primo commit

media/com_guidedtours/js/tour-edit.js

@@ -0,0 +1,36 @@
+/**
+ * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license    GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+(() => {
+
+  // before 'joomla:showon-processed' is implemented in Showon we must use more frequent 'joomla:showon-show' and'joomla:showon-hide' events
+  ['joomla:showon-show', 'joomla:showon-hide'].forEach(eventType => {
+    document.addEventListener(eventType, () => {
+      document.querySelectorAll('#guidedtour-dates-form fieldset').forEach(fieldset => {
+        // Only hide fieldsets containing field control-group i.e. not radio selectors etc. that may use fieldsets
+        if (fieldset.querySelectorAll(':scope .control-group').length === 0) {
+          return;
+        }
+        const visibleChildren = fieldset.querySelectorAll(':scope .control-group:not(.hidden)');
+        if (visibleChildren.length) {
+          fieldset.classList.remove('hidden');
+        } else {
+          fieldset.classList.add('hidden');
+        }
+      });
+      document.querySelectorAll('#guidedtour-dates-form joomla-tab-element').forEach(tabelement => {
+        const tabLabel = document.querySelector(`button[aria-controls="${tabelement.id}"]`);
+        if (tabLabel) {
+          const visibleChildren = tabelement.querySelectorAll(':scope .control-group:not(.hidden)');
+          if (visibleChildren.length) {
+            tabLabel.removeAttribute('hidden');
+          } else {
+            tabLabel.setAttribute('hidden', 'hidden');
+          }
+        }
+      });
+    });
+  });
+})();