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-rw-r--r--app/javascript/flavours/glitch/features/account_gallery/components/media_item.js40
-rw-r--r--app/javascript/flavours/glitch/features/status/components/card.js42
-rw-r--r--app/javascript/flavours/glitch/features/video/index.js41
3 files changed, 28 insertions, 95 deletions
diff --git a/app/javascript/flavours/glitch/features/account_gallery/components/media_item.js b/app/javascript/flavours/glitch/features/account_gallery/components/media_item.js
index f1cb3f9e4..b88f23aa4 100644
--- a/app/javascript/flavours/glitch/features/account_gallery/components/media_item.js
+++ b/app/javascript/flavours/glitch/features/account_gallery/components/media_item.js
@@ -1,7 +1,7 @@
-import { decode } from 'blurhash';
+import Blurhash from 'flavours/glitch/components/blurhash';
 import classNames from 'classnames';
 import Icon from 'flavours/glitch/components/icon';
-import { autoPlayGif, displayMedia } from 'flavours/glitch/util/initial_state';
+import { autoPlayGif, displayMedia, useBlurhash } from 'flavours/glitch/util/initial_state';
 import { isIOS } from 'flavours/glitch/util/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 });
   }
@@ -149,7 +121,13 @@ 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 : icon}
         </a>
       </div>
diff --git a/app/javascript/flavours/glitch/features/status/components/card.js b/app/javascript/flavours/glitch/features/status/components/card.js
index ab6398e1a..14abe9838 100644
--- a/app/javascript/flavours/glitch/features/status/components/card.js
+++ b/app/javascript/flavours/glitch/features/status/components/card.js
@@ -8,7 +8,7 @@ import classnames from 'classnames';
 import { decode as decodeIDNA } from 'flavours/glitch/util/idna';
 import Icon from 'flavours/glitch/components/icon';
 import { useBlurhash } from 'flavours/glitch/util/initial_state';
-import { decode } from 'blurhash';
+import Blurhash from 'flavours/glitch/components/blurhash';
 import { debounce } from 'lodash';
 
 const getHostname = url => {
@@ -85,38 +85,12 @@ 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;
 
@@ -174,10 +148,6 @@ export default class Card extends React.PureComponent {
     }
   }
 
-  setCanvasRef = c => {
-    this.canvas = c;
-  }
-
   handleImageLoad = () => {
     this.setState({ previewLoaded: true });
   }
@@ -230,7 +200,15 @@ 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/flavours/glitch/features/video/index.js b/app/javascript/flavours/glitch/features/video/index.js
index c7cb5bc43..976cdefc0 100644
--- a/app/javascript/flavours/glitch/features/video/index.js
+++ b/app/javascript/flavours/glitch/features/video/index.js
@@ -7,7 +7,7 @@ import classNames from 'classnames';
 import { isFullscreen, requestFullscreen, exitFullscreen } from 'flavours/glitch/util/fullscreen';
 import { displayMedia, useBlurhash } from 'flavours/glitch/util/initial_state';
 import Icon from 'flavours/glitch/components/icon';
-import { decode } from 'blurhash';
+import Blurhash from 'flavours/glitch/components/blurhash';
 
 const messages = defineMessages({
   play: { id: 'video.play', defaultMessage: 'Play' },
@@ -179,14 +179,6 @@ class Video extends React.PureComponent {
     this.volume = c;
   }
 
-  setCanvasRef = c => {
-    this.canvas = c;
-
-    if (c && this.props.blurhash) {
-      this._decode();
-    }
-  }
-
   handleMouseDownRoot = e => {
     e.preventDefault();
     e.stopPropagation();
@@ -305,10 +297,6 @@ class Video extends React.PureComponent {
     document.addEventListener('MSFullscreenChange', this.handleFullscreenChange, true);
 
     window.addEventListener('resize', this.handleResize, { passive: true });
-
-    if (this.props.blurhash) {
-      this._decode();
-    }
   }
 
   componentWillUnmount () {
@@ -330,23 +318,6 @@ class Video extends React.PureComponent {
     if (this.video && this.state.revealed && this.props.preventPlayback && !prevProps.preventPlayback) {
       this.video.pause();
     }
-    if (prevProps.blurhash !== this.props.blurhash && this.props.blurhash) {
-      this._decode();
-    }
-  }
-
-  _decode () {
-    if (!this.canvas || !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(() => {
@@ -440,7 +411,7 @@ class Video extends React.PureComponent {
   }
 
   render () {
-    const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, letterbox, fullwidth, detailed, sensitive, link, editable } = this.props;
+    const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, letterbox, fullwidth, 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 = {};
@@ -485,7 +456,13 @@ class Video extends React.PureComponent {
         onMouseDown={this.handleMouseDownRoot}
         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}