From 39e4a4f3710f63ff799d1916945eb95139bcd4f7 Mon Sep 17 00:00:00 2001
From: Dmitry Drobotov <dmitry.drobotov@jetbrains.com>
Date: Mon, 9 Dec 2024 13:41:26 +0100
Subject: [PATCH] IJPL-172840 Use Tree's suspend expand/collapse accessibility
 announcements API in the Usages tree

This fixes a crash in Find Usages (IJPL-171433)


(cherry picked from commit 70eef793231c7819b88453eb55c05a63df9142d3)

IJ-CR-151182

GitOrigin-RevId: 3afbe9798ae200508739cc3e264af8fae187323f
---
 .../intellij/usages/impl/UsageViewImpl.java   | 22 ++++++++++++++-----
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/platform/usageView-impl/src/com/intellij/usages/impl/UsageViewImpl.java b/platform/usageView-impl/src/com/intellij/usages/impl/UsageViewImpl.java
index 4871f0a21269..73c77a090248 100644
--- a/platform/usageView-impl/src/com/intellij/usages/impl/UsageViewImpl.java
+++ b/platform/usageView-impl/src/com/intellij/usages/impl/UsageViewImpl.java
@@ -317,7 +317,7 @@ public class UsageViewImpl implements UsageViewEx {
   public int getId() {
     return myUniqueIdentifier;
   }
-  
+
   @ApiStatus.Internal
   public JTree getTree() {
     return myTree;
@@ -1138,11 +1138,21 @@ public class UsageViewImpl implements UsageViewEx {
     ThreadingAssertions.assertEventDispatchThread();
     //always expand the last level group
     DefaultMutableTreeNode root = (DefaultMutableTreeNode)myTree.getModel().getRoot();
-    for (int i = root.getChildCount() - 1; i >= 0; i--) {
-      DefaultMutableTreeNode child = (DefaultMutableTreeNode)root.getChildAt(i);
-      if (child instanceof GroupNode) {
-        TreePath treePath = new TreePath(child.getPath());
-        myTree.expandPath(treePath);
+    try {
+      if (myTree instanceof Tree jbTree) {
+        jbTree.suspendExpandCollapseAccessibilityAnnouncements();
+      }
+      for (int i = root.getChildCount() - 1; i >= 0; i--) {
+        DefaultMutableTreeNode child = (DefaultMutableTreeNode)root.getChildAt(i);
+        if (child instanceof GroupNode) {
+          TreePath treePath = new TreePath(child.getPath());
+          myTree.expandPath(treePath);
+        }
+      }
+    }
+    finally {
+      if (myTree instanceof Tree jbTree) {
+        jbTree.resumeExpandCollapseAccessibilityAnnouncements();
       }
     }
     myTree.getSelectionModel().clearSelection();