475 lines
16 KiB
PHP
475 lines
16 KiB
PHP
<?php
|
|
/**
|
|
* Functions which enhance the theme by hooking into WordPress
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Twenty_Twenty_One
|
|
* @since 1.0.0
|
|
*/
|
|
|
|
/**
|
|
* Remove Gutenberg `Theme` Block Styles.
|
|
*
|
|
* @since 1.0.0
|
|
*/
|
|
function twenty_twenty_one_deregister_styles() {
|
|
wp_dequeue_style( 'wp-block-library-theme' );
|
|
}
|
|
add_action( 'wp_print_styles', 'twenty_twenty_one_deregister_styles', 100 );
|
|
|
|
/**
|
|
* Adds custom classes to the array of body classes.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param array $classes Classes for the body element.
|
|
*
|
|
* @return array
|
|
*/
|
|
function twenty_twenty_one_body_classes( $classes ) {
|
|
|
|
// Adds `singular` to singular pages, and `hfeed` to all other pages.
|
|
$classes[] = is_singular() ? 'singular' : 'hfeed';
|
|
|
|
// Add a body class if main navigation is active.
|
|
if ( has_nav_menu( 'primary' ) ) {
|
|
$classes[] = 'has-main-navigation';
|
|
}
|
|
|
|
// Add a body class if there are no footer widgets.
|
|
if ( ! is_active_sidebar( 'sidebar-1' ) ) {
|
|
$classes[] = 'no-widgets';
|
|
}
|
|
|
|
return $classes;
|
|
}
|
|
add_filter( 'body_class', 'twenty_twenty_one_body_classes' );
|
|
|
|
/**
|
|
* Adds custom class to the array of posts classes.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param array $classes An array of CSS classes.
|
|
*
|
|
* @return array
|
|
*/
|
|
function twenty_twenty_one_post_classes( $classes ) {
|
|
$classes[] = 'entry';
|
|
|
|
return $classes;
|
|
}
|
|
add_filter( 'post_class', 'twenty_twenty_one_post_classes', 10, 3 );
|
|
|
|
/**
|
|
* Add a pingback url auto-discovery header for single posts, pages, or attachments.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @return void
|
|
*/
|
|
function twenty_twenty_one_pingback_header() {
|
|
if ( is_singular() && pings_open() ) {
|
|
echo '<link rel="pingback" href="', esc_url( get_bloginfo( 'pingback_url' ) ), '">';
|
|
}
|
|
}
|
|
add_action( 'wp_head', 'twenty_twenty_one_pingback_header' );
|
|
|
|
/**
|
|
* Changes comment form default fields.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param array $defaults The form defaults.
|
|
*
|
|
* @return array
|
|
*/
|
|
function twenty_twenty_one_comment_form_defaults( $defaults ) {
|
|
|
|
// Adjust height of comment form.
|
|
$defaults['comment_field'] = preg_replace( '/rows="\d+"/', 'rows="5"', $defaults['comment_field'] );
|
|
|
|
return $defaults;
|
|
}
|
|
add_filter( 'comment_form_defaults', 'twenty_twenty_one_comment_form_defaults' );
|
|
|
|
/**
|
|
* Filters the default archive titles.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @return string
|
|
*/
|
|
function twenty_twenty_one_get_the_archive_title() {
|
|
if ( is_category() ) {
|
|
return sprintf(
|
|
/* translators: %s: The term title. */
|
|
esc_html__( 'Category Archives: %s', 'twentytwentyone' ),
|
|
'<span class="page-description">' . single_term_title( '', false ) . '</span>'
|
|
);
|
|
}
|
|
|
|
if ( is_tag() ) {
|
|
return sprintf(
|
|
/* translators: %s: The term title. */
|
|
esc_html__( 'Tag Archives: %s', 'twentytwentyone' ),
|
|
'<span class="page-description">' . single_term_title( '', false ) . '</span>'
|
|
);
|
|
}
|
|
|
|
if ( is_author() ) {
|
|
return sprintf(
|
|
/* translators: %s: The author name. */
|
|
esc_html__( 'Author Archives: %s', 'twentytwentyone' ),
|
|
'<span class="page-description">' . get_the_author_meta( 'display_name' ) . '</span>'
|
|
);
|
|
}
|
|
|
|
if ( is_year() ) {
|
|
return sprintf(
|
|
/* translators: %s: The year. */
|
|
esc_html__( 'Yearly Archives: %s', 'twentytwentyone' ),
|
|
'<span class="page-description">' . get_the_date( _x( 'Y', 'yearly archives date format', 'twentytwentyone' ) ) . '</span>'
|
|
);
|
|
}
|
|
|
|
if ( is_month() ) {
|
|
return sprintf(
|
|
/* translators: %s: The month. */
|
|
esc_html__( 'Monthly Archives: %s', 'twentytwentyone' ),
|
|
'<span class="page-description">' . get_the_date( _x( 'F Y', 'monthly archives date format', 'twentytwentyone' ) ) . '</span>'
|
|
);
|
|
}
|
|
|
|
if ( is_day() ) {
|
|
return sprintf(
|
|
/* translators: %s: The day. */
|
|
esc_html__( 'Daily Archives: %s', 'twentytwentyone' ),
|
|
'<span class="page-description">' . get_the_date() . '</span>'
|
|
);
|
|
}
|
|
|
|
if ( is_post_type_archive() ) {
|
|
return sprintf(
|
|
/* translators: %s: Post type singular name. */
|
|
esc_html__( '%s Archives', 'twentytwentyone' ),
|
|
get_post_type_object( get_queried_object()->name )->labels->singular_name
|
|
);
|
|
}
|
|
|
|
if ( is_tax() ) {
|
|
return sprintf(
|
|
/* translators: %s: Taxonomy singular name. */
|
|
esc_html__( '%s Archives', 'twentytwentyone' ),
|
|
get_taxonomy( get_queried_object()->taxonomy )->labels->singular_name
|
|
);
|
|
}
|
|
|
|
return esc_html__( 'Archives:', 'twentytwentyone' );
|
|
}
|
|
add_filter( 'get_the_archive_title', 'twenty_twenty_one_get_the_archive_title' );
|
|
|
|
/**
|
|
* Determines if post thumbnail can be displayed.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @return bool
|
|
*/
|
|
function twenty_twenty_one_can_show_post_thumbnail() {
|
|
return apply_filters(
|
|
'twenty_twenty_one_can_show_post_thumbnail',
|
|
! post_password_required() && ! is_attachment() && has_post_thumbnail()
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Returns the size for avatars used in the theme.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @return int
|
|
*/
|
|
function twenty_twenty_one_get_avatar_size() {
|
|
return 60;
|
|
}
|
|
|
|
/**
|
|
* Creates continue reading text
|
|
*/
|
|
function twenty_twenty_one_continue_reading_text() {
|
|
$continue_reading = sprintf(
|
|
/* translators: %s: Name of current post. */
|
|
esc_html__( 'Continue reading %s', 'twentytwentyone' ),
|
|
the_title( '<span class="screen-reader-text">', '</span>', false )
|
|
);
|
|
|
|
return $continue_reading;
|
|
}
|
|
|
|
/**
|
|
* Create the continue reading link for excerpt.
|
|
*/
|
|
function twenty_twenty_one_continue_reading_link_excerpt() {
|
|
if ( ! is_admin() ) {
|
|
return '… <a class="more-link" href="' . esc_url( get_permalink() ) . '">' . twenty_twenty_one_continue_reading_text() . '</a>';
|
|
}
|
|
}
|
|
|
|
// Filter the excerpt more link.
|
|
add_filter( 'excerpt_more', 'twenty_twenty_one_continue_reading_link_excerpt' );
|
|
|
|
/**
|
|
* Create the continue reading link.
|
|
*/
|
|
function twenty_twenty_one_continue_reading_link() {
|
|
if ( ! is_admin() ) {
|
|
return '<div class="more-link-container"><a class="more-link" href="' . esc_url( get_permalink() ) . '">' . twenty_twenty_one_continue_reading_text() . '</a></div>';
|
|
}
|
|
}
|
|
|
|
// Filter the excerpt more link.
|
|
add_filter( 'the_content_more_link', 'twenty_twenty_one_continue_reading_link' );
|
|
|
|
if ( ! function_exists( 'twenty_twenty_one_post_title' ) ) {
|
|
/**
|
|
* Add a title to posts that are missing titles.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param string $title The title.
|
|
*
|
|
* @return string
|
|
*/
|
|
function twenty_twenty_one_post_title( $title ) {
|
|
return '' === $title ? esc_html__( 'Untitled', 'twentytwentyone' ) : $title;
|
|
}
|
|
}
|
|
add_filter( 'the_title', 'twenty_twenty_one_post_title' );
|
|
|
|
/**
|
|
* Gets the SVG code for a given icon.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param string $group The icon group.
|
|
* @param string $icon The icon.
|
|
* @param int $size The icon size in pixels.
|
|
*
|
|
* @return string
|
|
*/
|
|
function twenty_twenty_one_get_icon_svg( $group, $icon, $size = 24 ) {
|
|
return Twenty_Twenty_One_SVG_Icons::get_svg( $group, $icon, $size );
|
|
}
|
|
|
|
/**
|
|
* Changes the default navigation arrows to svg icons
|
|
*
|
|
* @param string $calendar_output The generated HTML of the calendar.
|
|
*
|
|
* @return string
|
|
*/
|
|
function twenty_twenty_one_change_calendar_nav_arrows( $calendar_output ) {
|
|
$calendar_output = str_replace( '« ', twenty_twenty_one_get_icon_svg( 'ui', 'arrow_left' ), $calendar_output );
|
|
$calendar_output = str_replace( ' »', twenty_twenty_one_get_icon_svg( 'ui', 'arrow_right' ), $calendar_output );
|
|
return $calendar_output;
|
|
}
|
|
add_filter( 'get_calendar', 'twenty_twenty_one_change_calendar_nav_arrows' );
|
|
|
|
/**
|
|
* Get custom CSS.
|
|
*
|
|
* Return CSS for non-latin language, if available, or null
|
|
*
|
|
* @param string $type Whether to return CSS for the "front-end", "block-editor" or "classic-editor".
|
|
*
|
|
* @return string
|
|
*/
|
|
function twenty_twenty_one_get_non_latin_css( $type = 'front-end' ) {
|
|
|
|
// Fetch site locale.
|
|
$locale = get_bloginfo( 'language' );
|
|
|
|
// Define fallback fonts for non-latin languages.
|
|
$font_family = apply_filters(
|
|
'twenty_twenty_one_get_localized_font_family_types',
|
|
array(
|
|
|
|
// Arabic.
|
|
'ar' => array( 'Tahoma', 'Arial', 'sans-serif' ),
|
|
'ary' => array( 'Tahoma', 'Arial', 'sans-serif' ),
|
|
'azb' => array( 'Tahoma', 'Arial', 'sans-serif' ),
|
|
'ckb' => array( 'Tahoma', 'Arial', 'sans-serif' ),
|
|
'fa-IR' => array( 'Tahoma', 'Arial', 'sans-serif' ),
|
|
'haz' => array( 'Tahoma', 'Arial', 'sans-serif' ),
|
|
'ps' => array( 'Tahoma', 'Arial', 'sans-serif' ),
|
|
|
|
// Chinese Simplified (China) - Noto Sans SC.
|
|
'zh-CN' => array( '\'PingFang SC\'', '\'Helvetica Neue\'', '\'Microsoft YaHei New\'', '\'STHeiti Light\'', 'sans-serif' ),
|
|
|
|
// Chinese Traditional (Taiwan) - Noto Sans TC.
|
|
'zh-TW' => array( '\'PingFang TC\'', '\'Helvetica Neue\'', '\'Microsoft YaHei New\'', '\'STHeiti Light\'', 'sans-serif' ),
|
|
|
|
// Chinese (Hong Kong) - Noto Sans HK.
|
|
'zh-HK' => array( '\'PingFang HK\'', '\'Helvetica Neue\'', '\'Microsoft YaHei New\'', '\'STHeiti Light\'', 'sans-serif' ),
|
|
|
|
// Cyrillic.
|
|
'bel' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'bg-BG' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'kk' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'mk-MK' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'mn' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'ru-RU' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'sah' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'sr-RS' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'tt-RU' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
'uk' => array( '\'Helvetica Neue\'', 'Helvetica', '\'Segoe UI\'', 'Arial', 'sans-serif' ),
|
|
|
|
// Devanagari.
|
|
'bn-BD' => array( 'Arial', 'sans-serif' ),
|
|
'hi-IN' => array( 'Arial', 'sans-serif' ),
|
|
'mr' => array( 'Arial', 'sans-serif' ),
|
|
'ne-NP' => array( 'Arial', 'sans-serif' ),
|
|
|
|
// Greek.
|
|
'el' => array( '\'Helvetica Neue\', Helvetica, Arial, sans-serif' ),
|
|
|
|
// Gujarati.
|
|
'gu' => array( 'Arial', 'sans-serif' ),
|
|
|
|
// Hebrew.
|
|
'he-IL' => array( '\'Arial Hebrew\'', 'Arial', 'sans-serif' ),
|
|
|
|
// Japanese.
|
|
'ja' => array( 'sans-serif' ),
|
|
|
|
// Korean.
|
|
'ko-KR' => array( '\'Apple SD Gothic Neo\'', '\'Malgun Gothic\'', '\'Nanum Gothic\'', 'Dotum', 'sans-serif' ),
|
|
|
|
// Thai.
|
|
'th' => array( '\'Sukhumvit Set\'', '\'Helvetica Neue\'', 'Helvetica', 'Arial', 'sans-serif' ),
|
|
|
|
// Vietnamese.
|
|
'vi' => array( '\'Libre Franklin\'', 'sans-serif' ),
|
|
|
|
)
|
|
);
|
|
|
|
// Return if the selected language has no fallback fonts.
|
|
if ( empty( $font_family[ $locale ] ) ) {
|
|
return '';
|
|
}
|
|
|
|
// Define elements to apply fallback fonts to.
|
|
$elements = apply_filters(
|
|
'twenty_twenty_one_get_localized_font_family_elements',
|
|
array(
|
|
'front-end' => array( 'body', 'input', 'textarea', 'button', '.button', '.faux-button', '.wp-block-button__link', '.wp-block-file__button', '.has-drop-cap:not(:focus)::first-letter', '.has-drop-cap:not(:focus)::first-letter', '.entry-content .wp-block-archives', '.entry-content .wp-block-categories', '.entry-content .wp-block-cover-image', '.entry-content .wp-block-latest-comments', '.entry-content .wp-block-latest-posts', '.entry-content .wp-block-pullquote', '.entry-content .wp-block-quote.is-large', '.entry-content .wp-block-quote.is-style-large', '.entry-content .wp-block-archives *', '.entry-content .wp-block-categories *', '.entry-content .wp-block-latest-posts *', '.entry-content .wp-block-latest-comments *', '.entry-content p', '.entry-content ol', '.entry-content ul', '.entry-content dl', '.entry-content dt', '.entry-content cite', '.entry-content figcaption', '.entry-content .wp-caption-text', '.comment-content p', '.comment-content ol', '.comment-content ul', '.comment-content dl', '.comment-content dt', '.comment-content cite', '.comment-content figcaption', '.comment-content .wp-caption-text', '.widget_text p', '.widget_text ol', '.widget_text ul', '.widget_text dl', '.widget_text dt', '.widget-content .rssSummary', '.widget-content cite', '.widget-content figcaption', '.widget-content .wp-caption-text' ),
|
|
'block-editor' => array( '.editor-styles-wrapper > *', '.editor-styles-wrapper p', '.editor-styles-wrapper ol', '.editor-styles-wrapper ul', '.editor-styles-wrapper dl', '.editor-styles-wrapper dt', '.editor-post-title__block .editor-post-title__input', '.editor-styles-wrapper .wp-block h1', '.editor-styles-wrapper .wp-block h2', '.editor-styles-wrapper .wp-block h3', '.editor-styles-wrapper .wp-block h4', '.editor-styles-wrapper .wp-block h5', '.editor-styles-wrapper .wp-block h6', '.editor-styles-wrapper .has-drop-cap:not(:focus)::first-letter', '.editor-styles-wrapper cite', '.editor-styles-wrapper figcaption', '.editor-styles-wrapper .wp-caption-text' ),
|
|
'classic-editor' => array( 'body#tinymce.wp-editor', 'body#tinymce.wp-editor p', 'body#tinymce.wp-editor ol', 'body#tinymce.wp-editor ul', 'body#tinymce.wp-editor dl', 'body#tinymce.wp-editor dt', 'body#tinymce.wp-editor figcaption', 'body#tinymce.wp-editor .wp-caption-text', 'body#tinymce.wp-editor .wp-caption-dd', 'body#tinymce.wp-editor cite', 'body#tinymce.wp-editor table' ),
|
|
)
|
|
);
|
|
|
|
// Return if the specified type doesn't exist.
|
|
if ( empty( $elements[ $type ] ) ) {
|
|
return '';
|
|
}
|
|
|
|
// Include file if function doesn't exist.
|
|
if ( ! function_exists( 'twenty_twenty_one_generate_css' ) ) {
|
|
require_once get_theme_file_path( 'inc/custom-css.php' ); // phpcs:ignore WPThemeReview.CoreFunctionality.FileInclude.FileIncludeFound
|
|
}
|
|
|
|
// Return the specified styles.
|
|
return twenty_twenty_one_generate_css(
|
|
implode( ',', $elements[ $type ] ),
|
|
'font-family',
|
|
implode( ',', $font_family[ $locale ] ),
|
|
null,
|
|
null,
|
|
false
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Print the first instance of a block in the content, and then break away.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param string $block_name The full block type name, or a partial match.
|
|
* Example: `core/image`, `core-embed/*`.
|
|
* @param string|null $content The content we need to search in. Use null for get_the_content().
|
|
* @param int $instances How many instances of the block we want to print. Defaults to 1.
|
|
*
|
|
* @return bool Returns true if a block was located & printed, otherwise false.
|
|
*/
|
|
function twenty_twenty_one_print_first_instance_of_block( $block_name, $content = null, $instances = 1 ) {
|
|
$instances_count = 0;
|
|
$blocks_content = '';
|
|
|
|
if ( ! $content ) {
|
|
$content = get_the_content();
|
|
}
|
|
|
|
// Parse blocks in the content.
|
|
$blocks = parse_blocks( $content );
|
|
|
|
// Loop blocks.
|
|
foreach ( $blocks as $block ) {
|
|
|
|
// Sanity check.
|
|
if ( ! isset( $block['blockName'] ) ) {
|
|
continue;
|
|
}
|
|
|
|
// Check if this the block we're looking for.
|
|
$is_matching_block = false;
|
|
|
|
// If the block ends with *, we should just try to match the first portion.
|
|
if ( '*' === $block_name[-1] ) {
|
|
$is_matching_block = 0 === strpos( $block['blockName'], rtrim( $block_name, '*' ) );
|
|
} else {
|
|
$is_matching_block = $block_name === $block['blockName'];
|
|
}
|
|
|
|
if ( $is_matching_block ) {
|
|
// Increment count.
|
|
$instances_count++;
|
|
|
|
// Add the block HTML.
|
|
$blocks_content .= render_block( $block );
|
|
|
|
// Break the loop if we've reached the $instances count.
|
|
if ( $instances_count >= $instances ) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( $blocks_content ) {
|
|
echo apply_filters( 'the_content', $blocks_content ); // phpcs:ignore WordPress.Security.EscapeOutput
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Retrieve protected post password form content.
|
|
*
|
|
* @since 1.0.0
|
|
*
|
|
* @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
|
|
* @return string HTML content for password form for password protected post.
|
|
*/
|
|
function twenty_twenty_one_password_form( $post = 0 ) {
|
|
$post = get_post( $post );
|
|
$label = 'pwbox-' . ( empty( $post->ID ) ? wp_rand() : $post->ID );
|
|
$output = '<p class="post-password-message">' . esc_html__( 'This content is password protected. Please enter a password to view.', 'twentytwentyone' ) . '</p>
|
|
<form action="' . esc_url( site_url( 'wp-login.php?action=postpass', 'login_post' ) ) . '" class="post-password-form" method="post">
|
|
<label class="post-password-form__label" for="' . esc_attr( $label ) . '">' . esc_html__( 'Password', 'twentytwentyone' ) . '</label><input class="post-password-form__input" name="post_password" id="' . esc_attr( $label ) . '" type="password" size="20" /><input type="submit" class="post-password-form__submit" name="' . esc_attr__( 'Submit', 'twentytwentyone' ) . '" value="' . esc_attr_x( 'Enter', 'post password form', 'twentytwentyone' ) . '" /></form>
|
|
';
|
|
return $output;
|
|
}
|
|
add_filter( 'the_password_form', 'twenty_twenty_one_password_form' );
|