Status History: Improve tooltip (#76647)

* feat(state-timeline-tooltip): improve status history tooltip

Co-authored-by: Adela Almasan <adela.almasan@grafana.com>
Co-authored-by: Leon Sorokin <leeoniya@gmail.com>

public/app/core/components/TimelineChart/timeline.ts

@@ -357,7 +357,6 @@ export function getConfig(opts: TimelineCoreOptions) {
         };
 
   const init = (u: uPlot) => {
-    let over = u.over;
     let chars = '';
     for (let i = 32; i <= 126; i++) {
       chars += String.fromCharCode(i);
@@ -367,7 +366,6 @@ export function getConfig(opts: TimelineCoreOptions) {
     // be a bit more conservtive to prevent overlap
     pxPerChar += 2.5;
 
-    over.style.overflow = 'hidden';
     u.root.querySelectorAll<HTMLDivElement>('.u-cursor-pt').forEach((el) => {
       el.style.borderRadius = '0';
     });

public/app/plugins/panel/status-history/StatusHistoryPanel.tsx

@@ -1,9 +1,11 @@
 import React, { useCallback, useMemo, useRef, useState } from 'react';
 
 import { CartesianCoords2D, DashboardCursorSync, DataFrame, FieldType, PanelProps } from '@grafana/data';
+import { config } from '@grafana/runtime';
 import {
   Portal,
   TooltipDisplayMode,
+  TooltipPlugin2,
   UPlotConfigBuilder,
   usePanelContext,
   useTheme2,
@@ -11,6 +13,7 @@ import {
   ZoomPlugin,
 } from '@grafana/ui';
 import { HoverEvent, addTooltipSupport } from '@grafana/ui/src/components/uPlot/config/addTooltipSupport';
+import { TooltipHoverMode } from '@grafana/ui/src/components/uPlot/plugins/TooltipPlugin2';
 import { CloseButton } from 'app/core/components/CloseButton/CloseButton';
 import { TimelineChart } from 'app/core/components/TimelineChart/TimelineChart';
 import {
@@ -23,6 +26,7 @@ import { OutsideRangePlugin } from '../timeseries/plugins/OutsideRangePlugin';
 import { getTimezones } from '../timeseries/utils';
 
 import { StatusHistoryTooltip } from './StatusHistoryTooltip';
+import { StatusHistoryTooltip2 } from './StatusHistoryTooltip2';
 import { Options } from './panelcfg.gen';
 
 const TOOLTIP_OFFSET = 10;
@@ -198,10 +202,10 @@ export const StatusHistoryPanel = ({
       {...options}
       mode={TimelineMode.Samples}
     >
-      {(config, alignedFrame) => {
-        if (oldConfig.current !== config) {
+      {(builder, alignedFrame) => {
+        if (oldConfig.current !== builder) {
           oldConfig.current = addTooltipSupport({
-            config,
+            config: builder,
             onUPlotClick,
             setFocusedSeriesIdx,
             setFocusedPointIdx,
@@ -213,13 +217,39 @@ export const StatusHistoryPanel = ({
           });
         }
 
-        return (
-          <>
-            <ZoomPlugin config={config} onZoom={onChangeTimeRange} />
-            {renderTooltip(alignedFrame)}
-            <OutsideRangePlugin config={config} onChangeTimeRange={onChangeTimeRange} />
-          </>
-        );
+        if (config.featureToggles.newVizTooltips) {
+          return (
+            <>
+              {options.tooltip.mode !== TooltipDisplayMode.None && (
+                <TooltipPlugin2
+                  config={builder}
+                  hoverMode={TooltipHoverMode.xyOne}
+                  queryZoom={onChangeTimeRange}
+                  render={(u, dataIdxs, seriesIdx, isPinned, dismiss) => {
+                    return (
+                      <StatusHistoryTooltip2
+                        data={frames ?? []}
+                        dataIdxs={dataIdxs}
+                        alignedData={alignedFrame}
+                        seriesIdx={seriesIdx}
+                        timeZone={timeZone}
+                        isPinned={isPinned}
+                      />
+                    );
+                  }}
+                />
+              )}
+            </>
+          );
+        } else {
+          return (
+            <>
+              <ZoomPlugin config={builder} onZoom={onChangeTimeRange} />
+              {renderTooltip(alignedFrame)}
+              <OutsideRangePlugin config={builder} onChangeTimeRange={onChangeTimeRange} />
+            </>
+          );
+        }
       }}
     </TimelineChart>
   );

public/app/plugins/panel/status-history/StatusHistoryTooltip2.tsx

@@ -0,0 +1,108 @@
+import { css } from '@emotion/css';
+import React from 'react';
+
+import {
+  DataFrame,
+  Field,
+  formattedValueToString,
+  getDisplayProcessor,
+  getFieldDisplayName,
+  GrafanaTheme2,
+  TimeZone,
+  LinkModel,
+} from '@grafana/data';
+import { useStyles2 } from '@grafana/ui';
+import { VizTooltipContent } from '@grafana/ui/src/components/VizTooltip/VizTooltipContent';
+import { VizTooltipFooter } from '@grafana/ui/src/components/VizTooltip/VizTooltipFooter';
+import { VizTooltipHeader } from '@grafana/ui/src/components/VizTooltip/VizTooltipHeader';
+import { LabelValue } from '@grafana/ui/src/components/VizTooltip/types';
+
+interface StatusHistoryTooltipProps {
+  data: DataFrame[];
+  dataIdxs: Array<number | null>;
+  alignedData: DataFrame;
+  seriesIdx: number | null | undefined;
+  timeZone: TimeZone;
+  isPinned: boolean;
+}
+
+function fmt(field: Field, val: number): string {
+  if (field.display) {
+    return formattedValueToString(field.display(val));
+  }
+
+  return `${val}`;
+}
+
+export const StatusHistoryTooltip2 = ({
+  data,
+  dataIdxs,
+  alignedData,
+  seriesIdx,
+  timeZone,
+  isPinned,
+}: StatusHistoryTooltipProps) => {
+  const styles = useStyles2(getStyles);
+
+  // @todo: check other dataIdx, it can be undefined or null in array
+  const datapointIdx = dataIdxs.find((idx) => idx !== undefined);
+
+  if (!data || datapointIdx == null) {
+    return null;
+  }
+
+  const xField = alignedData.fields[0];
+  const field = alignedData.fields[seriesIdx!];
+
+  const links: Array<LinkModel<Field>> = [];
+  const linkLookup = new Set<string>();
+
+  if (field.getLinks) {
+    const v = field.values[datapointIdx];
+    const disp = field.display ? field.display(v) : { text: `${v}`, numeric: +v };
+    field.getLinks({ calculatedValue: disp, valueRowIndex: datapointIdx }).forEach((link) => {
+      const key = `${link.title}/${link.href}`;
+      if (!linkLookup.has(key)) {
+        links.push(link);
+        linkLookup.add(key);
+      }
+    });
+  }
+
+  const fieldFmt = field.display || getDisplayProcessor();
+  const value = field.values[datapointIdx!];
+  const display = fieldFmt(value);
+
+  const getHeaderLabel = (): LabelValue => {
+    return {
+      label: '',
+      value: fmt(xField, xField.values[datapointIdx]),
+    };
+  };
+
+  const getContentLabelValue = () => {
+    return [
+      {
+        label: getFieldDisplayName(field),
+        value: fmt(field, field.values[datapointIdx]),
+        color: display.color,
+      },
+    ];
+  };
+
+  return (
+    <div className={styles.wrapper}>
+      <VizTooltipHeader headerLabel={getHeaderLabel()} />
+      <VizTooltipContent contentLabelValue={getContentLabelValue()} />
+      {isPinned && <VizTooltipFooter dataLinks={links} canAnnotate={false} />}
+    </div>
+  );
+};
+
+const getStyles = (theme: GrafanaTheme2) => ({
+  wrapper: css({
+    display: 'flex',
+    flexDirection: 'column',
+    width: '280px',
+  }),
+});