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[Glitch] Improve focus handling with dropdown menus 

Port 396b8cdd0f to glitch-soc
main
ThibG 2019-08-07 13:58:53 +02:00 committed by Thibaut Girka
parent 95fc39a1e6
commit e8e980cdac
1 changed files with 35 additions and 7 deletions
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42
app/javascript/flavours/glitch/components/dropdown_menu.js
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@ -45,7 +45,6 @@ class DropdownMenu extends React.PureComponent {
document.addEventListener('click', this.handleDocumentClick, false); document.addEventListener('click', this.handleDocumentClick, false);
document.addEventListener('keydown', this.handleKeyDown, false); document.addEventListener('keydown', this.handleKeyDown, false);
document.addEventListener('touchend', this.handleDocumentClick, listenerOptions); document.addEventListener('touchend', this.handleDocumentClick, listenerOptions);
this.activeElement = document.activeElement;
if (this.focusedItem && this.props.openedViaKeyboard) { if (this.focusedItem && this.props.openedViaKeyboard) {
this.focusedItem.focus(); this.focusedItem.focus();
} }
@ -56,9 +55,6 @@ class DropdownMenu extends React.PureComponent {
document.removeEventListener('click', this.handleDocumentClick, false); document.removeEventListener('click', this.handleDocumentClick, false);
document.removeEventListener('keydown', this.handleKeyDown, false); document.removeEventListener('keydown', this.handleKeyDown, false);
document.removeEventListener('touchend', this.handleDocumentClick, listenerOptions); document.removeEventListener('touchend', this.handleDocumentClick, listenerOptions);
if (this.activeElement) {
this.activeElement.focus();
}
} }
setRef = c => { setRef = c => {
@ -117,7 +113,7 @@ class DropdownMenu extends React.PureComponent {
} }
} }
handleItemKeyUp = e => { handleItemKeyPress = e => {
if (e.key === 'Enter' || e.key === ' ') { if (e.key === 'Enter' || e.key === ' ') {
this.handleClick(e); this.handleClick(e);
} }
@ -147,7 +143,7 @@ class DropdownMenu extends React.PureComponent {
return ( return (
<li className='dropdown-menu__item' key={`${text}-${i}`}> <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} onKeyUp={this.handleItemKeyUp} data-index={i}> <a href={href} target='_blank' rel='noopener' role='button' tabIndex='0' ref={i === 0 ? this.setFocusRef : null} onClick={this.handleClick} onKeyPress={this.handleItemKeyPress} data-index={i}>
{text} {text}
</a> </a>
</li> </li>
@ -214,15 +210,44 @@ export default class Dropdown extends React.PureComponent {
} else { } else {
const { top } = target.getBoundingClientRect(); const { top } = target.getBoundingClientRect();
const placement = top * 2 < innerHeight ? 'bottom' : 'top'; const placement = top * 2 < innerHeight ? 'bottom' : 'top';
this.props.onOpen(this.state.id, this.handleItemClick, placement, type !== 'click'); this.props.onOpen(this.state.id, this.handleItemClick, placement, type !== 'click');
} }
} }
handleClose = () => { handleClose = () => {
if (this.activeElement) {
this.activeElement.focus();
this.activeElement = null;
}
this.props.onClose(this.state.id); this.props.onClose(this.state.id);
} }
handleMouseDown = () => {
if (!this.state.open) {
this.activeElement = document.activeElement;
}
}
handleButtonKeyDown = (e) => {
switch(e.key) {
case ' ':
case 'Enter':
this.handleMouseDown();
break;
}
}
handleKeyPress = (e) => {
switch(e.key) {
case ' ':
case 'Enter':
this.handleClick(e);
e.stopPropagation();
e.preventDefault();
break;
}
}
handleItemClick = (i, e) => { handleItemClick = (i, e) => {
const { action, to } = this.props.items[i]; const { action, to } = this.props.items[i];
@ -265,6 +290,9 @@ export default class Dropdown extends React.PureComponent {
size={size} size={size}
ref={this.setTargetRef} ref={this.setTargetRef}
onClick={this.handleClick} onClick={this.handleClick}
onMouseDown={this.handleMouseDown}
onKeyDown={this.handleButtonKeyDown}
onKeyPress={this.handleKeyPress}
/> />
<Overlay show={open} placement={dropdownPlacement} target={this.findTarget}> <Overlay show={open} placement={dropdownPlacement} target={this.findTarget}>