import React from 'react'; import ReactSwipeableViews from 'react-swipeable-views'; import ImmutablePropTypes from 'react-immutable-proptypes'; import PropTypes from 'prop-types'; import ExtendedVideoPlayer from '../../../components/extended_video_player'; import classNames from 'classnames'; import { defineMessages, injectIntl } from 'react-intl'; import IconButton from '../../../components/icon_button'; import ImmutablePureComponent from 'react-immutable-pure-component'; import ImageLoader from './image_loader'; const messages = defineMessages({ close: { id: 'lightbox.close', defaultMessage: 'Close' }, previous: { id: 'lightbox.previous', defaultMessage: 'Previous' }, next: { id: 'lightbox.next', defaultMessage: 'Next' }, }); @injectIntl export default class MediaModal extends ImmutablePureComponent { static propTypes = { media: ImmutablePropTypes.list.isRequired, index: PropTypes.number.isRequired, onClose: PropTypes.func.isRequired, intl: PropTypes.object.isRequired, }; state = { index: null, navigationHidden: false, }; handleSwipe = (index) => { this.setState({ index: index % this.props.media.size }); } handleNextClick = () => { this.setState({ index: (this.getIndex() + 1) % this.props.media.size }); } handlePrevClick = () => { this.setState({ index: (this.props.media.size + this.getIndex() - 1) % this.props.media.size }); } handleChangeIndex = (e) => { const index = Number(e.currentTarget.getAttribute('data-index')); this.setState({ index: index % this.props.media.size }); } handleKeyUp = (e) => { switch(e.key) { case 'ArrowLeft': this.handlePrevClick(); break; case 'ArrowRight': this.handleNextClick(); break; } } componentDidMount () { window.addEventListener('keyup', this.handleKeyUp, false); } componentWillUnmount () { window.removeEventListener('keyup', this.handleKeyUp); } getIndex () { return this.state.index !== null ? this.state.index : this.props.index; } toggleNavigation = () => { this.setState(prevState => ({ navigationHidden: !prevState.navigationHidden, })); }; render () { const { media, intl, onClose } = this.props; const { navigationHidden } = this.state; const index = this.getIndex(); let pagination = []; const leftNav = media.size > 1 && <button tabIndex='0' className='media-modal__nav media-modal__nav--left' onClick={this.handlePrevClick} aria-label={intl.formatMessage(messages.previous)}><i className='fa fa-fw fa-chevron-left' /></button>; const rightNav = media.size > 1 && <button tabIndex='0' className='media-modal__nav media-modal__nav--right' onClick={this.handleNextClick} aria-label={intl.formatMessage(messages.next)}><i className='fa fa-fw fa-chevron-right' /></button>; if (media.size > 1) { pagination = media.map((item, i) => { const classes = ['media-modal__button']; if (i === index) { classes.push('media-modal__button--active'); } return (<li className='media-modal__page-dot' key={i}><button tabIndex='0' className={classes.join(' ')} onClick={this.handleChangeIndex} data-index={i}>{i + 1}</button></li>); }); } const content = media.map((image) => { const width = image.getIn(['meta', 'original', 'width']) || null; const height = image.getIn(['meta', 'original', 'height']) || null; if (image.get('type') === 'image') { return ( <ImageLoader previewSrc={image.get('preview_url')} src={image.get('url')} width={width} height={height} alt={image.get('description')} key={image.get('url')} onClick={this.toggleNavigation} /> ); } else if (image.get('type') === 'gifv') { return ( <ExtendedVideoPlayer src={image.get('url')} muted controls={false} width={width} height={height} key={image.get('preview_url')} alt={image.get('description')} onClick={this.toggleNavigation} /> ); } return null; }).toArray(); // you can't use 100vh, because the viewport height is taller // than the visible part of the document in some mobile // browsers when it's address bar is visible. // https://developers.google.com/web/updates/2016/12/url-bar-resizing const swipeableViewsStyle = { width: '100%', height: '100%', }; const containerStyle = { alignItems: 'center', // center vertically }; const navigationClassName = classNames('media-modal__navigation', { 'media-modal__navigation--hidden': navigationHidden, }); return ( <div className='modal-root__modal media-modal'> <div className='media-modal__closer' role='presentation' onClick={onClose} > <ReactSwipeableViews style={swipeableViewsStyle} containerStyle={containerStyle} onChangeIndex={this.handleSwipe} onSwitching={this.handleSwitching} index={index} > {content} </ReactSwipeableViews> </div> <div className={navigationClassName}> <IconButton className='media-modal__close' title={intl.formatMessage(messages.close)} icon='times' onClick={onClose} size={40} /> {leftNav} {rightNav} <ul className='media-modal__pagination'> {pagination} </ul> </div> </div> ); } }