Add audio uploads (#11123)

* Add audio uploads

Fix #4827

Accept uploads of OGG, WAV, FLAC, OPUS and MP3 files, and converts
them to OGG. Media attachments get a new `audio` type. In the UI,
audio uploads are displayed identically to video uploads.

* Improve code style

5 files changed, 19 insertions, 17 deletions

diff --git a/app/javascript/mastodon/components/status.js b/app/javascript/mastodon/components/status.js
index aa5e870dc..9b1035649 100644
--- a/app/javascript/mastodon/components/status.js
+++ b/app/javascript/mastodon/components/status.js
@@ -333,17 +333,17 @@ class Status extends ImmutablePureComponent {
             media={status.get('media_attachments')}
           />
         );
-      } else if (status.getIn(['media_attachments', 0, 'type']) === 'video') {
-        const video = status.getIn(['media_attachments', 0]);
+      } else if (['video', 'audio'].includes(status.getIn(['media_attachments', 0, 'type']))) {
+        const attachment = status.getIn(['media_attachments', 0]);
 
         media = (
           <Bundle fetchComponent={Video} loading={this.renderLoadingVideoPlayer} >
             {Component => (
               <Component
-                preview={video.get('preview_url')}
-                blurhash={video.get('blurhash')}
-                src={video.get('url')}
-                alt={video.get('description')}
+                preview={attachment.get('preview_url')}
+                blurhash={attachment.get('blurhash')}
+                src={attachment.get('url')}
+                alt={attachment.get('description')}
                 width={this.props.cachedMediaWidth}
                 height={110}
                 inline
diff --git a/app/javascript/mastodon/features/compose/components/upload_button.js b/app/javascript/mastodon/features/compose/components/upload_button.js
index 90e2769f3..e141857be 100644
--- a/app/javascript/mastodon/features/compose/components/upload_button.js
+++ b/app/javascript/mastodon/features/compose/components/upload_button.js
@@ -7,9 +7,11 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 
 const messages = defineMessages({
-  upload: { id: 'upload_button.label', defaultMessage: 'Add media (JPEG, PNG, GIF, WebM, MP4, MOV)' },
+  upload: { id: 'upload_button.label', defaultMessage: 'Add media ({formats})' },
 });
 
+const SUPPORTED_FORMATS = 'JPEG, PNG, GIF, WebM, MP4, MOV, OGG, WAV, MP3, FLAC';
+
 const makeMapStateToProps = () => {
   const mapStateToProps = state => ({
     acceptContentTypes: state.getIn(['media_attachments', 'accept_content_types']),
@@ -60,9 +62,9 @@ class UploadButton extends ImmutablePureComponent {
 
     return (
       <div className='compose-form__upload-button'>
-        <IconButton icon='camera' title={intl.formatMessage(messages.upload)} disabled={disabled} onClick={this.handleClick} className='compose-form__upload-button-icon' size={18} inverted style={iconStyle} />
+        <IconButton icon='camera' title={intl.formatMessage(messages.upload, { formats: SUPPORTED_FORMATS })} disabled={disabled} onClick={this.handleClick} className='compose-form__upload-button-icon' size={18} inverted style={iconStyle} />
         <label>
-          <span style={{ display: 'none' }}>{intl.formatMessage(messages.upload)}</span>
+          <span style={{ display: 'none' }}>{intl.formatMessage(messages.upload, { formats: SUPPORTED_FORMATS })}</span>
           <input
             key={resetFileKey}
             ref={this.setRef}
diff --git a/app/javascript/mastodon/features/compose/containers/upload_button_container.js b/app/javascript/mastodon/features/compose/containers/upload_button_container.js
index d8b8c4b6e..1471e628b 100644
--- a/app/javascript/mastodon/features/compose/containers/upload_button_container.js
+++ b/app/javascript/mastodon/features/compose/containers/upload_button_container.js
@@ -3,7 +3,7 @@ import UploadButton from '../components/upload_button';
 import { uploadCompose } from '../../../actions/compose';
 
 const mapStateToProps = state => ({
-  disabled: state.getIn(['compose', 'is_uploading']) || (state.getIn(['compose', 'media_attachments']).size > 3 || state.getIn(['compose', 'media_attachments']).some(m => m.get('type') === 'video')),
+  disabled: state.getIn(['compose', 'is_uploading']) || (state.getIn(['compose', 'media_attachments']).size > 3 || state.getIn(['compose', 'media_attachments']).some(m => ['video', 'audio'].includes(m.get('type')))),
   unavailable: state.getIn(['compose', 'poll']) !== null,
   resetFileKey: state.getIn(['compose', 'resetFileKey']),
 });
diff --git a/app/javascript/mastodon/features/status/components/detailed_status.js b/app/javascript/mastodon/features/status/components/detailed_status.js
index c7aa4d033..4af157af1 100644
--- a/app/javascript/mastodon/features/status/components/detailed_status.js
+++ b/app/javascript/mastodon/features/status/components/detailed_status.js
@@ -107,15 +107,15 @@ export default class DetailedStatus extends ImmutablePureComponent {
     }
 
     if (status.get('media_attachments').size > 0) {
-      if (status.getIn(['media_attachments', 0, 'type']) === 'video') {
-        const video = status.getIn(['media_attachments', 0]);
+      if (['video', 'audio'].includes(status.getIn(['media_attachments', 0, 'type']))) {
+        const attachment = status.getIn(['media_attachments', 0]);
 
         media = (
           <Video
-            preview={video.get('preview_url')}
-            blurhash={video.get('blurhash')}
-            src={video.get('url')}
-            alt={video.get('description')}
+            preview={attachment.get('preview_url')}
+            blurhash={attachment.get('blurhash')}
+            src={attachment.get('url')}
+            alt={attachment.get('description')}
             width={300}
             height={150}
             inline
diff --git a/app/javascript/mastodon/locales/en.json b/app/javascript/mastodon/locales/en.json
index 34ec1ca23..67e1e01f8 100644
--- a/app/javascript/mastodon/locales/en.json
+++ b/app/javascript/mastodon/locales/en.json
@@ -369,7 +369,7 @@
   "trends.count_by_accounts": "{count} {rawCount, plural, one {person} other {people}} talking",
   "ui.beforeunload": "Your draft will be lost if you leave Mastodon.",
   "upload_area.title": "Drag & drop to upload",
-  "upload_button.label": "Add media (JPEG, PNG, GIF, WebM, MP4, MOV)",
+  "upload_button.label": "Add media ({formats})",
   "upload_error.limit": "File upload limit exceeded.",
   "upload_error.poll": "File upload not allowed with polls.",
   "upload_form.description": "Describe for the visually impaired",