app/javascript/flavours/glitch/features/ui/components/media_modal.jsx
import PropTypes from 'prop-types';
import { defineMessages, injectIntl } from 'react-intl';
import classNames from 'classnames';
import ImmutablePropTypes from 'react-immutable-proptypes';
import ImmutablePureComponent from 'react-immutable-pure-component';
import ReactSwipeableViews from 'react-swipeable-views';
import ChevronLeftIcon from '@/material-icons/400-24px/chevron_left.svg?react';
import ChevronRightIcon from '@/material-icons/400-24px/chevron_right.svg?react';
import CloseIcon from '@/material-icons/400-24px/close.svg?react';
import FitScreenIcon from '@/material-icons/400-24px/fit_screen.svg?react';
import ActualSizeIcon from '@/svg-icons/actual_size.svg?react';
import { getAverageFromBlurhash } from 'flavours/glitch/blurhash';
import { GIFV } from 'flavours/glitch/components/gifv';
import { Icon } from 'flavours/glitch/components/icon';
import { IconButton } from 'flavours/glitch/components/icon_button';
import Footer from 'flavours/glitch/features/picture_in_picture/components/footer';
import Video from 'flavours/glitch/features/video';
import { disableSwiping } from 'flavours/glitch/initial_state';
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' },
zoomIn: { id: 'lightbox.zoom_in', defaultMessage: 'Zoom to actual size' },
zoomOut: { id: 'lightbox.zoom_out', defaultMessage: 'Zoom to fit' },
});
class MediaModal extends ImmutablePureComponent {
static propTypes = {
media: ImmutablePropTypes.list.isRequired,
statusId: PropTypes.string,
lang: PropTypes.string,
index: PropTypes.number.isRequired,
onClose: PropTypes.func.isRequired,
intl: PropTypes.object.isRequired,
onChangeBackgroundColor: PropTypes.func.isRequired,
currentTime: PropTypes.number,
autoPlay: PropTypes.bool,
volume: PropTypes.number,
};
state = {
index: null,
navigationHidden: false,
zoomedIn: false,
};
handleZoomClick = () => {
this.setState(prevState => ({
zoomedIn: !prevState.zoomedIn,
}));
};
handleSwipe = (index) => {
this.setState({
index: index % this.props.media.size,
zoomedIn: false,
});
};
handleTransitionEnd = () => {
this.setState({
zoomedIn: false,
});
};
handleNextClick = () => {
this.setState({
index: (this.getIndex() + 1) % this.props.media.size,
zoomedIn: false,
});
};
handlePrevClick = () => {
this.setState({
index: (this.props.media.size + this.getIndex() - 1) % this.props.media.size,
zoomedIn: false,
});
};
handleChangeIndex = (e) => {
const index = Number(e.currentTarget.getAttribute('data-index'));
this.setState({
index: index % this.props.media.size,
zoomedIn: false,
});
};
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);
this._sendBackgroundColor();
}
componentDidUpdate (prevProps, prevState) {
if (prevState.index !== this.state.index) {
this._sendBackgroundColor();
}
}
_sendBackgroundColor () {
const { media, onChangeBackgroundColor } = this.props;
const index = this.getIndex();
const blurhash = media.getIn([index, 'blurhash']);
if (blurhash) {
const backgroundColor = getAverageFromBlurhash(blurhash);
onChangeBackgroundColor(backgroundColor);
}
}
componentWillUnmount () {
window.removeEventListener('keydown', this.handleKeyDown);
this.props.onChangeBackgroundColor(null);
}
getIndex () {
return this.state.index !== null ? this.state.index : this.props.index;
}
handleToggleNavigation = () => {
this.setState(prevState => ({
navigationHidden: !prevState.navigationHidden,
}));
};
setRef = c => {
this.setState({
viewportWidth: c?.clientWidth,
viewportHeight: c?.clientHeight,
});
};
render () {
const { media, statusId, lang, intl, onClose } = this.props;
const { navigationHidden, zoomedIn, viewportWidth, viewportHeight } = this.state;
const index = this.getIndex();
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' icon={ChevronLeftIcon} /></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' icon={ChevronRightIcon} /></button>;
const content = media.map((image) => {
const width = image.getIn(['meta', 'original', 'width']) || null;
const height = image.getIn(['meta', 'original', 'height']) || null;
const description = image.getIn(['translation', 'description']) || image.get('description');
if (image.get('type') === 'image') {
return (
<ImageLoader
previewSrc={image.get('preview_url')}
src={image.get('url')}
width={width}
height={height}
alt={description}
lang={lang}
key={image.get('url')}
onClick={this.handleToggleNavigation}
zoomedIn={zoomedIn}
/>
);
} else if (image.get('type') === 'video') {
const { currentTime, autoPlay, volume } = 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')}
frameRate={image.getIn(['meta', 'original', 'frame_rate'])}
currentTime={currentTime || 0}
autoPlay={autoPlay || false}
volume={volume || 1}
onCloseVideo={onClose}
detailed
alt={description}
lang={lang}
key={image.get('url')}
/>
);
} else if (image.get('type') === 'gifv') {
return (
<GIFV
src={image.get('url')}
width={width}
height={height}
key={image.get('url')}
alt={description}
lang={lang}
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,
});
let pagination;
if (media.size > 1) {
pagination = media.map((item, i) => (
<button key={i} className={classNames('media-modal__page-dot', { active: i === index })} data-index={i} onClick={this.handleChangeIndex}>
{i + 1}
</button>
));
}
const currentMedia = media.get(index);
const zoomable = currentMedia.get('type') === 'image' && (currentMedia.getIn(['meta', 'original', 'width']) > viewportWidth || currentMedia.getIn(['meta', 'original', 'height']) > viewportHeight);
return (
<div className='modal-root__modal media-modal' ref={this.setRef}>
<div className='media-modal__closer' role='presentation' onClick={onClose}>
<ReactSwipeableViews
style={swipeableViewsStyle}
containerStyle={containerStyle}
onChangeIndex={this.handleSwipe}
onTransitionEnd={this.handleTransitionEnd}
index={index}
disabled={disableSwiping}
>
{content}
</ReactSwipeableViews>
</div>
<div className={navigationClassName}>
<div className='media-modal__buttons'>
{zoomable && <IconButton title={intl.formatMessage(zoomedIn ? messages.zoomOut : messages.zoomIn)} iconComponent={zoomedIn ? FitScreenIcon : ActualSizeIcon} onClick={this.handleZoomClick} />}
<IconButton title={intl.formatMessage(messages.close)} icon='times' iconComponent={CloseIcon} onClick={onClose} />
</div>
{leftNav}
{rightNav}
<div className='media-modal__overlay'>
{pagination && <ul className='media-modal__pagination'>{pagination}</ul>}
{statusId && <Footer statusId={statusId} withOpenButton onClose={onClose} />}
</div>
</div>
</div>
);
}
}
export default injectIntl(MediaModal);