Added FAB reply menu

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

@@ -891,20 +891,68 @@ public class FragmentMessages extends FragmentBase implements SharedPreferences.
         fabReply.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
-                boolean reply_hint = prefs.getBoolean("reply_hint", false);
-                if (reply_hint)
-                    onReply("reply");
-                else
-                    new AlertDialog.Builder(getContext())
-                            .setMessage(R.string.title_reply_hint)
-                            .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+                if (values.containsKey("expanded") && values.get("expanded").size() > 0) {
+                    Bundle args = new Bundle();
+                    args.putLong("id", values.get("expanded").get(0));
+
+                    new SimpleTask<Integer>() {
                         @Override
-                                public void onClick(DialogInterface dialog, int which) {
-                                    prefs.edit().putBoolean("reply_hint", true).apply();
+                        protected Integer onExecute(Context context, Bundle args) {
+                            long id = args.getLong("id");
+
+                            DB db = DB.getInstance(context);
+                            EntityMessage message = db.message().getMessage(id);
+                            if (message == null)
+                                return null;
+
+                            List<TupleIdentityEx> identities = db.identity().getComposableIdentities(message.account);
+                            if (identities == null)
+                                return null;
+
+                            Address[] recipients = message.getAllRecipients(identities, message.account);
+                            return recipients.length;
+                        }
+
+                        @Override
+                        protected void onExecuted(Bundle args, Integer recipients) {
+                            if (recipients == null)
+                                return;
+
+                            PopupMenuLifecycle popupMenu = new PopupMenuLifecycle(getContext(), getViewLifecycleOwner(), fabReply);
+                            popupMenu.inflate(R.menu.popup_reply);
+                            for (int i = 0; i < popupMenu.getMenu().size(); i++)
+                                popupMenu.getMenu().getItem(i).setVisible(false);
+                            popupMenu.getMenu().findItem(R.id.menu_reply_to_sender).setVisible(true);
+                            popupMenu.getMenu().findItem(R.id.menu_reply_to_all).setVisible(recipients > 1);
+                            popupMenu.getMenu().findItem(R.id.menu_forward).setVisible(true);
+
+                            popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
+                                @Override
+                                public boolean onMenuItemClick(MenuItem target) {
+                                    switch (target.getItemId()) {
+                                        case R.id.menu_reply_to_sender:
                                             onReply("reply");
+                                            return true;
+                                        case R.id.menu_reply_to_all:
+                                            onReply("reply_all");
+                                            return true;
+                                        case R.id.menu_forward:
+                                            onReply("forward");
+                                            return true;
+                                        default:
+                                            return false;
+                                    }
+                                }
+                            });
+                            popupMenu.show();
+                        }
+
+                        @Override
+                        protected void onException(Bundle args, Throwable ex) {
+                            Log.unexpectedError(getParentFragmentManager(), ex);
+                        }
+                    }.execute(FragmentMessages.this, args, "messages:reply");
                 }
-                            })
-                            .show();
             }
         });