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.graphics.Typeface;
  22 import android.os.Build;
  23 import android.text.Editable;
  24 import android.text.TextWatcher;
  25 import android.text.method.DigitsKeyListener;
  26 import android.view.Gravity;
  27 import android.view.View;
  28 import android.view.ViewGroup;
  29 import android.view.inputmethod.EditorInfo;
  30 import android.widget.AutoCompleteTextView;
  31 import android.widget.EditText;
  32 import android.widget.FrameLayout;
  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.TextViewClearHelper;
  50 import net.ktnx.mobileledger.utils.Colors;
  51 import net.ktnx.mobileledger.utils.DimensionUtils;
  52 import net.ktnx.mobileledger.utils.Logger;
  53 import net.ktnx.mobileledger.utils.MLDB;
  54 import net.ktnx.mobileledger.utils.Misc;
  55
  56 import org.jetbrains.annotations.NotNull;
  57
  58 import java.text.DecimalFormatSymbols;
  59 import java.util.Calendar;
  60 import java.util.Date;
  61 import java.util.GregorianCalendar;
  62 import java.util.Locale;
  63
  64 import static net.ktnx.mobileledger.ui.activity.NewTransactionModel.ItemType;
  65
  66 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  67         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
  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 ViewGroup 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<Currency.Position> currencyPositionObserver;
  89     private Observer<Boolean> currencyGapObserver;
  90     private Observer<Locale> localeObserver;
  91     private Observer<Currency> currencyObserver;
  92     private Observer<Boolean> showCurrencyObserver;
  93     private Observer<String> commentObserver;
  94     private boolean inUpdate = false;
  95     private boolean syncingData = false;
  96     private View commentButton;
  97     //TODO multiple amounts with different currencies per posting
  98     NewTransactionItemHolder(@NonNull View itemView, NewTransactionItemsAdapter adapter) {
  99         super(itemView);
 100         tvAccount = itemView.findViewById(R.id.account_row_acc_name);
 101         tvComment = itemView.findViewById(R.id.comment);
 102         new TextViewClearHelper().attachToTextView((EditText) tvComment);
 103         commentButton = itemView.findViewById(R.id.comment_button);
 104         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
 105         tvCurrency = itemView.findViewById(R.id.currency);
 106         tvDate = itemView.findViewById(R.id.new_transaction_date);
 107         tvDescription = itemView.findViewById(R.id.new_transaction_description);
 108         lHead = itemView.findViewById(R.id.ntr_data);
 109         lAccount = itemView.findViewById(R.id.ntr_account);
 110         lPadding = itemView.findViewById(R.id.ntr_padding);
 111         View commentLayout = itemView.findViewById(R.id.comment_layout);
 112
 113         tvDescription.setNextFocusForwardId(View.NO_ID);
 114         tvAccount.setNextFocusForwardId(View.NO_ID);
 115         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 116
 117         tvDate.setOnClickListener(v -> pickTransactionDate());
 118
 119         itemView.findViewById(R.id.comment_button)
 120                 .setOnClickListener(v -> {
 121                     tvComment.setVisibility(View.VISIBLE);
 122                     tvComment.requestFocus();
 123                 });
 124
 125         mProfile = Data.profile.getValue();
 126         if (mProfile == null)
 127             throw new AssertionError();
 128
 129         View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
 130             final int id = v.getId();
 131             if (hasFocus) {
 132                 boolean wasSyncing = syncingData;
 133                 syncingData = true;
 134                 try {
 135                     final int pos = getAdapterPosition();
 136                     adapter.updateFocusedItem(pos);
 137                     switch (id) {
 138                         case R.id.account_row_acc_name:
 139                             adapter.noteFocusIsOnAccount(pos);
 140                             break;
 141                         case R.id.account_row_acc_amounts:
 142                             adapter.noteFocusIsOnAmount(pos);
 143                             break;
 144                         case R.id.comment:
 145                             adapter.noteFocusIsOnComment(pos);
 146                             break;
 147                     }
 148                 }
 149                 finally {
 150                     syncingData = wasSyncing;
 151                 }
 152             }
 153
 154             if (id == R.id.comment) {
 155                 commentLayout.setAlpha(hasFocus ? 1f : 0.5f);
 156                 tvComment.setTypeface(null, hasFocus ? Typeface.NORMAL : Typeface.ITALIC);
 157                 if (hasFocus)
 158                     tvComment.setHint(R.string.transaction_account_comment_hint);
 159                 else
 160                     tvComment.setHint("");
 161
 162                 if (!hasFocus && Misc.isEmptyOrNull(tvComment.getText()))
 163                     tvComment.setVisibility(View.INVISIBLE);
 164             }
 165         };
 166
 167         tvDescription.setOnFocusChangeListener(focusMonitor);
 168         tvAccount.setOnFocusChangeListener(focusMonitor);
 169         tvAmount.setOnFocusChangeListener(focusMonitor);
 170         tvComment.setOnFocusChangeListener(focusMonitor);
 171
 172         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
 173                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
 174         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
 175                 "name", true, this, mProfile);
 176
 177         // FIXME: react on configuration (locale) changes
 178         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 179                                                               .getMonetaryDecimalSeparator());
 180         decimalDot = ".";
 181
 182         final TextWatcher tw = new TextWatcher() {
 183             @Override
 184             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 185             }
 186
 187             @Override
 188             public void onTextChanged(CharSequence s, int start, int before, int count) {
 189             }
 190
 191             @Override
 192             public void afterTextChanged(Editable s) {
 193 //                debug("input", "text changed");
 194                 if (inUpdate)
 195                     return;
 196
 197                 Logger.debug("textWatcher", "calling syncData()");
 198                 syncData();
 199                 Logger.debug("textWatcher",
 200                         "syncData() returned, checking if transaction is submittable");
 201                 adapter.checkTransactionSubmittable();
 202                 Logger.debug("textWatcher", "done");
 203             }
 204         };
 205         final TextWatcher amountWatcher = new TextWatcher() {
 206             @Override
 207             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 208                 Logger.debug("num",
 209                         String.format(Locale.US, "beforeTextChanged: start=%d, count=%d, after=%d",
 210                                 start, count, after));
 211             }
 212             @Override
 213             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 214             @Override
 215             public void afterTextChanged(Editable s) {
 216                 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
 217                     // only one decimal separator is allowed
 218                     // plus and minus are allowed only at the beginning
 219                     String allowed = "0123456789";
 220                     String val = s.toString();
 221                     Logger.debug("input", val);
 222                     if (val.isEmpty() || (tvAmount.getSelectionStart() == 0))
 223                         allowed += "-";
 224                     if (!val.contains(decimalSeparator) && !val.contains(decimalDot))
 225                         allowed += decimalSeparator + decimalDot;
 226
 227                     tvAmount.setKeyListener(DigitsKeyListener.getInstance(allowed));
 228                 }
 229
 230                 if (syncData())
 231                     adapter.checkTransactionSubmittable();
 232             }
 233         };
 234         tvDescription.addTextChangedListener(tw);
 235         tvAccount.addTextChangedListener(tw);
 236         tvComment.addTextChangedListener(tw);
 237         tvAmount.addTextChangedListener(amountWatcher);
 238
 239         tvCurrency.setOnClickListener(v -> {
 240             CurrencySelectorFragment cpf = new CurrencySelectorFragment();
 241             cpf.showPositionAndPadding();
 242             cpf.setOnCurrencySelectedListener(c -> item.setCurrency(c));
 243             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 244             cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 245         });
 246
 247         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 248             tvAmount.setKeyListener(
 249                     DigitsKeyListener.getInstance(Data.locale.getValue(), true, true));
 250         else
 251             tvAmount.setKeyListener(
 252                     DigitsKeyListener.getInstance("0123456789+-" + decimalSeparator + decimalDot));
 253
 254         dateObserver = date -> {
 255             if (syncingData)
 256                 return;
 257             syncingData = true;
 258             try {
 259                 tvDate.setText(item.getFormattedDate());
 260             }
 261             finally {
 262                 syncingData = false;
 263             }
 264         };
 265         descriptionObserver = description -> {
 266             if (syncingData)
 267                 return;
 268             syncingData = true;
 269             try {
 270                 tvDescription.setText(description);
 271             }
 272             finally {
 273                 syncingData = false;
 274             }
 275         };
 276         hintObserver = hint -> {
 277             if (syncingData)
 278                 return;
 279             syncingData = true;
 280             try {
 281                 if (hint == null)
 282                     tvAmount.setHint(R.string.zero_amount);
 283                 else
 284                     tvAmount.setHint(hint);
 285             }
 286             finally {
 287                 syncingData = false;
 288             }
 289         };
 290         editableObserver = this::setEditable;
 291         focusedAccountObserver = index -> {
 292             if ((index != null) && index.equals(getAdapterPosition())) {
 293                 switch (item.getType()) {
 294                     case generalData:
 295                         // bad idea - double pop-up, and not really necessary.
 296                         // the user can tap the input to get the calendar
 297                         //if (!tvDate.hasFocus()) tvDate.requestFocus();
 298                         boolean focused = tvDescription.requestFocus();
 299                         tvDescription.dismissDropDown();
 300                         if (focused)
 301                             Misc.showSoftKeyboard(
 302                                     (NewTransactionActivity) tvDescription.getContext());
 303                         break;
 304                     case transactionRow:
 305                         // do nothing if a row element already has the focus
 306                         if (!itemView.hasFocus()) {
 307                             switch (item.getFocusedElement()) {
 308                                 case Amount:
 309                                     tvAmount.requestFocus();
 310                                     break;
 311                                 case Comment:
 312                                     tvComment.setVisibility(View.VISIBLE);
 313                                     tvComment.requestFocus();
 314                                     break;
 315                                 case Account:
 316                                     focused = tvAccount.requestFocus();
 317                                     tvAccount.dismissDropDown();
 318                                     if (focused)
 319                                         Misc.showSoftKeyboard(
 320                                                 (NewTransactionActivity) tvAccount.getContext());
 321                                     break;
 322                             }
 323                         }
 324
 325                         break;
 326                 }
 327             }
 328         };
 329         accountCountObserver = count -> {
 330             final int adapterPosition = getAdapterPosition();
 331             final int layoutPosition = getLayoutPosition();
 332             Logger.debug("holder",
 333                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 334                             adapterPosition, layoutPosition, item.getType()
 335                                                                  .toString()
 336                                                                  .concat(item.getType() ==
 337                                                                          ItemType.transactionRow
 338                                                                          ? String.format(Locale.US,
 339                                                                          "'%s'=%s",
 340                                                                          item.getAccount()
 341                                                                              .getAccountName(),
 342                                                                          item.getAccount()
 343                                                                              .isAmountSet()
 344                                                                          ? String.format(Locale.US,
 345                                                                                  "%.2f",
 346                                                                                  item.getAccount()
 347                                                                                      .getAmount())
 348                                                                          : "unset") : "")));
 349             if (adapterPosition == count)
 350                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 351             else
 352                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 353         };
 354
 355         localeObserver = locale -> {
 356             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 357                 tvAmount.setKeyListener(DigitsKeyListener.getInstance(locale, true, true));
 358         };
 359
 360         currencyObserver = currency -> {
 361             setCurrency(currency);
 362             adapter.checkTransactionSubmittable();
 363         };
 364
 365         currencyGapObserver =
 366                 hasGap -> updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(),
 367                         hasGap);
 368
 369         currencyPositionObserver =
 370                 position -> updateCurrencyPositionAndPadding(position, Data.currencyGap.getValue());
 371
 372         showCurrencyObserver = showCurrency -> {
 373             if (showCurrency) {
 374                 tvCurrency.setVisibility(View.VISIBLE);
 375             }
 376             else {
 377                 tvCurrency.setVisibility(View.GONE);
 378                 item.setCurrency(null);
 379             }
 380         };
 381
 382         commentObserver = comment -> {
 383             final View focusedView = tvComment.findFocus();
 384             tvComment.setTypeface(null,
 385                     (focusedView == tvComment) ? Typeface.NORMAL : Typeface.ITALIC);
 386             tvComment.setVisibility(
 387                     ((focusedView != tvComment) && Misc.isEmptyOrNull(comment)) ? View.INVISIBLE
 388                                                                                 : View.VISIBLE);
 389         };
 390     }
 391     private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
 392         ConstraintLayout.LayoutParams amountLP =
 393                 (ConstraintLayout.LayoutParams) tvAmount.getLayoutParams();
 394         ConstraintLayout.LayoutParams currencyLP =
 395                 (ConstraintLayout.LayoutParams) tvCurrency.getLayoutParams();
 396
 397         if (position == Currency.Position.before) {
 398             currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 399             currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 400
 401             amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 402             amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
 403             amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 404             amountLP.startToEnd = tvCurrency.getId();
 405
 406             tvCurrency.setGravity(Gravity.END);
 407         }
 408         else {
 409             currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 410             currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 411
 412             amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 413             amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
 414             amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 415             amountLP.endToStart = tvCurrency.getId();
 416
 417             tvCurrency.setGravity(Gravity.START);
 418         }
 419
 420         amountLP.resolveLayoutDirection(tvAmount.getLayoutDirection());
 421         currencyLP.resolveLayoutDirection(tvCurrency.getLayoutDirection());
 422
 423         tvAmount.setLayoutParams(amountLP);
 424         tvCurrency.setLayoutParams(currencyLP);
 425
 426         // distance between the amount and the currency symbol
 427         int gapSize = DimensionUtils.sp2px(tvCurrency.getContext(), 5);
 428
 429         if (position == Currency.Position.before) {
 430             tvCurrency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
 431         }
 432         else {
 433             tvCurrency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
 434         }
 435     }
 436     private void setCurrencyString(String currency) {
 437         if ((currency == null) || currency.isEmpty()) {
 438             tvCurrency.setText(R.string.currency_symbol);
 439             tvCurrency.setTextColor(0x7f000000 + (0x00ffffff & Colors.defaultTextColor));
 440         }
 441         else {
 442             tvCurrency.setText(currency);
 443             tvCurrency.setTextColor(Colors.defaultTextColor);
 444         }
 445     }
 446     private void setCurrency(Currency currency) {
 447         setCurrencyString((currency == null) ? null : currency.getName());
 448     }
 449     private void setEditable(Boolean editable) {
 450         tvDate.setEnabled(editable);
 451         tvDescription.setEnabled(editable);
 452         tvAccount.setEnabled(editable);
 453         tvAmount.setEnabled(editable);
 454     }
 455     private void setCommentVisible(@NotNull Boolean visible) {
 456         if (visible) {
 457             // showing; show the comment view and align the comment button to it
 458             tvComment.setVisibility(View.VISIBLE);
 459             tvComment.requestFocus();
 460             ConstraintLayout.LayoutParams lp =
 461                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 462             lp.bottomToBottom = R.id.comment;
 463
 464             commentButton.setLayoutParams(lp);
 465         }
 466         else {
 467             // hiding; hide the comment view and align the comment bottom to the amount
 468             tvComment.setVisibility(View.GONE);
 469             ConstraintLayout.LayoutParams lp =
 470                     (ConstraintLayout.LayoutParams) commentButton.getLayoutParams();
 471             lp.bottomToBottom = R.id.amount_layout;   // R.id.parent doesn't work here
 472
 473             commentButton.setLayoutParams(lp);
 474         }
 475     }
 476     private void beginUpdates() {
 477         if (inUpdate)
 478             throw new RuntimeException("Already in update mode");
 479         inUpdate = true;
 480     }
 481     private void endUpdates() {
 482         if (!inUpdate)
 483             throw new RuntimeException("Not in update mode");
 484         inUpdate = false;
 485     }
 486     /**
 487      * syncData()
 488      * <p>
 489      * Stores the data from the UI elements into the model item
 490      * Returns true if there were changes made that suggest transaction has to be
 491      * checked for being submittable
 492      */
 493     private boolean syncData() {
 494         if (item == null)
 495             return false;
 496
 497         if (syncingData) {
 498             Logger.debug("new-trans", "skipping syncData() loop");
 499             return false;
 500         }
 501
 502         syncingData = true;
 503
 504         try {
 505             switch (item.getType()) {
 506                 case generalData:
 507                     item.setDate(String.valueOf(tvDate.getText()));
 508                     item.setDescription(String.valueOf(tvDescription.getText()));
 509                     break;
 510                 case transactionRow:
 511                     final LedgerTransactionAccount account = item.getAccount();
 512                     account.setAccountName(String.valueOf(tvAccount.getText()));
 513
 514                     item.setComment(String.valueOf(tvComment.getText()));
 515
 516                     String amount = String.valueOf(tvAmount.getText());
 517                     amount = amount.trim();
 518
 519                     if (amount.isEmpty()) {
 520                         account.resetAmount();
 521 //                        account.setCurrency(null);
 522                     }
 523                     else {
 524                         try {
 525                             amount = amount.replace(decimalSeparator, decimalDot);
 526                             account.setAmount(Float.parseFloat(amount));
 527                         }
 528                         catch (NumberFormatException e) {
 529                             Logger.debug("new-trans", String.format(
 530                                     "assuming amount is not set due to number format exception. " +
 531                                     "input was '%s'", amount));
 532                             account.resetAmount();
 533                         }
 534                         final String curr = String.valueOf(tvCurrency.getText());
 535                         if (curr.equals(tvCurrency.getContext()
 536                                                   .getResources()
 537                                                   .getString(R.string.currency_symbol)) ||
 538                             curr.isEmpty())
 539                             account.setCurrency(null);
 540                         else
 541                             account.setCurrency(curr);
 542                     }
 543
 544                     break;
 545                 case bottomFiller:
 546                     throw new RuntimeException("Should not happen");
 547             }
 548
 549             return true;
 550         }
 551         finally {
 552             syncingData = false;
 553         }
 554     }
 555     private void pickTransactionDate() {
 556         DatePickerFragment picker = new DatePickerFragment();
 557         picker.setFutureDates(mProfile.getFutureDates());
 558         picker.setOnDatePickedListener(this);
 559         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 560                 "datePicker");
 561     }
 562     /**
 563      * setData
 564      *
 565      * @param item updates the UI elements with the data from the model item
 566      */
 567     @SuppressLint("DefaultLocale")
 568     public void setData(NewTransactionModel.Item item) {
 569         beginUpdates();
 570         try {
 571             if (this.item != null && !this.item.equals(item)) {
 572                 this.item.stopObservingDate(dateObserver);
 573                 this.item.stopObservingDescription(descriptionObserver);
 574                 this.item.stopObservingAmountHint(hintObserver);
 575                 this.item.stopObservingEditableFlag(editableObserver);
 576                 this.item.getModel()
 577                          .stopObservingFocusedItem(focusedAccountObserver);
 578                 this.item.getModel()
 579                          .stopObservingAccountCount(accountCountObserver);
 580                 Data.currencySymbolPosition.removeObserver(currencyPositionObserver);
 581                 Data.currencyGap.removeObserver(currencyGapObserver);
 582                 Data.locale.removeObserver(localeObserver);
 583                 this.item.stopObservingCurrency(currencyObserver);
 584                 this.item.getModel().showCurrency.removeObserver(showCurrencyObserver);
 585                 this.item.stopObservingComment(commentObserver);
 586
 587                 this.item = null;
 588             }
 589
 590             switch (item.getType()) {
 591                 case generalData:
 592                     tvDate.setText(item.getFormattedDate());
 593                     tvDescription.setText(item.getDescription());
 594                     lHead.setVisibility(View.VISIBLE);
 595                     lAccount.setVisibility(View.GONE);
 596                     lPadding.setVisibility(View.GONE);
 597                     setEditable(true);
 598                     break;
 599                 case transactionRow:
 600                     LedgerTransactionAccount acc = item.getAccount();
 601                     tvAccount.setText(acc.getAccountName());
 602                     tvComment.setText(acc.getComment());
 603                     if (acc.isAmountSet()) {
 604                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 605                     }
 606                     else {
 607                         tvAmount.setText("");
 608 //                        tvAmount.setHint(R.string.zero_amount);
 609                     }
 610                     tvAmount.setHint(item.getAmountHint());
 611                     setCurrencyString(acc.getCurrency());
 612                     lHead.setVisibility(View.GONE);
 613                     lAccount.setVisibility(View.VISIBLE);
 614                     lPadding.setVisibility(View.GONE);
 615                     setEditable(true);
 616                     break;
 617                 case bottomFiller:
 618                     lHead.setVisibility(View.GONE);
 619                     lAccount.setVisibility(View.GONE);
 620                     lPadding.setVisibility(View.VISIBLE);
 621                     setEditable(false);
 622                     break;
 623             }
 624             if (this.item == null) { // was null or has changed
 625                 this.item = item;
 626                 final NewTransactionActivity activity =
 627                         (NewTransactionActivity) tvDescription.getContext();
 628
 629                 if (!item.isOfType(ItemType.bottomFiller)) {
 630                     item.observeEditableFlag(activity, editableObserver);
 631                     item.getModel()
 632                         .observeFocusedItem(activity, focusedAccountObserver);
 633                 }
 634                 switch (item.getType()) {
 635                     case generalData:
 636                         item.observeDate(activity, dateObserver);
 637                         item.observeDescription(activity, descriptionObserver);
 638                         break;
 639                     case transactionRow:
 640                         item.observeAmountHint(activity, hintObserver);
 641                         Data.currencySymbolPosition.observe(activity, currencyPositionObserver);
 642                         Data.currencyGap.observe(activity, currencyGapObserver);
 643                         Data.locale.observe(activity, localeObserver);
 644                         item.observeCurrency(activity, currencyObserver);
 645                         item.getModel().showCurrency.observe(activity, showCurrencyObserver);
 646                         item.observeComment(activity, commentObserver);
 647                         item.getModel()
 648                             .observeAccountCount(activity, accountCountObserver);
 649                         break;
 650                 }
 651             }
 652         }
 653         finally {
 654             endUpdates();
 655         }
 656     }
 657     @Override
 658     public void onDatePicked(int year, int month, int day) {
 659         final Calendar c = GregorianCalendar.getInstance();
 660         c.set(year, month, day);
 661         item.setDate(c.getTime());
 662         boolean focused = tvDescription.requestFocus();
 663         if (focused)
 664             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 665
 666     }
 667     @Override
 668     public void descriptionSelected(String description) {
 669         tvAccount.setText(description);
 670         tvAmount.requestFocus(View.FOCUS_FORWARD);
 671     }
 672 }