' . "\n" . '';
$main_close = '' . "\n" . '';
$header = '';
$footer = '';
register_block_template('sahcs//single-' . SAHCS_CPT, [
'title' => __('Single Case Study', 'siteaudithub-case-studies'),
'description' => __('Shows one case study with its hero, table of contents and sections.', 'siteaudithub-case-studies'),
'content' => $header . "\n" . $main_open . '' . $main_close . "\n" . $footer,
'post_types' => [SAHCS_CPT],
]);
register_block_template('sahcs//archive-' . SAHCS_CPT, [
'title' => __('Case Studies Listing', 'siteaudithub-case-studies'),
'description' => __('The main case studies page with category filters.', 'siteaudithub-case-studies'),
'content' => $header . "\n" . $main_open . '' . $main_close . "\n" . $footer,
]);
register_block_template('sahcs//taxonomy-' . SAHCS_TAX, [
'title' => __('Case Study Category', 'siteaudithub-case-studies'),
'description' => __('Case studies from one category.', 'siteaudithub-case-studies'),
'content' => $header . "\n" . $main_open . '' . $main_close . "\n" . $footer,
]);
}, 20);
/* ------------------------------------------------------------------
* Single case study layout + table of contents
* ---------------------------------------------------------------- */
/** Marks the end of the hero so the layout can place it above the body. */
add_filter('render_block_sahcs/hero', function ($html) {
return $html === '' ? $html : $html . '';
});
add_filter('the_content', 'sahcs_single_layout', 20);
function sahcs_single_layout($content) {
if (is_admin() || !is_singular(SAHCS_CPT) || sahcs_is_embedded()) {
return $content;
}
if ((int) get_the_ID() !== (int) get_queried_object_id()) {
return $content;
}
if (sahcs_uses_page_builder(get_the_ID())) {
return $content; // the page builder's own design is shown as made
}
// SEO plugins (Rank Math, Yoast…) and some themes run the_content inside
// or for excerpts. Those copies are never shown, so leave them
// alone and lay out only the content that is printed on the page.
if (doing_action('wp_head') || doing_filter('get_the_excerpt') || doing_filter('wp_trim_excerpt') || doing_filter('the_excerpt')) {
return $content;
}
if (strpos($content, 'sahcs-single"') !== false) {
return $content; // already laid out
}
$hero = '';
$body = $content;
$marker = '';
$pos = strpos($content, $marker);
if ($pos !== false) {
$hero = substr($content, 0, $pos);
$body = substr($content, $pos + strlen($marker));
} else {
// No Hero block in this case study: add a default one so the page
// always has its title (H1), categories and featured image.
$hero = str_replace($marker, '', render_block([
'blockName' => 'sahcs/hero',
'attrs' => [],
'innerBlocks' => [],
'innerHTML' => '',
'innerContent' => [],
]));
}
$toc = '';
// SEO: the case study title in the hero is the page's only H1. Any H1
// typed into the sections becomes an H2, so the outline stays clean.
$body = preg_replace(['#)#i', '##i'], [''], $body);
if (sahcs_toc_enabled_for(get_the_ID())) {
$result = sahcs_build_toc($body);
$body = $result['html'];
$toc = $result['toc'];
}
$out = '
' . sahcs_page_script();
$out .= $hero;
$out .= '
';
if ($toc !== '') {
$out .= '';
}
$out .= '
' . $body . '
';
$out .= '
';
return $out;
}
function sahcs_toc_enabled_for($post_id) {
$mode = get_post_meta($post_id, '_sahcs_toc', true);
if ($mode === 'on') {
return true;
}
if ($mode === 'off') {
return false;
}
return (bool) sahcs_get_settings('toc_enabled');
}
/**
* Adds ids to H2 (and H3) headings that don't have one, and builds the
* table of contents from them.
*/
function sahcs_build_toc($html) {
$depth = sahcs_get_settings('toc_depth') === 'h2' ? 'h2' : 'h2|h3';
$skip_classes = ['sahcs-card__title', 'sahcs-faq__qtext', 'sahcs-related__title', 'sahcs-grid-wrap__title', 'sahcs-toc-skip'];
$items = [];
$used = [];
// Ids already in the content (from sections or the author) are taken.
if (preg_match_all('/\sid=("|\')([^"\']+)\1/i', $html, $all)) {
foreach ($all[2] as $existing) {
$used[$existing] = true;
}
}
$html = preg_replace_callback('#<(' . $depth . ')\b([^>]*)>(.*?)#is', function ($m) use (&$items, &$used, $skip_classes) {
$attrs = $m[2];
foreach ($skip_classes as $c) {
if (strpos($attrs, $c) !== false) {
return $m[0];
}
}
$text = sahcs_trim(wp_strip_all_tags($m[3]));
if ($text === '') {
return $m[0];
}
if (preg_match('/\sid=("|\')([^"\']+)\1/i', $attrs, $idm)) {
$id = $idm[2];
unset($used[$id]); // reset so the duplicate check below doesn't trip on itself
} else {
$base = sanitize_title($text);
$base = $base !== '' ? $base : 'section';
$id = $base;
$n = 2;
while (isset($used[$id])) {
$id = $base . '-' . $n;
$n++;
}
$attrs .= ' id="' . esc_attr($id) . '"';
}
$used[$id] = true;
$items[] = ['level' => strtolower($m[1]), 'id' => $id, 'text' => $text];
return '<' . $m[1] . $attrs . '>' . $m[3] . '';
}, $html);
$min = max(1, (int) sahcs_get_settings('toc_min'));
$h2_count = count(array_filter($items, function ($i) {
return $i['level'] === 'h2';
}));
if ($h2_count < $min) {
return ['html' => $html, 'toc' => ''];
}
$title = sahcs_get_settings('toc_title');
$title = $title !== '' ? $title : __('On this page', 'siteaudithub-case-studies');
$toc = '';
$toc .= '' . esc_html($title) . '';
$toc .= '';
return ['html' => $html, 'toc' => $toc];
}