From 79e50215641ec2ddaa7d15ad3c228a4049017ebd Mon Sep 17 00:00:00 2001
From: akaretnikov <akaretnikov@yandex-team.com>
Date: Wed, 5 Feb 2025 18:16:35 +0300
Subject: [PATCH] perforator: do not miss root when resizing window
 commit_hash:06a5a656d046239fc5071f4d9298fe59c4e785d5

---
 .../ui/src/components/TaskReport/Flamegraph/renderer.ts      | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/perforator/ui/src/components/TaskReport/Flamegraph/renderer.ts b/perforator/ui/src/components/TaskReport/Flamegraph/renderer.ts
index 2556c2ea..39ac28db 100644
--- a/perforator/ui/src/components/TaskReport/Flamegraph/renderer.ts
+++ b/perforator/ui/src/components/TaskReport/Flamegraph/renderer.ts
@@ -609,10 +609,13 @@ export const renderFlamegraph: RenderFlamegraphType = (
     render({ pattern: searchPattern, subtree: { initialH: h, initialI: pos } });
 
     const onResize = () => requestAnimationFrame(() => {
+
+        const initialH = Number(getState('frameDepth', '0'));
+        const initialI = Number(getState('framePos', '0'));
         //@ts-ignore
         canvas.style.width = null;
         initCanvas();
-        render({ pattern: searchPattern });
+        render({ subtree: { initialH, initialI }, pattern: searchPattern });
     });
     window.addEventListener('resize', onResize);