app/src/main/java/net/ktnx/mobileledger/ui/profiles/ProfileDetailFragment.java

   1 /*
   2  * Copyright © 2020 Damyan Ivanov.
   3  * This file is part of MoLe.
   4  * MoLe is free software: you can distribute it and/or modify it
   5  * under the term of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your opinion), any later version.
   8  *
   9  * MoLe is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  12  * GNU General Public License terms for details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
  16  */
  17
  18 package net.ktnx.mobileledger.ui.profiles;
  19
  20 import android.app.Activity;
  21 import android.app.AlertDialog;
  22 import android.graphics.Typeface;
  23 import android.os.Bundle;
  24 import android.text.Editable;
  25 import android.text.TextWatcher;
  26 import android.view.Menu;
  27 import android.view.MenuInflater;
  28 import android.view.MenuItem;
  29 import android.view.View;
  30 import android.widget.LinearLayout;
  31 import android.widget.PopupMenu;
  32 import android.widget.Switch;
  33 import android.widget.TextView;
  34
  35 import androidx.annotation.NonNull;
  36 import androidx.annotation.Nullable;
  37 import androidx.appcompat.app.AppCompatActivity;
  38 import androidx.fragment.app.Fragment;
  39 import androidx.fragment.app.FragmentActivity;
  40 import androidx.lifecycle.LifecycleOwner;
  41 import androidx.lifecycle.ViewModelProvider;
  42
  43 import com.google.android.material.appbar.CollapsingToolbarLayout;
  44 import com.google.android.material.floatingactionbutton.FloatingActionButton;
  45 import com.google.android.material.textfield.TextInputLayout;
  46
  47 import net.ktnx.mobileledger.BuildConfig;
  48 import net.ktnx.mobileledger.R;
  49 import net.ktnx.mobileledger.async.SendTransactionTask;
  50 import net.ktnx.mobileledger.model.Data;
  51 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  52 import net.ktnx.mobileledger.ui.CurrencySelectorFragment;
  53 import net.ktnx.mobileledger.ui.HueRingDialog;
  54 import net.ktnx.mobileledger.ui.activity.ProfileDetailActivity;
  55 import net.ktnx.mobileledger.utils.Colors;
  56 import net.ktnx.mobileledger.utils.Misc;
  57
  58 import org.jetbrains.annotations.NonNls;
  59 import org.jetbrains.annotations.NotNull;
  60
  61 import java.net.MalformedURLException;
  62 import java.net.URL;
  63 import java.util.ArrayList;
  64 import java.util.Objects;
  65 import java.util.UUID;
  66
  67 import static net.ktnx.mobileledger.utils.Logger.debug;
  68
  69 /**
  70  * A fragment representing a single Profile detail screen.
  71  * a {@link ProfileDetailActivity}
  72  * on handsets.
  73  */
  74 public class ProfileDetailFragment extends Fragment {
  75     /**
  76      * The fragment argument representing the item ID that this fragment
  77      * represents.
  78      */
  79     public static final String ARG_ITEM_ID = "item_id";
  80     public static final String ARG_HUE = "hue";
  81     @NonNls
  82
  83     private MobileLedgerProfile mProfile;
  84     private TextView url;
  85     private TextView defaultCommodity;
  86     private boolean defaultCommoditySet;
  87     private TextInputLayout urlLayout;
  88     private LinearLayout authParams;
  89     private Switch useAuthentication;
  90     private TextView userName;
  91     private TextInputLayout userNameLayout;
  92     private TextView password;
  93     private TextInputLayout passwordLayout;
  94     private TextView profileName;
  95     private TextInputLayout profileNameLayout;
  96     private TextView preferredAccountsFilter;
  97     private View huePickerView;
  98     private View insecureWarningText;
  99     private TextView futureDatesText;
 100     private TextView apiVersionText;
 101     private boolean syncingModelFromUI = false;
 102     /**
 103      * Mandatory empty constructor for the fragment manager to instantiate the
 104      * fragment (e.g. upon screen orientation changes).
 105      */
 106     public ProfileDetailFragment() {
 107         super(R.layout.profile_detail);
 108     }
 109     @Override
 110     public void onCreateOptionsMenu(@NotNull Menu menu, @NotNull MenuInflater inflater) {
 111         debug("profiles", "[fragment] Creating profile details options menu");
 112         super.onCreateOptionsMenu(menu, inflater);
 113         inflater.inflate(R.menu.profile_details, menu);
 114         final MenuItem menuDeleteProfile = menu.findItem(R.id.menuDelete);
 115         menuDeleteProfile.setOnMenuItemClickListener(item -> onDeleteProfile());
 116         final ArrayList<MobileLedgerProfile> profiles = Data.profiles.getValue();
 117
 118         if (BuildConfig.DEBUG) {
 119             final MenuItem menuWipeProfileData = menu.findItem(R.id.menuWipeData);
 120             menuWipeProfileData.setOnMenuItemClickListener(ignored -> onWipeDataMenuClicked());
 121             menuWipeProfileData.setVisible(mProfile != null);
 122         }
 123     }
 124     private boolean onDeleteProfile() {
 125         AlertDialog.Builder builder = new AlertDialog.Builder(getContext());
 126         builder.setTitle(mProfile.getName());
 127         builder.setMessage(R.string.remove_profile_dialog_message);
 128         builder.setPositiveButton(R.string.Remove, (dialog, which) -> {
 129             debug("profiles", String.format("[fragment] removing profile %s", mProfile.getUuid()));
 130             mProfile.removeFromDB();
 131             ArrayList<MobileLedgerProfile> oldList = Data.profiles.getValue();
 132             if (oldList == null)
 133                 throw new AssertionError();
 134             ArrayList<MobileLedgerProfile> newList = new ArrayList<>(oldList);
 135             newList.remove(mProfile);
 136             Data.profiles.setValue(newList);
 137             if (mProfile.equals(Data.getProfile())) {
 138                 debug("profiles", "[fragment] setting current profile to 0");
 139                 Data.setCurrentProfile(newList.get(0));
 140             }
 141
 142             final FragmentActivity activity = getActivity();
 143             if (activity != null)
 144                 activity.finish();
 145         });
 146         builder.show();
 147         return false;
 148     }
 149     private boolean onWipeDataMenuClicked() {
 150         // this is a development option, so no confirmation
 151         mProfile.wipeAllData();
 152         if (mProfile.equals(Data.getProfile()))
 153             triggerProfileChange();
 154         return true;
 155     }
 156     private void triggerProfileChange() {
 157         int index = Data.getProfileIndex(mProfile);
 158         MobileLedgerProfile newProfile = new MobileLedgerProfile(mProfile);
 159         final ArrayList<MobileLedgerProfile> profiles =
 160                 Objects.requireNonNull(Data.profiles.getValue());
 161         profiles.set(index, newProfile);
 162
 163         ProfilesRecyclerViewAdapter viewAdapter = ProfilesRecyclerViewAdapter.getInstance();
 164         if (viewAdapter != null)
 165             viewAdapter.notifyItemChanged(index);
 166
 167         if (mProfile.equals(Data.getProfile()))
 168             Data.setCurrentProfile(newProfile);
 169     }
 170     private void hookTextChangeSyncRoutine(TextView view, TextChangeSyncRoutine syncRoutine) {
 171         view.addTextChangedListener(new TextWatcher() {
 172             @Override
 173             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 174             @Override
 175             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 176             @Override
 177             public void afterTextChanged(Editable s) { syncRoutine.onTextChanged(s.toString());}
 178         });
 179     }
 180     @Override
 181     public void onActivityCreated(@Nullable Bundle savedInstanceState) {
 182         super.onActivityCreated(savedInstanceState);
 183         Activity context = getActivity();
 184         if (context == null)
 185             return;
 186
 187         if ((getArguments() != null) && getArguments().containsKey(ARG_ITEM_ID)) {
 188             int index = getArguments().getInt(ARG_ITEM_ID, -1);
 189             ArrayList<MobileLedgerProfile> profiles = Data.profiles.getValue();
 190             if ((profiles != null) && (index != -1) && (index < profiles.size()))
 191                 mProfile = profiles.get(index);
 192
 193             Activity activity = this.getActivity();
 194             if (activity == null)
 195                 throw new AssertionError();
 196             CollapsingToolbarLayout appBarLayout = activity.findViewById(R.id.toolbar_layout);
 197             if (appBarLayout != null) {
 198                 if (mProfile != null)
 199                     appBarLayout.setTitle(mProfile.getName());
 200                 else
 201                     appBarLayout.setTitle(getResources().getString(R.string.new_profile_title));
 202             }
 203         }
 204
 205         final LifecycleOwner viewLifecycleOwner = getViewLifecycleOwner();
 206         final ProfileDetailModel model = getModel();
 207
 208         model.observeDefaultCommodity(viewLifecycleOwner, c -> {
 209             if (c != null)
 210                 setDefaultCommodity(c.getName());
 211             else
 212                 resetDefaultCommodity();
 213         });
 214
 215         FloatingActionButton fab = context.findViewById(R.id.fab);
 216         fab.setOnClickListener(v -> onSaveFabClicked());
 217
 218         profileName = context.findViewById(R.id.profile_name);
 219         hookTextChangeSyncRoutine(profileName, model::setProfileName);
 220         model.observeProfileName(viewLifecycleOwner, pn -> {
 221             if (!Misc.equalStrings(pn, profileName.getText()))
 222                 profileName.setText(pn);
 223         });
 224
 225         profileNameLayout = context.findViewById(R.id.profile_name_layout);
 226
 227         url = context.findViewById(R.id.url);
 228         hookTextChangeSyncRoutine(url, model::setUrl);
 229         model.observeUrl(viewLifecycleOwner, u -> {
 230             if (!Misc.equalStrings(u, url.getText()))
 231                 url.setText(u);
 232         });
 233
 234         urlLayout = context.findViewById(R.id.url_layout);
 235
 236         context.findViewById(R.id.default_commodity_layout)
 237                .setOnClickListener(v -> {
 238                    CurrencySelectorFragment cpf = CurrencySelectorFragment.newInstance(
 239                            CurrencySelectorFragment.DEFAULT_COLUMN_COUNT, false);
 240                    cpf.setOnCurrencySelectedListener(model::setDefaultCommodity);
 241                    final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 242                    cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 243                });
 244
 245         Switch showCommodityByDefault = context.findViewById(R.id.profile_show_commodity);
 246         showCommodityByDefault.setOnCheckedChangeListener(
 247                 (buttonView, isChecked) -> model.setShowCommodityByDefault(isChecked));
 248         model.observeShowCommodityByDefault(viewLifecycleOwner, showCommodityByDefault::setChecked);
 249
 250         View postingSubItems = context.findViewById(R.id.posting_sub_items);
 251
 252         Switch postingPermitted = context.findViewById(R.id.profile_permit_posting);
 253         model.observePostingPermitted(viewLifecycleOwner, isChecked -> {
 254             postingPermitted.setChecked(isChecked);
 255             postingSubItems.setVisibility(isChecked ? View.VISIBLE : View.GONE);
 256         });
 257         postingPermitted.setOnCheckedChangeListener(
 258                 ((buttonView, isChecked) -> model.setPostingPermitted(isChecked)));
 259
 260         Switch showCommentsByDefault = context.findViewById(R.id.profile_show_comments);
 261         model.observeShowCommentsByDefault(viewLifecycleOwner, showCommentsByDefault::setChecked);
 262         showCommentsByDefault.setOnCheckedChangeListener(
 263                 ((buttonView, isChecked) -> model.setShowCommentsByDefault(isChecked)));
 264
 265         defaultCommodity = context.findViewById(R.id.default_commodity_text);
 266
 267         futureDatesText = context.findViewById(R.id.future_dates_text);
 268         context.findViewById(R.id.future_dates_layout)
 269                .setOnClickListener(v -> {
 270                    MenuInflater mi = new MenuInflater(context);
 271                    PopupMenu menu = new PopupMenu(context, v);
 272                    menu.inflate(R.menu.future_dates);
 273                    menu.setOnMenuItemClickListener(item -> {
 274                        model.setFutureDates(futureDatesSettingFromMenuItemId(item.getItemId()));
 275                        return true;
 276                    });
 277                    menu.show();
 278                });
 279         model.observeFutureDates(viewLifecycleOwner,
 280                 v -> futureDatesText.setText(v.getText(getResources())));
 281
 282         apiVersionText = context.findViewById(R.id.api_version_text);
 283         model.observeApiVersion(viewLifecycleOwner,
 284                 apiVer -> apiVersionText.setText(apiVer.getDescription(getResources())));
 285         context.findViewById(R.id.api_version_layout)
 286                .setOnClickListener(v -> {
 287                    MenuInflater mi = new MenuInflater(context);
 288                    PopupMenu menu = new PopupMenu(context, v);
 289                    menu.inflate(R.menu.api_version);
 290                    menu.setOnMenuItemClickListener(item -> {
 291                        SendTransactionTask.API apiVer;
 292                        switch (item.getItemId()) {
 293                            case R.id.api_version_menu_html:
 294                                apiVer = SendTransactionTask.API.html;
 295                                break;
 296                            case R.id.api_version_menu_post_1_14:
 297                                apiVer = SendTransactionTask.API.post_1_14;
 298                                break;
 299                            case R.id.api_version_menu_pre_1_15:
 300                                apiVer = SendTransactionTask.API.pre_1_15;
 301                                break;
 302                            case R.id.api_version_menu_auto:
 303                            default:
 304                                apiVer = SendTransactionTask.API.auto;
 305                        }
 306                        model.setApiVersion(apiVer);
 307                        apiVersionText.setText(apiVer.getDescription(getResources()));
 308                        return true;
 309                    });
 310                    menu.show();
 311                });
 312         authParams = context.findViewById(R.id.auth_params);
 313
 314         useAuthentication = context.findViewById(R.id.enable_http_auth);
 315         useAuthentication.setOnCheckedChangeListener((buttonView, isChecked) -> {
 316             model.setUseAuthentication(isChecked);
 317             if (isChecked)
 318                 userName.requestFocus();
 319         });
 320         model.observeUseAuthentication(viewLifecycleOwner, isChecked -> {
 321             useAuthentication.setChecked(isChecked);
 322             authParams.setVisibility(isChecked ? View.VISIBLE : View.GONE);
 323             checkInsecureSchemeWithAuth();
 324         });
 325
 326         userName = context.findViewById(R.id.auth_user_name);
 327         model.observeUserName(viewLifecycleOwner, text -> {
 328             if (!Misc.equalStrings(text, userName.getText()))
 329                 userName.setText(text);
 330         });
 331         hookTextChangeSyncRoutine(userName, model::setAuthUserName);
 332         userNameLayout = context.findViewById(R.id.auth_user_name_layout);
 333
 334         password = context.findViewById(R.id.password);
 335         model.observePassword(viewLifecycleOwner, text -> {
 336             if (!Misc.equalStrings(text, password.getText()))
 337                 password.setText(text);
 338         });
 339         hookTextChangeSyncRoutine(password, model::setAuthPassword);
 340         passwordLayout = context.findViewById(R.id.password_layout);
 341
 342         huePickerView = context.findViewById(R.id.btn_pick_ring_color);
 343         model.observeThemeId(viewLifecycleOwner, themeId -> {
 344             final int hue = (themeId == -1) ? Colors.DEFAULT_HUE_DEG : themeId;
 345             final int profileColor = Colors.getPrimaryColorForHue(hue);
 346             huePickerView.setBackgroundColor(profileColor);
 347             huePickerView.setTag(hue);
 348         });
 349
 350         preferredAccountsFilter = context.findViewById(R.id.preferred_accounts_filter_filter);
 351         model.observePreferredAccountsFilter(viewLifecycleOwner, text -> {
 352             if (!Misc.equalStrings(text, preferredAccountsFilter.getText()))
 353                 preferredAccountsFilter.setText(text);
 354         });
 355         hookTextChangeSyncRoutine(preferredAccountsFilter, model::setPreferredAccountsFilter);
 356
 357         insecureWarningText = context.findViewById(R.id.insecure_scheme_text);
 358
 359         hookClearErrorOnFocusListener(profileName, profileNameLayout);
 360         hookClearErrorOnFocusListener(url, urlLayout);
 361         hookClearErrorOnFocusListener(userName, userNameLayout);
 362         hookClearErrorOnFocusListener(password, passwordLayout);
 363
 364         if (savedInstanceState == null) {
 365             model.setValuesFromProfile(mProfile, getArguments().getInt(ARG_HUE, -1));
 366         }
 367         checkInsecureSchemeWithAuth();
 368
 369         url.addTextChangedListener(new TextWatcher() {
 370             @Override
 371             public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
 372             @Override
 373             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 374             @Override
 375             public void afterTextChanged(Editable s) {
 376                 checkInsecureSchemeWithAuth();
 377             }
 378         });
 379
 380         huePickerView.setOnClickListener(v -> {
 381             HueRingDialog d = new HueRingDialog(ProfileDetailFragment.this.requireContext(),
 382                     model.initialThemeHue, (Integer) v.getTag());
 383             d.show();
 384             d.setColorSelectedListener(model::setThemeId);
 385         });
 386
 387         profileName.requestFocus();
 388     }
 389     private MobileLedgerProfile.FutureDates futureDatesSettingFromMenuItemId(int itemId) {
 390         switch (itemId) {
 391             case R.id.menu_future_dates_7:
 392                 return MobileLedgerProfile.FutureDates.OneWeek;
 393             case R.id.menu_future_dates_14:
 394                 return MobileLedgerProfile.FutureDates.TwoWeeks;
 395             case R.id.menu_future_dates_30:
 396                 return MobileLedgerProfile.FutureDates.OneMonth;
 397             case R.id.menu_future_dates_60:
 398                 return MobileLedgerProfile.FutureDates.TwoMonths;
 399             case R.id.menu_future_dates_90:
 400                 return MobileLedgerProfile.FutureDates.ThreeMonths;
 401             case R.id.menu_future_dates_180:
 402                 return MobileLedgerProfile.FutureDates.SixMonths;
 403             case R.id.menu_future_dates_365:
 404                 return MobileLedgerProfile.FutureDates.OneYear;
 405             case R.id.menu_future_dates_all:
 406                 return MobileLedgerProfile.FutureDates.All;
 407             default:
 408                 return MobileLedgerProfile.FutureDates.None;
 409         }
 410     }
 411     @NotNull
 412     private ProfileDetailModel getModel() {
 413         return new ViewModelProvider(requireActivity()).get(ProfileDetailModel.class);
 414     }
 415     private void onSaveFabClicked() {
 416         if (!checkValidity())
 417             return;
 418
 419         ProfileDetailModel model = getModel();
 420         final ArrayList<MobileLedgerProfile> profiles =
 421                 Objects.requireNonNull(Data.profiles.getValue());
 422
 423         if (mProfile != null) {
 424             int pos = Data.profiles.getValue()
 425                                    .indexOf(mProfile);
 426             mProfile = new MobileLedgerProfile(mProfile);
 427             model.updateProfile(mProfile);
 428             mProfile.storeInDB();
 429             debug("profiles", "profile stored in DB");
 430             profiles.set(pos, mProfile);
 431 //                debug("profiles", String.format("Selected item is %d", mProfile.getThemeHue()));
 432
 433             final MobileLedgerProfile currentProfile = Data.getProfile();
 434             if (mProfile.getUuid()
 435                         .equals(currentProfile.getUuid()))
 436             {
 437                 Data.setCurrentProfile(mProfile);
 438             }
 439
 440             ProfilesRecyclerViewAdapter viewAdapter = ProfilesRecyclerViewAdapter.getInstance();
 441             if (viewAdapter != null)
 442                 viewAdapter.notifyItemChanged(pos);
 443         }
 444         else {
 445             mProfile = new MobileLedgerProfile(String.valueOf(UUID.randomUUID()));
 446             model.updateProfile(mProfile);
 447             mProfile.storeInDB();
 448             final ArrayList<MobileLedgerProfile> newList = new ArrayList<>(profiles);
 449             newList.add(mProfile);
 450             Data.profiles.setValue(newList);
 451             MobileLedgerProfile.storeProfilesOrder();
 452
 453             // first profile ever?
 454             if (newList.size() == 1)
 455                 Data.setCurrentProfile(mProfile);
 456         }
 457
 458         Activity activity = getActivity();
 459         if (activity != null)
 460             activity.finish();
 461     }
 462     private boolean checkUrlValidity() {
 463         boolean valid = true;
 464
 465         ProfileDetailModel model = getModel();
 466
 467         String val = model.getUrl()
 468                           .trim();
 469         if (val.isEmpty()) {
 470             valid = false;
 471             urlLayout.setError(getResources().getText(R.string.err_profile_url_empty));
 472         }
 473         try {
 474             URL url = new URL(val);
 475             String host = url.getHost();
 476             if (host == null || host.isEmpty())
 477                 throw new MalformedURLException("Missing host");
 478             String protocol = url.getProtocol()
 479                                  .toUpperCase();
 480             if (!protocol.equals("HTTP") && !protocol.equals("HTTPS")) {
 481                 valid = false;
 482                 urlLayout.setError(getResources().getText(R.string.err_invalid_url));
 483             }
 484         }
 485         catch (MalformedURLException e) {
 486             valid = false;
 487             urlLayout.setError(getResources().getText(R.string.err_invalid_url));
 488         }
 489
 490         return valid;
 491     }
 492     private void checkInsecureSchemeWithAuth() {
 493         boolean showWarning = false;
 494
 495         final ProfileDetailModel model = getModel();
 496
 497         if (model.getUseAuthentication()) {
 498             String urlText = model.getUrl();
 499             if (urlText.startsWith("http") && !urlText.startsWith("https"))
 500                 showWarning = true;
 501         }
 502
 503         if (showWarning)
 504             insecureWarningText.setVisibility(View.VISIBLE);
 505         else
 506             insecureWarningText.setVisibility(View.GONE);
 507     }
 508     private void hookClearErrorOnFocusListener(TextView view, TextInputLayout layout) {
 509         view.setOnFocusChangeListener((v, hasFocus) -> {
 510             if (hasFocus)
 511                 layout.setError(null);
 512         });
 513         view.addTextChangedListener(new TextWatcher() {
 514             @Override
 515             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 516             }
 517             @Override
 518             public void onTextChanged(CharSequence s, int start, int before, int count) {
 519                 layout.setError(null);
 520             }
 521             @Override
 522             public void afterTextChanged(Editable s) {
 523             }
 524         });
 525     }
 526     private void syncModelFromUI() {
 527         if (syncingModelFromUI)
 528             return;
 529
 530         syncingModelFromUI = true;
 531
 532         try {
 533             ProfileDetailModel model = getModel();
 534
 535             model.setProfileName(profileName.getText());
 536             model.setUrl(url.getText());
 537             model.setPreferredAccountsFilter(preferredAccountsFilter.getText());
 538             model.setAuthUserName(userName.getText());
 539             model.setAuthPassword(password.getText());
 540         }
 541         finally {
 542             syncingModelFromUI = false;
 543         }
 544     }
 545     private boolean checkValidity() {
 546         boolean valid = true;
 547
 548         String val = String.valueOf(profileName.getText());
 549         if (val.trim()
 550                .isEmpty())
 551         {
 552             valid = false;
 553             profileNameLayout.setError(getResources().getText(R.string.err_profile_name_empty));
 554         }
 555
 556         if (!checkUrlValidity())
 557             valid = false;
 558
 559         if (useAuthentication.isChecked()) {
 560             val = String.valueOf(userName.getText());
 561             if (val.trim()
 562                    .isEmpty())
 563             {
 564                 valid = false;
 565                 userNameLayout.setError(
 566                         getResources().getText(R.string.err_profile_user_name_empty));
 567             }
 568
 569             val = String.valueOf(password.getText());
 570             if (val.trim()
 571                    .isEmpty())
 572             {
 573                 valid = false;
 574                 passwordLayout.setError(
 575                         getResources().getText(R.string.err_profile_password_empty));
 576             }
 577         }
 578
 579         return valid;
 580     }
 581     private void resetDefaultCommodity() {
 582         defaultCommoditySet = false;
 583         defaultCommodity.setText(R.string.btn_no_currency);
 584         defaultCommodity.setTypeface(defaultCommodity.getTypeface(), Typeface.ITALIC);
 585     }
 586     private void setDefaultCommodity(@NonNull @NotNull String name) {
 587         defaultCommoditySet = true;
 588         defaultCommodity.setText(name);
 589         defaultCommodity.setTypeface(Typeface.DEFAULT);
 590     }
 591     interface TextChangeSyncRoutine {
 592         void onTextChanged(String text);
 593     }
 594 }