[Lens] Enable Table Pagination

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

@@ -16,13 +16,19 @@ export interface SortingState {
   direction: 'asc' | 'desc' | 'none';
 }
 
+export interface PagingState {
+  size: number;
+  enabled: boolean;
+}
+
 export interface DatatableArgs {
   title: string;
   description?: string;
   columns: ColumnConfigArg[];
   sortingColumnId: SortingState['columnId'];
   sortingDirection: SortingState['direction'];
   fitRowToContent?: boolean;
+  pageSize?: PagingState['size'];
 }
 
 export const getDatatable = (
@@ -62,6 +68,10 @@ export const getDatatable = (
       types: ['boolean'],
       help: '',
     },
+    pageSize: {
+      types: ['number'],
+      help: '',
+    },
   },
   async fn(...args) {
     /** Build optimization: prevent adding extra code into initial bundle **/

x-pack/plugins/lens/public/datatable_visualization/components/constants.ts

@@ -8,3 +8,4 @@
 export const LENS_EDIT_SORT_ACTION = 'sort';
 export const LENS_EDIT_RESIZE_ACTION = 'resize';
 export const LENS_TOGGLE_ACTION = 'toggle';
+export const LENS_EDIT_PAGESIZE_ACTION = 'pagesize';

x-pack/plugins/lens/public/datatable_visualization/components/table_basic.test.tsx

@@ -6,12 +6,16 @@
  */
 
 import React from 'react';
-import { ReactWrapper, shallow } from 'enzyme';
+import { ReactWrapper, shallow, mount } from 'enzyme';
 import { act } from 'react-dom/test-utils';
 import { mountWithIntl } from '@kbn/test/jest';
 import { EuiDataGrid } from '@elastic/eui';
 import { IAggType } from 'src/plugins/data/public';
-import { IFieldFormat } from 'src/plugins/field_formats/common';
+import {
+  FieldFormatParams,
+  IFieldFormat,
+  SerializedFieldFormat,
+} from 'src/plugins/field_formats/common';
 import { VisualizationContainer } from '../../visualization_container';
 import { EmptyPlaceholder } from '../../shared_components';
 import { LensIconChartDatatable } from '../../assets/chart_datatable';
@@ -20,6 +24,9 @@ import { LensMultiTable } from '../../../common';
 import { DatatableProps } from '../../../common/expressions';
 import { chartPluginMock } from 'src/plugins/charts/public/mocks';
 import { IUiSettingsClient } from 'kibana/public';
+import { RenderMode } from 'src/plugins/expressions';
+
+import { LENS_EDIT_PAGESIZE_ACTION } from './constants';
 
 function sampleArgs() {
   const indexPatternId = 'indexPatternId';
@@ -82,7 +89,7 @@ function sampleArgs() {
   return { data, args };
 }
 
-function copyData(data: LensMultiTable): LensMultiTable {
+function copyData<T>(data: T): T {
   return JSON.parse(JSON.stringify(data));
 }
 
@@ -658,4 +665,133 @@ describe('DatatableComponent', () => {
 
     expect(wrapper.find('[data-test-subj="lnsDataTable-footer-c"]').exists()).toBe(false);
   });
+
+  describe('pagination', () => {
+    it('enables pagination', async () => {
+      const { data, args } = sampleArgs();
+
+      args.pageSize = 10;
+
+      const wrapper = mount(
+        <DatatableComponent
+          data={data}
+          args={args}
+          formatFactory={(x) => x as IFieldFormat}
+          dispatchEvent={onDispatchEvent}
+          getType={jest.fn()}
+          paletteService={chartPluginMock.createPaletteRegistry()}
+          uiSettings={{ get: jest.fn() } as unknown as IUiSettingsClient}
+          renderMode="edit"
+        />
+      );
+
+      const paginationConfig = wrapper.find(EuiDataGrid).prop('pagination');
+      expect(paginationConfig).toBeTruthy();
+      expect(paginationConfig?.pageIndex).toBe(0); // should start at 0
+      expect(paginationConfig?.pageSize).toBe(args.pageSize);
+
+      // trigger new page
+      const newIndex = 3;
+      act(() => paginationConfig?.onChangePage(newIndex));
+      wrapper.update();
+
+      const updatedConfig = wrapper.find(EuiDataGrid).prop('pagination');
+      expect(updatedConfig).toBeTruthy();
+      expect(updatedConfig?.pageIndex).toBe(newIndex);
+      expect(updatedConfig?.pageSize).toBe(args.pageSize);
+    });
+
+    it('disables pagination by default', async () => {
+      const { data, args } = sampleArgs();
+
+      delete args.pageSize;
+
+      const wrapper = mount(
+        <DatatableComponent
+          data={data}
+          args={args}
+          formatFactory={(x) => x as IFieldFormat}
+          dispatchEvent={onDispatchEvent}
+          getType={jest.fn()}
+          paletteService={chartPluginMock.createPaletteRegistry()}
+          uiSettings={{ get: jest.fn() } as unknown as IUiSettingsClient}
+          renderMode="edit"
+        />
+      );
+
+      const paginationConfig = wrapper.find(EuiDataGrid).prop('pagination');
+      expect(paginationConfig).not.toBeTruthy();
+    });
+
+    it('dynamically toggles pagination', async () => {
+      const { data, args } = sampleArgs();
+
+      const argsWithPagination = copyData(args);
+      argsWithPagination.pageSize = 20;
+
+      const argsWithoutPagination = copyData(args);
+      delete argsWithoutPagination.pageSize;
+
+      const defaultProps = {
+        data,
+        formatFactory: (x?: SerializedFieldFormat<FieldFormatParams>) => x as IFieldFormat,
+        dispatchEvent: onDispatchEvent,
+        getType: jest.fn(),
+        paletteService: chartPluginMock.createPaletteRegistry(),
+        uiSettings: { get: jest.fn() } as unknown as IUiSettingsClient,
+        renderMode: 'edit' as RenderMode,
+      };
+
+      const wrapper = mount(
+        <DatatableComponent {...{ ...defaultProps, args: argsWithoutPagination }} />
+      );
+      wrapper.update();
+
+      expect(wrapper.find(EuiDataGrid).prop('pagination')).not.toBeTruthy();
+
+      wrapper.setProps({ args: argsWithPagination });
+      wrapper.update();
+
+      expect(wrapper.find(EuiDataGrid).prop('pagination')).toBeTruthy();
+
+      wrapper.setProps({ args: argsWithoutPagination });
+      wrapper.update();
+
+      expect(wrapper.find(EuiDataGrid).prop('pagination')).not.toBeTruthy();
+    });
+
+    it('dispatches event when page size changed', async () => {
+      const { data, args } = sampleArgs();
+
+      args.pageSize = 10;
+
+      const wrapper = mount(
+        <DatatableComponent
+          data={data}
+          args={args}
+          formatFactory={(x) => x as IFieldFormat}
+          dispatchEvent={onDispatchEvent}
+          getType={jest.fn()}
+          paletteService={chartPluginMock.createPaletteRegistry()}
+          uiSettings={{ get: jest.fn() } as unknown as IUiSettingsClient}
+          renderMode="edit"
+        />
+      );
+
+      const paginationConfig = wrapper.find(EuiDataGrid).prop('pagination');
+      expect(paginationConfig).toBeTruthy();
+
+      const sizeToChangeTo = 100;
+      paginationConfig?.onChangeItemsPerPage(sizeToChangeTo);
+
+      expect(onDispatchEvent).toHaveBeenCalledTimes(1);
+      expect(onDispatchEvent).toHaveBeenCalledWith({
+        name: 'edit',
+        data: {
+          action: LENS_EDIT_PAGESIZE_ACTION,
+          size: sizeToChangeTo,
+        },
+      });
+    });
+  });
 });

x-pack/plugins/lens/public/datatable_visualization/components/table_basic.tsx

@@ -7,7 +7,7 @@
 
 import './table_basic.scss';
 
-import React, { useCallback, useMemo, useRef, useState, useContext } from 'react';
+import React, { useCallback, useMemo, useRef, useState, useContext, useEffect } from 'react';
 import { i18n } from '@kbn/i18n';
 import useDeepCompareEffect from 'react-use/lib/useDeepCompareEffect';
 import {
@@ -30,6 +30,7 @@ import type {
   LensSortAction,
   LensResizeAction,
   LensToggleAction,
+  LensPagesizeAction,
 } from './types';
 import { createGridColumns } from './columns';
 import { createGridCell } from './cell_value';
@@ -50,6 +51,9 @@ const gridStyle: EuiDataGridStyle = {
   header: 'underline',
 };
 
+export const DEFAULT_PAGE_SIZE = 10;
+const PAGE_SIZE_OPTIONS = [DEFAULT_PAGE_SIZE, 20, 30, 50, 100];
+
 export const DatatableComponent = (props: DatatableRenderProps) => {
   const [firstTable] = Object.values(props.data.tables);
 
@@ -60,6 +64,22 @@ export const DatatableComponent = (props: DatatableRenderProps) => {
   });
   const [firstLocalTable, updateTable] = useState(firstTable);
 
+  // ** Pagination config
+  const [pagination, setPagination] = useState<{ pageIndex: number; pageSize: number } | undefined>(
+    undefined
+  );
+
+  useEffect(() => {
+    setPagination(
+      props.args.pageSize
+        ? {
+            pageIndex: 0,
+            pageSize: props.args.pageSize ?? DEFAULT_PAGE_SIZE,
+          }
+        : undefined
+    );
+  }, [props.args.pageSize]);
+
   useDeepCompareEffect(() => {
     setColumnConfig({
       columns: props.args.columns,
@@ -102,11 +122,35 @@ export const DatatableComponent = (props: DatatableRenderProps) => {
   );
 
   const onEditAction = useCallback(
-    (data: LensSortAction['data'] | LensResizeAction['data'] | LensToggleAction['data']) => {
+    (
+      data:
+        | LensSortAction['data']
+        | LensResizeAction['data']
+        | LensToggleAction['data']
+        | LensPagesizeAction['data']
+    ) => {
       dispatchEvent({ name: 'edit', data });
     },
     [dispatchEvent]
   );
+
+  const onChangeItemsPerPage = useCallback(
+    (pageSize) => onEditAction({ action: 'pagesize', size: pageSize }),
+    [onEditAction]
+  );
+
+  // active page isn't persisted, so we manage this state locally
+  const onChangePage = useCallback(
+    (pageIndex) => {
+      setPagination((_pagination) => {
+        if (_pagination) {
+          return { pageSize: _pagination?.pageSize, pageIndex };
+        }
+      });
+    },
+    [setPagination]
+  );
+
   const onRowContextMenuClick = useCallback(
     (data: LensTableRowContextMenuEvent['data']) => {
       dispatchEvent({ name: 'tableRowContextMenuClick', data });
@@ -346,6 +390,10 @@ export const DatatableComponent = (props: DatatableRenderProps) => {
         }}
       >
         <EuiDataGrid
+          key={
+            // we control the key when pagination is on to circumvent an EUI rendering bug
+            pagination && columns.map(({ id }) => id).join('-') + '-' + pagination.pageSize
+          }
           aria-label={dataGridAriaLabel}
           data-test-subj="lnsDataTable"
           rowHeightsOptions={
@@ -362,6 +410,14 @@ export const DatatableComponent = (props: DatatableRenderProps) => {
           renderCellValue={renderCellValue}
           gridStyle={gridStyle}
           sorting={sorting}
+          pagination={
+            pagination && {
+              ...pagination,
+              pageSizeOptions: PAGE_SIZE_OPTIONS,
+              onChangeItemsPerPage,
+              onChangePage,
+            }
+          }
           onColumnResize={onColumnResize}
           toolbarVisibility={false}
           renderFooterCellValue={renderSummaryRow}