From 708bcda76a0c0b7f6da3d21d80e2ed592b3d828d Mon Sep 17 00:00:00 2001
From: Domas <domasx2@gmail.com>
Date: Fri, 10 May 2024 21:27:09 +0300
Subject: [PATCH] VizLegend: Represent line style in series legend and tooltip
 (#87558)

* wip

* aand finished

* remove console log

* use css for styling

* user boerder for solid as well

* misc fixes

* attempt css based approach

---------

Co-authored-by: Leon Sorokin <leeoniya@gmail.com>
---
 .../src/components/VizLegend/SeriesIcon.tsx   | 50 +++++++++++++------
 .../VizLegend/VizLegendListItem.tsx           |  1 +
 .../VizLegend/VizLegendSeriesIcon.tsx         |  8 ++-
 .../VizLegend/VizLegendTableItem.tsx          |  7 ++-
 .../src/components/VizLegend/types.ts         |  3 +-
 .../VizTooltip/VizTooltipColorIndicator.tsx   | 20 +++++---
 .../VizTooltip/VizTooltipContent.tsx          |  3 +-
 .../components/VizTooltip/VizTooltipRow.tsx   |  5 +-
 .../src/components/VizTooltip/types.ts        |  3 ++
 .../src/components/VizTooltip/utils.ts        |  3 +-
 .../src/components/uPlot/PlotLegend.tsx       |  1 +
 11 files changed, 76 insertions(+), 28 deletions(-)

diff --git a/packages/grafana-ui/src/components/VizLegend/SeriesIcon.tsx b/packages/grafana-ui/src/components/VizLegend/SeriesIcon.tsx
index c658fe0f072..981bad51eb6 100644
--- a/packages/grafana-ui/src/components/VizLegend/SeriesIcon.tsx
+++ b/packages/grafana-ui/src/components/VizLegend/SeriesIcon.tsx
@@ -1,19 +1,21 @@
 import { css, cx } from '@emotion/css';
 import React, { CSSProperties } from 'react';
 
-import { fieldColorModeRegistry } from '@grafana/data';
+import { GrafanaTheme2, fieldColorModeRegistry } from '@grafana/data';
+import { LineStyle } from '@grafana/schema';
 
 import { useTheme2, useStyles2 } from '../../themes';
 
 export interface Props extends React.HTMLAttributes<HTMLDivElement> {
   color?: string;
   gradient?: string;
+  lineStyle?: LineStyle;
 }
 
 export const SeriesIcon = React.memo(
-  React.forwardRef<HTMLDivElement, Props>(({ color, className, gradient, ...restProps }, ref) => {
+  React.forwardRef<HTMLDivElement, Props>(({ color, className, gradient, lineStyle, ...restProps }, ref) => {
     const theme = useTheme2();
-    const styles2 = useStyles2(getStyles);
+    const styles = useStyles2(getStyles);
 
     let cssColor: string;
 
@@ -29,28 +31,48 @@ export const SeriesIcon = React.memo(
       cssColor = color!;
     }
 
-    const styles: CSSProperties = {
-      background: cssColor,
-      width: '14px',
-      height: '4px',
-      borderRadius: theme.shape.radius.pill,
-      display: 'inline-block',
-      marginRight: '8px',
-    };
+    let customStyle: CSSProperties;
+
+    if (lineStyle?.fill === 'dot' && !gradient) {
+      // make a circle bg image and repeat it
+      customStyle = {
+        backgroundImage: `radial-gradient(circle at 2px 2px, ${color} 2px, transparent 0)`,
+        backgroundSize: '4px 4px',
+        backgroundRepeat: 'space',
+      };
+    } else if (lineStyle?.fill === 'dash' && !gradient) {
+      // make a rectangle bg image and repeat it
+      customStyle = {
+        backgroundImage: `linear-gradient(to right, ${color} 100%, transparent 0%)`,
+        backgroundSize: '6px 4px',
+        backgroundRepeat: 'space',
+      };
+    } else {
+      customStyle = {
+        background: cssColor,
+        borderRadius: theme.shape.radius.pill,
+      };
+    }
 
     return (
       <div
         data-testid="series-icon"
         ref={ref}
-        className={cx(className, styles2.forcedColors)}
-        style={styles}
+        className={cx(className, styles.forcedColors, styles.container)}
+        style={customStyle}
         {...restProps}
       />
     );
   })
 );
 
-const getStyles = () => ({
+const getStyles = (theme: GrafanaTheme2) => ({
+  container: css({
+    marginRight: '8px',
+    display: 'inline-block',
+    width: '14px',
+    height: '4px',
+  }),
   forcedColors: css({
     '@media (forced-colors: active)': {
       forcedColorAdjust: 'none',
diff --git a/packages/grafana-ui/src/components/VizLegend/VizLegendListItem.tsx b/packages/grafana-ui/src/components/VizLegend/VizLegendListItem.tsx
index 5a43727e728..f19b2d61d8f 100644
--- a/packages/grafana-ui/src/components/VizLegend/VizLegendListItem.tsx
+++ b/packages/grafana-ui/src/components/VizLegend/VizLegendListItem.tsx
@@ -75,6 +75,7 @@ export const VizLegendListItem = <T = unknown,>({
         color={item.color}
         gradient={item.gradient}
         readonly={readonly}
+        lineStyle={item.lineStyle}
       />
       <button
         disabled={readonly}
diff --git a/packages/grafana-ui/src/components/VizLegend/VizLegendSeriesIcon.tsx b/packages/grafana-ui/src/components/VizLegend/VizLegendSeriesIcon.tsx
index 901bfb2708c..e7e16c48f64 100644
--- a/packages/grafana-ui/src/components/VizLegend/VizLegendSeriesIcon.tsx
+++ b/packages/grafana-ui/src/components/VizLegend/VizLegendSeriesIcon.tsx
@@ -1,5 +1,7 @@
 import React, { useCallback } from 'react';
 
+import { LineStyle } from '@grafana/schema';
+
 import { SeriesColorPicker } from '../ColorPicker/ColorPicker';
 import { usePanelContext } from '../PanelChrome';
 
@@ -10,12 +12,13 @@ interface Props {
   color?: string;
   gradient?: string;
   readonly?: boolean;
+  lineStyle?: LineStyle;
 }
 
 /**
  * @internal
  */
-export const VizLegendSeriesIcon = React.memo(({ seriesName, color, gradient, readonly }: Props) => {
+export const VizLegendSeriesIcon = React.memo(({ seriesName, color, gradient, readonly, lineStyle }: Props) => {
   const { onSeriesColorChange } = usePanelContext();
   const onChange = useCallback(
     (color: string) => {
@@ -34,12 +37,13 @@ export const VizLegendSeriesIcon = React.memo(({ seriesName, color, gradient, re
             ref={ref}
             onClick={showColorPicker}
             onMouseLeave={hideColorPicker}
+            lineStyle={lineStyle}
           />
         )}
       </SeriesColorPicker>
     );
   }
-  return <SeriesIcon color={color} gradient={gradient} />;
+  return <SeriesIcon color={color} gradient={gradient} lineStyle={lineStyle} />;
 });
 
 VizLegendSeriesIcon.displayName = 'VizLegendSeriesIcon';
diff --git a/packages/grafana-ui/src/components/VizLegend/VizLegendTableItem.tsx b/packages/grafana-ui/src/components/VizLegend/VizLegendTableItem.tsx
index 3dc94c0741f..bf66a48e8dd 100644
--- a/packages/grafana-ui/src/components/VizLegend/VizLegendTableItem.tsx
+++ b/packages/grafana-ui/src/components/VizLegend/VizLegendTableItem.tsx
@@ -69,7 +69,12 @@ export const LegendTableItem = ({
     <tr className={cx(styles.row, className)}>
       <td>
         <span className={styles.itemWrapper}>
-          <VizLegendSeriesIcon color={item.color} seriesName={item.fieldName ?? item.label} readonly={readonly} />
+          <VizLegendSeriesIcon
+            color={item.color}
+            seriesName={item.fieldName ?? item.label}
+            readonly={readonly}
+            lineStyle={item.lineStyle}
+          />
           <button
             disabled={readonly}
             type="button"
diff --git a/packages/grafana-ui/src/components/VizLegend/types.ts b/packages/grafana-ui/src/components/VizLegend/types.ts
index 341008ba480..ed1fd196c61 100644
--- a/packages/grafana-ui/src/components/VizLegend/types.ts
+++ b/packages/grafana-ui/src/components/VizLegend/types.ts
@@ -1,7 +1,7 @@
 import React from 'react';
 
 import { DataFrameFieldIndex, DisplayValue } from '@grafana/data';
-import { LegendDisplayMode, LegendPlacement } from '@grafana/schema';
+import { LegendDisplayMode, LegendPlacement, LineStyle } from '@grafana/schema';
 
 export enum SeriesVisibilityChangeBehavior {
   Isolate,
@@ -49,4 +49,5 @@ export interface VizLegendItem<T = any> {
   fieldIndex?: DataFrameFieldIndex;
   fieldName?: string;
   data?: T;
+  lineStyle?: LineStyle;
 }
diff --git a/packages/grafana-ui/src/components/VizTooltip/VizTooltipColorIndicator.tsx b/packages/grafana-ui/src/components/VizTooltip/VizTooltipColorIndicator.tsx
index 5525dd2e9a5..5118ef2020b 100644
--- a/packages/grafana-ui/src/components/VizTooltip/VizTooltipColorIndicator.tsx
+++ b/packages/grafana-ui/src/components/VizTooltip/VizTooltipColorIndicator.tsx
@@ -2,8 +2,10 @@ import { css, cx } from '@emotion/css';
 import React from 'react';
 
 import { FALLBACK_COLOR, GrafanaTheme2 } from '@grafana/data';
+import { LineStyle } from '@grafana/schema';
 
 import { useStyles2 } from '../../themes';
+import { SeriesIcon } from '../VizLegend/SeriesIcon';
 
 import { ColorIndicator, DEFAULT_COLOR_INDICATOR } from './types';
 import { getColorIndicatorClass } from './utils';
@@ -17,6 +19,7 @@ interface Props {
   color?: string;
   colorIndicator?: ColorIndicator;
   position?: ColorIndicatorPosition;
+  lineStyle?: LineStyle;
 }
 
 export type ColorIndicatorStyles = ReturnType<typeof getStyles>;
@@ -25,9 +28,20 @@ export const VizTooltipColorIndicator = ({
   color = FALLBACK_COLOR,
   colorIndicator = DEFAULT_COLOR_INDICATOR,
   position = ColorIndicatorPosition.Leading,
+  lineStyle,
 }: Props) => {
   const styles = useStyles2(getStyles);
 
+  if (colorIndicator === ColorIndicator.series) {
+    return (
+      <SeriesIcon
+        color={color}
+        lineStyle={lineStyle}
+        className={position === ColorIndicatorPosition.Leading ? styles.leading : styles.trailing}
+      />
+    );
+  }
+
   return (
     <span
       style={{ backgroundColor: color }}
@@ -47,12 +61,6 @@ const getStyles = (theme: GrafanaTheme2) => ({
   trailing: css({
     marginLeft: theme.spacing(0.5),
   }),
-  series: css({
-    width: '14px',
-    height: '4px',
-    borderRadius: theme.shape.radius.pill,
-    minWidth: '14px',
-  }),
   value: css({
     width: '12px',
     height: '12px',
diff --git a/packages/grafana-ui/src/components/VizTooltip/VizTooltipContent.tsx b/packages/grafana-ui/src/components/VizTooltip/VizTooltipContent.tsx
index 5bb8a3d276e..d5823a7ea3b 100644
--- a/packages/grafana-ui/src/components/VizTooltip/VizTooltipContent.tsx
+++ b/packages/grafana-ui/src/components/VizTooltip/VizTooltipContent.tsx
@@ -34,7 +34,7 @@ export const VizTooltipContent = ({
 
   return (
     <div className={styles.wrapper} style={scrollableStyle}>
-      {items.map(({ label, value, color, colorIndicator, colorPlacement, isActive }, i) => (
+      {items.map(({ label, value, color, colorIndicator, colorPlacement, isActive, lineStyle }, i) => (
         <VizTooltipRow
           key={i}
           label={label}
@@ -45,6 +45,7 @@ export const VizTooltipContent = ({
           isActive={isActive}
           justify={'space-between'}
           isPinned={isPinned}
+          lineStyle={lineStyle}
         />
       ))}
       {children}
diff --git a/packages/grafana-ui/src/components/VizTooltip/VizTooltipRow.tsx b/packages/grafana-ui/src/components/VizTooltip/VizTooltipRow.tsx
index 5faa6b31dfa..ff3af891237 100644
--- a/packages/grafana-ui/src/components/VizTooltip/VizTooltipRow.tsx
+++ b/packages/grafana-ui/src/components/VizTooltip/VizTooltipRow.tsx
@@ -36,6 +36,7 @@ export const VizTooltipRow = ({
   isActive = false,
   marginRight = '0px',
   isPinned,
+  lineStyle,
 }: VizTooltipRowProps) => {
   const styles = useStyles2(getStyles, justify, marginRight);
 
@@ -118,7 +119,7 @@ export const VizTooltipRow = ({
       {(color || label) && (
         <div className={styles.valueWrapper}>
           {color && colorPlacement === ColorPlacement.first && (
-            <VizTooltipColorIndicator color={color} colorIndicator={colorIndicator} />
+            <VizTooltipColorIndicator color={color} colorIndicator={colorIndicator} lineStyle={lineStyle} />
           )}
           {!isPinned ? (
             <div className={cx(styles.label, isActive && styles.activeSeries)}>{label}</div>
@@ -154,6 +155,7 @@ export const VizTooltipRow = ({
             color={color}
             colorIndicator={colorIndicator}
             position={ColorIndicatorPosition.Leading}
+            lineStyle={lineStyle}
           />
         )}
 
@@ -186,6 +188,7 @@ export const VizTooltipRow = ({
             color={color}
             colorIndicator={colorIndicator}
             position={ColorIndicatorPosition.Trailing}
+            lineStyle={lineStyle}
           />
         )}
       </div>
diff --git a/packages/grafana-ui/src/components/VizTooltip/types.ts b/packages/grafana-ui/src/components/VizTooltip/types.ts
index 8a734a85092..de4fbae048f 100644
--- a/packages/grafana-ui/src/components/VizTooltip/types.ts
+++ b/packages/grafana-ui/src/components/VizTooltip/types.ts
@@ -1,3 +1,5 @@
+import { LineStyle } from '@grafana/schema';
+
 export enum ColorIndicator {
   series = 'series',
   value = 'value',
@@ -24,6 +26,7 @@ export interface VizTooltipItem {
   colorIndicator?: ColorIndicator;
   colorPlacement?: ColorPlacement;
   isActive?: boolean;
+  lineStyle?: LineStyle;
 
   // internal/tmp for sorting
   numeric?: number;
diff --git a/packages/grafana-ui/src/components/VizTooltip/utils.ts b/packages/grafana-ui/src/components/VizTooltip/utils.ts
index 7848983c7bf..73910867d9b 100644
--- a/packages/grafana-ui/src/components/VizTooltip/utils.ts
+++ b/packages/grafana-ui/src/components/VizTooltip/utils.ts
@@ -49,8 +49,6 @@ export const getColorIndicatorClass = (colorIndicator: string, styles: ColorIndi
   switch (colorIndicator) {
     case ColorIndicator.value:
       return styles.value;
-    case ColorIndicator.series:
-      return styles.series;
     case ColorIndicator.hexagon:
       return styles.hexagon;
     case ColorIndicator.pie_1_4:
@@ -149,6 +147,7 @@ export const getContentItems = (
       colorPlacement,
       isActive: mode === TooltipDisplayMode.Multi && seriesIdx === i,
       numeric,
+      lineStyle: field.config.custom?.lineStyle,
     });
   }
 
diff --git a/packages/grafana-ui/src/components/uPlot/PlotLegend.tsx b/packages/grafana-ui/src/components/uPlot/PlotLegend.tsx
index 27e4ecc630e..50325873e06 100644
--- a/packages/grafana-ui/src/components/uPlot/PlotLegend.tsx
+++ b/packages/grafana-ui/src/components/uPlot/PlotLegend.tsx
@@ -71,6 +71,7 @@ export const PlotLegend = React.memo(
           yAxis: axisPlacement === AxisPlacement.Left || axisPlacement === AxisPlacement.Bottom ? 1 : 2,
           getDisplayValues: () => getDisplayValuesForCalcs(calcs, field, theme),
           getItemKey: () => `${label}-${fieldIndex.frameIndex}-${fieldIndex.fieldIndex}`,
+          lineStyle: seriesConfig.lineStyle,
         };
       })
       .filter((i): i is VizLegendItem => i !== undefined);