Add blurhash (#10630)
* Add blurhash * Use fallback color for spoiler when blurhash missing * Federate the blurhash and accept it as long as it's at most 5x5 * Display unknown media attachments as blurhash placeholders * Improve style of embed actions and spoiler button * Change blurhash resolution from 3x3 to 4x4 * Improve dependency definitions * Fix code style issues
This commit is contained in:
Eugen Rochko
GitHub
parent
c008911249
commit
fba96c808d
22 changed files with 234 additions and 60 deletions
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@ -7,6 +7,7 @@ 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, displayMedia } from '../initial_state';
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import { decode } from 'blurhash';
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const messages = defineMessages({
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toggle_visible: { id: 'media_gallery.toggle_visible', defaultMessage: 'Toggle visibility' },
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@ -21,6 +22,7 @@ class Item extends React.PureComponent {
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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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};
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static defaultProps = {
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@ -29,6 +31,10 @@ class Item extends React.PureComponent {
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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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@ -62,8 +68,40 @@ class Item extends React.PureComponent {
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e.stopPropagation();
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}
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componentDidMount () {
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if (this.props.attachment.get('blurhash')) {
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this._decode();
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}
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}
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componentDidUpdate (prevProps) {
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if (prevProps.attachment.get('blurhash') !== this.props.attachment.get('blurhash') && this.props.attachment.get('blurhash')) {
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this._decode();
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}
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}
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_decode () {
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const hash = this.props.attachment.get('blurhash');
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const pixels = decode(hash, 32, 32);
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if (pixels) {
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const ctx = this.canvas.getContext('2d');
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const imageData = new ImageData(pixels, 32, 32);
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ctx.putImageData(imageData, 0, 0);
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}
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}
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setCanvasRef = c => {
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this.canvas = c;
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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 } = this.props;
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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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@ -116,12 +154,20 @@ class Item extends React.PureComponent {
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let thumbnail = '';
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if (attachment.get('type') === 'image') {
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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')} target='_blank' style={{ cursor: 'pointer' }} >
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<canvas width={32} height={32} ref={this.setCanvasRef} className='media-gallery__preview' />
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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 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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@ -147,6 +193,7 @@ class Item extends React.PureComponent {
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alt={attachment.get('description')}
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title={attachment.get('description')}
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style={{ objectPosition: `${x}% ${y}%` }}
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onLoad={this.handleImageLoad}
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/>
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</a>
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);
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@ -176,7 +223,8 @@ class Item extends React.PureComponent {
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return (
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<div className={classNames('media-gallery__item', { standalone })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
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{thumbnail}
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<canvas width={32} height={32} ref={this.setCanvasRef} className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': visible && this.state.loaded })} />
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{visible && thumbnail}
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</div>
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);
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}
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@ -225,6 +273,7 @@ class MediaGallery extends React.PureComponent {
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if (node /*&& this.isStandaloneEligible()*/) {
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// offsetWidth triggers a layout, so only calculate when we need to
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if (this.props.cacheWidth) this.props.cacheWidth(node.offsetWidth);
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this.setState({
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width: node.offsetWidth,
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});
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@ -242,7 +291,7 @@ class MediaGallery extends React.PureComponent {
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const width = this.state.width || defaultWidth;
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let children;
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let children, spoilerButton;
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const style = {};
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@ -256,35 +305,28 @@ class MediaGallery extends React.PureComponent {
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style.height = height;
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}
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if (!visible) {
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let warning;
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const size = media.take(4).size;
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if (sensitive) {
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warning = <FormattedMessage id='status.sensitive_warning' defaultMessage='Sensitive content' />;
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} else {
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warning = <FormattedMessage id='status.media_hidden' defaultMessage='Media hidden' />;
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}
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if (this.isStandaloneEligible()) {
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children = <Item standalone 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')} onClick={this.handleClick} attachment={attachment} index={i} size={size} displayWidth={width} visible={visible} />);
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}
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children = (
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<button type='button' className='media-spoiler' onClick={this.handleOpen} style={style} ref={this.handleRef}>
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<span className='media-spoiler__warning'>{warning}</span>
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<span className='media-spoiler__trigger'><FormattedMessage id='status.sensitive_toggle' defaultMessage='Click to view' /></span>
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if (visible) {
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spoilerButton = <IconButton title={intl.formatMessage(messages.toggle_visible)} icon={visible ? 'eye' : '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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} else {
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const size = media.take(4).size;
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if (this.isStandaloneEligible()) {
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children = <Item standalone onClick={this.handleClick} attachment={media.get(0)} displayWidth={width} />;
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} else {
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children = media.take(4).map((attachment, i) => <Item key={attachment.get('id')} onClick={this.handleClick} attachment={attachment} index={i} size={size} displayWidth={width} />);
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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--visible': visible })}>
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<IconButton title={intl.formatMessage(messages.toggle_visible)} icon={visible ? 'eye' : 'eye-slash'} overlay onClick={this.handleOpen} />
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<div className={classNames('spoiler-button', { 'spoiler-button--minified': visible })}>
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{spoilerButton}
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</div>
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{children}
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