Fix fast expand/collapse of folder leads to inconsistent state

Close #1029
mar10 · Aug 27, 2020 · 3d6e1a4 · 3d6e1a4
1 parent 513d40f
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,7 +1,8 @@
 # 2.36.2 / Unreleased
   * [Fixed] #1022 ext-persist: Handle 'Access is denied for this document'
   * [Fixed] #1028 Uncaught TypeError: apply is not a function (regression of #1019)
-
+  * [Fixed] #1029 Fast expand/collapse of folder leads to inconsistent state
+
 # 2.36.1 / 2020-07-25
   * [Fixed] #1021 ext-dnd5 Regression (#1012) in drop marker
 

diff --git a/src/jquery.fancytree.js b/src/jquery.fancytree.js
@@ -5390,6 +5390,13 @@
 
 				// node.debug("nodeSetExpanded(" + flag + ")");
 
+				if ($(node.li).hasClass(opts._classNames.animating)) {
+					node.warn(
+						"setExpanded(" + flag + ") while animating: ignored."
+					);
+					return _getRejectedPromise(node, ["recursion"]);
+				}
+
 				if ((node.expanded && flag) || (!node.expanded && !flag)) {
 					// Nothing to do
 					// node.debug("nodeSetExpanded(" + flag + "): nothing to do");