[Lens] Mosaic / mekko vis type

x-pack/plugins/lens/common/expressions/pie_chart/pie_chart.ts

@@ -49,7 +49,7 @@ export const pie: ExpressionFunctionDefinition<
     },
     shape: {
       types: ['string'],
-      options: ['pie', 'donut', 'treemap'],
+      options: ['pie', 'donut', 'treemap', 'mosaic'],
       help: '',
     },
     hideLabels: {

x-pack/plugins/lens/common/expressions/pie_chart/types.ts

@@ -8,6 +8,8 @@
 import type { PaletteOutput } from '../../../../../../src/plugins/charts/common';
 import type { LensMultiTable, LayerType } from '../../types';
 
+export type PieChartTypes = 'donut' | 'pie' | 'treemap' | 'mosaic';
+
 export interface SharedPieLayerState {
   groups: string[];
   metric?: string;
@@ -27,15 +29,15 @@ export type PieLayerState = SharedPieLayerState & {
 };
 
 export interface PieVisualizationState {
-  shape: 'donut' | 'pie' | 'treemap';
+  shape: PieChartTypes;
   layers: PieLayerState[];
   palette?: PaletteOutput;
 }
 
 export type PieExpressionArgs = SharedPieLayerState & {
   title?: string;
   description?: string;
-  shape: 'pie' | 'donut' | 'treemap';
+  shape: PieChartTypes;
   hideLabels: boolean;
   palette: PaletteOutput;
 };

x-pack/plugins/lens/public/assets/chart_mosaic.tsx

@@ -0,0 +1,31 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import React from 'react';
+import type { EuiIconProps } from '@elastic/eui';
+
+export const LensIconChartMosaic = ({ title, titleId, ...props }: Omit<EuiIconProps, 'type'>) => (
+  <svg
+    viewBox="0 0 30 22"
+    width={30}
+    height={22}
+    fill="none"
+    xmlns="http://www.w3.org/2000/svg"
+    aria-labelledby={titleId}
+    {...props}
+  >
+    {title ? <title id={titleId} /> : null}
+    <path
+      className="lensChartIcon__subdued"
+      d="M2 0a1 1 0 00-1 1v2a1 1 0 001 1h6a1 1 0 001-1V1a1 1 0 00-1-1H2zM2 14a1 1 0 00-1 1v6a1 1 0 001 1h6a1 1 0 001-1v-6a1 1 0 00-1-1H2zM11 13a1 1 0 011-1h6a1 1 0 011 1v8a1 1 0 01-1 1h-6a1 1 0 01-1-1v-8zM12 0a1 1 0 100 2h6a1 1 0 100-2h-6zM21 15a1 1 0 011-1h6a1 1 0 011 1v6a1 1 0 01-1 1h-6a1 1 0 01-1-1v-6zM22 0a1 1 0 00-1 1v4a1 1 0 001 1h6a1 1 0 001-1V1a1 1 0 00-1-1h-6z"
+    />
+    <path
+      className="lensChartIcon__accent"
+      d="M11 5a1 1 0 011-1h6a1 1 0 011 1v4a1 1 0 01-1 1h-6a1 1 0 01-1-1V5zM1 7a1 1 0 011-1h6a1 1 0 011 1v4a1 1 0 01-1 1H2a1 1 0 01-1-1V7zM22 8a1 1 0 00-1 1v2a1 1 0 001 1h6a1 1 0 001-1V9a1 1 0 00-1-1h-6z"
+    />
+  </svg>
+);

x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/layer_panel.test.tsx

@@ -225,7 +225,40 @@ describe('LayerPanel', () => {
 
       const group = instance
         .find(EuiFormRow)
-        .findWhere((e) => e.prop('error') === 'Required dimension');
+        .findWhere((e) => e.prop('error') === 'Requires field');
+
+      expect(group).toHaveLength(1);
+    });
+
+    it('should render the required warning when only one group is configured (with requiredMinDimensionCount)', async () => {
+      mockVisualization.getConfiguration.mockReturnValue({
+        groups: [
+          {
+            groupLabel: 'A',
+            groupId: 'a',
+            accessors: [{ columnId: 'x' }],
+            filterOperations: () => true,
+            supportsMoreColumns: false,
+            dataTestSubj: 'lnsGroup',
+          },
+          {
+            groupLabel: 'B',
+            groupId: 'b',
+            accessors: [{ columnId: 'y' }],
+            filterOperations: () => true,
+            supportsMoreColumns: true,
+            dataTestSubj: 'lnsGroup',
+            required: true,
+            requiredMinDimensionCount: 2,
+          },
+        ],
+      });
+
+      const { instance } = await mountWithProvider(<LayerPanel {...getDefaultProps()} />);
+
+      const group = instance
+        .find(EuiFormRow)
+        .findWhere((e) => e.prop('error') === 'Requires 2 fields');
 
       expect(group).toHaveLength(1);
     });

x-pack/plugins/lens/public/editor_frame_service/editor_frame/config_panel/layer_panel.tsx

@@ -385,7 +385,24 @@ export function LayerPanel(
           </header>
 
           {groups.map((group, groupIndex) => {
-            const isMissing = !isEmptyLayer && group.required && group.accessors.length === 0;
+            let isMissing = false;
+
+            if (!isEmptyLayer && group.required) {
+              isMissing = group.requiredMinDimensionCount
+                ? group.accessors.length < group.requiredMinDimensionCount
+                : group.accessors.length === 0;
+            }
+
+            const isMissingError = !group.requiredMinDimensionCount
+              ? i18n.translate('xpack.lens.editorFrame.requiresFieldWarningLabel', {
+                  defaultMessage: 'Requires field',
+                })
+              : i18n.translate('xpack.lens.editorFrame.requiresTwoOrMoreFieldsWarningLabel', {
+                  defaultMessage: 'Requires {requiredMinDimensionCount} fields',
+                  values: {
+                    requiredMinDimensionCount: group.requiredMinDimensionCount,
+                  },
+                });
             const isOptional = !group.required;
             return (
               <EuiFormRow
@@ -423,13 +440,7 @@ export function LayerPanel(
                 labelType="legend"
                 key={group.groupId}
                 isInvalid={isMissing}
-                error={
-                  isMissing
-                    ? i18n.translate('xpack.lens.editorFrame.requiredDimensionWarningLabel', {
-                        defaultMessage: 'Required dimension',
-                      })
-                    : []
-                }
+                error={isMissing ? isMissingError : []}
               >
                 <>
                   {group.accessors.length ? (

x-pack/plugins/lens/public/pie_visualization/constants.ts

@@ -6,9 +6,11 @@
  */
 
 import { i18n } from '@kbn/i18n';
+import { PartitionLayout } from '@elastic/charts';
 import { LensIconChartDonut } from '../assets/chart_donut';
 import { LensIconChartPie } from '../assets/chart_pie';
 import { LensIconChartTreemap } from '../assets/chart_treemap';
+import { LensIconChartMosaic } from '../assets/chart_mosaic';
 
 const groupLabel = i18n.translate('xpack.lens.pie.groupLabel', {
   defaultMessage: 'Proportion',
@@ -20,27 +22,37 @@ export const CHART_NAMES = {
     label: i18n.translate('xpack.lens.pie.donutLabel', {
       defaultMessage: 'Donut',
     }),
+    partitionType: PartitionLayout.sunburst,
     groupLabel,
   },
   pie: {
     icon: LensIconChartPie,
     label: i18n.translate('xpack.lens.pie.pielabel', {
       defaultMessage: 'Pie',
     }),
-
+    partitionType: PartitionLayout.sunburst,
     groupLabel,
   },
   treemap: {
     icon: LensIconChartTreemap,
     label: i18n.translate('xpack.lens.pie.treemaplabel', {
       defaultMessage: 'Treemap',
     }),
-
+    partitionType: PartitionLayout.treemap,
+    groupLabel,
+  },
+  mosaic: {
+    icon: LensIconChartMosaic,
+    label: i18n.translate('xpack.lens.pie.mosaiclabel', {
+      defaultMessage: 'Mosaic',
+    }),
+    partitionType: PartitionLayout.mosaic,
     groupLabel,
   },
 };
 
 export const MAX_PIE_BUCKETS = 3;
 export const MAX_TREEMAP_BUCKETS = 2;
+export const MAX_MOSAIC_BUCKETS = 2;
 
 export const DEFAULT_PERCENT_DECIMALS = 2;

x-pack/plugins/lens/public/pie_visualization/render_function.tsx

@@ -16,7 +16,6 @@ import {
   Partition,
   PartitionConfig,
   PartitionLayer,
-  PartitionLayout,
   PartitionFillLabel,
   RecursivePartial,
   Position,
@@ -29,7 +28,12 @@ import { VisualizationContainer } from '../visualization_container';
 import { CHART_NAMES, DEFAULT_PERCENT_DECIMALS } from './constants';
 import type { FormatFactory } from '../../common';
 import type { PieExpressionProps } from '../../common/expressions';
-import { getSliceValue, getFilterContext } from './render_helpers';
+import {
+  getSliceValue,
+  getFilterContext,
+  isTreemapOrMosaicShape,
+  byDataColorPaletteMap,
+} from './render_helpers';
 import { EmptyPlaceholder } from '../shared_components';
 import './visualization.scss';
 import {
@@ -110,6 +114,19 @@ export function PieComponent(
     })
   ).length;
 
+  let byDataPalette: ReturnType<typeof byDataColorPaletteMap>;
+
+  const shouldUseByDataPalette = !syncColors && ['mosaic'].includes(shape) && bucketColumns[1]?.id;
+
+  if (shouldUseByDataPalette) {
+    byDataPalette = byDataColorPaletteMap(
+      firstTable,
+      bucketColumns[1].id,
+      paletteService.get(palette.name),
+      palette
+    );
+  }
+
   const layers: PartitionLayer[] = bucketColumns.map((col, layerIndex) => {
     return {
       groupByRollup: (d: Datum) => d[col.id] ?? EMPTY_SLICE,
@@ -128,9 +145,14 @@ export function PieComponent(
         fillColor: (d) => {
           const seriesLayers: SeriesLayer[] = [];
 
+          // Mind the difference here: the contrast computation for the text ignores the alpha/opacity
+          // therefore change it for dask mode
+          const defaultColor = isDarkMode ? 'rgba(0,0,0,0)' : 'rgba(255,255,255,0)';
+
           // Color is determined by round-robin on the index of the innermost slice
           // This has to be done recursively until we get to the slice index
           let tempParent: typeof d | typeof d['parent'] = d;
+
           while (tempParent.parent && tempParent.depth > 0) {
             seriesLayers.unshift({
               name: String(tempParent.parent.children[tempParent.sortIndex][0]),
@@ -140,12 +162,14 @@ export function PieComponent(
             tempParent = tempParent.parent;
           }
 
-          if (shape === 'treemap') {
+          if (byDataPalette && seriesLayers[1]) {
+            return byDataPalette.getColor(seriesLayers[1].name) || defaultColor;
+          }
+
+          if (isTreemapOrMosaicShape(shape)) {
             // Only highlight the innermost color of the treemap, as it accurately represents area
             if (layerIndex < bucketColumns.length - 1) {
-              // Mind the difference here: the contrast computation for the text ignores the alpha/opacity
-              // therefore change it for dask mode
-              return isDarkMode ? 'rgba(0,0,0,0)' : 'rgba(255,255,255,0)';
+              return defaultColor;
             }
             // only use the top level series layer for coloring
             if (seriesLayers.length > 1) {
@@ -164,14 +188,14 @@ export function PieComponent(
             palette.params
           );
 
-          return outputColor || 'rgba(0,0,0,0)';
+          return outputColor || defaultColor;
         },
       },
     };
   });
 
   const config: RecursivePartial<PartitionConfig> = {
-    partitionLayout: shape === 'treemap' ? PartitionLayout.treemap : PartitionLayout.sunburst,
+    partitionLayout: CHART_NAMES[shape].partitionType,
     fontFamily: chartTheme.barSeriesStyle?.displayValue?.fontFamily,
     outerSizeRatio: 1,
     specialFirstInnermostSector: true,
@@ -191,7 +215,7 @@ export function PieComponent(
     sectorLineWidth: 1.5,
     circlePadding: 4,
   };
-  if (shape === 'treemap') {
+  if (isTreemapOrMosaicShape(shape)) {
     if (hideLabels || categoryDisplay === 'hide') {
       config.fillLabel = { textColor: 'rgba(0,0,0,0)' };
     }
@@ -279,7 +303,9 @@ export function PieComponent(
           showLegend={
             !hideLabels &&
             (legendDisplay === 'show' ||
-              (legendDisplay === 'default' && bucketColumns.length > 1 && shape !== 'treemap'))
+              (legendDisplay === 'default' &&
+                bucketColumns.length > 1 &&
+                !isTreemapOrMosaicShape(shape)))
           }
           legendPosition={legendPosition || Position.Right}
           legendMaxDepth={nestedLegend ? undefined : 1 /* Color is based only on first layer */}