Only focus first element of dropdown menus if using keyboard (#8679)

* Only focus first item of dropdown if it was opened via keyboard

* Improve keyboard VS mouse navigation of dropdown menus
This commit is contained in:
ThibG 2018-09-13 20:31:33 +02:00 committed by Eugen Rochko
parent 09a87b2cdb
commit f8160b68b3
4 changed files with 29 additions and 16 deletions

View File

@ -1,8 +1,8 @@
export const DROPDOWN_MENU_OPEN = 'DROPDOWN_MENU_OPEN';
export const DROPDOWN_MENU_CLOSE = 'DROPDOWN_MENU_CLOSE';
export function openDropdownMenu(id, placement) {
return { type: DROPDOWN_MENU_OPEN, id, placement };
export function openDropdownMenu(id, placement, keyboard) {
return { type: DROPDOWN_MENU_OPEN, id, placement, keyboard };
}
export function closeDropdownMenu(id) {

View File

@ -23,6 +23,7 @@ class DropdownMenu extends React.PureComponent {
placement: PropTypes.string,
arrowOffsetLeft: PropTypes.string,
arrowOffsetTop: PropTypes.string,
openedViaKeyboard: PropTypes.bool,
};
static defaultProps = {
@ -42,13 +43,15 @@ class DropdownMenu extends React.PureComponent {
componentDidMount () {
document.addEventListener('click', this.handleDocumentClick, false);
document.addEventListener('keydown', this.handleKeyDown, false);
document.addEventListener('touchend', this.handleDocumentClick, listenerOptions);
if (this.focusedItem) this.focusedItem.focus();
if (this.focusedItem && this.props.openedViaKeyboard) this.focusedItem.focus();
this.setState({ mounted: true });
}
componentWillUnmount () {
document.removeEventListener('click', this.handleDocumentClick, false);
document.removeEventListener('keydown', this.handleKeyDown, false);
document.removeEventListener('touchend', this.handleDocumentClick, listenerOptions);
}
@ -62,13 +65,10 @@ class DropdownMenu extends React.PureComponent {
handleKeyDown = e => {
const items = Array.from(this.node.getElementsByTagName('a'));
const index = items.indexOf(e.currentTarget);
const index = items.indexOf(document.activeElement);
let element;
switch(e.key) {
case 'Enter':
this.handleClick(e);
break;
case 'ArrowDown':
element = items[index+1];
if (element) {
@ -96,6 +96,12 @@ class DropdownMenu extends React.PureComponent {
}
}
handleItemKeyDown = e => {
if (e.key === 'Enter') {
this.handleClick(e);
}
}
handleClick = e => {
const i = Number(e.currentTarget.getAttribute('data-index'));
const { action, to } = this.props.items[i];
@ -120,7 +126,7 @@ class DropdownMenu extends React.PureComponent {
return (
<li className='dropdown-menu__item' key={`${text}-${i}`}>
<a href={href} target='_blank' rel='noopener' role='button' tabIndex='0' ref={i === 0 ? this.setFocusRef : null} onClick={this.handleClick} onKeyDown={this.handleKeyDown} data-index={i}>
<a href={href} target='_blank' rel='noopener' role='button' tabIndex='0' ref={i === 0 ? this.setFocusRef : null} onClick={this.handleClick} onKeyDown={this.handleItemKeyDown} data-index={i}>
{text}
</a>
</li>
@ -170,6 +176,7 @@ export default class Dropdown extends React.PureComponent {
onClose: PropTypes.func.isRequired,
dropdownPlacement: PropTypes.string,
openDropdownId: PropTypes.number,
openedViaKeyboard: PropTypes.bool,
};
static defaultProps = {
@ -180,14 +187,14 @@ export default class Dropdown extends React.PureComponent {
id: id++,
};
handleClick = ({ target }) => {
handleClick = ({ target, type }) => {
if (this.state.id === this.props.openDropdownId) {
this.handleClose();
} else {
const { top } = target.getBoundingClientRect();
const placement = top * 2 < innerHeight ? 'bottom' : 'top';
this.props.onOpen(this.state.id, this.handleItemClick, placement);
this.props.onOpen(this.state.id, this.handleItemClick, placement, type !== 'click');
}
}
@ -197,6 +204,11 @@ export default class Dropdown extends React.PureComponent {
handleKeyDown = e => {
switch(e.key) {
case ' ':
case 'Enter':
this.handleClick(e);
e.preventDefault();
break;
case 'Escape':
this.handleClose();
break;
@ -233,7 +245,7 @@ export default class Dropdown extends React.PureComponent {
}
render () {
const { icon, items, size, title, disabled, dropdownPlacement, openDropdownId } = this.props;
const { icon, items, size, title, disabled, dropdownPlacement, openDropdownId, openedViaKeyboard } = this.props;
const open = this.state.id === openDropdownId;
return (
@ -249,7 +261,7 @@ export default class Dropdown extends React.PureComponent {
/>
<Overlay show={open} placement={dropdownPlacement} target={this.findTarget}>
<DropdownMenu items={items} onClose={this.handleClose} />
<DropdownMenu items={items} onClose={this.handleClose} openedViaKeyboard={openedViaKeyboard} />
</Overlay>
</div>
);

View File

@ -8,15 +8,16 @@ const mapStateToProps = state => ({
isModalOpen: state.get('modal').modalType === 'ACTIONS',
dropdownPlacement: state.getIn(['dropdown_menu', 'placement']),
openDropdownId: state.getIn(['dropdown_menu', 'openId']),
openedViaKeyboard: state.getIn(['dropdown_menu', 'keyboard']),
});
const mapDispatchToProps = (dispatch, { status, items }) => ({
onOpen(id, onItemClick, dropdownPlacement) {
onOpen(id, onItemClick, dropdownPlacement, keyboard) {
dispatch(isUserTouching() ? openModal('ACTIONS', {
status,
actions: items,
onClick: onItemClick,
}) : openDropdownMenu(id, dropdownPlacement));
}) : openDropdownMenu(id, dropdownPlacement, keyboard));
},
onClose(id) {
dispatch(closeModal());

View File

@ -4,12 +4,12 @@ import {
DROPDOWN_MENU_CLOSE,
} from '../actions/dropdown_menu';
const initialState = Immutable.Map({ openId: null, placement: null });
const initialState = Immutable.Map({ openId: null, placement: null, keyboard: false });
export default function dropdownMenu(state = initialState, action) {
switch (action.type) {
case DROPDOWN_MENU_OPEN:
return state.merge({ openId: action.id, placement: action.placement });
return state.merge({ openId: action.id, placement: action.placement, keyboard: action.keyboard });
case DROPDOWN_MENU_CLOSE:
return state.get('openId') === action.id ? state.set('openId', null) : state;
default: