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feat: accessibility improvements #363

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3c61fff
improves accessibility
jon-cullison Apr 3, 2025
9f789a2
adds default id
jon-cullison Apr 8, 2025
f8676e7
remove panel role prop, change header wrapper to div
jon-cullison Apr 10, 2025
089346c
remove uuid package
jon-cullison Apr 11, 2025
af2984e
use rc-util useId hook to handle id
jon-cullison May 7, 2025
55bc778
rename id to parentId in useItems hook, refactor heading element
jon-cullison May 21, 2025
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18 changes: 12 additions & 6 deletions assets/index.less
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,8 @@
border-top: none;
}

> .@{prefixCls}-header {
> .@{prefixCls}-header,
> .@{prefixCls}-header-wrapper > .@{prefixCls}-header {
display: flex;
align-items: center;
line-height: 22px;
Expand Down Expand Up @@ -76,10 +77,14 @@
}
}

& > &-item-disabled > .@{prefixCls}-header {
cursor: not-allowed;
color: #999;
background-color: #f3f3f3;

& > &-item-disabled {
> .@{prefixCls}-header,
> .@{prefixCls}-header-wrapper > .@{prefixCls}-header {
cursor: not-allowed;
color: #999;
background-color: #f3f3f3;
}
}

&-panel {
Expand All @@ -105,7 +110,8 @@
}

& > &-item-active {
> .@{prefixCls}-header {
> .@{prefixCls}-header,
> .@{prefixCls}-header-wrapper > .@{prefixCls}-header {
.arrow {
position: relative;
top: 2px;
Expand Down
7 changes: 7 additions & 0 deletions src/Collapse.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ import useItems from './hooks/useItems';
import type { CollapseProps } from './interface';
import CollapsePanel from './Panel';
import pickAttrs from '@rc-component/util/lib/pickAttrs';
import useId from '@rc-component/util/lib/hooks/useId';

function getActiveKeysArray(activeKey: React.Key | React.Key[]) {
let currentActiveKey = activeKey;
Expand Down Expand Up @@ -34,8 +35,11 @@ const Collapse = React.forwardRef<HTMLDivElement, CollapseProps>((props, ref) =>
items,
classNames: customizeClassNames,
styles,
headingLevel,
id,
} = props;

const collapseId = useId(id);
const collapseClassName = classNames(prefixCls, className);

const [activeKey, setActiveKey] = useMergedState<React.Key | React.Key[], React.Key[]>([], {
Expand Down Expand Up @@ -77,6 +81,8 @@ const Collapse = React.forwardRef<HTMLDivElement, CollapseProps>((props, ref) =>
activeKey,
classNames: customizeClassNames,
styles,
headingLevel,
parentId: collapseId,
});

// ======================== Render ========================
Expand All @@ -87,6 +93,7 @@ const Collapse = React.forwardRef<HTMLDivElement, CollapseProps>((props, ref) =>
style={style}
role={accordion ? 'tablist' : undefined}
{...pickAttrs(props, { aria: true, data: true })}
id={collapseId}
>
{mergedChildren}
</div>
Expand Down
35 changes: 25 additions & 10 deletions src/Panel.tsx
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import classNames from 'classnames';
import CSSMotion from 'rc-motion';
import KeyCode from '@rc-component/util/lib/KeyCode';
import type { PropsWithChildren } from 'react';
import React from 'react';
import type { CollapsePanelProps } from './interface';
import PanelContent from './PanelContent';
Expand All @@ -25,6 +26,8 @@ const CollapsePanel = React.forwardRef<HTMLDivElement, CollapsePanelProps>((prop
openMotion,
destroyInactivePanel,
children,
headingLevel,
id,
...resetProps
} = props;

Expand Down Expand Up @@ -87,17 +90,27 @@ const CollapsePanel = React.forwardRef<HTMLDivElement, CollapsePanelProps>((prop

// ======================== Render ========================
return (
<div {...resetProps} ref={ref} className={collapsePanelClassNames}>
<div {...headerProps}>
{showArrow && iconNode}
<span
className={classNames(`${prefixCls}-title`, customizeClassNames?.title)}
style={styles?.title}
{...(collapsible === 'header' ? collapsibleProps : {})}
<div {...resetProps} ref={ref} className={collapsePanelClassNames} id={id}>
<div
className={`${prefixCls}-header-wrapper`}
role={headingLevel ? 'heading' : undefined}
aria-level={headingLevel}
>
<div
{...headerProps}
id={id ? `${id}__header` : undefined}
aria-controls={id ? `${id}__content` : undefined}
>
{header}
</span>
{ifExtraExist && <div className={`${prefixCls}-extra`}>{extra}</div>}
{showArrow && iconNode}
<span
className={classNames(`${prefixCls}-title`, customizeClassNames?.title)}
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@zombieJ zombieJ Apr 23, 2025 •
edited
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replace this with HeadingElement instead of span directly. It's no need to have additional HeaderWrapper.

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@jon-cullison jon-cullison Apr 29, 2025 •
edited
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I can change HeaderWrapper, but replacing the span would not satisfy the a11y standards for collapse / accordion components. The heading element should wrap the header button, which is where HeaderWrapper is in this PR. Would you prefer it to be a div that is always present around the button, instead of conditionally rendered, but it only would have the heading role and aria-level when the prop is defined?

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OK. So you can add on the rc-collapse-header directly.

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@jon-cullison jon-cullison May 21, 2025 •
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Update - the rc-collapse-header element gets the button role, so to satisfy the a11y standards for the header, I changed to a div element that always wraps rc-collapse-header and will conditionally have the heading role and aria-level props set.

style={styles?.title}
{...(collapsible === 'header' ? collapsibleProps : {})}
>
{header}
</span>
{ifExtraExist && <div className={`${prefixCls}-extra`}>{extra}</div>}
</div>
</div>
<CSSMotion
visible={isActive}
Expand All @@ -110,6 +123,8 @@ const CollapsePanel = React.forwardRef<HTMLDivElement, CollapsePanelProps>((prop
return (
<PanelContent
ref={motionRef}
id={id ? `${id}__content` : undefined}
aria-labelledby={id ? `${id}__header` : undefined}
prefixCls={prefixCls}
className={motionClassName}
classNames={customizeClassNames}
Expand Down
3 changes: 3 additions & 0 deletions src/PanelContent.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ const PanelContent = React.forwardRef<
role,
classNames: customizeClassNames,
styles,
id,
} = props;

const [rendered, setRendered] = React.useState(isActive || forceRender);
Expand All @@ -33,6 +34,8 @@ const PanelContent = React.forwardRef<
return (
<div
ref={ref}
id={id}
aria-labelledby={props['aria-labelledby']}
className={classnames(
`${prefixCls}-panel`,
{
Expand Down
17 changes: 16 additions & 1 deletion src/hooks/useItems.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -5,10 +5,17 @@ import CollapsePanel from '../Panel';

type Props = Pick<
CollapsePanelProps,
'prefixCls' | 'onItemClick' | 'openMotion' | 'expandIcon' | 'classNames' | 'styles'
| 'prefixCls'
| 'onItemClick'
| 'openMotion'
| 'expandIcon'
| 'classNames'
| 'styles'
| 'headingLevel'
> &
Pick<CollapseProps, 'accordion' | 'collapsible' | 'destroyInactivePanel'> & {
activeKey: React.Key[];
parentId?: string;
};

const convertItemsToNodes = (items: ItemType[], props: Props) => {
Expand All @@ -23,6 +30,8 @@ const convertItemsToNodes = (items: ItemType[], props: Props) => {
expandIcon,
classNames: collapseClassNames,
styles,
headingLevel,
parentId,
} = props;

return items.map((item, index) => {
Expand Down Expand Up @@ -71,6 +80,8 @@ const convertItemsToNodes = (items: ItemType[], props: Props) => {
collapsible={mergeCollapsible}
onItemClick={handleItemClick}
destroyInactivePanel={mergeDestroyInactivePanel}
headingLevel={headingLevel}
id={parentId ? `${parentId}__item-${key}` : undefined}
>
{children}
</CollapsePanel>
Expand Down Expand Up @@ -99,6 +110,8 @@ const getNewChild = (
expandIcon,
classNames: collapseClassNames,
styles,
headingLevel,
parentId,
} = props;

const key = child.key || String(index);
Expand Down Expand Up @@ -142,6 +155,8 @@ const getNewChild = (
onItemClick: handleItemClick,
expandIcon,
collapsible: mergeCollapsible,
headingLevel,
id: parentId ? `${parentId}__item-${key}` : undefined,
};

// https://github.com/ant-design/ant-design/issues/20479
Expand Down
4 changes: 4 additions & 0 deletions src/interface.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ import type { CSSMotionProps } from 'rc-motion';
import type * as React from 'react';

export type CollapsibleType = 'header' | 'icon' | 'disabled';
export type HeadingLevelType = 1 | 2 | 3 | 4 | 5 | 6;

export interface ItemType
extends Omit<
Expand Down Expand Up @@ -39,6 +40,8 @@ export interface CollapseProps {
items?: ItemType[];
classNames?: Partial<Record<SemanticName, string>>;
styles?: Partial<Record<SemanticName, React.CSSProperties>>;
headingLevel?: HeadingLevelType;
id?: string;
}

export type SemanticName = 'header' | 'title' | 'body' | 'icon';
Expand All @@ -64,4 +67,5 @@ export interface CollapsePanelProps extends React.DOMAttributes<HTMLDivElement>
role?: string;
collapsible?: CollapsibleType;
children?: React.ReactNode;
headingLevel?: HeadingLevelType;
}
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