From 0f963472253e3ac1c874da20f72b87e16707fc5f Mon Sep 17 00:00:00 2001
From: Tom Herold <tom.herold@scalableminds.com>
Date: Mon, 15 Jul 2019 12:56:48 +0200
Subject: [PATCH] Fixed Bug with Collapse/Expand All Tree Groups (#4178)

* fixed expand all trees bug #4162

* Update CHANGELOG.md
---
 CHANGELOG.md                                               | 1 +
 .../oxalis/view/right-menu/tree_hierarchy_view.js          | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10307933f0c..d921ba7246a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@ For upgrade instructions, please check the [migration guide](MIGRATIONS.md).
 
 ### Fixed
 - Fixed a bug where volume tracings could not be converted to hybrid. [#4159](https://github.com/scalableminds/webknossos/pull/4159)
+- Fixed a bug where collapsing/expanding all tree groups would trigger when toggling a single tree [#4178](https://github.com/scalableminds/webknossos/pull/4178)
 
 ### Removed
 -
diff --git a/frontend/javascripts/oxalis/view/right-menu/tree_hierarchy_view.js b/frontend/javascripts/oxalis/view/right-menu/tree_hierarchy_view.js
index d111a08b104..ed635eadbd6 100644
--- a/frontend/javascripts/oxalis/view/right-menu/tree_hierarchy_view.js
+++ b/frontend/javascripts/oxalis/view/right-menu/tree_hierarchy_view.js
@@ -181,18 +181,23 @@ class TreeHierarchyView extends React.PureComponent<Props, State> {
   };
 
   setExpansionOfAllSubgroupsTo = (groupId: number, expanded: boolean) => {
+    const newExpandedGroupIds = Object.assign({}, this.state.expandedGroupIds);
     const collapseAllGroups = groupTree => {
       const copyOfGroupTree = _.cloneDeep(groupTree);
       findTreeNode(copyOfGroupTree, groupId, item => {
         forEachTreeNode(item.children, node => {
           if (node.type === TYPE_GROUP) {
             node.expanded = expanded;
+            newExpandedGroupIds[node.id] = expanded;
           }
         });
       });
       return copyOfGroupTree;
     };
-    this.setState(prevState => ({ groupTree: collapseAllGroups(prevState.groupTree) }));
+    this.setState(prevState => ({
+      groupTree: collapseAllGroups(prevState.groupTree),
+      expandedGroupIds: newExpandedGroupIds,
+    }));
   };
 
   onMoveNode = (params: {