[4.4] Smart Search: Limiting highlighting of tokens

[jgerman-bot]

New language relevant PR in upstream repo: joomla/joomla-cms#41463 Here are the upstream changes:

Click to expand the diff!

diff --git a/administrator/components/com_finder/config.xml b/administrator/components/com_finder/config.xml
index 6cba75fd10fed..cf7e71c3a6a89 100644
--- a/administrator/components/com_finder/config.xml
+++ b/administrator/components/com_finder/config.xml
@@ -235,6 +235,7 @@
 			name="highlight_terms"
 			type="radio"
 			label="COM_FINDER_CONFIG_HILIGHT_CONTENT_SEARCH_TERMS_LABEL"
+			description="COM_FINDER_CONFIG_HIGHLIGHT_CONTENT_SEARCH_TERMS_DESC"
 			layout="joomla.form.field.radio.switcher"
 			default="1"
 			>
diff --git a/administrator/language/en-GB/com_finder.ini b/administrator/language/en-GB/com_finder.ini
index 5630de653ae4b..2b7d172351f08 100644
--- a/administrator/language/en-GB/com_finder.ini
+++ b/administrator/language/en-GB/com_finder.ini
@@ -17,6 +17,7 @@ COM_FINDER_CONFIG_FIELD_OPENSEARCH_NAME_LABEL="OpenSearch Name"
 COM_FINDER_CONFIG_FILTER_COMMONWORDS_LABEL="Filter Common Words"
 COM_FINDER_CONFIG_FILTER_NUMERICS_LABEL="Filter Numeric Terms"
 COM_FINDER_CONFIG_GATHER_SEARCH_STATISTICS_LABEL="Gather Search Statistics"
+COM_FINDER_CONFIG_HIGHLIGHT_CONTENT_SEARCH_TERMS_DESC="For performance reasons, this will not highlight more than 10 different terms in the search results."
 COM_FINDER_CONFIG_HILIGHT_CONTENT_SEARCH_TERMS_LABEL="Highlight Search Terms"
 COM_FINDER_CONFIG_IMAGE_CLASS_LABEL="Image Class"
 COM_FINDER_CONFIG_LANGUAGE_DEFAULT_DEFAULT_LANGUAGE="Default Site Language"
diff --git a/components/com_finder/tmpl/search/default_results.php b/components/com_finder/tmpl/search/default_results.php
index d54470559c899..288ab8964f0ea 100644
--- a/components/com_finder/tmpl/search/default_results.php
+++ b/components/com_finder/tmpl/search/default_results.php
@@ -55,12 +55,13 @@
 <?php // Activate the highlighter if enabled. ?>
 <?php if (!empty($this->query->highlight) && $this->params->get('highlight_terms', 1)) : ?>
     <?php
+        // Allow a maximum of 10 tokens to be highlighted. Otherwise the URL can get too long.
         $this->document->getWebAssetManager()->useScript('highlight');
         $this->document->addScriptOptions(
             'highlight',
             [[
                     'class'      => 'js-highlight',
-                    'highLight'  => $this->query->highlight,
+                    'highLight'  => array_slice($this->query->highlight, 0, 10),
             ]]
         );
     ?>