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Improve accessibility (part 4) (#4408) 

* fix(dropdown_menu): Keyboard navigation

* fix(icon_button): Add aria-pressed attribute

* fix(privacy_dropdown): Make accessible

* fix(emoji_picker_dropdown): Make accessible

* fix(icon_button): Support tabIndex

* fix(actions_modal): Remove icon from tab order

* fix(dropdown_menu): Add role=group

* fix(setting_toggle): Toggle via space key

* fix(dropdown_menu): Remove redundant handling of Space key

* fix(emoji_picker_dropdown): Remove redundant Space key handling

* fix(privacy_dropdown): Remove redundant Space key handling

* fix(status): Switch to article and add aria-posinset, aria-setsize

* fix(status_list): Use role=feed and pass more ARIA props to Status

* chore(eslint): jsx-a11y/role-supports-aria-props
pull/111/head
Sorin Davidoi 2017-07-28 04:37:30 +02:00 committed by Eugen Rochko
parent 6270f9ce34
commit b7d47c2aef
9 changed files with 76 additions and 29 deletions
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2
.eslintrc.yml
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@ -121,6 +121,6 @@ rules:
jsx-a11y/onclick-has-focus: warn
jsx-a11y/onclick-has-role: warn
jsx-a11y/role-has-required-aria-props: warn
jsx-a11y/role-supports-aria-props: warn
jsx-a11y/role-supports-aria-props: off
jsx-a11y/scope: warn
jsx-a11y/tabindex-no-positive: warn

22
app/javascript/mastodon/components/dropdown_menu.js
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@ -74,6 +74,18 @@ export default class DropdownMenu extends React.PureComponent {
handleHide = () => this.setState({ expanded: false })
handleToggle = (e) => {
if (e.key === 'Enter') {
if (this.props.isUserTouching()) {
this.handleShow();
} else {
this.setState({ expanded: !this.state.expanded });
}
} else if (e.key === 'Escape') {
this.setState({ expanded: false });
}
}
renderItem = (item, i) => {
if (item === null) {
return <li key={`sep-${i}`} className='dropdown__sep' />;
@ -83,7 +95,7 @@ export default class DropdownMenu extends React.PureComponent {
return (
<li className='dropdown__content-list-item' key={`${text}-${i}`}>
<a href={href} target='_blank' rel='noopener' onClick={this.handleClick} data-index={i} className='dropdown__content-list-link'>
<a href={href} target='_blank' rel='noopener' role='button' tabIndex='0' autoFocus={i === 0} onClick={this.handleClick} data-index={i} className='dropdown__content-list-link'>
{text}
</a>
</li>
@ -107,7 +119,7 @@ export default class DropdownMenu extends React.PureComponent {
}
const dropdownItems = expanded && (
<ul className='dropdown__content-list'>
<ul role='group' className='dropdown__content-list' onClick={this.handleHide}>
{items.map(this.renderItem)}
</ul>
);
@ -115,14 +127,14 @@ export default class DropdownMenu extends React.PureComponent {
// No need to render the actual dropdown if we use the modal. If we
// don't render anything <Dropdow /> breaks, so we just put an empty div.
const dropdownContent = !isUserTouching ? (
<DropdownContent className={directionClass}>
<DropdownContent className={directionClass} >
{dropdownItems}
</DropdownContent>
) : <div />;
return (
<Dropdown ref={this.setRef} active={isUserTouching ? false : undefined} onShow={this.handleShow} onHide={this.handleHide}>
<DropdownTrigger className='icon-button' style={iconStyle} aria-label={ariaLabel}>
<Dropdown ref={this.setRef} active={isUserTouching ? false : expanded} onShow={this.handleShow} onHide={this.handleHide}>
<DropdownTrigger className='icon-button' style={iconStyle} role='button' aria-pressed={expanded} onKeyDown={this.handleToggle} tabIndex='0' aria-label={ariaLabel}>
<i className={iconClassname} aria-hidden />
</DropdownTrigger>

5
app/javascript/mastodon/components/icon_button.js
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@ -12,12 +12,14 @@ export default class IconButton extends React.PureComponent {
onClick: PropTypes.func,
size: PropTypes.number,
active: PropTypes.bool,
pressed: PropTypes.bool,
style: PropTypes.object,
activeStyle: PropTypes.object,
disabled: PropTypes.bool,
inverted: PropTypes.bool,
animate: PropTypes.bool,
overlay: PropTypes.bool,
tabIndex: PropTypes.string,
};
static defaultProps = {
@ -26,6 +28,7 @@ export default class IconButton extends React.PureComponent {
disabled: false,
animate: false,
overlay: false,
tabIndex: '0',
};
handleClick = (e) => {
@ -73,10 +76,12 @@ export default class IconButton extends React.PureComponent {
{({ rotate }) =>
<button
aria-label={this.props.title}
aria-pressed={this.props.pressed}
title={this.props.title}
className={classes.join(' ')}
onClick={this.handleClick}
style={style}
tabIndex={this.props.tabIndex}
>
<i style={{ transform: `rotate(${rotate}deg)` }} className={`fa fa-fw fa-${this.props.icon}`} aria-hidden='true' />
</button>

21
app/javascript/mastodon/components/status.js
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@ -41,6 +41,8 @@ export default class Status extends ImmutablePureComponent {
autoPlayGif: PropTypes.bool,
muted: PropTypes.bool,
intersectionObserverWrapper: PropTypes.object,
index: PropTypes.oneOf(PropTypes.string, PropTypes.number),
listLength: PropTypes.oneOf(PropTypes.string, PropTypes.number),
};
state = {
@ -59,6 +61,7 @@ export default class Status extends ImmutablePureComponent {
'boostModal',
'autoPlayGif',
'muted',
'listLength',
]
updateOnStates = ['isExpanded']
@ -67,8 +70,8 @@ export default class Status extends ImmutablePureComponent {
if (!nextState.isIntersecting && nextState.isHidden) {
// It's only if we're not intersecting (i.e. offscreen) and isHidden is true
// that either "isIntersecting" or "isHidden" matter, and then they're
// the only things that matter.
return this.state.isIntersecting || !this.state.isHidden;
// the only things that matter (and updated ARIA attributes).
return this.state.isIntersecting || !this.state.isHidden || nextProps.listLength !== this.props.listLength;
} else if (nextState.isIntersecting && !this.state.isIntersecting) {
// If we're going from a non-intersecting state to an intersecting state,
// (i.e. offscreen to onscreen), then we definitely need to re-render
@ -169,7 +172,7 @@ export default class Status extends ImmutablePureComponent {
// Exclude intersectionObserverWrapper from `other` variable
// because intersection is managed in here.
const { status, account, intersectionObserverWrapper, ...other } = this.props;
const { status, account, intersectionObserverWrapper, index, listLength, ...other } = this.props;
const { isExpanded, isIntersecting, isHidden } = this.state;
if (status === null) {
@ -178,10 +181,10 @@ export default class Status extends ImmutablePureComponent {
if (!isIntersecting && isHidden) {
return (
<div ref={this.handleRef} data-id={status.get('id')} style={{ height: `${this.height}px`, opacity: 0, overflow: 'hidden' }}>
<article ref={this.handleRef} data-id={status.get('id')} aria-posinset={index} aria-setsize={listLength} style={{ height: `${this.height}px`, opacity: 0, overflow: 'hidden' }}>
{status.getIn(['account', 'display_name']) || status.getIn(['account', 'username'])}
{status.get('content')}
</div>
</article>
);
}
@ -195,14 +198,14 @@ export default class Status extends ImmutablePureComponent {
const displayNameHTML = { __html: emojify(escapeTextContentForBrowser(displayName)) };
return (
<div className='status__wrapper' ref={this.handleRef} data-id={status.get('id')} >
<article className='status__wrapper' ref={this.handleRef} data-id={status.get('id')} aria-posinset={index} aria-setsize={listLength}>
<div className='status__prepend'>
<div className='status__prepend-icon-wrapper'><i className='fa fa-fw fa-retweet status__prepend-icon' /></div>
<FormattedMessage id='status.reblogged_by' defaultMessage='{name} boosted' values={{ name: <a onClick={this.handleAccountClick} data-id={status.getIn(['account', 'id'])} href={status.getIn(['account', 'url'])} className='status__display-name muted'><strong dangerouslySetInnerHTML={displayNameHTML} /></a> }} />
</div>
<Status {...other} wrapped status={status.get('reblog')} account={status.get('account')} />
</div>
</article>
);
}
@ -231,7 +234,7 @@ export default class Status extends ImmutablePureComponent {
}
return (
<div className={`status ${this.props.muted ? 'muted' : ''} status-${status.get('visibility')}`} data-id={status.get('id')} ref={this.handleRef}>
<article aria-posinset={index} aria-setsize={listLength} className={`status ${this.props.muted ? 'muted' : ''} status-${status.get('visibility')}`} data-id={status.get('id')} ref={this.handleRef}>
<div className='status__info'>
<a href={status.get('url')} className='status__relative-time' target='_blank' rel='noopener'><RelativeTimestamp timestamp={status.get('created_at')} /></a>
@ -249,7 +252,7 @@ export default class Status extends ImmutablePureComponent {
{media}
<StatusActionBar {...this.props} />
</div>
</article>
);
}

6
app/javascript/mastodon/components/status_list.js
View File

@ -113,11 +113,11 @@ export default class StatusList extends ImmutablePureComponent {
if (isLoading || statusIds.size > 0 || !emptyMessage) {
scrollableArea = (
<div className='scrollable' ref={this.setRef}>
<div className='status-list'>
<div role='feed' className='status-list'>
{prepend}
{statusIds.map((statusId) => {
return <StatusContainer key={statusId} id={statusId} intersectionObserverWrapper={this.intersectionObserverWrapper} />;
{statusIds.map((statusId, index) => {
return <StatusContainer key={statusId} id={statusId} index={index} listLength={statusIds.size} intersectionObserverWrapper={this.intersectionObserverWrapper} />;
})}
{loadMore}

23
app/javascript/mastodon/features/compose/components/emoji_picker_dropdown.js
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@ -65,6 +65,22 @@ export default class EmojiPickerDropdown extends React.PureComponent {
this.setState({ active: false });
}
onToggle = (e) => {
if (!this.state.loading && (!e.key || e.key === 'Enter')) {
if (this.state.active) {
this.onHideDropdown();
} else {
this.onShowDropdown();
}
}
}
onEmojiPickerKeyDown = (e) => {
if (e.key === 'Escape') {
this.onHideDropdown();
}
}
render () {
const { intl } = this.props;
@ -104,10 +120,11 @@ export default class EmojiPickerDropdown extends React.PureComponent {
};
const { active, loading } = this.state;
const title = intl.formatMessage(messages.emoji);
return (
<Dropdown ref={this.setRef} className='emoji-picker__dropdown' onShow={this.onShowDropdown} onHide={this.onHideDropdown}>
<DropdownTrigger className='emoji-button' title={intl.formatMessage(messages.emoji)}>
<Dropdown ref={this.setRef} className='emoji-picker__dropdown' active={active && !loading} onShow={this.onShowDropdown} onHide={this.onHideDropdown}>
<DropdownTrigger className='emoji-button' title={title} aria-label={title} aria-pressed={active} role='button' onKeyDown={this.onToggle} tabIndex={0} >
<img
className={`emojione ${active && loading ? 'pulse-loading' : ''}`}
alt='🙂'
@ -118,7 +135,7 @@ export default class EmojiPickerDropdown extends React.PureComponent {
<DropdownContent className='dropdown__left'>
{
this.state.active && !this.state.loading &&
(<EmojiPicker emojione={settings} onChange={this.handleChange} searchPlaceholder={intl.formatMessage(messages.emoji_search)} categories={categories} search />)
(<EmojiPicker emojione={settings} onChange={this.handleChange} searchPlaceholder={intl.formatMessage(messages.emoji_search)} onKeyDown={this.onEmojiPickerKeyDown} categories={categories} search />)
}
</DropdownContent>
</Dropdown>

8
app/javascript/mastodon/features/compose/components/privacy_dropdown.js
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@ -60,11 +60,15 @@ export default class PrivacyDropdown extends React.PureComponent {
}
handleClick = (e) => {
if (e.key === 'Escape') {
this.setState({ open: false });
} else if (!e.key || e.key === 'Enter') {
const value = e.currentTarget.getAttribute('data-index');
e.preventDefault();
this.setState({ open: false });
this.props.onChange(value);
}
}
onGlobalClick = (e) => {
if (e.target !== this.node && !this.node.contains(e.target) && this.state.open) {
@ -105,10 +109,10 @@ export default class PrivacyDropdown extends React.PureComponent {
return (
<div ref={this.setRef} className={`privacy-dropdown ${open ? 'active' : ''}`}>
<div className='privacy-dropdown__value'><IconButton className='privacy-dropdown__value-icon' icon={valueOption.icon} title={intl.formatMessage(messages.change_privacy)} size={18} active={open} inverted onClick={this.handleToggle} style={iconStyle} /></div>
<div className='privacy-dropdown__value'><IconButton className='privacy-dropdown__value-icon' icon={valueOption.icon} title={intl.formatMessage(messages.change_privacy)} size={18} pressed={open} active={open} inverted onClick={this.handleToggle} style={iconStyle} /></div>
<div className='privacy-dropdown__dropdown'>
{open && this.options.map(item =>
<div role='button' tabIndex='0' key={item.value} data-index={item.value} onClick={this.handleClick} className={`privacy-dropdown__option ${item.value === value ? 'active' : ''}`}>
<div role='button' tabIndex='0' key={item.value} data-index={item.value} onKeyDown={this.handleClick} onClick={this.handleClick} className={`privacy-dropdown__option ${item.value === value ? 'active' : ''}`}>
<div className='privacy-dropdown__option__icon'><i className={`fa fa-fw fa-${item.icon}`} /></div>
<div className='privacy-dropdown__option__content'>
<strong>{item.text}</strong>

8
app/javascript/mastodon/features/notifications/components/setting_toggle.js
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@ -18,13 +18,19 @@ export default class SettingToggle extends React.PureComponent {
this.props.onChange(this.props.settingKey, target.checked);
}
onKeyDown = e => {
if (e.key === ' ') {
this.props.onChange(this.props.settingKey, !e.target.checked);
}
}
render () {
const { prefix, settings, settingKey, label, meta } = this.props;
const id = ['setting-toggle', prefix, ...settingKey].filter(Boolean).join('-');
return (
<div className='setting-toggle'>
<Toggle id={id} checked={settings.getIn(settingKey)} onChange={this.onChange} />
<Toggle id={id} checked={settings.getIn(settingKey)} onChange={this.onChange} onKeyDown={this.onKeyDown} />
<label htmlFor={id} className='setting-toggle__label'>{label}</label>
{meta && <span className='setting-meta__label'>{meta}</span>}
</div>

2
app/javascript/mastodon/features/ui/components/actions_modal.js
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@ -24,7 +24,7 @@ export default class ActionsModal extends ImmutablePureComponent {
return (
<li key={`${text}-${i}`}>
<a href={href} target='_blank' rel='noopener' onClick={this.props.onClick} data-index={i} className={active && 'active'}>
{icon && <IconButton title={text} icon={icon} />}
{icon && <IconButton title={text} icon={icon} role='presentation' tabIndex='-1' />}
<div>
<div>{text}</div>
<div>{meta}</div>