[XY] showTooltip argument.

src/plugins/chart_expressions/expression_xy/common/__mocks__/index.ts

@@ -83,6 +83,7 @@ export const createArgsWithLayers = (
   xTitle: '',
   yTitle: '',
   yRightTitle: '',
+  showTooltip: true,
   legend: {
     type: 'legendConfig',
     isVisible: false,

src/plugins/chart_expressions/expression_xy/common/expression_functions/common_xy_args.ts

@@ -128,6 +128,11 @@ export const commonXYArgs: CommonXYFn['args'] = {
     types: ['string'],
     help: strings.getAriaLabelHelp(),
   },
+  showTooltip: {
+    types: ['boolean'],
+    default: true,
+    help: strings.getShowTooltipHelp(),
+  },
   orderBucketsBySum: {
     types: ['boolean'],
     default: false,

src/plugins/chart_expressions/expression_xy/common/i18n/index.tsx

@@ -121,6 +121,10 @@ export const strings = {
     i18n.translate('expressionXY.xyVis.ariaLabel.help', {
       defaultMessage: 'Specifies the aria label of the xy chart',
     }),
+  getShowTooltipHelp: () =>
+    i18n.translate('expressionXY.xyVis.showTooltip.help', {
+      defaultMessage: 'Show tooltip',
+    }),
   getOrderBucketsBySum: () =>
     i18n.translate('expressionXY.xyVis.orderBucketsBySum.help', {
       defaultMessage: 'Order buckets by sum',

src/plugins/chart_expressions/expression_xy/common/types/expression_functions.ts

@@ -221,6 +221,7 @@ export interface XYArgs extends DataLayerArgs {
   splitRowAccessor?: ExpressionValueVisDimension | string;
   splitColumnAccessor?: ExpressionValueVisDimension | string;
   orderBucketsBySum?: boolean;
+  showTooltip: boolean;
 }
 
 export interface LayeredXYArgs {
@@ -250,6 +251,7 @@ export interface LayeredXYArgs {
   markSizeRatio?: number;
   minTimeBarInterval?: string;
   orderBucketsBySum?: boolean;
+  showTooltip: boolean;
 }
 
 export interface XYProps {
@@ -281,6 +283,7 @@ export interface XYProps {
   splitRowAccessor?: ExpressionValueVisDimension | string;
   splitColumnAccessor?: ExpressionValueVisDimension | string;
   orderBucketsBySum?: boolean;
+  showTooltip: boolean;
 }
 
 export interface AnnotationLayerArgs {

src/plugins/chart_expressions/expression_xy/public/components/xy_chart.test.tsx

@@ -2236,6 +2236,7 @@ describe('XYChart component', () => {
       yRightTitle: '',
       yLeftScale: 'linear',
       yRightScale: 'linear',
+      showTooltip: true,
       legend: { type: 'legendConfig', isVisible: false, position: Position.Top },
       valueLabels: 'hide',
       tickLabelsVisibilitySettings: {
@@ -2328,6 +2329,7 @@ describe('XYChart component', () => {
       yRightTitle: '',
       legend: { type: 'legendConfig', isVisible: false, position: Position.Top },
       valueLabels: 'hide',
+      showTooltip: true,
       tickLabelsVisibilitySettings: {
         type: 'tickLabelsConfig',
         x: true,
@@ -2401,6 +2403,7 @@ describe('XYChart component', () => {
       xTitle: '',
       yTitle: '',
       yRightTitle: '',
+      showTooltip: true,
       legend: { type: 'legendConfig', isVisible: true, position: Position.Top },
       valueLabels: 'hide',
       tickLabelsVisibilitySettings: {

src/plugins/chart_expressions/expression_xy/public/components/xy_chart.tsx

@@ -24,6 +24,7 @@ import {
   DisplayValueStyle,
   RecursivePartial,
   AxisStyle,
+  TooltipType,
   Placement,
   Direction,
 } from '@elastic/charts';
@@ -596,6 +597,7 @@ export function XYChart({
         tooltip={{
           boundary: document.getElementById('app-fixed-viewport') ?? undefined,
           headerFormatter: (d) => safeXAccessorLabelRenderer(d.value),
+          type: args.showTooltip ? TooltipType.VerticalCursor : TooltipType.None,
         }}
         allowBrushingLastHistogramBin={isTimeViz}
         rotation={shouldRotate ? 90 : 0}