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> transactionCommentObserver;
  85     private Observer<String> hintObserver;
  86     private Observer<Integer> focusedAccountObserver;
  87     private Observer<Integer> accountCountObserver;
  88     private Observer<Boolean> editableObserver;
  89     private Observer<Currency.Position> currencyPositionObserver;
  90     private Observer<Boolean> currencyGapObserver;
  91     private Observer<Locale> localeObserver;
  92     private Observer<Currency> currencyObserver;
  93     private Observer<Boolean> showCurrencyObserver;
  94     private Observer<String> commentObserver;
  95     private boolean inUpdate = false;
  96     private boolean syncingData = false;
  97     private View commentButton;
  98     //TODO multiple amounts with different currencies per posting
  99     NewTransactionItemHolder(@NonNull View itemView, NewTransactionItemsAdapter adapter) {
 100         super(itemView);
 101         lAccount = itemView.findViewById(R.id.ntr_account);
 102         tvAccount = lAccount.findViewById(R.id.account_row_acc_name);
 103         tvComment = lAccount.findViewById(R.id.comment);
 104         tvTransactionComment = itemView.findViewById(R.id.transaction_comment);
 105         new TextViewClearHelper().attachToTextView((EditText) tvComment);
 106         commentButton = lAccount.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         lPadding = itemView.findViewById(R.id.ntr_padding);
 113         final View commentLayout = itemView.findViewById(R.id.comment_layout);
 114         final View transactionCommentLayout =
 115                 itemView.findViewById(R.id.transaction_comment_layout);
 116
 117         tvDescription.setNextFocusForwardId(View.NO_ID);
 118         tvAccount.setNextFocusForwardId(View.NO_ID);
 119         tvAmount.setNextFocusForwardId(View.NO_ID); // magic!
 120
 121         tvDate.setOnClickListener(v -> pickTransactionDate());
 122
 123         commentButton.setOnClickListener(v -> {
 124             tvComment.setVisibility(View.VISIBLE);
 125             tvComment.requestFocus();
 126         });
 127
 128         transactionCommentLayout.findViewById(R.id.comment_button)
 129                 .setOnClickListener(v -> {
 130                     tvTransactionComment.setVisibility(View.VISIBLE);
 131                     tvTransactionComment.requestFocus();
 132                 });
 133
 134         mProfile = Data.profile.getValue();
 135         if (mProfile == null)
 136             throw new AssertionError();
 137
 138         View.OnFocusChangeListener focusMonitor = (v, hasFocus) -> {
 139             final int id = v.getId();
 140             if (hasFocus) {
 141                 boolean wasSyncing = syncingData;
 142                 syncingData = true;
 143                 try {
 144                     final int pos = getAdapterPosition();
 145                     adapter.updateFocusedItem(pos);
 146                     switch (id) {
 147                         case R.id.account_row_acc_name:
 148                             adapter.noteFocusIsOnAccount(pos);
 149                             break;
 150                         case R.id.account_row_acc_amounts:
 151                             adapter.noteFocusIsOnAmount(pos);
 152                             break;
 153                         case R.id.comment:
 154                             adapter.noteFocusIsOnComment(pos);
 155                             break;
 156                         case R.id.transaction_comment:
 157                             adapter.noteFocusIsOnTransactionComment(pos);
 158                             break;
 159                         case R.id.new_transaction_description:
 160                             adapter.noteFocusIsOnDescription(pos);
 161                             break;
 162                     }
 163                 }
 164                 finally {
 165                     syncingData = wasSyncing;
 166                 }
 167             }
 168
 169             if (id == R.id.comment) {
 170                 commentFocusChanged(commentLayout, tvComment, hasFocus);
 171             }
 172             else if ( id == R.id.transaction_comment) {
 173                 commentFocusChanged(transactionCommentLayout, tvTransactionComment, hasFocus);
 174             }
 175         };
 176
 177         tvDescription.setOnFocusChangeListener(focusMonitor);
 178         tvAccount.setOnFocusChangeListener(focusMonitor);
 179         tvAmount.setOnFocusChangeListener(focusMonitor);
 180         tvComment.setOnFocusChangeListener(focusMonitor);
 181         tvTransactionComment.setOnFocusChangeListener(focusMonitor);
 182
 183         MLDB.hookAutocompletionAdapter(tvDescription.getContext(), tvDescription,
 184                 MLDB.DESCRIPTION_HISTORY_TABLE, "description", false, adapter, mProfile);
 185         MLDB.hookAutocompletionAdapter(tvAccount.getContext(), tvAccount, MLDB.ACCOUNTS_TABLE,
 186                 "name", true, this, mProfile);
 187
 188         // FIXME: react on configuration (locale) changes
 189         decimalSeparator = String.valueOf(DecimalFormatSymbols.getInstance()
 190                                                               .getMonetaryDecimalSeparator());
 191         decimalDot = ".";
 192
 193         final TextWatcher tw = new TextWatcher() {
 194             @Override
 195             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 196             }
 197
 198             @Override
 199             public void onTextChanged(CharSequence s, int start, int before, int count) {
 200             }
 201
 202             @Override
 203             public void afterTextChanged(Editable s) {
 204 //                debug("input", "text changed");
 205                 if (inUpdate)
 206                     return;
 207
 208                 Logger.debug("textWatcher", "calling syncData()");
 209                 syncData();
 210                 Logger.debug("textWatcher",
 211                         "syncData() returned, checking if transaction is submittable");
 212                 adapter.checkTransactionSubmittable();
 213                 Logger.debug("textWatcher", "done");
 214             }
 215         };
 216         final TextWatcher amountWatcher = new TextWatcher() {
 217             @Override
 218             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 219                 Logger.debug("num",
 220                         String.format(Locale.US, "beforeTextChanged: start=%d, count=%d, after=%d",
 221                                 start, count, after));
 222             }
 223             @Override
 224             public void onTextChanged(CharSequence s, int start, int before, int count) {}
 225             @Override
 226             public void afterTextChanged(Editable s) {
 227                 if (Build.VERSION.SDK_INT < Build.VERSION_CODES.O) {
 228                     // only one decimal separator is allowed
 229                     // plus and minus are allowed only at the beginning
 230                     String allowed = "0123456789";
 231                     String val = s.toString();
 232                     Logger.debug("input", val);
 233                     if (val.isEmpty() || (tvAmount.getSelectionStart() == 0))
 234                         allowed += "-";
 235                     if (!val.contains(decimalSeparator) && !val.contains(decimalDot))
 236                         allowed += decimalSeparator + decimalDot;
 237
 238                     tvAmount.setKeyListener(DigitsKeyListener.getInstance(allowed));
 239                 }
 240
 241                 if (syncData())
 242                     adapter.checkTransactionSubmittable();
 243             }
 244         };
 245         tvDescription.addTextChangedListener(tw);
 246         tvTransactionComment.addTextChangedListener(tw);
 247         tvAccount.addTextChangedListener(tw);
 248         tvComment.addTextChangedListener(tw);
 249         tvAmount.addTextChangedListener(amountWatcher);
 250
 251         tvCurrency.setOnClickListener(v -> {
 252             CurrencySelectorFragment cpf = new CurrencySelectorFragment();
 253             cpf.showPositionAndPadding();
 254             cpf.setOnCurrencySelectedListener(c -> item.setCurrency(c));
 255             final AppCompatActivity activity = (AppCompatActivity) v.getContext();
 256             cpf.show(activity.getSupportFragmentManager(), "currency-selector");
 257         });
 258
 259         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 260             tvAmount.setKeyListener(
 261                     DigitsKeyListener.getInstance(Data.locale.getValue(), true, true));
 262         else
 263             tvAmount.setKeyListener(
 264                     DigitsKeyListener.getInstance("0123456789+-" + decimalSeparator + decimalDot));
 265
 266         dateObserver = date -> {
 267             if (syncingData)
 268                 return;
 269             syncingData = true;
 270             try {
 271                 tvDate.setText(item.getFormattedDate());
 272             }
 273             finally {
 274                 syncingData = false;
 275             }
 276         };
 277         descriptionObserver = description -> {
 278             if (syncingData)
 279                 return;
 280             syncingData = true;
 281             try {
 282                 tvDescription.setText(description);
 283             }
 284             finally {
 285                 syncingData = false;
 286             }
 287         };
 288         transactionCommentObserver = transactionComment -> {
 289             final View focusedView = tvTransactionComment.findFocus();
 290             tvTransactionComment.setTypeface(null,
 291                     (focusedView == tvTransactionComment) ? Typeface.NORMAL : Typeface.ITALIC);
 292             tvTransactionComment.setVisibility(((focusedView != tvTransactionComment) &&
 293                                                 Misc.isEmptyOrNull(transactionComment))
 294                                                ? View.INVISIBLE : View.VISIBLE);
 295
 296         };
 297         hintObserver = hint -> {
 298             if (syncingData)
 299                 return;
 300             syncingData = true;
 301             try {
 302                 if (hint == null)
 303                     tvAmount.setHint(R.string.zero_amount);
 304                 else
 305                     tvAmount.setHint(hint);
 306             }
 307             finally {
 308                 syncingData = false;
 309             }
 310         };
 311         editableObserver = this::setEditable;
 312         focusedAccountObserver = index -> {
 313             if ((index == null) || !index.equals(getAdapterPosition()) || itemView.hasFocus())
 314                 return;
 315
 316             switch (item.getType()) {
 317                 case generalData:
 318                     // bad idea - double pop-up, and not really necessary.
 319                     // the user can tap the input to get the calendar
 320                     //if (!tvDate.hasFocus()) tvDate.requestFocus();
 321                     switch (item.getFocusedElement()) {
 322                         case TransactionComment:
 323                             tvTransactionComment.setVisibility(View.VISIBLE);
 324                             tvTransactionComment.requestFocus();
 325                             break;
 326                         case Description:
 327                             boolean focused = tvDescription.requestFocus();
 328                             tvDescription.dismissDropDown();
 329                             if (focused)
 330                                 Misc.showSoftKeyboard(
 331                                         (NewTransactionActivity) tvDescription.getContext());
 332                             break;
 333                     }
 334                     break;
 335                 case transactionRow:
 336                     switch (item.getFocusedElement()) {
 337                         case Amount:
 338                             tvAmount.requestFocus();
 339                             break;
 340                         case Comment:
 341                             tvComment.setVisibility(View.VISIBLE);
 342                             tvComment.requestFocus();
 343                             break;
 344                         case Account:
 345                             boolean focused = tvAccount.requestFocus();
 346                             tvAccount.dismissDropDown();
 347                             if (focused)
 348                                 Misc.showSoftKeyboard(
 349                                         (NewTransactionActivity) tvAccount.getContext());
 350                             break;
 351                     }
 352
 353                     break;
 354             }
 355         };
 356         accountCountObserver = count -> {
 357             final int adapterPosition = getAdapterPosition();
 358             final int layoutPosition = getLayoutPosition();
 359             Logger.debug("holder",
 360                     String.format(Locale.US, "count=%d; pos=%d, layoutPos=%d [%s]", count,
 361                             adapterPosition, layoutPosition, item.getType()
 362                                                                  .toString()
 363                                                                  .concat(item.getType() ==
 364                                                                          ItemType.transactionRow
 365                                                                          ? String.format(Locale.US,
 366                                                                          "'%s'=%s",
 367                                                                          item.getAccount()
 368                                                                              .getAccountName(),
 369                                                                          item.getAccount()
 370                                                                              .isAmountSet()
 371                                                                          ? String.format(Locale.US,
 372                                                                                  "%.2f",
 373                                                                                  item.getAccount()
 374                                                                                      .getAmount())
 375                                                                          : "unset") : "")));
 376             if (adapterPosition == count)
 377                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_DONE);
 378             else
 379                 tvAmount.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 380         };
 381
 382         localeObserver = locale -> {
 383             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
 384                 tvAmount.setKeyListener(DigitsKeyListener.getInstance(locale, true, true));
 385         };
 386
 387         currencyObserver = currency -> {
 388             setCurrency(currency);
 389             adapter.checkTransactionSubmittable();
 390         };
 391
 392         currencyGapObserver =
 393                 hasGap -> updateCurrencyPositionAndPadding(Data.currencySymbolPosition.getValue(),
 394                         hasGap);
 395
 396         currencyPositionObserver =
 397                 position -> updateCurrencyPositionAndPadding(position, Data.currencyGap.getValue());
 398
 399         showCurrencyObserver = showCurrency -> {
 400             if (showCurrency) {
 401                 tvCurrency.setVisibility(View.VISIBLE);
 402             }
 403             else {
 404                 tvCurrency.setVisibility(View.GONE);
 405                 item.setCurrency(null);
 406             }
 407         };
 408
 409         commentObserver = comment -> {
 410             final View focusedView = tvComment.findFocus();
 411             tvComment.setTypeface(null,
 412                     (focusedView == tvComment) ? Typeface.NORMAL : Typeface.ITALIC);
 413             tvComment.setVisibility(
 414                     ((focusedView != tvComment) && Misc.isEmptyOrNull(comment)) ? View.INVISIBLE
 415                                                                                 : View.VISIBLE);
 416         };
 417
 418         showCommentsObserver = show -> {
 419             final View amountLayout = itemView.findViewById(R.id.amount_layout);
 420             ConstraintLayout.LayoutParams amountLayoutParams =
 421                     (ConstraintLayout.LayoutParams) amountLayout.getLayoutParams();
 422             ConstraintLayout.LayoutParams accountParams =
 423                     (ConstraintLayout.LayoutParams) tvAccount.getLayoutParams();
 424             if (show) {
 425                 accountParams.endToStart = ConstraintLayout.LayoutParams.UNSET;
 426                 accountParams.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 427
 428                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.UNSET;
 429                 amountLayoutParams.topToBottom = tvAccount.getId();
 430
 431                 commentLayout.setVisibility(View.VISIBLE);
 432             }
 433             else {
 434                 accountParams.endToStart = amountLayout.getId();
 435                 accountParams.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 436
 437                 amountLayoutParams.topToBottom = ConstraintLayout.LayoutParams.UNSET;
 438                 amountLayoutParams.topToTop = ConstraintLayout.LayoutParams.PARENT_ID;
 439
 440                 commentLayout.setVisibility(View.GONE);
 441             }
 442
 443             tvAccount.setLayoutParams(accountParams);
 444             amountLayout.setLayoutParams(amountLayoutParams);
 445
 446             transactionCommentLayout.setVisibility(show ? View.VISIBLE : View.GONE);
 447         };
 448     }
 449     private void commentFocusChanged(View layout, TextView textView, boolean hasFocus) {
 450         int textColor;
 451         if (hasFocus) {
 452             textColor = Colors.defaultTextColor;
 453             textView.setTypeface(null, Typeface.NORMAL);
 454             textView.setHint(R.string.transaction_account_comment_hint);
 455         }
 456         else {
 457             textColor = Colors.defaultTextColorDisabled;
 458             textView.setTypeface(null, Typeface.ITALIC);
 459             textView.setHint("");
 460             if (Misc.isEmptyOrNull(textView.getText())) {
 461                 textView.setVisibility(View.INVISIBLE);
 462             }
 463         }
 464         textView.setTextColor(textColor);
 465
 466     }
 467     private void updateCurrencyPositionAndPadding(Currency.Position position, boolean hasGap) {
 468         ConstraintLayout.LayoutParams amountLP =
 469                 (ConstraintLayout.LayoutParams) tvAmount.getLayoutParams();
 470         ConstraintLayout.LayoutParams currencyLP =
 471                 (ConstraintLayout.LayoutParams) tvCurrency.getLayoutParams();
 472
 473         if (position == Currency.Position.before) {
 474             currencyLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 475             currencyLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 476
 477             amountLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 478             amountLP.endToStart = ConstraintLayout.LayoutParams.UNSET;
 479             amountLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 480             amountLP.startToEnd = tvCurrency.getId();
 481
 482             tvCurrency.setGravity(Gravity.END);
 483         }
 484         else {
 485             currencyLP.startToStart = ConstraintLayout.LayoutParams.UNSET;
 486             currencyLP.endToEnd = ConstraintLayout.LayoutParams.PARENT_ID;
 487
 488             amountLP.startToStart = ConstraintLayout.LayoutParams.PARENT_ID;
 489             amountLP.startToEnd = ConstraintLayout.LayoutParams.UNSET;
 490             amountLP.endToEnd = ConstraintLayout.LayoutParams.UNSET;
 491             amountLP.endToStart = tvCurrency.getId();
 492
 493             tvCurrency.setGravity(Gravity.START);
 494         }
 495
 496         amountLP.resolveLayoutDirection(tvAmount.getLayoutDirection());
 497         currencyLP.resolveLayoutDirection(tvCurrency.getLayoutDirection());
 498
 499         tvAmount.setLayoutParams(amountLP);
 500         tvCurrency.setLayoutParams(currencyLP);
 501
 502         // distance between the amount and the currency symbol
 503         int gapSize = DimensionUtils.sp2px(tvCurrency.getContext(), 5);
 504
 505         if (position == Currency.Position.before) {
 506             tvCurrency.setPaddingRelative(0, 0, hasGap ? gapSize : 0, 0);
 507         }
 508         else {
 509             tvCurrency.setPaddingRelative(hasGap ? gapSize : 0, 0, 0, 0);
 510         }
 511     }
 512     private void setCurrencyString(String currency) {
 513         if ((currency == null) || currency.isEmpty()) {
 514             tvCurrency.setText(R.string.currency_symbol);
 515             tvCurrency.setTextColor(0x7f000000 + (0x00ffffff & Colors.defaultTextColor));
 516         }
 517         else {
 518             tvCurrency.setText(currency);
 519             tvCurrency.setTextColor(Colors.defaultTextColor);
 520         }
 521     }
 522     private void setCurrency(Currency currency) {
 523         setCurrencyString((currency == null) ? null : currency.getName());
 524     }
 525     private void setEditable(Boolean editable) {
 526         tvDate.setEnabled(editable);
 527         tvDescription.setEnabled(editable);
 528         tvAccount.setEnabled(editable);
 529         tvAmount.setEnabled(editable);
 530     }
 531     private void beginUpdates() {
 532         if (inUpdate)
 533             throw new RuntimeException("Already in update mode");
 534         inUpdate = true;
 535     }
 536     private void endUpdates() {
 537         if (!inUpdate)
 538             throw new RuntimeException("Not in update mode");
 539         inUpdate = false;
 540     }
 541     /**
 542      * syncData()
 543      * <p>
 544      * Stores the data from the UI elements into the model item
 545      * Returns true if there were changes made that suggest transaction has to be
 546      * checked for being submittable
 547      */
 548     private boolean syncData() {
 549         if (item == null)
 550             return false;
 551
 552         if (syncingData) {
 553             Logger.debug("new-trans", "skipping syncData() loop");
 554             return false;
 555         }
 556
 557         syncingData = true;
 558
 559         try {
 560             switch (item.getType()) {
 561                 case generalData:
 562                     item.setDate(String.valueOf(tvDate.getText()));
 563                     item.setDescription(String.valueOf(tvDescription.getText()));
 564                     item.setTransactionComment(String.valueOf(tvTransactionComment.getText()));
 565                     break;
 566                 case transactionRow:
 567                     final LedgerTransactionAccount account = item.getAccount();
 568                     account.setAccountName(String.valueOf(tvAccount.getText()));
 569
 570                     item.setComment(String.valueOf(tvComment.getText()));
 571
 572                     String amount = String.valueOf(tvAmount.getText());
 573                     amount = amount.trim();
 574
 575                     if (amount.isEmpty()) {
 576                         account.resetAmount();
 577 //                        account.setCurrency(null);
 578                     }
 579                     else {
 580                         try {
 581                             amount = amount.replace(decimalSeparator, decimalDot);
 582                             account.setAmount(Float.parseFloat(amount));
 583                         }
 584                         catch (NumberFormatException e) {
 585                             Logger.debug("new-trans", String.format(
 586                                     "assuming amount is not set due to number format exception. " +
 587                                     "input was '%s'", amount));
 588                             account.resetAmount();
 589                         }
 590                         final String curr = String.valueOf(tvCurrency.getText());
 591                         if (curr.equals(tvCurrency.getContext()
 592                                                   .getResources()
 593                                                   .getString(R.string.currency_symbol)) ||
 594                             curr.isEmpty())
 595                             account.setCurrency(null);
 596                         else
 597                             account.setCurrency(curr);
 598                     }
 599
 600                     break;
 601                 case bottomFiller:
 602                     throw new RuntimeException("Should not happen");
 603             }
 604
 605             return true;
 606         }
 607         finally {
 608             syncingData = false;
 609         }
 610     }
 611     private void pickTransactionDate() {
 612         DatePickerFragment picker = new DatePickerFragment();
 613         picker.setFutureDates(mProfile.getFutureDates());
 614         picker.setOnDatePickedListener(this);
 615         picker.show(((NewTransactionActivity) tvDate.getContext()).getSupportFragmentManager(),
 616                 "datePicker");
 617     }
 618     /**
 619      * setData
 620      *
 621      * @param item updates the UI elements with the data from the model item
 622      */
 623     @SuppressLint("DefaultLocale")
 624     public void setData(NewTransactionModel.Item item) {
 625         beginUpdates();
 626         try {
 627             if (this.item != null && !this.item.equals(item)) {
 628                 this.item.stopObservingDate(dateObserver);
 629                 this.item.stopObservingDescription(descriptionObserver);
 630                 this.item.stopObservingTransactionComment(transactionCommentObserver);
 631                 this.item.stopObservingAmountHint(hintObserver);
 632                 this.item.stopObservingEditableFlag(editableObserver);
 633                 this.item.getModel()
 634                          .stopObservingFocusedItem(focusedAccountObserver);
 635                 this.item.getModel()
 636                          .stopObservingAccountCount(accountCountObserver);
 637                 Data.currencySymbolPosition.removeObserver(currencyPositionObserver);
 638                 Data.currencyGap.removeObserver(currencyGapObserver);
 639                 Data.locale.removeObserver(localeObserver);
 640                 this.item.stopObservingCurrency(currencyObserver);
 641                 this.item.getModel().showCurrency.removeObserver(showCurrencyObserver);
 642                 this.item.stopObservingComment(commentObserver);
 643                 this.item.getModel().showComments.removeObserver(showCommentsObserver);
 644
 645                 this.item = null;
 646             }
 647
 648             switch (item.getType()) {
 649                 case generalData:
 650                     tvDate.setText(item.getFormattedDate());
 651                     tvDescription.setText(item.getDescription());
 652                     tvTransactionComment.setText(item.getTransactionComment());
 653                     lHead.setVisibility(View.VISIBLE);
 654                     lAccount.setVisibility(View.GONE);
 655                     lPadding.setVisibility(View.GONE);
 656                     setEditable(true);
 657                     break;
 658                 case transactionRow:
 659                     LedgerTransactionAccount acc = item.getAccount();
 660                     tvAccount.setText(acc.getAccountName());
 661                     tvComment.setText(acc.getComment());
 662                     if (acc.isAmountSet()) {
 663                         tvAmount.setText(String.format("%1.2f", acc.getAmount()));
 664                     }
 665                     else {
 666                         tvAmount.setText("");
 667 //                        tvAmount.setHint(R.string.zero_amount);
 668                     }
 669                     tvAmount.setHint(item.getAmountHint());
 670                     setCurrencyString(acc.getCurrency());
 671                     lHead.setVisibility(View.GONE);
 672                     lAccount.setVisibility(View.VISIBLE);
 673                     lPadding.setVisibility(View.GONE);
 674                     setEditable(true);
 675                     break;
 676                 case bottomFiller:
 677                     lHead.setVisibility(View.GONE);
 678                     lAccount.setVisibility(View.GONE);
 679                     lPadding.setVisibility(View.VISIBLE);
 680                     setEditable(false);
 681                     break;
 682             }
 683             if (this.item == null) { // was null or has changed
 684                 this.item = item;
 685                 final NewTransactionActivity activity =
 686                         (NewTransactionActivity) tvDescription.getContext();
 687
 688                 if (!item.isOfType(ItemType.bottomFiller)) {
 689                     item.observeEditableFlag(activity, editableObserver);
 690                     item.getModel()
 691                         .observeFocusedItem(activity, focusedAccountObserver);
 692                     item.getModel()
 693                         .observeShowComments(activity, showCommentsObserver);
 694                 }
 695                 switch (item.getType()) {
 696                     case generalData:
 697                         item.observeDate(activity, dateObserver);
 698                         item.observeDescription(activity, descriptionObserver);
 699                         item.observeTransactionComment(activity, transactionCommentObserver);
 700                         break;
 701                     case transactionRow:
 702                         item.observeAmountHint(activity, hintObserver);
 703                         Data.currencySymbolPosition.observe(activity, currencyPositionObserver);
 704                         Data.currencyGap.observe(activity, currencyGapObserver);
 705                         Data.locale.observe(activity, localeObserver);
 706                         item.observeCurrency(activity, currencyObserver);
 707                         item.getModel().showCurrency.observe(activity, showCurrencyObserver);
 708                         item.observeComment(activity, commentObserver);
 709                         item.getModel()
 710                             .observeAccountCount(activity, accountCountObserver);
 711                         break;
 712                 }
 713             }
 714         }
 715         finally {
 716             endUpdates();
 717         }
 718     }
 719     @Override
 720     public void onDatePicked(int year, int month, int day) {
 721         final Calendar c = GregorianCalendar.getInstance();
 722         c.set(year, month, day);
 723         item.setDate(c.getTime());
 724         boolean focused = tvDescription.requestFocus();
 725         if (focused)
 726             Misc.showSoftKeyboard((NewTransactionActivity) tvAccount.getContext());
 727
 728     }
 729     @Override
 730     public void descriptionSelected(String description) {
 731         tvAccount.setText(description);
 732         tvAmount.requestFocus(View.FOCUS_FORWARD);
 733     }
 734 }