Improve keyboard VS mouse navigation of dropdown menus
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5ff733b614
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@ -43,13 +43,15 @@ class DropdownMenu extends React.PureComponent {
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componentDidMount () {
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document.addEventListener('click', this.handleDocumentClick, false);
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document.addEventListener('keydown', this.handleKeyDown, false);
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document.addEventListener('touchend', this.handleDocumentClick, listenerOptions);
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if (this.focusedItem && this.props.openedviaKeyBoard) this.focusedItem.focus();
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if (this.focusedItem && this.props.openedViaKeyboard) this.focusedItem.focus();
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this.setState({ mounted: true });
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}
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componentWillUnmount () {
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document.removeEventListener('click', this.handleDocumentClick, false);
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document.removeEventListener('keydown', this.handleKeyDown, false);
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document.removeEventListener('touchend', this.handleDocumentClick, listenerOptions);
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}
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@ -63,13 +65,10 @@ class DropdownMenu extends React.PureComponent {
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handleKeyDown = e => {
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const items = Array.from(this.node.getElementsByTagName('a'));
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const index = items.indexOf(e.currentTarget);
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const index = items.indexOf(document.activeElement);
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let element;
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switch(e.key) {
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case 'Enter':
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this.handleClick(e);
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break;
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case 'ArrowDown':
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element = items[index+1];
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if (element) {
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@ -97,6 +96,12 @@ class DropdownMenu extends React.PureComponent {
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}
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}
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handleItemKeyDown = e => {
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if (e.key === 'Enter') {
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this.handleClick(e);
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}
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}
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handleClick = e => {
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const i = Number(e.currentTarget.getAttribute('data-index'));
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const { action, to } = this.props.items[i];
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@ -121,7 +126,7 @@ class DropdownMenu extends React.PureComponent {
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return (
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<li className='dropdown-menu__item' key={`${text}-${i}`}>
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<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}>
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<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}>
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{text}
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</a>
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</li>
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