app/src/main/java/net/ktnx/mobileledger/ui/activity/NewTransactionItemHolder.java

   1 /*
   2  * Copyright © 2019 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.activity;
  19
  20 import android.annotation.SuppressLint;
  21 import android.os.Build;
  22 import android.text.Editable;
  23 import android.text.TextWatcher;
  24 import android.text.method.DigitsKeyListener;
  25 import android.view.Gravity;
  26 import android.view.View;
  27 import android.view.ViewGroup;
  28 import android.view.inputmethod.EditorInfo;
  29 import android.widget.AutoCompleteTextView;
  30 import android.widget.EditText;
  31 import android.widget.FrameLayout;
  32 import android.widget.LinearLayout;
  33 import android.widget.TextView;
  34
  35 import androidx.annotation.NonNull;
  36 import androidx.appcompat.app.AppCompatActivity;
  37 import androidx.constraintlayout.widget.ConstraintLayout;
  38 import androidx.lifecycle.Observer;
  39 import androidx.recyclerview.widget.RecyclerView;
  40
  41 import net.ktnx.mobileledger.R;
  42 import net.ktnx.mobileledger.async.DescriptionSelectedCallback;
  43 import net.ktnx.mobileledger.model.Currency;
  44 import net.ktnx.mobileledger.model.Data;
  45 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
  46 import net.ktnx.mobileledger.model.MobileLedgerProfile;
  47 import net.ktnx.mobileledger.ui.CurrencySelectorFragment;
  48 import net.ktnx.mobileledger.ui.DatePickerFragment;
  49 import net.ktnx.mobileledger.ui.OnCurrencySelectedListener;
  50 import net.ktnx.mobileledger.ui.TextViewClearHelper;
  51 import net.ktnx.mobileledger.utils.Colors;
  52 import net.ktnx.mobileledger.utils.DimensionUtils;
  53 import net.ktnx.mobileledger.utils.Logger;
  54 import net.ktnx.mobileledger.utils.MLDB;
  55 import net.ktnx.mobileledger.utils.Misc;
  56
  57 import java.text.DecimalFormatSymbols;
  58 import java.util.Calendar;
  59 import java.util.Date;
  60 import java.util.GregorianCalendar;
  61 import java.util.Locale;
  62
  63 import static net.ktnx.mobileledger.ui.activity.NewTransactionModel.ItemType;
  64
  65 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  66         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback,
  67         OnCurrencySelectedListener {
  68     private final String decimalSeparator;
  69     private final String decimalDot;
  70     private final TextView tvCurrency;
  71     private NewTransactionModel.Item item;
  72     private TextView tvDate;
  73     private AutoCompleteTextView tvDescription;
  74     private AutoCompleteTextView tvAccount;
  75     private TextView tvComment;
  76     private EditText tvAmount;
  77     private LinearLayout lHead;
  78     private ViewGroup lAccount;
  79     private FrameLayout lPadding;
  80     private MobileLedgerProfile mProfile;
  81     private Date date;
  82     private Observer<Date> dateObserver;
  83     private Observer<String> descriptionObserver;
  84     private Observer<String> hintObserver;
  85     private Observer<Integer> focusedAccountObserver;
  86     private Observer<Integer> accountCountObserver;
  87     private Observer<Boolean> editableObserver;
  88     private Observer<Boolean> commentVisibleObserver;
  89     private Observer<String> commentObserver;
  90     private Observer<Currency.Position> currencyPositionObserver;
  91     private Observer<Boolean> currencyGapObserver;
  92     private Observer<Locale> localeObserver;
  93     private Observer<Currency> currencyObserver;
  94     private Observer<Boolean> showCurrencyObserver;
  95     private boolean inUpdate = false;
  96     private boolean syncingData = false;
  97     private View commentButton;
  98     private NewTransactionItemsAdapter adapter;
  99     //TODO multiple amounts with different currencies per posting
 100     NewTransactionItemHolder(@NonNull View itemView, NewTransactionItemsAdapter adapter) {
 101         super(itemView);
 102         this.adapter = adapter;
 103         tvAccount = itemView.findViewById(R.id.account_row_acc_name);
 104         tvComment = itemView.findViewById(R.id.comment);
 105         new TextViewClearHelper().attachToTextView((EditText) tvComment);
 106         commentButton = itemView.findViewById(R.id.comment_button);
 107         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
 108         tvCurrency = itemView.findViewById(R.id.currency);
 109         tvDate = itemView.findViewById(R.id.new_transaction_date);
 110         tvDescription = itemView.findViewById(R.id.new_transaction_description);
 111         lHead = itemView.findViewById(R.id.ntr_data);
 112         lAccount = itemView.findViewById(R.id.ntr_account);
 113         lPadding = itemView.findViewById(R.id.ntr_padding);
 114
 115         tvDescription.setNextFocusForwardId(View.NO_ID);
 116         tvAccount.setNextFocusForwardId(View.NO_ID);
 117         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 118
 119         tvDate.setOnClickListener(v -> pickTransactionDate());
 120
 121         mProfile = Data.profile.getValue();
 122         if (mProfile == null)
 123             throw new AssertionError();
 124
 125         View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
 126             if (hasFocus) {
 127                 boolean wasSyncing = syncingData;
 128                 syncingData = true;
 129                 try {
 130                     final int pos = getAdapterPosition();
 131                     adapter.updateFocusedItem(pos);
 132                     switch (v.getId()) {
 133                         case R.id.account_row_acc_name:
 134                             adapter.noteFocusIsOnAccount(pos);
 135                             break;
 136                         case R.id.account_row_acc_amounts:
 137                             adapter.noteFocusIsOnAmount(pos);
 138                             break;
 139                         case R.id.comment:
 140                             adapter.noteFocusIsOnComment(pos);
 141                             break;
 142                     }
 143                 }
 144                 finally {
 145                     syncingData = wasSyncing;
 146                 }
 147             }
 148         };
 149
 150         tvDescription.setOnFocusChangeListener(focusMonitor);
 151         tvAccount.setOnFocusChangeListener(focusMonitor);
 152         tvAmount.setOnFocusChangeListener(focusMonitor);
 153
 154         itemView.findViewById(R.id.comment_button)
 155                 .setOnClickListener(v -> {
 156                     final int pos = getAdapterPosition();
 157                     adapter.toggleComment(pos);
 158                 });
 159         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
 160                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
 161         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
 162                 "name", true, this, mProfile);
 163
 164         // FIXME: react on configuration (locale) changes
 165         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 166                                                               .getMonetaryDecimalSeparator());
 167         decimalDot = ".";
 168
 169         final TextWatcher tw = new TextWatcher() {
 170             @Override
 171             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 172             }
 173
 174             @Override
 175             public void onTextChanged(CharSequence s, int start, int before, int count) {
 176             }
 177
 178             @Override
 179             public void afterTextChanged(Editable s) {
 180 //                debug("input", "text changed");
 181                 if (inUpdate)
 182                     return;
 183
 184                 Logger.debug("textWatcher", "calling syncData()");
 185                 syncData();
 186                 Logger.debug("textWatcher",
 187                         "syncData() returned, checking if transaction is submittable");
 188                 adapter.model.checkTransactionSubmittable(adapter);
 189                 Logger.debug("textWatcher", "done");
 190             }
 191         };
 192         final TextWatcher amountWatcher = new TextWatcher() {
 193             @Override
 194             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 195                 Logger.debug("num",
 196                         String.format(Locale.US, "beforeTextChanged: start=%d, count=%d, after=%d",
 197                                 start, count, after));
 198             }
 199             @Override
 200             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 201             @Override
 202             public void afterTextChanged(Editable s) {
 203                 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
 204                     // only one decimal separator is allowed
 205                     // plus and minus are allowed only at the beginning
 206                     String allowed = "0123456789";
 207                     String val = s.toString();
 208                     Logger.debug("input", val);
 209                     if (val.isEmpty() || (tvAmount.getSelectionStart() == 0))
 210                         allowed += "-";
 211                     if (!val.contains(decimalSeparator) && !val.contains(decimalDot))
 212                         allowed += decimalSeparator + decimalDot;
 213
 214                     tvAmount.setKeyListener(DigitsKeyListener.getInstance(allowed));
 215                 }
 216
 217                 if (syncData())
 218                     adapter.model.checkTransactionSubmittable(adapter);
 219             }
 220         };
 221         tvDescription.addTextChangedListener(tw);
 222         tvAccount.addTextChangedListener(tw);
 223         tvComment.addTextChangedListener(tw);
 224         tvAmount.addTextChangedListener(amountWatcher);
 225
 226         tvCurrency.setOnClickListener(v -> {
 227             CurrencySelectorFragment cpf = new CurrencySelectorFragment();
 228             cpf.setOnCurrencySelectedListener(this);
 229             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 230             cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 231         });
 232
 233         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 234             tvAmount.setKeyListener(
 235                     DigitsKeyListener.getInstance(Data.locale.getValue(), true, true));
 236         else
 237             tvAmount.setKeyListener(
 238                     DigitsKeyListener.getInstance("0123456789+-" + decimalSeparator + decimalDot));
 239
 240         dateObserver = date -> {
 241             if (syncingData)
 242                 return;
 243             syncingData = true;
 244             try {
 245                 tvDate.setText(item.getFormattedDate());
 246             }
 247             finally {
 248                 syncingData = false;
 249             }
 250         };
 251         descriptionObserver = description -> {
 252             if (syncingData)
 253                 return;
 254             syncingData = true;
 255             try {
 256                 tvDescription.setText(description);
 257             }
 258             finally {
 259                 syncingData = false;
 260             }
 261         };
 262         hintObserver = hint -> {
 263             if (syncingData)
 264                 return;
 265             syncingData = true;
 266             try {
 267                 if (hint == null)
 268                     tvAmount.setHint(R.string.zero_amount);
 269                 else
 270                     tvAmount.setHint(hint);
 271             }
 272             finally {
 273                 syncingData = false;
 274             }
 275         };
 276         editableObserver = this::setEditable;
 277         commentVisibleObserver = this::setCommentVisible;
 278         commentObserver = this::setComment;
 279         focusedAccountObserver = index -> {
 280             if ((index != null) && index.equals(getAdapterPosition())) {
 281                 switch (item.getType()) {
 282                     case generalData:
 283                         // bad idea - double pop-up, and not really necessary.
 284                         // the user can tap the input to get the calendar
 285                         //if (!tvDate.hasFocus()) tvDate.requestFocus();
 286                         boolean focused = tvDescription.requestFocus();
 287                         tvDescription.dismissDropDown();
 288                         if (focused)
 289                             Misc.showSoftKeyboard(
 290                                     (NewTransactionActivity) tvDescription.getContext());
 291                         break;
 292                     case transactionRow:
 293                         // do nothing if a row element already has the focus
 294                         if (!itemView.hasFocus()) {
 295                             switch (item.getFocusedElement()) {
 296                                 case Amount:
 297                                     tvAmount.requestFocus();
 298                                     break;
 299                                 case Comment:
 300                                     tvComment.requestFocus();
 301                                     break;
 302                                 case Account:
 303                                     focused = tvAccount.requestFocus();
 304                                     tvAccount.dismissDropDown();
 305                                     if (focused)
 306                                         Misc.showSoftKeyboard(
 307                                                 (NewTransactionActivity) tvAccount.getContext());
 308                                     break;
 309                             }
 310                         }
 311
 312                         break;
 313                 }
 314             }
 315         };
 316         accountCountObserver = count -> {
 317             final int adapterPosition = getAdapterPosition();
 318             final int layoutPosition = getLayoutPosition();
 319             Logger.debug("holder",
 320                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 321                             adapterPosition, layoutPosition, item.getType()
 322                                                                  .toString()
 323                                                                  .concat(item.getType() ==
 324                                                                          ItemType.transactionRow
 325                                                                          ? String.format(Locale.US,
 326                                                                          "'%s'=%s",
 327                                                                          item.getAccount()
 328                                                                              .getAccountName(),
 329                                                                          item.getAccount()
 330                                                                              .isAmountSet()
 331                                                                          ? String.format(Locale.US,
 332                                                                                  "%.2f",
 333                                                                                  item.getAccount()
 334                                                                                      .getAmount())
 335                                                                          : "unset") : "")));
 336             if (adapterPosition == count)
 337                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 338             else
 339                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 340         };
 341
 342         localeObserver = locale -> {
 343             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 344                 tvAmount.setKeyListener(DigitsKeyListener.getInstance(locale, true, true));
 345         };
 346
 347         currencyObserver = currency -> {
 348             setCurrency(currency);
 349             adapter.model.checkTransactionSubmittable(adapter);
 350         };
 351
 352         currencyGapObserver = hasGap -> {
 353             updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(), hasGap);
 354         };
 355
 356         currencyPositionObserver = position -> {
 357             updateCurrencyPositionAndPadding(position, Data.currencyGap.getValue());
 358         };
 359
 360         showCurrencyObserver = showCurrency -> {
 361             if (showCurrency) {
 362                 tvCurrency.setVisibility(View.VISIBLE);
 363             }
 364             else {
 365                 tvCurrency.setVisibility(View.GONE);
 366                 item.setCurrency(null);
 367             }
 368         };
 369     }
 370     private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
 371         ConstraintLayout.LayoutParams amountLP =
 372                 (ConstraintLayout.LayoutParams) tvAmount.getLayoutParams();
 373         ConstraintLayout.LayoutParams currencyLP =
 374                 (ConstraintLayout.LayoutParams) tvCurrency.getLayoutParams();
 375
 376         if (position == Currency.Position.before) {
 377             currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 378             currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 379
 380             amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 381             amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
 382             amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 383             amountLP.startToEnd = tvCurrency.getId();
 384
 385             tvCurrency.setGravity(Gravity.END);
 386         }
 387         else {
 388             currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 389             currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 390
 391             amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 392             amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
 393             amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 394             amountLP.endToStart = tvCurrency.getId();
 395
 396             tvCurrency.setGravity(Gravity.START);
 397         }
 398
 399         amountLP.resolveLayoutDirection(tvAmount.getLayoutDirection());
 400         currencyLP.resolveLayoutDirection(tvCurrency.getLayoutDirection());
 401
 402         tvAmount.setLayoutParams(amountLP);
 403         tvCurrency.setLayoutParams(currencyLP);
 404
 405         // distance between the amount and the currency symbol
 406         int gapSize = DimensionUtils.sp2px(tvCurrency.getContext(), 5);
 407
 408         if (position == Currency.Position.before) {
 409             tvCurrency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
 410         }
 411         else {
 412             tvCurrency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
 413         }
 414     }
 415     private void setCurrencyString(String currency) {
 416         if ((currency == null) || currency.isEmpty()) {
 417             tvCurrency.setText(R.string.currency_symbol);
 418             tvCurrency.setTextColor(0x7f000000 + (0x00ffffff & Colors.defaultTextColor));
 419         }
 420         else {
 421             tvCurrency.setText(currency);
 422             tvCurrency.setTextColor(Colors.defaultTextColor);
 423         }
 424     }
 425     private void setCurrency(Currency currency) {
 426         setCurrencyString((currency == null) ? null : currency.getName());
 427     }
 428     private void setEditable(Boolean editable) {
 429         tvDate.setEnabled(editable);
 430         tvDescription.setEnabled(editable);
 431         tvAccount.setEnabled(editable);
 432         tvAmount.setEnabled(editable);
 433     }
 434     private void setCommentVisible(Boolean visible) {
 435         if (visible) {
 436             // showing; show the comment view and align the comment button to it
 437             tvComment.setVisibility(View.VISIBLE);
 438             tvComment.requestFocus();
 439             ConstraintLayout.LayoutParams lp =
 440                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 441             lp.bottomToBottom = R.id.comment;
 442
 443             commentButton.setLayoutParams(lp);
 444         }
 445         else {
 446             // hiding; hide the comment comment view and align amounts layout under it
 447             tvComment.setVisibility(View.GONE);
 448             ConstraintLayout.LayoutParams lp =
 449                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 450             lp.bottomToBottom = R.id.ntr_account;   // R.id.parent doesn't work here
 451
 452             commentButton.setLayoutParams(lp);
 453         }
 454     }
 455     private void setComment(String comment) {
 456         if ((comment != null) && !comment.isEmpty())
 457             commentButton.setBackgroundResource(R.drawable.ic_comment_black_24dp);
 458         else
 459             commentButton.setBackgroundResource(R.drawable.ic_comment_gray_24dp);
 460     }
 461     private void beginUpdates() {
 462         if (inUpdate)
 463             throw new RuntimeException("Already in update mode");
 464         inUpdate = true;
 465     }
 466     private void endUpdates() {
 467         if (!inUpdate)
 468             throw new RuntimeException("Not in update mode");
 469         inUpdate = false;
 470     }
 471     /**
 472      * syncData()
 473      * <p>
 474      * Stores the data from the UI elements into the model item
 475      * Returns true if there were changes made that suggest transaction has to be
 476      * checked for being submittable
 477      */
 478     private boolean syncData() {
 479         if (item == null)
 480             return false;
 481
 482         if (syncingData) {
 483             Logger.debug("new-trans", "skipping syncData() loop");
 484             return false;
 485         }
 486
 487         syncingData = true;
 488
 489         try {
 490             switch (item.getType()) {
 491                 case generalData:
 492                     item.setDate(String.valueOf(tvDate.getText()));
 493                     item.setDescription(String.valueOf(tvDescription.getText()));
 494                     break;
 495                 case transactionRow:
 496                     final LedgerTransactionAccount account = item.getAccount();
 497                     account.setAccountName(String.valueOf(tvAccount.getText()));
 498
 499                     item.setComment(String.valueOf(tvComment.getText()));
 500
 501                     String amount = String.valueOf(tvAmount.getText());
 502                     amount = amount.trim();
 503
 504                     if (amount.isEmpty()) {
 505                         account.resetAmount();
 506 //                        account.setCurrency(null);
 507                     }
 508                     else {
 509                         try {
 510                             amount = amount.replace(decimalSeparator, decimalDot);
 511                             account.setAmount(Float.parseFloat(amount));
 512                         }
 513                         catch (NumberFormatException e) {
 514                             Logger.debug("new-trans", String.format(
 515                                     "assuming amount is not set due to number format exception. " +
 516                                     "input was '%s'", amount));
 517                             account.resetAmount();
 518                         }
 519                         final String curr = String.valueOf(tvCurrency.getText());
 520                         if (curr.equals(tvCurrency.getContext()
 521                                                   .getResources()
 522                                                   .getString(R.string.currency_symbol)) ||
 523                             curr.isEmpty())
 524                             account.setCurrency(null);
 525                         else
 526                             account.setCurrency(curr);
 527                     }
 528
 529                     break;
 530                 case bottomFiller:
 531                     throw new RuntimeException("Should not happen");
 532             }
 533
 534             return true;
 535         }
 536         finally {
 537             syncingData = false;
 538         }
 539     }
 540     private void pickTransactionDate() {
 541         DatePickerFragment picker = new DatePickerFragment();
 542         picker.setFutureDates(mProfile.getFutureDates());
 543         picker.setOnDatePickedListener(this);
 544         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 545                 "datePicker");
 546     }
 547     /**
 548      * setData
 549      *
 550      * @param item updates the UI elements with the data from the model item
 551      */
 552     @SuppressLint("DefaultLocale")
 553     public void setData(NewTransactionModel.Item item) {
 554         beginUpdates();
 555         try {
 556             if (this.item != null && !this.item.equals(item)) {
 557                 this.item.stopObservingDate(dateObserver);
 558                 this.item.stopObservingDescription(descriptionObserver);
 559                 this.item.stopObservingAmountHint(hintObserver);
 560                 this.item.stopObservingEditableFlag(editableObserver);
 561                 this.item.stopObservingCommentVisible(commentVisibleObserver);
 562                 this.item.stopObservingComment(commentObserver);
 563                 this.item.getModel()
 564                          .stopObservingFocusedItem(focusedAccountObserver);
 565                 this.item.getModel()
 566                          .stopObservingAccountCount(accountCountObserver);
 567                 Data.currencySymbolPosition.removeObserver(currencyPositionObserver);
 568                 Data.currencyGap.removeObserver(currencyGapObserver);
 569                 Data.locale.removeObserver(localeObserver);
 570                 this.item.stopObservingCurrency(currencyObserver);
 571                 this.item.getModel().showCurrency.removeObserver(showCurrencyObserver);
 572
 573                 this.item = null;
 574             }
 575
 576             switch (item.getType()) {
 577                 case generalData:
 578                     tvDate.setText(item.getFormattedDate());
 579                     tvDescription.setText(item.getDescription());
 580                     lHead.setVisibility(View.VISIBLE);
 581                     lAccount.setVisibility(View.GONE);
 582                     lPadding.setVisibility(View.GONE);
 583                     setEditable(true);
 584                     break;
 585                 case transactionRow:
 586                     LedgerTransactionAccount acc = item.getAccount();
 587                     tvAccount.setText(acc.getAccountName());
 588                     tvComment.setText(acc.getComment());
 589                     if (acc.isAmountSet()) {
 590                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 591                     }
 592                     else {
 593                         tvAmount.setText("");
 594 //                        tvAmount.setHint(R.string.zero_amount);
 595                     }
 596                     tvAmount.setHint(item.getAmountHint());
 597                     setCurrencyString(acc.getCurrency());
 598                     lHead.setVisibility(View.GONE);
 599                     lAccount.setVisibility(View.VISIBLE);
 600                     lPadding.setVisibility(View.GONE);
 601                     setEditable(true);
 602                     break;
 603                 case bottomFiller:
 604                     lHead.setVisibility(View.GONE);
 605                     lAccount.setVisibility(View.GONE);
 606                     lPadding.setVisibility(View.VISIBLE);
 607                     setEditable(false);
 608                     break;
 609             }
 610             if (this.item == null) { // was null or has changed
 611                 this.item = item;
 612                 final NewTransactionActivity activity =
 613                         (NewTransactionActivity) tvDescription.getContext();
 614
 615                 if (!item.isOfType(ItemType.bottomFiller)) {
 616                     item.observeEditableFlag(activity, editableObserver);
 617                     item.getModel()
 618                         .observeFocusedItem(activity, focusedAccountObserver);
 619                 }
 620                 switch (item.getType()) {
 621                     case generalData:
 622                         item.observeDate(activity, dateObserver);
 623                         item.observeDescription(activity, descriptionObserver);
 624                         break;
 625                     case transactionRow:
 626                         item.observeAmountHint(activity, hintObserver);
 627                         item.observeCommentVisible(activity, commentVisibleObserver);
 628                         item.observeComment(activity, commentObserver);
 629                         Data.currencySymbolPosition.observe(activity, currencyPositionObserver);
 630                         Data.currencyGap.observe(activity, currencyGapObserver);
 631                         Data.locale.observe(activity, localeObserver);
 632                         item.observeCurrency(activity, currencyObserver);
 633                         item.getModel().showCurrency.observe(activity, showCurrencyObserver);
 634                         item.getModel()
 635                             .observeAccountCount(activity, accountCountObserver);
 636                         break;
 637                 }
 638             }
 639         }
 640         finally {
 641             endUpdates();
 642         }
 643     }
 644     @Override
 645     public void onDatePicked(int year, int month, int day) {
 646         final Calendar c = GregorianCalendar.getInstance();
 647         c.set(year, month, day);
 648         item.setDate(c.getTime());
 649         boolean focused = tvDescription.requestFocus();
 650         if (focused)
 651             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 652
 653     }
 654     @Override
 655     public void onCurrencySelected(Currency currency) {
 656         adapter.model.setItemCurrency(this.item, currency, adapter);
 657     }
 658     @Override
 659     public void descriptionSelected(String description) {
 660         tvAccount.setText(description);
 661         tvAmount.requestFocus(View.FOCUS_FORWARD);
 662     }
 663 }