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[8.x] [Discover] [Unified Doc Viewer] Fix doc viewer not receiving focus on open (#191039) #194368

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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
*/

import React, { useMemo, useCallback, type ComponentType } from 'react';
import { get } from 'lodash';
import { i18n } from '@kbn/i18n';
import { css } from '@emotion/react';
import type { DataView } from '@kbn/data-views-plugin/public';
Expand All @@ -34,6 +33,7 @@ import useLocalStorage from 'react-use/lib/useLocalStorage';
import type { ToastsStart } from '@kbn/core-notifications-browser';
import type { DocViewFilterFn, DocViewRenderProps } from '@kbn/unified-doc-viewer/types';
import { UnifiedDocViewer } from '../lazy_doc_viewer';
import { useFlyoutA11y } from './use_flyout_a11y';

export interface UnifiedDocViewerFlyoutProps {
'data-test-subj'?: string;
Expand Down Expand Up @@ -71,6 +71,7 @@ function getIndexByDocId(hits: DataTableRecord[], id: string) {
}

export const FLYOUT_WIDTH_KEY = 'unifiedDocViewer:flyoutWidth';

/**
* Flyout displaying an expanded row details
*/
Expand Down Expand Up @@ -129,24 +130,29 @@ export function UnifiedDocViewerFlyout({

const onKeyDown = useCallback(
(ev: React.KeyboardEvent) => {
const nodeClasses = get(ev, 'target.className', '');
if (typeof nodeClasses === 'string' && nodeClasses.includes('euiDataGrid')) {
if (ev.target instanceof HTMLElement && ev.target.closest('.euiDataGrid__content')) {
// ignore events triggered from the data grid
return;
}

const nodeName = get(ev, 'target.nodeName', null);
if (typeof nodeName === 'string' && nodeName.toLowerCase() === 'input') {
if (ev.key === keys.ESCAPE) {
ev.preventDefault();
ev.stopPropagation();
onClose();
}

if (ev.target instanceof HTMLInputElement) {
// ignore events triggered from the search input
return;
}

if (ev.key === keys.ARROW_LEFT || ev.key === keys.ARROW_RIGHT) {
ev.preventDefault();
ev.stopPropagation();
setPage(activePage + (ev.key === keys.ARROW_RIGHT ? 1 : -1));
}
},
[activePage, setPage]
[activePage, onClose, setPage]
);

const addColumn = useCallback(
Expand Down Expand Up @@ -231,6 +237,7 @@ export function UnifiedDocViewerFlyout({
defaultMessage: 'Document',
});
const currentFlyoutTitle = flyoutTitle ?? defaultFlyoutTitle;
const { a11yProps, screenReaderDescription } = useFlyoutA11y({ isXlScreen });

return (
<EuiPortal>
Expand All @@ -250,7 +257,9 @@ export function UnifiedDocViewerFlyout({
maxWidth: `${isXlScreen ? `calc(100vw - ${DEFAULT_WIDTH}px)` : '90vw'} !important`,
}}
paddingSize="m"
{...a11yProps}
>
{screenReaderDescription}
<EuiFlyoutHeader hasBorder>
<EuiFlexGroup
direction="row"
Expand Down
Original file line number Diff line number Diff line change
@@ -0,0 +1,54 @@
/*
* 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", the "GNU Affero General Public License v3.0 only", and the "Server Side
* Public License v 1"; you may not use this file except in compliance with, at
* your election, the "Elastic License 2.0", the "GNU Affero General Public
* License v3.0 only", or the "Server Side Public License, v 1".
*/

import { EuiScreenReaderOnly, useGeneratedHtmlId } from '@elastic/eui';
import { i18n } from '@kbn/i18n';
import React, { useEffect, useState } from 'react';
import useUnmount from 'react-use/lib/useUnmount';

export const useFlyoutA11y = ({ isXlScreen }: { isXlScreen: boolean }) => {
const descriptionId = useGeneratedHtmlId();
const [triggerEl] = useState(document.activeElement);
const [flyoutEl, setFlyoutEl] = useState<HTMLElement>();

// Auto-focus push flyout on open or when switching to XL screen
useEffect(() => {
if (isXlScreen && flyoutEl && document.contains(flyoutEl)) {
// Wait a tick before focusing or focus will be stolen by the trigger element when
// switching from an overlay flyout to a push flyout (due to EUI focus lock)
setTimeout(() => flyoutEl.focus());
}
}, [flyoutEl, isXlScreen]);

// Return focus to the trigger element when the flyout is closed
useUnmount(() => {
if (triggerEl instanceof HTMLElement && document.contains(triggerEl)) {
triggerEl.focus();
}
});

return {
a11yProps: {
ref: setFlyoutEl,
role: isXlScreen ? 'dialog' : undefined,
tabindex: isXlScreen ? 0 : undefined,
'aria-describedby': isXlScreen ? descriptionId : undefined,
'data-no-focus-lock': isXlScreen || undefined,
},
screenReaderDescription: isXlScreen && (
<EuiScreenReaderOnly>
<p id={descriptionId} data-test-subj="unifiedDocViewerScreenReaderDescription">
{i18n.translate('unifiedDocViewer.flyout.screenReaderDescription', {
defaultMessage: 'You are in a non-modal dialog. To close the dialog, press Escape.',
})}
</p>
</EuiScreenReaderOnly>
),
};
};
Original file line number Diff line number Diff line change
Expand Up @@ -179,9 +179,9 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
it('should allow paginating docs in the flyout by clicking in the doc table', async function () {
await retry.try(async function () {
await dataGrid.clickRowToggle({ rowIndex: rowToInspect - 1 });
await testSubjects.exists(`docViewerFlyoutNavigationPage0`);
await testSubjects.existOrFail('docViewerFlyoutNavigationPage-0');
await dataGrid.clickRowToggle({ rowIndex: rowToInspect });
await testSubjects.exists(`docViewerFlyoutNavigationPage1`);
await testSubjects.existOrFail('docViewerFlyoutNavigationPage-1');
await dataGrid.closeFlyout();
});
});
Expand Down
209 changes: 209 additions & 0 deletions test/functional/apps/discover/group3/_doc_viewer.ts
Original file line number Diff line number Diff line change
Expand Up @@ -431,5 +431,214 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
expect(await dataGrid.isFieldPinnedInFlyout('@message')).to.be(false);
});
});

describe('flyout', () => {
let originalScreenSize = { width: 0, height: 0 };

const reduceScreenWidth = async () => {
await browser.setWindowSize(800, originalScreenSize.height);
};

const restoreScreenWidth = async () => {
await browser.setWindowSize(originalScreenSize.width, originalScreenSize.height);
};

before(async () => {
originalScreenSize = await browser.getWindowSize();
});

beforeEach(async () => {
// open the flyout once initially to ensure table is the default tab
await dataGrid.clickRowToggle();
await discover.isShowingDocViewer();
await dataGrid.closeFlyout();
});

afterEach(async () => {
await restoreScreenWidth();
});

describe('keyboard navigation', () => {
it('should navigate between documents with arrow keys', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-0`);
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-1`);
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-2`);
await browser.pressKeys(browser.keys.ARROW_LEFT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-1`);
await browser.pressKeys(browser.keys.ARROW_LEFT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-0`);
});

it('should not navigate between documents with arrow keys when the search input is focused', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-0`);
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-1`);
await testSubjects.click('unifiedDocViewerFieldsSearchInput');
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-1`);
await browser.pressKeys(browser.keys.TAB);
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-2`);
});

it('should not navigate between documents with arrow keys when the data grid is focused', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-0`);
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-1`);
await testSubjects.click('dataGridHeaderCell-name');
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-1`);
await browser.pressKeys(browser.keys.TAB);
await browser.pressKeys(browser.keys.ARROW_RIGHT);
await testSubjects.existOrFail(`docViewerFlyoutNavigationPage-2`);
});

it('should close the flyout with the escape key', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
expect(await discover.isShowingDocViewer()).to.be(true);
await browser.pressKeys(browser.keys.ESCAPE);
expect(await discover.isShowingDocViewer()).to.be(false);
});

it('should close the flyout with the escape key when the search input is focused', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
expect(await discover.isShowingDocViewer()).to.be(true);
await testSubjects.click('unifiedDocViewerFieldsSearchInput');
await browser.pressKeys(browser.keys.ESCAPE);
expect(await discover.isShowingDocViewer()).to.be(false);
});

it('should not close the flyout with the escape key when the data grid is focused', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
expect(await discover.isShowingDocViewer()).to.be(true);
await testSubjects.click('dataGridHeaderCell-name');
await browser.pressKeys(browser.keys.ESCAPE);
expect(await discover.isShowingDocViewer()).to.be(true);
await browser.pressKeys(browser.keys.TAB);
await browser.pressKeys(browser.keys.ESCAPE);
expect(await discover.isShowingDocViewer()).to.be(false);
});
});

describe('accessibility', () => {
it('should focus the flyout on open, and retain focus when resizing between push and overlay flyouts', async () => {
// push -> overlay -> push
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
let activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be('docViewerFlyout');
await reduceScreenWidth();
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be('docViewerFlyout');
await restoreScreenWidth();
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be('docViewerFlyout');
// overlay -> push -> overlay
await browser.pressKeys(browser.keys.ESCAPE);
await reduceScreenWidth();
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be('docViewerFlyout');
await restoreScreenWidth();
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be('docViewerFlyout');
await reduceScreenWidth();
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be('docViewerFlyout');
});

it('should return focus to the trigger element when the flyout is closed', async () => {
// push
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await browser.pressKeys(browser.keys.ESCAPE);
let activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be(
'docTableExpandToggleColumn'
);
// push -> overlay
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await reduceScreenWidth();
await browser.pressKeys(browser.keys.ESCAPE);
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be(
'docTableExpandToggleColumn'
);
// overlay
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await browser.pressKeys(browser.keys.ESCAPE);
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be(
'docTableExpandToggleColumn'
);
// overlay -> push
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await restoreScreenWidth();
await browser.pressKeys(browser.keys.ESCAPE);
activeElement = await find.activeElement();
expect(await activeElement.getAttribute('data-test-subj')).to.be(
'docTableExpandToggleColumn'
);
});

it('should show custom screen reader description push flyout is active', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await testSubjects.existOrFail('unifiedDocViewerScreenReaderDescription', {
allowHidden: true,
});
});

it('should not show custom screen reader description when overlay flyout active', async () => {
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
await reduceScreenWidth();
expect(
await testSubjects.exists('unifiedDocViewerScreenReaderDescription', {
allowHidden: true,
})
).to.be(false);
});

it('should use expected a11y attributes', async () => {
// push flyout
await dataGrid.clickRowToggle({ defaultTabId: false });
await discover.isShowingDocViewer();
let role = await testSubjects.getAttribute('docViewerFlyout', 'role');
let tabindex = await testSubjects.getAttribute('docViewerFlyout', 'tabindex');
let describedBy = await testSubjects.getAttribute('docViewerFlyout', 'aria-describedby');
let noFocusLock = await testSubjects.getAttribute(
'docViewerFlyout',
'data-no-focus-lock'
);
expect(role).to.be('dialog');
expect(tabindex).to.be('0');
expect(await find.existsByCssSelector(`#${describedBy}`)).to.be(true);
expect(noFocusLock).to.be('true');
// overlay flyout
await reduceScreenWidth();
role = await testSubjects.getAttribute('docViewerFlyout', 'role');
tabindex = await testSubjects.getAttribute('docViewerFlyout', 'tabindex');
describedBy = await testSubjects.getAttribute('docViewerFlyout', 'aria-describedby');
noFocusLock = await testSubjects.getAttribute('docViewerFlyout', 'data-no-focus-lock');
expect(role).to.be('dialog');
expect(tabindex).to.be('0');
expect(await find.existsByCssSelector(`#${describedBy}`)).to.be(true);
expect(noFocusLock).to.be(null);
});
});
});
});
}
6 changes: 4 additions & 2 deletions test/functional/services/data_grid.ts
Original file line number Diff line number Diff line change
Expand Up @@ -357,7 +357,7 @@ export class DataGridService extends FtrService {
}

public async clickRowToggle(
{ defaultTabId, ...options }: SelectOptions & { defaultTabId?: string } = {
{ defaultTabId, ...options }: SelectOptions & { defaultTabId?: string | false } = {
isAnchorRow: false,
rowIndex: 0,
}
Expand Down Expand Up @@ -389,7 +389,9 @@ export class DataGridService extends FtrService {
throw new Error('Unable to find row toggle element');
}

await this.clickDocViewerTab(defaultTabId ?? 'doc_view_table');
if (defaultTabId !== false) {
await this.clickDocViewerTab(defaultTabId ?? 'doc_view_table');
}
}

public async isShowingDocViewer() {
Expand Down