Delete attachment improvements

app/src/main/java/eu/faircode/email/Core.java

@@ -510,7 +510,7 @@ class Core {
                                     break;
 
                                 case EntityOperation.DETACH:
-                                    onDetach(context, jargs, message, (IMAPFolder) ifolder);
+                                    onDetach(context, jargs, account, folder, message, (IMAPStore) istore, (IMAPFolder) ifolder, state);
                                     break;
 
                                 case EntityOperation.EXISTS:
@@ -2092,7 +2092,7 @@ class Core {
             EntityLog.log(context, "Operation attachment size=" + attachment.size);
     }
 
-    private static void onDetach(Context context, JSONArray jargs, EntityMessage message, IMAPFolder ifolder) throws JSONException, MessagingException, IOException {
+    private static void onDetach(Context context, JSONArray jargs, EntityAccount account, EntityFolder folder, EntityMessage message, IMAPStore istore, IMAPFolder ifolder, State state) throws JSONException, MessagingException, IOException {
         DB db = DB.getInstance(context);
 
         JSONArray jids = jargs.getJSONArray(0);
@@ -2126,6 +2126,13 @@ class Core {
 
         ifolder.appendMessages(new Message[]{icopy});
 
+        Long uid = findUid(context, account, ifolder, msgid);
+        if (uid != null) {
+            JSONArray fargs = new JSONArray();
+            fargs.put(uid);
+            onFetch(context, fargs, folder, istore, ifolder, state);
+        }
+
         if (trash == null) {
             imessage.setFlag(Flags.Flag.DELETED, true);
             expunge(context, ifolder, Arrays.asList(imessage));

app/src/main/java/eu/faircode/email/EntityAttachment.java

@@ -100,7 +100,7 @@ public class EntityAttachment {
     public String error;
 
     @Ignore
-    public boolean selected = true;
+    public boolean selected = false;
 
     // Gmail sends inline images as attachments with a name and cid
 

app/src/main/java/eu/faircode/email/FragmentDialogDeleteAttachments.java

@@ -84,6 +84,9 @@ public class FragmentDialogDeleteAttachments extends FragmentDialogBase {
             protected void onExecuted(final Bundle args, List<EntityAttachment> attachments) {
                 if (attachments == null)
                     attachments = new ArrayList<>();
+                for (EntityAttachment attachment : attachments)
+                    if (attachment.encryption == null)
+                        attachment.selected = true;
                 adapter.set(attachments);
             }
 
@@ -162,6 +165,7 @@ public class FragmentDialogDeleteAttachments extends FragmentDialogBase {
             private void bindTo(EntityAttachment attachment) {
                 cbEnabled.setText(attachment.name);
                 cbEnabled.setChecked(attachment.selected);
+                cbEnabled.setEnabled(attachment.encryption == null);
 
                 StringBuilder sb = new StringBuilder();
                 if (!TextUtils.isEmpty(attachment.type))