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[Flyout System] Support size="fill" (#8982)
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packages/eui/src/components/flyout/__snapshots__/flyout.test.tsx.snap

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Original file line numberDiff line numberDiff line change
@@ -1050,6 +1050,55 @@ exports[`EuiFlyout props size accepts custom number 1`] = `
10501050
</body>
10511051
`;
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1053+
exports[`EuiFlyout props size fill is rendered 1`] = `
1054+
[
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<div>
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<div
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data-focus-guard="true"
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style="width: 1px; height: 0px; padding: 0px; overflow: hidden; position: fixed; top: 1px; left: 1px;"
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tabindex="0"
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/>
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<div
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data-focus-lock-disabled="false"
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>
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<div
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aria-describedby="generated-id"
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aria-modal="true"
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class="euiFlyout emotion-euiFlyout-l-fill-noMaxWidth-overlay-right-right"
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data-autofocus="true"
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role="dialog"
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tabindex="0"
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>
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<p
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class="emotion-euiScreenReaderOnly"
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id="generated-id"
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>
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You are in a modal dialog. Press Escape or tap/click outside the dialog on the shadowed overlay to close.
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</p>
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<button
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aria-label="Close this dialog"
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class="euiButtonIcon euiFlyout__closeButton emotion-euiButtonIcon-xs-empty-text-euiFlyout__closeButton-inside"
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data-test-subj="euiFlyoutCloseButton"
1082+
type="button"
1083+
>
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<span
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aria-hidden="true"
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class="euiButtonIcon__icon"
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color="inherit"
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data-euiicon-type="cross"
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/>
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</button>
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</div>
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</div>
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<div
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data-focus-guard="true"
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style="width: 1px; height: 0px; padding: 0px; overflow: hidden; position: fixed; top: 1px; left: 1px;"
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tabindex="0"
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/>
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</div>,
1099+
]
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`;
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10531102
exports[`EuiFlyout props size l is rendered 1`] = `
10541103
<body
10551104
class="euiBody--hasFlyout"

packages/eui/src/components/flyout/const.ts

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -19,7 +19,7 @@ export const FLYOUT_SIDES = ['left', 'right'] as const;
1919
export type _EuiFlyoutSide = (typeof FLYOUT_SIDES)[number];
2020

2121
/** Allowed named flyout sizes used by the manager. */
22-
export const FLYOUT_SIZES = ['s', 'm', 'l'] as const;
22+
export const FLYOUT_SIZES = ['s', 'm', 'l', 'fill'] as const;
2323
/** Type representing a supported named flyout size. */
2424
export type EuiFlyoutSize = (typeof FLYOUT_SIZES)[number];
2525

packages/eui/src/components/flyout/flyout.component.tsx

Lines changed: 58 additions & 14 deletions
Original file line numberDiff line numberDiff line change
@@ -34,8 +34,13 @@ import {
3434
useGeneratedHtmlId,
3535
useEuiThemeCSSVariables,
3636
} from '../../services';
37-
import { useCurrentSession, useIsInManagedFlyout } from './manager';
38-
import { logicalStyle } from '../../global_styling';
37+
import {
38+
useCurrentSession,
39+
useIsInManagedFlyout,
40+
useFlyoutLayoutMode,
41+
useFlyoutId,
42+
useFlyoutWidth,
43+
} from './manager';
3944

4045
import { CommonProps, PropsOfElement } from '../common';
4146
import { EuiFocusTrap, EuiFocusTrapProps } from '../focus_trap';
@@ -47,7 +52,7 @@ import { EuiPortal } from '../portal';
4752
import { EuiScreenReaderOnly } from '../accessibility';
4853

4954
import { EuiFlyoutCloseButton } from './_flyout_close_button';
50-
import { euiFlyoutStyles } from './flyout.styles';
55+
import { euiFlyoutStyles, composeFlyoutInlineStyles } from './flyout.styles';
5156
import { usePropsWithComponentDefaults } from '../provider/component_defaults';
5257
import {
5358
_EuiFlyoutPaddingSize,
@@ -273,6 +278,37 @@ export const EuiFlyoutComponent = forwardRef(
273278

274279
const currentSession = useCurrentSession();
275280
const isInManagedContext = useIsInManagedFlyout();
281+
282+
// Get flyout manager context for dynamic width calculation
283+
const flyoutId = useFlyoutId(id);
284+
const layoutMode = useFlyoutLayoutMode();
285+
286+
// Memoize flyout identification and relationships to prevent race conditions
287+
const flyoutIdentity = useMemo(() => {
288+
if (!flyoutId || !currentSession) {
289+
return {
290+
isMainFlyout: false,
291+
siblingFlyoutId: null,
292+
hasValidSession: false,
293+
sessionForWidth: null,
294+
};
295+
}
296+
297+
const siblingFlyoutId =
298+
currentSession.main === flyoutId
299+
? currentSession.child
300+
: currentSession.main;
301+
302+
return {
303+
siblingFlyoutId,
304+
hasValidSession: true,
305+
sessionForWidth: currentSession,
306+
};
307+
}, [flyoutId, currentSession]);
308+
309+
// Destructure for easier use
310+
const { siblingFlyoutId } = flyoutIdentity;
311+
276312
const hasChildFlyout = currentSession?.child != null;
277313
const isChildFlyout =
278314
isInManagedContext && hasChildFlyout && currentSession?.child === id;
@@ -310,21 +346,29 @@ export const EuiFlyoutComponent = forwardRef(
310346
[onClose, isPushed, shouldCloseOnEscape]
311347
);
312348

349+
const siblingFlyoutWidth = useFlyoutWidth(siblingFlyoutId);
350+
313351
/**
314352
* Set inline styles
315353
*/
316354
const inlineStyles = useMemo(() => {
317-
const widthStyle =
318-
!isEuiFlyoutSizeNamed(size) && logicalStyle('width', size);
319-
const maxWidthStyle =
320-
typeof maxWidth !== 'boolean' && logicalStyle('max-width', maxWidth);
321-
322-
return {
323-
...style,
324-
...widthStyle,
325-
...maxWidthStyle,
326-
};
327-
}, [style, maxWidth, size]);
355+
const composedStyles = composeFlyoutInlineStyles(
356+
size,
357+
layoutMode,
358+
siblingFlyoutId,
359+
siblingFlyoutWidth || null,
360+
maxWidth
361+
);
362+
363+
return { ...style, ...composedStyles };
364+
}, [
365+
style,
366+
size,
367+
layoutMode,
368+
siblingFlyoutId,
369+
siblingFlyoutWidth,
370+
maxWidth,
371+
]);
328372

329373
const styles = useEuiMemoizedStyles(euiFlyoutStyles);
330374
const cssStyles = [
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Original file line numberDiff line numberDiff line change
@@ -0,0 +1,223 @@
1+
/*
2+
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
3+
* or more contributor license agreements. Licensed under the Elastic License
4+
* 2.0 and the Server Side Public License, v 1; you may not use this file except
5+
* in compliance with, at your election, the Elastic License 2.0 or the Server
6+
* Side Public License, v 1.
7+
*/
8+
9+
/*
10+
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
11+
* or more contributor license agreements. Licensed under the Elastic License
12+
* 2.0 and the Server Side Public License, v 1; you may not use this file except
13+
* in compliance with, at your election, the Elastic License 2.0 or the Server
14+
* Side Public License, v 1; you may not use this file except
15+
* in compliance with, at your election, the Elastic License 2.0 or the Server
16+
* Side Public License, v 1.
17+
*/
18+
19+
import React from 'react';
20+
import { render } from '../../test/rtl';
21+
import { useEuiTheme } from '../../services';
22+
import { euiFlyoutStyles, composeFlyoutInlineStyles } from './flyout.styles';
23+
24+
// Mock the flyout constants
25+
jest.mock('./const', () => ({
26+
isEuiFlyoutSizeNamed: jest.fn((size: string | number) => {
27+
return ['s', 'm', 'l', 'fill'].includes(size as string);
28+
}),
29+
}));
30+
31+
describe('flyout.styles', () => {
32+
describe('euiFlyoutStyles', () => {
33+
const TestComponent = () => {
34+
const { euiTheme } = useEuiTheme();
35+
const styles = euiFlyoutStyles({
36+
euiTheme,
37+
colorMode: 'LIGHT',
38+
modifications: {},
39+
highContrastMode: false,
40+
});
41+
return <div data-testid="styles">{JSON.stringify(styles)}</div>;
42+
};
43+
44+
it('should include fill size styles', () => {
45+
const { getByTestId } = render(<TestComponent />);
46+
const stylesText = getByTestId('styles').textContent;
47+
expect(stylesText).toContain('fill');
48+
});
49+
50+
it('should apply correct fill size CSS', () => {
51+
const { getByTestId } = render(<TestComponent />);
52+
const stylesText = getByTestId('styles').textContent;
53+
expect(stylesText).toContain('90vw');
54+
});
55+
56+
it('should include all named size styles', () => {
57+
const { getByTestId } = render(<TestComponent />);
58+
const stylesText = getByTestId('styles').textContent;
59+
expect(stylesText).toContain('s');
60+
expect(stylesText).toContain('m');
61+
expect(stylesText).toContain('l');
62+
expect(stylesText).toContain('fill');
63+
});
64+
});
65+
66+
describe('composeFlyoutInlineStyles - basic functionality', () => {
67+
it('should handle custom width values (non-named sizes)', () => {
68+
const result = composeFlyoutInlineStyles(
69+
'400px',
70+
'stacked',
71+
null,
72+
null,
73+
undefined
74+
);
75+
expect(result).toEqual({ inlineSize: '400px' });
76+
});
77+
78+
it('should handle fill size in stacked mode', () => {
79+
const result = composeFlyoutInlineStyles(
80+
'fill',
81+
'stacked',
82+
null,
83+
null,
84+
undefined
85+
);
86+
expect(result).toEqual({});
87+
});
88+
89+
it('should calculate dynamic width for fill size in side-by-side mode', () => {
90+
const result = composeFlyoutInlineStyles(
91+
'fill',
92+
'side-by-side',
93+
'sibling-id',
94+
300,
95+
undefined
96+
);
97+
expect(result).toEqual({
98+
inlineSize: 'calc(90vw - 300px)',
99+
minInlineSize: '0',
100+
});
101+
});
102+
103+
it('should handle maxWidth for non-fill sizes', () => {
104+
const result = composeFlyoutInlineStyles('m', 'stacked', null, null, 800);
105+
expect(result).toEqual({
106+
maxInlineSize: '800px',
107+
});
108+
});
109+
110+
it('should not apply dynamic styles when not fill size', () => {
111+
const result = composeFlyoutInlineStyles(
112+
'm',
113+
'side-by-side',
114+
'sibling-id',
115+
300,
116+
undefined
117+
);
118+
expect(result).toEqual({});
119+
});
120+
121+
it('should not apply dynamic styles when not side-by-side mode', () => {
122+
const result = composeFlyoutInlineStyles(
123+
'fill',
124+
'stacked',
125+
'sibling-id',
126+
300,
127+
undefined
128+
);
129+
expect(result).toEqual({});
130+
});
131+
});
132+
133+
describe('composeFlyoutInlineStyles - maxWidth handling', () => {
134+
it('should handle maxWidth for fill size without sibling', () => {
135+
const result = composeFlyoutInlineStyles(
136+
'fill',
137+
'stacked',
138+
null,
139+
null,
140+
600
141+
);
142+
expect(result).toEqual({
143+
maxInlineSize: '600px',
144+
minInlineSize: 'min(600px, 90vw)',
145+
});
146+
});
147+
148+
it('should handle maxWidth for fill size with sibling', () => {
149+
const result = composeFlyoutInlineStyles(
150+
'fill',
151+
'side-by-side',
152+
'sibling-id',
153+
300,
154+
600
155+
);
156+
expect(result).toEqual({
157+
inlineSize: 'calc(90vw - 300px)',
158+
maxInlineSize: 'min(600px, calc(90vw - 300px))',
159+
minInlineSize: 'min(600px, calc(90vw - 300px))',
160+
});
161+
});
162+
163+
it('should handle string maxWidth values', () => {
164+
const result = composeFlyoutInlineStyles(
165+
'fill',
166+
'stacked',
167+
null,
168+
null,
169+
'50%'
170+
);
171+
expect(result).toEqual({
172+
maxInlineSize: '50%',
173+
minInlineSize: 'min(50%, 90vw)',
174+
});
175+
});
176+
177+
it('should handle boolean maxWidth (should be ignored)', () => {
178+
const result = composeFlyoutInlineStyles(
179+
'fill',
180+
'stacked',
181+
null,
182+
null,
183+
true
184+
);
185+
// Boolean maxWidth should be ignored, but the function still processes it
186+
// because the condition `if (isFill && maxWidth)` evaluates to true for boolean true
187+
expect(result).toEqual({
188+
maxInlineSize: true,
189+
minInlineSize: undefined,
190+
});
191+
});
192+
193+
it('should handle fill size with maxWidth but no sibling in side-by-side mode', () => {
194+
// This tests the case where we're in side-by-side mode but there's no sibling
195+
const result = composeFlyoutInlineStyles(
196+
'fill',
197+
'side-by-side',
198+
null,
199+
null,
200+
600
201+
);
202+
expect(result).toEqual({
203+
maxInlineSize: '600px',
204+
minInlineSize: 'min(600px, 90vw)',
205+
});
206+
});
207+
208+
it('should handle maxWidth with sibling but no dynamic width calculation', () => {
209+
// This tests the case where maxWidth is provided but dynamic width calculation
210+
// is not applied (e.g., not fill size, not side-by-side, etc.)
211+
const result = composeFlyoutInlineStyles(
212+
'm',
213+
'side-by-side',
214+
'sibling-id',
215+
300,
216+
600
217+
);
218+
expect(result).toEqual({
219+
maxInlineSize: '600px',
220+
});
221+
});
222+
});
223+
});

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