ISTWCMS-4493: check for sidebar in preprocess node and add class if any section has full width

uw_cfg_common.module

@@ -207,6 +207,32 @@ function uw_cfg_common_preprocess_node(&$variables) {
   // an array to future proof, if there are more pages later.
   $paths_for_content_moderation = ['latest'];
 
+  // ISTWCMS-4493: adding class if section has full width.
+  // If there is a sidebar on the node, check all sections for full width.
+  if (isset($variables['sidebar'])) {
+
+    // Get the layouts from the node.
+    $layouts = $variables['node']->layout_builder__layout->getValue();
+
+    // Step through each of the layouts and check for full width.
+    foreach ($layouts as $layout) {
+
+      // Get the layout settings from the section.
+      $settings = $layout['section']->getLayoutSettings();
+
+      // If the layout builder style is set to full width, then set
+      // the classes variable for the node and exit the loop.
+      if ($settings['layout_builder_styles_style'] == "uw_lbs_full_width") {
+
+        // Add a class to the node for full width on a section.
+        $variables['attributes']['class'][] = 'uw-section-has-full-width';
+
+        // Break out of the loop to save computational time.
+        break;
+      }
+    }
+  }
+
   // Check if we are to add the content moderation place.
   if (in_array(end($path), $paths_for_content_moderation)) {