From 3f143606faa6181ff2745b6bd29ac8ea075088bf Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Thu, 2 May 2019 08:34:32 +0200
Subject: [PATCH] Change account gallery in web UI (#10667)

- 3 items per row instead of 2
- Use blurhash for previews
- Animate/hover-to-play GIFs and videos
- Open media modal instead of opening status
- Allow opening status instead with ctrl+click and open in new tab
---
 .../mastodon/components/media_gallery.js      |   2 +-
 .../account_gallery/components/media_item.js  | 150 ++++++++++++++----
 .../features/account_gallery/index.js         |  73 +++++----
 .../styles/mastodon/components.scss           |  60 ++-----
 4 files changed, 170 insertions(+), 115 deletions(-)

diff --git a/app/javascript/mastodon/components/media_gallery.js b/app/javascript/mastodon/components/media_gallery.js
index f548296d06..7c1d3c3e98 100644
--- a/app/javascript/mastodon/components/media_gallery.js
+++ b/app/javascript/mastodon/components/media_gallery.js
@@ -157,7 +157,7 @@ class Item extends React.PureComponent {
     if (attachment.get('type') === 'unknown') {
       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')} target='_blank' style={{ cursor: 'pointer' }} >
+          <a className='media-gallery__item-thumbnail' href={attachment.get('remote_url')} target='_blank' style={{ cursor: 'pointer' }}>
             <canvas width={32} height={32} ref={this.setCanvasRef} className='media-gallery__preview' />
           </a>
         </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 80ac9d9ecb..8d462996ed 100644
--- a/app/javascript/mastodon/features/account_gallery/components/media_item.js
+++ b/app/javascript/mastodon/features/account_gallery/components/media_item.js
@@ -1,62 +1,142 @@
 import React from 'react';
+import PropTypes from 'prop-types';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import ImmutablePureComponent from 'react-immutable-pure-component';
-import Permalink from '../../../components/permalink';
-import { displayMedia } from '../../../initial_state';
-import Icon from 'mastodon/components/icon';
+import { autoPlayGif, displayMedia } from 'mastodon/initial_state';
+import classNames from 'classnames';
+import { decode } from 'blurhash';
+import { isIOS } from 'mastodon/is_mobile';
 
 export default class MediaItem extends ImmutablePureComponent {
 
   static propTypes = {
-    media: ImmutablePropTypes.map.isRequired,
+    attachment: ImmutablePropTypes.map.isRequired,
+    displayWidth: PropTypes.number.isRequired,
+    onOpenMedia: PropTypes.func.isRequired,
   };
 
   state = {
-    visible: displayMedia !== 'hide_all' && !this.props.media.getIn(['status', 'sensitive']) || displayMedia === 'show_all',
+    visible: displayMedia !== 'hide_all' && !this.props.attachment.getIn(['status', 'sensitive']) || displayMedia === 'show_all',
+    loaded: false,
   };
 
-  handleClick = () => {
-    if (!this.state.visible) {
-      this.setState({ visible: true });
-      return true;
+  componentDidMount () {
+    if (this.props.attachment.get('blurhash')) {
+      this._decode();
     }
+  }
 
-    return false;
+  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 });
+  }
+
+  handleMouseEnter = e => {
+    if (this.hoverToPlay()) {
+      e.target.play();
+    }
+  }
+
+  handleMouseLeave = e => {
+    if (this.hoverToPlay()) {
+      e.target.pause();
+      e.target.currentTime = 0;
+    }
+  }
+
+  hoverToPlay () {
+    return !autoPlayGif && ['gifv', 'video'].indexOf(this.props.attachment.get('type')) !== -1;
+  }
+
+  handleClick = e => {
+    if (e.button === 0 && !(e.ctrlKey || e.metaKey)) {
+      e.preventDefault();
+
+      if (this.state.visible) {
+        this.props.onOpenMedia(this.props.attachment);
+      } else {
+        this.setState({ visible: true });
+      }
+    }
   }
 
   render () {
-    const { media } = this.props;
-    const { visible } = this.state;
-    const status = media.get('status');
-    const focusX = media.getIn(['meta', 'focus', 'x']);
-    const focusY = media.getIn(['meta', 'focus', 'y']);
-    const x = ((focusX /  2) + .5) * 100;
-    const y = ((focusY / -2) + .5) * 100;
-    const style = {};
+    const { attachment, displayWidth } = this.props;
+    const { visible, loaded } = this.state;
 
-    let label, icon;
+    const width  = `${Math.floor((displayWidth - 4) / 3) - 4}px`;
+    const height = width;
+    const status = attachment.get('status');
 
-    if (media.get('type') === 'gifv') {
-      label = <span className='media-gallery__gifv__label'>GIF</span>;
-    }
+    let thumbnail = '';
 
-    if (visible) {
-      style.backgroundImage    = `url(${media.get('preview_url')})`;
-      style.backgroundPosition = `${x}% ${y}%`;
-    } else {
-      icon = (
-        <span className='account-gallery__item__icons'>
-          <Icon id='eye-slash' />
-        </span>
+    if (attachment.get('type') === 'unknown') {
+      // Skip
+    } else if (attachment.get('type') === 'image') {
+      const focusX = attachment.getIn(['meta', 'focus', 'x']) || 0;
+      const focusY = attachment.getIn(['meta', 'focus', 'y']) || 0;
+      const x      = ((focusX /  2) + .5) * 100;
+      const y      = ((focusY / -2) + .5) * 100;
+
+      thumbnail = (
+        <img
+          src={attachment.get('preview_url')}
+          alt={attachment.get('description')}
+          title={attachment.get('description')}
+          style={{ objectPosition: `${x}% ${y}%` }}
+          onLoad={this.handleImageLoad}
+        />
+      );
+    } else if (['gifv', 'video'].indexOf(attachment.get('type')) !== -1) {
+      const autoPlay = !isIOS() && autoPlayGif;
+
+      thumbnail = (
+        <div className={classNames('media-gallery__gifv', { autoplay: autoPlay })}>
+          <video
+            className='media-gallery__item-gifv-thumbnail'
+            aria-label={attachment.get('description')}
+            title={attachment.get('description')}
+            role='application'
+            src={attachment.get('url')}
+            onMouseEnter={this.handleMouseEnter}
+            onMouseLeave={this.handleMouseLeave}
+            autoPlay={autoPlay}
+            loop
+            muted
+          />
+
+          <span className='media-gallery__gifv__label'>GIF</span>
+        </div>
       );
     }
 
     return (
-      <div className='account-gallery__item'>
-        <Permalink to={`/statuses/${status.get('id')}`} href={status.get('url')} style={style} onInterceptClick={this.handleClick}>
-          {icon}
-          {label}
-        </Permalink>
+      <div className='account-gallery__item' style={{ width, height }}>
+        <a className='media-gallery__item-thumbnail' href={status.get('url')} target='_blank' style={{ cursor: 'pointer' }} onClick={this.handleClick}>
+          <canvas width={32} height={32} ref={this.setCanvasRef} className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': visible && loaded })} />
+          {visible && thumbnail}
+        </a>
       </div>
     );
   }
diff --git a/app/javascript/mastodon/features/account_gallery/index.js b/app/javascript/mastodon/features/account_gallery/index.js
index 73be58d6a3..8766473fe2 100644
--- a/app/javascript/mastodon/features/account_gallery/index.js
+++ b/app/javascript/mastodon/features/account_gallery/index.js
@@ -2,24 +2,25 @@ import React from 'react';
 import { connect } from 'react-redux';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
-import { fetchAccount } from '../../actions/accounts';
+import { fetchAccount } from 'mastodon/actions/accounts';
 import { expandAccountMediaTimeline } from '../../actions/timelines';
-import LoadingIndicator from '../../components/loading_indicator';
+import LoadingIndicator from 'mastodon/components/loading_indicator';
 import Column from '../ui/components/column';
-import ColumnBackButton from '../../components/column_back_button';
+import ColumnBackButton from 'mastodon/components/column_back_button';
 import ImmutablePureComponent from 'react-immutable-pure-component';
-import { getAccountGallery } from '../../selectors';
+import { getAccountGallery } from 'mastodon/selectors';
 import MediaItem from './components/media_item';
 import HeaderContainer from '../account_timeline/containers/header_container';
 import { ScrollContainer } from 'react-router-scroll-4';
-import LoadMore from '../../components/load_more';
+import LoadMore from 'mastodon/components/load_more';
 import MissingIndicator from 'mastodon/components/missing_indicator';
+import { openModal } from 'mastodon/actions/modal';
 
 const mapStateToProps = (state, props) => ({
   isAccount: !!state.getIn(['accounts', props.params.accountId]),
-  medias: getAccountGallery(state, props.params.accountId),
+  attachments: getAccountGallery(state, props.params.accountId),
   isLoading: state.getIn(['timelines', `account:${props.params.accountId}:media`, 'isLoading']),
-  hasMore:   state.getIn(['timelines', `account:${props.params.accountId}:media`, 'hasMore']),
+  hasMore: state.getIn(['timelines', `account:${props.params.accountId}:media`, 'hasMore']),
 });
 
 class LoadMoreMedia extends ImmutablePureComponent {
@@ -51,12 +52,16 @@ class AccountGallery extends ImmutablePureComponent {
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
-    medias: ImmutablePropTypes.list.isRequired,
+    attachments: ImmutablePropTypes.list.isRequired,
     isLoading: PropTypes.bool,
     hasMore: PropTypes.bool,
     isAccount: PropTypes.bool,
   };
 
+  state = {
+    width: 323,
+  };
+
   componentDidMount () {
     this.props.dispatch(fetchAccount(this.props.params.accountId));
     this.props.dispatch(expandAccountMediaTimeline(this.props.params.accountId));
@@ -71,11 +76,11 @@ class AccountGallery extends ImmutablePureComponent {
 
   handleScrollToBottom = () => {
     if (this.props.hasMore) {
-      this.handleLoadMore(this.props.medias.size > 0 ? this.props.medias.last().getIn(['status', 'id']) : undefined);
+      this.handleLoadMore(this.props.attachments.size > 0 ? this.props.attachments.last().getIn(['status', 'id']) : undefined);
     }
   }
 
-  handleScroll = (e) => {
+  handleScroll = e => {
     const { scrollTop, scrollHeight, clientHeight } = e.target;
     const offset = scrollHeight - scrollTop - clientHeight;
 
@@ -88,13 +93,31 @@ class AccountGallery extends ImmutablePureComponent {
     this.props.dispatch(expandAccountMediaTimeline(this.props.params.accountId, { maxId }));
   };
 
-  handleLoadOlder = (e) => {
+  handleLoadOlder = e => {
     e.preventDefault();
     this.handleScrollToBottom();
   }
 
+  handleOpenMedia = attachment => {
+    if (attachment.get('type') === 'video') {
+      this.props.dispatch(openModal('VIDEO', { media: attachment }));
+    } else {
+      const media = attachment.getIn(['status', 'media_attachments']);
+      const index = media.findIndex(x => x.get('id') === attachment.get('id'));
+
+      this.props.dispatch(openModal('MEDIA', { media, index }));
+    }
+  }
+
+  handleRef = c => {
+    if (c) {
+      this.setState({ width: c.offsetWidth });
+    }
+  }
+
   render () {
-    const { medias, shouldUpdateScroll, isLoading, hasMore, isAccount } = this.props;
+    const { attachments, shouldUpdateScroll, isLoading, hasMore, isAccount } = this.props;
+    const { width } = this.state;
 
     if (!isAccount) {
       return (
@@ -104,9 +127,7 @@ class AccountGallery extends ImmutablePureComponent {
       );
     }
 
-    let loadOlder = null;
-
-    if (!medias && isLoading) {
+    if (!attachments && isLoading) {
       return (
         <Column>
           <LoadingIndicator />
@@ -114,7 +135,9 @@ class AccountGallery extends ImmutablePureComponent {
       );
     }
 
-    if (hasMore && !(isLoading && medias.size === 0)) {
+    let loadOlder = null;
+
+    if (hasMore && !(isLoading && attachments.size === 0)) {
       loadOlder = <LoadMore visible={!isLoading} onClick={this.handleLoadOlder} />;
     }
 
@@ -126,23 +149,17 @@ class AccountGallery extends ImmutablePureComponent {
           <div className='scrollable scrollable--flex' onScroll={this.handleScroll}>
             <HeaderContainer accountId={this.props.params.accountId} />
 
-            <div role='feed' className='account-gallery__container'>
-              {medias.map((media, index) => media === null ? (
-                <LoadMoreMedia
-                  key={'more:' + medias.getIn(index + 1, 'id')}
-                  maxId={index > 0 ? medias.getIn(index - 1, 'id') : null}
-                  onLoadMore={this.handleLoadMore}
-                />
+            <div role='feed' className='account-gallery__container' ref={this.handleRef}>
+              {attachments.map((attachment, index) => attachment === null ? (
+                <LoadMoreMedia key={'more:' + attachments.getIn(index + 1, 'id')} maxId={index > 0 ? attachments.getIn(index - 1, 'id') : null} onLoadMore={this.handleLoadMore} />
               ) : (
-                <MediaItem
-                  key={media.get('id')}
-                  media={media}
-                />
+                <MediaItem key={attachment.get('id')} attachment={attachment} displayWidth={width} onOpenMedia={this.handleOpenMedia} />
               ))}
+
               {loadOlder}
             </div>
 
-            {isLoading && medias.size === 0 && (
+            {isLoading && attachments.size === 0 && (
               <div className='scrollable__append'>
                 <LoadingIndicator />
               </div>
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 48970f8bd7..0e942d234e 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -4233,6 +4233,7 @@ a.status-card.compact:hover {
   pointer-events: none;
   opacity: 0.9;
   transition: opacity 0.1s ease;
+  line-height: 18px;
 }
 
 .media-gallery__gifv {
@@ -4762,62 +4763,19 @@ a.status-card.compact:hover {
 
 .account-gallery__container {
   display: flex;
-  justify-content: center;
   flex-wrap: wrap;
-  padding: 2px;
+  justify-content: center;
+  padding: 4px 2px;
 }
 
 .account-gallery__item {
-  flex-grow: 1;
-  width: 50%;
-  overflow: hidden;
+  border: none;
+  box-sizing: border-box;
+  display: block;
   position: relative;
-
-  &::before {
-    content: "";
-    display: block;
-    padding-top: 100%;
-  }
-
-  a {
-    display: block;
-    width: calc(100% - 4px);
-    height: calc(100% - 4px);
-    margin: 2px;
-    top: 0;
-    left: 0;
-    background-color: $base-overlay-background;
-    background-size: cover;
-    background-position: center;
-    position: absolute;
-    color: $darker-text-color;
-    text-decoration: none;
-    border-radius: 4px;
-
-    &:hover,
-    &:active,
-    &:focus {
-      outline: 0;
-      color: $secondary-text-color;
-
-      &::before {
-        content: "";
-        display: block;
-        width: 100%;
-        height: 100%;
-        background: rgba($base-overlay-background, 0.3);
-        border-radius: 4px;
-      }
-    }
-  }
-
-  &__icons {
-    position: absolute;
-    top: 50%;
-    left: 50%;
-    transform: translate(-50%, -50%);
-    font-size: 24px;
-  }
+  border-radius: 4px;
+  overflow: hidden;
+  margin: 2px;
 }
 
 .notification__filter-bar,