Added popup menu to folder long press

- Synchronize now
- Delete local messages

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

@@ -22,12 +22,16 @@ package eu.faircode.email;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Typeface;
+import android.os.Bundle;
 import android.util.Log;
 import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import java.text.Collator;
 import java.util.ArrayList;
@@ -37,6 +41,8 @@ import java.util.List;
 import java.util.Locale;
 
 import androidx.annotation.NonNull;
+import androidx.appcompat.widget.PopupMenu;
+import androidx.lifecycle.LifecycleOwner;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import androidx.recyclerview.widget.DiffUtil;
 import androidx.recyclerview.widget.ListUpdateCallback;
@@ -44,6 +50,7 @@ import androidx.recyclerview.widget.RecyclerView;
 
 public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder> {
     private Context context;
+    private LifecycleOwner owner;
 
     private List<TupleFolderEx> all = new ArrayList<>();
     private List<TupleFolderEx> filtered = new ArrayList<>();
@@ -60,6 +67,9 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
         ImageView ivState;
         TextView tvError;
 
+        private final static int action_synchronize = 1;
+        private final static int action_delete_local = 2;
+
         ViewHolder(View itemView) {
             super(itemView);
 
@@ -158,19 +168,56 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
             if (pos == RecyclerView.NO_POSITION)
                 return false;
 
-            TupleFolderEx folder = filtered.get(pos);
+            final TupleFolderEx folder = filtered.get(pos);
+
+            PopupMenu popupMenu = new PopupMenu(context, itemView);
+            popupMenu.getMenu().add(Menu.NONE, action_synchronize, 1, R.string.title_synchronize_now);
+            popupMenu.getMenu().add(Menu.NONE, action_delete_local, 2, R.string.title_delete_local);
+            popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
+                @Override
+                public boolean onMenuItemClick(MenuItem target) {
+                    switch (target.getItemId()) {
+                        case action_synchronize:
                             Log.i(Helper.TAG, folder.name + " requesting sync");
                             LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(context);
                             lbm.sendBroadcast(new Intent(ServiceSynchronize.ACTION_SYNCHRONIZE_FOLDER)
                                     .setType("account/" + (folder.account == null ? "outbox" : Long.toString(folder.account)))
                                     .putExtra("folder", folder.id));
+                            break;
+
+                        case action_delete_local:
+                            Bundle args = new Bundle();
+                            args.putLong("id", folder.id);
+
+                            new SimpleTask<Void>() {
+                                @Override
+                                protected Void onLoad(Context context, Bundle args) {
+                                    long id = args.getLong("id");
+                                    DB.getInstance(context).message().deleteMessages(id);
+                                    return null;
+                                }
+
+                                @Override
+                                public void onException(Bundle args, Throwable ex) {
+                                    Toast.makeText(context, ex.toString(), Toast.LENGTH_LONG).show();
+                                }
+                            }.load(context, owner, args);
+
+                            break;
+                    }
+                    return true;
+                }
+            });
+
+            popupMenu.show();
 
             return true;
         }
     }
 
-    AdapterFolder(Context context) {
+    AdapterFolder(Context context, LifecycleOwner owner) {
         this.context = context;
+        this.owner = owner;
         setHasStableIds(true);
     }
 

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

@@ -100,10 +100,6 @@ public class FragmentFolder extends FragmentEx {
                             if (!synchronize)
                                 db.folder().setFolderError(id, null);
 
-                            EntityFolder folder = db.folder().getFolder(id);
-                            if (!folder.synchronize)
-                                db.message().deleteMessages(folder.id);
-
                             db.setTransactionSuccessful();
                         } finally {
                             db.endTransaction();

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

@@ -72,7 +72,7 @@ public class FragmentFolders extends FragmentEx {
         LinearLayoutManager llm = new LinearLayoutManager(getContext());
         rvFolder.setLayoutManager(llm);
 
-        adapter = new AdapterFolder(getContext());
+        adapter = new AdapterFolder(getContext(), getViewLifecycleOwner());
         rvFolder.setAdapter(adapter);
 
         fab.setOnClickListener(new View.OnClickListener() {

app/src/main/res/values/strings.xml

@@ -121,6 +121,8 @@
     <string name="title_insecure">Insecure connections are not supported</string>
 
     <string name="title_folder_unseen" translatable="false">%1$s (%2$d)</string>
+    <string name="title_synchronize_now">Synchronize now</string>
+    <string name="title_delete_local">Delete local messages</string>
     <string name="title_synchronize_folder">Synchronize (receive messages)</string>
     <string name="title_unified_folder">Show in unified inbox</string>
     <string name="title_after">Synchronize (days)</string>