Added long press to show full attachment name

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

@@ -27,6 +27,8 @@ import android.content.pm.PackageManager;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
+import android.text.TextUtils;
+import android.view.Gravity;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -34,6 +36,7 @@ import android.widget.ImageButton;
 import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.core.content.FileProvider;
@@ -66,7 +69,7 @@ public class AdapterAttachment extends RecyclerView.Adapter<AdapterAttachment.Vi
 
     private List<EntityAttachment> items = new ArrayList<>();
 
-    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
+    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
         private View view;
         private ImageButton ibDelete;
         private ImageView ivType;
@@ -95,12 +98,14 @@ public class AdapterAttachment extends RecyclerView.Adapter<AdapterAttachment.Vi
 
         private void wire() {
             view.setOnClickListener(this);
+            view.setOnLongClickListener(this);
             ibDelete.setOnClickListener(this);
             ibSave.setOnClickListener(this);
         }
 
         private void unwire() {
             view.setOnClickListener(null);
+            view.setOnLongClickListener(null);
             ibDelete.setOnClickListener(null);
             ibSave.setOnClickListener(null);
         }
@@ -204,6 +209,7 @@ public class AdapterAttachment extends RecyclerView.Adapter<AdapterAttachment.Vi
             int pos = getAdapterPosition();
             if (pos == RecyclerView.NO_POSITION)
                 return;
+
             EntityAttachment attachment = items.get(pos);
             if (attachment == null)
                 return;
@@ -222,6 +228,25 @@ public class AdapterAttachment extends RecyclerView.Adapter<AdapterAttachment.Vi
             }
         }
 
+        @Override
+        public boolean onLongClick(View v) {
+            int pos = getAdapterPosition();
+            if (pos == RecyclerView.NO_POSITION)
+                return false;
+
+            EntityAttachment attachment = items.get(pos);
+            if (attachment == null)
+                return false;
+
+            if (TextUtils.isEmpty(attachment.name))
+                return false;
+
+            Toast toast = ToastEx.makeText(context, attachment.name, Toast.LENGTH_LONG);
+            toast.setGravity(Gravity.CENTER, 0, 0);
+            toast.show();
+            return true;
+        }
+
         private void onDelete(final EntityAttachment attachment) {
             Bundle args = new Bundle();
             args.putLong("id", attachment.id);