Responsively enforce 16:9 ratio on all media thumbnails in web UI (#6590)

* Responsively enforce 16:9 ratio on all media thumbnails in web UI

Also change video player behaviour to "contain" rather than
"cover" videos that don't fit the ratio, unlike images and GIFs,
it's expected that a video is shown fully.

* Fix spacing issues and remove floor

* Remove floor

app/javascript/mastodon/components/media_gallery.js

@@ -283,8 +283,9 @@ export default class MediaGallery extends React.PureComponent {
       if (width) {
         style.height = width / this.props.media.getIn([0, 'meta', 'small', 'aspect']);
       }
+    } else if (width) {
+      style.height = width / (16/9);
     } else {
-      // crop the image
       style.height = height;
     }
 
@@ -309,7 +310,7 @@ export default class MediaGallery extends React.PureComponent {
       if (this.isStandaloneEligible()) {
         children = <Item standalone onClick={this.handleClick} attachment={media.get(0)} />;
       } else {
-        children = media.take(4).map((attachment, i) => <Item key={attachment.get('id')} onClick={this.handleClick} attachment={attachment} index={i} size={size} containerWidth={width} containerHeight={height} />);
+        children = media.take(4).map((attachment, i) => <Item key={attachment.get('id')} onClick={this.handleClick} attachment={attachment} index={i} size={size} containerWidth={width} containerHeight={style.height} />);
       }
     }
 

app/javascript/mastodon/components/status.js

@@ -184,6 +184,7 @@ export default class Status extends ImmutablePureComponent {
                 src={video.get('url')}
                 width={239}
                 height={110}
+                inline
                 sensitive={status.get('sensitive')}
                 onOpenVideo={this.handleOpenVideo}
               />

app/javascript/mastodon/features/status/components/detailed_status.js

@@ -57,6 +57,7 @@ export default class DetailedStatus extends ImmutablePureComponent {
             src={video.get('url')}
             width={300}
             height={150}
+            inline
             onOpenVideo={this.handleOpenVideo}
             sensitive={status.get('sensitive')}
           />

app/javascript/mastodon/features/video/index.js

@@ -97,6 +97,7 @@ export default class Video extends React.PureComponent {
     onOpenVideo: PropTypes.func,
     onCloseVideo: PropTypes.func,
     detailed: PropTypes.bool,
+    inline: PropTypes.bool,
     intl: PropTypes.object.isRequired,
   };
 
@@ -105,6 +106,7 @@ export default class Video extends React.PureComponent {
     duration: 0,
     paused: true,
     dragging: false,
+    containerWidth: false,
     fullscreen: false,
     hovered: false,
     muted: false,
@@ -113,6 +115,12 @@ export default class Video extends React.PureComponent {
 
   setPlayerRef = c => {
     this.player = c;
+
+    if (c) {
+      this.setState({
+        containerWidth: c.offsetWidth,
+      });
+    }
   }
 
   setVideoRef = c => {
@@ -246,12 +254,23 @@ export default class Video extends React.PureComponent {
   }
 
   render () {
-    const { preview, src, width, height, startTime, onOpenVideo, onCloseVideo, intl, alt, detailed } = this.props;
-    const { currentTime, duration, buffer, dragging, paused, fullscreen, hovered, muted, revealed } = this.state;
+    const { preview, src, inline, startTime, onOpenVideo, onCloseVideo, intl, alt, detailed } = this.props;
+    const { containerWidth, currentTime, duration, buffer, dragging, paused, fullscreen, hovered, muted, revealed } = this.state;
     const progress = (currentTime / duration) * 100;
+    const playerStyle = {};
+
+    let { width, height } = this.props;
+
+    if (inline && containerWidth) {
+      width  = containerWidth;
+      height = containerWidth / (16/9);
+
+      playerStyle.width  = width;
+      playerStyle.height = height;
+    }
 
     return (
-      <div className={classNames('video-player', { inactive: !revealed, detailed, inline: width && height && !fullscreen, fullscreen })} style={{ width, height }} ref={this.setPlayerRef} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
+      <div className={classNames('video-player', { inactive: !revealed, detailed, inline: inline && !fullscreen, fullscreen })} style={playerStyle} ref={this.setPlayerRef} onMouseEnter={this.handleMouseEnter} onMouseLeave={this.handleMouseLeave}>
         <video
           ref={this.setVideoRef}
           src={src}

app/javascript/styles/mastodon/components.scss

@@ -4365,7 +4365,7 @@ a.status-card {
 
   &.inline {
     video {
-      object-fit: cover;
+      object-fit: contain;
       position: relative;
       top: 50%;
       transform: translateY(-50%);

app/views/stream_entries/_detailed_status.html.haml

@@ -22,7 +22,7 @@
   - if !status.media_attachments.empty?
     - if status.media_attachments.first.video?
       - video = status.media_attachments.first
-      %div{ data: { component: 'Video', props: Oj.dump(src: video.file.url(:original), preview: video.file.url(:small), sensitive: status.sensitive? && !current_account&.user&.setting_display_sensitive_media, width: 670, height: 380, detailed: true) }}
+      %div{ data: { component: 'Video', props: Oj.dump(src: video.file.url(:original), preview: video.file.url(:small), sensitive: status.sensitive? && !current_account&.user&.setting_display_sensitive_media, width: 670, height: 380, detailed: true, inline: true) }}
     - else
       %div{ data: { component: 'MediaGallery', props: Oj.dump(height: 380, sensitive: status.sensitive? && !current_account&.user&.setting_display_sensitive_media, standalone: true, 'autoPlayGif': current_account&.user&.setting_auto_play_gif, 'reduceMotion': current_account&.user&.setting_reduce_motion, media: status.media_attachments.map { |a| ActiveModelSerializers::SerializableResource.new(a, serializer: REST::MediaAttachmentSerializer).as_json }) }}
   - elsif status.preview_cards.first

app/views/stream_entries/_simple_status.html.haml

@@ -23,6 +23,6 @@
   - unless status.media_attachments.empty?
     - if status.media_attachments.first.video?
       - video = status.media_attachments.first
-      %div{ data: { component: 'Video', props: Oj.dump(src: video.file.url(:original), preview: video.file.url(:small), sensitive: status.sensitive? && !current_account&.user&.setting_display_sensitive_media, width: 610, height: 343) }}
+      %div{ data: { component: 'Video', props: Oj.dump(src: video.file.url(:original), preview: video.file.url(:small), sensitive: status.sensitive? && !current_account&.user&.setting_display_sensitive_media, width: 610, height: 343, inline: true) }}
     - else
       %div{ data: { component: 'MediaGallery', props: Oj.dump(height: 343, sensitive: status.sensitive? && !current_account&.user&.setting_display_sensitive_media, 'autoPlayGif': current_account&.user&.setting_auto_play_gif, media: status.media_attachments.map { |a| ActiveModelSerializers::SerializableResource.new(a, serializer: REST::MediaAttachmentSerializer).as_json }) }}