// Package imports. import PropTypes from 'prop-types'; import React from 'react'; import spring from 'react-motion/lib/spring'; import Toggle from 'react-toggle'; import ImmutablePureComponent from 'react-immutable-pure-component'; import classNames from 'classnames'; // Components. import Icon from 'flavours/glitch/components/icon'; // Utils. import { withPassive } from 'flavours/glitch/util/dom_helpers'; import Motion from 'flavours/glitch/util/optional_motion'; import { assignHandlers } from 'flavours/glitch/util/react_helpers'; // The spring to use with our motion. const springMotion = spring(1, { damping: 35, stiffness: 400, }); // The component. export default class ComposerOptionsDropdownContent extends React.PureComponent { static propTypes = { items: PropTypes.arrayOf(PropTypes.shape({ icon: PropTypes.string, meta: PropTypes.node, name: PropTypes.string.isRequired, on: PropTypes.bool, text: PropTypes.node, })), onChange: PropTypes.func.isRequired, onClose: PropTypes.func.isRequired, style: PropTypes.object, value: PropTypes.string, openedViaKeyboard: PropTypes.bool, }; static defaultProps = { style: {}, }; state = { mounted: false, value: this.props.openedViaKeyboard ? this.props.items[0].name : undefined, }; // When the document is clicked elsewhere, we close the dropdown. handleDocumentClick = (e) => { if (this.node && !this.node.contains(e.target)) { this.props.onClose(); } } // Stores our node in `this.node`. handleRef = (node) => { this.node = node; } // On mounting, we add our listeners. componentDidMount () { document.addEventListener('click', this.handleDocumentClick, false); document.addEventListener('touchend', this.handleDocumentClick, withPassive); if (this.focusedItem) { this.focusedItem.focus({ preventScroll: true }); } else { this.node.firstChild.focus({ preventScroll: true }); } this.setState({ mounted: true }); } // On unmounting, we remove our listeners. componentWillUnmount () { document.removeEventListener('click', this.handleDocumentClick, false); document.removeEventListener('touchend', this.handleDocumentClick, withPassive); } handleClick = (name, e) => { const { onChange, onClose, items, } = this.props; const { on } = this.props.items.find(item => item.name === name); e.preventDefault(); // Prevents change in focus on click if ((on === null || typeof on === 'undefined')) { onClose(); } onChange(name); } // Handle changes differently whether the dropdown is a list of options or actions handleChange = (name) => { if (this.props.value) { this.props.onChange(name); } else { this.setState({ value: name }); } } handleKeyDown = (name, e) => { const { items } = this.props; const index = items.findIndex(item => { return (item.name === name); }); let element = null; switch(e.key) { case 'Escape': this.props.onClose(); break; case 'Enter': case ' ': this.handleClick(e); break; case 'ArrowDown': element = this.node.childNodes[index + 1] || this.node.firstChild; break; case 'ArrowUp': element = this.node.childNodes[index - 1] || this.node.lastChild; break; case 'Tab': if (e.shiftKey) { element = this.node.childNodes[index - 1] || this.node.lastChild; } else { element = this.node.childNodes[index + 1] || this.node.firstChild; } break; case 'Home': element = this.node.firstChild; break; case 'End': element = this.node.lastChild; break; } if (element) { element.focus(); this.handleChange(element.getAttribute('data-index')); e.preventDefault(); e.stopPropagation(); } } setFocusRef = c => { this.focusedItem = c; } renderItem = (item) => { const { name, icon, meta, on, text } = item; const active = (name === (this.props.value || this.state.value)); const computedClass = classNames('composer--options--dropdown--content--item', { active, lengthy: meta, 'toggled-off': !on && on !== null && typeof on !== 'undefined', 'toggled-on': on, 'with-icon': icon, }); let prefix = null; if (on !== null && typeof on !== 'undefined') { prefix = <Toggle checked={on} onChange={this.handleClick.bind(this, name)} />; } else if (icon) { prefix = <Icon className='icon' fixedWidth id={icon} /> } return ( <div className={computedClass} onClick={this.handleClick.bind(this, name)} onKeyDown={this.handleKeyDown.bind(this, name)} role='option' tabIndex='0' key={name} data-index={name} ref={active ? this.setFocusRef : null} > {prefix} <div className='content'> <strong>{text}</strong> {meta} </div> </div> ); } // Rendering. render () { const { mounted } = this.state; const { items, onChange, onClose, style, } = this.props; // The result. return ( <Motion defaultStyle={{ opacity: 0, scaleX: 0.85, scaleY: 0.75, }} style={{ opacity: springMotion, scaleX: springMotion, scaleY: springMotion, }} > {({ opacity, scaleX, scaleY }) => ( // It should not be transformed when mounting because the resulting // size will be used to determine the coordinate of the menu by // react-overlays <div className='composer--options--dropdown--content' ref={this.handleRef} role='listbox' style={{ ...style, opacity: opacity, transform: mounted ? `scale(${scaleX}, ${scaleY})` : null, }} > {!!items && items.map(item => this.renderItem(item))} </div> )} </Motion> ); } }