 'rows="5"', $comment_field );
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return $defaults;
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}
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add_filter( 'comment_form_defaults', 'seedlet_comment_form_defaults' );
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/**
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* Filters the default archive titles.
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*/
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function seedlet_get_the_archive_title( $title, $original_title, $prefix ) {
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if ( is_category() ) {
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$prefix = '<span class="archive-prefix">' . __( 'Category Archives: ', 'seedlet' ) . '</span>';
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$title = '<span class="page-description">' . single_term_title( '', false ) . '</span>';
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} elseif ( is_tag() ) {
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$prefix = '<span class="archive-prefix">' . __( 'Tag Archives: ', 'seedlet' ) . ' </span>';
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$title = '<span class="page-description">' . single_term_title( '', false ) . '</span>';
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} elseif ( is_author() ) {
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$prefix = '<span class="archive-prefix">' . __( 'Author Archives: ', 'seedlet' ) . ' </span>';
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$title = '<span class="page-description">' . get_the_author_meta( 'display_name' ) . '</span>';
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} elseif ( is_year() ) {
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$prefix = '<span class="archive-prefix">' . __( 'Yearly Archives: ', 'seedlet' ) . ' </span>';
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$title = '<span class="page-description">' . get_the_date( _x( 'Y', 'yearly archives date format', 'seedlet' ) ) . '</span>';
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} elseif ( is_month() ) {
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$prefix = '<span class="archive-prefix">' . __( 'Monthly Archives: ', 'seedlet' ) . ' </span>';
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$title = '<span class="page-description">' . get_the_date( _x( 'F Y', 'monthly archives date format', 'seedlet' ) ) . '</span>';
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} elseif ( is_day() ) {
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$prefix = '<span class="archive-prefix">' . __( 'Daily Archives: ', 'seedlet' ) . ' </span>';
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$title = '<span class="page-description">' . get_the_date() . '</span>';
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} elseif ( is_post_type_archive() ) {
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$prefix = '';
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$cpt = get_post_type_object( get_queried_object()->name );
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/* translators: %s: Post type singular name */
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$title = sprintf(
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esc_html__( '%s Archives', 'seedlet' ),
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$cpt->labels->singular_name
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);
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} elseif ( is_tax() ) {
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$prefix = '';
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$tax = get_taxonomy( get_queried_object()->taxonomy );
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/* translators: %s: Taxonomy singular name */
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$title = sprintf(
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esc_html__( '%s Archives', 'seedlet' ),
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$tax->labels->singular_name
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);
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} else {
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$prefix = '';
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$title = '<span class="archive-prefix">' . __( 'Archives: ', 'seedlet' ) . ' </span>';
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}
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return '<h1 class="page-title">' . $prefix . $title . '</h1>';
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}
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add_filter( 'get_the_archive_title', 'seedlet_get_the_archive_title', 10, 3 );
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/**
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* Determines if post thumbnail can be displayed.
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*/
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function seedlet_can_show_post_thumbnail() {
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return apply_filters( 'seedlet_can_show_post_thumbnail', ! post_password_required() && ! is_attachment() && has_post_thumbnail() );
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}
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/**
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* Returns the size for avatars used in the theme.
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*/
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function seedlet_get_avatar_size() {
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return 60;
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}
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/**
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* Returns true if comment is by author of the post.
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*
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* @see get_comment_class()
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*/
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function seedlet_is_comment_by_post_author( $comment = null ) {
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if ( is_object( $comment ) && $comment->user_id > 0 ) {
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$user = get_userdata( $comment->user_id );
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$post = get_post( $comment->comment_post_ID );
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if ( ! empty( $user ) && ! empty( $post ) ) {
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return $comment->user_id === $post->post_author;
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}
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}
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return false;
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}
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/**
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* WCAG 2.0 Attributes for Dropdown Menus
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*
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* Adjustments to menu attributes tot support WCAG 2.0 recommendations
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* for flyout and dropdown menus.
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*
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* @ref https://www.w3.org/WAI/tutorials/menus/flyout/
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*/
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function seedlet_nav_menu_link_attributes( $atts, $item, $args, $depth ) {
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// Add [aria-haspopup] and [aria-expanded] to menu items that have children
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$item_has_children = in_array( 'menu-item-has-children', $item->classes );
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if ( $item_has_children ) {
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$atts['aria-haspopup'] = 'true';
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$atts['aria-expanded'] = 'false';
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}
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return $atts;
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}
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add_filter( 'nav_menu_link_attributes', 'seedlet_nav_menu_link_attributes', 10, 4 );
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/*
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* Create the continue reading link
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*/
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function seedlet_continue_reading_link() {
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if ( ! is_admin() ) {
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$continue_reading = sprintf(
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/* translators: %s: Name of current post. */
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wp_kses( __( 'Continue reading %s', 'seedlet' ), array( 'span' => array( 'class' => array() ) ) ),
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the_title( '<span class="screen-reader-text">"', '"</span>', false )
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);
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return '<a class="more-link" href="' . esc_url( get_permalink() ) . '">' . $continue_reading . '</a>';
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}
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}
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// Filter the excerpt more link
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add_filter( 'excerpt_more', 'seedlet_continue_reading_link' );
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// Filter the content more link
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add_filter( 'the_content_more_link', 'seedlet_continue_reading_link' );
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/**
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* Add a dropdown icon to top-level menu items.
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*
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* @param string $output Nav menu item start element.
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* @param object $item Nav menu item.
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* @param int $depth Depth.
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* @param object $args Nav menu args.
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* @return string Nav menu item start element.
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* Add a dropdown icon to top-level menu items
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*/
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function seedlet_add_dropdown_icons( $output, $item, $depth, $args ) {
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// Only add class to 'top level' items on the 'primary' menu.
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if ( ! isset( $args->theme_location ) || 'primary' !== $args->theme_location ) {
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return $output;
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}
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if ( 'primary' == $args->theme_location && $depth === 0 ) {
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if ( in_array( 'menu-item-has-children', $item->classes, true ) ) {
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// Add SVG icon to parent items.
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$output .= seedlet_get_icon_svg( 'dropdown', 24 );
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}
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}
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return $output;
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}
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add_filter( 'walker_nav_menu_start_el', 'seedlet_add_dropdown_icons', 10, 4 );
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