convivial-bootstrap-32582: Replace the deicision tree implementation …

…with opensource decision_tree_library.

base/scss/style.scss

@@ -82,6 +82,7 @@
 @import "components/content-tabs/content-tabs";
 @import "components/cta-link/cta-link";
 @import "components/datatables/datatables";
+@import "components/decision-tree/decision-tree";
 @import "components/diff/diff";
 @import "components/eu-cookie-compliance/eu-cookie-compliance";
 @import "components/external-link/external-link";

components/decision-tree/_decision-tree.scss

@@ -0,0 +1,41 @@
+*[class*='step__'] {
+  margin-top: 1.5rem;
+}
+
+.step__button--back {
+  margin-right: 0.5rem;
+}
+
+.decision-tree .step {
+  ul {
+    @extend .title;
+
+    padding: 0;
+    margin: 0;
+
+    li {
+      @extend .title__title;
+
+      padding: 0;
+      list-style: none;
+
+      + li {
+        border-top: 0;
+      }
+    }
+
+    a {
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      padding: 0.75rem 1rem;
+      text-decoration: none;
+      font-size: 1rem;
+      margin-top: 0rem;
+
+      &:hover, &:focus {
+        text-decoration: none;
+      }
+    }
+  }
+}

convivial_bootstrap.theme

@@ -185,9 +185,6 @@ function convivial_bootstrap_preprocess_page(&$variables) {
         $variables['attributes']['class'][] = trim($item['value']);
       }
     }
-    if ($node->getType() === 'decision_tree') {
-      $variables['#attached']['library'][] = 'convivial_bootstrap/decision_tree_library';
-    }
   }
 
   // Attach the library mark_external_links.
@@ -622,6 +619,13 @@ function convivial_bootstrap_preprocess_paragraph__geochart(&$variables) {
   _convivial_bootstrap_geochart($variables);
 }
 
+/**
+ * Implements template_preprocess_paragraph__decision_tree().
+ */
+function convivial_bootstrap_preprocess_paragraph__decision_tree(&$variables) {
+  $variables['#attached']['library'][] = 'convivial_bootstrap/decision_tree_library';
+}
+
 /**
  * Implements template_preprocess_ds_entity_view().
  */