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 java.text.DecimalFormatSymbols;
  57 import java.util.Calendar;
  58 import java.util.Date;
  59 import java.util.GregorianCalendar;
  60 import java.util.Locale;
  61
  62 import static net.ktnx.mobileledger.ui.activity.NewTransactionModel.ItemType;
  63
  64 class NewTransactionItemHolder extends RecyclerView.ViewHolder
  65         implements DatePickerFragment.DatePickedListener, DescriptionSelectedCallback {
  66     private final String decimalSeparator;
  67     private final String decimalDot;
  68     private final TextView tvCurrency;
  69     private final Observer<Boolean> showCommentsObserver;
  70     private final TextView tvTransactionComment;
  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         tvTransactionComment = itemView.findViewById(R.id.transaction_comment);
 103         new TextViewClearHelper().attachToTextView((EditText) tvComment);
 104         commentButton = itemView.findViewById(R.id.comment_button);
 105         tvAmount = itemView.findViewById(R.id.account_row_acc_amounts);
 106         tvCurrency = itemView.findViewById(R.id.currency);
 107         tvDate = itemView.findViewById(R.id.new_transaction_date);
 108         tvDescription = itemView.findViewById(R.id.new_transaction_description);
 109         lHead = itemView.findViewById(R.id.ntr_data);
 110         lAccount = itemView.findViewById(R.id.ntr_account);
 111         lPadding = itemView.findViewById(R.id.ntr_padding);
 112         final View commentLayout = itemView.findViewById(R.id.comment_layout);
 113         final View transactionCommentLayout =
 114                 itemView.findViewById(R.id.transaction_comment_layout);
 115
 116         tvDescription.setNextFocusForwardId(View.NO_ID);
 117         tvAccount.setNextFocusForwardId(View.NO_ID);
 118         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 119
 120         tvDate.setOnClickListener(v -> pickTransactionDate());
 121
 122         commentButton.setOnClickListener(v -> {
 123             tvComment.setVisibility(View.VISIBLE);
 124             tvComment.requestFocus();
 125         });
 126
 127         itemView.findViewById(R.id.transaction_comment_button)
 128                 .setOnClickListener(v -> {
 129                     tvTransactionComment.setVisibility(View.VISIBLE);
 130                     tvTransactionComment.requestFocus();
 131                 });
 132
 133         mProfile = Data.profile.getValue();
 134         if (mProfile == null)
 135             throw new AssertionError();
 136
 137         View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
 138             final int id = v.getId();
 139             if (hasFocus) {
 140                 boolean wasSyncing = syncingData;
 141                 syncingData = true;
 142                 try {
 143                     final int pos = getAdapterPosition();
 144                     adapter.updateFocusedItem(pos);
 145                     switch (id) {
 146                         case R.id.account_row_acc_name:
 147                             adapter.noteFocusIsOnAccount(pos);
 148                             break;
 149                         case R.id.account_row_acc_amounts:
 150                             adapter.noteFocusIsOnAmount(pos);
 151                             break;
 152                         case R.id.comment:
 153                             adapter.noteFocusIsOnComment(pos);
 154                             break;
 155                     }
 156                 }
 157                 finally {
 158                     syncingData = wasSyncing;
 159                 }
 160             }
 161
 162             if (id == R.id.comment) {
 163                 commentFocusChanged(commentLayout, tvComment, hasFocus);
 164             }
 165             else if ( id == R.id.transaction_comment) {
 166                 commentFocusChanged(transactionCommentLayout, tvTransactionComment, hasFocus);
 167             }
 168         };
 169
 170         tvDescription.setOnFocusChangeListener(focusMonitor);
 171         tvAccount.setOnFocusChangeListener(focusMonitor);
 172         tvAmount.setOnFocusChangeListener(focusMonitor);
 173         tvComment.setOnFocusChangeListener(focusMonitor);
 174
 175         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
 176                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
 177         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
 178                 "name", true, this, mProfile);
 179
 180         // FIXME: react on configuration (locale) changes
 181         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 182                                                               .getMonetaryDecimalSeparator());
 183         decimalDot = ".";
 184
 185         final TextWatcher tw = new TextWatcher() {
 186             @Override
 187             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 188             }
 189
 190             @Override
 191             public void onTextChanged(CharSequence s, int start, int before, int count) {
 192             }
 193
 194             @Override
 195             public void afterTextChanged(Editable s) {
 196 //                debug("input", "text changed");
 197                 if (inUpdate)
 198                     return;
 199
 200                 Logger.debug("textWatcher", "calling syncData()");
 201                 syncData();
 202                 Logger.debug("textWatcher",
 203                         "syncData() returned, checking if transaction is submittable");
 204                 adapter.checkTransactionSubmittable();
 205                 Logger.debug("textWatcher", "done");
 206             }
 207         };
 208         final TextWatcher amountWatcher = new TextWatcher() {
 209             @Override
 210             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 211                 Logger.debug("num",
 212                         String.format(Locale.US, "beforeTextChanged: start=%d, count=%d, after=%d",
 213                                 start, count, after));
 214             }
 215             @Override
 216             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 217             @Override
 218             public void afterTextChanged(Editable s) {
 219                 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
 220                     // only one decimal separator is allowed
 221                     // plus and minus are allowed only at the beginning
 222                     String allowed = "0123456789";
 223                     String val = s.toString();
 224                     Logger.debug("input", val);
 225                     if (val.isEmpty() || (tvAmount.getSelectionStart() == 0))
 226                         allowed += "-";
 227                     if (!val.contains(decimalSeparator) && !val.contains(decimalDot))
 228                         allowed += decimalSeparator + decimalDot;
 229
 230                     tvAmount.setKeyListener(DigitsKeyListener.getInstance(allowed));
 231                 }
 232
 233                 if (syncData())
 234                     adapter.checkTransactionSubmittable();
 235             }
 236         };
 237         tvDescription.addTextChangedListener(tw);
 238         tvAccount.addTextChangedListener(tw);
 239         tvComment.addTextChangedListener(tw);
 240         tvAmount.addTextChangedListener(amountWatcher);
 241
 242         tvCurrency.setOnClickListener(v -> {
 243             CurrencySelectorFragment cpf = new CurrencySelectorFragment();
 244             cpf.showPositionAndPadding();
 245             cpf.setOnCurrencySelectedListener(c -> item.setCurrency(c));
 246             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 247             cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 248         });
 249
 250         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 251             tvAmount.setKeyListener(
 252                     DigitsKeyListener.getInstance(Data.locale.getValue(), true, true));
 253         else
 254             tvAmount.setKeyListener(
 255                     DigitsKeyListener.getInstance("0123456789+-" + decimalSeparator + decimalDot));
 256
 257         dateObserver = date -> {
 258             if (syncingData)
 259                 return;
 260             syncingData = true;
 261             try {
 262                 tvDate.setText(item.getFormattedDate());
 263             }
 264             finally {
 265                 syncingData = false;
 266             }
 267         };
 268         descriptionObserver = description -> {
 269             if (syncingData)
 270                 return;
 271             syncingData = true;
 272             try {
 273                 tvDescription.setText(description);
 274             }
 275             finally {
 276                 syncingData = false;
 277             }
 278         };
 279         hintObserver = hint -> {
 280             if (syncingData)
 281                 return;
 282             syncingData = true;
 283             try {
 284                 if (hint == null)
 285                     tvAmount.setHint(R.string.zero_amount);
 286                 else
 287                     tvAmount.setHint(hint);
 288             }
 289             finally {
 290                 syncingData = false;
 291             }
 292         };
 293         editableObserver = this::setEditable;
 294         focusedAccountObserver = index -> {
 295             if ((index != null) && index.equals(getAdapterPosition())) {
 296                 switch (item.getType()) {
 297                     case generalData:
 298                         // bad idea - double pop-up, and not really necessary.
 299                         // the user can tap the input to get the calendar
 300                         //if (!tvDate.hasFocus()) tvDate.requestFocus();
 301                         boolean focused = tvDescription.requestFocus();
 302                         tvDescription.dismissDropDown();
 303                         if (focused)
 304                             Misc.showSoftKeyboard(
 305                                     (NewTransactionActivity) tvDescription.getContext());
 306                         break;
 307                     case transactionRow:
 308                         // do nothing if a row element already has the focus
 309                         if (!itemView.hasFocus()) {
 310                             switch (item.getFocusedElement()) {
 311                                 case Amount:
 312                                     tvAmount.requestFocus();
 313                                     break;
 314                                 case Comment:
 315                                     tvComment.setVisibility(View.VISIBLE);
 316                                     tvComment.requestFocus();
 317                                     break;
 318                                 case Account:
 319                                     focused = tvAccount.requestFocus();
 320                                     tvAccount.dismissDropDown();
 321                                     if (focused)
 322                                         Misc.showSoftKeyboard(
 323                                                 (NewTransactionActivity) tvAccount.getContext());
 324                                     break;
 325                             }
 326                         }
 327
 328                         break;
 329                 }
 330             }
 331         };
 332         accountCountObserver = count -> {
 333             final int adapterPosition = getAdapterPosition();
 334             final int layoutPosition = getLayoutPosition();
 335             Logger.debug("holder",
 336                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 337                             adapterPosition, layoutPosition, item.getType()
 338                                                                  .toString()
 339                                                                  .concat(item.getType() ==
 340                                                                          ItemType.transactionRow
 341                                                                          ? String.format(Locale.US,
 342                                                                          "'%s'=%s",
 343                                                                          item.getAccount()
 344                                                                              .getAccountName(),
 345                                                                          item.getAccount()
 346                                                                              .isAmountSet()
 347                                                                          ? String.format(Locale.US,
 348                                                                                  "%.2f",
 349                                                                                  item.getAccount()
 350                                                                                      .getAmount())
 351                                                                          : "unset") : "")));
 352             if (adapterPosition == count)
 353                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 354             else
 355                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 356         };
 357
 358         localeObserver = locale -> {
 359             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 360                 tvAmount.setKeyListener(DigitsKeyListener.getInstance(locale, true, true));
 361         };
 362
 363         currencyObserver = currency -> {
 364             setCurrency(currency);
 365             adapter.checkTransactionSubmittable();
 366         };
 367
 368         currencyGapObserver =
 369                 hasGap -> updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(),
 370                         hasGap);
 371
 372         currencyPositionObserver =
 373                 position -> updateCurrencyPositionAndPadding(position, Data.currencyGap.getValue());
 374
 375         showCurrencyObserver = showCurrency -> {
 376             if (showCurrency) {
 377                 tvCurrency.setVisibility(View.VISIBLE);
 378             }
 379             else {
 380                 tvCurrency.setVisibility(View.GONE);
 381                 item.setCurrency(null);
 382             }
 383         };
 384
 385         commentObserver = comment -> {
 386             final View focusedView = tvComment.findFocus();
 387             tvComment.setTypeface(null,
 388                     (focusedView == tvComment) ? Typeface.NORMAL : Typeface.ITALIC);
 389             tvComment.setVisibility(
 390                     ((focusedView != tvComment) && Misc.isEmptyOrNull(comment)) ? View.INVISIBLE
 391                                                                                 : View.VISIBLE);
 392         };
 393
 394         showCommentsObserver = show -> {
 395             final View amountLayout = itemView.findViewById(R.id.amount_layout);
 396             ConstraintLayout.LayoutParams amountLayoutParams =
 397                     (ConstraintLayout.LayoutParams) amountLayout.getLayoutParams();
 398             ConstraintLayout.LayoutParams accountParams =
 399                     (ConstraintLayout.LayoutParams) tvAccount.getLayoutParams();
 400             if (show) {
 401                 commentLayout.setVisibility(View.VISIBLE);
 402
 403                 accountParams.endToStart = ConstraintLayout.LayoutParams.UNSET;
 404                 accountParams.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 405
 406                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.UNSET;
 407                 amountLayoutParams.topToBottom = tvAccount.getId();
 408             }
 409             else {
 410                 commentLayout.setVisibility(View.GONE);
 411
 412                 accountParams.endToStart = amountLayout.getId();
 413                 accountParams.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 414
 415                 amountLayoutParams.topToBottom = ConstraintLayout.LayoutParams.UNSET;
 416                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.PARENT_ID;
 417
 418             }
 419
 420             tvAccount.setLayoutParams(accountParams);
 421             amountLayout.setLayoutParams(amountLayoutParams);
 422
 423             transactionCommentLayout.setVisibility(show ? View.VISIBLE : View.GONE);
 424         };
 425     }
 426     private void commentFocusChanged(View layout, TextView textView, boolean hasFocus) {
 427         layout.setAlpha(hasFocus ? 1f : 0.5f);
 428         textView.setTypeface(null, hasFocus ? Typeface.NORMAL : Typeface.ITALIC);
 429         if (hasFocus)
 430             textView.setHint(R.string.transaction_account_comment_hint);
 431         else
 432             textView.setHint("");
 433
 434         if (!hasFocus && Misc.isEmptyOrNull(textView.getText()))
 435             textView.setVisibility(View.INVISIBLE);
 436     }
 437     private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
 438         ConstraintLayout.LayoutParams amountLP =
 439                 (ConstraintLayout.LayoutParams) tvAmount.getLayoutParams();
 440         ConstraintLayout.LayoutParams currencyLP =
 441                 (ConstraintLayout.LayoutParams) tvCurrency.getLayoutParams();
 442
 443         if (position == Currency.Position.before) {
 444             currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 445             currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 446
 447             amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 448             amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
 449             amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 450             amountLP.startToEnd = tvCurrency.getId();
 451
 452             tvCurrency.setGravity(Gravity.END);
 453         }
 454         else {
 455             currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 456             currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 457
 458             amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 459             amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
 460             amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 461             amountLP.endToStart = tvCurrency.getId();
 462
 463             tvCurrency.setGravity(Gravity.START);
 464         }
 465
 466         amountLP.resolveLayoutDirection(tvAmount.getLayoutDirection());
 467         currencyLP.resolveLayoutDirection(tvCurrency.getLayoutDirection());
 468
 469         tvAmount.setLayoutParams(amountLP);
 470         tvCurrency.setLayoutParams(currencyLP);
 471
 472         // distance between the amount and the currency symbol
 473         int gapSize = DimensionUtils.sp2px(tvCurrency.getContext(), 5);
 474
 475         if (position == Currency.Position.before) {
 476             tvCurrency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
 477         }
 478         else {
 479             tvCurrency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
 480         }
 481     }
 482     private void setCurrencyString(String currency) {
 483         if ((currency == null) || currency.isEmpty()) {
 484             tvCurrency.setText(R.string.currency_symbol);
 485             tvCurrency.setTextColor(0x7f000000 + (0x00ffffff & Colors.defaultTextColor));
 486         }
 487         else {
 488             tvCurrency.setText(currency);
 489             tvCurrency.setTextColor(Colors.defaultTextColor);
 490         }
 491     }
 492     private void setCurrency(Currency currency) {
 493         setCurrencyString((currency == null) ? null : currency.getName());
 494     }
 495     private void setEditable(Boolean editable) {
 496         tvDate.setEnabled(editable);
 497         tvDescription.setEnabled(editable);
 498         tvAccount.setEnabled(editable);
 499         tvAmount.setEnabled(editable);
 500     }
 501     private void beginUpdates() {
 502         if (inUpdate)
 503             throw new RuntimeException("Already in update mode");
 504         inUpdate = true;
 505     }
 506     private void endUpdates() {
 507         if (!inUpdate)
 508             throw new RuntimeException("Not in update mode");
 509         inUpdate = false;
 510     }
 511     /**
 512      * syncData()
 513      * <p>
 514      * Stores the data from the UI elements into the model item
 515      * Returns true if there were changes made that suggest transaction has to be
 516      * checked for being submittable
 517      */
 518     private boolean syncData() {
 519         if (item == null)
 520             return false;
 521
 522         if (syncingData) {
 523             Logger.debug("new-trans", "skipping syncData() loop");
 524             return false;
 525         }
 526
 527         syncingData = true;
 528
 529         try {
 530             switch (item.getType()) {
 531                 case generalData:
 532                     item.setDate(String.valueOf(tvDate.getText()));
 533                     item.setDescription(String.valueOf(tvDescription.getText()));
 534                     break;
 535                 case transactionRow:
 536                     final LedgerTransactionAccount account = item.getAccount();
 537                     account.setAccountName(String.valueOf(tvAccount.getText()));
 538
 539                     item.setComment(String.valueOf(tvComment.getText()));
 540
 541                     String amount = String.valueOf(tvAmount.getText());
 542                     amount = amount.trim();
 543
 544                     if (amount.isEmpty()) {
 545                         account.resetAmount();
 546 //                        account.setCurrency(null);
 547                     }
 548                     else {
 549                         try {
 550                             amount = amount.replace(decimalSeparator, decimalDot);
 551                             account.setAmount(Float.parseFloat(amount));
 552                         }
 553                         catch (NumberFormatException e) {
 554                             Logger.debug("new-trans", String.format(
 555                                     "assuming amount is not set due to number format exception. " +
 556                                     "input was '%s'", amount));
 557                             account.resetAmount();
 558                         }
 559                         final String curr = String.valueOf(tvCurrency.getText());
 560                         if (curr.equals(tvCurrency.getContext()
 561                                                   .getResources()
 562                                                   .getString(R.string.currency_symbol)) ||
 563                             curr.isEmpty())
 564                             account.setCurrency(null);
 565                         else
 566                             account.setCurrency(curr);
 567                     }
 568
 569                     break;
 570                 case bottomFiller:
 571                     throw new RuntimeException("Should not happen");
 572             }
 573
 574             return true;
 575         }
 576         finally {
 577             syncingData = false;
 578         }
 579     }
 580     private void pickTransactionDate() {
 581         DatePickerFragment picker = new DatePickerFragment();
 582         picker.setFutureDates(mProfile.getFutureDates());
 583         picker.setOnDatePickedListener(this);
 584         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 585                 "datePicker");
 586     }
 587     /**
 588      * setData
 589      *
 590      * @param item updates the UI elements with the data from the model item
 591      */
 592     @SuppressLint("DefaultLocale")
 593     public void setData(NewTransactionModel.Item item) {
 594         beginUpdates();
 595         try {
 596             if (this.item != null && !this.item.equals(item)) {
 597                 this.item.stopObservingDate(dateObserver);
 598                 this.item.stopObservingDescription(descriptionObserver);
 599                 this.item.stopObservingAmountHint(hintObserver);
 600                 this.item.stopObservingEditableFlag(editableObserver);
 601                 this.item.getModel()
 602                          .stopObservingFocusedItem(focusedAccountObserver);
 603                 this.item.getModel()
 604                          .stopObservingAccountCount(accountCountObserver);
 605                 Data.currencySymbolPosition.removeObserver(currencyPositionObserver);
 606                 Data.currencyGap.removeObserver(currencyGapObserver);
 607                 Data.locale.removeObserver(localeObserver);
 608                 this.item.stopObservingCurrency(currencyObserver);
 609                 this.item.getModel().showCurrency.removeObserver(showCurrencyObserver);
 610                 this.item.stopObservingComment(commentObserver);
 611                 this.item.getModel().showComments.removeObserver(showCommentsObserver);
 612
 613                 this.item = null;
 614             }
 615
 616             switch (item.getType()) {
 617                 case generalData:
 618                     tvDate.setText(item.getFormattedDate());
 619                     tvDescription.setText(item.getDescription());
 620                     lHead.setVisibility(View.VISIBLE);
 621                     lAccount.setVisibility(View.GONE);
 622                     lPadding.setVisibility(View.GONE);
 623                     setEditable(true);
 624                     break;
 625                 case transactionRow:
 626                     LedgerTransactionAccount acc = item.getAccount();
 627                     tvAccount.setText(acc.getAccountName());
 628                     tvComment.setText(acc.getComment());
 629                     if (acc.isAmountSet()) {
 630                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 631                     }
 632                     else {
 633                         tvAmount.setText("");
 634 //                        tvAmount.setHint(R.string.zero_amount);
 635                     }
 636                     tvAmount.setHint(item.getAmountHint());
 637                     setCurrencyString(acc.getCurrency());
 638                     lHead.setVisibility(View.GONE);
 639                     lAccount.setVisibility(View.VISIBLE);
 640                     lPadding.setVisibility(View.GONE);
 641                     setEditable(true);
 642                     break;
 643                 case bottomFiller:
 644                     lHead.setVisibility(View.GONE);
 645                     lAccount.setVisibility(View.GONE);
 646                     lPadding.setVisibility(View.VISIBLE);
 647                     setEditable(false);
 648                     break;
 649             }
 650             if (this.item == null) { // was null or has changed
 651                 this.item = item;
 652                 final NewTransactionActivity activity =
 653                         (NewTransactionActivity) tvDescription.getContext();
 654
 655                 if (!item.isOfType(ItemType.bottomFiller)) {
 656                     item.observeEditableFlag(activity, editableObserver);
 657                     item.getModel()
 658                         .observeFocusedItem(activity, focusedAccountObserver);
 659                     item.getModel()
 660                         .observeShowComments(activity, showCommentsObserver);
 661                 }
 662                 switch (item.getType()) {
 663                     case generalData:
 664                         item.observeDate(activity, dateObserver);
 665                         item.observeDescription(activity, descriptionObserver);
 666                         break;
 667                     case transactionRow:
 668                         item.observeAmountHint(activity, hintObserver);
 669                         Data.currencySymbolPosition.observe(activity, currencyPositionObserver);
 670                         Data.currencyGap.observe(activity, currencyGapObserver);
 671                         Data.locale.observe(activity, localeObserver);
 672                         item.observeCurrency(activity, currencyObserver);
 673                         item.getModel().showCurrency.observe(activity, showCurrencyObserver);
 674                         item.observeComment(activity, commentObserver);
 675                         item.getModel()
 676                             .observeAccountCount(activity, accountCountObserver);
 677                         break;
 678                 }
 679             }
 680         }
 681         finally {
 682             endUpdates();
 683         }
 684     }
 685     @Override
 686     public void onDatePicked(int year, int month, int day) {
 687         final Calendar c = GregorianCalendar.getInstance();
 688         c.set(year, month, day);
 689         item.setDate(c.getTime());
 690         boolean focused = tvDescription.requestFocus();
 691         if (focused)
 692             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 693
 694     }
 695     @Override
 696     public void descriptionSelected(String description) {
 697         tvAccount.setText(description);
 698         tvAmount.requestFocus(View.FOCUS_FORWARD);
 699     }
 700 }