made module advanced_search aware

README.md

@@ -6,7 +6,9 @@ so matches are highlighted with no extra JavaScript.
 
 ## How it works
 
-1. `hook_views_pre_render()` appends `?search_api_fulltext=<term>` to the
+1. `hook_views_pre_render()` reads the search term (from Advanced Search's
+   `a[N][v]` parameters, or a plain Search API fulltext filter) and appends
+   `?search_api_fulltext=<term>` to the
    "Link this field to its item" links in the `solr_search_content` view.
 2. `hook_preprocess_mirador()` reads that parameter and sets
    `windows[0].defaultSearchQuery` on the viewer's Mirador config.

mirador_search_highlight.module

@@ -5,6 +5,8 @@
  * Runs a IIIF content search in Mirador on load from a passed search term.
  */
 
+use Drupal\advanced_search\AdvancedSearchQuery;
+use Drupal\advanced_search\AdvancedSearchQueryTerm;
 use Drupal\views\ViewExecutable;
 
 /**
@@ -29,13 +31,8 @@ function mirador_search_highlight_views_pre_render(ViewExecutable $view) {
   if (!in_array($view->id(), MIRADOR_SEARCH_HIGHLIGHT_VIEWS, TRUE)) {
     return;
   }
-  if (!method_exists($view->query, 'getOriginalKeys')) {
-    return;
-  }
-  // Parse modes may turn the keys into an array; only the raw string is
-  // useful as a Mirador search query.
-  $keys = $view->query->getOriginalKeys();
-  if (!is_string($keys) || trim($keys) === '') {
+  $keys = _mirador_search_highlight_get_keys($view);
+  if ($keys === '') {
     return;
   }
 
@@ -45,9 +42,46 @@ function mirador_search_highlight_views_pre_render(ViewExecutable $view) {
       // links, and an explicit 'query' replaces the item URL's query.
       // UrlHelper::buildQuery() encodes the value before Views token
       // replacement, so user input is never treated as Twig.
-      $handler->options['alter']['query'] = [MIRADOR_SEARCH_HIGHLIGHT_PARAM => trim($keys)];
+      $handler->options['alter']['query'] = [MIRADOR_SEARCH_HIGHLIGHT_PARAM => $keys];
+    }
+  }
+}
+
+/**
+ * Gets the search term the view was run with.
+ *
+ * @param \Drupal\views\ViewExecutable $view
+ *   The search view.
+ *
+ * @return string
+ *   The search term, or an empty string if there is none.
+ */
+function _mirador_search_highlight_get_keys(ViewExecutable $view) {
+  // Advanced Search passes terms as a[N][v] and writes them straight into the
+  // Solr query, so the Search API query never has keys set. Read the terms
+  // the same way it does, skipping excluded ("IS NOT") terms.
+  if (class_exists(AdvancedSearchQuery::class) && ($request = $view->getRequest())) {
+    $values = [];
+    foreach ((new AdvancedSearchQuery())->getTerms($request) as $term) {
+      if ($term->getInclude()) {
+        $values[] = trim((string) ($term->toQueryParams()[AdvancedSearchQueryTerm::VALUE_QUERY_PARAMETER] ?? ''));
+      }
+    }
+    $keys = implode(' ', array_filter($values, 'strlen'));
+    if ($keys !== '') {
+      return $keys;
+    }
+  }
+
+  // Fall back to a plain Search API fulltext filter. Parse modes may turn the
+  // keys into an array; only the raw string is useful to Mirador.
+  if (method_exists($view->query, 'getOriginalKeys')) {
+    $keys = $view->query->getOriginalKeys();
+    if (is_string($keys)) {
+      return trim($keys);
     }
   }
+  return '';
 }
 
 /**