From 5ae5fd32dbe4c5316a8da98e0215247fe48b8348 Mon Sep 17 00:00:00 2001
From: "grafana-delivery-bot[bot]"
 <132647405+grafana-delivery-bot[bot]@users.noreply.github.com>
Date: Fri, 19 Apr 2024 06:56:46 -0700
Subject: [PATCH] [v11.0.x] VizTooltip: Fix heatmap mode All (#86468)

VizTooltip: Fix heatmap mode All (#86463)

(cherry picked from commit 38fe9fcfd1316d0e07727a02938bf5f0d9864072)

Co-authored-by: Adela Almasan <88068998+adela-almasan@users.noreply.github.com>
---
 public/app/plugins/panel/heatmap/HeatmapTooltip.tsx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/public/app/plugins/panel/heatmap/HeatmapTooltip.tsx b/public/app/plugins/panel/heatmap/HeatmapTooltip.tsx
index ed104d63f2f..5f3a6b6b53e 100644
--- a/public/app/plugins/panel/heatmap/HeatmapTooltip.tsx
+++ b/public/app/plugins/panel/heatmap/HeatmapTooltip.tsx
@@ -108,7 +108,11 @@ const HeatmapHoverCell = ({
 
   let contentItems: VizTooltipItem[] = [];
 
-  const yValueIdx = index % (data.yBucketCount ?? 1);
+  const getYValueIndex = (idx: number) => {
+    return idx % (data.yBucketCount ?? 1);
+  };
+
+  let yValueIdx = getYValueIndex(index);
   const xValueIdx = Math.floor(index / (data.yBucketCount ?? 1));
 
   const getData = (idx: number = index) => {
@@ -178,6 +182,7 @@ const HeatmapHoverCell = ({
       if (isSparse) {
         ({ xBucketMin, xBucketMax, yBucketMin, yBucketMax } = getSparseCellMinMax(data!, idx));
       } else {
+        yValueIdx = getYValueIndex(idx);
         getData(idx);
       }