Improved download body behavior

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

@@ -511,6 +511,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
         private TextView tvNoInternetBody;
         private ImageButton ibDownloading;
         private Group grpDownloading;
+        private ImageButton ibDownload;
         private ImageButton ibInfrastructure;
         private ImageButton ibTrashBottom;
         private ImageButton ibArchiveBottom;
@@ -976,6 +977,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             tvNoInternetBody = vsBody.findViewById(R.id.tvNoInternetBody);
             ibDownloading = vsBody.findViewById(R.id.ibDownloading);
             grpDownloading = vsBody.findViewById(R.id.grpDownloading);
+            ibDownload = vsBody.findViewById(R.id.ibDownload);
             ibInfrastructure = vsBody.findViewById(R.id.ibInfrastructure);
             ibTrashBottom = vsBody.findViewById(R.id.ibTrashBottom);
             ibArchiveBottom = vsBody.findViewById(R.id.ibArchiveBottom);
@@ -1132,6 +1134,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                 ibTools.setOnClickListener(this);
 
                 ibDownloading.setOnClickListener(this);
+                ibDownload.setOnClickListener(this);
                 ibInfrastructure.setOnClickListener(this);
                 ibTrashBottom.setOnClickListener(this);
                 ibTrashBottom.setOnLongClickListener(this);
@@ -1256,6 +1259,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                 ibTools.setOnClickListener(null);
 
                 ibDownloading.setOnClickListener(null);
+                ibDownload.setOnClickListener(null);
                 ibInfrastructure.setOnClickListener(null);
                 ibTrashBottom.setOnClickListener(null);
                 ibTrashBottom.setOnLongClickListener(null);
@@ -1879,6 +1883,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
             tvNoInternetBody.setVisibility(View.GONE);
             grpDownloading.setVisibility(View.GONE);
+            ibDownload.setVisibility(View.GONE);
             tvBody.setText(null);
             tvBody.setVisibility(View.GONE);
             vwRipple.setVisibility(View.GONE);
@@ -2177,7 +2182,14 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             // Message text
             boolean content = (message.content || message.error != null);
             tvNoInternetBody.setVisibility(suitable || content ? View.GONE : View.VISIBLE);
-            grpDownloading.setVisibility(content ? View.GONE : View.VISIBLE);
+
+            db.operation().liveOperations(message.id, EntityOperation.BODY).observe(owner, new Observer<TupleMessageOperation>() {
+                @Override
+                public void onChanged(TupleMessageOperation operation) {
+                    grpDownloading.setVisibility(operation == null || operation.id == null ? View.GONE : View.VISIBLE);
+                    ibDownload.setVisibility(operation != null && operation.id == null && !operation.content ? View.VISIBLE : View.GONE);
+                }
+            });
 
             boolean show_full = properties.getValue("full", message.id);
             if (show_full)
@@ -4606,7 +4618,9 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
                     onActionTools(message);
                 } else if (id == R.id.ibDownloading) {
                     Helper.viewFAQ(context, 15);
-                } else if (id == R.id.ibSeen || id == R.id.ibSeenBottom) {
+                } else if (id == R.id.ibDownload)
+                    onActionDownload(message);
+                else if (id == R.id.ibSeen || id == R.id.ibSeenBottom) {
                     onToggleSeen(message);
                 } else if (id == R.id.ibHide) {
                     onMenuHide(message);
@@ -5473,6 +5487,42 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
             bindAddresses(message);
         }
 
+        private void onActionDownload(TupleMessageEx message) {
+            Bundle args = new Bundle();
+            args.putLong("id", message.id);
+
+            new SimpleTask<Void>() {
+                @Override
+                protected Void onExecute(Context context, Bundle args) throws Throwable {
+                    long id = args.getLong("id");
+
+                    DB db = DB.getInstance(context);
+                    try {
+                        db.beginTransaction();
+
+                        EntityMessage message = db.message().getMessage(id);
+                        if (message == null)
+                            return null;
+
+                        db.message().setMessageError(message.id, null);
+
+                        EntityOperation.queue(context, message, EntityOperation.BODY);
+
+                        db.setTransactionSuccessful();
+                    } finally {
+                        db.endTransaction();
+                    }
+
+                    return null;
+                }
+
+                @Override
+                protected void onException(Bundle args, Throwable ex) {
+                    Log.unexpectedError(parentFragment.getParentFragment(), ex);
+                }
+            }.execute(context, owner, args, "message:downlaod");
+        }
+
         private boolean getShowAddressesDefault(TupleMessageEx message) {
             if (show_addresses_default)
                 return true;

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

@@ -576,7 +576,7 @@ class Core {
 
                             db.operation().setOperationTries(op.id, op.tries);
 
-                            op.error = Log.formatThrowable(ex);
+                            op.error = Log.formatThrowable(ex, !EntityOperation.BODY.equals(op.name));
                             db.operation().setOperationError(op.id, op.error);
 
                             if (message != null &&

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

@@ -79,6 +79,12 @@ public interface DaoOperation {
             " ORDER BY " + priority + ", id")
     LiveData<List<TupleOperationEx>> liveOperations(long account);
 
+    @Query("SELECT operation.id, message.content" +
+            " FROM message" +
+            " LEFT JOIN operation ON operation.message = message.id AND operation.name = :name" +
+            " WHERE message.id = :message")
+    LiveData<TupleMessageOperation> liveOperations(long message, String name);
+
     @Transaction
     @Query("SELECT operation.*" +
             " FROM operation" +

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

@@ -0,0 +1,25 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    FairEmail is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2024 by Marcel Bokhorst (M66B)
+*/
+
+public class TupleMessageOperation {
+    public Long id;
+    public boolean content;
+}