Prefer GoogleChrome.is* over MIME.is*

js/models/conversations.js

@@ -17,7 +17,7 @@
 
   window.Whisper = window.Whisper || {};
 
-  const { Message, MIME } = window.Signal.Types;
+  const { Message } = window.Signal.Types;
   const { upgradeMessageSchema, loadAttachmentData } = window.Signal.Migrations;
 
   // TODO: Factor out private and group subclasses of Conversation
@@ -651,7 +651,8 @@
         text: quotedMessage.get('body'),
         attachments: await Promise.all((attachments || []).map(async (attachment) => {
           const { contentType } = attachment;
-          const willMakeThumbnail = MIME.isImage(contentType);
+          const willMakeThumbnail =
+            Signal.Util.GoogleChrome.isImageTypeSupported(contentType);
 
           return {
             contentType,
@@ -1111,7 +1112,9 @@
       const first = attachments[0];
       const { thumbnail, contentType } = first;
 
-      return thumbnail || MIME.isVideo(contentType) || MIME.isImage(contentType);
+      return thumbnail ||
+        Signal.Util.GoogleChrome.isImageTypeSupported(contentType) ||
+        Signal.Util.GoogleChrome.isVideoTypeSupported(contentType);
     },
     forceRender(message) {
       message.trigger('change', message);
@@ -1151,7 +1154,7 @@
 
       // Maybe in the future we could try to pull the thumbnail from a video ourselves,
       //   but for now we will rely on incoming thumbnails only.
-      if (!MIME.isImage(first.contentType)) {
+      if (!Signal.Util.GoogleChrome.isImageTypeSupported(first.contentType)) {
         return false;
       }
 
@@ -1191,7 +1194,7 @@
 
       // Maybe in the future we could try to pull thumbnails video ourselves,
       //   but for now we will rely on incoming thumbnails only.
-      if (!first || !MIME.isImage(first.contentType)) {
+      if (!first || !Signal.Util.GoogleChrome.isImageTypeSupported(first.contentType)) {
         return;
       }
 

js/views/attachment_view.js

@@ -142,15 +142,16 @@
     },
     isAudio() {
       const { contentType } = this.model;
+      // TODO: Implement and use `Signal.Util.GoogleChrome.isAudioTypeSupported`:
       return Signal.Types.MIME.isAudio(contentType);
     },
     isVideo() {
       const { contentType } = this.model;
-      return Signal.Types.MIME.isVideo(contentType);
+      return Signal.Util.GoogleChrome.isVideoTypeSupported(contentType);
     },
     isImage() {
       const { contentType } = this.model;
-      return Signal.Types.MIME.isImage(contentType);
+      return Signal.Util.GoogleChrome.isImageTypeSupported(contentType);
     },
     mediaType() {
       if (this.isVoiceMessage()) {

js/views/message_view.js

@@ -429,7 +429,7 @@
       }
 
       const first = attachments[0];
-      if (Signal.Types.MIME.isImage(first.contentType)) {
+      if (Signal.Util.GoogleChrome.isImageTypeSupported(first.contentType)) {
         return true;
       }
 

ts/components/conversation/Quote.tsx

@@ -2,6 +2,7 @@ import React from 'react';
 import classnames from 'classnames';
 
 import * as MIME from '../../../ts/types/MIME';
+import * as GoogleChrome from '../../../ts/util/GoogleChrome';
 
 
 interface Props {
@@ -91,12 +92,12 @@ export class Quote extends React.Component<Props, {}> {
     const { contentType, thumbnail } = first;
     const objectUrl = getObjectUrl(thumbnail);
 
-    if (MIME.isVideo(contentType)) {
+    if (GoogleChrome.isVideoTypeSupported(contentType)) {
       return objectUrl
         ? this.renderImage(objectUrl, 'play')
         : this.renderIcon('movie');
     }
-    if (MIME.isImage(contentType)) {
+    if (GoogleChrome.isImageTypeSupported(contentType)) {
       return objectUrl
         ? this.renderImage(objectUrl)
         : this.renderIcon('image');
@@ -122,10 +123,10 @@ export class Quote extends React.Component<Props, {}> {
     const first = attachments[0];
     const { contentType, fileName, isVoiceMessage } = first;
 
-    if (MIME.isVideo(contentType)) {
+    if (GoogleChrome.isVideoTypeSupported(contentType)) {
       return <div className="type-label">{i18n('video')}</div>;
     }
-    if (MIME.isImage(contentType)) {
+    if (GoogleChrome.isImageTypeSupported(contentType)) {
       return <div className="type-label">{i18n('photo')}</div>;
     }
     if (MIME.isAudio(contentType) && isVoiceMessage) {