diff options
5 files changed, 102 insertions, 125 deletions
diff --git a/app/javascript/mastodon/components/blurhash.js b/app/javascript/mastodon/components/blurhash.js new file mode 100644 index 000000000..172f8c2f5 --- /dev/null +++ b/app/javascript/mastodon/components/blurhash.js @@ -0,0 +1,61 @@ +// @ts-check + +import { decode } from 'blurhash'; +import React, { useRef, useEffect } from 'react'; +import PropTypes from 'prop-types'; + +/** + * @typedef BlurhashPropsBase + * @property {string} hash Hash to render + * @property {number} width + * Width of the blurred region in pixels. Defaults to 32 + * @property {number} [height] + * Height of the blurred region in pixels. Defaults to width + * @property {boolean} [dummy] + * Whether dummy mode is enabled. If enabled, nothing is rendered + * and canvas left untouched + */ + +/** @typedef {JSX.IntrinsicElements['canvas'] & BlurhashPropsBase} BlurhashProps */ + +/** + * Component that is used to render blurred of blurhash string + * + * @param {BlurhashProps} param1 Props of the component + * @returns Canvas which will render blurred region element to embed + */ +function Blurhash({ + hash, + width = 32, + height = width, + dummy = false, + ...canvasProps +}) { + const canvasRef = /** @type {import('react').MutableRefObject<HTMLCanvasElement>} */ (useRef()); + + useEffect(() => { + const { current: canvas } = canvasRef; + canvas.width = canvas.width; // resets canvas + + if (dummy) return; + + const pixels = decode(hash, width, height); + const ctx = canvas.getContext('2d'); + const imageData = new ImageData(pixels, width, height); + + ctx.putImageData(imageData, 0, 0); + }, [dummy, hash, width, height]); + + return ( + <canvas {...canvasProps} ref={canvasRef} width={width} height={height} /> + ); +} + +Blurhash.propTypes = { + hash: PropTypes.string.isRequired, + width: PropTypes.number, + height: PropTypes.number, + dummy: PropTypes.bool, +}; + +export default React.memo(Blurhash); diff --git a/app/javascript/mastodon/components/media_gallery.js b/app/javascript/mastodon/components/media_gallery.js index 0ec866138..0a8f42585 100644 --- a/app/javascript/mastodon/components/media_gallery.js +++ b/app/javascript/mastodon/components/media_gallery.js @@ -7,8 +7,8 @@ import { defineMessages, injectIntl, FormattedMessage } from 'react-intl'; import { isIOS } from '../is_mobile'; import classNames from 'classnames'; import { autoPlayGif, cropImages, displayMedia, useBlurhash } from '../initial_state'; -import { decode } from 'blurhash'; import { debounce } from 'lodash'; +import Blurhash from 'mastodon/components/blurhash'; const messages = defineMessages({ toggle_visible: { id: 'media_gallery.toggle_visible', defaultMessage: 'Hide {number, plural, one {image} other {images}}' }, @@ -74,36 +74,6 @@ 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 }); } @@ -166,7 +136,11 @@ 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> ); @@ -232,7 +206,13 @@ 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}%` }}> - <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> ); diff --git a/app/javascript/mastodon/features/account_gallery/components/media_item.js b/app/javascript/mastodon/features/account_gallery/components/media_item.js index 617a45d16..9eb4ed0d3 100644 --- a/app/javascript/mastodon/features/account_gallery/components/media_item.js +++ b/app/javascript/mastodon/features/account_gallery/components/media_item.js @@ -1,7 +1,7 @@ -import { decode } from 'blurhash'; +import Blurhash from 'mastodon/components/blurhash'; import classNames from 'classnames'; import Icon from 'mastodon/components/icon'; -import { autoPlayGif, displayMedia } from 'mastodon/initial_state'; +import { autoPlayGif, displayMedia, useBlurhash } from 'mastodon/initial_state'; import { isIOS } from 'mastodon/is_mobile'; import PropTypes from 'prop-types'; import React from 'react'; @@ -21,34 +21,6 @@ export default class MediaItem extends ImmutablePureComponent { loaded: false, }; - 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 () { - 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 }); } @@ -152,7 +124,13 @@ export default class MediaItem extends ImmutablePureComponent { return ( <div className='account-gallery__item' style={{ width, height }}> <a className='media-gallery__item-thumbnail' href={status.get('url')} onClick={this.handleClick} title={title} target='_blank' rel='noopener noreferrer'> - <canvas width={32} height={32} ref={this.setCanvasRef} className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': visible && loaded })} /> + <Blurhash + hash={attachment.get('blurhash')} + className={classNames('media-gallery__preview', { + 'media-gallery__preview--hidden': visible && loaded, + })} + dummy={!useBlurhash} + /> {visible && thumbnail} {!visible && icon} </a> diff --git a/app/javascript/mastodon/features/status/components/card.js b/app/javascript/mastodon/features/status/components/card.js index 971682df8..90f9ae7ae 100644 --- a/app/javascript/mastodon/features/status/components/card.js +++ b/app/javascript/mastodon/features/status/components/card.js @@ -7,7 +7,7 @@ import punycode from 'punycode'; import classnames from 'classnames'; import Icon from 'mastodon/components/icon'; import { useBlurhash } from 'mastodon/initial_state'; -import { decode } from 'blurhash'; +import Blurhash from 'mastodon/components/blurhash'; import { debounce } from 'lodash'; const IDNA_PREFIX = 'xn--'; @@ -93,38 +93,12 @@ export default class Card extends React.PureComponent { componentDidMount () { window.addEventListener('resize', this.handleResize, { passive: true }); - - if (this.props.card && this.props.card.get('blurhash') && this.canvas) { - this._decode(); - } } componentWillUnmount () { window.removeEventListener('resize', this.handleResize); } - componentDidUpdate (prevProps) { - const { card } = this.props; - - if (card.get('blurhash') && (!prevProps.card || prevProps.card.get('blurhash') !== card.get('blurhash')) && this.canvas) { - this._decode(); - } - } - - _decode () { - if (!useBlurhash) return; - - const hash = this.props.card.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); - } - } - _setDimensions () { const width = this.node.offsetWidth; @@ -182,10 +156,6 @@ export default class Card extends React.PureComponent { } } - setCanvasRef = c => { - this.canvas = c; - } - handleImageLoad = () => { this.setState({ previewLoaded: true }); } @@ -238,7 +208,15 @@ export default class Card extends React.PureComponent { ); let embed = ''; - let canvas = <canvas width={32} height={32} ref={this.setCanvasRef} className={classnames('status-card__image-preview', { 'status-card__image-preview--hidden' : revealed && this.state.previewLoaded })} />; + let canvas = ( + <Blurhash + className={classnames('status-card__image-preview', { + 'status-card__image-preview--hidden': revealed && this.state.previewLoaded, + })} + hash={card.get('blurhash')} + dummy={!useBlurhash} + /> + ); let thumbnail = <img src={card.get('image')} alt='' style={{ width: horizontal ? width : null, height: horizontal ? height : null, visibility: revealed ? null : 'hidden' }} onLoad={this.handleImageLoad} className='status-card__image-image' />; let spoilerButton = ( <button type='button' onClick={this.handleReveal} className='spoiler-button__overlay'> diff --git a/app/javascript/mastodon/features/video/index.js b/app/javascript/mastodon/features/video/index.js index 135200a3d..fb12567f0 100644 --- a/app/javascript/mastodon/features/video/index.js +++ b/app/javascript/mastodon/features/video/index.js @@ -7,7 +7,7 @@ import classNames from 'classnames'; import { isFullscreen, requestFullscreen, exitFullscreen } from '../ui/util/fullscreen'; import { displayMedia, useBlurhash } from '../../initial_state'; import Icon from 'mastodon/components/icon'; -import { decode } from 'blurhash'; +import Blurhash from 'mastodon/components/blurhash'; const messages = defineMessages({ play: { id: 'video.play', defaultMessage: 'Play' }, @@ -169,10 +169,6 @@ class Video extends React.PureComponent { this.volume = c; } - setCanvasRef = c => { - this.canvas = c; - } - handleClickRoot = e => e.stopPropagation(); handlePlay = () => { @@ -289,10 +285,6 @@ class Video extends React.PureComponent { window.addEventListener('scroll', this.handleScroll); window.addEventListener('resize', this.handleResize, { passive: true }); - - if (this.props.blurhash) { - this._decode(); - } } componentWillUnmount () { @@ -315,24 +307,6 @@ class Video extends React.PureComponent { if (prevState.revealed && !this.state.revealed && this.video) { this.video.pause(); } - - if (prevProps.blurhash !== this.props.blurhash && this.props.blurhash) { - this._decode(); - } - } - - _decode () { - if (!useBlurhash) return; - - const hash = this.props.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); - } } handleResize = debounce(() => { @@ -438,7 +412,7 @@ class Video extends React.PureComponent { } render () { - const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, detailed, sensitive, link, editable } = this.props; + const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, detailed, sensitive, link, editable, blurhash } = this.props; const { containerWidth, currentTime, duration, volume, buffer, dragging, paused, fullscreen, hovered, muted, revealed } = this.state; const progress = (currentTime / duration) * 100; const playerStyle = {}; @@ -481,7 +455,13 @@ class Video extends React.PureComponent { onClick={this.handleClickRoot} tabIndex={0} > - <canvas width={32} height={32} ref={this.setCanvasRef} className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': revealed })} /> + <Blurhash + hash={blurhash} + className={classNames('media-gallery__preview', { + 'media-gallery__preview--hidden': revealed, + })} + dummy={!useBlurhash} + /> {(revealed || editable) && <video ref={this.setVideoRef} |