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[Glitch] Replace repetitive blurhash code with component (#14267)

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Port 61c07c3731 to glitch-soc

Signed-off-by: Thibaut Girka <thib@sitedethib.com>
This commit is contained in:
Sasha Sorokin
2020-07-09 18:01:30 +07:00
committed by Thibaut Girka
parent 5054462759
commit 042c32ea3b
5 changed files with 102 additions and 128 deletions
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46
app/javascript/flavours/glitch/components/media_gallery.js
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@ -7,8 +7,8 @@ import { defineMessages, injectIntl, FormattedMessage } from 'react-intl';
import { isIOS } from 'flavours/glitch/util/is_mobile';
import classNames from 'classnames';
import { autoPlayGif, displayMedia, useBlurhash } from 'flavours/glitch/util/initial_state';
import { decode } from 'blurhash';
import { debounce } from 'lodash';
import Blurhash from 'flavours/glitch/components/blurhash';
const messages = defineMessages({
hidden: {
@ -94,36 +94,6 @@ class Item extends React.PureComponent {
e.stopPropagation();
}
componentDidMount () {
if (this.props.attachment.get('blurhash')) {
this._decode();
}
}
componentDidUpdate (prevProps) {
if (prevProps.attachment.get('blurhash') !== this.props.attachment.get('blurhash') && this.props.attachment.get('blurhash')) {
this._decode();
}
}
_decode () {
if (!useBlurhash) return;
const hash = this.props.attachment.get('blurhash');
const pixels = decode(hash, 32, 32);
if (pixels) {
const ctx = this.canvas.getContext('2d');
const imageData = new ImageData(pixels, 32, 32);
ctx.putImageData(imageData, 0, 0);
}
}
setCanvasRef = c => {
this.canvas = c;
}
handleImageLoad = () => {
this.setState({ loaded: true });
}
@ -186,7 +156,11 @@ class Item extends React.PureComponent {
return (
<div className={classNames('media-gallery__item', { standalone })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
<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'>
<canvas width={32} height={32} ref={this.setCanvasRef} className='media-gallery__preview' />
<Blurhash
hash={attachment.get('blurhash')}
className='media-gallery__preview'
dummy={!useBlurhash}
/>
</a>
</div>
);
@ -253,7 +227,13 @@ class Item extends React.PureComponent {
return (
<div className={classNames('media-gallery__item', { standalone, letterbox })} key={attachment.get('id')} style={{ left: left, top: top, right: right, bottom: bottom, width: `${width}%`, height: `${height}%` }}>
<canvas width={32} height={32} ref={this.setCanvasRef} className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': visible && this.state.loaded })} />
<Blurhash
hash={attachment.get('blurhash')}
dummy={!useBlurhash}
className={classNames('media-gallery__preview', {
'media-gallery__preview--hidden': visible && this.state.loaded,
})}
/>
{visible && thumbnail}
</div>
);