61c07c3731
This commit replaces all unnecessarily repeated code for decoding and embedding blurhash canvases with separate component - <Blurhash>. Under the hood Blurhash component will use effect dependent on its props. This gives a few benefits: it will only be re-rendered whenever the hash or width/height/dummy props update, and will not render if canvas won't get to the final DOM, because then effect won't fire, which prevents weird bugs like #14257.
368 lines
11 KiB
JavaScript
368 lines
11 KiB
JavaScript
import React from 'react';
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import ImmutablePropTypes from 'react-immutable-proptypes';
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import PropTypes from 'prop-types';
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import { is } from 'immutable';
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import IconButton from './icon_button';
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import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
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import { isIOS } from '../is_mobile';
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import classNames from 'classnames';
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import { autoPlayGif, cropImages, displayMedia, useBlurhash } from '../initial_state';
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import { debounce } from 'lodash';
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import Blurhash from 'mastodon/components/blurhash';
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const messages = defineMessages({
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toggle_visible: { id: 'media_gallery.toggle_visible', defaultMessage: 'Hide {number, plural, one {image} other {images}}' },
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});
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class Item extends React.PureComponent {
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static propTypes = {
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attachment: ImmutablePropTypes.map.isRequired,
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standalone: PropTypes.bool,
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index: PropTypes.number.isRequired,
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size: PropTypes.number.isRequired,
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onClick: PropTypes.func.isRequired,
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displayWidth: PropTypes.number,
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visible: PropTypes.bool.isRequired,
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autoplay: PropTypes.bool,
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};
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static defaultProps = {
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standalone: false,
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index: 0,
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size: 1,
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};
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state = {
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loaded: false,
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};
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handleMouseEnter = (e) => {
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if (this.hoverToPlay()) {
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e.target.play();
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}
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}
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handleMouseLeave = (e) => {
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if (this.hoverToPlay()) {
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e.target.pause();
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e.target.currentTime = 0;
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}
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}
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getAutoPlay() {
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return this.props.autoplay || autoPlayGif;
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}
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hoverToPlay () {
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const { attachment } = this.props;
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return !this.getAutoPlay() && attachment.get('type') === 'gifv';
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}
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handleClick = (e) => {
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const { index, onClick } = this.props;
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if (e.button === 0 && !(e.ctrlKey || e.metaKey)) {
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if (this.hoverToPlay()) {
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e.target.pause();
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e.target.currentTime = 0;
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}
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e.preventDefault();
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onClick(index);
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}
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e.stopPropagation();
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}
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handleImageLoad = () => {
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this.setState({ loaded: true });
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}
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render () {
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const { attachment, index, size, standalone, displayWidth, visible } = this.props;
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let width = 50;
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let height = 100;
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let top = 'auto';
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let left = 'auto';
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let bottom = 'auto';
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let right = 'auto';
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if (size === 1) {
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width = 100;
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}
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if (size === 4 || (size === 3 && index > 0)) {
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height = 50;
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}
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if (size === 2) {
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if (index === 0) {
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right = '2px';
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} else {
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left = '2px';
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}
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} else if (size === 3) {
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if (index === 0) {
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right = '2px';
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} else if (index > 0) {
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left = '2px';
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}
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if (index === 1) {
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bottom = '2px';
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} else if (index > 1) {
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top = '2px';
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}
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} else if (size === 4) {
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if (index === 0 || index === 2) {
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right = '2px';
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}
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if (index === 1 || index === 3) {
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left = '2px';
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}
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if (index < 2) {
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bottom = '2px';
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} else {
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top = '2px';
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}
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}
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let thumbnail = '';
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if (attachment.get('type') === 'unknown') {
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return (
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<div className={classNames('media-gallery__item', { standalone })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
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<a className='media-gallery__item-thumbnail' href={attachment.get('remote_url') || attachment.get('url')} style={{ cursor: 'pointer' }} title={attachment.get('description')} target='_blank' rel='noopener noreferrer'>
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<Blurhash
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hash={attachment.get('blurhash')}
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className='media-gallery__preview'
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dummy={!useBlurhash}
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/>
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</a>
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</div>
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);
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} else if (attachment.get('type') === 'image') {
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const previewUrl = attachment.get('preview_url');
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const previewWidth = attachment.getIn(['meta', 'small', 'width']);
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const originalUrl = attachment.get('url');
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const originalWidth = attachment.getIn(['meta', 'original', 'width']);
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const hasSize = typeof originalWidth === 'number' && typeof previewWidth === 'number';
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const srcSet = hasSize ? `${originalUrl} ${originalWidth}w, ${previewUrl} ${previewWidth}w` : null;
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const sizes = hasSize && (displayWidth > 0) ? `${displayWidth * (width / 100)}px` : null;
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const focusX = attachment.getIn(['meta', 'focus', 'x']) || 0;
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const focusY = attachment.getIn(['meta', 'focus', 'y']) || 0;
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const x = ((focusX / 2) + .5) * 100;
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const y = ((focusY / -2) + .5) * 100;
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thumbnail = (
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<a
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className='media-gallery__item-thumbnail'
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href={attachment.get('remote_url') || originalUrl}
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onClick={this.handleClick}
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target='_blank'
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rel='noopener noreferrer'
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>
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<img
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src={previewUrl}
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srcSet={srcSet}
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sizes={sizes}
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alt={attachment.get('description')}
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title={attachment.get('description')}
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style={{ objectPosition: `${x}% ${y}%` }}
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onLoad={this.handleImageLoad}
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/>
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</a>
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);
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} else if (attachment.get('type') === 'gifv') {
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const autoPlay = !isIOS() && this.getAutoPlay();
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thumbnail = (
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<div className={classNames('media-gallery__gifv', { autoplay: autoPlay })}>
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<video
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className='media-gallery__item-gifv-thumbnail'
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aria-label={attachment.get('description')}
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title={attachment.get('description')}
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role='application'
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src={attachment.get('url')}
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onClick={this.handleClick}
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onMouseEnter={this.handleMouseEnter}
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onMouseLeave={this.handleMouseLeave}
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autoPlay={autoPlay}
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loop
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muted
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/>
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<span className='media-gallery__gifv__label'>GIF</span>
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</div>
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);
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}
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return (
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<div className={classNames('media-gallery__item', { standalone })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
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<Blurhash
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hash={attachment.get('blurhash')}
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dummy={!useBlurhash}
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className={classNames('media-gallery__preview', {
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'media-gallery__preview--hidden': visible && this.state.loaded,
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})}
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/>
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{visible && thumbnail}
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</div>
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);
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}
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}
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export default @injectIntl
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class MediaGallery extends React.PureComponent {
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static propTypes = {
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sensitive: PropTypes.bool,
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standalone: PropTypes.bool,
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media: ImmutablePropTypes.list.isRequired,
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size: PropTypes.object,
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height: PropTypes.number.isRequired,
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onOpenMedia: PropTypes.func.isRequired,
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intl: PropTypes.object.isRequired,
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defaultWidth: PropTypes.number,
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cacheWidth: PropTypes.func,
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visible: PropTypes.bool,
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autoplay: PropTypes.bool,
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onToggleVisibility: PropTypes.func,
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};
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static defaultProps = {
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standalone: false,
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};
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state = {
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visible: this.props.visible !== undefined ? this.props.visible : (displayMedia !== 'hide_all' && !this.props.sensitive || displayMedia === 'show_all'),
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width: this.props.defaultWidth,
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};
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componentDidMount () {
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window.addEventListener('resize', this.handleResize, { passive: true });
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}
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componentWillUnmount () {
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window.removeEventListener('resize', this.handleResize);
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}
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componentWillReceiveProps (nextProps) {
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if (!is(nextProps.media, this.props.media) && nextProps.visible === undefined) {
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this.setState({ visible: displayMedia !== 'hide_all' && !nextProps.sensitive || displayMedia === 'show_all' });
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} else if (!is(nextProps.visible, this.props.visible) && nextProps.visible !== undefined) {
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this.setState({ visible: nextProps.visible });
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}
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}
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handleResize = debounce(() => {
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if (this.node) {
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this._setDimensions();
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}
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}, 250, {
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trailing: true,
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});
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handleOpen = () => {
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if (this.props.onToggleVisibility) {
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this.props.onToggleVisibility();
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} else {
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this.setState({ visible: !this.state.visible });
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}
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}
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handleClick = (index) => {
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this.props.onOpenMedia(this.props.media, index);
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}
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handleRef = c => {
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this.node = c;
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if (this.node) {
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this._setDimensions();
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}
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}
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_setDimensions () {
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const width = this.node.offsetWidth;
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// offsetWidth triggers a layout, so only calculate when we need to
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if (this.props.cacheWidth) {
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this.props.cacheWidth(width);
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}
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this.setState({
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width: width,
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});
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}
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isFullSizeEligible() {
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const { media } = this.props;
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return media.size === 1 && media.getIn([0, 'meta', 'small', 'aspect']);
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}
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render () {
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const { media, intl, sensitive, height, defaultWidth, standalone, autoplay } = this.props;
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const { visible } = this.state;
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const width = this.state.width || defaultWidth;
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let children, spoilerButton;
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const style = {};
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if (this.isFullSizeEligible() && (standalone || !cropImages)) {
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if (width) {
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style.height = width / this.props.media.getIn([0, 'meta', 'small', 'aspect']);
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}
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} else if (width) {
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style.height = width / (16/9);
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} else {
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style.height = height;
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}
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const size = media.take(4).size;
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const uncached = media.every(attachment => attachment.get('type') === 'unknown');
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if (standalone && this.isFullSizeEligible()) {
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children = <Item standalone autoplay={autoplay} onClick={this.handleClick} attachment={media.get(0)} displayWidth={width} visible={visible} />;
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} else {
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children = media.take(4).map((attachment, i) => <Item key={attachment.get('id')} autoplay={autoplay} onClick={this.handleClick} attachment={attachment} index={i} size={size} displayWidth={width} visible={visible || uncached} />);
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}
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if (uncached) {
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spoilerButton = (
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<button type='button' disabled className='spoiler-button__overlay'>
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<span className='spoiler-button__overlay__label'><FormattedMessage id='status.uncached_media_warning' defaultMessage='Not available' /></span>
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</button>
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);
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} else if (visible) {
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spoilerButton = <IconButton title={intl.formatMessage(messages.toggle_visible, { number: size })} icon='eye-slash' overlay onClick={this.handleOpen} />;
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} else {
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spoilerButton = (
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<button type='button' onClick={this.handleOpen} className='spoiler-button__overlay'>
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<span className='spoiler-button__overlay__label'>{sensitive ? <FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' /> : <FormattedMessage id='status.media_hidden' defaultMessage='Media hidden' />}</span>
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</button>
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);
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}
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return (
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<div className='media-gallery' style={style} ref={this.handleRef}>
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<div className={classNames('spoiler-button', { 'spoiler-button--minified': visible && !uncached, 'spoiler-button--click-thru': uncached })}>
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{spoilerButton}
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</div>
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{children}
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</div>
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);
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}
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}
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