feat(partition): add debuggable state (#1117)

Add the debug state for partition charts with the following type signature:

fix #917

api/charts.api.md

@@ -582,6 +582,10 @@ export interface DebugState {
     //
     // (undocumented)
     lines?: DebugStateLine[];
+    // Warning: (ae-forgotten-export) The symbol "PartitionDebugState" needs to be exported by the entry point index.d.ts
+    //
+    // (undocumented)
+    partition?: PartitionDebugState[];
 }
 
 // @public (undocumented)

src/chart_types/partition_chart/state/chart_state.tsx

@@ -27,6 +27,7 @@ import { DebugState } from '../../../state/types';
 import { Dimensions } from '../../../utils/dimensions';
 import { render } from '../renderer/dom/layered_partition_chart';
 import { computeLegendSelector } from './selectors/compute_legend';
+import { getDebugStateSelector } from './selectors/get_debug_state';
 import { getLegendItemsExtra } from './selectors/get_legend_items_extra';
 import { getLegendItemsLabels } from './selectors/get_legend_items_labels';
 import { isTooltipVisibleSelector } from './selectors/is_tooltip_visible';
@@ -130,8 +131,7 @@ export class PartitionState implements InternalChartState {
     return null;
   }
 
-  // TODO
-  getDebugState(): DebugState {
-    return {};
+  getDebugState(state: GlobalChartState): DebugState {
+    return getDebugStateSelector(state);
   }
 }

src/chart_types/partition_chart/state/selectors/get_debug_state.test.ts

@@ -0,0 +1,139 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { Store } from 'redux';
+
+import { MockGlobalSpec, MockSeriesSpec } from '../../../../mocks/specs/specs';
+import { MockStore } from '../../../../mocks/store/store';
+import {
+  HeatmapElementEvent,
+  LayerValue,
+  PartitionElementEvent,
+  XYChartElementEvent,
+} from '../../../../specs/settings';
+import { onMouseDown, onMouseUp, onPointerMove } from '../../../../state/actions/mouse';
+import { GlobalChartState } from '../../../../state/chart_state';
+import { DebugState, PartitionDebugState, SinglePartitionDebugState } from '../../../../state/types';
+import { PartitionLayout } from '../../layout/types/config_types';
+import { isSunburst } from '../../layout/viewmodel/viewmodel';
+import { getDebugStateSelector } from './get_debug_state';
+import { createOnElementClickCaller } from './on_element_click_caller';
+
+describe.each([
+  [PartitionLayout.sunburst, 9, 9],
+  [PartitionLayout.treemap, 9, 6],
+  [PartitionLayout.flame, 9, 6],
+  [PartitionLayout.icicle, 9, 6],
+  [PartitionLayout.mosaic, 9, 6],
+])('Partition - debug state %s', (partitionLayout, numberOfElements, numberOfCalls) => {
+  type TestDatum = { cat1: string; cat2: string; val: number };
+  const specJSON = {
+    config: {
+      partitionLayout,
+    },
+    data: [
+      { cat1: 'Asia', cat2: 'Japan', val: 1 },
+      { cat1: 'Asia', cat2: 'China', val: 1 },
+      { cat1: 'Europe', cat2: 'Germany', val: 1 },
+      { cat1: 'Europe', cat2: 'Italy', val: 1 },
+      { cat1: 'North America', cat2: 'United States', val: 1 },
+      { cat1: 'North America', cat2: 'Canada', val: 1 },
+    ],
+    valueAccessor: (d: TestDatum) => d.val,
+    layers: [
+      {
+        groupByRollup: (d: TestDatum) => d.cat1,
+      },
+      {
+        groupByRollup: (d: TestDatum) => d.cat2,
+      },
+    ],
+  };
+  let store: Store<GlobalChartState>;
+  let onClickListener: jest.Mock<
+    undefined,
+    Array<(XYChartElementEvent | PartitionElementEvent | HeatmapElementEvent)[]>
+  >;
+  let debugState: DebugState;
+
+  beforeEach(() => {
+    onClickListener = jest.fn((): undefined => undefined);
+    store = MockStore.default({ width: 500, height: 500, top: 0, left: 0 });
+    const onElementClickCaller = createOnElementClickCaller();
+    store.subscribe(() => {
+      onElementClickCaller(store.getState());
+    });
+    MockStore.addSpecs(
+      [
+        MockSeriesSpec.sunburst(specJSON),
+        MockGlobalSpec.settings({ debugState: true, onElementClick: onClickListener }),
+      ],
+      store,
+    );
+    debugState = getDebugStateSelector(store.getState());
+  });
+
+  it('can compute debug state', () => {
+    // small multiple panels
+    expect(debugState.partition).toHaveLength(1);
+    // partition sectors
+    expect(debugState.partition![0].partitions).toHaveLength(numberOfElements);
+  });
+
+  it('can click on every sector', () => {
+    const [{ partitions }] = debugState.partition as PartitionDebugState[];
+    let counter = 0;
+    for (let index = 0; index < partitions.length; index++) {
+      const partition = partitions[index];
+      if (!isSunburst(partitionLayout) && partition.depth < 2) {
+        continue;
+      }
+      expectCorrectClickInfo(store, onClickListener, partition, counter);
+      counter++;
+    }
+    expect(onClickListener).toBeCalledTimes(numberOfCalls);
+  });
+});
+
+function expectCorrectClickInfo(
+  store: Store<GlobalChartState>,
+  onClickListener: jest.Mock<undefined, Array<(XYChartElementEvent | PartitionElementEvent | HeatmapElementEvent)[]>>,
+  partition: SinglePartitionDebugState,
+  index: number,
+) {
+  const {
+    depth,
+    value,
+    name,
+    coords: [x, y],
+  } = partition;
+
+  store.dispatch(onPointerMove({ x, y }, index * 3));
+  store.dispatch(onMouseDown({ x, y }, index * 3 + 1));
+  store.dispatch(onMouseUp({ x, y }, index * 3 + 2));
+
+  expect(onClickListener).toBeCalledTimes(index + 1);
+  const obj = onClickListener.mock.calls[index][0][0][0] as LayerValue[];
+  // pick the last element of the path
+  expect(obj[obj.length - 1]).toMatchObject({
+    depth,
+    groupByRollup: name,
+    value,
+  });
+}

src/chart_types/partition_chart/state/selectors/get_debug_state.ts

@@ -0,0 +1,72 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import createCachedSelector from 're-reselect';
+
+import { TAU } from '../../../../common/constants';
+import { Pixels, PointObject } from '../../../../common/geometry';
+import { getChartIdSelector } from '../../../../state/selectors/get_chart_id';
+import { DebugState, PartitionDebugState } from '../../../../state/types';
+import { QuadViewModel } from '../../layout/types/viewmodel_types';
+import { isSunburst } from '../../layout/viewmodel/viewmodel';
+import { partitionMultiGeometries } from './geometries';
+
+/** @internal */
+export const getDebugStateSelector = createCachedSelector(
+  [partitionMultiGeometries],
+  (geoms): DebugState => {
+    return {
+      partition: geoms.reduce<PartitionDebugState[]>((acc, { panelTitle, config, quadViewModel, diskCenter }) => {
+        const partitions: PartitionDebugState['partitions'] = quadViewModel.map((model) => {
+          const { dataName, depth, fillColor, value } = model;
+          return {
+            name: dataName,
+            depth,
+            color: fillColor,
+            value,
+            coords: isSunburst(config.partitionLayout)
+              ? getCoordsForSector(model, diskCenter)
+              : getCoordsForRectangle(model, diskCenter),
+          };
+        });
+        acc.push({
+          panelTitle,
+          partitions,
+        });
+        return acc;
+      }, []),
+    };
+  },
+)(getChartIdSelector);
+
+function getCoordsForSector({ x0, x1, y1px, y0px }: QuadViewModel, diskCenter: PointObject): [Pixels, Pixels] {
+  const X0 = x0 - TAU / 4;
+  const X1 = x1 - TAU / 4;
+  const cr = y0px + (y1px - y0px) / 2;
+  const angle = X0 + (X1 - X0) / 2;
+  const x = Math.round(Math.cos(angle) * cr + diskCenter.x);
+  const y = Math.round(Math.sin(angle) * cr + diskCenter.y);
+  return [x, y];
+}
+
+function getCoordsForRectangle({ x0, x1, y1px, y0px }: QuadViewModel, diskCenter: PointObject): [Pixels, Pixels] {
+  const y = Math.round(y0px + (y1px - y0px) / 2 + diskCenter.y);
+  const x = Math.round(x0 + (x1 - x0) / 2 + diskCenter.x);
+  return [x, y];
+}

src/components/chart_status.tsx

@@ -66,13 +66,13 @@ class ChartStatusComponent extends React.Component<ChartStatusStateProps> {
 }
 
 const mapStateToProps = (state: GlobalChartState): ChartStatusStateProps => {
-  const settings = getSettingsSpecSelector(state);
+  const { onRenderChange, debugState } = getSettingsSpecSelector(state);
 
   return {
     rendered: state.chartRendered,
     renderedCount: state.chartRenderedCount,
-    onRenderChange: settings.onRenderChange,
-    debugState: settings.debugState ? getDebugStateSelector(state) : null,
+    onRenderChange,
+    debugState: debugState ? getDebugStateSelector(state) : null,
   };
 };
 

src/state/types.ts

@@ -18,6 +18,7 @@
  */
 
 import type { Cell } from '../chart_types/heatmap/layout/types/viewmodel_types';
+import { Pixels } from '../common/geometry';
 import type { Position } from '../utils/common';
 import type { GeometryValue } from '../utils/geometry';
 
@@ -97,6 +98,21 @@ type HeatmapDebugState = {
   };
 };
 
+/** @public */
+export type SinglePartitionDebugState = {
+  name: string;
+  depth: number;
+  color: string;
+  value: number;
+  coords: [Pixels, Pixels];
+};
+
+/** @public */
+export type PartitionDebugState = {
+  panelTitle: string;
+  partitions: Array<SinglePartitionDebugState>;
+};
+
 /**
  * Describes _visible_ chart state for use in functional tests
  *
@@ -111,4 +127,5 @@ export interface DebugState {
   bars?: DebugStateBar[];
   /** Heatmap chart debug state */
   heatmap?: HeatmapDebugState;
+  partition?: PartitionDebugState[];
 }

stories/sunburst/10_2_slice.tsx

@@ -19,13 +19,14 @@
 
 import React from 'react';
 
-import { Chart, Datum, Partition, PartitionLayout } from '../../src';
+import { Chart, Datum, Partition, PartitionLayout, Settings } from '../../src';
 import { config } from '../../src/chart_types/partition_chart/layout/config';
 import { mocks } from '../../src/mocks/hierarchical';
 import { indexInterpolatedFillColor, interpolatorCET2s, productLookup } from '../utils/utils';
 
 export const Example = () => (
   <Chart className="story-chart">
+    <Settings debugState />
     <Partition
       id="spec_1"
       data={mocks.pie.slice(0, 2)}

stories/treemap/1_one_layer.tsx

@@ -36,7 +36,7 @@ const defaultFillColor = (colorMaker: any) => (d: any, i: number, a: any[]) => c
 
 export const Example = () => (
   <Chart className="story-chart">
-    <Settings theme={STORYBOOK_LIGHT_THEME} />
+    <Settings theme={STORYBOOK_LIGHT_THEME} debugState />
     <Partition
       id="spec_1"
       data={mocks.pie}