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dropdown-group.js
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dropdown-group.js
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/* eslint react/no-find-dom-node: [0] */
import React, {createElement as el} from 'react'
import Menu from 'rebass/dist/Menu'
import ButtonOutline from 'rebass/dist/ButtonOutline'
function hasParentWithClassName (el, className) {
while (el && el.parentNode) {
if (el.classList.contains(className)) {
return true
}
el = el.parentNode
}
return false
}
class DropdownGroup extends React.Component {
constructor (props) {
super(props)
this.state = {
openMenu: null,
}
this.boundCloseMenu = this.closeMenu.bind(this)
this.nodeRefCallback = (node) => { this.node = node }
this.onKeyDown = (event) => {
if (event.key === 'Enter') {
event.preventDefault()
event.stopPropagation()
this.setState({openMenu: null})
}
}
}
componentDidMount () {
// Click away to dismiss
document.body.addEventListener('click', this.boundCloseMenu)
}
componentWillUnmount () {
document.body.removeEventListener('click', this.boundCloseMenu)
}
componentWillReceiveProps (nextProps) {
if (this.state.openMenu == null) {
return
}
// Find and open new menu
if (nextProps.menus.length > this.props.menus.length) {
for (let i = 0, len = nextProps.menus.length; i < len; i++) {
const menu = this.props.menus[i]
const nextMenu = nextProps.menus[i]
if (menu && nextMenu && menu.key !== nextMenu.key) {
this.setState({openMenu: i})
return
}
}
}
// Close if removed
if (nextProps.menus.length < this.props.menus.length) {
this.setState({openMenu: null})
}
}
componentDidUpdate (_, prevState) {
// Focus on open
if (!prevState.open && this.state.open && this.node) {
const el = this.node.querySelector('textarea')
if (el) {
el.focus()
}
}
}
render () {
return el('div',
{
className: 'DropdownGroup',
ref: this.nodeRefCallback,
onKeyDown: this.onKeyDown,
},
this.renderButtons(),
this.renderMenu()
)
}
renderButtons () {
const {menus, theme} = this.props
const {openMenu} = this.state
let buttons = []
for (let i = 0, len = menus.length; i < len; i++) {
// HACK
const {name, label} = menus[i].props
buttons.push(
el(ButtonOutline, {
key: `button${i}`,
onClick: this.makeOpenMenu(i),
theme: (openMenu === i ? 'primary' : theme),
inverted: false,
style: {
borderWidth: 0,
boxShadow: 'none',
outline: 'none',
},
rounded: false,
title: `Edit ${label}`,
},
el('span', {
style: {
maxWidth: '15rem',
verticalAlign: 'middle',
display: 'inline-block',
whiteSpace: 'pre',
overflow: 'hidden',
textOverflow: 'ellipsis',
textTransform: 'uppercase',
}},
(name || label)
)
)
)
}
return buttons
}
renderMenu () {
const {menus, theme} = this.props
const {openMenu} = this.state
if (openMenu == null) return
return el('div', {style: { position: 'relative' }},
el(Menu, {
theme,
style: {
textAlign: 'left',
position: 'absolute',
top: -1,
right: -1,
zIndex: 100,
marginBottom: '5rem',
},
}, menus[openMenu]
)
)
}
makeOpenMenu (index) {
return () => {
const {openMenu} = this.state
const toggleOrOpen = (openMenu === index ? null : index)
this.setState({openMenu: toggleOrOpen})
}
}
closeMenu (event) {
// Hack since we can't stopPropagation to body
if (event.type === 'click' && hasParentWithClassName(event.target, 'DropdownGroup')) {
// Keep open
return
}
// Close menu
const {openMenu} = this.state
if (openMenu != null) {
this.setState({openMenu: null})
}
}
}
DropdownGroup.propTypes =
{ menus: React.PropTypes.array.isRequired,
theme: React.PropTypes.string,
}
DropdownGroup.defaultProps =
{ theme: 'secondary' }
export default React.createFactory(DropdownGroup)