Disable files for friend requests

background.html

@@ -136,7 +136,7 @@
                 <div class='capture-audio hide'>
                     <button class='microphone' {{#disable-inputs}} disabled="disabled" {{/disable-inputs}}></button>
                 </div>
-                <div class='choose-file'>
+                <div id='choose-file' class='choose-file'>
                     <button class='paperclip thumbnail' {{#disable-inputs}} disabled="disabled" {{/disable-inputs}}></button>
                     <input type='file' class='file-input' multiple='multiple' accept='video/* image/*'>
                 </div>

js/views/conversation_view.js

@@ -93,6 +93,7 @@
     initialize(options) {
       this.listenTo(this.model, 'destroy', this.stopListening);
       this.listenTo(this.model, 'change:verified', this.onVerifiedChange);
+      this.listenTo(this.model, 'change:friendRequestStatus', this.updateFileLock);
       this.listenTo(this.model, 'newmessage', this.addMessage);
       this.listenTo(this.model, 'opened', this.onOpened);
       this.listenTo(this.model, 'prune', this.onPrune);
@@ -160,6 +161,7 @@
       );
 
       this.render();
+      this.updateFileLock();
 
       this.model.updateTextInputState();
 
@@ -621,6 +623,14 @@
       }
     },
 
+    updateFileLock() {
+      if (this.model.isPrivate() && !this.model.isFriend()) {
+        this.$('#choose-file').hide()
+      } else {
+        this.$('#choose-file').show()
+      }
+    },
+
     toggleMicrophone() {
       // ALWAYS HIDE until we support audio
       this.$('.capture-audio').hide();