// Package imports. import PropTypes from 'prop-types'; import React from 'react'; import spring from 'react-motion/lib/spring'; 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, text: PropTypes.node, })), onChange: PropTypes.func.isRequired, onClose: PropTypes.func.isRequired, style: PropTypes.object, value: PropTypes.string, renderItemContents: PropTypes.func, openedViaKeyboard: PropTypes.bool, closeOnChange: PropTypes.bool, }; static defaultProps = { style: {}, closeOnChange: true, }; 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 = (e) => { const i = Number(e.currentTarget.getAttribute('data-index')); const { onChange, onClose, closeOnChange, items, } = this.props; const { name } = this.props.items[i]; e.preventDefault(); // Prevents change in focus on click if (closeOnChange) { 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 = (e) => { const index = Number(e.currentTarget.getAttribute('data-index')); const { items } = this.props; 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(this.props.items[Number(element.getAttribute('data-index'))].name); e.preventDefault(); e.stopPropagation(); } } setFocusRef = c => { this.focusedItem = c; } renderItem = (item, i) => { const { name, icon, meta, text } = item; const active = (name === (this.props.value || this.state.value)); const computedClass = classNames('composer--options--dropdown--content--item', { active }); let contents = this.props.renderItemContents && this.props.renderItemContents(item, i); if (!contents) { contents = ( {icon && }
{text} {meta}
); } return (
{contents}
); } // Rendering. render () { const { mounted } = this.state; const { items, onChange, onClose, style, } = this.props; // The result. return ( {({ 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
{!!items && items.map((item, i) => this.renderItem(item, i))}
)}
); } }