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import React from 'react';
import ReactSwipeableViews from 'react-swipeable-views';
import ImmutablePropTypes from 'react-immutable-proptypes';
import PropTypes from 'prop-types';
import Video from 'flavours/glitch/features/video';
import classNames from 'classnames';
import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
import IconButton from 'flavours/glitch/components/icon_button';
import ImmutablePureComponent from 'react-immutable-pure-component';
import ImageLoader from './image_loader';
import Icon from 'flavours/glitch/components/icon';
import GIFV from 'flavours/glitch/components/gifv';
const messages = defineMessages({
close: { id: 'lightbox.close', defaultMessage: 'Close' },
previous: { id: 'lightbox.previous', defaultMessage: 'Previous' },
next: { id: 'lightbox.next', defaultMessage: 'Next' },
});
export default @injectIntl
class MediaModal extends ImmutablePureComponent {
static contextTypes = {
router: PropTypes.object,
};
static propTypes = {
media: ImmutablePropTypes.list.isRequired,
status: ImmutablePropTypes.map,
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 });
}
handleKeyDown = (e) => {
switch(e.key) {
case 'ArrowLeft':
this.handlePrevClick();
e.preventDefault();
e.stopPropagation();
break;
case 'ArrowRight':
this.handleNextClick();
e.preventDefault();
e.stopPropagation();
break;
}
}
componentDidMount () {
window.addEventListener('keydown', this.handleKeyDown, false);
}
componentWillUnmount () {
window.removeEventListener('keydown', this.handleKeyDown);
}
getIndex () {
return this.state.index !== null ? this.state.index : this.props.index;
}
toggleNavigation = () => {
this.setState(prevState => ({
navigationHidden: !prevState.navigationHidden,
}));
};
handleStatusClick = e => {
if (e.button === 0 && !(e.ctrlKey || e.metaKey)) {
e.preventDefault();
this.context.router.history.push(`/statuses/${this.props.status.get('id')}`);
}
}
render () {
const { media, status, 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)}><Icon id='chevron-left' fixedWidth /></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)}><Icon id='chevron-right' fixedWidth /></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') === 'video') {
const { time } = this.props;
return (
<Video
preview={image.get('preview_url')}
blurhash={image.get('blurhash')}
src={image.get('url')}
width={image.get('width')}
height={image.get('height')}
startTime={time || 0}
onCloseVideo={onClose}
detailed
alt={image.get('description')}
key={image.get('url')}
/>
);
} else if (image.get('type') === 'gifv') {
return (
<GIFV
src={image.get('url')}
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}
{status && (
<div className={classNames('media-modal__meta', { 'media-modal__meta--shifted': media.size > 1 })}>
<a href={status.get('url')} onClick={this.handleStatusClick}><Icon id='comments' /> <FormattedMessage id='lightbox.view_context' defaultMessage='View context' /></a>
</div>
)}
<ul className='media-modal__pagination'>
{pagination}
</ul>
</div>
</div>
);
}
}
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