diff options
Diffstat (limited to 'app/javascript/flavours/glitch/components/dropdown_menu.js')
-rw-r--r-- | app/javascript/flavours/glitch/components/dropdown_menu.js | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/app/javascript/flavours/glitch/components/dropdown_menu.js b/app/javascript/flavours/glitch/components/dropdown_menu.js new file mode 100644 index 000000000..d4a886a8b --- /dev/null +++ b/app/javascript/flavours/glitch/components/dropdown_menu.js @@ -0,0 +1,211 @@ +import React from 'react'; +import PropTypes from 'prop-types'; +import ImmutablePropTypes from 'react-immutable-proptypes'; +import IconButton from './icon_button'; +import Overlay from 'react-overlays/lib/Overlay'; +import Motion from 'flavours/glitch/util/optional_motion'; +import spring from 'react-motion/lib/spring'; +import detectPassiveEvents from 'detect-passive-events'; + +const listenerOptions = detectPassiveEvents.hasSupport ? { passive: true } : false; + +class DropdownMenu extends React.PureComponent { + + static contextTypes = { + router: PropTypes.object, + }; + + static propTypes = { + items: PropTypes.array.isRequired, + onClose: PropTypes.func.isRequired, + style: PropTypes.object, + placement: PropTypes.string, + arrowOffsetLeft: PropTypes.string, + arrowOffsetTop: PropTypes.string, + }; + + static defaultProps = { + style: {}, + placement: 'bottom', + }; + + handleDocumentClick = e => { + if (this.node && !this.node.contains(e.target)) { + this.props.onClose(); + } + } + + componentDidMount () { + document.addEventListener('click', this.handleDocumentClick, false); + document.addEventListener('touchend', this.handleDocumentClick, listenerOptions); + } + + componentWillUnmount () { + document.removeEventListener('click', this.handleDocumentClick, false); + document.removeEventListener('touchend', this.handleDocumentClick, listenerOptions); + } + + setRef = c => { + this.node = c; + } + + handleClick = e => { + const i = Number(e.currentTarget.getAttribute('data-index')); + const { action, to } = this.props.items[i]; + + this.props.onClose(); + + if (typeof action === 'function') { + e.preventDefault(); + action(); + } else if (to) { + e.preventDefault(); + this.context.router.history.push(to); + } + } + + renderItem (option, i) { + if (option === null) { + return <li key={`sep-${i}`} className='dropdown-menu__separator' />; + } + + const { text, href = '#' } = option; + + return ( + <li className='dropdown-menu__item' key={`${text}-${i}`}> + <a href={href} target='_blank' rel='noopener' role='button' tabIndex='0' autoFocus={i === 0} onClick={this.handleClick} data-index={i}> + {text} + </a> + </li> + ); + } + + render () { + const { items, style, placement, arrowOffsetLeft, arrowOffsetTop } = this.props; + + return ( + <Motion defaultStyle={{ opacity: 0, scaleX: 0.85, scaleY: 0.75 }} style={{ opacity: spring(1, { damping: 35, stiffness: 400 }), scaleX: spring(1, { damping: 35, stiffness: 400 }), scaleY: spring(1, { damping: 35, stiffness: 400 }) }}> + {({ opacity, scaleX, scaleY }) => ( + <div className='dropdown-menu' style={{ ...style, opacity: opacity, transform: `scale(${scaleX}, ${scaleY})` }} ref={this.setRef}> + <div className={`dropdown-menu__arrow ${placement}`} style={{ left: arrowOffsetLeft, top: arrowOffsetTop }} /> + + <ul> + {items.map((option, i) => this.renderItem(option, i))} + </ul> + </div> + )} + </Motion> + ); + } + +} + +export default class Dropdown extends React.PureComponent { + + static contextTypes = { + router: PropTypes.object, + }; + + static propTypes = { + icon: PropTypes.string.isRequired, + items: PropTypes.array.isRequired, + size: PropTypes.number.isRequired, + ariaLabel: PropTypes.string, + disabled: PropTypes.bool, + status: ImmutablePropTypes.map, + isUserTouching: PropTypes.func, + isModalOpen: PropTypes.bool.isRequired, + onModalOpen: PropTypes.func, + onModalClose: PropTypes.func, + }; + + static defaultProps = { + ariaLabel: 'Menu', + }; + + state = { + expanded: false, + }; + + handleClick = () => { + if (!this.state.expanded && this.props.isUserTouching() && this.props.onModalOpen) { + const { status, items } = this.props; + + this.props.onModalOpen({ + status, + actions: items, + onClick: this.handleItemClick, + }); + + return; + } + + this.setState({ expanded: !this.state.expanded }); + } + + handleClose = () => { + if (this.props.onModalClose) { + this.props.onModalClose(); + } + + this.setState({ expanded: false }); + } + + handleKeyDown = e => { + switch(e.key) { + case 'Enter': + this.handleClick(); + break; + case 'Escape': + this.handleClose(); + break; + } + } + + handleItemClick = e => { + const i = Number(e.currentTarget.getAttribute('data-index')); + const { action, to } = this.props.items[i]; + + this.handleClose(); + + if (typeof action === 'function') { + e.preventDefault(); + action(); + } else if (to) { + e.preventDefault(); + this.context.router.history.push(to); + } + } + + setTargetRef = c => { + this.target = c; + } + + findTarget = () => { + return this.target; + } + + render () { + const { icon, items, size, ariaLabel, disabled } = this.props; + const { expanded } = this.state; + + return ( + <div onKeyDown={this.handleKeyDown}> + <IconButton + icon={icon} + title={ariaLabel} + active={expanded} + disabled={disabled} + size={size} + ref={this.setTargetRef} + onClick={this.handleClick} + /> + + <Overlay show={expanded} placement='bottom' target={this.findTarget}> + <DropdownMenu items={items} onClose={this.handleClose} /> + </Overlay> + </div> + ); + } + +} |