primo commit

media/com_menus/js/admin-item-edit_container.js

@@ -0,0 +1,37 @@
+/**
+ * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license    GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+(document => {
+  const isChecked = element => element.checked;
+  const getTreeElements = element => element.querySelectorAll('input[type="checkbox"]');
+  const getTreeRoot = element => element.parentElement.nextElementSibling;
+  const check = element => {
+    element.checked = true;
+  };
+  const uncheck = element => {
+    element.checked = false;
+  };
+  const disable = element => element.setAttribute('disabled', 'disabled');
+  const enable = element => element.removeAttribute('disabled');
+  const toggleState = (element, rootChecked) => {
+    if (rootChecked === true) {
+      disable(element);
+      check(element);
+      return;
+    }
+    enable(element);
+    uncheck(element);
+  };
+  const switchState = ({
+    target
+  }) => {
+    const root = getTreeRoot(target);
+    const selfChecked = isChecked(target);
+    if (root) {
+      getTreeElements(root).forEach(element => toggleState(element, selfChecked));
+    }
+  };
+  document.querySelectorAll('.treeselect input[type="checkbox"]').forEach(checkbox => checkbox.addEventListener('click', switchState));
+})(document);